Merge pull request #385 from gerlofvanek/update-fix

Fix Update notification.

.cirrus.yml

@@ -6,7 +6,7 @@ lint_task:
     - pip install flake8 codespell
   script:
     - flake8 --version
-    - PYTHONWARNINGS="ignore" flake8 --ignore=E501,F841,W503 --exclude=basicswap/contrib,basicswap/interface/contrib,messages_pb2.py,.eggs,.tox,bin/install_certifi.py
+    - flake8 --ignore=E203,E501,W503 --exclude=basicswap/contrib,basicswap/interface/contrib,.eggs,.tox,bin/install_certifi.py
     - codespell --check-filenames --disable-colors --quiet-level=7 --ignore-words=tests/lint/spelling.ignore-words.txt -S .git,.eggs,.tox,pgp,*.pyc,*basicswap/contrib,*basicswap/interface/contrib,*mnemonics.py,bin/install_certifi.py,*basicswap/static
 
 test_task:
@@ -16,6 +16,7 @@ test_task:
     - BIN_DIR: /tmp/cached_bin
     - PARTICL_BINDIR: ${BIN_DIR}/particl
     - BITCOIN_BINDIR: ${BIN_DIR}/bitcoin
+    - BITCOINCASH_BINDIR: ${BIN_DIR}/bitcoincash
     - LITECOIN_BINDIR: ${BIN_DIR}/litecoin
     - XMR_BINDIR: ${BIN_DIR}/monero
   setup_script:
@@ -29,7 +30,7 @@ test_task:
     fingerprint_script:
       - basicswap-prepare -v
     populate_script:
-      - basicswap-prepare --bindir=/tmp/cached_bin --preparebinonly --withcoins=particl,bitcoin,litecoin,monero
+      - basicswap-prepare --bindir=/tmp/cached_bin --preparebinonly --withcoins=particl,bitcoin,bitcoincash,litecoin,monero
   script:
     - cd "${CIRRUS_WORKING_DIR}"
     - export DATADIRS="${TEST_DIR}"

.djlintrc

@@ -0,0 +1,3 @@
+{
+"indent": 2
+}

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "pip" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 20
+    target-branch: "dev"

.github/workflows/ci.yml

@@ -0,0 +1,120 @@
+name: ci
+
+on: [push, pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+env:
+  BIN_DIR: /tmp/cached_bin
+  TEST_RELOAD_PATH: /tmp/test_basicswap
+  BSX_SELENIUM_DRIVER: firefox-ci
+  XMR_RPC_USER: xmr_user
+  XMR_RPC_PWD: xmr_pwd
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.12"]
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        if [ $(dpkg-query -W -f='${Status}' firefox 2>/dev/null | grep -c "ok installed") -eq 0 ]; then
+          install -d -m 0755 /etc/apt/keyrings
+          wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null
+          echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null
+          echo "Package: *" | sudo tee /etc/apt/preferences.d/mozilla
+          echo "Pin: origin packages.mozilla.org" | sudo tee -a /etc/apt/preferences.d/mozilla
+          echo "Pin-Priority: 1000" | sudo tee -a /etc/apt/preferences.d/mozilla
+          sudo apt-get update
+          sudo apt-get install -y firefox
+        fi
+        python -m pip install --upgrade pip
+        pip install python-gnupg
+        pip install -e .[dev]
+        pip install -r requirements.txt --require-hashes
+    - name: Install
+      run: |
+        pip install .
+        # Print the core versions to a file for caching
+        basicswap-prepare --version --withcoins=bitcoin | tail -n +2 > core_versions.txt
+        cat core_versions.txt
+    - name: Run flake8
+      run: |
+        flake8 --ignore=E203,E501,W503 --exclude=basicswap/contrib,basicswap/interface/contrib,.eggs,.tox,bin/install_certifi.py
+    - name: Run codespell
+      run: |
+        codespell --check-filenames --disable-colors --quiet-level=7 --ignore-words=tests/lint/spelling.ignore-words.txt -S .git,.eggs,.tox,pgp,*.pyc,*basicswap/contrib,*basicswap/interface/contrib,*mnemonics.py,bin/install_certifi.py,*basicswap/static
+    - name: Run black
+      run: |
+        black --check --diff --exclude="contrib" .
+    - name: Run test_other
+      run: |
+        pytest tests/basicswap/test_other.py
+    - name: Cache coin cores
+      id: cache-cores
+      uses: actions/cache@v3
+      env:
+        cache-name: cache-cores
+      with:
+        path: /tmp/cached_bin
+        key: cores-${{ runner.os }}-${{ hashFiles('**/core_versions.txt') }}
+
+    - if: ${{ steps.cache-cores.outputs.cache-hit != 'true' }}
+      name: Running basicswap-prepare
+      run: |
+        basicswap-prepare --bindir="$BIN_DIR" --preparebinonly --withcoins=particl,bitcoin,monero
+    - name: Run test_prepare
+      run: |
+        export PYTHONPATH=$(pwd)
+        export TEST_BIN_PATH="$BIN_DIR"
+        export TEST_PATH=/tmp/test_prepare
+        pytest tests/basicswap/extended/test_prepare.py
+    - name: Run test_xmr
+      run: |
+        export PYTHONPATH=$(pwd)
+        export PARTICL_BINDIR="$BIN_DIR/particl"
+        export BITCOIN_BINDIR="$BIN_DIR/bitcoin"
+        export XMR_BINDIR="$BIN_DIR/monero"
+        pytest tests/basicswap/test_btc_xmr.py::TestBTC -k "test_003_api or test_02_a_leader_recover_a_lock_tx"
+    - name: Run test_encrypted_xmr_reload
+      run: |
+        export PYTHONPATH=$(pwd)
+        export TEST_PATH=${TEST_RELOAD_PATH}
+        mkdir -p ${TEST_PATH}/bin
+        cp -r $BIN_DIR/* ${TEST_PATH}/bin/
+        pytest tests/basicswap/extended/test_encrypted_xmr_reload.py
+    - name: Run selenium tests
+      run: |
+        export TEST_PATH=/tmp/test_persistent
+        mkdir -p ${TEST_PATH}/bin
+        cp -r $BIN_DIR/* ${TEST_PATH}/bin/
+        export PYTHONPATH=$(pwd)
+        python tests/basicswap/extended/test_xmr_persistent.py > /tmp/log.txt 2>&1 & TEST_NETWORK_PID=$!
+        echo "Starting test_xmr_persistent, PID $TEST_NETWORK_PID"
+        i=0
+        until curl -s -f -o /dev/null "http://localhost:12701/json/coins"
+        do
+          tail -n 1 /tmp/log.txt
+          sleep 2
+          ((++i))
+          if [ $i -ge 60 ]; then
+            echo "Timed out waiting for test_xmr_persistent, PID $TEST_NETWORK_PID"
+            kill $TEST_NETWORK_PID
+            (exit 1)  # Fail test
+            break
+          fi
+        done
+        echo "Running test_settings.py"
+        python tests/basicswap/selenium/test_settings.py
+        echo "Running test_swap_direction.py"
+        python tests/basicswap/selenium/test_swap_direction.py
+        kill $TEST_NETWORK_PID

.github/workflows/lint.yml

@@ -1,26 +0,0 @@
-name: lint
-
-on: [push, pull_request]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.12"]
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install flake8 codespell
-    - name: Running flake8
-      run: |
-        PYTHONWARNINGS="ignore" flake8 --ignore=E501,F841,W503 --exclude=basicswap/contrib,basicswap/interface/contrib,messages_pb2.py,.eggs,.tox,bin/install_certifi.py
-    - name: Running codespell
-      run: |
-        codespell --check-filenames --disable-colors --quiet-level=7 --ignore-words=tests/lint/spelling.ignore-words.txt -S .git,.eggs,.tox,pgp,*.pyc,*basicswap/contrib,*basicswap/interface/contrib,*mnemonics.py,bin/install_certifi.py,*basicswap/static

.gitignore

@@ -1,5 +1,6 @@
 old/
 build/
+venv/
 *.pyc
 __pycache__
 /dist/
@@ -8,8 +9,14 @@ __pycache__
 /*.eggs
 .tox
 .eggs
+.ruff_cache
+.pytest_cache
+.vectorcode
 *~
 
 # geckodriver.log
 *.log
 docker/.env
+
+# vscode dev container settings
+compose-dev.yaml

.pre-commit-config.yaml

@@ -0,0 +1,40 @@
+repos:
+  # Common hooks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+    - id: check-added-large-files
+    - id: check-merge-conflict
+      args: ["--assume-in-merge"]
+    - id: check-yaml
+    - id: detect-private-key
+    - id: end-of-file-fixer
+    - id: trailing-whitespace
+      args: ["--markdown-linebreak-ext=md"]
+
+  # Black - Python formatter
+  - repo: https://github.com/psf/black
+    rev: 25.1.0
+    hooks:
+    - id: black
+      exclude: (basicswap/contrib|basicswap/interface/contrib)/
+
+  # Flake8 - Lint Python
+  - repo: https://github.com/pycqa/flake8
+    rev: 7.3.0
+    hooks:
+    - id: flake8
+      args: ["--ignore=E203,E501,W503", "--exclude=basicswap/contrib,basicswap/interface/contrib,.eggs,.tox,bin/install_certifi.py"]
+
+  # ESLint - Lint Javascript and fix issues where possible
+  - repo: https://github.com/pre-commit/mirrors-eslint
+    rev: v9.30.1
+    hooks:
+    - id: eslint
+      #args: ["--fix"]
+
+  # djLint - Lint HTML
+  #- repo: https://github.com/djlint/djlint
+  #  rev: v1.36.4
+  #  hooks:
+  #  - id: djlint

Dockerfile

@@ -6,7 +6,7 @@ ENV LANG=C.UTF-8 \
 
 RUN apt-get update; \
     apt-get install -y --no-install-recommends \
-        python3-pip libpython3-dev gnupg pkg-config gcc libc-dev gosu tzdata;
+        python3-pip libpython3-dev gnupg pkg-config gcc libc-dev gosu tzdata cmake ninja-build;
 
 # Install requirements first so as to skip in subsequent rebuilds
 COPY ./requirements.txt requirements.txt

README.md

@@ -64,6 +64,12 @@ BasicSwap is compatible with the following digital assets.
    <td>XMR
    </td>
   </tr>
+  <tr>
+   <td>Bitcoin Cash
+   </td>
+   <td>BCH
+   </td>
+  </tr>
   <tr>
    <td>Dash
    </td>
@@ -106,6 +112,18 @@ BasicSwap is compatible with the following digital assets.
    <td>PART
    </td>
   </tr>
+  <tr>
+   <td>Dogecoin
+   </td>
+   <td>DOGE
+   </td>
+  </tr>
+  <tr>
+   <td>Namecoin
+   </td>
+   <td>NMC
+   </td>
+  </tr>
 </table>
 
 If you’d like to add a cryptocurrency to BasicSwap, refer to how other cryptocurrencies have been integrated to the DEX by following [this link](https://academy.particl.io/en/latest/basicswap-guides/basicswapguides_apply.html).

basicswap/__init__.py

@@ -1,3 +1,3 @@
 name = "basicswap"
 
-__version__ = "0.14.1"
+__version__ = "0.15.0"

basicswap/base.py

@@ -1,29 +1,38 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2019-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-import os
-import time
-import shlex
-import socks
-import random
-import socket
-import urllib
 import logging
-import threading
-import traceback
+import os
+import random
+import shlex
+import socket
+import socks
 import subprocess
+import sys
+import threading
+import time
+import traceback
+import urllib
 
 from sockshandler import SocksiPyHandler
 
+from .db import (
+    DBMethods,
+)
 from .rpc import (
     callrpc,
 )
 from .util import (
     TemporaryError,
 )
+from .util.logging import (
+    BSXLogger,
+    LogCategories as LC,
+)
 from .chainparams import (
     Coins,
     chainparams,
@@ -34,10 +43,10 @@ def getaddrinfo_tor(*args):
     return [(socket.AF_INET, socket.SOCK_STREAM, 6, "", (args[0], args[1]))]
 
 
-class BaseApp:
-    def __init__(self, fp, data_dir, settings, chain, log_name='BasicSwap'):
+class BaseApp(DBMethods):
+    def __init__(self, data_dir, settings, chain, log_name="BasicSwap", **kwargs):
+        self.fp = None
         self.log_name = log_name
-        self.fp = fp
         self.fail_code = 0
         self.mock_time_offset = 0
 
@@ -47,42 +56,93 @@ class BaseApp:
         self.coin_clients = {}
         self.coin_interfaces = {}
         self.mxDB = threading.Lock()
-        self.debug = self.settings.get('debug', False)
+        self.debug = self.settings.get("debug", False)
         self.delay_event = threading.Event()
         self.chainstate_delay_event = threading.Event()
 
         self._network = None
         self.prepareLogging()
-        self.log.info('Network: {}'.format(self.chain))
+        self.log.info(f"Network: {self.chain}")
 
-        self.use_tor_proxy = self.settings.get('use_tor', False)
-        self.tor_proxy_host = self.settings.get('tor_proxy_host', '127.0.0.1')
-        self.tor_proxy_port = self.settings.get('tor_proxy_port', 9050)
-        self.tor_control_password = self.settings.get('tor_control_password', None)
-        self.tor_control_port = self.settings.get('tor_control_port', 9051)
+        self.use_tor_proxy = self.settings.get("use_tor", False)
+        self.tor_proxy_host = self.settings.get("tor_proxy_host", "127.0.0.1")
+        self.tor_proxy_port = self.settings.get("tor_proxy_port", 9050)
+        self.tor_control_password = self.settings.get("tor_control_password", None)
+        self.tor_control_port = self.settings.get("tor_control_port", 9051)
         self.default_socket = socket.socket
         self.default_socket_timeout = socket.getdefaulttimeout()
         self.default_socket_getaddrinfo = socket.getaddrinfo
+        self._force_db_upgrade = False
+
+        self._enabled_log_categories = set()
+        for category in self.settings.get("enabled_log_categories", []):
+            category = category.lower()
+            if category == "net":
+                self._enabled_log_categories.add(LC.NET)
+            else:
+                self.log.warning(
+                    f'Unknown entry "{category}" in "enabled_log_categories"'
+                )
+
+        if len(self._enabled_log_categories) > 0:
+            self.log.info(
+                "Enabled logging categories: {}".format(
+                    ",".join(sorted([c.name for c in self._enabled_log_categories]))
+                )
+            )
+
+        super().__init__(
+            data_dir=data_dir,
+            settings=settings,
+            chain=chain,
+            log_name=log_name,
+            **kwargs,
+        )
+
+    def __del__(self):
+        if self.fp:
+            self.fp.close()
 
     def stopRunning(self, with_code=0):
         self.fail_code = with_code
-        with self.mxDB:
+
+        # Wait for lock to shutdown gracefully.
+        if self.mxDB.acquire(timeout=5):
+            self.chainstate_delay_event.set()
+            self.delay_event.set()
+            self.mxDB.release()
+        else:
+            # Waiting for lock timed out, stop anyway
             self.chainstate_delay_event.set()
             self.delay_event.set()
 
+    def openLogFile(self):
+        self.fp = open(os.path.join(self.data_dir, "basicswap.log"), "a")
+
     def prepareLogging(self):
+        logging.setLoggerClass(BSXLogger)
         self.log = logging.getLogger(self.log_name)
         self.log.propagate = False
 
+        self.openLogFile()
+
         # Remove any existing handlers
         self.log.handlers = []
 
-        formatter = logging.Formatter('%(asctime)s %(levelname)s : %(message)s', '%Y-%m-%d %H:%M:%S')
-        stream_stdout = logging.StreamHandler()
-        if self.log_name != 'BasicSwap':
-            stream_stdout.setFormatter(logging.Formatter('%(asctime)s %(name)s %(levelname)s : %(message)s', '%Y-%m-%d %H:%M:%S'))
+        formatter = logging.Formatter(
+            "%(asctime)s %(levelname)s : %(message)s", "%Y-%m-%d %H:%M:%S"
+        )
+        stream_stdout = logging.StreamHandler(sys.stdout)
+        if self.log_name != "BasicSwap":
+            stream_stdout.setFormatter(
+                logging.Formatter(
+                    "%(asctime)s %(name)s %(levelname)s : %(message)s",
+                    "%Y-%m-%d %H:%M:%S",
+                )
+            )
         else:
             stream_stdout.setFormatter(formatter)
+        self.log_formatter = formatter
         stream_fp = logging.StreamHandler(self.fp)
         stream_fp.setFormatter(formatter)
 
@@ -92,67 +152,91 @@ class BaseApp:
 
     def getChainClientSettings(self, coin):
         try:
-            return self.settings['chainclients'][chainparams[coin]['name']]
+            return self.settings["chainclients"][chainparams[coin]["name"]]
         except Exception:
             return {}
 
     def setDaemonPID(self, name, pid) -> None:
         if isinstance(name, Coins):
-            self.coin_clients[name]['pid'] = pid
+            self.coin_clients[name]["pid"] = pid
             return
         for c, v in self.coin_clients.items():
-            if v['name'] == name:
-                v['pid'] = pid
+            if v["name"] == name:
+                v["pid"] = pid
 
     def getChainDatadirPath(self, coin) -> str:
-        datadir = self.coin_clients[coin]['datadir']
-        testnet_name = '' if self.chain == 'mainnet' else chainparams[coin][self.chain].get('name', self.chain)
+        datadir = self.coin_clients[coin]["datadir"]
+        testnet_name = (
+            ""
+            if self.chain == "mainnet"
+            else chainparams[coin][self.chain].get("name", self.chain)
+        )
         return os.path.join(datadir, testnet_name)
 
     def getCoinIdFromName(self, coin_name: str):
         for c, params in chainparams.items():
-            if coin_name.lower() == params['name'].lower():
+            if coin_name.lower() == params["name"].lower():
                 return c
-        raise ValueError('Unknown coin: {}'.format(coin_name))
+        raise ValueError(f"Unknown coin: {coin_name}")
 
     def callrpc(self, method, params=[], wallet=None):
         cc = self.coin_clients[Coins.PART]
-        return callrpc(cc['rpcport'], cc['rpcauth'], method, params, wallet, cc['rpchost'])
+        return callrpc(
+            cc["rpcport"], cc["rpcauth"], method, params, wallet, cc["rpchost"]
+        )
 
     def callcoinrpc(self, coin, method, params=[], wallet=None):
         cc = self.coin_clients[coin]
-        return callrpc(cc['rpcport'], cc['rpcauth'], method, params, wallet, cc['rpchost'])
+        return callrpc(
+            cc["rpcport"], cc["rpcauth"], method, params, wallet, cc["rpchost"]
+        )
 
     def callcoincli(self, coin_type, params, wallet=None, timeout=None):
-        bindir = self.coin_clients[coin_type]['bindir']
-        datadir = self.coin_clients[coin_type]['datadir']
-        command_cli = os.path.join(bindir, chainparams[coin_type]['name'] + '-cli' + ('.exe' if os.name == 'nt' else ''))
-        args = [command_cli, ]
-        if self.chain != 'mainnet':
-            args.append('-' + self.chain)
-        args.append('-datadir=' + datadir)
+        bindir = self.coin_clients[coin_type]["bindir"]
+        datadir = self.coin_clients[coin_type]["datadir"]
+        cli_bin: str = chainparams[coin_type].get(
+            "cli_binname", chainparams[coin_type]["name"] + "-cli"
+        )
+        command_cli = os.path.join(
+            bindir, cli_bin + (".exe" if os.name == "nt" else "")
+        )
+        args = [
+            command_cli,
+        ]
+        if self.chain != "mainnet":
+            args.append("-" + self.chain)
+        args.append("-datadir=" + datadir)
         args += shlex.split(params)
-        p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        p = subprocess.Popen(
+            args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE
+        )
         out = p.communicate(timeout=timeout)
         if len(out[1]) > 0:
-            raise ValueError('CLI error ' + str(out[1]))
-        return out[0].decode('utf-8').strip()
+            raise ValueError("CLI error " + str(out[1]))
+        return out[0].decode("utf-8").strip()
 
     def is_transient_error(self, ex) -> bool:
         if isinstance(ex, TemporaryError):
             return True
         str_error = str(ex).lower()
-        return 'read timed out' in str_error or 'no connection to daemon' in str_error
+        return "read timed out" in str_error or "no connection to daemon" in str_error
 
     def setConnectionParameters(self, timeout=120):
         opener = urllib.request.build_opener()
-        opener.addheaders = [('User-agent', 'Mozilla/5.0')]
+        opener.addheaders = [("User-agent", "Mozilla/5.0")]
         urllib.request.install_opener(opener)
 
         if self.use_tor_proxy:
-            socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, self.tor_proxy_host, self.tor_proxy_port, rdns=True)
+            socks.setdefaultproxy(
+                socks.PROXY_TYPE_SOCKS5,
+                self.tor_proxy_host,
+                self.tor_proxy_port,
+                rdns=True,
+            )
             socket.socket = socks.socksocket
-            socket.getaddrinfo = getaddrinfo_tor  # Without this accessing .onion links would fail
+            socket.getaddrinfo = (
+                getaddrinfo_tor  # Without this accessing .onion links would fail
+            )
 
         socket.setdefaulttimeout(timeout)
 
@@ -165,21 +249,34 @@ class BaseApp:
     def readURL(self, url: str, timeout: int = 120, headers={}) -> bytes:
         open_handler = None
         if self.use_tor_proxy:
-            open_handler = SocksiPyHandler(socks.PROXY_TYPE_SOCKS5, self.tor_proxy_host, self.tor_proxy_port)
-        opener = urllib.request.build_opener(open_handler) if self.use_tor_proxy else urllib.request.build_opener()
+            open_handler = SocksiPyHandler(
+                socks.PROXY_TYPE_SOCKS5, self.tor_proxy_host, self.tor_proxy_port
+            )
+        opener = (
+            urllib.request.build_opener(open_handler)
+            if self.use_tor_proxy
+            else urllib.request.build_opener()
+        )
         if headers is None:
-            opener.addheaders = [('User-agent', 'Mozilla/5.0')]
+            opener.addheaders = [("User-agent", "Mozilla/5.0")]
         request = urllib.request.Request(url, headers=headers)
         return opener.open(request, timeout=timeout).read()
 
-    def logException(self, message) -> None:
+    def logException(self, message: str) -> None:
         self.log.error(message)
         if self.debug:
             self.log.error(traceback.format_exc())
 
+    def logD(self, log_category: int, message: str) -> None:
+        if log_category not in self._enabled_log_categories:
+            return
+        self.log.debug("(" + LC(log_category).name + ") " + message)
+
     def torControl(self, query):
         try:
-            command = 'AUTHENTICATE "{}"\r\n{}\r\nQUIT\r\n'.format(self.tor_control_password, query).encode('utf-8')
+            command = 'AUTHENTICATE "{}"\r\n{}\r\nQUIT\r\n'.format(
+                self.tor_control_password, query
+            ).encode("utf-8")
             c = socket.create_connection((self.tor_proxy_host, self.tor_control_port))
             c.send(command)
             response = bytearray()
@@ -191,23 +288,23 @@ class BaseApp:
             c.close()
             return response
         except Exception as e:
-            self.log.error(f'torControl {e}')
+            self.log.error(f"torControl {e}")
             return
 
     def getTime(self) -> int:
         return int(time.time()) + self.mock_time_offset
 
     def setMockTimeOffset(self, new_offset: int) -> None:
-        self.log.warning(f'Setting mocktime to {new_offset}')
+        self.log.warning(f"Setting mocktime to {new_offset}")
         self.mock_time_offset = new_offset
 
     def get_int_setting(self, name: str, default_v: int, min_v: int, max_v) -> int:
         value: int = self.settings.get(name, default_v)
         if value < min_v:
-            self.log.warning(f'Setting {name} to {min_v}')
+            self.log.warning(f"Setting {name} to {min_v}")
             value = min_v
         if value > max_v:
-            self.log.warning(f'Setting {name} to {max_v}')
+            self.log.warning(f"Setting {name} to {max_v}")
             value = max_v
         return value
 

basicswap/basicswap_util.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2021-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -8,12 +9,14 @@
 import struct
 import hashlib
 from enum import IntEnum, auto
+from html import escape as html_escape
 from .util.address import (
     encodeAddress,
     decodeAddress,
 )
 from .chainparams import (
     chainparams,
+    Fiat,
 )
 
 
@@ -33,6 +36,16 @@ class KeyTypes(IntEnum):
     KAF = 6
 
 
+class MessageNetworks(IntEnum):
+    SMSG = auto()
+    SIMPLEX = auto()
+
+
+class MessageNetworkLinkTypes(IntEnum):
+    RECEIVED_ON = auto()
+    SENT_ON = auto()
+
+
 class MessageTypes(IntEnum):
     OFFER = auto()
     BID = auto()
@@ -50,12 +63,18 @@ class MessageTypes(IntEnum):
     ADS_BID_LF = auto()
     ADS_BID_ACCEPT_FL = auto()
 
+    CONNECT_REQ = auto()
+    PORTAL_OFFER = auto()
+    PORTAL_SEND = auto()
+
 
 class AddressTypes(IntEnum):
     OFFER = auto()
     BID = auto()
     RECV_OFFER = auto()
     SEND_OFFER = auto()
+    PORTAL_LOCAL = auto()
+    PORTAL = auto()
 
 
 class SwapTypes(IntEnum):
@@ -64,6 +83,7 @@ class SwapTypes(IntEnum):
     SELLER_FIRST_2MSG = auto()
     BUYER_FIRST_2MSG = auto()
     XMR_SWAP = auto()
+    XMR_BCH_SWAP = auto()
 
 
 class OfferStates(IntEnum):
@@ -105,6 +125,9 @@ class BidStates(IntEnum):
     BID_REQUEST_SENT = 29
     BID_REQUEST_ACCEPTED = 30
     BID_EXPIRED = 31
+    BID_AACCEPT_DELAY = 32
+    BID_AACCEPT_FAIL = 33
+    CONNECT_REQ_SENT = 34
 
 
 class TxStates(IntEnum):
@@ -136,6 +159,8 @@ class TxTypes(IntEnum):
 
     ITX_PRE_FUNDED = auto()
 
+    BCH_MERCY = auto()
+
 
 class ActionTypes(IntEnum):
     ACCEPT_BID = auto()
@@ -183,6 +208,10 @@ class EventLogTypes(IntEnum):
     PTX_REDEEM_PUBLISHED = auto()
     PTX_REFUND_PUBLISHED = auto()
     LOCK_TX_B_IN_MEMPOOL = auto()
+    BCH_MERCY_TX_PUBLISHED = auto()
+    BCH_MERCY_TX_FOUND = auto()
+    LOCK_TX_A_IN_MEMPOOL = auto()
+    LOCK_TX_A_CONFLICTS = auto()
 
 
 class XmrSplitMsgTypes(IntEnum):
@@ -194,6 +223,7 @@ class DebugTypes(IntEnum):
     NONE = 0
     BID_STOP_AFTER_COIN_A_LOCK = auto()
     BID_DONT_SPEND_COIN_A_LOCK_REFUND = auto()
+    BID_DONT_SPEND_COIN_A_LOCK_REFUND2 = auto()  # continues
     CREATE_INVALID_COIN_B_LOCK = auto()
     BUYER_STOP_AFTER_ITX = auto()
     MAKE_INVALID_PTX = auto()
@@ -204,6 +234,10 @@ class DebugTypes(IntEnum):
     DUPLICATE_ACTIONS = auto()
     DONT_CONFIRM_PTX = auto()
     OFFER_LOCK_2_VALUE_INC = auto()
+    BID_STOP_AFTER_COIN_B_LOCK = auto()
+    BID_DONT_SPEND_COIN_B_LOCK = auto()
+    WAIT_FOR_COIN_B_LOCK_BEFORE_REFUND = auto()
+    BID_DONT_SPEND_COIN_A_LOCK = auto()
 
 
 class NotificationTypes(IntEnum):
@@ -211,6 +245,12 @@ class NotificationTypes(IntEnum):
     OFFER_RECEIVED = auto()
     BID_RECEIVED = auto()
     BID_ACCEPTED = auto()
+    SWAP_COMPLETED = auto()
+    UPDATE_AVAILABLE = auto()
+
+
+class ConnectionRequestTypes(IntEnum):
+    BID = 1
 
 
 class AutomationOverrideOptions(IntEnum):
@@ -221,12 +261,12 @@ class AutomationOverrideOptions(IntEnum):
 
 def strAutomationOverrideOption(option):
     if option == AutomationOverrideOptions.DEFAULT:
-        return 'Default'
+        return "Default"
     if option == AutomationOverrideOptions.ALWAYS_ACCEPT:
-        return 'Always Accept'
+        return "Always Accept"
     if option == AutomationOverrideOptions.NEVER_ACCEPT:
-        return 'Never Accept'
-    return 'Unknown'
+        return "Never Accept"
+    return "Unknown"
 
 
 class VisibilityOverrideOptions(IntEnum):
@@ -237,244 +277,262 @@ class VisibilityOverrideOptions(IntEnum):
 
 def strVisibilityOverrideOption(option):
     if option == VisibilityOverrideOptions.DEFAULT:
-        return 'Default'
+        return "Default"
     if option == VisibilityOverrideOptions.HIDE:
-        return 'Hide'
+        return "Hide"
     if option == VisibilityOverrideOptions.BLOCK:
-        return 'Block'
-    return 'Unknown'
+        return "Block"
+    return "Unknown"
 
 
 def strOfferState(state):
     if state == OfferStates.OFFER_SENT:
-        return 'Sent'
+        return "Sent"
     if state == OfferStates.OFFER_RECEIVED:
-        return 'Received'
+        return "Received"
     if state == OfferStates.OFFER_ABANDONED:
-        return 'Abandoned'
+        return "Abandoned"
     if state == OfferStates.OFFER_EXPIRED:
-        return 'Expired'
-    return 'Unknown'
+        return "Expired"
+    return "Unknown"
 
 
 def strBidState(state):
     if state == BidStates.BID_SENT:
-        return 'Sent'
+        return "Sent"
     if state == BidStates.BID_RECEIVING:
-        return 'Receiving'
+        return "Receiving"
     if state == BidStates.BID_RECEIVING_ACC:
-        return 'Receiving accept'
+        return "Receiving accept"
     if state == BidStates.BID_RECEIVED:
-        return 'Received'
+        return "Received"
     if state == BidStates.BID_ACCEPTED:
-        return 'Accepted'
+        return "Accepted"
     if state == BidStates.SWAP_INITIATED:
-        return 'Initiated'
+        return "Initiated"
     if state == BidStates.SWAP_PARTICIPATING:
-        return 'Participating'
+        return "Participating"
     if state == BidStates.SWAP_COMPLETED:
-        return 'Completed'
+        return "Completed"
     if state == BidStates.SWAP_TIMEDOUT:
-        return 'Timed-out'
+        return "Timed-out"
     if state == BidStates.BID_ABANDONED:
-        return 'Abandoned'
+        return "Abandoned"
     if state == BidStates.BID_STALLED_FOR_TEST:
-        return 'Stalled (debug)'
+        return "Stalled (debug)"
     if state == BidStates.BID_ERROR:
-        return 'Error'
+        return "Error"
     if state == BidStates.BID_REJECTED:
-        return 'Rejected'
+        return "Rejected"
     if state == BidStates.XMR_SWAP_SCRIPT_COIN_LOCKED:
-        return 'Script coin locked'
+        return "Script coin locked"
     if state == BidStates.XMR_SWAP_HAVE_SCRIPT_COIN_SPEND_TX:
-        return 'Script coin spend tx valid'
+        return "Script coin spend tx valid"
     if state == BidStates.XMR_SWAP_NOSCRIPT_COIN_LOCKED:
-        return 'Scriptless coin locked'
+        return "Scriptless coin locked"
     if state == BidStates.XMR_SWAP_LOCK_RELEASED:
-        return 'Script coin lock released'
+        return "Script coin lock released"
     if state == BidStates.XMR_SWAP_SCRIPT_TX_REDEEMED:
-        return 'Script tx redeemed'
+        return "Script tx redeemed"
     if state == BidStates.XMR_SWAP_SCRIPT_TX_PREREFUND:
-        return 'Script pre-refund tx in chain'
+        return "Script pre-refund tx in chain"
     if state == BidStates.XMR_SWAP_NOSCRIPT_TX_REDEEMED:
-        return 'Scriptless tx redeemed'
+        return "Scriptless tx redeemed"
     if state == BidStates.XMR_SWAP_NOSCRIPT_TX_RECOVERED:
-        return 'Scriptless tx recovered'
+        return "Scriptless tx recovered"
     if state == BidStates.XMR_SWAP_FAILED_REFUNDED:
-        return 'Failed, refunded'
+        return "Failed, refunded"
     if state == BidStates.XMR_SWAP_FAILED_SWIPED:
-        return 'Failed, swiped'
+        return "Failed, swiped"
     if state == BidStates.XMR_SWAP_FAILED:
-        return 'Failed'
+        return "Failed"
     if state == BidStates.SWAP_DELAYING:
-        return 'Delaying'
+        return "Delaying"
     if state == BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_TX_SIGS:
-        return 'Exchanged script lock tx sigs msg'
+        return "Exchanged script lock tx sigs msg"
     if state == BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_SPEND_TX:
-        return 'Exchanged script lock spend tx msg'
+        return "Exchanged script lock spend tx msg"
     if state == BidStates.BID_REQUEST_SENT:
-        return 'Request sent'
+        return "Request sent"
     if state == BidStates.BID_REQUEST_ACCEPTED:
-        return 'Request accepted'
+        return "Request accepted"
     if state == BidStates.BID_STATE_UNKNOWN:
-        return 'Unknown bid state'
+        return "Unknown bid state"
     if state == BidStates.BID_EXPIRED:
-        return 'Expired'
-    return 'Unknown' + ' ' + str(state)
+        return "Expired"
+    if state == BidStates.BID_AACCEPT_DELAY:
+        return "Auto accept delay"
+    if state == BidStates.BID_AACCEPT_FAIL:
+        return "Auto accept failed"
+    if state == BidStates.CONNECT_REQ_SENT:
+        return "Connect request sent"
+    return "Unknown" + " " + str(state)
 
 
 def strTxState(state):
     if state == TxStates.TX_NONE:
-        return 'None'
+        return "None"
     if state == TxStates.TX_SENT:
-        return 'Sent'
+        return "Sent"
     if state == TxStates.TX_CONFIRMED:
-        return 'Confirmed'
+        return "Confirmed"
     if state == TxStates.TX_REDEEMED:
-        return 'Redeemed'
+        return "Redeemed"
     if state == TxStates.TX_REFUNDED:
-        return 'Refunded'
+        return "Refunded"
     if state == TxStates.TX_IN_MEMPOOL:
-        return 'In Mempool'
+        return "In Mempool"
     if state == TxStates.TX_IN_CHAIN:
-        return 'In Chain'
-    return 'Unknown'
+        return "In Chain"
+    return "Unknown"
 
 
 def strTxType(tx_type):
     if tx_type == TxTypes.XMR_SWAP_A_LOCK:
-        return 'Chain A Lock Tx'
+        return "Chain A Lock Tx"
     if tx_type == TxTypes.XMR_SWAP_A_LOCK_SPEND:
-        return 'Chain A Lock Spend Tx'
+        return "Chain A Lock Spend Tx"
     if tx_type == TxTypes.XMR_SWAP_A_LOCK_REFUND:
-        return 'Chain A Lock Refund Tx'
+        return "Chain A Lock Refund Tx"
     if tx_type == TxTypes.XMR_SWAP_A_LOCK_REFUND_SPEND:
-        return 'Chain A Lock Refund Spend Tx'
+        return "Chain A Lock Refund Spend Tx"
     if tx_type == TxTypes.XMR_SWAP_A_LOCK_REFUND_SWIPE:
-        return 'Chain A Lock Refund Swipe Tx'
+        return "Chain A Lock Refund Swipe Tx"
     if tx_type == TxTypes.XMR_SWAP_B_LOCK:
-        return 'Chain B Lock Tx'
+        return "Chain B Lock Tx"
     if tx_type == TxTypes.ITX_PRE_FUNDED:
-        return 'Funded mock initiate tx'
-    return 'Unknown'
+        return "Funded mock initiate Tx"
+    if tx_type == TxTypes.BCH_MERCY:
+        return "BCH Mercy Tx"
+    return "Unknown"
 
 
 def strAddressType(addr_type):
-    if addr_type == AddressTypes.OFFER:
-        return 'Offer'
-    if addr_type == AddressTypes.BID:
-        return 'Bid'
-    if addr_type == AddressTypes.RECV_OFFER:
-        return 'Offer recv'
-    if addr_type == AddressTypes.SEND_OFFER:
-        return 'Offer send'
-    return 'Unknown'
+    return {
+        AddressTypes.OFFER: "Offer",
+        AddressTypes.BID: "Bid",
+        AddressTypes.RECV_OFFER: "Offer recv",
+        AddressTypes.SEND_OFFER: "Offer send",
+        AddressTypes.PORTAL_LOCAL: "Portal (local)",
+        AddressTypes.PORTAL: "Portal",
+    }.get(addr_type, "Unknown")
 
 
 def getLockName(lock_type):
     if lock_type == TxLockTypes.SEQUENCE_LOCK_BLOCKS:
-        return 'Sequence lock, blocks'
+        return "Sequence lock, blocks"
     if lock_type == TxLockTypes.SEQUENCE_LOCK_TIME:
-        return 'Sequence lock, time'
+        return "Sequence lock, time"
     if lock_type == TxLockTypes.ABS_LOCK_BLOCKS:
-        return 'blocks'
+        return "blocks"
     if lock_type == TxLockTypes.ABS_LOCK_TIME:
-        return 'time'
+        return "time"
 
 
 def describeEventEntry(event_type, event_msg):
     if event_type == EventLogTypes.FAILED_TX_B_LOCK_PUBLISH:
-        return 'Failed to publish lock tx B'
+        return "Failed to publish lock tx B"
     if event_type == EventLogTypes.LOCK_TX_A_PUBLISHED:
-        return 'Lock tx A published'
+        return "Lock tx A published"
     if event_type == EventLogTypes.LOCK_TX_B_PUBLISHED:
-        return 'Lock tx B published'
+        return "Lock tx B published"
     if event_type == EventLogTypes.FAILED_TX_B_SPEND:
-        return 'Failed to publish lock tx B spend: ' + event_msg
+        return "Failed to publish lock tx B spend: " + event_msg
+    if event_type == EventLogTypes.LOCK_TX_A_IN_MEMPOOL:
+        return "Lock tx A seen in mempool"
+    if event_type == EventLogTypes.LOCK_TX_A_CONFLICTS:
+        return "Lock tx A conflicting txn/s"
     if event_type == EventLogTypes.LOCK_TX_A_SEEN:
-        return 'Lock tx A seen in chain'
+        return "Lock tx A seen in chain"
     if event_type == EventLogTypes.LOCK_TX_A_CONFIRMED:
-        return 'Lock tx A confirmed in chain'
+        return "Lock tx A confirmed in chain"
     if event_type == EventLogTypes.LOCK_TX_B_SEEN:
-        return 'Lock tx B seen in chain'
+        return "Lock tx B seen in chain"
     if event_type == EventLogTypes.LOCK_TX_B_CONFIRMED:
-        return 'Lock tx B confirmed in chain'
+        return "Lock tx B confirmed in chain"
     if event_type == EventLogTypes.LOCK_TX_B_IN_MEMPOOL:
-        return 'Lock tx B seen in mempool'
+        return "Lock tx B seen in mempool"
     if event_type == EventLogTypes.DEBUG_TWEAK_APPLIED:
-        return 'Debug tweak applied ' + event_msg
+        return "Debug tweak applied " + event_msg
     if event_type == EventLogTypes.FAILED_TX_B_REFUND:
-        return 'Failed to publish lock tx B refund'
+        return "Failed to publish lock tx B refund"
     if event_type == EventLogTypes.LOCK_TX_B_INVALID:
-        return 'Detected invalid lock Tx B'
+        return "Detected invalid lock Tx B"
     if event_type == EventLogTypes.LOCK_TX_A_REFUND_TX_PUBLISHED:
-        return 'Lock tx A refund tx published'
+        return "Lock tx A refund tx published"
     if event_type == EventLogTypes.LOCK_TX_A_REFUND_SPEND_TX_PUBLISHED:
-        return 'Lock tx A refund spend tx published'
+        return "Lock tx A refund spend tx published"
     if event_type == EventLogTypes.LOCK_TX_A_REFUND_SWIPE_TX_PUBLISHED:
-        return 'Lock tx A refund swipe tx published'
+        return "Lock tx A refund swipe tx published"
     if event_type == EventLogTypes.LOCK_TX_B_REFUND_TX_PUBLISHED:
-        return 'Lock tx B refund tx published'
+        return "Lock tx B refund tx published"
     if event_type == EventLogTypes.LOCK_TX_A_SPEND_TX_PUBLISHED:
-        return 'Lock tx A spend tx published'
+        return "Lock tx A spend tx published"
     if event_type == EventLogTypes.LOCK_TX_B_SPEND_TX_PUBLISHED:
-        return 'Lock tx B spend tx published'
+        return "Lock tx B spend tx published"
     if event_type == EventLogTypes.LOCK_TX_A_REFUND_TX_SEEN:
-        return 'Lock tx A refund tx seen in chain'
+        return "Lock tx A refund tx seen in chain"
     if event_type == EventLogTypes.LOCK_TX_A_REFUND_SPEND_TX_SEEN:
-        return 'Lock tx A refund spend tx seen in chain'
+        return "Lock tx A refund spend tx seen in chain"
     if event_type == EventLogTypes.SYSTEM_WARNING:
-        return 'Warning: ' + event_msg
+        return "Warning: " + event_msg
     if event_type == EventLogTypes.ERROR:
-        return 'Error: ' + event_msg
+        return "Error: " + event_msg
     if event_type == EventLogTypes.AUTOMATION_CONSTRAINT:
-        return 'Failed auto accepting'
+        return "Failed auto accepting"
     if event_type == EventLogTypes.AUTOMATION_ACCEPTING_BID:
-        return 'Auto accepting'
+        return "Auto accepting"
     if event_type == EventLogTypes.ITX_PUBLISHED:
-        return 'Initiate tx published'
+        return "Initiate tx published"
     if event_type == EventLogTypes.ITX_REDEEM_PUBLISHED:
-        return 'Initiate tx redeem tx published'
+        return "Initiate tx redeem tx published"
     if event_type == EventLogTypes.ITX_REFUND_PUBLISHED:
-        return 'Initiate tx refund tx published'
+        return "Initiate tx refund tx published"
     if event_type == EventLogTypes.PTX_PUBLISHED:
-        return 'Participate tx published'
+        return "Participate tx published"
     if event_type == EventLogTypes.PTX_REDEEM_PUBLISHED:
-        return 'Participate tx redeem tx published'
+        return "Participate tx redeem tx published"
     if event_type == EventLogTypes.PTX_REFUND_PUBLISHED:
-        return 'Participate tx refund tx published'
+        return "Participate tx refund tx published"
+    if event_type == EventLogTypes.BCH_MERCY_TX_FOUND:
+        return "BCH mercy tx found"
+    if event_type == EventLogTypes.BCH_MERCY_TX_PUBLISHED:
+        return "Lock tx B mercy tx published"
 
 
 def getVoutByAddress(txjs, p2sh):
-    for o in txjs['vout']:
+    for o in txjs["vout"]:
         try:
-            if 'address' in o['scriptPubKey'] and o['scriptPubKey']['address'] == p2sh:
-                return o['n']
-            if p2sh in o['scriptPubKey']['addresses']:
-                return o['n']
+            if "address" in o["scriptPubKey"] and o["scriptPubKey"]["address"] == p2sh:
+                return o["n"]
+            if p2sh in o["scriptPubKey"]["addresses"]:
+                return o["n"]
         except Exception:
             pass
-    raise ValueError('Address output not found in txn')
+    raise ValueError("Address output not found in txn")
 
 
 def getVoutByScriptPubKey(txjs, scriptPubKey_hex: str) -> int:
-    for o in txjs['vout']:
+    for o in txjs["vout"]:
         try:
-            if scriptPubKey_hex == o['scriptPubKey']['hex']:
-                return o['n']
+            if scriptPubKey_hex == o["scriptPubKey"]["hex"]:
+                return o["n"]
         except Exception:
             pass
-    raise ValueError('scriptPubKey output not found in txn')
+    raise ValueError("scriptPubKey output not found in txn")
 
 
-def replaceAddrPrefix(addr, coin_type, chain_name, addr_type='pubkey_address'):
-    return encodeAddress(bytes((chainparams[coin_type][chain_name][addr_type],)) + decodeAddress(addr)[1:])
+def replaceAddrPrefix(addr, coin_type, chain_name, addr_type="pubkey_address"):
+    return encodeAddress(
+        bytes((chainparams[coin_type][chain_name][addr_type],))
+        + decodeAddress(addr)[1:]
+    )
 
 
 def getOfferProofOfFundsHash(offer_msg, offer_addr):
     # TODO: Hash must not include proof_of_funds sig if it exists in offer_msg
     h = hashlib.sha256()
-    h.update(offer_addr.encode('utf-8'))
+    h.update(offer_addr.encode("utf-8"))
     offer_bytes = offer_msg.to_bytes()
     h.update(offer_bytes)
     return h.digest()
@@ -484,33 +542,93 @@ def getLastBidState(packed_states):
     num_states = len(packed_states) // 12
     if num_states < 2:
         return BidStates.BID_STATE_UNKNOWN
-    return struct.unpack_from('<i', packed_states[(num_states - 2) * 12:])[0]
+    return struct.unpack_from("<i", packed_states[(num_states - 2) * 12 :])[0]
     try:
         num_states = len(packed_states) // 12
         if num_states < 2:
             return BidStates.BID_STATE_UNKNOWN
-        return struct.unpack_from('<i', packed_states[(num_states - 2) * 12:])[0]
+        return struct.unpack_from("<i", packed_states[(num_states - 2) * 12 :])[0]
     except Exception:
         return BidStates.BID_STATE_UNKNOWN
 
 
-def strSwapType(swap_type):
+def strSwapType(swap_type) -> str:
     if swap_type == SwapTypes.SELLER_FIRST:
-        return 'seller_first'
+        return "seller_first"
     if swap_type == SwapTypes.XMR_SWAP:
-        return 'xmr_swap'
+        return "xmr_swap"
     return None
 
 
-def strSwapDesc(swap_type):
+def strSwapDesc(swap_type) -> str:
     if swap_type == SwapTypes.SELLER_FIRST:
-        return 'Secret Hash'
+        return "Secret Hash"
     if swap_type == SwapTypes.XMR_SWAP:
-        return 'Adaptor Sig'
+        return "Adaptor Sig"
     return None
 
 
-inactive_states = [BidStates.SWAP_COMPLETED, BidStates.BID_ERROR, BidStates.BID_REJECTED, BidStates.SWAP_TIMEDOUT, BidStates.BID_ABANDONED, BidStates.BID_EXPIRED]
+def fiatTicker(fiat_ind: int) -> str:
+    try:
+        return Fiat(fiat_ind).name
+    except Exception as e:  # noqa: F841
+        raise ValueError(f"Unknown fiat ind {fiat_ind}")
+
+
+def fiatFromTicker(ticker: str) -> int:
+    ticker_uc = ticker.upper()
+    for entry in Fiat:
+        if entry.name == ticker_uc:
+            return entry
+    raise ValueError(f"Unknown fiat {ticker}")
+
+
+def get_api_key_setting(
+    settings, setting_name: str, default_value: str = "", escape: bool = False
+):
+    setting_name_enc: str = setting_name + "_enc"
+    if setting_name_enc in settings:
+        rv = bytes.fromhex(settings[setting_name_enc]).decode("utf-8")
+        return html_escape(rv) if escape else rv
+    return settings.get(setting_name, default_value)
+
+
+inactive_states = [
+    BidStates.SWAP_COMPLETED,
+    BidStates.BID_ERROR,
+    BidStates.BID_REJECTED,
+    BidStates.SWAP_TIMEDOUT,
+    BidStates.BID_ABANDONED,
+    BidStates.BID_EXPIRED,
+]
+
+
+def canAcceptBidState(state):
+    return state in (
+        BidStates.BID_RECEIVED,
+        BidStates.BID_AACCEPT_DELAY,
+        BidStates.BID_AACCEPT_FAIL,
+    )
+
+
+def canExpireBidState(state):
+    return state in (
+        BidStates.BID_SENT,
+        BidStates.BID_RECEIVING,
+        BidStates.BID_RECEIVED,
+        BidStates.BID_AACCEPT_DELAY,
+        BidStates.BID_AACCEPT_FAIL,
+        BidStates.BID_REQUEST_SENT,
+    )
+
+
+def canTimeoutBidState(state):
+    return state in (
+        BidStates.BID_ACCEPTED,
+        BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_TX_SIGS,
+        BidStates.XMR_SWAP_HAVE_SCRIPT_COIN_SPEND_TX,
+        BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_SPEND_TX,
+    )
 
 
 def isActiveBidState(state):

basicswap/chainparams.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2019-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -9,8 +10,8 @@ from .util import (
     COIN,
 )
 
-XMR_COIN = 10 ** 12
-WOW_COIN = 10 ** 11
+XMR_COIN = 10**12
+WOW_COIN = 10**11
 
 
 class Coins(IntEnum):
@@ -30,419 +31,547 @@ class Coins(IntEnum):
     NAV = 14
     LTC_MWEB = 15
     # ZANO = 16
+    BCH = 17
+    DOGE = 18
+
+
+class Fiat(IntEnum):
+    USD = -1
+    GBP = -2
+    EUR = -3
 
 
 chainparams = {
     Coins.PART: {
-        'name': 'particl',
-        'ticker': 'PART',
-        'message_magic': 'Bitcoin Signed Message:\n',
-        'blocks_target': 60 * 2,
-        'decimal_places': 8,
-        'mainnet': {
-            'rpcport': 51735,
-            'pubkey_address': 0x38,
-            'script_address': 0x3c,
-            'key_prefix': 0x6c,
-            'stealth_key_prefix': 0x14,
-            'hrp': 'pw',
-            'bip44': 44,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "particl",
+        "ticker": "PART",
+        "message_magic": "Bitcoin Signed Message:\n",
+        "blocks_target": 60 * 2,
+        "decimal_places": 8,
+        "mainnet": {
+            "rpcport": 51735,
+            "pubkey_address": 0x38,
+            "script_address": 0x3C,
+            "key_prefix": 0x6C,
+            "stealth_key_prefix": 0x14,
+            "hrp": "pw",
+            "bip44": 44,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0x696E82D1,
+            "ext_secret_key_prefix": 0x8F1DAEB8,
         },
-        'testnet': {
-            'rpcport': 51935,
-            'pubkey_address': 0x76,
-            'script_address': 0x7a,
-            'key_prefix': 0x2e,
-            'stealth_key_prefix': 0x15,
-            'hrp': 'tpw',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "testnet": {
+            "rpcport": 51935,
+            "pubkey_address": 0x76,
+            "script_address": 0x7A,
+            "key_prefix": 0x2E,
+            "stealth_key_prefix": 0x15,
+            "hrp": "tpw",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0xE1427800,
+            "ext_secret_key_prefix": 0x04889478,
+        },
+        "regtest": {
+            "rpcport": 51936,
+            "pubkey_address": 0x76,
+            "script_address": 0x7A,
+            "key_prefix": 0x2E,
+            "stealth_key_prefix": 0x15,
+            "hrp": "rtpw",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0xE1427800,
+            "ext_secret_key_prefix": 0x04889478,
         },
-        'regtest': {
-            'rpcport': 51936,
-            'pubkey_address': 0x76,
-            'script_address': 0x7a,
-            'key_prefix': 0x2e,
-            'stealth_key_prefix': 0x15,
-            'hrp': 'rtpw',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.BTC: {
-        'name': 'bitcoin',
-        'ticker': 'BTC',
-        'message_magic': 'Bitcoin Signed Message:\n',
-        'blocks_target': 60 * 10,
-        'decimal_places': 8,
-        'mainnet': {
-            'rpcport': 8332,
-            'pubkey_address': 0,
-            'script_address': 5,
-            'key_prefix': 128,
-            'hrp': 'bc',
-            'bip44': 0,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "bitcoin",
+        "ticker": "BTC",
+        "message_magic": "Bitcoin Signed Message:\n",
+        "blocks_target": 60 * 10,
+        "decimal_places": 8,
+        "mainnet": {
+            "rpcport": 8332,
+            "pubkey_address": 0,
+            "script_address": 5,
+            "key_prefix": 128,
+            "hrp": "bc",
+            "bip44": 0,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0x0488B21E,
+            "ext_secret_key_prefix": 0x0488ADE4,
         },
-        'testnet': {
-            'rpcport': 18332,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'key_prefix': 239,
-            'hrp': 'tb',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-            'name': 'testnet3',
+        "testnet": {
+            "rpcport": 18332,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "tb",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet3",
+            "ext_public_key_prefix": 0x043587CF,
+            "ext_secret_key_prefix": 0x04358394,
+        },
+        "regtest": {
+            "rpcport": 18443,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "bcrt",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0x043587CF,
+            "ext_secret_key_prefix": 0x04358394,
         },
-        'regtest': {
-            'rpcport': 18443,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'key_prefix': 239,
-            'hrp': 'bcrt',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.LTC: {
-        'name': 'litecoin',
-        'ticker': 'LTC',
-        'message_magic': 'Litecoin Signed Message:\n',
-        'blocks_target': 60 * 1,
-        'decimal_places': 8,
-        'mainnet': {
-            'rpcport': 9332,
-            'pubkey_address': 48,
-            'script_address': 5,
-            'script_address2': 50,
-            'key_prefix': 176,
-            'hrp': 'ltc',
-            'bip44': 2,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "litecoin",
+        "ticker": "LTC",
+        "message_magic": "Litecoin Signed Message:\n",
+        "blocks_target": 60 * 1,
+        "decimal_places": 8,
+        "mainnet": {
+            "rpcport": 9332,
+            "pubkey_address": 48,
+            "script_address": 5,
+            "script_address2": 50,
+            "key_prefix": 176,
+            "hrp": "ltc",
+            "bip44": 2,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 19332,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'script_address2': 58,
-            'key_prefix': 239,
-            'hrp': 'tltc',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-            'name': 'testnet4',
+        "testnet": {
+            "rpcport": 19332,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "script_address2": 58,
+            "key_prefix": 239,
+            "hrp": "tltc",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet4",
+        },
+        "regtest": {
+            "rpcport": 19443,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "script_address2": 58,
+            "key_prefix": 239,
+            "hrp": "rltc",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+    },
+    Coins.DOGE: {
+        "name": "dogecoin",
+        "ticker": "DOGE",
+        "message_magic": "Dogecoin Signed Message:\n",
+        "blocks_target": 60 * 1,
+        "decimal_places": 8,
+        "mainnet": {
+            "rpcport": 22555,
+            "pubkey_address": 30,
+            "script_address": 22,
+            "key_prefix": 158,
+            "hrp": "doge",
+            "bip44": 3,
+            "min_amount": 100000,  # TODO increase above fee
+            "max_amount": 10000000 * COIN,
+        },
+        "testnet": {
+            "rpcport": 44555,
+            "pubkey_address": 113,
+            "script_address": 196,
+            "key_prefix": 241,
+            "hrp": "tdge",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet4",
+        },
+        "regtest": {
+            "rpcport": 18332,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "rdge",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'regtest': {
-            'rpcport': 19443,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'script_address2': 58,
-            'key_prefix': 239,
-            'hrp': 'rltc',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.DCR: {
-        'name': 'decred',
-        'ticker': 'DCR',
-        'message_magic': 'Decred Signed Message:\n',
-        'blocks_target': 60 * 5,
-        'decimal_places': 8,
-        'mainnet': {
-            'rpcport': 9109,
-            'pubkey_address': 0x073f,
-            'script_address': 0x071a,
-            'key_prefix': 0x22de,
-            'bip44': 42,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "decred",
+        "ticker": "DCR",
+        "message_magic": "Decred Signed Message:\n",
+        "blocks_target": 60 * 5,
+        "decimal_places": 8,
+        "has_multiwallet": False,
+        "mainnet": {
+            "rpcport": 9109,
+            "pubkey_address": 0x073F,
+            "script_address": 0x071A,
+            "key_prefix": 0x22DE,
+            "bip44": 42,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 19109,
-            'pubkey_address': 0x0f21,
-            'script_address': 0x0efc,
-            'key_prefix': 0x230e,
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-            'name': 'testnet3',
+        "testnet": {
+            "rpcport": 19109,
+            "pubkey_address": 0x0F21,
+            "script_address": 0x0EFC,
+            "key_prefix": 0x230E,
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet3",
+        },
+        "regtest": {  # simnet
+            "rpcport": 18656,
+            "pubkey_address": 0x0E91,
+            "script_address": 0x0E6C,
+            "key_prefix": 0x2307,
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'regtest': {  # simnet
-            'rpcport': 18656,
-            'pubkey_address': 0x0e91,
-            'script_address': 0x0e6c,
-            'key_prefix': 0x2307,
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.NMC: {
-        'name': 'namecoin',
-        'ticker': 'NMC',
-        'message_magic': 'Namecoin Signed Message:\n',
-        'blocks_target': 60 * 10,
-        'decimal_places': 8,
-        'mainnet': {
-            'rpcport': 8336,
-            'pubkey_address': 52,
-            'script_address': 13,
-            'hrp': 'nc',
-            'bip44': 7,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "namecoin",
+        "ticker": "NMC",
+        "message_magic": "Namecoin Signed Message:\n",
+        "blocks_target": 60 * 10,
+        "decimal_places": 8,
+        "mainnet": {
+            "rpcport": 8336,
+            "pubkey_address": 52,
+            "script_address": 13,
+            "key_prefix": 180,
+            "hrp": "nc",
+            "bip44": 7,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0x0488B21E,  # base58Prefixes[EXT_PUBLIC_KEY]
+            "ext_secret_key_prefix": 0x0488ADE4,
         },
-        'testnet': {
-            'rpcport': 18336,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'hrp': 'tn',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-            'name': 'testnet3',
+        "testnet": {
+            "rpcport": 18336,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "tn",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet3",
+            "ext_public_key_prefix": 0x043587CF,
+            "ext_secret_key_prefix": 0x04358394,
+        },
+        "regtest": {
+            "rpcport": 18443,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "ncrt",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "ext_public_key_prefix": 0x043587CF,
+            "ext_secret_key_prefix": 0x04358394,
         },
-        'regtest': {
-            'rpcport': 18443,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'hrp': 'ncrt',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.XMR: {
-        'name': 'monero',
-        'ticker': 'XMR',
-        'client': 'xmr',
-        'decimal_places': 12,
-        'mainnet': {
-            'rpcport': 18081,
-            'walletrpcport': 18082,
-            'min_amount': 100000,
-            'max_amount': 10000 * XMR_COIN,
-            'address_prefix': 18,
+        "name": "monero",
+        "ticker": "XMR",
+        "client": "xmr",
+        "decimal_places": 12,
+        "mainnet": {
+            "rpcport": 18081,
+            "walletrpcport": 18082,
+            "min_amount": 1000000000,
+            "max_amount": 10000000 * XMR_COIN,
+            "address_prefix": 18,
         },
-        'testnet': {
-            'rpcport': 28081,
-            'walletrpcport': 28082,
-            'min_amount': 100000,
-            'max_amount': 10000 * XMR_COIN,
-            'address_prefix': 18,
+        "testnet": {
+            "rpcport": 28081,
+            "walletrpcport": 28082,
+            "min_amount": 1000000000,
+            "max_amount": 10000000 * XMR_COIN,
+            "address_prefix": 18,
+        },
+        "regtest": {
+            "rpcport": 18081,
+            "walletrpcport": 18082,
+            "min_amount": 1000000000,
+            "max_amount": 10000000 * XMR_COIN,
+            "address_prefix": 18,
         },
-        'regtest': {
-            'rpcport': 18081,
-            'walletrpcport': 18082,
-            'min_amount': 100000,
-            'max_amount': 10000 * XMR_COIN,
-            'address_prefix': 18,
-        }
     },
     Coins.WOW: {
-        'name': 'wownero',
-        'ticker': 'WOW',
-        'client': 'wow',
-        'decimal_places': 11,
-        'mainnet': {
-            'rpcport': 34568,
-            'walletrpcport': 34572,  # todo
-            'min_amount': 100000,
-            'max_amount': 10000 * WOW_COIN,
-            'address_prefix': 4146,
+        "name": "wownero",
+        "ticker": "WOW",
+        "client": "wow",
+        "decimal_places": 11,
+        "mainnet": {
+            "rpcport": 34568,
+            "walletrpcport": 34572,  # todo
+            "min_amount": 100000000,
+            "max_amount": 10000000 * WOW_COIN,
+            "address_prefix": 4146,
         },
-        'testnet': {
-            'rpcport': 44568,
-            'walletrpcport': 44572,
-            'min_amount': 100000,
-            'max_amount': 10000 * WOW_COIN,
-            'address_prefix': 4146,
+        "testnet": {
+            "rpcport": 44568,
+            "walletrpcport": 44572,
+            "min_amount": 100000000,
+            "max_amount": 10000000 * WOW_COIN,
+            "address_prefix": 4146,
+        },
+        "regtest": {
+            "rpcport": 54568,
+            "walletrpcport": 54572,
+            "min_amount": 100000000,
+            "max_amount": 10000000 * WOW_COIN,
+            "address_prefix": 4146,
         },
-        'regtest': {
-            'rpcport': 54568,
-            'walletrpcport': 54572,
-            'min_amount': 100000,
-            'max_amount': 10000 * WOW_COIN,
-            'address_prefix': 4146,
-        }
     },
     Coins.PIVX: {
-        'name': 'pivx',
-        'ticker': 'PIVX',
-        'message_magic': 'DarkNet Signed Message:\n',
-        'blocks_target': 60 * 1,
-        'decimal_places': 8,
-        'has_cltv': True,
-        'has_csv': False,
-        'has_segwit': False,
-        'use_ticker_as_name': True,
-        'mainnet': {
-            'rpcport': 51473,
-            'pubkey_address': 30,
-            'script_address': 13,
-            'key_prefix': 212,
-            'bip44': 119,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "pivx",
+        "ticker": "PIVX",
+        "display_name": "PIVX",
+        "message_magic": "DarkNet Signed Message:\n",
+        "blocks_target": 60 * 1,
+        "decimal_places": 8,
+        "has_cltv": True,
+        "has_csv": False,
+        "has_segwit": False,
+        "mainnet": {
+            "rpcport": 51473,
+            "pubkey_address": 30,
+            "script_address": 13,
+            "key_prefix": 212,
+            "bip44": 119,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 51475,
-            'pubkey_address': 139,
-            'script_address': 19,
-            'key_prefix': 239,
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-            'name': 'testnet4',
+        "testnet": {
+            "rpcport": 51475,
+            "pubkey_address": 139,
+            "script_address": 19,
+            "key_prefix": 239,
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet4",
+        },
+        "regtest": {
+            "rpcport": 51477,
+            "pubkey_address": 139,
+            "script_address": 19,
+            "key_prefix": 239,
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'regtest': {
-            'rpcport': 51477,
-            'pubkey_address': 139,
-            'script_address': 19,
-            'key_prefix': 239,
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.DASH: {
-        'name': 'dash',
-        'ticker': 'DASH',
-        'message_magic': 'DarkCoin Signed Message:\n',
-        'blocks_target': 60 * 2.5,
-        'decimal_places': 8,
-        'has_csv': True,
-        'has_segwit': False,
-        'mainnet': {
-            'rpcport': 9998,
-            'pubkey_address': 76,
-            'script_address': 16,
-            'key_prefix': 204,
-            'hrp': '',
-            'bip44': 5,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "dash",
+        "ticker": "DASH",
+        "message_magic": "DarkCoin Signed Message:\n",
+        "blocks_target": 60 * 2.5,
+        "decimal_places": 8,
+        "has_csv": True,
+        "has_segwit": False,
+        "mainnet": {
+            "rpcport": 9998,
+            "pubkey_address": 76,
+            "script_address": 16,
+            "key_prefix": 204,
+            "hrp": "",
+            "bip44": 5,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 19998,
-            'pubkey_address': 140,
-            'script_address': 19,
-            'key_prefix': 239,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "testnet": {
+            "rpcport": 19998,
+            "pubkey_address": 140,
+            "script_address": 19,
+            "key_prefix": 239,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+        "regtest": {
+            "rpcport": 18332,
+            "pubkey_address": 140,
+            "script_address": 19,
+            "key_prefix": 239,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'regtest': {
-            'rpcport': 18332,
-            'pubkey_address': 140,
-            'script_address': 19,
-            'key_prefix': 239,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.FIRO: {
-        'name': 'firo',
-        'ticker': 'FIRO',
-        'message_magic': 'Zcoin Signed Message:\n',
-        'blocks_target': 60 * 10,
-        'decimal_places': 8,
-        'has_cltv': False,
-        'has_csv': False,
-        'has_segwit': False,
-        'mainnet': {
-            'rpcport': 8888,
-            'pubkey_address': 82,
-            'script_address': 7,
-            'key_prefix': 210,
-            'hrp': '',
-            'bip44': 136,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "firo",
+        "ticker": "FIRO",
+        "message_magic": "Zcoin Signed Message:\n",
+        "blocks_target": 60 * 10,
+        "decimal_places": 8,
+        "has_cltv": False,
+        "has_csv": False,
+        "has_segwit": False,
+        "has_multiwallet": False,
+        "mainnet": {
+            "rpcport": 8888,
+            "pubkey_address": 82,
+            "script_address": 7,
+            "key_prefix": 210,
+            "hrp": "",
+            "bip44": 136,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 18888,
-            'pubkey_address': 65,
-            'script_address': 178,
-            'key_prefix': 185,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "testnet": {
+            "rpcport": 18888,
+            "pubkey_address": 65,
+            "script_address": 178,
+            "key_prefix": 185,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+        "regtest": {
+            "rpcport": 28888,
+            "pubkey_address": 65,
+            "script_address": 178,
+            "key_prefix": 239,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'regtest': {
-            'rpcport': 28888,
-            'pubkey_address': 65,
-            'script_address': 178,
-            'key_prefix': 239,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
     },
     Coins.NAV: {
-        'name': 'navcoin',
-        'ticker': 'NAV',
-        'message_magic': 'Navcoin Signed Message:\n',
-        'blocks_target': 30,
-        'decimal_places': 8,
-        'has_csv': True,
-        'has_segwit': True,
-        'mainnet': {
-            'rpcport': 44444,
-            'pubkey_address': 53,
-            'script_address': 85,
-            'key_prefix': 150,
-            'hrp': '',
-            'bip44': 130,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
+        "name": "navcoin",
+        "ticker": "NAV",
+        "message_magic": "Navcoin Signed Message:\n",
+        "blocks_target": 30,
+        "decimal_places": 8,
+        "has_csv": True,
+        "has_segwit": True,
+        "has_multiwallet": False,
+        "mainnet": {
+            "rpcport": 44444,
+            "pubkey_address": 53,
+            "script_address": 85,
+            "key_prefix": 150,
+            "hrp": "",
+            "bip44": 130,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+        "testnet": {
+            "rpcport": 44445,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+        "regtest": {
+            "rpcport": 44446,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+    },
+    Coins.BCH: {
+        "name": "bitcoincash",
+        "ticker": "BCH",
+        "display_name": "Bitcoin Cash",
+        "message_magic": "Bitcoin Signed Message:\n",
+        "blocks_target": 60 * 2,
+        "decimal_places": 8,
+        "has_cltv": True,
+        "has_csv": True,
+        "has_segwit": False,
+        "cli_binname": "bitcoin-cli",
+        "core_binname": "bitcoind",
+        "mainnet": {
+            "rpcport": 8332,
+            "pubkey_address": 0,
+            "script_address": 5,
+            "key_prefix": 128,
+            "hrp": "bitcoincash",
+            "bip44": 0,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+        },
+        "testnet": {
+            "rpcport": 18332,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "bchtest",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
+            "name": "testnet3",
+        },
+        "regtest": {
+            "rpcport": 18443,
+            "pubkey_address": 111,
+            "script_address": 196,
+            "key_prefix": 239,
+            "hrp": "bchreg",
+            "bip44": 1,
+            "min_amount": 100000,
+            "max_amount": 10000000 * COIN,
         },
-        'testnet': {
-            'rpcport': 44445,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'key_prefix': 239,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
     },
-        'regtest': {
-            'rpcport': 44446,
-            'pubkey_address': 111,
-            'script_address': 196,
-            'key_prefix': 239,
-            'hrp': '',
-            'bip44': 1,
-            'min_amount': 1000,
-            'max_amount': 100000 * COIN,
-        }
-    }
 }
+
+name_map = {}
 ticker_map = {}
 
 
 for c, params in chainparams.items():
-    ticker_map[params['ticker'].lower()] = c
+    name_map[params["name"].lower()] = c
+    ticker_map[params["ticker"].lower()] = c
 
 
 def getCoinIdFromTicker(ticker: str) -> str:
     try:
         return ticker_map[ticker.lower()]
     except Exception:
-        raise ValueError('Unknown coin')
+        raise ValueError(f"Unknown coin {ticker}")
+
+
+def getCoinIdFromName(name: str) -> str:
+    try:
+        return name_map[name.lower()]
+    except Exception:
+        raise ValueError(f"Unknown coin {name}")
+
+
+def isKnownCoinName(name: str) -> bool:
+    return params["name"].lower() in name_map

basicswap/config.py

@@ -1,38 +1,51 @@
 # -*- coding: utf-8 -*-
 
-# Copyright (c) 2019-2023 tecnovert
+# Copyright (c) 2019-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
 import os
 
-CONFIG_FILENAME = 'basicswap.json'
-BASICSWAP_DATADIR = os.getenv('BASICSWAP_DATADIR', os.path.join('~', '.basicswap'))
+CONFIG_FILENAME = "basicswap.json"
+BASICSWAP_DATADIR = os.getenv("BASICSWAP_DATADIR", os.path.join("~", ".basicswap"))
 DEFAULT_ALLOW_CORS = False
-TEST_DATADIRS = os.path.expanduser(os.getenv('DATADIRS', '/tmp/basicswap'))
-DEFAULT_TEST_BINDIR = os.path.expanduser(os.getenv('DEFAULT_TEST_BINDIR', os.path.join('~', '.basicswap', 'bin')))
+DEFAULT_RPC_POOL_ENABLED = True
+DEFAULT_RPC_POOL_MAX_CONNECTIONS = 5
+TEST_DATADIRS = os.path.expanduser(os.getenv("DATADIRS", "/tmp/basicswap"))
+DEFAULT_TEST_BINDIR = os.path.expanduser(
+    os.getenv("DEFAULT_TEST_BINDIR", os.path.join("~", ".basicswap", "bin"))
+)
 
-bin_suffix = ('.exe' if os.name == 'nt' else '')
-PARTICL_BINDIR = os.path.expanduser(os.getenv('PARTICL_BINDIR', os.path.join(DEFAULT_TEST_BINDIR, 'particl')))
-PARTICLD = os.getenv('PARTICLD', 'particld' + bin_suffix)
-PARTICL_CLI = os.getenv('PARTICL_CLI', 'particl-cli' + bin_suffix)
-PARTICL_TX = os.getenv('PARTICL_TX', 'particl-tx' + bin_suffix)
+bin_suffix = ".exe" if os.name == "nt" else ""
+PARTICL_BINDIR = os.path.expanduser(
+    os.getenv("PARTICL_BINDIR", os.path.join(DEFAULT_TEST_BINDIR, "particl"))
+)
+PARTICLD = os.getenv("PARTICLD", "particld" + bin_suffix)
+PARTICL_CLI = os.getenv("PARTICL_CLI", "particl-cli" + bin_suffix)
+PARTICL_TX = os.getenv("PARTICL_TX", "particl-tx" + bin_suffix)
 
-BITCOIN_BINDIR = os.path.expanduser(os.getenv('BITCOIN_BINDIR', os.path.join(DEFAULT_TEST_BINDIR, 'bitcoin')))
-BITCOIND = os.getenv('BITCOIND', 'bitcoind' + bin_suffix)
-BITCOIN_CLI = os.getenv('BITCOIN_CLI', 'bitcoin-cli' + bin_suffix)
-BITCOIN_TX = os.getenv('BITCOIN_TX', 'bitcoin-tx' + bin_suffix)
+BITCOIN_BINDIR = os.path.expanduser(
+    os.getenv("BITCOIN_BINDIR", os.path.join(DEFAULT_TEST_BINDIR, "bitcoin"))
+)
+BITCOIND = os.getenv("BITCOIND", "bitcoind" + bin_suffix)
+BITCOIN_CLI = os.getenv("BITCOIN_CLI", "bitcoin-cli" + bin_suffix)
+BITCOIN_TX = os.getenv("BITCOIN_TX", "bitcoin-tx" + bin_suffix)
 
-LITECOIN_BINDIR = os.path.expanduser(os.getenv('LITECOIN_BINDIR', os.path.join(DEFAULT_TEST_BINDIR, 'litecoin')))
-LITECOIND = os.getenv('LITECOIND', 'litecoind' + bin_suffix)
-LITECOIN_CLI = os.getenv('LITECOIN_CLI', 'litecoin-cli' + bin_suffix)
-LITECOIN_TX = os.getenv('LITECOIN_TX', 'litecoin-tx' + bin_suffix)
+LITECOIN_BINDIR = os.path.expanduser(
+    os.getenv("LITECOIN_BINDIR", os.path.join(DEFAULT_TEST_BINDIR, "litecoin"))
+)
+LITECOIND = os.getenv("LITECOIND", "litecoind" + bin_suffix)
+LITECOIN_CLI = os.getenv("LITECOIN_CLI", "litecoin-cli" + bin_suffix)
+LITECOIN_TX = os.getenv("LITECOIN_TX", "litecoin-tx" + bin_suffix)
 
-NAMECOIN_BINDIR = os.path.expanduser(os.getenv('NAMECOIN_BINDIR', os.path.join(DEFAULT_TEST_BINDIR, 'namecoin')))
-NAMECOIND = os.getenv('NAMECOIND', 'namecoind' + bin_suffix)
-NAMECOIN_CLI = os.getenv('NAMECOIN_CLI', 'namecoin-cli' + bin_suffix)
-NAMECOIN_TX = os.getenv('NAMECOIN_TX', 'namecoin-tx' + bin_suffix)
+DOGECOIND = os.getenv("DOGECOIND", "dogecoind" + bin_suffix)
+DOGECOIN_CLI = os.getenv("DOGECOIN_CLI", "dogecoin-cli" + bin_suffix)
+DOGECOIN_TX = os.getenv("DOGECOIN_TX", "dogecoin-tx" + bin_suffix)
 
-XMR_BINDIR = os.path.expanduser(os.getenv('XMR_BINDIR', os.path.join(DEFAULT_TEST_BINDIR, 'monero')))
-XMRD = os.getenv('XMRD', 'monerod' + bin_suffix)
-XMR_WALLET_RPC = os.getenv('XMR_WALLET_RPC', 'monero-wallet-rpc' + bin_suffix)
+XMR_BINDIR = os.path.expanduser(
+    os.getenv("XMR_BINDIR", os.path.join(DEFAULT_TEST_BINDIR, "monero"))
+)
+XMRD = os.getenv("XMRD", "monerod" + bin_suffix)
+XMR_WALLET_RPC = os.getenv("XMR_WALLET_RPC", "monero-wallet-rpc" + bin_suffix)
+
+# NOTE: Adding coin definitions here is deprecated.  Please add in coin test file.

basicswap/contrib/ed25519_fast.py

@@ -1,356 +0,0 @@
-# ed25519.py - Optimized version of the reference implementation of Ed25519
-#
-# Written in 2011? by Daniel J. Bernstein <djb@cr.yp.to>
-#            2013 by Donald Stufft <donald@stufft.io>
-#            2013 by Alex Gaynor <alex.gaynor@gmail.com>
-#            2013 by Greg Price <price@mit.edu>
-#
-# To the extent possible under law, the author(s) have dedicated all copyright
-# and related and neighboring rights to this software to the public domain
-# worldwide. This software is distributed without any warranty.
-#
-# You should have received a copy of the CC0 Public Domain Dedication along
-# with this software. If not, see
-# <http://creativecommons.org/publicdomain/zero/1.0/>.
-
-"""
-NB: This code is not safe for use with secret keys or secret data.
-The only safe use of this code is for verifying signatures on public messages.
-
-Functions for computing the public key of a secret key and for signing
-a message are included, namely publickey_unsafe and signature_unsafe,
-for testing purposes only.
-
-The root of the problem is that Python's long-integer arithmetic is
-not designed for use in cryptography.  Specifically, it may take more
-or less time to execute an operation depending on the values of the
-inputs, and its memory access patterns may also depend on the inputs.
-This opens it to timing and cache side-channel attacks which can
-disclose data to an attacker.  We rely on Python's long-integer
-arithmetic, so we cannot handle secrets without risking their disclosure.
-"""
-
-import hashlib
-import operator
-import sys
-
-
-__version__ = "1.0.dev0"
-
-
-# Useful for very coarse version differentiation.
-PY3 = sys.version_info[0] == 3
-
-if PY3:
-    indexbytes = operator.getitem
-    intlist2bytes = bytes
-    int2byte = operator.methodcaller("to_bytes", 1, "big")
-else:
-    int2byte = chr
-    range = xrange
-
-    def indexbytes(buf, i):
-        return ord(buf[i])
-
-    def intlist2bytes(l):
-        return b"".join(chr(c) for c in l)
-
-
-b = 256
-q = 2 ** 255 - 19
-l = 2 ** 252 + 27742317777372353535851937790883648493
-
-
-def H(m):
-    return hashlib.sha512(m).digest()
-
-
-def pow2(x, p):
-    """== pow(x, 2**p, q)"""
-    while p > 0:
-        x = x * x % q
-        p -= 1
-    return x
-
-
-def inv(z):
-    """$= z^{-1} \mod q$, for z != 0"""
-    # Adapted from curve25519_athlon.c in djb's Curve25519.
-    z2 = z * z % q                                # 2
-    z9 = pow2(z2, 2) * z % q                      # 9
-    z11 = z9 * z2 % q                             # 11
-    z2_5_0 = (z11 * z11) % q * z9 % q             # 31 == 2^5 - 2^0
-    z2_10_0 = pow2(z2_5_0, 5) * z2_5_0 % q        # 2^10 - 2^0
-    z2_20_0 = pow2(z2_10_0, 10) * z2_10_0 % q     # ...
-    z2_40_0 = pow2(z2_20_0, 20) * z2_20_0 % q
-    z2_50_0 = pow2(z2_40_0, 10) * z2_10_0 % q
-    z2_100_0 = pow2(z2_50_0, 50) * z2_50_0 % q
-    z2_200_0 = pow2(z2_100_0, 100) * z2_100_0 % q
-    z2_250_0 = pow2(z2_200_0, 50) * z2_50_0 % q   # 2^250 - 2^0
-    return pow2(z2_250_0, 5) * z11 % q            # 2^255 - 2^5 + 11 = q - 2
-
-
-d = -121665 * inv(121666) % q
-I = pow(2, (q - 1) // 4, q)
-
-
-def xrecover(y, sign=0):
-    xx = (y * y - 1) * inv(d * y * y + 1)
-    x = pow(xx, (q + 3) // 8, q)
-
-    if (x * x - xx) % q != 0:
-        x = (x * I) % q
-
-    if x % 2 != sign:
-        x = q-x
-
-    return x
-
-
-By = 4 * inv(5)
-Bx = xrecover(By)
-B = (Bx % q, By % q, 1, (Bx * By) % q)
-ident = (0, 1, 1, 0)
-
-
-def edwards_add(P, Q):
-    # This is formula sequence 'addition-add-2008-hwcd-3' from
-    # http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
-    (x1, y1, z1, t1) = P
-    (x2, y2, z2, t2) = Q
-
-    a = (y1-x1)*(y2-x2) % q
-    b = (y1+x1)*(y2+x2) % q
-    c = t1*2*d*t2 % q
-    dd = z1*2*z2 % q
-    e = b - a
-    f = dd - c
-    g = dd + c
-    h = b + a
-    x3 = e*f
-    y3 = g*h
-    t3 = e*h
-    z3 = f*g
-
-    return (x3 % q, y3 % q, z3 % q, t3 % q)
-
-
-def edwards_sub(P, Q):
-    # This is formula sequence 'addition-add-2008-hwcd-3' from
-    # http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
-    (x1, y1, z1, t1) = P
-    (x2, y2, z2, t2) = Q
-
-    # https://eprint.iacr.org/2008/522.pdf
-    #  The  negative  of  (X:Y:Z)is  (−X:Y:Z)
-    #x2 = q-x2
-    """
-    doesn't work
-    x2 = q-x2
-    t2 = (x2*y2) % q
-    """
-
-    zi = inv(z2)
-    x2 = q-((x2 * zi) % q)
-    y2 = (y2 * zi) % q
-    z2 = 1
-    t2 = (x2*y2) % q
-
-
-    a = (y1-x1)*(y2-x2) % q
-    b = (y1+x1)*(y2+x2) % q
-    c = t1*2*d*t2 % q
-    dd = z1*2*z2 % q
-    e = b - a
-    f = dd - c
-    g = dd + c
-    h = b + a
-    x3 = e*f
-    y3 = g*h
-    t3 = e*h
-    z3 = f*g
-
-    return (x3 % q, y3 % q, z3 % q, t3 % q)
-
-
-def edwards_double(P):
-    # This is formula sequence 'dbl-2008-hwcd' from
-    # http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
-    (x1, y1, z1, t1) = P
-
-    a = x1*x1 % q
-    b = y1*y1 % q
-    c = 2*z1*z1 % q
-    # dd = -a
-    e = ((x1+y1)*(x1+y1) - a - b) % q
-    g = -a + b  # dd + b
-    f = g - c
-    h = -a - b  # dd - b
-    x3 = e*f
-    y3 = g*h
-    t3 = e*h
-    z3 = f*g
-
-    return (x3 % q, y3 % q, z3 % q, t3 % q)
-
-
-def scalarmult(P, e):
-    if e == 0:
-        return ident
-    Q = scalarmult(P, e // 2)
-    Q = edwards_double(Q)
-    if e & 1:
-        Q = edwards_add(Q, P)
-    return Q
-
-
-# Bpow[i] == scalarmult(B, 2**i)
-Bpow = []
-
-
-def make_Bpow():
-    P = B
-    for i in range(253):
-        Bpow.append(P)
-        P = edwards_double(P)
-make_Bpow()
-
-
-def scalarmult_B(e):
-    """
-    Implements scalarmult(B, e) more efficiently.
-    """
-    # scalarmult(B, l) is the identity
-    e = e % l
-    P = ident
-    for i in range(253):
-        if e & 1:
-            P = edwards_add(P, Bpow[i])
-        e = e // 2
-    assert e == 0, e
-    return P
-
-
-def encodeint(y):
-    bits = [(y >> i) & 1 for i in range(b)]
-    return b''.join([
-        int2byte(sum([bits[i * 8 + j] << j for j in range(8)]))
-        for i in range(b//8)
-    ])
-
-
-def encodepoint(P):
-    (x, y, z, t) = P
-    zi = inv(z)
-    x = (x * zi) % q
-    y = (y * zi) % q
-    bits = [(y >> i) & 1 for i in range(b - 1)] + [x & 1]
-    return b''.join([
-        int2byte(sum([bits[i * 8 + j] << j for j in range(8)]))
-        for i in range(b // 8)
-    ])
-
-
-def bit(h, i):
-    return (indexbytes(h, i // 8) >> (i % 8)) & 1
-
-
-def publickey_unsafe(sk):
-    """
-    Not safe to use with secret keys or secret data.
-
-    See module docstring.  This function should be used for testing only.
-    """
-    h = H(sk)
-    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
-    A = scalarmult_B(a)
-    return encodepoint(A)
-
-
-def Hint(m):
-    h = H(m)
-    return sum(2 ** i * bit(h, i) for i in range(2 * b))
-
-
-def signature_unsafe(m, sk, pk):
-    """
-    Not safe to use with secret keys or secret data.
-
-    See module docstring.  This function should be used for testing only.
-    """
-    h = H(sk)
-    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
-    r = Hint(
-        intlist2bytes([indexbytes(h, j) for j in range(b // 8, b // 4)]) + m
-    )
-    R = scalarmult_B(r)
-    S = (r + Hint(encodepoint(R) + pk + m) * a) % l
-    return encodepoint(R) + encodeint(S)
-
-
-def isoncurve(P):
-    (x, y, z, t) = P
-    return (z % q != 0 and
-            x*y % q == z*t % q and
-            (y*y - x*x - z*z - d*t*t) % q == 0)
-
-
-def decodeint(s):
-    return sum(2 ** i * bit(s, i) for i in range(0, b))
-
-
-def decodepoint(s):
-    y = sum(2 ** i * bit(s, i) for i in range(0, b - 1))
-    x = xrecover(y)
-    if x & 1 != bit(s, b-1):
-        x = q - x
-    P = (x, y, 1, (x*y) % q)
-    if not isoncurve(P):
-        raise ValueError("decoding point that is not on curve")
-    return P
-
-
-class SignatureMismatch(Exception):
-    pass
-
-
-def checkvalid(s, m, pk):
-    """
-    Not safe to use when any argument is secret.
-
-    See module docstring.  This function should be used only for
-    verifying public signatures of public messages.
-    """
-    if len(s) != b // 4:
-        raise ValueError("signature length is wrong")
-
-    if len(pk) != b // 8:
-        raise ValueError("public-key length is wrong")
-
-    R = decodepoint(s[:b // 8])
-    A = decodepoint(pk)
-    S = decodeint(s[b // 8:b // 4])
-    h = Hint(encodepoint(R) + pk + m)
-
-    (x1, y1, z1, t1) = P = scalarmult_B(S)
-    (x2, y2, z2, t2) = Q = edwards_add(R, scalarmult(A, h))
-
-    if (not isoncurve(P) or not isoncurve(Q) or
-       (x1*z2 - x2*z1) % q != 0 or (y1*z2 - y2*z1) % q != 0):
-        raise SignatureMismatch("signature does not pass verification")
-
-
-def is_identity(P):
-    return True if P[0] == 0 else False
-
-
-def edwards_negated(P):
-    (x, y, z, t) = P
-
-    zi = inv(z)
-    x = q - ((x * zi) % q)
-    y = (y * zi) % q
-    z = 1
-    t = (x * y) % q
-
-    return (x, y, z, t)

basicswap/contrib/ellipticcurve.py

@@ -1,486 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-#
-# Implementation of elliptic curves, for cryptographic applications.
-#
-# This module doesn't provide any way to choose a random elliptic
-# curve, nor to verify that an elliptic curve was chosen randomly,
-# because one can simply use NIST's standard curves.
-#
-# Notes from X9.62-1998 (draft):
-#   Nomenclature:
-#     - Q is a public key.
-#     The "Elliptic Curve Domain Parameters" include:
-#     - q is the "field size", which in our case equals p.
-#     - p is a big prime.
-#     - G is a point of prime order (5.1.1.1).
-#     - n is the order of G (5.1.1.1).
-#   Public-key validation (5.2.2):
-#     - Verify that Q is not the point at infinity.
-#     - Verify that X_Q and Y_Q are in [0,p-1].
-#     - Verify that Q is on the curve.
-#     - Verify that nQ is the point at infinity.
-#   Signature generation (5.3):
-#     - Pick random k from [1,n-1].
-#   Signature checking (5.4.2):
-#     - Verify that r and s are in [1,n-1].
-#
-# Version of 2008.11.25.
-#
-# Revision history:
-#    2005.12.31 - Initial version.
-#    2008.11.25 - Change CurveFp.is_on to contains_point.
-#
-# Written in 2005 by Peter Pearson and placed in the public domain.
-
-def inverse_mod(a, m):
-    """Inverse of a mod m."""
-
-    if a < 0 or m <= a:
-        a = a % m
-
-    # From Ferguson and Schneier, roughly:
-
-    c, d = a, m
-    uc, vc, ud, vd = 1, 0, 0, 1
-    while c != 0:
-        q, c, d = divmod(d, c) + (c,)
-        uc, vc, ud, vd = ud - q * uc, vd - q * vc, uc, vc
-
-    # At this point, d is the GCD, and ud*a+vd*m = d.
-    # If d == 1, this means that ud is a inverse.
-
-    assert d == 1
-    if ud > 0:
-        return ud
-    else:
-        return ud + m
-
-
-def modular_sqrt(a, p):
-    # from http://eli.thegreenplace.net/2009/03/07/computing-modular-square-roots-in-python/
-    """ Find a quadratic residue (mod p) of 'a'. p
-    must be an odd prime.
-
-    Solve the congruence of the form:
-    x^2 = a (mod p)
-    And returns x. Note that p - x is also a root.
-
-    0 is returned is no square root exists for
-    these a and p.
-
-    The Tonelli-Shanks algorithm is used (except
-    for some simple cases in which the solution
-    is known from an identity). This algorithm
-    runs in polynomial time (unless the
-    generalized Riemann hypothesis is false).
-    """
-    # Simple cases
-    #
-    if legendre_symbol(a, p) != 1:
-        return 0
-    elif a == 0:
-        return 0
-    elif p == 2:
-        return p
-    elif p % 4 == 3:
-        return pow(a, (p + 1) // 4, p)
-
-    # Partition p-1 to s * 2^e for an odd s (i.e.
-    # reduce all the powers of 2 from p-1)
-    #
-    s = p - 1
-    e = 0
-    while s % 2 == 0:
-        s /= 2
-        e += 1
-
-    # Find some 'n' with a legendre symbol n|p = -1.
-    # Shouldn't take long.
-    #
-    n = 2
-    while legendre_symbol(n, p) != -1:
-        n += 1
-
-    # Here be dragons!
-    # Read the paper "Square roots from 1; 24, 51,
-    # 10 to Dan Shanks" by Ezra Brown for more
-    # information
-    #
-
-    # x is a guess of the square root that gets better
-    # with each iteration.
-    # b is the "fudge factor" - by how much we're off
-    # with the guess. The invariant x^2 = ab (mod p)
-    # is maintained throughout the loop.
-    # g is used for successive powers of n to update
-    # both a and b
-    # r is the exponent - decreases with each update
-    #
-    x = pow(a, (s + 1) // 2, p)
-    b = pow(a, s, p)
-    g = pow(n, s, p)
-    r = e
-
-    while True:
-        t = b
-        m = 0
-        for m in range(r):
-            if t == 1:
-                break
-            t = pow(t, 2, p)
-
-        if m == 0:
-            return x
-
-        gs = pow(g, 2 ** (r - m - 1), p)
-        g = (gs * gs) % p
-        x = (x * gs) % p
-        b = (b * g) % p
-        r = m
-
-
-def legendre_symbol(a, p):
-    """ Compute the Legendre symbol a|p using
-    Euler's criterion. p is a prime, a is
-    relatively prime to p (if p divides
-    a, then a|p = 0)
-
-    Returns 1 if a has a square root modulo
-    p, -1 otherwise.
-    """
-    ls = pow(a, (p - 1) // 2, p)
-    return -1 if ls == p - 1 else ls
-
-
-def jacobi_symbol(n, k):
-    """Compute the Jacobi symbol of n modulo k
-
-    See http://en.wikipedia.org/wiki/Jacobi_symbol
-
-    For our application k is always prime, so this is the same as the Legendre symbol."""
-    assert k > 0 and k & 1, "jacobi symbol is only defined for positive odd k"
-    n %= k
-    t = 0
-    while n != 0:
-        while n & 1 == 0:
-            n >>= 1
-            r = k & 7
-            t ^= (r == 3 or r == 5)
-        n, k = k, n
-        t ^= (n & k & 3 == 3)
-        n = n % k
-    if k == 1:
-        return -1 if t else 1
-    return 0
-
-
-class CurveFp(object):
-    """Elliptic Curve over the field of integers modulo a prime."""
-    def __init__(self, p, a, b):
-        """The curve of points satisfying y^2 = x^3 + a*x + b (mod p)."""
-        self.__p = p
-        self.__a = a
-        self.__b = b
-
-    def p(self):
-        return self.__p
-
-    def a(self):
-        return self.__a
-
-    def b(self):
-        return self.__b
-
-    def contains_point(self, x, y):
-        """Is the point (x,y) on this curve?"""
-        return (y * y - (x * x * x + self.__a * x + self.__b)) % self.__p == 0
-
-
-class Point(object):
-    """ A point on an elliptic curve. Altering x and y is forbidding,
-        but they can be read by the x() and y() methods."""
-    def __init__(self, curve, x, y, order=None):
-        """curve, x, y, order; order (optional) is the order of this point."""
-        self.__curve = curve
-        self.__x = x
-        self.__y = y
-        self.__order = order
-        # self.curve is allowed to be None only for INFINITY:
-        if self.__curve:
-            assert self.__curve.contains_point(x, y)
-        if order:
-            assert self * order == INFINITY
-
-    def __eq__(self, other):
-        """Return 1 if the points are identical, 0 otherwise."""
-        if self.__curve == other.__curve \
-           and self.__x == other.__x \
-           and self.__y == other.__y:
-            return 1
-        else:
-            return 0
-
-    def __add__(self, other):
-        """Add one point to another point."""
-
-        # X9.62 B.3:
-        if other == INFINITY:
-            return self
-        if self == INFINITY:
-            return other
-        assert self.__curve == other.__curve
-        if self.__x == other.__x:
-            if (self.__y + other.__y) % self.__curve.p() == 0:
-                return INFINITY
-            else:
-                return self.double()
-
-        p = self.__curve.p()
-
-        l = ((other.__y - self.__y) * inverse_mod(other.__x - self.__x, p)) % p
-
-        x3 = (l * l - self.__x - other.__x) % p
-        y3 = (l * (self.__x - x3) - self.__y) % p
-
-        return Point(self.__curve, x3, y3)
-
-    def __sub__(self, other):
-        #The inverse of a point P=(xP,yP) is its reflexion across the x-axis : P′=(xP,−yP).
-        #If you want to compute Q−P, just replace yP by −yP in the usual formula for point addition.
-
-        # X9.62 B.3:
-        if other == INFINITY:
-            return self
-        if self == INFINITY:
-            return other
-        assert self.__curve == other.__curve
-
-        p = self.__curve.p()
-        #opi = inverse_mod(other.__y, p)
-        opi = -other.__y % p
-        #print(opi)
-        #print(-other.__y % p)
-
-        if self.__x == other.__x:
-            if (self.__y + opi) % self.__curve.p() == 0:
-                return INFINITY
-            else:
-                return self.double
-
-        l = ((opi - self.__y) * inverse_mod(other.__x - self.__x, p)) % p
-
-        x3 = (l * l - self.__x - other.__x) % p
-        y3 = (l * (self.__x - x3) - self.__y) % p
-
-        return Point(self.__curve, x3, y3)
-
-    def __mul__(self, e):
-        if self.__order:
-            e %= self.__order
-        if e == 0 or self == INFINITY:
-            return INFINITY
-        result, q = INFINITY, self
-        while e:
-            if e & 1:
-                result += q
-            e, q = e >> 1, q.double()
-        return result
-
-    """
-    def __mul__(self, other):
-        #Multiply a point by an integer.
-
-        def leftmost_bit( x ):
-            assert x > 0
-            result = 1
-            while result <= x: result = 2 * result
-            return result // 2
-
-        e = other
-        if self.__order: e = e % self.__order
-        if e == 0: return INFINITY
-        if self == INFINITY: return INFINITY
-        assert e > 0
-
-        # From X9.62 D.3.2:
-
-        e3 = 3 * e
-        negative_self = Point( self.__curve, self.__x, -self.__y, self.__order )
-        i = leftmost_bit( e3 ) // 2
-        result = self
-        # print "Multiplying %s by %d (e3 = %d):" % ( self, other, e3 )
-        while i > 1:
-            result = result.double()
-            if ( e3 & i ) != 0 and ( e & i ) == 0: result = result + self
-            if ( e3 & i ) == 0 and ( e & i ) != 0: result = result + negative_self
-            # print ". . . i = %d, result = %s" % ( i, result )
-            i = i // 2
-
-        return result
-    """
-
-    def __rmul__(self, other):
-        """Multiply a point by an integer."""
-
-        return self * other
-
-    def __str__(self):
-        if self == INFINITY:
-            return "infinity"
-        return "(%d, %d)" % (self.__x, self.__y)
-
-    def inverse(self):
-        return Point(self.__curve, self.__x, -self.__y % self.__curve.p())
-
-    def double(self):
-        """Return a new point that is twice the old."""
-
-        if self == INFINITY:
-            return INFINITY
-
-        # X9.62 B.3:
-
-        p = self.__curve.p()
-        a = self.__curve.a()
-
-        l = ((3 * self.__x * self.__x + a) * inverse_mod(2 * self.__y, p)) % p
-
-        x3 = (l * l - 2 * self.__x) % p
-        y3 = (l * (self.__x - x3) - self.__y) % p
-
-        return Point(self.__curve, x3, y3)
-
-    def x(self):
-        return self.__x
-
-    def y(self):
-        return self.__y
-
-    def pair(self):
-        return (self.__x, self.__y)
-
-    def curve(self):
-        return self.__curve
-
-    def order(self):
-        return self.__order
-
-
-# This one point is the Point At Infinity for all purposes:
-INFINITY = Point(None, None, None)
-
-
-def __main__():
-
-    class FailedTest(Exception):
-        pass
-
-    def test_add(c, x1, y1, x2, y2, x3, y3):
-        """We expect that on curve c, (x1,y1) + (x2, y2 ) = (x3, y3)."""
-        p1 = Point(c, x1, y1)
-        p2 = Point(c, x2, y2)
-        p3 = p1 + p2
-        print("%s + %s = %s" % (p1, p2, p3))
-        if p3.x() != x3 or p3.y() != y3:
-            raise FailedTest("Failure: should give (%d,%d)." % (x3, y3))
-        else:
-            print(" Good.")
-
-    def test_double(c, x1, y1, x3, y3):
-        """We expect that on curve c, 2*(x1,y1) = (x3, y3)."""
-        p1 = Point(c, x1, y1)
-        p3 = p1.double()
-        print("%s doubled = %s" % (p1, p3))
-        if p3.x() != x3 or p3.y() != y3:
-            raise FailedTest("Failure: should give (%d,%d)." % (x3, y3))
-        else:
-            print(" Good.")
-
-    def test_double_infinity(c):
-        """We expect that on curve c, 2*INFINITY = INFINITY."""
-        p1 = INFINITY
-        p3 = p1.double()
-        print("%s doubled = %s" % (p1, p3))
-        if p3.x() != INFINITY.x() or p3.y() != INFINITY.y():
-            raise FailedTest("Failure: should give (%d,%d)." % (INFINITY.x(), INFINITY.y()))
-        else:
-            print(" Good.")
-
-    def test_multiply(c, x1, y1, m, x3, y3):
-        """We expect that on curve c, m*(x1,y1) = (x3,y3)."""
-        p1 = Point(c, x1, y1)
-        p3 = p1 * m
-        print("%s * %d = %s" % (p1, m, p3))
-        if p3.x() != x3 or p3.y() != y3:
-            raise FailedTest("Failure: should give (%d,%d)." % (x3, y3))
-        else:
-            print(" Good.")
-
-    # A few tests from X9.62 B.3:
-
-    c = CurveFp(23, 1, 1)
-    test_add(c, 3, 10, 9, 7, 17, 20)
-    test_double(c, 3, 10, 7, 12)
-    test_add(c, 3, 10, 3, 10, 7, 12)    # (Should just invoke double.)
-    test_multiply(c, 3, 10, 2, 7, 12)
-
-    test_double_infinity(c)
-
-    # From X9.62 I.1 (p. 96):
-
-    g = Point(c, 13, 7, 7)
-
-    check = INFINITY
-    for i in range(7 + 1):
-        p = (i % 7) * g
-        print("%s * %d = %s, expected %s . . ." % (g, i, p, check))
-        if p == check:
-            print(" Good.")
-        else:
-            raise FailedTest("Bad.")
-        check = check + g
-
-    # NIST Curve P-192:
-    p = 6277101735386680763835789423207666416083908700390324961279
-    r = 6277101735386680763835789423176059013767194773182842284081
-    #s = 0x3045ae6fc8422f64ed579528d38120eae12196d5L
-    c = 0x3099d2bbbfcb2538542dcd5fb078b6ef5f3d6fe2c745de65
-    b = 0x64210519e59c80e70fa7e9ab72243049feb8deecc146b9b1
-    Gx = 0x188da80eb03090f67cbf20eb43a18800f4ff0afd82ff1012
-    Gy = 0x07192b95ffc8da78631011ed6b24cdd573f977a11e794811
-
-    c192 = CurveFp(p, -3, b)
-    p192 = Point(c192, Gx, Gy, r)
-
-    # Checking against some sample computations presented
-    # in X9.62:
-
-    d = 651056770906015076056810763456358567190100156695615665659
-    Q = d * p192
-    if Q.x() != 0x62B12D60690CDCF330BABAB6E69763B471F994DD702D16A5:
-        raise FailedTest("p192 * d came out wrong.")
-    else:
-        print("p192 * d came out right.")
-
-    k = 6140507067065001063065065565667405560006161556565665656654
-    R = k * p192
-    if R.x() != 0x885052380FF147B734C330C43D39B2C4A89F29B0F749FEAD \
-       or R.y() != 0x9CF9FA1CBEFEFB917747A3BB29C072B9289C2547884FD835:
-        raise FailedTest("k * p192 came out wrong.")
-    else:
-        print("k * p192 came out right.")
-
-    u1 = 2563697409189434185194736134579731015366492496392189760599
-    u2 = 6266643813348617967186477710235785849136406323338782220568
-    temp = u1 * p192 + u2 * Q
-    if temp.x() != 0x885052380FF147B734C330C43D39B2C4A89F29B0F749FEAD \
-       or temp.y() != 0x9CF9FA1CBEFEFB917747A3BB29C072B9289C2547884FD835:
-        raise FailedTest("u1 * p192 + u2 * Q came out wrong.")
-    else:
-        print("u1 * p192 + u2 * Q came out right.")
-
-
-if __name__ == "__main__":
-    __main__()

basicswap/contrib/key.py

@@ -1,386 +0,0 @@
-# Copyright (c) 2019 Pieter Wuille
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-"""Test-only secp256k1 elliptic curve implementation
-
-WARNING: This code is slow, uses bad randomness, does not properly protect
-keys, and is trivially vulnerable to side channel attacks. Do not use for
-anything but tests."""
-import random
-
-def modinv(a, n):
-    """Compute the modular inverse of a modulo n
-
-    See https://en.wikipedia.org/wiki/Extended_Euclidean_algorithm#Modular_integers.
-    """
-    t1, t2 = 0, 1
-    r1, r2 = n, a
-    while r2 != 0:
-        q = r1 // r2
-        t1, t2 = t2, t1 - q * t2
-        r1, r2 = r2, r1 - q * r2
-    if r1 > 1:
-        return None
-    if t1 < 0:
-        t1 += n
-    return t1
-
-def jacobi_symbol(n, k):
-    """Compute the Jacobi symbol of n modulo k
-
-    See http://en.wikipedia.org/wiki/Jacobi_symbol
-
-    For our application k is always prime, so this is the same as the Legendre symbol."""
-    assert k > 0 and k & 1, "jacobi symbol is only defined for positive odd k"
-    n %= k
-    t = 0
-    while n != 0:
-        while n & 1 == 0:
-            n >>= 1
-            r = k & 7
-            t ^= (r == 3 or r == 5)
-        n, k = k, n
-        t ^= (n & k & 3 == 3)
-        n = n % k
-    if k == 1:
-        return -1 if t else 1
-    return 0
-
-def modsqrt(a, p):
-    """Compute the square root of a modulo p when p % 4 = 3.
-
-    The Tonelli-Shanks algorithm can be used. See https://en.wikipedia.org/wiki/Tonelli-Shanks_algorithm
-
-    Limiting this function to only work for p % 4 = 3 means we don't need to
-    iterate through the loop. The highest n such that p - 1 = 2^n Q with Q odd
-    is n = 1. Therefore Q = (p-1)/2 and sqrt = a^((Q+1)/2) = a^((p+1)/4)
-
-    secp256k1's is defined over field of size 2**256 - 2**32 - 977, which is 3 mod 4.
-    """
-    if p % 4 != 3:
-        raise NotImplementedError("modsqrt only implemented for p % 4 = 3")
-    sqrt = pow(a, (p + 1)//4, p)
-    if pow(sqrt, 2, p) == a % p:
-        return sqrt
-    return None
-
-class EllipticCurve:
-    def __init__(self, p, a, b):
-        """Initialize elliptic curve y^2 = x^3 + a*x + b over GF(p)."""
-        self.p = p
-        self.a = a % p
-        self.b = b % p
-
-    def affine(self, p1):
-        """Convert a Jacobian point tuple p1 to affine form, or None if at infinity.
-
-        An affine point is represented as the Jacobian (x, y, 1)"""
-        x1, y1, z1 = p1
-        if z1 == 0:
-            return None
-        inv = modinv(z1, self.p)
-        inv_2 = (inv**2) % self.p
-        inv_3 = (inv_2 * inv) % self.p
-        return ((inv_2 * x1) % self.p, (inv_3 * y1) % self.p, 1)
-
-    def negate(self, p1):
-        """Negate a Jacobian point tuple p1."""
-        x1, y1, z1 = p1
-        return (x1, (self.p - y1) % self.p, z1)
-
-    def on_curve(self, p1):
-        """Determine whether a Jacobian tuple p is on the curve (and not infinity)"""
-        x1, y1, z1 = p1
-        z2 = pow(z1, 2, self.p)
-        z4 = pow(z2, 2, self.p)
-        return z1 != 0 and (pow(x1, 3, self.p) + self.a * x1 * z4 + self.b * z2 * z4 - pow(y1, 2, self.p)) % self.p == 0
-
-    def is_x_coord(self, x):
-        """Test whether x is a valid X coordinate on the curve."""
-        x_3 = pow(x, 3, self.p)
-        return jacobi_symbol(x_3 + self.a * x + self.b, self.p) != -1
-
-    def lift_x(self, x):
-        """Given an X coordinate on the curve, return a corresponding affine point."""
-        x_3 = pow(x, 3, self.p)
-        v = x_3 + self.a * x + self.b
-        y = modsqrt(v, self.p)
-        if y is None:
-            return None
-        return (x, y, 1)
-
-    def double(self, p1):
-        """Double a Jacobian tuple p1
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Doubling"""
-        x1, y1, z1 = p1
-        if z1 == 0:
-            return (0, 1, 0)
-        y1_2 = (y1**2) % self.p
-        y1_4 = (y1_2**2) % self.p
-        x1_2 = (x1**2) % self.p
-        s = (4*x1*y1_2) % self.p
-        m = 3*x1_2
-        if self.a:
-            m += self.a * pow(z1, 4, self.p)
-        m = m % self.p
-        x2 = (m**2 - 2*s) % self.p
-        y2 = (m*(s - x2) - 8*y1_4) % self.p
-        z2 = (2*y1*z1) % self.p
-        return (x2, y2, z2)
-
-    def add_mixed(self, p1, p2):
-        """Add a Jacobian tuple p1 and an affine tuple p2
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition (with affine point)"""
-        x1, y1, z1 = p1
-        x2, y2, z2 = p2
-        assert(z2 == 1)
-        # Adding to the point at infinity is a no-op
-        if z1 == 0:
-            return p2
-        z1_2 = (z1**2) % self.p
-        z1_3 = (z1_2 * z1) % self.p
-        u2 = (x2 * z1_2) % self.p
-        s2 = (y2 * z1_3) % self.p
-        if x1 == u2:
-            if (y1 != s2):
-                # p1 and p2 are inverses. Return the point at infinity.
-                return (0, 1, 0)
-            # p1 == p2. The formulas below fail when the two points are equal.
-            return self.double(p1)
-        h = u2 - x1
-        r = s2 - y1
-        h_2 = (h**2) % self.p
-        h_3 = (h_2 * h) % self.p
-        u1_h_2 = (x1 * h_2) % self.p
-        x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
-        y3 = (r*(u1_h_2 - x3) - y1*h_3) % self.p
-        z3 = (h*z1) % self.p
-        return (x3, y3, z3)
-
-    def add(self, p1, p2):
-        """Add two Jacobian tuples p1 and p2
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition"""
-        x1, y1, z1 = p1
-        x2, y2, z2 = p2
-        # Adding the point at infinity is a no-op
-        if z1 == 0:
-            return p2
-        if z2 == 0:
-            return p1
-        # Adding an Affine to a Jacobian is more efficient since we save field multiplications and squarings when z = 1
-        if z1 == 1:
-            return self.add_mixed(p2, p1)
-        if z2 == 1:
-            return self.add_mixed(p1, p2)
-        z1_2 = (z1**2) % self.p
-        z1_3 = (z1_2 * z1) % self.p
-        z2_2 = (z2**2) % self.p
-        z2_3 = (z2_2 * z2) % self.p
-        u1 = (x1 * z2_2) % self.p
-        u2 = (x2 * z1_2) % self.p
-        s1 = (y1 * z2_3) % self.p
-        s2 = (y2 * z1_3) % self.p
-        if u1 == u2:
-            if (s1 != s2):
-                # p1 and p2 are inverses. Return the point at infinity.
-                return (0, 1, 0)
-            # p1 == p2. The formulas below fail when the two points are equal.
-            return self.double(p1)
-        h = u2 - u1
-        r = s2 - s1
-        h_2 = (h**2) % self.p
-        h_3 = (h_2 * h) % self.p
-        u1_h_2 = (u1 * h_2) % self.p
-        x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
-        y3 = (r*(u1_h_2 - x3) - s1*h_3) % self.p
-        z3 = (h*z1*z2) % self.p
-        return (x3, y3, z3)
-
-    def mul(self, ps):
-        """Compute a (multi) point multiplication
-
-        ps is a list of (Jacobian tuple, scalar) pairs.
-        """
-        r = (0, 1, 0)
-        for i in range(255, -1, -1):
-            r = self.double(r)
-            for (p, n) in ps:
-                if ((n >> i) & 1):
-                    r = self.add(r, p)
-        return r
-
-SECP256K1 = EllipticCurve(2**256 - 2**32 - 977, 0, 7)
-SECP256K1_G = (0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798, 0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8, 1)
-SECP256K1_ORDER = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141
-SECP256K1_ORDER_HALF = SECP256K1_ORDER // 2
-
-class ECPubKey():
-    """A secp256k1 public key"""
-
-    def __init__(self):
-        """Construct an uninitialized public key"""
-        self.valid = False
-
-    def set(self, data):
-        """Construct a public key from a serialization in compressed or uncompressed format"""
-        if (len(data) == 65 and data[0] == 0x04):
-            p = (int.from_bytes(data[1:33], 'big'), int.from_bytes(data[33:65], 'big'), 1)
-            self.valid = SECP256K1.on_curve(p)
-            if self.valid:
-                self.p = p
-                self.compressed = False
-        elif (len(data) == 33 and (data[0] == 0x02 or data[0] == 0x03)):
-            x = int.from_bytes(data[1:33], 'big')
-            if SECP256K1.is_x_coord(x):
-                p = SECP256K1.lift_x(x)
-                # if the oddness of the y co-ord isn't correct, find the other
-                # valid y
-                if (p[1] & 1) != (data[0] & 1):
-                    p = SECP256K1.negate(p)
-                self.p = p
-                self.valid = True
-                self.compressed = True
-            else:
-                self.valid = False
-        else:
-            self.valid = False
-
-    @property
-    def is_compressed(self):
-        return self.compressed
-
-    @property
-    def is_valid(self):
-        return self.valid
-
-    def get_bytes(self):
-        assert(self.valid)
-        p = SECP256K1.affine(self.p)
-        if p is None:
-            return None
-        if self.compressed:
-            return bytes([0x02 + (p[1] & 1)]) + p[0].to_bytes(32, 'big')
-        else:
-            return bytes([0x04]) + p[0].to_bytes(32, 'big') + p[1].to_bytes(32, 'big')
-
-    def verify_ecdsa(self, sig, msg, low_s=True):
-        """Verify a strictly DER-encoded ECDSA signature against this pubkey.
-
-        See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
-        ECDSA verifier algorithm"""
-        assert(self.valid)
-
-        # Extract r and s from the DER formatted signature. Return false for
-        # any DER encoding errors.
-        if (sig[1] + 2 != len(sig)):
-            return False
-        if (len(sig) < 4):
-            return False
-        if (sig[0] != 0x30):
-            return False
-        if (sig[2] != 0x02):
-            return False
-        rlen = sig[3]
-        if (len(sig) < 6 + rlen):
-            return False
-        if rlen < 1 or rlen > 33:
-            return False
-        if sig[4] >= 0x80:
-            return False
-        if (rlen > 1 and (sig[4] == 0) and not (sig[5] & 0x80)):
-            return False
-        r = int.from_bytes(sig[4:4+rlen], 'big')
-        if (sig[4+rlen] != 0x02):
-            return False
-        slen = sig[5+rlen]
-        if slen < 1 or slen > 33:
-            return False
-        if (len(sig) != 6 + rlen + slen):
-            return False
-        if sig[6+rlen] >= 0x80:
-            return False
-        if (slen > 1 and (sig[6+rlen] == 0) and not (sig[7+rlen] & 0x80)):
-            return False
-        s = int.from_bytes(sig[6+rlen:6+rlen+slen], 'big')
-
-        # Verify that r and s are within the group order
-        if r < 1 or s < 1 or r >= SECP256K1_ORDER or s >= SECP256K1_ORDER:
-            return False
-        if low_s and s >= SECP256K1_ORDER_HALF:
-            return False
-        z = int.from_bytes(msg, 'big')
-
-        # Run verifier algorithm on r, s
-        w = modinv(s, SECP256K1_ORDER)
-        u1 = z*w % SECP256K1_ORDER
-        u2 = r*w % SECP256K1_ORDER
-        R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, u1), (self.p, u2)]))
-        if R is None or R[0] != r:
-            return False
-        return True
-
-class ECKey():
-    """A secp256k1 private key"""
-
-    def __init__(self):
-        self.valid = False
-
-    def set(self, secret, compressed):
-        """Construct a private key object with given 32-byte secret and compressed flag."""
-        assert(len(secret) == 32)
-        secret = int.from_bytes(secret, 'big')
-        self.valid = (secret > 0 and secret < SECP256K1_ORDER)
-        if self.valid:
-            self.secret = secret
-            self.compressed = compressed
-
-    def generate(self, compressed=True):
-        """Generate a random private key (compressed or uncompressed)."""
-        self.set(random.randrange(1, SECP256K1_ORDER).to_bytes(32, 'big'), compressed)
-
-    def get_bytes(self):
-        """Retrieve the 32-byte representation of this key."""
-        assert(self.valid)
-        return self.secret.to_bytes(32, 'big')
-
-    @property
-    def is_valid(self):
-        return self.valid
-
-    @property
-    def is_compressed(self):
-        return self.compressed
-
-    def get_pubkey(self):
-        """Compute an ECPubKey object for this secret key."""
-        assert(self.valid)
-        ret = ECPubKey()
-        p = SECP256K1.mul([(SECP256K1_G, self.secret)])
-        ret.p = p
-        ret.valid = True
-        ret.compressed = self.compressed
-        return ret
-
-    def sign_ecdsa(self, msg, low_s=True):
-        """Construct a DER-encoded ECDSA signature with this key.
-
-        See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
-        ECDSA signer algorithm."""
-        assert(self.valid)
-        z = int.from_bytes(msg, 'big')
-        # Note: no RFC6979, but a simple random nonce (some tests rely on distinct transactions for the same operation)
-        k = random.randrange(1, SECP256K1_ORDER)
-        R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, k)]))
-        r = R[0] % SECP256K1_ORDER
-        s = (modinv(k, SECP256K1_ORDER) * (z + self.secret * r)) % SECP256K1_ORDER
-        if low_s and s > SECP256K1_ORDER_HALF:
-            s = SECP256K1_ORDER - s
-        # Represent in DER format. The byte representations of r and s have
-        # length rounded up (255 bits becomes 32 bytes and 256 bits becomes 33
-        # bytes).
-        rb = r.to_bytes((r.bit_length() + 8) // 8, 'big')
-        sb = s.to_bytes((s.bit_length() + 8) // 8, 'big')
-        return b'\x30' + bytes([4 + len(rb) + len(sb), 2, len(rb)]) + rb + bytes([2, len(sb)]) + sb

basicswap/contrib/test_framework/descriptors.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+# Copyright (c) 2019 Pieter Wuille
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Utility functions related to output descriptors"""
+
+import re
+
+INPUT_CHARSET = "0123456789()[],'/*abcdefgh@:$%{}IJKLMNOPQRSTUVWXYZ&+-.;<=>?!^_|~ijklmnopqrstuvwxyzABCDEFGH`#\"\\ "
+CHECKSUM_CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"
+GENERATOR = [0xf5dee51989, 0xa9fdca3312, 0x1bab10e32d, 0x3706b1677a, 0x644d626ffd]
+
+def descsum_polymod(symbols):
+    """Internal function that computes the descriptor checksum."""
+    chk = 1
+    for value in symbols:
+        top = chk >> 35
+        chk = (chk & 0x7ffffffff) << 5 ^ value
+        for i in range(5):
+            chk ^= GENERATOR[i] if ((top >> i) & 1) else 0
+    return chk
+
+def descsum_expand(s):
+    """Internal function that does the character to symbol expansion"""
+    groups = []
+    symbols = []
+    for c in s:
+        if not c in INPUT_CHARSET:
+            return None
+        v = INPUT_CHARSET.find(c)
+        symbols.append(v & 31)
+        groups.append(v >> 5)
+        if len(groups) == 3:
+            symbols.append(groups[0] * 9 + groups[1] * 3 + groups[2])
+            groups = []
+    if len(groups) == 1:
+        symbols.append(groups[0])
+    elif len(groups) == 2:
+        symbols.append(groups[0] * 3 + groups[1])
+    return symbols
+
+def descsum_create(s):
+    """Add a checksum to a descriptor without"""
+    symbols = descsum_expand(s) + [0, 0, 0, 0, 0, 0, 0, 0]
+    checksum = descsum_polymod(symbols) ^ 1
+    return s + '#' + ''.join(CHECKSUM_CHARSET[(checksum >> (5 * (7 - i))) & 31] for i in range(8))
+
+def descsum_check(s, require=True):
+    """Verify that the checksum is correct in a descriptor"""
+    if not '#' in s:
+        return not require
+    if s[-9] != '#':
+        return False
+    if not all(x in CHECKSUM_CHARSET for x in s[-8:]):
+        return False
+    symbols = descsum_expand(s[:-9]) + [CHECKSUM_CHARSET.find(x) for x in s[-8:]]
+    return descsum_polymod(symbols) == 1
+
+def drop_origins(s):
+    '''Drop the key origins from a descriptor'''
+    desc = re.sub(r'\[.+?\]', '', s)
+    if '#' in s:
+        desc = desc[:desc.index('#')]
+    return descsum_create(desc)

basicswap/contrib/test_framework/key.py

@@ -1,393 +0,0 @@
-# Copyright (c) 2019 Pieter Wuille
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-"""Test-only secp256k1 elliptic curve implementation
-
-WARNING: This code is slow, uses bad randomness, does not properly protect
-keys, and is trivially vulnerable to side channel attacks. Do not use for
-anything but tests."""
-import random
-
-def modinv(a, n):
-    """Compute the modular inverse of a modulo n
-
-    See https://en.wikipedia.org/wiki/Extended_Euclidean_algorithm#Modular_integers.
-    """
-    t1, t2 = 0, 1
-    r1, r2 = n, a
-    while r2 != 0:
-        q = r1 // r2
-        t1, t2 = t2, t1 - q * t2
-        r1, r2 = r2, r1 - q * r2
-    if r1 > 1:
-        return None
-    if t1 < 0:
-        t1 += n
-    return t1
-
-def jacobi_symbol(n, k):
-    """Compute the Jacobi symbol of n modulo k
-
-    See http://en.wikipedia.org/wiki/Jacobi_symbol
-
-    For our application k is always prime, so this is the same as the Legendre symbol."""
-    assert k > 0 and k & 1, "jacobi symbol is only defined for positive odd k"
-    n %= k
-    t = 0
-    while n != 0:
-        while n & 1 == 0:
-            n >>= 1
-            r = k & 7
-            t ^= (r == 3 or r == 5)
-        n, k = k, n
-        t ^= (n & k & 3 == 3)
-        n = n % k
-    if k == 1:
-        return -1 if t else 1
-    return 0
-
-def modsqrt(a, p):
-    """Compute the square root of a modulo p when p % 4 = 3.
-
-    The Tonelli-Shanks algorithm can be used. See https://en.wikipedia.org/wiki/Tonelli-Shanks_algorithm
-
-    Limiting this function to only work for p % 4 = 3 means we don't need to
-    iterate through the loop. The highest n such that p - 1 = 2^n Q with Q odd
-    is n = 1. Therefore Q = (p-1)/2 and sqrt = a^((Q+1)/2) = a^((p+1)/4)
-
-    secp256k1's is defined over field of size 2**256 - 2**32 - 977, which is 3 mod 4.
-    """
-    if p % 4 != 3:
-        raise NotImplementedError("modsqrt only implemented for p % 4 = 3")
-    sqrt = pow(a, (p + 1)//4, p)
-    if pow(sqrt, 2, p) == a % p:
-        return sqrt
-    return None
-
-class EllipticCurve:
-    def __init__(self, p, a, b):
-        """Initialize elliptic curve y^2 = x^3 + a*x + b over GF(p)."""
-        self.p = p
-        self.a = a % p
-        self.b = b % p
-
-    def affine(self, p1):
-        """Convert a Jacobian point tuple p1 to affine form, or None if at infinity.
-
-        An affine point is represented as the Jacobian (x, y, 1)"""
-        x1, y1, z1 = p1
-        if z1 == 0:
-            return None
-        inv = modinv(z1, self.p)
-        inv_2 = (inv**2) % self.p
-        inv_3 = (inv_2 * inv) % self.p
-        return ((inv_2 * x1) % self.p, (inv_3 * y1) % self.p, 1)
-
-    def negate(self, p1):
-        """Negate a Jacobian point tuple p1."""
-        x1, y1, z1 = p1
-        return (x1, (self.p - y1) % self.p, z1)
-
-    def on_curve(self, p1):
-        """Determine whether a Jacobian tuple p is on the curve (and not infinity)"""
-        x1, y1, z1 = p1
-        z2 = pow(z1, 2, self.p)
-        z4 = pow(z2, 2, self.p)
-        return z1 != 0 and (pow(x1, 3, self.p) + self.a * x1 * z4 + self.b * z2 * z4 - pow(y1, 2, self.p)) % self.p == 0
-
-    def is_x_coord(self, x):
-        """Test whether x is a valid X coordinate on the curve."""
-        x_3 = pow(x, 3, self.p)
-        return jacobi_symbol(x_3 + self.a * x + self.b, self.p) != -1
-
-    def lift_x(self, x):
-        """Given an X coordinate on the curve, return a corresponding affine point."""
-        x_3 = pow(x, 3, self.p)
-        v = x_3 + self.a * x + self.b
-        y = modsqrt(v, self.p)
-        if y is None:
-            return None
-        return (x, y, 1)
-
-    def double(self, p1):
-        """Double a Jacobian tuple p1
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Doubling"""
-        x1, y1, z1 = p1
-        if z1 == 0:
-            return (0, 1, 0)
-        y1_2 = (y1**2) % self.p
-        y1_4 = (y1_2**2) % self.p
-        x1_2 = (x1**2) % self.p
-        s = (4*x1*y1_2) % self.p
-        m = 3*x1_2
-        if self.a:
-            m += self.a * pow(z1, 4, self.p)
-        m = m % self.p
-        x2 = (m**2 - 2*s) % self.p
-        y2 = (m*(s - x2) - 8*y1_4) % self.p
-        z2 = (2*y1*z1) % self.p
-        return (x2, y2, z2)
-
-    def add_mixed(self, p1, p2):
-        """Add a Jacobian tuple p1 and an affine tuple p2
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition (with affine point)"""
-        x1, y1, z1 = p1
-        x2, y2, z2 = p2
-        assert(z2 == 1)
-        # Adding to the point at infinity is a no-op
-        if z1 == 0:
-            return p2
-        z1_2 = (z1**2) % self.p
-        z1_3 = (z1_2 * z1) % self.p
-        u2 = (x2 * z1_2) % self.p
-        s2 = (y2 * z1_3) % self.p
-        if x1 == u2:
-            if (y1 != s2):
-                # p1 and p2 are inverses. Return the point at infinity.
-                return (0, 1, 0)
-            # p1 == p2. The formulas below fail when the two points are equal.
-            return self.double(p1)
-        h = u2 - x1
-        r = s2 - y1
-        h_2 = (h**2) % self.p
-        h_3 = (h_2 * h) % self.p
-        u1_h_2 = (x1 * h_2) % self.p
-        x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
-        y3 = (r*(u1_h_2 - x3) - y1*h_3) % self.p
-        z3 = (h*z1) % self.p
-        return (x3, y3, z3)
-
-    def add(self, p1, p2):
-        """Add two Jacobian tuples p1 and p2
-
-        See https://en.wikibooks.org/wiki/Cryptography/Prime_Curve/Jacobian_Coordinates - Point Addition"""
-        x1, y1, z1 = p1
-        x2, y2, z2 = p2
-        # Adding the point at infinity is a no-op
-        if z1 == 0:
-            return p2
-        if z2 == 0:
-            return p1
-        # Adding an Affine to a Jacobian is more efficient since we save field multiplications and squarings when z = 1
-        if z1 == 1:
-            return self.add_mixed(p2, p1)
-        if z2 == 1:
-            return self.add_mixed(p1, p2)
-        z1_2 = (z1**2) % self.p
-        z1_3 = (z1_2 * z1) % self.p
-        z2_2 = (z2**2) % self.p
-        z2_3 = (z2_2 * z2) % self.p
-        u1 = (x1 * z2_2) % self.p
-        u2 = (x2 * z1_2) % self.p
-        s1 = (y1 * z2_3) % self.p
-        s2 = (y2 * z1_3) % self.p
-        if u1 == u2:
-            if (s1 != s2):
-                # p1 and p2 are inverses. Return the point at infinity.
-                return (0, 1, 0)
-            # p1 == p2. The formulas below fail when the two points are equal.
-            return self.double(p1)
-        h = u2 - u1
-        r = s2 - s1
-        h_2 = (h**2) % self.p
-        h_3 = (h_2 * h) % self.p
-        u1_h_2 = (u1 * h_2) % self.p
-        x3 = (r**2 - h_3 - 2*u1_h_2) % self.p
-        y3 = (r*(u1_h_2 - x3) - s1*h_3) % self.p
-        z3 = (h*z1*z2) % self.p
-        return (x3, y3, z3)
-
-    def mul(self, ps):
-        """Compute a (multi) point multiplication
-
-        ps is a list of (Jacobian tuple, scalar) pairs.
-        """
-        r = (0, 1, 0)
-        for i in range(255, -1, -1):
-            r = self.double(r)
-            for (p, n) in ps:
-                if ((n >> i) & 1):
-                    r = self.add(r, p)
-        return r
-
-SECP256K1 = EllipticCurve(2**256 - 2**32 - 977, 0, 7)
-SECP256K1_G = (0x79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798, 0x483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8, 1)
-SECP256K1_ORDER = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141
-SECP256K1_ORDER_HALF = SECP256K1_ORDER // 2
-
-class ECPubKey():
-    """A secp256k1 public key"""
-
-    def __init__(self):
-        """Construct an uninitialized public key"""
-        self.valid = False
-
-    def set_int(self, x, y):
-        p = (x, y, 1)
-        self.valid = SECP256K1.on_curve(p)
-        if self.valid:
-            self.p = p
-            self.compressed = False
-
-    def set(self, data):
-        """Construct a public key from a serialization in compressed or uncompressed format"""
-        if (len(data) == 65 and data[0] == 0x04):
-            p = (int.from_bytes(data[1:33], 'big'), int.from_bytes(data[33:65], 'big'), 1)
-            self.valid = SECP256K1.on_curve(p)
-            if self.valid:
-                self.p = p
-                self.compressed = False
-        elif (len(data) == 33 and (data[0] == 0x02 or data[0] == 0x03)):
-            x = int.from_bytes(data[1:33], 'big')
-            if SECP256K1.is_x_coord(x):
-                p = SECP256K1.lift_x(x)
-                # if the oddness of the y co-ord isn't correct, find the other
-                # valid y
-                if (p[1] & 1) != (data[0] & 1):
-                    p = SECP256K1.negate(p)
-                self.p = p
-                self.valid = True
-                self.compressed = True
-            else:
-                self.valid = False
-        else:
-            self.valid = False
-
-    @property
-    def is_compressed(self):
-        return self.compressed
-
-    @property
-    def is_valid(self):
-        return self.valid
-
-    def get_bytes(self):
-        assert(self.valid)
-        p = SECP256K1.affine(self.p)
-        if p is None:
-            return None
-        if self.compressed:
-            return bytes([0x02 + (p[1] & 1)]) + p[0].to_bytes(32, 'big')
-        else:
-            return bytes([0x04]) + p[0].to_bytes(32, 'big') + p[1].to_bytes(32, 'big')
-
-    def verify_ecdsa(self, sig, msg, low_s=True):
-        """Verify a strictly DER-encoded ECDSA signature against this pubkey.
-
-        See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
-        ECDSA verifier algorithm"""
-        assert(self.valid)
-
-        # Extract r and s from the DER formatted signature. Return false for
-        # any DER encoding errors.
-        if (sig[1] + 2 != len(sig)):
-            return False
-        if (len(sig) < 4):
-            return False
-        if (sig[0] != 0x30):
-            return False
-        if (sig[2] != 0x02):
-            return False
-        rlen = sig[3]
-        if (len(sig) < 6 + rlen):
-            return False
-        if rlen < 1 or rlen > 33:
-            return False
-        if sig[4] >= 0x80:
-            return False
-        if (rlen > 1 and (sig[4] == 0) and not (sig[5] & 0x80)):
-            return False
-        r = int.from_bytes(sig[4:4+rlen], 'big')
-        if (sig[4+rlen] != 0x02):
-            return False
-        slen = sig[5+rlen]
-        if slen < 1 or slen > 33:
-            return False
-        if (len(sig) != 6 + rlen + slen):
-            return False
-        if sig[6+rlen] >= 0x80:
-            return False
-        if (slen > 1 and (sig[6+rlen] == 0) and not (sig[7+rlen] & 0x80)):
-            return False
-        s = int.from_bytes(sig[6+rlen:6+rlen+slen], 'big')
-
-        # Verify that r and s are within the group order
-        if r < 1 or s < 1 or r >= SECP256K1_ORDER or s >= SECP256K1_ORDER:
-            return False
-        if low_s and s >= SECP256K1_ORDER_HALF:
-            return False
-        z = int.from_bytes(msg, 'big')
-
-        # Run verifier algorithm on r, s
-        w = modinv(s, SECP256K1_ORDER)
-        u1 = z*w % SECP256K1_ORDER
-        u2 = r*w % SECP256K1_ORDER
-        R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, u1), (self.p, u2)]))
-        if R is None or R[0] != r:
-            return False
-        return True
-
-class ECKey():
-    """A secp256k1 private key"""
-
-    def __init__(self):
-        self.valid = False
-
-    def set(self, secret, compressed):
-        """Construct a private key object with given 32-byte secret and compressed flag."""
-        assert(len(secret) == 32)
-        secret = int.from_bytes(secret, 'big')
-        self.valid = (secret > 0 and secret < SECP256K1_ORDER)
-        if self.valid:
-            self.secret = secret
-            self.compressed = compressed
-
-    def generate(self, compressed=True):
-        """Generate a random private key (compressed or uncompressed)."""
-        self.set(random.randrange(1, SECP256K1_ORDER).to_bytes(32, 'big'), compressed)
-
-    def get_bytes(self):
-        """Retrieve the 32-byte representation of this key."""
-        assert(self.valid)
-        return self.secret.to_bytes(32, 'big')
-
-    @property
-    def is_valid(self):
-        return self.valid
-
-    @property
-    def is_compressed(self):
-        return self.compressed
-
-    def get_pubkey(self):
-        """Compute an ECPubKey object for this secret key."""
-        assert(self.valid)
-        ret = ECPubKey()
-        p = SECP256K1.mul([(SECP256K1_G, self.secret)])
-        ret.p = p
-        ret.valid = True
-        ret.compressed = self.compressed
-        return ret
-
-    def sign_ecdsa(self, msg, low_s=True):
-        """Construct a DER-encoded ECDSA signature with this key.
-
-        See https://en.wikipedia.org/wiki/Elliptic_Curve_Digital_Signature_Algorithm for the
-        ECDSA signer algorithm."""
-        assert(self.valid)
-        z = int.from_bytes(msg, 'big')
-        # Note: no RFC6979, but a simple random nonce (some tests rely on distinct transactions for the same operation)
-        k = random.randrange(1, SECP256K1_ORDER)
-        R = SECP256K1.affine(SECP256K1.mul([(SECP256K1_G, k)]))
-        r = R[0] % SECP256K1_ORDER
-        s = (modinv(k, SECP256K1_ORDER) * (z + self.secret * r)) % SECP256K1_ORDER
-        if low_s and s > SECP256K1_ORDER_HALF:
-            s = SECP256K1_ORDER - s
-        # Represent in DER format. The byte representations of r and s have
-        # length rounded up (255 bits becomes 32 bytes and 256 bits becomes 33
-        # bytes).
-        rb = r.to_bytes((r.bit_length() + 8) // 8, 'big')
-        sb = s.to_bytes((s.bit_length() + 8) // 8, 'big')
-        return b'\x30' + bytes([4 + len(rb) + len(sb), 2, len(rb)]) + rb + bytes([2, len(sb)]) + sb

basicswap/contrib/test_framework/util.py

@@ -5,20 +5,22 @@
 """Helpful routines for regression testing."""
 
 from base64 import b64encode
-from binascii import unhexlify
 from decimal import Decimal, ROUND_DOWN
 from subprocess import CalledProcessError
+import hashlib
 import inspect
 import json
 import logging
 import os
-import random
+import pathlib
+import platform
 import re
 import time
 
 from . import coverage
 from .authproxy import AuthServiceProxy, JSONRPCException
-from io import BytesIO
+from collections.abc import Callable
+from typing import Optional
 
 logger = logging.getLogger("TestFramework.utils")
 
@@ -28,23 +30,46 @@ logger = logging.getLogger("TestFramework.utils")
 
 def assert_approx(v, vexp, vspan=0.00001):
     """Assert that `v` is within `vspan` of `vexp`"""
+    if isinstance(v, Decimal) or isinstance(vexp, Decimal):
+        v=Decimal(v)
+        vexp=Decimal(vexp)
+        vspan=Decimal(vspan)
     if v < vexp - vspan:
         raise AssertionError("%s < [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
     if v > vexp + vspan:
         raise AssertionError("%s > [%s..%s]" % (str(v), str(vexp - vspan), str(vexp + vspan)))
 
 
-def assert_fee_amount(fee, tx_size, fee_per_kB):
-    """Assert the fee was in range"""
-    target_fee = round(tx_size * fee_per_kB / 1000, 8)
+def assert_fee_amount(fee, tx_size, feerate_BTC_kvB):
+    """Assert the fee is in range."""
+    assert isinstance(tx_size, int)
+    target_fee = get_fee(tx_size, feerate_BTC_kvB)
     if fee < target_fee:
         raise AssertionError("Fee of %s BTC too low! (Should be %s BTC)" % (str(fee), str(target_fee)))
     # allow the wallet's estimation to be at most 2 bytes off
-    if fee > (tx_size + 2) * fee_per_kB / 1000:
+    high_fee = get_fee(tx_size + 2, feerate_BTC_kvB)
+    if fee > high_fee:
         raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)" % (str(fee), str(target_fee)))
 
 
+def summarise_dict_differences(thing1, thing2):
+    if not isinstance(thing1, dict) or not isinstance(thing2, dict):
+        return thing1, thing2
+    d1, d2 = {}, {}
+    for k in sorted(thing1.keys()):
+        if k not in thing2:
+            d1[k] = thing1[k]
+        elif thing1[k] != thing2[k]:
+            d1[k], d2[k] = summarise_dict_differences(thing1[k], thing2[k])
+    for k in sorted(thing2.keys()):
+        if k not in thing1:
+            d2[k] = thing2[k]
+    return d1, d2
+
 def assert_equal(thing1, thing2, *args):
+    if thing1 != thing2 and not args and isinstance(thing1, dict) and isinstance(thing2, dict):
+        d1,d2 = summarise_dict_differences(thing1, thing2)
+        raise AssertionError("not(%s == %s)\n  in particular not(%s == %s)" % (thing1, thing2, d1, d2))
     if thing1 != thing2 or any(thing1 != arg for arg in args):
         raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
 
@@ -79,7 +104,7 @@ def assert_raises_message(exc, message, fun, *args, **kwds):
         raise AssertionError("No exception raised")
 
 
-def assert_raises_process_error(returncode, output, fun, *args, **kwds):
+def assert_raises_process_error(returncode: int, output: str, fun: Callable, *args, **kwds):
     """Execute a process and asserts the process return code and output.
 
     Calls function `fun` with arguments `args` and `kwds`. Catches a CalledProcessError
@@ -87,9 +112,9 @@ def assert_raises_process_error(returncode, output, fun, *args, **kwds):
     no CalledProcessError was raised or if the return code and output are not as expected.
 
     Args:
-        returncode (int): the process return code.
-        output (string): [a substring of] the process output.
-        fun (function): the function to call. This should execute a process.
+        returncode: the process return code.
+        output: [a substring of] the process output.
+        fun: the function to call. This should execute a process.
         args*: positional arguments for the function.
         kwds**: named arguments for the function.
     """
@@ -104,7 +129,7 @@ def assert_raises_process_error(returncode, output, fun, *args, **kwds):
         raise AssertionError("No exception raised")
 
 
-def assert_raises_rpc_error(code, message, fun, *args, **kwds):
+def assert_raises_rpc_error(code: Optional[int], message: Optional[str], fun: Callable, *args, **kwds):
     """Run an RPC and verify that a specific JSONRPC exception code and message is raised.
 
     Calls function `fun` with arguments `args` and `kwds`. Catches a JSONRPCException
@@ -112,11 +137,11 @@ def assert_raises_rpc_error(code, message, fun, *args, **kwds):
     no JSONRPCException was raised or if the error code/message are not as expected.
 
     Args:
-        code (int), optional: the error code returned by the RPC call (defined
-            in src/rpc/protocol.h). Set to None if checking the error code is not required.
-        message (string), optional: [a substring of] the error string returned by the
-            RPC call. Set to None if checking the error string is not required.
-        fun (function): the function to call. This should be the name of an RPC.
+        code: the error code returned by the RPC call (defined in src/rpc/protocol.h).
+            Set to None if checking the error code is not required.
+        message: [a substring of] the error string returned by the RPC call.
+            Set to None if checking the error string is not required.
+        fun: the function to call. This should be the name of an RPC.
         args*: positional arguments for the function.
         kwds**: named arguments for the function.
     """
@@ -203,29 +228,45 @@ def check_json_precision():
         raise RuntimeError("JSON encode/decode loses precision")
 
 
-def EncodeDecimal(o):
-    if isinstance(o, Decimal):
-        return str(o)
-    raise TypeError(repr(o) + " is not JSON serializable")
-
-
 def count_bytes(hex_string):
     return len(bytearray.fromhex(hex_string))
 
 
-def hex_str_to_bytes(hex_str):
-    return unhexlify(hex_str.encode('ascii'))
-
-
 def str_to_b64str(string):
     return b64encode(string.encode('utf-8')).decode('ascii')
 
 
+def ceildiv(a, b):
+    """
+    Divide 2 ints and round up to next int rather than round down
+    Implementation requires python integers, which have a // operator that does floor division.
+    Other types like decimal.Decimal whose // operator truncates towards 0 will not work.
+    """
+    assert isinstance(a, int)
+    assert isinstance(b, int)
+    return -(-a // b)
+
+
+def get_fee(tx_size, feerate_btc_kvb):
+    """Calculate the fee in BTC given a feerate is BTC/kvB. Reflects CFeeRate::GetFee"""
+    feerate_sat_kvb = int(feerate_btc_kvb * Decimal(1e8)) # Fee in sat/kvb as an int to avoid float precision errors
+    target_fee_sat = ceildiv(feerate_sat_kvb * tx_size, 1000) # Round calculated fee up to nearest sat
+    return target_fee_sat / Decimal(1e8) # Return result in  BTC
+
+
 def satoshi_round(amount):
     return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
 
 
-def wait_until(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=None, timeout_factor=1.0):
+def wait_until_helper_internal(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=None, timeout_factor=1.0):
+    """Sleep until the predicate resolves to be True.
+
+    Warning: Note that this method is not recommended to be used in tests as it is
+    not aware of the context of the test framework. Using the `wait_until()` members
+    from `BitcoinTestFramework` or `P2PInterface` class ensures the timeout is
+    properly scaled. Furthermore, `wait_until()` from `P2PInterface` class in
+    `p2p.py` has a preset lock.
+    """
     if attempts == float('inf') and timeout == float('inf'):
         timeout = 60
     timeout = timeout * timeout_factor
@@ -253,6 +294,16 @@ def wait_until(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=N
     raise RuntimeError('Unreachable')
 
 
+def sha256sum_file(filename):
+    h = hashlib.sha256()
+    with open(filename, 'rb') as f:
+        d = f.read(4096)
+        while len(d) > 0:
+            h.update(d)
+            d = f.read(4096)
+    return h.digest()
+
+
 # RPC/P2P connection constants and functions
 ############################################
 
@@ -269,15 +320,15 @@ class PortSeed:
     n = None
 
 
-def get_rpc_proxy(url, node_number, *, timeout=None, coveragedir=None):
+def get_rpc_proxy(url: str, node_number: int, *, timeout: Optional[int]=None, coveragedir: Optional[str]=None) -> coverage.AuthServiceProxyWrapper:
     """
     Args:
-        url (str): URL of the RPC server to call
-        node_number (int): the node number (or id) that this calls to
+        url: URL of the RPC server to call
+        node_number: the node number (or id) that this calls to
 
     Kwargs:
-        timeout (int): HTTP timeout in seconds
-        coveragedir (str): Directory
+        timeout: HTTP timeout in seconds
+        coveragedir: Directory
 
     Returns:
         AuthServiceProxy. convenience object for making RPC calls.
@@ -288,11 +339,10 @@ def get_rpc_proxy(url, node_number, *, timeout=None, coveragedir=None):
         proxy_kwargs['timeout'] = int(timeout)
 
     proxy = AuthServiceProxy(url, **proxy_kwargs)
-    proxy.url = url  # store URL on proxy for info
 
     coverage_logfile = coverage.get_filename(coveragedir, node_number) if coveragedir else None
 
-    return coverage.AuthServiceProxyWrapper(proxy, coverage_logfile)
+    return coverage.AuthServiceProxyWrapper(proxy, url, coverage_logfile)
 
 
 def p2p_port(n):
@@ -321,38 +371,76 @@ def rpc_url(datadir, i, chain, rpchost):
 ################
 
 
-def initialize_datadir(dirname, n, chain):
+def initialize_datadir(dirname, n, chain, disable_autoconnect=True):
     datadir = get_datadir_path(dirname, n)
     if not os.path.isdir(datadir):
         os.makedirs(datadir)
-    # Translate chain name to config name
-    if chain == 'testnet3':
-        chain_name_conf_arg = 'testnet'
-        chain_name_conf_section = 'test'
-    else:
-        chain_name_conf_arg = chain
-        chain_name_conf_section = chain
-    with open(os.path.join(datadir, "particl.conf"), 'w', encoding='utf8') as f:
-        f.write("{}=1\n".format(chain_name_conf_arg))
-        f.write("[{}]\n".format(chain_name_conf_section))
-        f.write("port=" + str(p2p_port(n)) + "\n")
-        f.write("rpcport=" + str(rpc_port(n)) + "\n")
-        f.write("fallbackfee=0.0002\n")
-        f.write("server=1\n")
-        f.write("keypool=1\n")
-        f.write("discover=0\n")
-        f.write("dnsseed=0\n")
-        f.write("listenonion=0\n")
-        f.write("printtoconsole=0\n")
-        f.write("upnp=0\n")
-        f.write("shrinkdebugfile=0\n")
+    write_config(os.path.join(datadir, "particl.conf"), n=n, chain=chain, disable_autoconnect=disable_autoconnect)
     os.makedirs(os.path.join(datadir, 'stderr'), exist_ok=True)
     os.makedirs(os.path.join(datadir, 'stdout'), exist_ok=True)
     return datadir
 
 
+def write_config(config_path, *, n, chain, extra_config="", disable_autoconnect=True):
+    # Translate chain subdirectory name to config name
+    if chain == 'testnet':
+        chain_name_conf_arg = 'testnet'
+        chain_name_conf_section = 'test'
+    else:
+        chain_name_conf_arg = chain
+        chain_name_conf_section = chain
+    with open(config_path, 'w', encoding='utf8') as f:
+        if chain_name_conf_arg:
+            f.write("{}=1\n".format(chain_name_conf_arg))
+        if chain_name_conf_section:
+            f.write("[{}]\n".format(chain_name_conf_section))
+        f.write("port=" + str(p2p_port(n)) + "\n")
+        f.write("rpcport=" + str(rpc_port(n)) + "\n")
+        # Disable server-side timeouts to avoid intermittent issues
+        f.write("rpcservertimeout=99000\n")
+        f.write("rpcdoccheck=1\n")
+        f.write("fallbackfee=0.0002\n")
+        f.write("server=1\n")
+        f.write("keypool=1\n")
+        f.write("discover=0\n")
+        f.write("dnsseed=0\n")
+        f.write("fixedseeds=0\n")
+        f.write("listenonion=0\n")
+        # Increase peertimeout to avoid disconnects while using mocktime.
+        # peertimeout is measured in mock time, so setting it large enough to
+        # cover any duration in mock time is sufficient. It can be overridden
+        # in tests.
+        f.write("peertimeout=999999999\n")
+        f.write("printtoconsole=0\n")
+        f.write("upnp=0\n")
+        f.write("natpmp=0\n")
+        f.write("shrinkdebugfile=0\n")
+        f.write("deprecatedrpc=create_bdb\n")  # Required to run the tests
+        # To improve SQLite wallet performance so that the tests don't timeout, use -unsafesqlitesync
+        f.write("unsafesqlitesync=1\n")
+        if disable_autoconnect:
+            f.write("connect=0\n")
+        f.write(extra_config)
+
+
 def get_datadir_path(dirname, n):
-    return os.path.join(dirname, "node" + str(n))
+    return pathlib.Path(dirname) / f"node{n}"
+
+
+def get_temp_default_datadir(temp_dir: pathlib.Path) -> tuple[dict, pathlib.Path]:
+    """Return os-specific environment variables that can be set to make the
+    GetDefaultDataDir() function return a datadir path under the provided
+    temp_dir, as well as the complete path it would return."""
+    if platform.system() == "Windows":
+        env = dict(APPDATA=str(temp_dir))
+        datadir = temp_dir / "Particl"
+    else:
+        env = dict(HOME=str(temp_dir))
+        if platform.system() == "Darwin":
+            datadir = temp_dir / "Library/Application Support/Particl"
+        else:
+            datadir = temp_dir / ".particl"
+    return env, datadir
 
 
 def append_config(datadir, options):
@@ -395,7 +483,7 @@ def delete_cookie_file(datadir, chain):
 
 def softfork_active(node, key):
     """Return whether a softfork is active."""
-    return node.getblockchaininfo()['softforks'][key]['active']
+    return node.getdeploymentinfo()['deployments'][key]['active']
 
 
 def set_node_times(nodes, t):
@@ -403,208 +491,51 @@ def set_node_times(nodes, t):
         node.setmocktime(t)
 
 
-def disconnect_nodes(from_connection, node_num):
-    def get_peer_ids():
-        result = []
-        for peer in from_connection.getpeerinfo():
-            if "testnode{}".format(node_num) in peer['subver']:
-                result.append(peer['id'])
-        return result
-
-    peer_ids = get_peer_ids()
-    if not peer_ids:
-        logger.warning("disconnect_nodes: {} and {} were not connected".format(
-            from_connection.index,
-            node_num,
-        ))
-        return
-    for peer_id in peer_ids:
-        try:
-            from_connection.disconnectnode(nodeid=peer_id)
-        except JSONRPCException as e:
-            # If this node is disconnected between calculating the peer id
-            # and issuing the disconnect, don't worry about it.
-            # This avoids a race condition if we're mass-disconnecting peers.
-            if e.error['code'] != -29:  # RPC_CLIENT_NODE_NOT_CONNECTED
-                raise
-
-    # wait to disconnect
-    wait_until(lambda: not get_peer_ids(), timeout=5)
-
-
-def connect_nodes(from_connection, node_num):
-    ip_port = "127.0.0.1:" + str(p2p_port(node_num))
-    from_connection.addnode(ip_port, "onetry")
-    # poll until version handshake complete to avoid race conditions
-    # with transaction relaying
-    # See comments in net_processing:
-    # * Must have a version message before anything else
-    # * Must have a verack message before anything else
-    wait_until(lambda: all(peer['version'] != 0 for peer in from_connection.getpeerinfo()))
-    wait_until(lambda: all(peer['bytesrecv_per_msg'].pop('verack', 0) == 24 for peer in from_connection.getpeerinfo()))
+def check_node_connections(*, node, num_in, num_out):
+    info = node.getnetworkinfo()
+    assert_equal(info["connections_in"], num_in)
+    assert_equal(info["connections_out"], num_out)
 
 
 # Transaction/Block functions
 #############################
 
 
-def find_output(node, txid, amount, *, blockhash=None):
-    """
-    Return index to output of txid with value amount
-    Raises exception if there is none.
-    """
-    txdata = node.getrawtransaction(txid, 1, blockhash)
-    for i in range(len(txdata["vout"])):
-        if txdata["vout"][i]["value"] == amount:
-            return i
-    raise RuntimeError("find_output txid %s : %s not found" % (txid, str(amount)))
-
-
-def gather_inputs(from_node, amount_needed, confirmations_required=1):
-    """
-    Return a random set of unspent txouts that are enough to pay amount_needed
-    """
-    assert confirmations_required >= 0
-    utxo = from_node.listunspent(confirmations_required)
-    random.shuffle(utxo)
-    inputs = []
-    total_in = Decimal("0.00000000")
-    while total_in < amount_needed and len(utxo) > 0:
-        t = utxo.pop()
-        total_in += t["amount"]
-        inputs.append({"txid": t["txid"], "vout": t["vout"], "address": t["address"]})
-    if total_in < amount_needed:
-        raise RuntimeError("Insufficient funds: need %d, have %d" % (amount_needed, total_in))
-    return (total_in, inputs)
-
-
-def make_change(from_node, amount_in, amount_out, fee):
-    """
-    Create change output(s), return them
-    """
-    outputs = {}
-    amount = amount_out + fee
-    change = amount_in - amount
-    if change > amount * 2:
-        # Create an extra change output to break up big inputs
-        change_address = from_node.getnewaddress()
-        # Split change in two, being careful of rounding:
-        outputs[change_address] = Decimal(change / 2).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
-        change = amount_in - amount - outputs[change_address]
-    if change > 0:
-        outputs[from_node.getnewaddress()] = change
-    return outputs
-
-
-def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
-    """
-    Create a random transaction.
-    Returns (txid, hex-encoded-transaction-data, fee)
-    """
-    from_node = random.choice(nodes)
-    to_node = random.choice(nodes)
-    fee = min_fee + fee_increment * random.randint(0, fee_variants)
-
-    (total_in, inputs) = gather_inputs(from_node, amount + fee)
-    outputs = make_change(from_node, total_in, amount, fee)
-    outputs[to_node.getnewaddress()] = float(amount)
-
-    rawtx = from_node.createrawtransaction(inputs, outputs)
-    signresult = from_node.signrawtransactionwithwallet(rawtx)
-    txid = from_node.sendrawtransaction(signresult["hex"], 0)
-
-    return (txid, signresult["hex"], fee)
-
-
-# Helper to create at least "count" utxos
-# Pass in a fee that is sufficient for relay and mining new transactions.
-def create_confirmed_utxos(fee, node, count):
-    to_generate = int(0.5 * count) + 101
-    while to_generate > 0:
-        node.generate(min(25, to_generate))
-        to_generate -= 25
-    utxos = node.listunspent()
-    iterations = count - len(utxos)
-    addr1 = node.getnewaddress()
-    addr2 = node.getnewaddress()
-    if iterations <= 0:
-        return utxos
-    for i in range(iterations):
-        t = utxos.pop()
-        inputs = []
-        inputs.append({"txid": t["txid"], "vout": t["vout"]})
-        outputs = {}
-        send_value = t['amount'] - fee
-        outputs[addr1] = satoshi_round(send_value / 2)
-        outputs[addr2] = satoshi_round(send_value / 2)
-        raw_tx = node.createrawtransaction(inputs, outputs)
-        signed_tx = node.signrawtransactionwithwallet(raw_tx)["hex"]
-        node.sendrawtransaction(signed_tx)
-
-    while (node.getmempoolinfo()['size'] > 0):
-        node.generate(1)
-
-    utxos = node.listunspent()
-    assert len(utxos) >= count
-    return utxos
-
-
 # Create large OP_RETURN txouts that can be appended to a transaction
-# to make it large (helper for constructing large transactions).
+# to make it large (helper for constructing large transactions). The
+# total serialized size of the txouts is about 66k vbytes.
 def gen_return_txouts():
-    # Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create
-    # So we have big transactions (and therefore can't fit very many into each block)
-    # create one script_pubkey
-    script_pubkey = "6a4d0200"  # OP_RETURN OP_PUSH2 512 bytes
-    for i in range(512):
-        script_pubkey = script_pubkey + "01"
-    # concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change
-    txouts = []
     from .messages import CTxOut
-    txout = CTxOut()
-    txout.nValue = 0
-    txout.scriptPubKey = hex_str_to_bytes(script_pubkey)
-    for k in range(128):
-        txouts.append(txout)
+    from .script import CScript, OP_RETURN
+    txouts = [CTxOut(nValue=0, scriptPubKey=CScript([OP_RETURN, b'\x01'*67437]))]
+    assert_equal(sum([len(txout.serialize()) for txout in txouts]), 67456)
     return txouts
 
 
 # Create a spend of each passed-in utxo, splicing in "txouts" to each raw
 # transaction to make it large.  See gen_return_txouts() above.
-def create_lots_of_big_transactions(node, txouts, utxos, num, fee):
-    addr = node.getnewaddress()
+def create_lots_of_big_transactions(mini_wallet, node, fee, tx_batch_size, txouts, utxos=None):
     txids = []
-    from .messages import CTransaction
-    for _ in range(num):
-        t = utxos.pop()
-        inputs = [{"txid": t["txid"], "vout": t["vout"]}]
-        outputs = {}
-        change = t['amount'] - fee
-        outputs[addr] = satoshi_round(change)
-        rawtx = node.createrawtransaction(inputs, outputs)
-        tx = CTransaction()
-        tx.deserialize(BytesIO(hex_str_to_bytes(rawtx)))
-        for txout in txouts:
-            tx.vout.append(txout)
-        newtx = tx.serialize().hex()
-        signresult = node.signrawtransactionwithwallet(newtx, None, "NONE")
-        txid = node.sendrawtransaction(signresult["hex"], 0)
-        txids.append(txid)
+    use_internal_utxos = utxos is None
+    for _ in range(tx_batch_size):
+        tx = mini_wallet.create_self_transfer(
+            utxo_to_spend=None if use_internal_utxos else utxos.pop(),
+            fee=fee,
+        )["tx"]
+        tx.vout.extend(txouts)
+        res = node.testmempoolaccept([tx.serialize().hex()])[0]
+        assert_equal(res['fees']['base'], fee)
+        txids.append(node.sendrawtransaction(tx.serialize().hex()))
     return txids
 
 
-def mine_large_block(node, utxos=None):
+def mine_large_block(test_framework, mini_wallet, node):
     # generate a 66k transaction,
     # and 14 of them is close to the 1MB block limit
-    num = 14
     txouts = gen_return_txouts()
-    utxos = utxos if utxos is not None else []
-    if len(utxos) < num:
-        utxos.clear()
-        utxos.extend(node.listunspent())
     fee = 100 * node.getnetworkinfo()["relayfee"]
-    create_lots_of_big_transactions(node, txouts, utxos, num, fee=fee)
-    node.generate(1)
+    create_lots_of_big_transactions(mini_wallet, node, fee, 14, txouts)
+    test_framework.generate(node, 1)
 
 
 def find_vout_for_address(node, txid, addr):
@@ -614,11 +545,6 @@ def find_vout_for_address(node, txid, addr):
     """
     tx = node.getrawtransaction(txid, True)
     for i in range(len(tx["vout"])):
-        scriptPubKey = tx["vout"][i]["scriptPubKey"]
-        if "addresses" in scriptPubKey:
-            if any([addr == a for a in scriptPubKey["addresses"]]):
-                return i
-        elif "address" in scriptPubKey:
-            if addr == scriptPubKey["address"]:
+        if addr == tx["vout"][i]["scriptPubKey"]["address"]:
             return i
     raise RuntimeError("Vout not found for address: txid=%s, addr=%s" % (txid, addr))

basicswap/contrib/websocket_server/websocket_server.py

@@ -166,6 +166,9 @@ class WebsocketServer(ThreadingMixIn, TCPServer, API):
     def _message_received_(self, handler, msg):
         self.message_received(self.handler_to_client(handler), self, msg)
 
+    def _binary_message_received_(self, handler, msg):
+        self.binary_message_received(self.handler_to_client(handler), self, msg)
+
     def _ping_received_(self, handler, msg):
         handler.send_pong(msg)
 
@@ -309,6 +312,7 @@ class WebSocketHandler(StreamRequestHandler):
         opcode = b1 & OPCODE
         masked = b2 & MASKED
         payload_length = b2 & PAYLOAD_LEN
+        is_binary: bool = False
 
         if opcode == OPCODE_CLOSE_CONN:
             logger.info("Client asked to close connection.")
@@ -322,8 +326,8 @@ class WebSocketHandler(StreamRequestHandler):
             logger.warning("Continuation frames are not supported.")
             return
         elif opcode == OPCODE_BINARY:
-            logger.warning("Binary frames are not supported.")
-            return
+            is_binary = True
+            opcode_handler = self.server._binary_message_received_
         elif opcode == OPCODE_TEXT:
             opcode_handler = self.server._message_received_
         elif opcode == OPCODE_PING:
@@ -345,7 +349,8 @@ class WebSocketHandler(StreamRequestHandler):
         for message_byte in self.read_bytes(payload_length):
             message_byte ^= masks[len(message_bytes) % 4]
             message_bytes.append(message_byte)
-        opcode_handler(self, message_bytes.decode('utf8'))
+
+        opcode_handler(self, message_bytes if is_binary else message_bytes.decode('utf8'))
 
     def send_message(self, message):
         self.send_text(message)
@@ -375,6 +380,35 @@ class WebSocketHandler(StreamRequestHandler):
         with self._send_lock:
             self.request.send(header + payload)
 
+    def send_bytes(self, message, opcode=OPCODE_BINARY):
+        header  = bytearray()
+        payload = message
+        payload_length = len(payload)
+
+        # Normal payload
+        if payload_length <= 125:
+            header.append(FIN | opcode)
+            header.append(payload_length)
+
+        # Extended payload
+        elif payload_length >= 126 and payload_length <= 65535:
+            header.append(FIN | opcode)
+            header.append(PAYLOAD_LEN_EXT16)
+            header.extend(struct.pack(">H", payload_length))
+
+        # Huge extended payload
+        elif payload_length < 18446744073709551616:
+            header.append(FIN | opcode)
+            header.append(PAYLOAD_LEN_EXT64)
+            header.extend(struct.pack(">Q", payload_length))
+
+        else:
+            raise Exception("Message is too big. Consider breaking it into chunks.")
+            return
+
+        with self._send_lock:
+            self.request.send(header + payload)
+
     def send_text(self, message, opcode=OPCODE_TEXT):
         """
         Important: Fragmented(=continuation) messages are not supported since

basicswap/db_upgrades.py

@@ -1,327 +1,283 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
 import json
 import time
 
-from sqlalchemy.sql import text
-from sqlalchemy.orm import scoped_session
 from .db import (
+    AutomationStrategy,
     BidState,
     Concepts,
-    AutomationStrategy,
+    create_table,
+    CURRENT_DB_DATA_VERSION,
     CURRENT_DB_VERSION,
-    CURRENT_DB_DATA_VERSION)
+    extract_schema,
+)
 
 from .basicswap_util import (
     BidStates,
-    strBidState,
+    canAcceptBidState,
+    canExpireBidState,
+    canTimeoutBidState,
     isActiveBidState,
     isErrorBidState,
     isFailingBidState,
     isFinalBidState,
+    strBidState,
 )
 
 
+def addBidState(self, state, now, cursor):
+    self.add(
+        BidState(
+            active_ind=1,
+            state_id=int(state),
+            in_progress=isActiveBidState(state),
+            in_error=isErrorBidState(state),
+            swap_failed=isFailingBidState(state),
+            swap_ended=isFinalBidState(state),
+            can_accept=canAcceptBidState(state),
+            can_expire=canExpireBidState(state),
+            can_timeout=canTimeoutBidState(state),
+            label=strBidState(state),
+            created_at=now,
+        ),
+        cursor,
+    )
+
+
 def upgradeDatabaseData(self, data_version):
     if data_version >= CURRENT_DB_DATA_VERSION:
         return
 
-    self.log.info('Upgrading database records from version %d to %d.', data_version, CURRENT_DB_DATA_VERSION)
-    with self.mxDB:
-        try:
-            session = scoped_session(self.session_factory)
+    self.log.info(
+        f"Upgrading database records from version {data_version} to {CURRENT_DB_DATA_VERSION}."
+    )
 
+    cursor = self.openDB()
+    try:
         now = int(time.time())
 
         if data_version < 1:
-                session.add(AutomationStrategy(
+            self.add(
+                AutomationStrategy(
                     active_ind=1,
-                    label='Accept All',
+                    label="Accept All",
                     type_ind=Concepts.OFFER,
-                    data=json.dumps({'exact_rate_only': True,
-                                     'max_concurrent_bids': 5}).encode('utf-8'),
+                    data=json.dumps(
+                        {"exact_rate_only": True, "max_concurrent_bids": 1}
+                    ).encode("utf-8"),
                     only_known_identities=False,
-                    created_at=now))
-                session.add(AutomationStrategy(
+                    created_at=now,
+                ),
+                cursor,
+            )
+            self.add(
+                AutomationStrategy(
                     active_ind=1,
-                    label='Accept Known',
+                    label="Accept Known",
                     type_ind=Concepts.OFFER,
-                    data=json.dumps({'exact_rate_only': True,
-                                     'max_concurrent_bids': 5}).encode('utf-8'),
+                    data=json.dumps(
+                        {"exact_rate_only": True, "max_concurrent_bids": 1}
+                    ).encode("utf-8"),
                     only_known_identities=True,
-                    note='Accept bids from identities with previously successful swaps only',
-                    created_at=now))
+                    note="Accept bids from identities with previously successful swaps only",
+                    created_at=now,
+                ),
+                cursor,
+            )
 
             for state in BidStates:
-                    session.add(BidState(
-                        active_ind=1,
-                        state_id=int(state),
-                        in_progress=isActiveBidState(state),
-                        in_error=isErrorBidState(state),
-                        swap_failed=isFailingBidState(state),
-                        swap_ended=isFinalBidState(state),
-                        label=strBidState(state),
-                        created_at=now))
+                addBidState(self, state, now, cursor)
 
         if data_version > 0 and data_version < 2:
-                for state in (BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_TX_SIGS, BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_SPEND_TX):
-                    session.add(BidState(
+            for state in (
+                BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_TX_SIGS,
+                BidStates.XMR_SWAP_MSG_SCRIPT_LOCK_SPEND_TX,
+            ):
+                self.add(
+                    BidState(
                         active_ind=1,
                         state_id=int(state),
                         in_progress=isActiveBidState(state),
                         label=strBidState(state),
-                        created_at=now))
-            if data_version > 0 and data_version < 3:
+                        created_at=now,
+                    ),
+                    cursor,
+                )
+        if data_version > 0 and data_version < 7:
             for state in BidStates:
                 in_error = isErrorBidState(state)
                 swap_failed = isFailingBidState(state)
                 swap_ended = isFinalBidState(state)
-                    session.execute(text('UPDATE bidstates SET in_error = :in_error, swap_failed = :swap_failed, swap_ended = :swap_ended WHERE state_id = :state_id', {'in_error': in_error, 'swap_failed': swap_failed, 'swap_ended': swap_ended, 'state_id': int(state)}))
+                can_accept = canAcceptBidState(state)
+                can_expire = canExpireBidState(state)
+                can_timeout = canTimeoutBidState(state)
+                cursor.execute(
+                    "UPDATE bidstates SET can_accept = :can_accept, can_expire = :can_expire, can_timeout = :can_timeout, in_error = :in_error, swap_failed = :swap_failed, swap_ended = :swap_ended WHERE state_id = :state_id",
+                    {
+                        "in_error": in_error,
+                        "swap_failed": swap_failed,
+                        "swap_ended": swap_ended,
+                        "can_accept": can_accept,
+                        "can_expire": can_expire,
+                        "can_timeout": can_timeout,
+                        "state_id": int(state),
+                    },
+                )
         if data_version > 0 and data_version < 4:
-                for state in (BidStates.BID_REQUEST_SENT, BidStates.BID_REQUEST_ACCEPTED):
-                    session.add(BidState(
-                        active_ind=1,
-                        state_id=int(state),
-                        in_progress=isActiveBidState(state),
-                        in_error=isErrorBidState(state),
-                        swap_failed=isFailingBidState(state),
-                        swap_ended=isFinalBidState(state),
-                        label=strBidState(state),
-                        created_at=now))
+            for state in (
+                BidStates.BID_REQUEST_SENT,
+                BidStates.BID_REQUEST_ACCEPTED,
+            ):
+                addBidState(self, state, now, cursor)
+
+        if data_version > 0 and data_version < 5:
+            for state in (
+                BidStates.BID_EXPIRED,
+                BidStates.BID_AACCEPT_DELAY,
+                BidStates.BID_AACCEPT_FAIL,
+            ):
+                addBidState(self, state, now, cursor)
 
         self.db_data_version = CURRENT_DB_DATA_VERSION
-            self.setIntKV('db_data_version', self.db_data_version, session)
-            session.commit()
-            self.log.info('Upgraded database records to version {}'.format(self.db_data_version))
+        self.setIntKV("db_data_version", self.db_data_version, cursor)
+        self.commitDB()
+        self.log.info(f"Upgraded database records to version {self.db_data_version}")
     finally:
-            session.close()
-            session.remove()
+        self.closeDB(cursor, commit=False)
 
 
 def upgradeDatabase(self, db_version):
-    if db_version >= CURRENT_DB_VERSION:
+    if self._force_db_upgrade is False and db_version >= CURRENT_DB_VERSION:
         return
 
-    self.log.info('Upgrading database from version %d to %d.', db_version, CURRENT_DB_VERSION)
+    self.log.info(
+        f"Upgrading database from version {db_version} to {CURRENT_DB_VERSION}."
+    )
 
-    while True:
-        session = scoped_session(self.session_factory)
+    # db_version, tablename, oldcolumnname, newcolumnname
+    rename_columns = [
+        (13, "actions", "event_id", "action_id"),
+        (13, "actions", "event_type", "action_type"),
+        (13, "actions", "event_data", "action_data"),
+        (
+            14,
+            "xmr_swaps",
+            "coin_a_lock_refund_spend_tx_msg_id",
+            "coin_a_lock_spend_tx_msg_id",
+        ),
+    ]
 
-        current_version = db_version
-        if current_version == 6:
-            session.execute(text('ALTER TABLE bids ADD COLUMN security_token BLOB'))
-            session.execute(text('ALTER TABLE offers ADD COLUMN security_token BLOB'))
-            db_version += 1
-        elif current_version == 7:
-            session.execute(text('ALTER TABLE transactions ADD COLUMN block_hash BLOB'))
-            session.execute(text('ALTER TABLE transactions ADD COLUMN block_height INTEGER'))
-            session.execute(text('ALTER TABLE transactions ADD COLUMN block_time INTEGER'))
-            db_version += 1
-        elif current_version == 8:
-            session.execute(text('''
-                CREATE TABLE wallets (
-                    record_id INTEGER NOT NULL,
-                    coin_id INTEGER,
-                    wallet_name VARCHAR,
-                    wallet_data VARCHAR,
-                    balance_type INTEGER,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-            db_version += 1
-        elif current_version == 9:
-            session.execute(text('ALTER TABLE wallets ADD COLUMN wallet_data VARCHAR'))
-            db_version += 1
-        elif current_version == 10:
-            session.execute(text('ALTER TABLE smsgaddresses ADD COLUMN active_ind INTEGER'))
-            session.execute(text('ALTER TABLE smsgaddresses ADD COLUMN created_at INTEGER'))
-            session.execute(text('ALTER TABLE smsgaddresses ADD COLUMN note VARCHAR'))
-            session.execute(text('ALTER TABLE smsgaddresses ADD COLUMN pubkey VARCHAR'))
-            session.execute(text('UPDATE smsgaddresses SET active_ind = 1, created_at = 1'))
+    expect_schema = extract_schema()
+    have_tables = {}
+    try:
+        cursor = self.openDB()
 
-            session.execute(text('ALTER TABLE offers ADD COLUMN addr_to VARCHAR'))
-            session.execute(text(f'UPDATE offers SET addr_to = "{self.network_addr}"'))
-            db_version += 1
-        elif current_version == 11:
-            session.execute(text('ALTER TABLE bids ADD COLUMN chain_a_height_start INTEGER'))
-            session.execute(text('ALTER TABLE bids ADD COLUMN chain_b_height_start INTEGER'))
-            session.execute(text('ALTER TABLE bids ADD COLUMN protocol_version INTEGER'))
-            session.execute(text('ALTER TABLE offers ADD COLUMN protocol_version INTEGER'))
-            session.execute(text('ALTER TABLE transactions ADD COLUMN tx_data BLOB'))
-            db_version += 1
-        elif current_version == 12:
-            session.execute(text('''
-                CREATE TABLE knownidentities (
-                    record_id INTEGER NOT NULL,
-                    address VARCHAR,
-                    label VARCHAR,
-                    publickey BLOB,
-                    num_sent_bids_successful INTEGER,
-                    num_recv_bids_successful INTEGER,
-                    num_sent_bids_rejected INTEGER,
-                    num_recv_bids_rejected INTEGER,
-                    num_sent_bids_failed INTEGER,
-                    num_recv_bids_failed INTEGER,
-                    note VARCHAR,
-                    updated_at BIGINT,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-            session.execute(text('ALTER TABLE bids ADD COLUMN reject_code INTEGER'))
-            session.execute(text('ALTER TABLE bids ADD COLUMN rate INTEGER'))
-            session.execute(text('ALTER TABLE offers ADD COLUMN amount_negotiable INTEGER'))
-            session.execute(text('ALTER TABLE offers ADD COLUMN rate_negotiable INTEGER'))
-            db_version += 1
-        elif current_version == 13:
-            db_version += 1
-            session.execute(text('''
-                CREATE TABLE automationstrategies (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-                    label VARCHAR,
-                    type_ind INTEGER,
-                    only_known_identities INTEGER,
-                    num_concurrent INTEGER,
-                    data BLOB,
+        for rename_column in rename_columns:
+            dbv, table_name, colname_from, colname_to = rename_column
+            if db_version < dbv:
+                cursor.execute(
+                    f"ALTER TABLE {table_name} RENAME COLUMN {colname_from} TO {colname_to}"
+                )
 
-                    note VARCHAR,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-
-            session.execute(text('''
-                CREATE TABLE automationlinks (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-
-                    linked_type INTEGER,
-                    linked_id BLOB,
-                    strategy_id INTEGER,
-
-                    data BLOB,
-                    repeat_limit INTEGER,
-                    repeat_count INTEGER,
-
-                    note VARCHAR,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-
-            session.execute(text('''
-                CREATE TABLE history (
-                    record_id INTEGER NOT NULL,
-                    concept_type INTEGER,
-                    concept_id INTEGER,
-                    changed_data BLOB,
-
-                    note VARCHAR,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-
-            session.execute(text('''
-                CREATE TABLE bidstates (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-                    state_id INTEGER,
-                    label VARCHAR,
-                    in_progress INTEGER,
-
-                    note VARCHAR,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-
-            session.execute(text('ALTER TABLE wallets ADD COLUMN active_ind INTEGER'))
-            session.execute(text('ALTER TABLE knownidentities ADD COLUMN active_ind INTEGER'))
-            session.execute(text('ALTER TABLE eventqueue RENAME TO actions'))
-            session.execute(text('ALTER TABLE actions RENAME COLUMN event_id TO action_id'))
-            session.execute(text('ALTER TABLE actions RENAME COLUMN event_type TO action_type'))
-            session.execute(text('ALTER TABLE actions RENAME COLUMN event_data TO action_data'))
-        elif current_version == 14:
-            db_version += 1
-            session.execute(text('ALTER TABLE xmr_swaps ADD COLUMN coin_a_lock_release_msg_id BLOB'))
-            session.execute(text('ALTER TABLE xmr_swaps RENAME COLUMN coin_a_lock_refund_spend_tx_msg_id TO coin_a_lock_spend_tx_msg_id'))
-        elif current_version == 15:
-            db_version += 1
-            session.execute(text('''
-                CREATE TABLE notifications (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-                    event_type INTEGER,
-                    event_data BLOB,
-                    created_at BIGINT,
-                    PRIMARY KEY (record_id))'''))
-        elif current_version == 16:
-            db_version += 1
-            session.execute(text('''
-                CREATE TABLE prefunded_transactions (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-                    created_at BIGINT,
-                    linked_type INTEGER,
-                    linked_id BLOB,
-                    tx_type INTEGER,
-                    tx_data BLOB,
-                    used_by BLOB,
-                    PRIMARY KEY (record_id))'''))
-        elif current_version == 17:
-            db_version += 1
-            session.execute(text('ALTER TABLE knownidentities ADD COLUMN automation_override INTEGER'))
-            session.execute(text('ALTER TABLE knownidentities ADD COLUMN visibility_override INTEGER'))
-            session.execute(text('ALTER TABLE knownidentities ADD COLUMN data BLOB'))
-            session.execute(text('UPDATE knownidentities SET active_ind = 1'))
-        elif current_version == 18:
-            db_version += 1
-            session.execute(text('ALTER TABLE xmr_split_data ADD COLUMN addr_from STRING'))
-            session.execute(text('ALTER TABLE xmr_split_data ADD COLUMN addr_to STRING'))
-        elif current_version == 19:
-            db_version += 1
-            session.execute(text('ALTER TABLE bidstates ADD COLUMN in_error INTEGER'))
-            session.execute(text('ALTER TABLE bidstates ADD COLUMN swap_failed INTEGER'))
-            session.execute(text('ALTER TABLE bidstates ADD COLUMN swap_ended INTEGER'))
-        elif current_version == 20:
-            db_version += 1
-            session.execute(text('''
-                CREATE TABLE message_links (
-                    record_id INTEGER NOT NULL,
-                    active_ind INTEGER,
-                    created_at BIGINT,
-
-                    linked_type INTEGER,
-                    linked_id BLOB,
-
-                    msg_type INTEGER,
-                    msg_sequence INTEGER,
-                    msg_id BLOB,
-                    PRIMARY KEY (record_id))'''))
-            session.execute(text('ALTER TABLE offers ADD COLUMN bid_reversed INTEGER'))
-        elif current_version == 21:
-            db_version += 1
-            session.execute(text('ALTER TABLE offers ADD COLUMN proof_utxos BLOB'))
-            session.execute(text('ALTER TABLE bids ADD COLUMN proof_utxos BLOB'))
-        elif current_version == 22:
-            db_version += 1
-            session.execute(text('ALTER TABLE offers ADD COLUMN amount_to INTEGER'))
-        elif current_version == 23:
-            db_version += 1
-            session.execute(text('''
-                CREATE TABLE checkedblocks (
-                    record_id INTEGER NOT NULL,
-                    created_at BIGINT,
-                    coin_type INTEGER,
-                    block_height INTEGER,
-                    block_hash BLOB,
-                    block_time INTEGER,
-                    PRIMARY KEY (record_id))'''))
-            session.execute(text('ALTER TABLE bids ADD COLUMN pkhash_buyer_to BLOB'))
-        if current_version != db_version:
-            self.db_version = db_version
-            self.setIntKV('db_version', db_version, session)
-            session.commit()
-            session.close()
-            session.remove()
-            self.log.info('Upgraded database to version {}'.format(self.db_version))
+        query = "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;"
+        tables = cursor.execute(query).fetchall()
+        for table in tables:
+            table_name = table[0]
+            if table_name in ("sqlite_sequence",):
                 continue
-        break
 
-    if db_version != CURRENT_DB_VERSION:
-        raise ValueError('Unable to upgrade database.')
+            have_table = {}
+            have_columns = {}
+            query = "SELECT * FROM PRAGMA_TABLE_INFO(:table_name) ORDER BY cid DESC;"
+            columns = cursor.execute(query, {"table_name": table_name}).fetchall()
+            for column in columns:
+                cid, name, data_type, notnull, default_value, primary_key = column
+                have_columns[name] = {"type": data_type, "primary_key": primary_key}
+
+            have_table["columns"] = have_columns
+
+            cursor.execute(f"PRAGMA INDEX_LIST('{table_name}');")
+            indices = cursor.fetchall()
+            for index in indices:
+                seq, index_name, unique, origin, partial = index
+
+                if origin == "pk":  # Created by a PRIMARY KEY constraint
+                    continue
+
+                cursor.execute(f"PRAGMA INDEX_INFO('{index_name}');")
+                index_info = cursor.fetchall()
+
+                add_index = {"index_name": index_name}
+                for index_columns in index_info:
+                    seqno, cid, name = index_columns
+                    if origin == "u":  # Created by a UNIQUE constraint
+                        have_columns[name]["unique"] = 1
+                    else:
+                        if "column_1" not in add_index:
+                            add_index["column_1"] = name
+                        elif "column_2" not in add_index:
+                            add_index["column_2"] = name
+                        elif "column_3" not in add_index:
+                            add_index["column_3"] = name
+                        else:
+                            raise RuntimeError("Add more index columns.")
+                if origin == "c":
+                    if "indices" not in table:
+                        have_table["indices"] = []
+                    have_table["indices"].append(add_index)
+
+            have_tables[table_name] = have_table
+
+        for table_name, table in expect_schema.items():
+            if table_name not in have_tables:
+                self.log.info(f"Creating table {table_name}.")
+                create_table(cursor, table_name, table)
+                continue
+
+            have_table = have_tables[table_name]
+            have_columns = have_table["columns"]
+            for colname, column in table["columns"].items():
+                if colname not in have_columns:
+                    col_type = column["type"]
+                    self.log.info(f"Adding column {colname} to table {table_name}.")
+                    cursor.execute(
+                        f"ALTER TABLE {table_name} ADD COLUMN {colname} {col_type}"
+                    )
+            indices = table.get("indices", [])
+            have_indices = have_table.get("indices", [])
+            for index in indices:
+                index_name = index["index_name"]
+                if not any(
+                    have_idx.get("index_name") == index_name
+                    for have_idx in have_indices
+                ):
+                    self.log.info(f"Adding index {index_name} to table {table_name}.")
+                    column_1 = index["column_1"]
+                    column_2 = index.get("column_2", None)
+                    column_3 = index.get("column_3", None)
+                    query: str = (
+                        f"CREATE INDEX {index_name} ON {table_name} ({column_1}"
+                    )
+                    if column_2:
+                        query += f", {column_2}"
+                    if column_3:
+                        query += f", {column_3}"
+                    query += ")"
+                    cursor.execute(query)
+
+        if CURRENT_DB_VERSION != db_version:
+            self.db_version = CURRENT_DB_VERSION
+            self.setIntKV("db_version", CURRENT_DB_VERSION, cursor)
+            self.log.info(f"Upgraded database to version {self.db_version}")
+        self.commitDB()
+    except Exception as e:
+        self.log.error(f"Upgrade failed {e}")
+        self.rollbackDB()
+    finally:
+        self.closeDB(cursor, commit=False)

basicswap/db_util.py

@@ -1,10 +1,9 @@
 # -*- coding: utf-8 -*-
 
-# Copyright (c) 2023-2024 The BSX Developers
+# Copyright (c) 2023-2025 The Basicswap Developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-from sqlalchemy.sql import text
 from .db import (
     Concepts,
 )
@@ -13,47 +12,75 @@ from .db import (
 def remove_expired_data(self, time_offset: int = 0):
     now: int = self.getTime()
     try:
-        session = self.openSession()
+        cursor = self.openDB()
 
-        active_bids_insert = self.activeBidsQueryStr(now, '', 'b2')
-        query_str = f'''
+        active_bids_insert: str = self.activeBidsQueryStr("", "b2")
+        query_str = f"""
                     SELECT o.offer_id FROM offers o
                     WHERE o.expire_at <= :expired_at AND 0 = (SELECT COUNT(*) FROM bids b2 WHERE b2.offer_id = o.offer_id AND {active_bids_insert})
-                    '''
+                    """
         num_offers = 0
         num_bids = 0
-        offer_rows = session.execute(text(query_str), {'expired_at': now - time_offset})
+        offer_rows = cursor.execute(
+            query_str, {"now": now, "expired_at": now - time_offset}
+        )
         for offer_row in offer_rows:
             num_offers += 1
-            bid_rows = session.execute(text('SELECT bids.bid_id FROM bids WHERE bids.offer_id = :offer_id'), {'offer_id': offer_row[0]})
+            offer_query_data = {
+                "type_ind": int(Concepts.OFFER),
+                "offer_id": offer_row[0],
+            }
+            bid_rows = cursor.execute(
+                "SELECT bids.bid_id FROM bids WHERE bids.offer_id = :offer_id",
+                offer_query_data,
+            )
             for bid_row in bid_rows:
                 num_bids += 1
-                session.execute(text('DELETE FROM transactions WHERE transactions.bid_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM eventlog WHERE eventlog.linked_type = :type_ind AND eventlog.linked_id = :bid_id'), {'type_ind': int(Concepts.BID), 'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM automationlinks WHERE automationlinks.linked_type = :type_ind AND automationlinks.linked_id = :bid_id'), {'type_ind': int(Concepts.BID), 'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM prefunded_transactions WHERE prefunded_transactions.linked_type = :type_ind AND prefunded_transactions.linked_id = :bid_id'), {'type_ind': int(Concepts.BID), 'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM history WHERE history.concept_type = :type_ind AND history.concept_id = :bid_id'), {'type_ind': int(Concepts.BID), 'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM xmr_swaps WHERE xmr_swaps.bid_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM actions WHERE actions.linked_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM addresspool WHERE addresspool.bid_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM xmr_split_data WHERE xmr_split_data.bid_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM bids WHERE bids.bid_id = :bid_id'), {'bid_id': bid_row[0]})
-                session.execute(text('DELETE FROM message_links WHERE linked_type = :type_ind AND linked_id = :linked_id'), {'type_ind': int(Concepts.BID), 'linked_id': bid_row[0]})
-
-            session.execute(text('DELETE FROM eventlog WHERE eventlog.linked_type = :type_ind AND eventlog.linked_id = :offer_id'), {'type_ind': int(Concepts.OFFER), 'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM automationlinks WHERE automationlinks.linked_type = :type_ind AND automationlinks.linked_id = :offer_id'), {'type_ind': int(Concepts.OFFER), 'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM prefunded_transactions WHERE prefunded_transactions.linked_type = :type_ind AND prefunded_transactions.linked_id = :offer_id'), {'type_ind': int(Concepts.OFFER), 'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM history WHERE history.concept_type = :type_ind AND history.concept_id = :offer_id'), {'type_ind': int(Concepts.OFFER), 'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM xmr_offers WHERE xmr_offers.offer_id = :offer_id'), {'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM sentoffers WHERE sentoffers.offer_id = :offer_id'), {'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM actions WHERE actions.linked_id = :offer_id'), {'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM offers WHERE offers.offer_id = :offer_id'), {'offer_id': offer_row[0]})
-            session.execute(text('DELETE FROM message_links WHERE linked_type = :type_ind AND linked_id = :offer_id'), {'type_ind': int(Concepts.OFFER), 'offer_id': offer_row[0]})
+                bid_query_data = {"type_ind": int(Concepts.BID), "bid_id": bid_row[0]}
+                for query_str in [
+                    "DELETE FROM transactions WHERE transactions.bid_id = :bid_id",
+                    "DELETE FROM eventlog WHERE eventlog.linked_type = :type_ind AND eventlog.linked_id = :bid_id",
+                    "DELETE FROM automationlinks WHERE automationlinks.linked_type = :type_ind AND automationlinks.linked_id = :bid_id",
+                    "DELETE FROM prefunded_transactions WHERE prefunded_transactions.linked_type = :type_ind AND prefunded_transactions.linked_id = :bid_id",
+                    "DELETE FROM history WHERE history.concept_type = :type_ind AND history.concept_id = :bid_id",
+                    "DELETE FROM xmr_swaps WHERE xmr_swaps.bid_id = :bid_id",
+                    "DELETE FROM actions WHERE actions.linked_id = :bid_id",
+                    "DELETE FROM addresspool WHERE addresspool.bid_id = :bid_id",
+                    "DELETE FROM xmr_split_data WHERE xmr_split_data.bid_id = :bid_id",
+                    "DELETE FROM bids WHERE bids.bid_id = :bid_id",
+                    "DELETE FROM message_links WHERE linked_type = :type_ind AND linked_id = :bid_id",
+                    "DELETE FROM direct_message_route_links WHERE linked_type = :type_ind AND linked_id = :bid_id",
+                    "DELETE FROM message_network_links WHERE linked_type = :type_ind AND linked_id = :bid_id",
+                ]:
+                    cursor.execute(query_str, bid_query_data)
+            for query_str in [
+                "DELETE FROM eventlog WHERE eventlog.linked_type = :type_ind AND eventlog.linked_id = :offer_id",
+                "DELETE FROM automationlinks WHERE automationlinks.linked_type = :type_ind AND automationlinks.linked_id = :offer_id",
+                "DELETE FROM prefunded_transactions WHERE prefunded_transactions.linked_type = :type_ind AND prefunded_transactions.linked_id = :offer_id",
+                "DELETE FROM history WHERE history.concept_type = :type_ind AND history.concept_id = :offer_id",
+                "DELETE FROM xmr_offers WHERE xmr_offers.offer_id = :offer_id",
+                "DELETE FROM sentoffers WHERE sentoffers.offer_id = :offer_id",
+                "DELETE FROM actions WHERE actions.linked_id = :offer_id",
+                "DELETE FROM offers WHERE offers.offer_id = :offer_id",
+                "DELETE FROM message_links WHERE linked_type = :type_ind AND linked_id = :offer_id",
+                "DELETE FROM message_network_links WHERE linked_type = :type_ind AND linked_id = :offer_id",
+            ]:
+                cursor.execute(query_str, offer_query_data)
 
         if num_offers > 0 or num_bids > 0:
-            self.log.info('Removed data for {} expired offer{} and {} bid{}.'.format(num_offers, 's' if num_offers != 1 else '', num_bids, 's' if num_bids != 1 else ''))
+            self.log.info(
+                "Removed data for {} expired offer{} and {} bid{}.".format(
+                    num_offers,
+                    "s" if num_offers != 1 else "",
+                    num_bids,
+                    "s" if num_bids != 1 else "",
+                )
+            )
 
-        session.execute(text('DELETE FROM checkedblocks WHERE created_at <= :expired_at'), {'expired_at': now - time_offset})
+        cursor.execute(
+            "DELETE FROM checkedblocks WHERE created_at <= :expired_at",
+            {"expired_at": now - time_offset},
+        )
 
     finally:
-        self.closeSession(session)
+        self.closeDB(cursor)

basicswap/ed25519_fast_util.py

@@ -1,36 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import secrets
-import hashlib
-import basicswap.contrib.ed25519_fast as edf
-
-
-def get_secret():
-    return 9 + secrets.randbelow(edf.l - 9)
-
-
-def encodepoint(P):
-    zi = edf.inv(P[2])
-    x = (P[0] * zi) % edf.q
-    y = (P[1] * zi) % edf.q
-    y += ((x & 1) << 255)
-    return y.to_bytes(32, byteorder='little')
-
-
-def hashToEd25519(bytes_in):
-    hashed = hashlib.sha256(bytes_in).digest()
-    for i in range(1000):
-        h255 = bytearray(hashed)
-        x_sign = 0 if h255[31] & 0x80 == 0 else 1
-        h255[31] &= 0x7f  # Clear top bit
-        y = int.from_bytes(h255, byteorder='little')
-        x = edf.xrecover(y, x_sign)
-        if x == 0 and y == 1:  # Skip infinity point
-            continue
-
-        P = [x, y, 1, (x * y) % edf.q]
-        # Keep trying until the point is in the correct subgroup
-        if edf.isoncurve(P) and edf.is_identity(edf.scalarmult(P, edf.l)):
-            return P
-        hashed = hashlib.sha256(hashed).digest()
-    raise ValueError('hashToEd25519 failed')

basicswap/explorers.py

@@ -1,13 +1,17 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2019-2023 tecnovert
+# Copyright (c) 2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
 import json
 
 
-class Explorer():
+default_coingecko_api_key = "CG-8hm3r9iLfpEXv4ied8oLbeUj"
+
+
+class Explorer:
     def __init__(self, swapclient, coin_type, base_url):
         self.swapclient = swapclient
         self.coin_type = coin_type
@@ -15,82 +19,94 @@ class Explorer():
         self.log = self.swapclient.log
 
     def readURL(self, url):
-        self.log.debug('Explorer url: {}'.format(url))
+        self.log.debug("Explorer url: {}".format(url))
         return self.swapclient.readURL(url)
 
 
 class ExplorerInsight(Explorer):
     def getChainHeight(self):
-        return json.loads(self.readURL(self.base_url + '/sync'))['blockChainHeight']
+        return json.loads(self.readURL(self.base_url + "/sync"))["blockChainHeight"]
 
     def getBlock(self, block_hash):
-        data = json.loads(self.readURL(self.base_url + '/block/{}'.format(block_hash)))
+        data = json.loads(self.readURL(self.base_url + "/block/{}".format(block_hash)))
         return data
 
     def getTransaction(self, txid):
-        data = json.loads(self.readURL(self.base_url + '/tx/{}'.format(txid)))
+        data = json.loads(self.readURL(self.base_url + "/tx/{}".format(txid)))
         return data
 
     def getBalance(self, address):
-        data = json.loads(self.readURL(self.base_url + '/addr/{}/balance'.format(address)))
+        data = json.loads(
+            self.readURL(self.base_url + "/addr/{}/balance".format(address))
+        )
         return data
 
     def lookupUnspentByAddress(self, address):
-        data = json.loads(self.readURL(self.base_url + '/addr/{}/utxo'.format(address)))
+        data = json.loads(self.readURL(self.base_url + "/addr/{}/utxo".format(address)))
         rv = []
         for utxo in data:
-            rv.append({
-                'txid': utxo['txid'],
-                'index': utxo['vout'],
-                'height': utxo['height'],
-                'n_conf': utxo['confirmations'],
-                'value': utxo['satoshis'],
-            })
+            rv.append(
+                {
+                    "txid": utxo["txid"],
+                    "index": utxo["vout"],
+                    "height": utxo["height"],
+                    "n_conf": utxo["confirmations"],
+                    "value": utxo["satoshis"],
+                }
+            )
         return rv
 
 
 class ExplorerBitAps(Explorer):
     def getChainHeight(self):
-        return json.loads(self.readURL(self.base_url + '/block/last'))['data']['block']['height']
+        return json.loads(self.readURL(self.base_url + "/block/last"))["data"]["block"][
+            "height"
+        ]
 
     def getBlock(self, block_hash):
-        data = json.loads(self.readURL(self.base_url + '/block/{}'.format(block_hash)))
+        data = json.loads(self.readURL(self.base_url + "/block/{}".format(block_hash)))
         return data
 
     def getTransaction(self, txid):
-        data = json.loads(self.readURL(self.base_url + '/transaction/{}'.format(txid)))
+        data = json.loads(self.readURL(self.base_url + "/transaction/{}".format(txid)))
         return data
 
     def getBalance(self, address):
-        data = json.loads(self.readURL(self.base_url + '/address/state/' + address))
-        return data['data']['balance']
+        data = json.loads(self.readURL(self.base_url + "/address/state/" + address))
+        return data["data"]["balance"]
 
     def lookupUnspentByAddress(self, address):
         # Can't get unspents return only if exactly one transaction exists
-        data = json.loads(self.readURL(self.base_url + '/address/transactions/' + address))
+        data = json.loads(
+            self.readURL(self.base_url + "/address/transactions/" + address)
+        )
         try:
-            assert data['data']['list'] == 1
+            assert data["data"]["list"] == 1
         except Exception as ex:
-            self.log.debug('Explorer error: {}'.format(str(ex)))
+            self.log.debug("Explorer error: {}".format(str(ex)))
             return None
-        tx = data['data']['list'][0]
-        tx_data = json.loads(self.readURL(self.base_url + '/transaction/{}'.format(tx['txId'])))['data']
+        tx = data["data"]["list"][0]
+        tx_data = json.loads(
+            self.readURL(self.base_url + "/transaction/{}".format(tx["txId"]))
+        )["data"]
 
-        for i, vout in tx_data['vOut'].items():
-            if vout['address'] == address:
-                return [{
-                    'txid': tx_data['txId'],
-                    'index': int(i),
-                    'height': tx_data['blockHeight'],
-                    'n_conf': tx_data['confirmations'],
-                    'value': vout['value'],
-                }]
+        for i, vout in tx_data["vOut"].items():
+            if vout["address"] == address:
+                return [
+                    {
+                        "txid": tx_data["txId"],
+                        "index": int(i),
+                        "height": tx_data["blockHeight"],
+                        "n_conf": tx_data["confirmations"],
+                        "value": vout["value"],
+                    }
+                ]
 
 
 class ExplorerChainz(Explorer):
     def getChainHeight(self):
-        return int(self.readURL(self.base_url + '?q=getblockcount'))
+        return int(self.readURL(self.base_url + "?q=getblockcount"))
 
     def lookupUnspentByAddress(self, address):
         chain_height = self.getChainHeight()
-        self.log.debug('[rm] chain_height %d', chain_height)
+        self.log.debug("[rm] chain_height %d", chain_height)

basicswap/interface/base.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
+# Copyright (c) 2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -14,7 +15,8 @@ from basicswap.chainparams import (
 )
 from basicswap.util import (
     ensure,
-    i2b, b2i,
+    i2b,
+    b2i,
     make_int,
     format_amount,
     TemporaryError,
@@ -26,9 +28,7 @@ from basicswap.util.ecc import (
     ep,
     getSecretInt,
 )
-from coincurve.dleag import (
-    verify_secp256k1_point
-)
+from coincurve.dleag import verify_secp256k1_point
 from coincurve.keys import (
     PublicKey,
 )
@@ -52,6 +52,12 @@ class CoinInterface:
         self.setDefaults()
         self._network = network
         self._mx_wallet = threading.Lock()
+        self._altruistic = True
+        self._core_version = None  # Set in getDaemonVersion()
+
+    def interface_type(self) -> int:
+        # coin_type() returns the base coin type, interface_type() returns the coin+balance type.
+        return self.coin_type()
 
     def setDefaults(self):
         self._unknown_wallet_seed = True
@@ -66,33 +72,33 @@ class CoinInterface:
 
     def coin_name(self) -> str:
         coin_chainparams = chainparams[self.coin_type()]
-        if coin_chainparams.get('use_ticker_as_name', False):
-            return coin_chainparams['ticker']
-        return coin_chainparams['name'].capitalize()
+        if "display_name" in coin_chainparams:
+            return coin_chainparams["display_name"]
+        return coin_chainparams["name"].capitalize()
 
     def ticker(self) -> str:
-        ticker = chainparams[self.coin_type()]['ticker']
-        if self._network == 'testnet':
-            ticker = 't' + ticker
-        elif self._network == 'regtest':
-            ticker = 'rt' + ticker
+        ticker = chainparams[self.coin_type()]["ticker"]
+        if self._network == "testnet":
+            ticker = "t" + ticker
+        elif self._network == "regtest":
+            ticker = "rt" + ticker
         return ticker
 
     def getExchangeTicker(self, exchange_name: str) -> str:
-        return chainparams[self.coin_type()]['ticker']
+        return chainparams[self.coin_type()]["ticker"]
 
     def getExchangeName(self, exchange_name: str) -> str:
-        return chainparams[self.coin_type()]['name']
+        return chainparams[self.coin_type()]["name"]
 
     def ticker_mainnet(self) -> str:
-        ticker = chainparams[self.coin_type()]['ticker']
+        ticker = chainparams[self.coin_type()]["ticker"]
         return ticker
 
     def min_amount(self) -> int:
-        return chainparams[self.coin_type()][self._network]['min_amount']
+        return chainparams[self.coin_type()][self._network]["min_amount"]
 
     def max_amount(self) -> int:
-        return chainparams[self.coin_type()][self._network]['max_amount']
+        return chainparams[self.coin_type()][self._network]["max_amount"]
 
     def setWalletSeedWarning(self, value: bool) -> None:
         self._unknown_wallet_seed = value
@@ -110,7 +116,7 @@ class CoinInterface:
         return chainparams[self.coin_type()][self._network]
 
     def has_segwit(self) -> bool:
-        return chainparams[self.coin_type()].get('has_segwit', True)
+        return chainparams[self.coin_type()].get("has_segwit", True)
 
     def use_p2shp2wsh(self) -> bool:
         # p2sh-p2wsh
@@ -120,24 +126,26 @@ class CoinInterface:
         if isinstance(ex, TemporaryError):
             return True
         str_error: str = str(ex).lower()
-        if 'not enough unlocked money' in str_error:
+        if "not enough unlocked money" in str_error:
             return True
-        if 'no unlocked balance' in str_error:
+        if "no unlocked balance" in str_error:
             return True
-        if 'transaction was rejected by daemon' in str_error:
+        if "transaction was rejected by daemon" in str_error:
             return True
-        if 'invalid unlocked_balance' in str_error:
+        if "invalid unlocked_balance" in str_error:
             return True
-        if 'daemon is busy' in str_error:
+        if "daemon is busy" in str_error:
             return True
-        if 'timed out' in str_error:
+        if "timed out" in str_error:
             return True
-        if 'request-sent' in str_error:
+        if "request-sent" in str_error:
             return True
         return False
 
     def setConfTarget(self, new_conf_target: int) -> None:
-        ensure(new_conf_target >= 1 and new_conf_target < 33, 'Invalid conf_target value')
+        ensure(
+            new_conf_target >= 1 and new_conf_target < 33, "Invalid conf_target value"
+        )
         self._conf_target = new_conf_target
 
     def walletRestoreHeight(self) -> int:
@@ -166,31 +174,19 @@ class CoinInterface:
     def checkWallets(self) -> int:
         return 1
 
+    def altruistic(self) -> bool:
+        return self._altruistic
 
-class AdaptorSigInterface():
+
+class AdaptorSigInterface:
     def getScriptLockTxDummyWitness(self, script: bytes):
-        return [
-            b'',
-            bytes(72),
-            bytes(72),
-            bytes(len(script))
-        ]
+        return [b"", bytes(72), bytes(72), bytes(len(script))]
 
     def getScriptLockRefundSpendTxDummyWitness(self, script: bytes):
-        return [
-            b'',
-            bytes(72),
-            bytes(72),
-            bytes((1,)),
-            bytes(len(script))
-        ]
+        return [b"", bytes(72), bytes(72), bytes((1,)), bytes(len(script))]
 
     def getScriptLockRefundSwipeTxDummyWitness(self, script: bytes):
-        return [
-            bytes(72),
-            b'',
-            bytes(len(script))
-        ]
+        return [bytes(72), b"", bytes(len(script))]
 
 
 class Secp256k1Interface(CoinInterface, AdaptorSigInterface):
@@ -198,7 +194,7 @@ class Secp256k1Interface(CoinInterface, AdaptorSigInterface):
     def curve_type():
         return Curves.secp256k1
 
-    def getNewSecretKey(self) -> bytes:
+    def getNewRandomKey(self) -> bytes:
         return i2b(getSecretInt())
 
     def getPubkey(self, privkey: bytes) -> bytes:
@@ -209,7 +205,7 @@ class Secp256k1Interface(CoinInterface, AdaptorSigInterface):
 
     def verifyKey(self, k: bytes) -> bool:
         i = b2i(k)
-        return (i < ep.o and i > 0)
+        return i < ep.o and i > 0
 
     def verifyPubkey(self, pubkey_bytes: bytes) -> bool:
         return verify_secp256k1_point(pubkey_bytes)

basicswap/interface/contrib/bch_test_framework/cashaddress.py

@@ -0,0 +1,247 @@
+import unittest
+
+
+CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"
+
+def polymod(values):
+    chk = 1
+    generator = [
+        (0x01, 0x98F2BC8E61),
+        (0x02, 0x79B76D99E2),
+        (0x04, 0xF33E5FB3C4),
+        (0x08, 0xAE2EABE2A8),
+        (0x10, 0x1E4F43E470),
+    ]
+    for value in values:
+        top = chk >> 35
+        chk = ((chk & 0x07FFFFFFFF) << 5) ^ value
+        for i in generator:
+            if top & i[0] != 0:
+                chk ^= i[1]
+    return chk ^ 1
+
+
+def calculate_checksum(prefix, payload):
+    poly = polymod(prefix_expand(prefix) + payload + [0, 0, 0, 0, 0, 0, 0, 0])
+    out = list()
+    for i in range(8):
+        out.append((poly >> 5 * (7 - i)) & 0x1F)
+    return out
+
+
+def verify_checksum(prefix, payload):
+    return polymod(prefix_expand(prefix) + payload) == 0
+
+
+def b32decode(inputs):
+    out = list()
+    for letter in inputs:
+        out.append(CHARSET.find(letter))
+    return out
+
+
+def b32encode(inputs):
+    out = ""
+    for char_code in inputs:
+        out += CHARSET[char_code]
+    return out
+
+
+def convertbits(data, frombits, tobits, pad=True):
+    acc = 0
+    bits = 0
+    ret = []
+    maxv = (1 << tobits) - 1
+    max_acc = (1 << (frombits + tobits - 1)) - 1
+    for value in data:
+        if value < 0 or (value >> frombits):
+            return None
+        acc = ((acc << frombits) | value) & max_acc
+        bits += frombits
+        while bits >= tobits:
+            bits -= tobits
+            ret.append((acc >> bits) & maxv)
+    if pad:
+        if bits:
+            ret.append((acc << (tobits - bits)) & maxv)
+    elif bits >= frombits or ((acc << (tobits - bits)) & maxv):
+        return None
+    return ret
+
+
+def prefix_expand(prefix):
+    return [ord(x) & 0x1F for x in prefix] + [0]
+
+
+class Address:
+    """
+    Class to handle CashAddr.
+
+    :param version: Version of CashAddr
+    :type version: ``str``
+    :param payload: Payload of CashAddr as int list of the bytearray
+    :type payload: ``list`` of ``int``
+    """
+
+    VERSIONS = {
+        "P2SH20": {"prefix": "bitcoincash", "version_bit": 8, "network": "mainnet"},
+        "P2SH32": {"prefix": "bitcoincash", "version_bit": 11, "network": "mainnet"},
+        "P2PKH": {"prefix": "bitcoincash", "version_bit": 0, "network": "mainnet"},
+        "P2SH20-TESTNET": {"prefix": "bchtest", "version_bit": 8, "network": "testnet"},
+        "P2SH32-TESTNET": {
+            "prefix": "bchtest",
+            "version_bit": 11,
+            "network": "testnet",
+        },
+        "P2PKH-TESTNET": {"prefix": "bchtest", "version_bit": 0, "network": "testnet"},
+        "P2SH20-REGTEST": {"prefix": "bchreg", "version_bit": 8, "network": "regtest"},
+        "P2SH32-REGTEST": {"prefix": "bchreg", "version_bit": 11, "network": "regtest"},
+        "P2PKH-REGTEST": {"prefix": "bchreg", "version_bit": 0, "network": "regtest"},
+        "P2SH20-CATKN": {
+            "prefix": "bitcoincash",
+            "version_bit": 24,
+            "network": "mainnet",
+        },
+        "P2SH32-CATKN": {
+            "prefix": "bitcoincash",
+            "version_bit": 27,
+            "network": "mainnet",
+        },
+        "P2PKH-CATKN": {
+            "prefix": "bitcoincash",
+            "version_bit": 16,
+            "network": "mainnet",
+        },
+        "P2SH20-CATKN-TESTNET": {
+            "prefix": "bchtest",
+            "version_bit": 24,
+            "network": "testnet",
+        },
+        "P2SH32-CATKN-TESTNET": {
+            "prefix": "bchtest",
+            "version_bit": 27,
+            "network": "testnet",
+        },
+        "P2PKH-CATKN-TESTNET": {
+            "prefix": "bchtest",
+            "version_bit": 16,
+            "network": "testnet",
+        },
+        "P2SH20-CATKN-REGTEST": {
+            "prefix": "bchreg",
+            "version_bit": 24,
+            "network": "regtest",
+        },
+        "P2SH32-CATKN-REGTEST": {
+            "prefix": "bchreg",
+            "version_bit": 27,
+            "network": "regtest",
+        },
+        "P2PKH-CATKN-REGTEST": {
+            "prefix": "bchreg",
+            "version_bit": 16,
+            "network": "regtest",
+        },
+    }
+
+    VERSION_SUFFIXES = {"bitcoincash": "", "bchtest": "-TESTNET", "bchreg": "-REGTEST"}
+
+    ADDRESS_TYPES = {
+        0: "P2PKH",
+        8: "P2SH20",
+        11: "P2SH32",
+        16: "P2PKH-CATKN",
+        24: "P2SH20-CATKN",
+        27: "P2SH32-CATKN",
+    }
+
+    def __init__(self, version, payload):
+        if version not in Address.VERSIONS:
+            raise ValueError("Invalid address version provided")
+
+        self.version = version
+        self.payload = payload
+        self.prefix = Address.VERSIONS[self.version]["prefix"]
+
+    def __str__(self):
+        return (
+            f"version: {self.version}\npayload: {self.payload}\nprefix: {self.prefix}"
+        )
+
+    def __repr__(self):
+        return f"Address('{self.cash_address()}')"
+
+    def __eq__(self, other):
+        if isinstance(other, str):
+            return self.cash_address() == other
+        elif isinstance(other, Address):
+            return self.cash_address() == other.cash_address()
+        else:
+            raise ValueError(
+                "Address can be compared to a string address"
+                " or an instance of Address"
+            )
+
+    def cash_address(self):
+        """
+        Generate CashAddr of the Address
+
+        :rtype: ``str``
+        """
+        version_bit = Address.VERSIONS[self.version]["version_bit"]
+        payload = [version_bit] + list(self.payload)
+        payload = convertbits(payload, 8, 5)
+        checksum = calculate_checksum(self.prefix, payload)
+        return self.prefix + ":" + b32encode(payload + checksum)
+
+    @staticmethod
+    def from_string(address):
+        """
+        Generate Address from a cashadress string
+
+        :param scriptcode: The cashaddress string
+        :type scriptcode: ``str``
+        :returns: Instance of :class:~bitcash.cashaddress.Address
+        """
+        try:
+            address = str(address)
+        except Exception:
+            raise ValueError("Expected string as input")
+
+        if address.upper() != address and address.lower() != address:
+            raise ValueError(
+                "Cash address contains uppercase and lowercase characters: " + address
+            )
+
+        address = address.lower()
+        colon_count = address.count(":")
+        if colon_count == 0:
+            raise ValueError("Cash address is missing prefix")
+        if colon_count > 1:
+            raise ValueError("Cash address contains more than one colon character")
+
+        prefix, base32string = address.split(":")
+        decoded = b32decode(base32string)
+
+        if not verify_checksum(prefix, decoded):
+            raise ValueError(
+                "Bad cash address checksum for address {}".format(address)
+            )
+        converted = convertbits(decoded, 5, 8)
+
+        try:
+            version = Address.ADDRESS_TYPES[converted[0]]
+        except Exception:
+            raise ValueError("Could not determine address version")
+
+        version += Address.VERSION_SUFFIXES[prefix]
+
+        payload = converted[1:-6]
+        return Address(version, payload)
+
+class TestFrameworkScript(unittest.TestCase):
+    def test_base58encodedecode(self):
+        def check_cashaddress(address: str):
+            self.assertEqual(Address.from_string(address).cash_address(), address)
+    
+        check_cashaddress("bitcoincash:qzfyvx77v2pmgc0vulwlfkl3uzjgh5gnmqk5hhyaa6")

basicswap/interface/contrib/bch_test_framework/script.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2024 tecnovert
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+
+from basicswap.contrib.test_framework.script import CScriptOp
+
+
+OP_TXINPUTCOUNT = CScriptOp(0xc3)
+OP_1 = CScriptOp(0x51)
+OP_NUMEQUALVERIFY = CScriptOp(0x9d)
+OP_TXOUTPUTCOUNT = CScriptOp(0xc4)
+OP_0 = CScriptOp(0x00)
+OP_UTXOVALUE = CScriptOp(0xc6)
+OP_OUTPUTVALUE = CScriptOp(0xcc)
+OP_SUB = CScriptOp(0x94)
+OP_UTXOTOKENCATEGORY = CScriptOp(0xce)
+OP_OUTPUTTOKENCATEGORY = CScriptOp(0xd1)
+OP_EQUALVERIFY = CScriptOp(0x88)
+OP_UTXOTOKENCOMMITMENT = CScriptOp(0xcf)
+OP_OUTPUTTOKENCOMMITMENT = CScriptOp(0xd2)
+OP_UTXOTOKENAMOUNT = CScriptOp(0xd0)
+OP_OUTPUTTOKENAMOUNT = CScriptOp(0xd3)
+OP_INPUTSEQUENCENUMBER = CScriptOp(0xcb)
+OP_NOTIF = CScriptOp(0x64)
+OP_OUTPUTBYTECODE = CScriptOp(0xcd)
+OP_OVER = CScriptOp(0x78)
+OP_CHECKDATASIG = CScriptOp(0xba)
+OP_CHECKDATASIGVERIFY = CScriptOp(0xbb)
+OP_ELSE = CScriptOp(0x67)
+OP_CHECKSEQUENCEVERIFY = CScriptOp(0xb2)
+OP_DROP = CScriptOp(0x75)
+OP_EQUAL = CScriptOp(0x87)
+OP_ENDIF = CScriptOp(0x68)
+OP_HASH256 = CScriptOp(0xaa)
+OP_PUSHBYTES_32 = CScriptOp(0x20)
+OP_DUP = CScriptOp(0x76)
+OP_HASH160 = CScriptOp(0xa9)
+OP_CHECKSIG = CScriptOp(0xac)
+OP_SHA256 = CScriptOp(0xa8)
+OP_VERIFY = CScriptOp(0x69)

basicswap/interface/contrib/firo_test_framework/mininode.py

@@ -521,7 +521,7 @@ class CTransaction(object):
             self.hash = tx.hash
             self.wit = copy.deepcopy(tx.wit)
 
-    def deserialize(self, f):
+    def deserialize(self, f, allow_witness: bool = True):
         ver32bit = struct.unpack("<i", f.read(4))[0]
         self.nVersion = ver32bit & 0xffff
         self.nType = (ver32bit >> 16) & 0xffff

basicswap/interface/contrib/nav_test_framework/mininode.py

@@ -455,12 +455,12 @@ class CTransaction(object):
             self.wit = copy.deepcopy(tx.wit)
             self.strDZeel = copy.deepcopy(tx.strDZeel)
 
-    def deserialize(self, f):
+    def deserialize(self, f, allow_witness: bool = True):
         self.nVersion = struct.unpack("<i", f.read(4))[0]
         self.nTime = struct.unpack("<i", f.read(4))[0]
         self.vin = deser_vector(f, CTxIn)
         flags = 0
-        if len(self.vin) == 0:
+        if len(self.vin) == 0 and allow_witness:
             flags = struct.unpack("<B", f.read(1))[0]
             # Not sure why flags can't be zero, but this
             # matches the implementation in bitcoind

basicswap/interface/contrib/pivx_test_framework/messages.py

@@ -505,7 +505,7 @@ class CTransaction:
             self.sha256 = tx.sha256
             self.hash = tx.hash
 
-    def deserialize(self, f):
+    def deserialize(self, f, allow_witness: bool = True):
         self.nVersion = struct.unpack("<h", f.read(2))[0]
         self.nType = struct.unpack("<h", f.read(2))[0]
         self.vin = deser_vector(f, CTxIn)

basicswap/interface/dash.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2024 tecnovert
+# Copyright (c) 2024 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -11,7 +12,10 @@ from basicswap.util.address import decodeAddress
 from basicswap.contrib.mnemonic import Mnemonic
 from basicswap.contrib.test_framework.script import (
     CScript,
-    OP_DUP, OP_HASH160, OP_EQUALVERIFY, OP_CHECKSIG
+    OP_DUP,
+    OP_HASH160,
+    OP_EQUALVERIFY,
+    OP_CHECKSIG,
 )
 
 
@@ -22,41 +26,53 @@ class DASHInterface(BTCInterface):
 
     def __init__(self, coin_settings, network, swap_client=None):
         super().__init__(coin_settings, network, swap_client)
-        self._wallet_passphrase = ''
+        self._wallet_passphrase = ""
         self._have_checked_seed = False
 
-        self._wallet_v20_compatible = False if not swap_client else swap_client.getChainClientSettings(self.coin_type()).get('wallet_v20_compatible', False)
+        self._wallet_v20_compatible = (
+            False
+            if not swap_client
+            else swap_client.getChainClientSettings(self.coin_type()).get(
+                "wallet_v20_compatible", False
+            )
+        )
 
     def decodeAddress(self, address: str) -> bytes:
         return decodeAddress(address)[1:]
 
     def getWalletSeedID(self) -> str:
-        hdseed: str = self.rpc_wallet('dumphdinfo')['hdseed']
+        hdseed: str = self.rpc_wallet("dumphdinfo")["hdseed"]
         return self.getSeedHash(bytes.fromhex(hdseed)).hex()
 
     def entropyToMnemonic(self, key: bytes) -> None:
-        return Mnemonic('english').to_mnemonic(key)
+        return Mnemonic("english").to_mnemonic(key)
 
-    def initialiseWallet(self, key_bytes: bytes) -> None:
+    def initialiseWallet(self, key_bytes: bytes, restore_time: int = -1) -> None:
         self._have_checked_seed = False
         if self._wallet_v20_compatible:
-            self._log.warning('Generating wallet compatible with v20 seed.')
+            self._log.warning("Generating wallet compatible with v20 seed.")
             words = self.entropyToMnemonic(key_bytes)
-            mnemonic_passphrase = ''
-            self.rpc_wallet('upgradetohd', [words, mnemonic_passphrase, self._wallet_passphrase])
+            mnemonic_passphrase = ""
+            self.rpc_wallet(
+                "upgradetohd", [words, mnemonic_passphrase, self._wallet_passphrase]
+            )
             self._have_checked_seed = False
-            if self._wallet_passphrase != '':
+            if self._wallet_passphrase != "":
                 self.unlockWallet(self._wallet_passphrase)
             return
 
         key_wif = self.encodeKey(key_bytes)
-        self.rpc_wallet('sethdseed', [True, key_wif])
+        self.rpc_wallet("sethdseed", [True, key_wif])
 
     def checkExpectedSeed(self, expect_seedid: str) -> bool:
         self._expect_seedid_hex = expect_seedid
-        rv = self.rpc_wallet('dumphdinfo')
-        if rv['mnemonic'] != '':
-            entropy = Mnemonic('english').to_entropy(rv['mnemonic'].split(' '))
+        try:
+            rv = self.rpc_wallet("dumphdinfo")
+        except Exception as e:
+            self._log.debug(f"DASH dumphdinfo failed {e}.")
+            return False
+        if rv["mnemonic"] != "":
+            entropy = Mnemonic("english").to_entropy(rv["mnemonic"].split(" "))
             entropy_hash = self.getAddressHashFromKey(entropy)[::-1].hex()
             have_expected_seed: bool = expect_seedid == entropy_hash
         else:
@@ -65,11 +81,11 @@ class DASHInterface(BTCInterface):
         return have_expected_seed
 
     def withdrawCoin(self, value, addr_to, subfee):
-        params = [addr_to, value, '', '', subfee, False, False, self._conf_target]
-        return self.rpc_wallet('sendtoaddress', params)
+        params = [addr_to, value, "", "", subfee, False, False, self._conf_target]
+        return self.rpc_wallet("sendtoaddress", params)
 
     def getSpendableBalance(self) -> int:
-        return self.make_int(self.rpc_wallet('getwalletinfo')['balance'])
+        return self.make_int(self.rpc_wallet("getwalletinfo")["balance"])
 
     def getScriptForPubkeyHash(self, pkh: bytes) -> bytearray:
         # Return P2PKH
@@ -79,34 +95,65 @@ class DASHInterface(BTCInterface):
         add_bytes = 107
         size = len(tx.serialize_with_witness()) + add_bytes
         pay_fee = round(fee_rate * size / 1000)
-        self._log.info(f'BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}.')
+        self._log.info(
+            f"BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}."
+        )
         return pay_fee
 
     def findTxnByHash(self, txid_hex: str):
         # Only works for wallet txns
         try:
-            rv = self.rpc_wallet('gettransaction', [txid_hex])
-        except Exception as ex:
-            self._log.debug('findTxnByHash getrawtransaction failed: {}'.format(txid_hex))
+            rv = self.rpc_wallet("gettransaction", [txid_hex])
+        except Exception as e:  # noqa: F841
+            self._log.debug(
+                "findTxnByHash getrawtransaction failed: {}".format(txid_hex)
+            )
             return None
-        if 'confirmations' in rv and rv['confirmations'] >= self.blocks_confirmed:
-            block_height = self.getBlockHeader(rv['blockhash'])['height']
-            return {'txid': txid_hex, 'amount': 0, 'height': block_height}
+        if "confirmations" in rv and rv["confirmations"] >= self.blocks_confirmed:
+            block_height = self.getBlockHeader(rv["blockhash"])["height"]
+            return {"txid": txid_hex, "amount": 0, "height": block_height}
 
         return None
 
-    def unlockWallet(self, password: str):
-        super().unlockWallet(password)
+    def unlockWallet(self, password: str, check_seed: bool = True) -> None:
+        super().unlockWallet(password, check_seed)
         if self._wallet_v20_compatible:
             # Store password for initialiseWallet
             self._wallet_passphrase = password
-        if not self._have_checked_seed:
-            try:
-                self._sc.checkWalletSeed(self.coin_type())
-            except Exception as ex:
-                # dumphdinfo can fail if the wallet is not initialised
-                self._log.debug(f'DASH checkWalletSeed failed: {ex}.')
 
     def lockWallet(self):
         super().lockWallet()
-        self._wallet_passphrase = ''
+        self._wallet_passphrase = ""
+
+    def encryptWallet(
+        self, old_password: str, new_password: str, check_seed: bool = True
+    ):
+        if old_password != "":
+            self.unlockWallet(old_password, check_seed=False)
+        seed_id_before: str = self.getWalletSeedID()
+
+        self.rpc_wallet("encryptwallet", [new_password])
+
+        if check_seed is False or seed_id_before == "Not found":
+            return
+        self.unlockWallet(new_password, check_seed=False)
+        seed_id_after: str = self.getWalletSeedID()
+
+        self.lockWallet()
+        if seed_id_before == seed_id_after:
+            return
+        self._log.warning(f"{self.ticker()} wallet seed changed after encryption.")
+        self._log.debug(
+            f"seed_id_before: {seed_id_before} seed_id_after: {seed_id_after}."
+        )
+        self.setWalletSeedWarning(True)
+
+    def changeWalletPassword(
+        self, old_password: str, new_password: str, check_seed_if_encrypt: bool = True
+    ):
+        self._log.info("changeWalletPassword - {}".format(self.ticker()))
+        if old_password == "":
+            if self.isWalletEncrypted():
+                raise ValueError("Old password must be set")
+            return self.encryptWallet(old_password, new_password, check_seed_if_encrypt)
+        self.rpc_wallet("walletpassphrasechange", [old_password, new_password])

basicswap/interface/dcr/__init__.py

@@ -1,4 +1,5 @@
-
 from .dcr import DCRInterface
 
-__all__ = ['DCRInterface',]
+__all__ = [
+    "DCRInterface",
+]

basicswap/interface/dcr/messages.py

@@ -23,7 +23,7 @@ class SigHashType(IntEnum):
     SigHashSingle = 0x3
     SigHashAnyOneCanPay = 0x80
 
-    SigHashMask = 0x1f
+    SigHashMask = 0x1F
 
 
 class SignatureType(IntEnum):
@@ -33,7 +33,7 @@ class SignatureType(IntEnum):
 
 
 class COutPoint:
-    __slots__ = ('hash', 'n', 'tree')
+    __slots__ = ("hash", "n", "tree")
 
     def __init__(self, hash=0, n=0, tree=0):
         self.hash = hash
@@ -41,24 +41,30 @@ class COutPoint:
         self.tree = tree
 
     def get_hash(self) -> bytes:
-        return self.hash.to_bytes(32, 'big')
+        return self.hash.to_bytes(32, "big")
 
 
 class CTxIn:
-    __slots__ = ('prevout', 'sequence',
-                 'value_in', 'block_height', 'block_index', 'signature_script')  # Witness
+    __slots__ = (
+        "prevout",
+        "sequence",
+        "value_in",
+        "block_height",
+        "block_index",
+        "signature_script",
+    )  # Witness
 
     def __init__(self, prevout=COutPoint(), sequence=0):
         self.prevout = prevout
         self.sequence = sequence
         self.value_in = -1
         self.block_height = 0
-        self.block_index = 0xffffffff
+        self.block_index = 0xFFFFFFFF
         self.signature_script = bytes()
 
 
 class CTxOut:
-    __slots__ = ('value', 'version', 'script_pubkey')
+    __slots__ = ("value", "version", "script_pubkey")
 
     def __init__(self, value=0, script_pubkey=bytes()):
         self.value = value
@@ -67,7 +73,7 @@ class CTxOut:
 
 
 class CTransaction:
-    __slots__ = ('hash', 'version', 'vin', 'vout', 'locktime', 'expiry')
+    __slots__ = ("hash", "version", "vin", "vout", "locktime", "expiry")
 
     def __init__(self, tx=None):
         if tx is None:
@@ -83,10 +89,10 @@ class CTransaction:
             self.locktime = tx.locktime
             self.expiry = tx.expiry
 
-    def deserialize(self, data: bytes) -> None:
+    def deserialize(self, data: bytes, allow_witness: bool = True) -> None:
 
-        version = int.from_bytes(data[:4], 'little')
-        self.version = version & 0xffff
+        version = int.from_bytes(data[:4], "little")
+        self.version = version & 0xFFFF
         ser_type: int = version >> 16
         o = 4
 
@@ -97,13 +103,13 @@ class CTransaction:
             for i in range(num_txin):
                 txi = CTxIn()
                 txi.prevout = COutPoint()
-                txi.prevout.hash = int.from_bytes(data[o:o + 32], 'little')
+                txi.prevout.hash = int.from_bytes(data[o : o + 32], "little")
                 o += 32
-                txi.prevout.n = int.from_bytes(data[o:o + 4], 'little')
+                txi.prevout.n = int.from_bytes(data[o : o + 4], "little")
                 o += 4
                 txi.prevout.tree = data[o]
                 o += 1
-                txi.sequence = int.from_bytes(data[o:o + 4], 'little')
+                txi.sequence = int.from_bytes(data[o : o + 4], "little")
                 o += 4
                 self.vin.append(txi)
 
@@ -112,19 +118,19 @@ class CTransaction:
 
             for i in range(num_txout):
                 txo = CTxOut()
-                txo.value = int.from_bytes(data[o:o + 8], 'little')
+                txo.value = int.from_bytes(data[o : o + 8], "little")
                 o += 8
-                txo.version = int.from_bytes(data[o:o + 2], 'little')
+                txo.version = int.from_bytes(data[o : o + 2], "little")
                 o += 2
                 script_bytes, nb = decode_compactsize(data, o)
                 o += nb
-                txo.script_pubkey = data[o:o + script_bytes]
+                txo.script_pubkey = data[o : o + script_bytes]
                 o += script_bytes
                 self.vout.append(txo)
 
-            self.locktime = int.from_bytes(data[o:o + 4], 'little')
+            self.locktime = int.from_bytes(data[o : o + 4], "little")
             o += 4
-            self.expiry = int.from_bytes(data[o:o + 4], 'little')
+            self.expiry = int.from_bytes(data[o : o + 4], "little")
             o += 4
 
         if ser_type == TxSerializeType.NoWitness:
@@ -137,51 +143,53 @@ class CTransaction:
             self.vin = [CTxIn() for _ in range(num_wit_scripts)]
         else:
             if num_wit_scripts != len(self.vin):
-                raise ValueError('non equal witness and prefix txin quantities')
+                raise ValueError("non equal witness and prefix txin quantities")
 
         for i in range(num_wit_scripts):
             txi = self.vin[i]
-            txi.value_in = int.from_bytes(data[o:o + 8], 'little')
+            txi.value_in = int.from_bytes(data[o : o + 8], "little")
             o += 8
-            txi.block_height = int.from_bytes(data[o:o + 4], 'little')
+            txi.block_height = int.from_bytes(data[o : o + 4], "little")
             o += 4
-            txi.block_index = int.from_bytes(data[o:o + 4], 'little')
+            txi.block_index = int.from_bytes(data[o : o + 4], "little")
             o += 4
             script_bytes, nb = decode_compactsize(data, o)
             o += nb
-            txi.signature_script = data[o:o + script_bytes]
+            txi.signature_script = data[o : o + script_bytes]
             o += script_bytes
 
     def serialize(self, ser_type=TxSerializeType.Full) -> bytes:
         data = bytes()
-        version = (self.version & 0xffff) | (ser_type << 16)
-        data += version.to_bytes(4, 'little')
+        version = (self.version & 0xFFFF) | (ser_type << 16)
+        data += version.to_bytes(4, "little")
 
         if ser_type == TxSerializeType.Full or ser_type == TxSerializeType.NoWitness:
             data += encode_compactsize(len(self.vin))
             for txi in self.vin:
-                data += txi.prevout.hash.to_bytes(32, 'little')
-                data += txi.prevout.n.to_bytes(4, 'little')
-                data += txi.prevout.tree.to_bytes(1, 'little')
-                data += txi.sequence.to_bytes(4, 'little')
+                data += txi.prevout.hash.to_bytes(32, "little")
+                data += txi.prevout.n.to_bytes(4, "little")
+                data += txi.prevout.tree.to_bytes(1, "little")
+                data += txi.sequence.to_bytes(4, "little")
 
             data += encode_compactsize(len(self.vout))
             for txo in self.vout:
-                data += txo.value.to_bytes(8, 'little')
-                data += txo.version.to_bytes(2, 'little')
+                data += txo.value.to_bytes(8, "little")
+                data += txo.version.to_bytes(2, "little")
                 data += encode_compactsize(len(txo.script_pubkey))
                 data += txo.script_pubkey
 
-            data += self.locktime.to_bytes(4, 'little')
-            data += self.expiry.to_bytes(4, 'little')
+            data += self.locktime.to_bytes(4, "little")
+            data += self.expiry.to_bytes(4, "little")
 
         if ser_type == TxSerializeType.Full or ser_type == TxSerializeType.OnlyWitness:
             data += encode_compactsize(len(self.vin))
             for txi in self.vin:
-                tc_value_in = txi.value_in & 0xffffffffffffffff  # Convert negative values
-                data += tc_value_in.to_bytes(8, 'little')
-                data += txi.block_height.to_bytes(4, 'little')
-                data += txi.block_index.to_bytes(4, 'little')
+                tc_value_in = (
+                    txi.value_in & 0xFFFFFFFFFFFFFFFF
+                )  # Convert negative values
+                data += tc_value_in.to_bytes(8, "little")
+                data += txi.block_height.to_bytes(4, "little")
+                data += txi.block_index.to_bytes(4, "little")
                 data += encode_compactsize(len(txi.signature_script))
                 data += txi.signature_script
 
@@ -191,10 +199,10 @@ class CTransaction:
         return blake256(self.serialize(TxSerializeType.NoWitness))[::-1]
 
     def TxHashWitness(self) -> bytes:
-        raise ValueError('todo')
+        raise ValueError("todo")
 
     def TxHashFull(self) -> bytes:
-        raise ValueError('todo')
+        raise ValueError("todo")
 
 
 def findOutput(tx, script_pk: bytes):

basicswap/interface/dcr/rpc.py

@@ -9,39 +9,39 @@ import traceback
 from basicswap.rpc import Jsonrpc
 
 
-def callrpc(rpc_port, auth, method, params=[], host='127.0.0.1'):
+def callrpc(rpc_port, auth, method, params=[], host="127.0.0.1"):
     try:
-        url = 'http://{}@{}:{}/'.format(auth, host, rpc_port)
+        url = "http://{}@{}:{}/".format(auth, host, rpc_port)
         x = Jsonrpc(url)
         x.__handler = None
         v = x.json_request(method, params)
         x.close()
-        r = json.loads(v.decode('utf-8'))
+        r = json.loads(v.decode("utf-8"))
     except Exception as ex:
         traceback.print_exc()
-        raise ValueError('RPC server error ' + str(ex) + ', method: ' + method)
+        raise ValueError("RPC server error " + str(ex) + ", method: " + method)
 
-    if 'error' in r and r['error'] is not None:
-        raise ValueError('RPC error ' + str(r['error']))
+    if "error" in r and r["error"] is not None:
+        raise ValueError("RPC error " + str(r["error"]))
 
-    return r['result']
+    return r["result"]
 
 
-def openrpc(rpc_port, auth, host='127.0.0.1'):
+def openrpc(rpc_port, auth, host="127.0.0.1"):
     try:
-        url = 'http://{}@{}:{}/'.format(auth, host, rpc_port)
+        url = "http://{}@{}:{}/".format(auth, host, rpc_port)
         return Jsonrpc(url)
     except Exception as ex:
         traceback.print_exc()
-        raise ValueError('RPC error ' + str(ex))
+        raise ValueError("RPC error " + str(ex))
 
 
-def make_rpc_func(port, auth, host='127.0.0.1'):
+def make_rpc_func(port, auth, host="127.0.0.1"):
     port = port
     auth = auth
     host = host
 
     def rpc_func(method, params=None):
-        nonlocal port, auth, host
         return callrpc(port, auth, method, params, host)
+
     return rpc_func

basicswap/interface/dcr/script.py

@@ -7,7 +7,7 @@
 
 OP_0 = 0x00
 OP_DATA_1 = 0x01
-OP_1NEGATE = 0x4f
+OP_1NEGATE = 0x4F
 OP_1 = 0x51
 OP_IF = 0x63
 OP_ELSE = 0x67
@@ -16,13 +16,13 @@ OP_DROP = 0x75
 OP_DUP = 0x76
 OP_EQUAL = 0x87
 OP_EQUALVERIFY = 0x88
-OP_PUSHDATA1 = 0x4c
-OP_PUSHDATA2 = 0x4d
-OP_PUSHDATA4 = 0x4e
-OP_HASH160 = 0xa9
-OP_CHECKSIG = 0xac
-OP_CHECKMULTISIG = 0xae
-OP_CHECKSEQUENCEVERIFY = 0xb2
+OP_PUSHDATA1 = 0x4C
+OP_PUSHDATA2 = 0x4D
+OP_PUSHDATA4 = 0x4E
+OP_HASH160 = 0xA9
+OP_CHECKSIG = 0xAC
+OP_CHECKMULTISIG = 0xAE
+OP_CHECKSEQUENCEVERIFY = 0xB2
 
 
 def push_script_data(data_array: bytearray, data: bytes) -> None:
@@ -39,12 +39,12 @@ def push_script_data(data_array: bytearray, data: bytes) -> None:
         return
 
     if len_data < OP_PUSHDATA1:
-        data_array += len_data.to_bytes(1, 'little')
-    elif len_data <= 0xff:
+        data_array += len_data.to_bytes(1, "little")
+    elif len_data <= 0xFF:
         data_array += bytes((OP_PUSHDATA1, len_data))
-    elif len_data <= 0xffff:
-        data_array += bytes((OP_PUSHDATA2,)) + len_data.to_bytes(2, 'little')
+    elif len_data <= 0xFFFF:
+        data_array += bytes((OP_PUSHDATA2,)) + len_data.to_bytes(2, "little")
     else:
-        data_array += bytes((OP_PUSHDATA4,)) + len_data.to_bytes(4, 'little')
+        data_array += bytes((OP_PUSHDATA4,)) + len_data.to_bytes(4, "little")
 
     data_array += data

basicswap/interface/dcr/util.py

@@ -10,46 +10,48 @@ import subprocess
 
 
 def createDCRWallet(args, hex_seed, logging, delay_event):
-    logging.info('Creating DCR wallet')
+    logging.info("Creating DCR wallet")
 
     (pipe_r, pipe_w) = os.pipe()  # subprocess.PIPE is buffered, blocks when read
 
-    if os.name == 'nt':
-        str_args = ' '.join(args)
-        p = subprocess.Popen(str_args, shell=True, stdin=subprocess.PIPE, stdout=pipe_w, stderr=pipe_w)
+    if os.name == "nt":
+        str_args = " ".join(args)
+        p = subprocess.Popen(
+            str_args, shell=True, stdin=subprocess.PIPE, stdout=pipe_w, stderr=pipe_w
+        )
     else:
         p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=pipe_w, stderr=pipe_w)
 
     def readOutput():
-        buf = os.read(pipe_r, 1024).decode('utf-8')
+        buf = os.read(pipe_r, 1024).decode("utf-8")
         response = None
-        if 'Opened wallet' in buf:
+        if "Opened wallet" in buf:
             pass
-        elif 'Use the existing configured private passphrase' in buf:
-            response = b'y\n'
-        elif 'Do you want to add an additional layer of encryption' in buf:
-            response = b'n\n'
-        elif 'Do you have an existing wallet seed' in buf:
-            response = b'y\n'
-        elif 'Enter existing wallet seed' in buf:
-            response = (hex_seed + '\n').encode('utf-8')
-        elif 'Seed input successful' in buf:
+        elif "Use the existing configured private passphrase" in buf:
+            response = b"y\n"
+        elif "Do you want to add an additional layer of encryption" in buf:
+            response = b"n\n"
+        elif "Do you have an existing wallet seed" in buf:
+            response = b"y\n"
+        elif "Enter existing wallet seed" in buf:
+            response = (hex_seed + "\n").encode("utf-8")
+        elif "Seed input successful" in buf:
             pass
-        elif 'Upgrading database from version' in buf:
+        elif "Upgrading database from version" in buf:
             pass
-        elif 'Ticket commitments db upgrade done' in buf:
+        elif "Ticket commitments db upgrade done" in buf:
             pass
-        elif 'The wallet has been created successfully' in buf:
+        elif "The wallet has been created successfully" in buf:
             pass
         else:
-            raise ValueError(f'Unexpected output: {buf}')
+            raise ValueError(f"Unexpected output: {buf}")
         if response is not None:
             p.stdin.write(response)
             p.stdin.flush()
 
     try:
         while p.poll() is None:
-            if os.name == 'nt':
+            if os.name == "nt":
                 readOutput()
                 delay_event.wait(0.1)
                 continue
@@ -57,7 +59,7 @@ def createDCRWallet(args, hex_seed, logging, delay_event):
                 readOutput()
                 delay_event.wait(0.1)
     except Exception as e:
-        logging.error(f'dcrwallet --create failed: {e}')
+        logging.error(f"dcrwallet --create failed: {e}")
     finally:
         if p.poll() is None:
             p.terminate()

basicswap/interface/doge.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2024 The BasicSwap developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+from .btc import BTCInterface
+from basicswap.chainparams import Coins
+from basicswap.util.crypto import hash160
+
+from basicswap.contrib.test_framework.script import (
+    CScript,
+    OP_DUP,
+    OP_CHECKSIG,
+    OP_HASH160,
+    OP_EQUAL,
+    OP_EQUALVERIFY,
+)
+
+
+class DOGEInterface(BTCInterface):
+    @staticmethod
+    def coin_type():
+        return Coins.DOGE
+
+    @staticmethod
+    def est_lock_tx_vsize() -> int:
+        return 192
+
+    @staticmethod
+    def xmr_swap_b_lock_spend_tx_vsize() -> int:
+        return 192
+
+    def __init__(self, coin_settings, network, swap_client=None):
+        super(DOGEInterface, self).__init__(coin_settings, network, swap_client)
+
+    def getScriptDest(self, script: bytearray) -> bytearray:
+        # P2SH
+
+        script_hash = hash160(script)
+        assert len(script_hash) == 20
+
+        return CScript([OP_HASH160, script_hash, OP_EQUAL])
+
+    def getScriptForPubkeyHash(self, pkh: bytes) -> bytearray:
+        # Return P2PKH
+        return CScript([OP_DUP, OP_HASH160, pkh, OP_EQUALVERIFY, OP_CHECKSIG])
+
+    def encodeScriptDest(self, script_dest: bytes) -> str:
+        # Extract hash from script
+        script_hash = script_dest[2:-1]
+        return self.sh_to_address(script_hash)
+
+    def getBLockSpendTxFee(self, tx, fee_rate: int) -> int:
+        add_bytes = 107
+        size = len(tx.serialize_with_witness()) + add_bytes
+        pay_fee = round(fee_rate * size / 1000)
+        self._log.info(
+            f"BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}."
+        )
+        return pay_fee

basicswap/interface/firo.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022-2023 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -40,20 +41,45 @@ class FIROInterface(BTCInterface):
     def __init__(self, coin_settings, network, swap_client=None):
         super(FIROInterface, self).__init__(coin_settings, network, swap_client)
         # No multiwallet support
-        self.rpc_wallet = make_rpc_func(self._rpcport, self._rpcauth, host=self._rpc_host)
+        self.rpc_wallet = make_rpc_func(
+            self._rpcport, self._rpcauth, host=self._rpc_host
+        )
+        self.rpc_wallet_watch = self.rpc_wallet
 
-    def getExchangeName(self, exchange_name):
-        return 'zcoin'
+        if "wallet_name" in coin_settings:
+            raise ValueError(f"Invalid setting for {self.coin_name()}: wallet_name")
 
-    def initialiseWallet(self, key):
+    def getExchangeName(self, exchange_name: str) -> str:
+        return "zcoin"
+
+    def initialiseWallet(self, key, restore_time: int = -1):
         # load with -hdseed= parameter
         pass
 
     def checkWallets(self) -> int:
         return 1
 
-    def getNewAddress(self, use_segwit, label='swap_receive'):
-        return self.rpc('getnewaddress', [label])
+    def encryptWallet(self, password: str, check_seed: bool = True):
+        # Watchonly wallets are not encrypted
+        # Firo shuts down after encryptwallet
+        seed_id_before: str = self.getWalletSeedID() if check_seed else "Not found"
+
+        self.rpc_wallet("encryptwallet", [password])
+
+        if check_seed is False or seed_id_before == "Not found":
+            return
+        seed_id_after: str = self.getWalletSeedID()
+
+        if seed_id_before == seed_id_after:
+            return
+        self._log.warning(f"{self.ticker()} wallet seed changed after encryption.")
+        self._log.debug(
+            f"seed_id_before: {seed_id_before} seed_id_after: {seed_id_after}."
+        )
+        self.setWalletSeedWarning(True)
+
+    def getNewAddress(self, use_segwit, label="swap_receive"):
+        return self.rpc("getnewaddress", [label])
         # addr_plain = self.rpc('getnewaddress', [label])
         # return self.rpc('addwitnessaddress', [addr_plain])
 
@@ -61,20 +87,20 @@ class FIROInterface(BTCInterface):
         return decodeAddress(address)[1:]
 
     def encodeSegwitAddress(self, script):
-        raise ValueError('TODO')
+        raise ValueError("TODO")
 
     def decodeSegwitAddress(self, addr):
-        raise ValueError('TODO')
+        raise ValueError("TODO")
 
     def isWatchOnlyAddress(self, address):
-        addr_info = self.rpc('validateaddress', [address])
-        return addr_info['iswatchonly']
+        addr_info = self.rpc("validateaddress", [address])
+        return addr_info["iswatchonly"]
 
     def isAddressMine(self, address: str, or_watch_only: bool = False) -> bool:
-        addr_info = self.rpc('validateaddress', [address])
+        addr_info = self.rpc("validateaddress", [address])
         if not or_watch_only:
-            return addr_info['ismine']
-        return addr_info['ismine'] or addr_info['iswatchonly']
+            return addr_info["ismine"]
+        return addr_info["ismine"] or addr_info["iswatchonly"]
 
     def getSCLockScriptAddress(self, lock_script: bytes) -> str:
         lock_tx_dest = self.getScriptDest(lock_script)
@@ -82,58 +108,85 @@ class FIROInterface(BTCInterface):
 
         if not self.isAddressMine(address, or_watch_only=True):
             # Expects P2WSH nested in BIP16_P2SH
-            ro = self.rpc('importaddress', [lock_tx_dest.hex(), 'bid lock', False, True])
-            addr_info = self.rpc('validateaddress', [address])
+            self.rpc("importaddress", [lock_tx_dest.hex(), "bid lock", False, True])
 
         return address
 
-    def getLockTxHeight(self, txid, dest_address, bid_amount, rescan_from, find_index: bool = False, vout: int = -1):
+    def getLockTxHeight(
+        self,
+        txid,
+        dest_address,
+        bid_amount,
+        rescan_from,
+        find_index: bool = False,
+        vout: int = -1,
+    ):
         # Add watchonly address and rescan if required
 
         if not self.isAddressMine(dest_address, or_watch_only=True):
-            self.importWatchOnlyAddress(dest_address, 'bid')
-            self._log.info('Imported watch-only addr: {}'.format(dest_address))
-            self._log.info('Rescanning {} chain from height: {}'.format(self.coin_name(), rescan_from))
+            self.importWatchOnlyAddress(dest_address, "bid")
+            self._log.info(
+                "Imported watch-only addr: {}".format(self._log.addr(dest_address))
+            )
+            self._log.info(
+                "Rescanning {} chain from height: {}".format(
+                    self.coin_name(), rescan_from
+                )
+            )
             self.rescanBlockchainForAddress(rescan_from, dest_address)
 
         return_txid = True if txid is None else False
         if txid is None:
-            txns = self.rpc('listunspent', [0, 9999999, [dest_address, ]])
+            txns = self.rpc(
+                "listunspent",
+                [
+                    0,
+                    9999999,
+                    [
+                        dest_address,
+                    ],
+                ],
+            )
 
             for tx in txns:
-                if self.make_int(tx['amount']) == bid_amount:
-                    txid = bytes.fromhex(tx['txid'])
+                if self.make_int(tx["amount"]) == bid_amount:
+                    txid = bytes.fromhex(tx["txid"])
                     break
 
         if txid is None:
             return None
 
         try:
-            tx = self.rpc('gettransaction', [txid.hex()])
+            tx = self.rpc("gettransaction", [txid.hex()])
 
             block_height = 0
-            if 'blockhash' in tx:
-                block_header = self.rpc('getblockheader', [tx['blockhash']])
-                block_height = block_header['height']
+            if "blockhash" in tx:
+                block_header = self.rpc("getblockheader", [tx["blockhash"]])
+                block_height = block_header["height"]
 
             rv = {
-                'depth': 0 if 'confirmations' not in tx else tx['confirmations'],
-                'height': block_height}
+                "depth": 0 if "confirmations" not in tx else tx["confirmations"],
+                "height": block_height,
+            }
 
         except Exception as e:
-            self._log.debug('getLockTxHeight gettransaction failed: %s, %s', txid.hex(), str(e))
+            self._log.debug(
+                "getLockTxHeight gettransaction failed: %s, %s", txid.hex(), str(e)
+            )
             return None
 
         if find_index:
-            tx_obj = self.rpc('decoderawtransaction', [tx['hex']])
-            rv['index'] = find_vout_for_address_from_txobj(tx_obj, dest_address)
+            tx_obj = self.rpc("decoderawtransaction", [tx["hex"]])
+            rv["index"] = find_vout_for_address_from_txobj(tx_obj, dest_address)
 
         if return_txid:
-            rv['txid'] = txid.hex()
+            rv["txid"] = txid.hex()
 
         return rv
 
-    def createSCLockTx(self, value: int, script: bytearray, vkbv: bytes = None) -> bytes:
+    def createSCLockTx(
+        self, value: int, script: bytearray, vkbv: bytes = None
+    ) -> bytes:
         tx = CTransaction()
         tx.nVersion = self.txVersion()
         tx.vout.append(self.txoType()(value, self.getScriptDest(script)))
@@ -144,24 +197,36 @@ class FIROInterface(BTCInterface):
         return self.fundTx(tx_bytes, feerate)
 
     def signTxWithWallet(self, tx):
-        rv = self.rpc('signrawtransaction', [tx.hex()])
-        return bytes.fromhex(rv['hex'])
+        rv = self.rpc("signrawtransaction", [tx.hex()])
+        return bytes.fromhex(rv["hex"])
 
-    def createRawFundedTransaction(self, addr_to: str, amount: int, sub_fee: bool = False, lock_unspents: bool = True) -> str:
-        txn = self.rpc('createrawtransaction', [[], {addr_to: self.format_amount(amount)}])
+    def createRawFundedTransaction(
+        self,
+        addr_to: str,
+        amount: int,
+        sub_fee: bool = False,
+        lock_unspents: bool = True,
+    ) -> str:
+        txn = self.rpc(
+            "createrawtransaction", [[], {addr_to: self.format_amount(amount)}]
+        )
         fee_rate, fee_src = self.get_fee_rate(self._conf_target)
-        self._log.debug(f'Fee rate: {fee_rate}, source: {fee_src}, block target: {self._conf_target}')
+        self._log.debug(
+            f"Fee rate: {fee_rate}, source: {fee_src}, block target: {self._conf_target}"
+        )
         options = {
-            'lockUnspents': lock_unspents,
-            'feeRate': fee_rate,
+            "lockUnspents": lock_unspents,
+            "feeRate": fee_rate,
         }
         if sub_fee:
-            options['subtractFeeFromOutputs'] = [0,]
-        return self.rpc('fundrawtransaction', [txn, options])['hex']
+            options["subtractFeeFromOutputs"] = [
+                0,
+            ]
+        return self.rpc("fundrawtransaction", [txn, options])["hex"]
 
     def createRawSignedTransaction(self, addr_to, amount) -> str:
         txn_funded = self.createRawFundedTransaction(addr_to, amount)
-        return self.rpc('signrawtransaction', [txn_funded])['hex']
+        return self.rpc("signrawtransaction", [txn_funded])["hex"]
 
     def getScriptForPubkeyHash(self, pkh: bytes) -> bytearray:
         # Return P2PKH
@@ -188,60 +253,75 @@ class FIROInterface(BTCInterface):
         return CScript([OP_HASH160, script_hash, OP_EQUAL])
 
     def withdrawCoin(self, value, addr_to, subfee):
-        params = [addr_to, value, '', '', subfee]
-        return self.rpc('sendtoaddress', params)
+        params = [addr_to, value, "", "", subfee]
+        return self.rpc("sendtoaddress", params)
 
     def getWalletSeedID(self):
-        return self.rpc('getwalletinfo')['hdmasterkeyid']
+        return self.rpc("getwalletinfo")["hdmasterkeyid"]
 
     def getSpendableBalance(self) -> int:
-        return self.make_int(self.rpc('getwalletinfo')['balance'])
+        return self.make_int(self.rpc("getwalletinfo")["balance"])
 
     def getBLockSpendTxFee(self, tx, fee_rate: int) -> int:
         add_bytes = 107
         size = len(tx.serialize_with_witness()) + add_bytes
         pay_fee = round(fee_rate * size / 1000)
-        self._log.info(f'BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}.')
+        self._log.info(
+            f"BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}."
+        )
         return pay_fee
 
     def signTxWithKey(self, tx: bytes, key: bytes) -> bytes:
         key_wif = self.encodeKey(key)
-        rv = self.rpc('signrawtransaction', [tx.hex(), [], [key_wif, ]])
-        return bytes.fromhex(rv['hex'])
+        rv = self.rpc(
+            "signrawtransaction",
+            [
+                tx.hex(),
+                [],
+                [
+                    key_wif,
+                ],
+            ],
+        )
+        return bytes.fromhex(rv["hex"])
 
     def findTxnByHash(self, txid_hex: str):
         # Only works for wallet txns
         try:
-            rv = self.rpc('gettransaction', [txid_hex])
-        except Exception as ex:
-            self._log.debug('findTxnByHash getrawtransaction failed: {}'.format(txid_hex))
+            rv = self.rpc("gettransaction", [txid_hex])
+        except Exception as e:  # noqa: F841
+            self._log.debug(
+                "findTxnByHash getrawtransaction failed: {}".format(txid_hex)
+            )
             return None
-        if 'confirmations' in rv and rv['confirmations'] >= self.blocks_confirmed:
-            block_height = self.getBlockHeader(rv['blockhash'])['height']
-            return {'txid': txid_hex, 'amount': 0, 'height': block_height}
+        if "confirmations" in rv and rv["confirmations"] >= self.blocks_confirmed:
+            block_height = self.getBlockHeader(rv["blockhash"])["height"]
+            return {"txid": txid_hex, "amount": 0, "height": block_height}
         return None
 
     def getProofOfFunds(self, amount_for, extra_commit_bytes):
         # TODO: Lock unspent and use same output/s to fund bid
 
         unspents_by_addr = dict()
-        unspents = self.rpc('listunspent')
+        unspents = self.rpc("listunspent")
         for u in unspents:
-            if u['spendable'] is not True:
+            if u["spendable"] is not True:
                 continue
-            if u['address'] not in unspents_by_addr:
-                unspents_by_addr[u['address']] = {'total': 0, 'utxos': []}
-            utxo_amount: int = self.make_int(u['amount'], r=1)
-            unspents_by_addr[u['address']]['total'] += utxo_amount
-            unspents_by_addr[u['address']]['utxos'].append((utxo_amount, u['txid'], u['vout']))
+            if u["address"] not in unspents_by_addr:
+                unspents_by_addr[u["address"]] = {"total": 0, "utxos": []}
+            utxo_amount: int = self.make_int(u["amount"], r=1)
+            unspents_by_addr[u["address"]]["total"] += utxo_amount
+            unspents_by_addr[u["address"]]["utxos"].append(
+                (utxo_amount, u["txid"], u["vout"])
+            )
 
         max_utxos: int = 4
 
         viable_addrs = []
         for addr, data in unspents_by_addr.items():
-            if data['total'] >= amount_for:
+            if data["total"] >= amount_for:
                 # Sort from largest to smallest amount
-                sorted_utxos = sorted(data['utxos'], key=lambda x: x[0])
+                sorted_utxos = sorted(data["utxos"], key=lambda x: x[0])
 
                 # Max outputs required to reach amount_for
                 utxos_req: int = 0
@@ -256,13 +336,17 @@ class FIROInterface(BTCInterface):
                     viable_addrs.append(addr)
                     continue
 
-        ensure(len(viable_addrs) > 0, 'Could not find address with enough funds for proof')
+        ensure(
+            len(viable_addrs) > 0, "Could not find address with enough funds for proof"
+        )
 
         sign_for_addr: str = random.choice(viable_addrs)
-        self._log.debug('sign_for_addr %s', sign_for_addr)
+        self._log.debug("sign_for_addr %s", sign_for_addr)
 
         prove_utxos = []
-        sorted_utxos = sorted(unspents_by_addr[sign_for_addr]['utxos'], key=lambda x: x[0])
+        sorted_utxos = sorted(
+            unspents_by_addr[sign_for_addr]["utxos"], key=lambda x: x[0]
+        )
 
         hasher = hashlib.sha256()
 
@@ -272,18 +356,29 @@ class FIROInterface(BTCInterface):
             outpoint = (bytes.fromhex(utxo[1]), utxo[2])
             prove_utxos.append(outpoint)
             hasher.update(outpoint[0])
-            hasher.update(outpoint[1].to_bytes(2, 'big'))
+            hasher.update(outpoint[1].to_bytes(2, "big"))
             if sum_value >= amount_for:
                 break
         utxos_hash = hasher.digest()
 
-        if self.using_segwit():  # TODO: Use isSegwitAddress when scantxoutset can use combo
+        if (
+            self.using_segwit()
+        ):  # TODO: Use isSegwitAddress when scantxoutset can use combo
             # 'Address does not refer to key' for non p2pkh
             pkh = self.decodeAddress(sign_for_addr)
             sign_for_addr = self.pkh_to_address(pkh)
-            self._log.debug('sign_for_addr converted %s', sign_for_addr)
+            self._log.debug("sign_for_addr converted %s", sign_for_addr)
 
-        signature = self.rpc('signmessage', [sign_for_addr, sign_for_addr + '_swap_proof_' + utxos_hash.hex() + extra_commit_bytes.hex()])
+        signature = self.rpc(
+            "signmessage",
+            [
+                sign_for_addr,
+                sign_for_addr
+                + "_swap_proof_"
+                + utxos_hash.hex()
+                + extra_commit_bytes.hex(),
+            ],
+        )
 
         return (sign_for_addr, signature, prove_utxos)
 
@@ -292,19 +387,23 @@ class FIROInterface(BTCInterface):
         sum_value: int = 0
         for outpoint in utxos:
             hasher.update(outpoint[0])
-            hasher.update(outpoint[1].to_bytes(2, 'big'))
+            hasher.update(outpoint[1].to_bytes(2, "big"))
         utxos_hash = hasher.digest()
 
-        passed = self.verifyMessage(address, address + '_swap_proof_' + utxos_hash.hex() + extra_commit_bytes.hex(), signature)
-        ensure(passed is True, 'Proof of funds signature invalid')
+        passed = self.verifyMessage(
+            address,
+            address + "_swap_proof_" + utxos_hash.hex() + extra_commit_bytes.hex(),
+            signature,
+        )
+        ensure(passed is True, "Proof of funds signature invalid")
 
         if self.using_segwit():
             address = self.encodeSegwitAddress(decodeAddress(address)[1:])
 
         sum_value: int = 0
         for outpoint in utxos:
-            txout = self.rpc('gettxout', [outpoint[0].hex(), outpoint[1]])
-            sum_value += self.make_int(txout['value'])
+            txout = self.rpc("gettxout", [outpoint[0].hex(), outpoint[1]])
+            sum_value += self.make_int(txout["value"])
 
         return sum_value
 
@@ -314,15 +413,15 @@ class FIROInterface(BTCInterface):
         chain_blocks: int = self.getChainHeight()
 
         current_height: int = chain_blocks
-        block_hash = self.rpc('getblockhash', [current_height])
+        block_hash = self.rpc("getblockhash", [current_height])
 
         script_hash: bytes = self.decodeAddress(addr_find)
         find_scriptPubKey = self.getDestForScriptHash(script_hash)
 
         while current_height > height_start:
-            block_hash = self.rpc('getblockhash', [current_height])
+            block_hash = self.rpc("getblockhash", [current_height])
 
-            block = self.rpc('getblock', [block_hash, False])
+            block = self.rpc("getblock", [block_hash, False])
             decoded_block = CBlock()
             decoded_block = FromHex(decoded_block, block)
             for tx in decoded_block.vtx:
@@ -330,38 +429,46 @@ class FIROInterface(BTCInterface):
                     if txo.scriptPubKey == find_scriptPubKey:
                         tx.rehash()
                         txid = i2b(tx.sha256)
-                        self._log.info('Found output to addr: {} in tx {} in block {}'.format(addr_find, txid.hex(), block_hash))
-                        self._log.info('rescanblockchain hack invalidateblock {}'.format(block_hash))
-                        self.rpc('invalidateblock', [block_hash])
-                        self.rpc('reconsiderblock', [block_hash])
+                        self._log.info(
+                            "Found output to addr: {} in tx {} in block {}".format(
+                                addr_find, txid.hex(), block_hash
+                            )
+                        )
+                        self._log.info(
+                            "rescanblockchain hack invalidateblock {}".format(
+                                block_hash
+                            )
+                        )
+                        self.rpc("invalidateblock", [block_hash])
+                        self.rpc("reconsiderblock", [block_hash])
                         return
             current_height -= 1
 
     def getBlockWithTxns(self, block_hash: str):
         # TODO: Bypass decoderawtransaction and getblockheader
-        block = self.rpc('getblock', [block_hash, False])
-        block_header = self.rpc('getblockheader', [block_hash])
+        block = self.rpc("getblock", [block_hash, False])
+        block_header = self.rpc("getblockheader", [block_hash])
         decoded_block = CBlock()
         decoded_block = FromHex(decoded_block, block)
 
         tx_rv = []
         for tx in decoded_block.vtx:
             tx_hex = tx.serialize_with_witness().hex()
-            tx_dec = self.rpc('decoderawtransaction', [tx_hex])
-            if 'hex' not in tx_dec:
-                tx_dec['hex'] = tx_hex
+            tx_dec = self.rpc("decoderawtransaction", [tx_hex])
+            if "hex" not in tx_dec:
+                tx_dec["hex"] = tx_hex
 
             tx_rv.append(tx_dec)
 
         block_rv = {
-            'hash': block_hash,
-            'previousblockhash': block_header['previousblockhash'],
-            'tx': tx_rv,
-            'confirmations': block_header['confirmations'],
-            'height': block_header['height'],
-            'time': block_header['time'],
-            'version': block_header['version'],
-            'merkleroot': block_header['merkleroot'],
+            "hash": block_hash,
+            "previousblockhash": block_header["previousblockhash"],
+            "tx": tx_rv,
+            "confirmations": block_header["confirmations"],
+            "height": block_header["height"],
+            "time": block_header["time"],
+            "version": block_header["version"],
+            "merkleroot": block_header["merkleroot"],
         }
 
         return block_rv

basicswap/interface/ltc.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2023 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -17,75 +18,87 @@ class LTCInterface(BTCInterface):
 
     def __init__(self, coin_settings, network, swap_client=None):
         super(LTCInterface, self).__init__(coin_settings, network, swap_client)
-        self._rpc_wallet_mweb = 'mweb'
-        self.rpc_wallet_mweb = make_rpc_func(self._rpcport, self._rpcauth, host=self._rpc_host, wallet=self._rpc_wallet_mweb)
+        self._rpc_wallet_mweb = coin_settings.get("mweb_wallet_name", "mweb")
+        self.rpc_wallet_mweb = make_rpc_func(
+            self._rpcport,
+            self._rpcauth,
+            host=self._rpc_host,
+            wallet=self._rpc_wallet_mweb,
+        )
 
-    def getNewMwebAddress(self, use_segwit=False, label='swap_receive') -> str:
-        return self.rpc_wallet_mweb('getnewaddress', [label, 'mweb'])
+    def getNewMwebAddress(self, use_segwit=False, label="swap_receive") -> str:
+        return self.rpc_wallet_mweb("getnewaddress", [label, "mweb"])
 
-    def getNewStealthAddress(self, label=''):
+    def getNewStealthAddress(self, label=""):
         return self.getNewMwebAddress(False, label)
 
     def withdrawCoin(self, value, type_from: str, addr_to: str, subfee: bool) -> str:
-        params = [addr_to, value, '', '', subfee, True, self._conf_target]
-        if type_from == 'mweb':
-            return self.rpc_wallet_mweb('sendtoaddress', params)
-        return self.rpc_wallet('sendtoaddress', params)
+        params = [addr_to, value, "", "", subfee, True, self._conf_target]
+        if type_from == "mweb":
+            return self.rpc_wallet_mweb("sendtoaddress", params)
+        return self.rpc_wallet("sendtoaddress", params)
 
     def createUTXO(self, value_sats: int):
         # Create a new address and send value_sats to it
 
         spendable_balance = self.getSpendableBalance()
         if spendable_balance < value_sats:
-            raise ValueError('Balance too low')
+            raise ValueError("Balance too low")
 
-        address = self.getNewAddress(self._use_segwit, 'create_utxo')
-        return self.withdrawCoin(self.format_amount(value_sats), 'plain', address, False), address
+        address = self.getNewAddress(self._use_segwit, "create_utxo")
+        return (
+            self.withdrawCoin(self.format_amount(value_sats), "plain", address, False),
+            address,
+        )
 
     def getWalletInfo(self):
         rv = super(LTCInterface, self).getWalletInfo()
-
-        mweb_info = self.rpc_wallet_mweb('getwalletinfo')
-        rv['mweb_balance'] = mweb_info['balance']
-        rv['mweb_unconfirmed'] = mweb_info['unconfirmed_balance']
-        rv['mweb_immature'] = mweb_info['immature_balance']
+        mweb_info = self.rpc_wallet_mweb("getwalletinfo")
+        rv["mweb_balance"] = mweb_info["balance"]
+        rv["mweb_unconfirmed"] = mweb_info["unconfirmed_balance"]
+        rv["mweb_immature"] = mweb_info["immature_balance"]
         return rv
 
     def getUnspentsByAddr(self):
         unspent_addr = dict()
-        unspent = self.rpc_wallet('listunspent')
+        unspent = self.rpc_wallet("listunspent")
         for u in unspent:
-            if u.get('spendable', False) is False:
+            if u.get("spendable", False) is False:
                 continue
-            if u.get('solvable', False) is False:  # Filter out mweb outputs
+            if u.get("solvable", False) is False:  # Filter out mweb outputs
                 continue
-            if 'address' not in u:
+            if "address" not in u:
                 continue
-            if 'desc' in u:
-                desc = u['desc']
+            if "desc" in u:
+                desc = u["desc"]
                 if self.using_segwit:
                     if self.use_p2shp2wsh():
-                        if not desc.startswith('sh(wpkh'):
+                        if not desc.startswith("sh(wpkh"):
                             continue
                     else:
-                        if not desc.startswith('wpkh'):
+                        if not desc.startswith("wpkh"):
                             continue
                 else:
-                    if not desc.startswith('pkh'):
+                    if not desc.startswith("pkh"):
                         continue
-            unspent_addr[u['address']] = unspent_addr.get(u['address'], 0) + self.make_int(u['amount'], r=1)
+            unspent_addr[u["address"]] = unspent_addr.get(
+                u["address"], 0
+            ) + self.make_int(u["amount"], r=1)
         return unspent_addr
 
 
 class LTCInterfaceMWEB(LTCInterface):
-    @staticmethod
-    def coin_type():
+
+    def interface_type(self) -> int:
         return Coins.LTC_MWEB
 
     def __init__(self, coin_settings, network, swap_client=None):
         super(LTCInterfaceMWEB, self).__init__(coin_settings, network, swap_client)
-        self._rpc_wallet = 'mweb'
-        self.rpc_wallet = make_rpc_func(self._rpcport, self._rpcauth, host=self._rpc_host, wallet=self._rpc_wallet)
+        self._rpc_wallet = coin_settings.get("mweb_wallet_name", "mweb")
+        self.rpc_wallet = make_rpc_func(
+            self._rpcport, self._rpcauth, host=self._rpc_host, wallet=self._rpc_wallet
+        )
+        self.rpc_wallet_watch = self.rpc_wallet
 
     def chainparams(self):
         return chainparams[Coins.LTC]
@@ -95,56 +108,54 @@ class LTCInterfaceMWEB(LTCInterface):
 
     def coin_name(self) -> str:
         coin_chainparams = chainparams[Coins.LTC]
-        if coin_chainparams.get('use_ticker_as_name', False):
-            return coin_chainparams['ticker'] + ' MWEB'
-        return coin_chainparams['name'].capitalize() + ' MWEB'
+        return coin_chainparams["name"].capitalize() + " MWEB"
 
     def ticker(self) -> str:
-        ticker = chainparams[Coins.LTC]['ticker']
-        if self._network == 'testnet':
-            ticker = 't' + ticker
-        elif self._network == 'regtest':
-            ticker = 'rt' + ticker
-        return ticker + '_MWEB'
+        ticker = chainparams[Coins.LTC]["ticker"]
+        if self._network == "testnet":
+            ticker = "t" + ticker
+        elif self._network == "regtest":
+            ticker = "rt" + ticker
+        return ticker + "_MWEB"
 
-    def getNewAddress(self, use_segwit=False, label='swap_receive') -> str:
+    def getNewAddress(self, use_segwit=False, label="swap_receive") -> str:
         return self.getNewMwebAddress()
 
     def has_mweb_wallet(self) -> bool:
-        return 'mweb' in self.rpc('listwallets')
+        return "mweb" in self.rpc("listwallets")
 
     def init_wallet(self, password=None):
         # If system is encrypted mweb wallet will be created at first unlock
 
-        self._log.info('init_wallet - {}'.format(self.ticker()))
+        self._log.info("init_wallet - {}".format(self.ticker()))
 
-        self._log.info('Creating mweb wallet for {}.'.format(self.coin_name()))
+        self._log.info(f"Creating wallet {self._rpc_wallet} for {self.coin_name()}.")
         # wallet_name, disable_private_keys, blank, passphrase, avoid_reuse, descriptors, load_on_startup
-        self.rpc('createwallet', ['mweb', False, True, password, False, False, True])
+        self.rpc("createwallet", ["mweb", False, True, password, False, False, True])
 
         if password is not None:
             # Max timeout value, ~3 years
-            self.rpc_wallet('walletpassphrase', [password, 100000000])
+            self.rpc_wallet("walletpassphrase", [password, 100000000])
 
-        if self.getWalletSeedID() == 'Not found':
-            self._sc.initialiseWallet(self.coin_type())
+        if self.getWalletSeedID() == "Not found":
+            self._sc.initialiseWallet(self.interface_type())
 
             # Workaround to trigger mweb_spk_man->LoadMWEBKeychain()
-            self.rpc('unloadwallet', ['mweb'])
-            self.rpc('loadwallet', ['mweb'])
+            self.rpc("unloadwallet", ["mweb"])
+            self.rpc("loadwallet", ["mweb"])
             if password is not None:
-                self.rpc_wallet('walletpassphrase', [password, 100000000])
-            self.rpc_wallet('keypoolrefill')
+                self.rpc_wallet("walletpassphrase", [password, 100000000])
+            self.rpc_wallet("keypoolrefill")
 
-    def unlockWallet(self, password: str):
-        if password == '':
+    def unlockWallet(self, password: str, check_seed: bool = True) -> None:
+        if password == "":
             return
-        self._log.info('unlockWallet - {}'.format(self.ticker()))
+        self._log.info("unlockWallet - {}".format(self.ticker()))
 
         if not self.has_mweb_wallet():
             self.init_wallet(password)
         else:
             # Max timeout value, ~3 years
-            self.rpc_wallet('walletpassphrase', [password, 100000000])
-
+            self.rpc_wallet("walletpassphrase", [password, 100000000])
+        if check_seed:
             self._sc.checkWalletSeed(self.coin_type())

basicswap/interface/nmc.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2022 tecnovert
+# Copyright (c) 2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -13,27 +14,3 @@ class NMCInterface(BTCInterface):
     @staticmethod
     def coin_type():
         return Coins.NMC
-
-    def getLockTxHeight(self, txid, dest_address, bid_amount, rescan_from, find_index: bool = False, vout: int = -1):
-        self._log.debug('[rm] scantxoutset start')  # scantxoutset is slow
-        ro = self.rpc('scantxoutset', ['start', ['addr({})'.format(dest_address)]])  # TODO: Use combo(address) where possible
-        self._log.debug('[rm] scantxoutset end')
-        return_txid = True if txid is None else False
-        for o in ro['unspents']:
-            if txid and o['txid'] != txid.hex():
-                continue
-            # Verify amount
-            if self.make_int(o['amount']) != int(bid_amount):
-                self._log.warning('Found output to lock tx address of incorrect value: %s, %s', str(o['amount']), o['txid'])
-                continue
-
-            rv = {
-                'depth': 0,
-                'height': o['height']}
-            if o['height'] > 0:
-                rv['depth'] = ro['height'] - o['height']
-            if find_index:
-                rv['index'] = o['vout']
-            if return_txid:
-                rv['txid'] = o['txid']
-            return rv

basicswap/interface/passthrough_btc.py

@@ -6,8 +6,7 @@
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
 from .btc import BTCInterface
-from basicswap.contrib.test_framework.messages import (
-    CTxOut)
+from basicswap.contrib.test_framework.messages import CTxOut
 
 
 class PassthroughBTCInterface(BTCInterface):
@@ -15,5 +14,5 @@ class PassthroughBTCInterface(BTCInterface):
         super().__init__(coin_settings, network)
         self.txoType = CTxOut
         self._network = network
-        self.blocks_confirmed = coin_settings['blocks_confirmed']
-        self.setConfTarget(coin_settings['conf_target'])
+        self.blocks_confirmed = coin_settings["blocks_confirmed"]
+        self.setConfTarget(coin_settings["conf_target"])

basicswap/interface/pivx.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2022 tecnovert
+# Copyright (c) 2024 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -11,11 +12,7 @@ from .btc import BTCInterface
 from basicswap.rpc import make_rpc_func
 from basicswap.chainparams import Coins
 from basicswap.util.address import decodeAddress
-from .contrib.pivx_test_framework.messages import (
-    CBlock,
-    ToHex,
-    FromHex,
-    CTransaction)
+from .contrib.pivx_test_framework.messages import CBlock, ToHex, FromHex, CTransaction
 from basicswap.contrib.test_framework.script import (
     CScript,
     OP_DUP,
@@ -33,65 +30,106 @@ class PIVXInterface(BTCInterface):
     def __init__(self, coin_settings, network, swap_client=None):
         super(PIVXInterface, self).__init__(coin_settings, network, swap_client)
         # No multiwallet support
-        self.rpc_wallet = make_rpc_func(self._rpcport, self._rpcauth, host=self._rpc_host)
+        self.rpc_wallet = make_rpc_func(
+            self._rpcport, self._rpcauth, host=self._rpc_host
+        )
+        self.rpc_wallet_watch = self.rpc_wallet
 
-    def checkWallets(self) -> int:
-        return 1
+    def encryptWallet(self, password: str, check_seed: bool = True):
+        # Watchonly wallets are not encrypted
+
+        seed_id_before: str = self.getWalletSeedID()
+
+        self.rpc_wallet("encryptwallet", [password])
+
+        if check_seed is False or seed_id_before == "Not found":
+            return
+        seed_id_after: str = self.getWalletSeedID()
+
+        if seed_id_before == seed_id_after:
+            return
+        self._log.warning(f"{self.ticker()} wallet seed changed after encryption.")
+        self._log.debug(
+            f"seed_id_before: {seed_id_before} seed_id_after: {seed_id_after}."
+        )
+        self.setWalletSeedWarning(True)
+        # Workaround for https://github.com/bitcoin/bitcoin/issues/26607
+        chain_client_settings = self._sc.getChainClientSettings(
+            self.coin_type()
+        )  # basicswap.json
+
+        if chain_client_settings.get("manage_daemon", False) is False:
+            self._log.warning(
+                f"{self.ticker()} manage_daemon is false. Can't attempt to fix."
+            )
+            return
 
     def signTxWithWallet(self, tx):
-        rv = self.rpc('signrawtransaction', [tx.hex()])
-        return bytes.fromhex(rv['hex'])
+        rv = self.rpc("signrawtransaction", [tx.hex()])
+        return bytes.fromhex(rv["hex"])
 
-    def createRawFundedTransaction(self, addr_to: str, amount: int, sub_fee: bool = False, lock_unspents: bool = True) -> str:
-        txn = self.rpc('createrawtransaction', [[], {addr_to: self.format_amount(amount)}])
+    def createRawFundedTransaction(
+        self,
+        addr_to: str,
+        amount: int,
+        sub_fee: bool = False,
+        lock_unspents: bool = True,
+    ) -> str:
+        txn = self.rpc(
+            "createrawtransaction", [[], {addr_to: self.format_amount(amount)}]
+        )
         fee_rate, fee_src = self.get_fee_rate(self._conf_target)
-        self._log.debug(f'Fee rate: {fee_rate}, source: {fee_src}, block target: {self._conf_target}')
+        self._log.debug(
+            f"Fee rate: {fee_rate}, source: {fee_src}, block target: {self._conf_target}"
+        )
         options = {
-            'lockUnspents': lock_unspents,
-            'feeRate': fee_rate,
+            "lockUnspents": lock_unspents,
+            "feeRate": fee_rate,
         }
         if sub_fee:
-            options['subtractFeeFromOutputs'] = [0,]
-        return self.rpc('fundrawtransaction', [txn, options])['hex']
+            options["subtractFeeFromOutputs"] = [
+                0,
+            ]
+        return self.rpc("fundrawtransaction", [txn, options])["hex"]
 
     def createRawSignedTransaction(self, addr_to, amount) -> str:
         txn_funded = self.createRawFundedTransaction(addr_to, amount)
-        return self.rpc('signrawtransaction', [txn_funded])['hex']
+        return self.rpc("signrawtransaction", [txn_funded])["hex"]
 
     def decodeAddress(self, address):
         return decodeAddress(address)[1:]
 
     def getBlockWithTxns(self, block_hash):
         # TODO: Bypass decoderawtransaction and getblockheader
-        block = self.rpc('getblock', [block_hash, False])
-        block_header = self.rpc('getblockheader', [block_hash])
+        block = self.rpc("getblock", [block_hash, False])
+        block_header = self.rpc("getblockheader", [block_hash])
         decoded_block = CBlock()
         decoded_block = FromHex(decoded_block, block)
 
         tx_rv = []
         for tx in decoded_block.vtx:
-            tx_dec = self.rpc('decoderawtransaction', [ToHex(tx)])
+            tx_dec = self.rpc("decoderawtransaction", [ToHex(tx)])
             tx_rv.append(tx_dec)
 
         block_rv = {
-            'hash': block_hash,
-            'previousblockhash': block_header['previousblockhash'],
-            'tx': tx_rv,
-            'confirmations': block_header['confirmations'],
-            'height': block_header['height'],
-            'time': block_header['time'],
-            'version': block_header['version'],
-            'merkleroot': block_header['merkleroot'],
+            "hash": block_hash,
+            "previousblockhash": block_header["previousblockhash"],
+            "tx": tx_rv,
+            "confirmations": block_header["confirmations"],
+            "height": block_header["height"],
+            "time": block_header["time"],
+            "version": block_header["version"],
+            "merkleroot": block_header["merkleroot"],
         }
 
         return block_rv
 
     def withdrawCoin(self, value, addr_to, subfee):
-        params = [addr_to, value, '', '', subfee]
-        return self.rpc('sendtoaddress', params)
+        params = [addr_to, value, "", "", subfee]
+        return self.rpc("sendtoaddress", params)
 
     def getSpendableBalance(self) -> int:
-        return self.make_int(self.rpc('getwalletinfo')['balance'])
+        return self.make_int(self.rpc("getwalletinfo")["balance"])
 
     def loadTx(self, tx_bytes):
         # Load tx from bytes to internal representation
@@ -107,22 +145,35 @@ class PIVXInterface(BTCInterface):
         add_bytes = 107
         size = len(tx.serialize_with_witness()) + add_bytes
         pay_fee = round(fee_rate * size / 1000)
-        self._log.info(f'BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}.')
+        self._log.info(
+            f"BLockSpendTx fee_rate, size, fee: {fee_rate}, {size}, {pay_fee}."
+        )
         return pay_fee
 
     def signTxWithKey(self, tx: bytes, key: bytes) -> bytes:
         key_wif = self.encodeKey(key)
-        rv = self.rpc('signrawtransaction', [tx.hex(), [], [key_wif, ]])
-        return bytes.fromhex(rv['hex'])
+        rv = self.rpc(
+            "signrawtransaction",
+            [
+                tx.hex(),
+                [],
+                [
+                    key_wif,
+                ],
+            ],
+        )
+        return bytes.fromhex(rv["hex"])
 
     def findTxnByHash(self, txid_hex: str):
         # Only works for wallet txns
         try:
-            rv = self.rpc('gettransaction', [txid_hex])
-        except Exception as ex:
-            self._log.debug('findTxnByHash getrawtransaction failed: {}'.format(txid_hex))
+            rv = self.rpc("gettransaction", [txid_hex])
+        except Exception as e:  # noqa: F841
+            self._log.debug(
+                "findTxnByHash getrawtransaction failed: {}".format(txid_hex)
+            )
             return None
-        if 'confirmations' in rv and rv['confirmations'] >= self.blocks_confirmed:
-            block_height = self.getBlockHeader(rv['blockhash'])['height']
-            return {'txid': txid_hex, 'amount': 0, 'height': block_height}
+        if "confirmations" in rv and rv["confirmations"] >= self.blocks_confirmed:
+            block_height = self.getBlockHeader(rv["blockhash"])["height"]
+            return {"txid": txid_hex, "amount": 0, "height": block_height}
         return None

basicswap/interface/wow.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+# Copyright (c) 2024 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
@@ -28,4 +29,28 @@ class WOWInterface(XMRInterface):
 
     @staticmethod
     def depth_spendable() -> int:
-        return 3
+        return 4
+
+    # below only needed until wow is rebased to monero v0.18.4.0+
+    def openWallet(self, filename):
+        params = {"filename": filename}
+        if self._wallet_password is not None:
+            params["password"] = self._wallet_password
+
+        try:
+            self.rpc_wallet("open_wallet", params)
+        except Exception as e:
+            if "no connection to daemon" in str(e):
+                self._log.debug(f"{self.coin_name()} {e}")
+                return  # bypass refresh error to allow startup with a busy daemon
+
+            try:
+                # TODO Remove `store` after upstream fix to autosave on close_wallet
+                self.rpc_wallet("store")
+                self.rpc_wallet("close_wallet")
+                self._log.debug(f"Attempt to save and close {self.coin_name()} wallet")
+            except Exception as e:  # noqa: F841
+                pass
+
+            self.rpc_wallet("open_wallet", params)
+            self._log.debug(f"Reattempt to open {self.coin_name()} wallet")

basicswap/interface/xmr.py

@@ -2,14 +2,15 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-import json
 import logging
+import os
+import secrets
+import time
 
-import basicswap.contrib.ed25519_fast as edf
-import basicswap.ed25519_fast_util as edu
 import basicswap.util_xmr as xmr_util
 from coincurve.ed25519 import (
     ed25519_add,
@@ -27,20 +28,16 @@ from coincurve.dleag import (
 from basicswap.interface.base import (
     Curves,
 )
-from basicswap.util import (
-    i2b, b2i, b2h,
-    dumpj,
-    ensure,
-    TemporaryError)
-from basicswap.util.network import (
-    is_private_ip_address)
-from basicswap.rpc_xmr import (
-    make_xmr_rpc_func,
-    make_xmr_rpc2_func)
+from basicswap.util import i2b, b2i, b2h, dumpj, ensure, TemporaryError
+from basicswap.util.network import is_private_ip_address
+from basicswap.rpc_xmr import make_xmr_rpc_func, make_xmr_rpc2_func
 from basicswap.chainparams import XMR_COIN, Coins
 from basicswap.interface.base import CoinInterface
 
 
+ed25519_l = 2**252 + 27742317777372353535851937790883648493
+
+
 class XMRInterface(CoinInterface):
     @staticmethod
     def curve_type():
@@ -76,95 +73,209 @@ class XMRInterface(CoinInterface):
 
     @staticmethod
     def xmr_swap_a_lock_spend_tx_vsize() -> int:
-        raise ValueError('Not possible')
+        raise ValueError("Not possible")
+
+    @staticmethod
+    def est_lock_tx_vsize() -> int:
+        # TODO: Estimate with ringsize
+        return 1604
 
     @staticmethod
     def xmr_swap_b_lock_spend_tx_vsize() -> int:
         # TODO: Estimate with ringsize
         return 1604
 
+    def is_transient_error(self, ex) -> bool:
+        str_error: str = str(ex).lower()
+        if any(
+            response in str_error
+            for response in [
+                "failed to get earliest fork height",
+                "failed to get output distribution",
+                "request-sent",
+                "idle",
+            ]
+        ):
+            return True
+        return super().is_transient_error(ex)
+
     def __init__(self, coin_settings, network, swap_client=None):
         super().__init__(network)
 
-        self._addr_prefix = self.chainparams_network()['address_prefix']
+        self._addr_prefix = self.chainparams_network()["address_prefix"]
 
-        self.blocks_confirmed = coin_settings['blocks_confirmed']
-        self._restore_height = coin_settings.get('restore_height', 0)
-        self.setFeePriority(coin_settings.get('fee_priority', 0))
+        self.blocks_confirmed = coin_settings["blocks_confirmed"]
+        self._restore_height = coin_settings.get("restore_height", 0)
+        self.setFeePriority(coin_settings.get("fee_priority", 0))
         self._sc = swap_client
         self._log = self._sc.log if self._sc and self._sc.log else logging
         self._wallet_password = None
         self._have_checked_seed = False
+        self._wallet_filename = coin_settings.get("wallet_name", "swap_wallet")
 
         daemon_login = None
-        if coin_settings.get('rpcuser', '') != '':
-            daemon_login = (coin_settings.get('rpcuser', ''), coin_settings.get('rpcpassword', ''))
+        if coin_settings.get("rpcuser", "") != "":
+            daemon_login = (
+                coin_settings.get("rpcuser", ""),
+                coin_settings.get("rpcpassword", ""),
+            )
 
-        rpchost = coin_settings.get('rpchost', '127.0.0.1')
+        rpchost = coin_settings.get("rpchost", "127.0.0.1")
         proxy_host = None
         proxy_port = None
         # Connect to the daemon over a proxy if not running locally
         if swap_client:
             chain_client_settings = swap_client.getChainClientSettings(self.coin_type())
-            manage_daemon: bool = chain_client_settings['manage_daemon']
+            manage_daemon: bool = chain_client_settings["manage_daemon"]
             if swap_client.use_tor_proxy:
                 if manage_daemon is False:
-                    log_str: str = ''
-                    have_cc_tor_opt = 'use_tor' in chain_client_settings
-                    if have_cc_tor_opt and chain_client_settings['use_tor'] is False:
-                        log_str = ' bypassing proxy (use_tor false for XMR)'
+                    log_str: str = ""
+                    have_cc_tor_opt = "use_tor" in chain_client_settings
+                    if have_cc_tor_opt and chain_client_settings["use_tor"] is False:
+                        log_str = (
+                            f" bypassing proxy (use_tor false for {self.coin_name()})"
+                        )
                     elif have_cc_tor_opt is False and is_private_ip_address(rpchost):
-                        log_str = ' bypassing proxy (private ip address)'
+                        log_str = " bypassing proxy (private ip address)"
                     else:
                         proxy_host = swap_client.tor_proxy_host
                         proxy_port = swap_client.tor_proxy_port
-                        log_str = f' through proxy at {proxy_host}'
-                    self._log.info(f'Connecting to remote {self.coin_name()} daemon at {rpchost}{log_str}.')
+                        log_str = f" through proxy at {proxy_host}"
+                    self._log.info(
+                        f"Connecting to remote {self.coin_name()} daemon at {rpchost}{log_str}."
+                    )
                 else:
-                    self._log.info(f'Not connecting to local {self.coin_name()} daemon through proxy.')
+                    self._log.info(
+                        f"Not connecting to local {self.coin_name()} daemon through proxy."
+                    )
             elif manage_daemon is False:
-                self._log.info(f'Connecting to remote {self.coin_name()} daemon at {rpchost}.')
+                self._log.info(
+                    f"Connecting to remote {self.coin_name()} daemon at {rpchost}."
+                )
 
-        self._rpctimeout = coin_settings.get('rpctimeout', 60)
-        self._walletrpctimeout = coin_settings.get('walletrpctimeout', 120)
-        self._walletrpctimeoutlong = coin_settings.get('walletrpctimeoutlong', 600)
+        self._rpctimeout = coin_settings.get("rpctimeout", 60)
+        self._walletrpctimeout = coin_settings.get("walletrpctimeout", 120)
+        # walletrpctimeoutlong likely unneeded
+        self._walletrpctimeoutlong = coin_settings.get("walletrpctimeoutlong", 600)
+        self._num_chaininfo_retries = coin_settings.get("numchaininforetries", 20)
+        self._chaininfo_retry_delay = coin_settings.get("chaininforetrydelay", 1)
 
-        self.rpc = make_xmr_rpc_func(coin_settings['rpcport'], daemon_login, host=rpchost, proxy_host=proxy_host, proxy_port=proxy_port, default_timeout=self._rpctimeout, tag='Node(j) ')
-        self.rpc2 = make_xmr_rpc2_func(coin_settings['rpcport'], daemon_login, host=rpchost, proxy_host=proxy_host, proxy_port=proxy_port, default_timeout=self._rpctimeout, tag='Node ')  # non-json endpoint
-        self.rpc_wallet = make_xmr_rpc_func(coin_settings['walletrpcport'], coin_settings['walletrpcauth'], host=coin_settings.get('walletrpchost', '127.0.0.1'), default_timeout=self._walletrpctimeout, tag='Wallet ')
+        self.rpc = make_xmr_rpc_func(
+            coin_settings["rpcport"],
+            daemon_login,
+            host=rpchost,
+            proxy_host=proxy_host,
+            proxy_port=proxy_port,
+            default_timeout=self._rpctimeout,
+            tag="Node(j) ",
+        )
+        self.rpc2 = make_xmr_rpc2_func(
+            coin_settings["rpcport"],
+            daemon_login,
+            host=rpchost,
+            proxy_host=proxy_host,
+            proxy_port=proxy_port,
+            default_timeout=self._rpctimeout,
+            tag="Node ",
+        )  # non-json endpoint
+        self.rpc_wallet = make_xmr_rpc_func(
+            coin_settings["walletrpcport"],
+            coin_settings["walletrpcauth"],
+            host=coin_settings.get("walletrpchost", "127.0.0.1"),
+            default_timeout=self._walletrpctimeout,
+            tag="Wallet ",
+        )
 
     def setFeePriority(self, new_priority):
-        ensure(new_priority >= 0 and new_priority < 4, 'Invalid fee_priority value')
+        ensure(new_priority >= 0 and new_priority < 4, "Invalid fee_priority value")
         self._fee_priority = new_priority
 
-    def setWalletFilename(self, wallet_filename):
-        self._wallet_filename = wallet_filename
-
     def createWallet(self, params):
         if self._wallet_password is not None:
-            params['password'] = self._wallet_password
-        rv = self.rpc_wallet('generate_from_keys', params)
-        self._log.info('generate_from_keys %s', dumpj(rv))
+            params["password"] = self._wallet_password
+        rv = self.rpc_wallet("generate_from_keys", params)
+        if "address" in rv:
+            new_address: str = rv["address"]
+            is_watch_only: bool = "Watch-only" in rv.get("info", "")
+            self._log.info(
+                "Generated{} {} wallet: {}".format(
+                    " watch-only" if is_watch_only else "",
+                    self.coin_name(),
+                    self._log.addr(new_address),
+                )
+            )
+        else:
+            self._log.debug("generate_from_keys %s", dumpj(rv))
+            raise ValueError("generate_from_keys failed")
 
     def openWallet(self, filename):
-        params = {'filename': filename}
+        params = {"filename": filename}
         if self._wallet_password is not None:
-            params['password'] = self._wallet_password
+            params["password"] = self._wallet_password
 
         try:
-            # Can't reopen the same wallet in windows, !is_keys_file_locked()
-            self.rpc_wallet('close_wallet')
-        except Exception:
+            self.rpc_wallet("open_wallet", params)
+        except Exception as e:
+            if "no connection to daemon" in str(e):
+                self._log.debug(f"{self.coin_name()} {e}")
+                return  # Bypass refresh error to allow startup with a busy daemon
+            if any(
+                x in str(e)
+                for x in (
+                    "invalid signature",
+                    "std::bad_alloc",
+                    "basic_string::_M_replace_aux",
+                )
+            ):
+                self._log.error(f"{self.coin_name()} wallet is corrupt.")
+                chain_client_settings = self._sc.getChainClientSettings(
+                    self.coin_type()
+                )  # basicswap.json
+                if chain_client_settings.get("manage_wallet_daemon", False):
+                    self._log.info(f"Renaming {self.coin_name()} wallet cache file.")
+                    walletpath = os.path.join(
+                        chain_client_settings.get("datadir", "none"),
+                        "wallets",
+                        filename,
+                    )
+                    if not os.path.isfile(walletpath):
+                        self._log.warning(
+                            f"Could not find {self.coin_name()} wallet cache file."
+                        )
+                        raise
+                    bkp_path = walletpath + ".corrupt"
+                    for i in range(100):
+                        if not os.path.exists(bkp_path):
+                            break
+                        bkp_path = walletpath + f".corrupt{i}"
+                    if os.path.exists(bkp_path):
+                        self._log.error(
+                            f"Could not find backup path for {self.coin_name()} wallet."
+                        )
+                        raise
+                    os.rename(walletpath, bkp_path)
+                    # Drop through to open_wallet
+                else:
+                    raise
+            else:
+                try:
+                    self.rpc_wallet("close_wallet")
+                    self._log.debug(f"Closing {self.coin_name()} wallet")
+                except Exception as e:  # noqa: F841
                     pass
-        self.rpc_wallet('open_wallet', params)
 
-    def initialiseWallet(self, key_view: bytes, key_spend: bytes, restore_height=None) -> None:
+            self.rpc_wallet("open_wallet", params)
+            self._log.debug(f"Attempting to open {self.coin_name()} wallet")
+
+    def initialiseWallet(
+        self, key_view: bytes, key_spend: bytes, restore_height=None
+    ) -> None:
         with self._mx_wallet:
             try:
                 self.openWallet(self._wallet_filename)
                 # TODO: Check address
                 return  # Wallet exists
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 pass
 
             Kbv = self.getPubkey(key_view)
@@ -172,11 +283,11 @@ class XMRInterface(CoinInterface):
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
             params = {
-                'filename': self._wallet_filename,
-                'address': address_b58,
-                'viewkey': b2h(key_view[::-1]),
-                'spendkey': b2h(key_spend[::-1]),
-                'restore_height': self._restore_height,
+                "filename": self._wallet_filename,
+                "address": address_b58,
+                "viewkey": b2h(key_view[::-1]),
+                "spendkey": b2h(key_spend[::-1]),
+                "restore_height": self._restore_height,
             }
             self.createWallet(params)
             self.openWallet(self._wallet_filename)
@@ -186,91 +297,112 @@ class XMRInterface(CoinInterface):
             self.openWallet(self._wallet_filename)
 
     def testDaemonRPC(self, with_wallet=True) -> None:
-        self.rpc_wallet('get_languages')
+        self.rpc_wallet("get_languages")
 
     def getDaemonVersion(self):
-        return self.rpc_wallet('get_version')['version']
+        # Returns wallet version
+        if self._core_version is None:
+            self._core_version = self.rpc_wallet("get_version")["version"]
+        return self._core_version
 
     def getBlockchainInfo(self):
-        get_height = self.rpc2('get_height', timeout=self._rpctimeout)
+        get_height = self.getChainHeight(full_output=True)
         rv = {
-            'blocks': get_height['height'],
-            'verificationprogress': 0.0,
+            "blocks": get_height["height"],
+            "verificationprogress": 0.0,
         }
 
         try:
             # get_block_count.block_count is how many blocks are in the longest chain known to the node.
             # get_block_count returns "Internal error" if bootstrap-daemon is active
-            if get_height['untrusted'] is True:
-                rv['bootstrapping'] = True
-                get_info = self.rpc2('get_info', timeout=self._rpctimeout)
-                if 'height_without_bootstrap' in get_info:
-                    rv['blocks'] = get_info['height_without_bootstrap']
+            if get_height["untrusted"] is True:
+                rv["bootstrapping"] = True
+                get_info = self.rpc2("get_info", timeout=self._rpctimeout)
+                if "height_without_bootstrap" in get_info:
+                    rv["blocks"] = get_info["height_without_bootstrap"]
 
-                rv['known_block_count'] = get_info['height']
-                if rv['known_block_count'] > rv['blocks']:
-                    rv['verificationprogress'] = rv['blocks'] / rv['known_block_count']
+                rv["known_block_count"] = get_info["height"]
+                if rv["known_block_count"] > rv["blocks"]:
+                    rv["verificationprogress"] = rv["blocks"] / rv["known_block_count"]
             else:
-                rv['known_block_count'] = self.rpc('get_block_count', timeout=self._rpctimeout)['count']
-                rv['verificationprogress'] = rv['blocks'] / rv['known_block_count']
+                rv["known_block_count"] = self.rpc(
+                    "get_block_count", timeout=self._rpctimeout
+                )["count"]
+                rv["verificationprogress"] = rv["blocks"] / rv["known_block_count"]
         except Exception as e:
-            self._log.warning(f'{self.ticker_str()} get_block_count failed with: {e}')
-            rv['verificationprogress'] = 0.0
+            self._log.warning(f"{self.ticker_str()} get_block_count failed with: {e}")
+            rv["verificationprogress"] = 0.0
 
         return rv
 
-    def getChainHeight(self):
-        return self.rpc2('get_height', timeout=self._rpctimeout)['height']
+    def getChainHeight(self, full_output: bool = False):
+        for i in range(self._num_chaininfo_retries):
+            try:
+                get_height = self.rpc2("get_height", timeout=self._rpctimeout)
+                return get_height if full_output else get_height["height"]
+            except Exception as e:
+                if i < self._num_chaininfo_retries - 1 and self.is_transient_error(e):
+                    time.sleep(self._chaininfo_retry_delay)
+                    continue
+                raise (e)
 
     def getWalletInfo(self):
         with self._mx_wallet:
             try:
                 self.openWallet(self._wallet_filename)
             except Exception as e:
-                if 'Failed to open wallet' in str(e):
-                    rv = {'encrypted': True, 'locked': True, 'balance': 0, 'unconfirmed_balance': 0}
+                if "Failed to open wallet" in str(e):
+                    rv = {
+                        "encrypted": True,
+                        "locked": True,
+                        "balance": 0,
+                        "unconfirmed_balance": 0,
+                    }
                     return rv
                 raise e
 
             rv = {}
-            self.rpc_wallet('refresh')
-            balance_info = self.rpc_wallet('get_balance')
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
+            balance_info = self.rpc_wallet("get_balance")
 
-            rv['balance'] = self.format_amount(balance_info['unlocked_balance'])
-            rv['unconfirmed_balance'] = self.format_amount(balance_info['balance'] - balance_info['unlocked_balance'])
-            rv['encrypted'] = False if self._wallet_password is None else True
-            rv['locked'] = False
+            rv["wallet_blocks"] = self.rpc_wallet("get_height")["height"]
+            rv["balance"] = self.format_amount(balance_info["unlocked_balance"])
+            rv["unconfirmed_balance"] = self.format_amount(
+                balance_info["balance"] - balance_info["unlocked_balance"]
+            )
+            rv["encrypted"] = False if self._wallet_password is None else True
+            rv["locked"] = False
             return rv
 
     def getMainWalletAddress(self) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            return self.rpc_wallet('get_address')['address']
+            return self.rpc_wallet("get_address")["address"]
 
     def getNewAddress(self, placeholder) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            new_address = self.rpc_wallet('create_address', {'account_index': 0})['address']
-            self.rpc_wallet('store')
+            new_address = self.rpc_wallet("create_address", {"account_index": 0})[
+                "address"
+            ]
+            self.rpc_wallet("store")
             return new_address
 
     def get_fee_rate(self, conf_target: int = 2):
         # fees - array of unsigned int; Represents the base fees at different priorities [slow, normal, fast, fastest].
-        fee_est = self.rpc('get_fee_estimate')
+        fee_est = self.rpc("get_fee_estimate")
         if conf_target <= 1:
             conf_target = 1  # normal
         else:
             conf_target = 0  # slow
-        fee_per_k_bytes = fee_est['fees'][conf_target] * 1000
+        fee_per_k_bytes = fee_est["fees"][conf_target] * 1000
 
-        return float(self.format_amount(fee_per_k_bytes)), 'get_fee_estimate'
+        return float(self.format_amount(fee_per_k_bytes)), "get_fee_estimate"
 
-    def getNewSecretKey(self) -> bytes:
+    def getNewRandomKey(self) -> bytes:
         # Note: Returned bytes are in big endian order
-        return i2b(edu.get_secret())
-
-    def pubkey(self, key: bytes) -> bytes:
-        return edf.scalarmult_B(key)
+        return i2b(9 + secrets.randbelow(ed25519_l - 9))
 
     def encodeKey(self, vk: bytes) -> str:
         return vk[::-1].hex()
@@ -278,12 +410,6 @@ class XMRInterface(CoinInterface):
     def decodeKey(self, k_hex: str) -> bytes:
         return bytes.fromhex(k_hex)[::-1]
 
-    def encodePubkey(self, pk: bytes) -> str:
-        return edu.encodepoint(pk)
-
-    def decodePubkey(self, pke):
-        return edf.decodepoint(pke)
-
     def getPubkey(self, privkey):
         return ed25519_get_pubkey(privkey)
 
@@ -294,7 +420,7 @@ class XMRInterface(CoinInterface):
 
     def verifyKey(self, k: int) -> bool:
         i = b2i(k)
-        return (i < edf.l and i > 8)
+        return i < ed25519_l and i > 8
 
     def verifyPubkey(self, pubkey_bytes):
         # Calls ed25519_decode_check_point() in secp256k1
@@ -320,45 +446,71 @@ class XMRInterface(CoinInterface):
     def encodeSharedAddress(self, Kbv: bytes, Kbs: bytes) -> str:
         return xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-    def publishBLockTx(self, kbv: bytes, Kbs: bytes, output_amount: int, feerate: int, unlock_time: int = 0) -> bytes:
+    def publishBLockTx(
+        self,
+        kbv: bytes,
+        Kbs: bytes,
+        output_amount: int,
+        feerate: int,
+        unlock_time: int = 0,
+    ) -> bytes:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh')
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
             Kbv = self.getPubkey(kbv)
             shared_addr = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-            params = {'destinations': [{'amount': output_amount, 'address': shared_addr}], 'unlock_time': unlock_time}
+            params = {
+                "destinations": [{"amount": output_amount, "address": shared_addr}],
+                "unlock_time": unlock_time,
+            }
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
-            rv = self.rpc_wallet('transfer', params)
-            self._log.info('publishBLockTx %s to address_b58 %s', rv['tx_hash'], shared_addr)
-            tx_hash = bytes.fromhex(rv['tx_hash'])
+                params["priority"] = self._fee_priority
+            rv = self.rpc_wallet("transfer", params)
+            self._log.info(
+                "publishBLockTx {} to address_b58 {}".format(
+                    self._log.id(rv["tx_hash"]),
+                    self._log.addr(shared_addr),
+                )
+            )
+            tx_hash = bytes.fromhex(rv["tx_hash"])
 
             return tx_hash
 
-    def findTxB(self, kbv, Kbs, cb_swap_value, cb_block_confirmed, restore_height, bid_sender):
+    def findTxB(
+        self,
+        kbv,
+        Kbs,
+        cb_swap_value: int,
+        cb_block_confirmed: int,
+        restore_height: int,
+        bid_sender: bool,
+        check_amount: bool = True,
+    ):
         with self._mx_wallet:
             Kbv = self.getPubkey(kbv)
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
             kbv_le = kbv[::-1]
             params = {
-                'restore_height': restore_height,
-                'filename': address_b58,
-                'address': address_b58,
-                'viewkey': b2h(kbv_le),
+                "restore_height": restore_height,
+                "filename": address_b58,
+                "address": address_b58,
+                "viewkey": b2h(kbv_le),
             }
 
             try:
                 self.openWallet(address_b58)
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 self.createWallet(params)
                 self.openWallet(address_b58)
 
-            self.rpc_wallet('refresh', timeout=self._walletrpctimeoutlong)
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
-            '''
+            """
             # Debug
             try:
                 current_height = self.rpc_wallet('get_height')['height']
@@ -367,136 +519,223 @@ class XMRInterface(CoinInterface):
                 self._log.info('rpc failed %s', str(e))
                 current_height = None  # If the transfer is available it will be deep enough
                 #   and (current_height is None or current_height - transfer['block_height'] > cb_block_confirmed):
-            '''
-            params = {'transfer_type': 'available'}
-            transfers = self.rpc_wallet('incoming_transfers', params)
+            """
+            params = {"transfer_type": "available"}
+            transfers = self.rpc_wallet("incoming_transfers", params)
             rv = None
-            if 'transfers' in transfers:
-                for transfer in transfers['transfers']:
+            if "transfers" in transfers:
+                for transfer in transfers["transfers"]:
                     # unlocked <- wallet->is_transfer_unlocked() checks unlock_time and CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE
-                    if not transfer['unlocked']:
-                        full_tx = self.rpc_wallet('get_transfer_by_txid', {'txid': transfer['tx_hash']})
-                        unlock_time = full_tx['transfer']['unlock_time']
+                    if not transfer["unlocked"]:
+                        full_tx = self.rpc_wallet(
+                            "get_transfer_by_txid", {"txid": transfer["tx_hash"]}
+                        )
+                        unlock_time = full_tx["transfer"]["unlock_time"]
                         if unlock_time != 0:
-                            self._log.warning('Coin b lock txn is locked: {}, unlock_time {}'.format(transfer['tx_hash'], unlock_time))
+                            self._log.warning(
+                                "Coin b lock txn is locked: {}, unlock_time {}".format(
+                                    transfer["tx_hash"], unlock_time
+                                )
+                            )
                             rv = -1
                             continue
-                    if transfer['amount'] == cb_swap_value:
-                        return {'txid': transfer['tx_hash'], 'amount': transfer['amount'], 'height': 0 if 'block_height' not in transfer else transfer['block_height']}
+                    if transfer["amount"] == cb_swap_value or check_amount is False:
+                        return {
+                            "txid": transfer["tx_hash"],
+                            "amount": transfer["amount"],
+                            "height": (
+                                0
+                                if "block_height" not in transfer
+                                else transfer["block_height"]
+                            ),
+                        }
                     else:
-                        self._log.warning('Incorrect amount detected for coin b lock txn: {}'.format(transfer['tx_hash']))
+                        self._log.warning(
+                            "Incorrect amount detected for coin b lock txn: {}".format(
+                                transfer["tx_hash"]
+                            )
+                        )
                         rv = -1
             return rv
 
-    def findTxnByHash(self, txid):
+    def findTxnByHash(self, txid: str):
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh', timeout=self._walletrpctimeoutlong)
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
             try:
-                current_height = self.rpc2('get_height', timeout=self._rpctimeout)['height']
-                self._log.info(f'findTxnByHash {self.ticker_str()} current_height {current_height}\nhash: {txid}')
+                current_height: int = self.getChainHeight()
+                self._log.info(
+                    f"findTxnByHash {self.ticker_str()} current_height {current_height}\nhash: {txid}"
+                )
             except Exception as e:
-                self._log.info('rpc failed %s', str(e))
-                current_height = None  # If the transfer is available it will be deep enough
+                self._log.info("rpc failed %s", str(e))
+                current_height = (
+                    None  # If the transfer is available it will be deep enough
+                )
 
-            params = {'transfer_type': 'available'}
-            rv = self.rpc_wallet('incoming_transfers', params)
-            if 'transfers' in rv:
-                for transfer in rv['transfers']:
-                    if transfer['tx_hash'] == txid \
-                       and (current_height is None or current_height - transfer['block_height'] > self.blocks_confirmed):
-                        return {'txid': transfer['tx_hash'], 'amount': transfer['amount'], 'height': transfer['block_height']}
+            params = {"transfer_type": "available"}
+            rv = self.rpc_wallet("incoming_transfers", params)
+            if "transfers" in rv:
+                for transfer in rv["transfers"]:
+                    if transfer["tx_hash"] == txid and (
+                        current_height is None
+                        or current_height - transfer["block_height"]
+                        > self.blocks_confirmed
+                    ):
+                        return {
+                            "txid": transfer["tx_hash"],
+                            "amount": transfer["amount"],
+                            "height": transfer["block_height"],
+                        }
 
             return None
 
-    def spendBLockTx(self, chain_b_lock_txid: bytes, address_to: str, kbv: bytes, kbs: bytes, cb_swap_value: int, b_fee_rate: int, restore_height: int, spend_actual_balance: bool = False, lock_tx_vout=None) -> bytes:
-        '''
+    def spendBLockTx(
+        self,
+        chain_b_lock_txid: bytes,
+        address_to: str,
+        kbv: bytes,
+        kbs: bytes,
+        cb_swap_value: int,
+        b_fee_rate: int,
+        restore_height: int,
+        spend_actual_balance: bool = False,
+        lock_tx_vout=None,
+    ) -> bytes:
+        """
         Notes:
         "Error: No unlocked balance in the specified subaddress(es)" can mean not enough funds after tx fee.
-        '''
+        """
         with self._mx_wallet:
             Kbv = self.getPubkey(kbv)
             Kbs = self.getPubkey(kbs)
             address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
 
-            wallet_filename = address_b58 + '_spend'
+            wallet_filename = address_b58 + "_spend"
 
             params = {
-                'filename': wallet_filename,
-                'address': address_b58,
-                'viewkey': b2h(kbv[::-1]),
-                'spendkey': b2h(kbs[::-1]),
-                'restore_height': restore_height,
+                "filename": wallet_filename,
+                "address": address_b58,
+                "viewkey": b2h(kbv[::-1]),
+                "spendkey": b2h(kbs[::-1]),
+                "restore_height": restore_height,
             }
 
             try:
                 self.openWallet(wallet_filename)
-            except Exception as e:
+            except Exception as e:  # noqa: F841
                 self.createWallet(params)
                 self.openWallet(wallet_filename)
 
-            self.rpc_wallet('refresh')
-            rv = self.rpc_wallet('get_balance')
-            if rv['balance'] < cb_swap_value:
-                self._log.warning('Balance is too low, checking for existing spend.')
-                txns = self.rpc_wallet('get_transfers', {'out': True})
-                if 'out' in txns:
-                    txns = txns['out']
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
+            rv = self.rpc_wallet("get_balance")
+            if rv["balance"] < cb_swap_value:
+                self._log.warning("Balance is too low, checking for existing spend.")
+                txns = self.rpc_wallet("get_transfers", {"out": True})
+                if "out" in txns:
+                    txns = txns["out"]
                     if len(txns) > 0:
-                        txid = txns[0]['txid']
-                        self._log.warning(f'spendBLockTx detected spending tx: {txid}.')
-                        if txns[0]['address'] == address_b58:
+                        txid = txns[0]["txid"]
+                        self._log.warning(f"spendBLockTx detected spending tx: {txid}.")
+
+                        # Should check for address_to, but only the from address is found in the output
+                        if txns[0]["address"] == address_b58:
                             return bytes.fromhex(txid)
 
-                self._log.error('wallet {} balance {}, expected {}'.format(wallet_filename, rv['balance'], cb_swap_value))
+                self._log.error(
+                    "wallet {} balance {}, expected {}".format(
+                        wallet_filename, rv["balance"], cb_swap_value
+                    )
+                )
 
                 if not spend_actual_balance:
-                    raise TemporaryError('Invalid balance')
+                    raise TemporaryError("Invalid balance")
 
-            if spend_actual_balance and rv['balance'] != cb_swap_value:
-                self._log.warning('Spending actual balance {}, not swap value {}.'.format(rv['balance'], cb_swap_value))
-                cb_swap_value = rv['balance']
-            if rv['unlocked_balance'] < cb_swap_value:
-                self._log.error('wallet {} balance {}, expected {}, blocks_to_unlock {}'.format(wallet_filename, rv['unlocked_balance'], cb_swap_value, rv['blocks_to_unlock']))
-                raise TemporaryError('Invalid unlocked_balance')
+            if spend_actual_balance and rv["balance"] != cb_swap_value:
+                self._log.warning(
+                    "Spending actual balance {}, not swap value {}.".format(
+                        rv["balance"], cb_swap_value
+                    )
+                )
+                cb_swap_value = rv["balance"]
+            if rv["unlocked_balance"] < cb_swap_value:
+                self._log.error(
+                    "wallet {} balance {}, expected {}, blocks_to_unlock {}".format(
+                        wallet_filename,
+                        rv["unlocked_balance"],
+                        cb_swap_value,
+                        rv["blocks_to_unlock"],
+                    )
+                )
+                raise TemporaryError("Invalid unlocked_balance")
 
-            params = {'address': address_to}
+            params = {"address": address_to}
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
+                params["priority"] = self._fee_priority
 
-            rv = self.rpc_wallet('sweep_all', params)
-            self._log.debug('sweep_all {}'.format(json.dumps(rv)))
+            rv = self.rpc_wallet("sweep_all", params)
 
-            return bytes.fromhex(rv['tx_hash_list'][0])
+            return bytes.fromhex(rv["tx_hash_list"][0])
 
-    def withdrawCoin(self, value, addr_to: str, sweepall: bool, estimate_fee: bool = False) -> str:
+    def withdrawCoin(
+        self, value, addr_to: str, sweepall: bool, estimate_fee: bool = False
+    ) -> str:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('refresh')
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
             if sweepall:
-                balance = self.rpc_wallet('get_balance')
-                if balance['balance'] != balance['unlocked_balance']:
-                    raise ValueError('Balance must be fully confirmed to use sweep all.')
-                self._log.info('{} {} sweep_all.'.format(self.ticker_str(), 'estimate fee' if estimate_fee else 'withdraw'))
-                self._log.debug('{} balance: {}'.format(self.ticker_str(), balance['balance']))
-                params = {'address': addr_to, 'do_not_relay': estimate_fee, 'subaddr_indices_all': True}
+                balance = self.rpc_wallet("get_balance")
+                if balance["balance"] != balance["unlocked_balance"]:
+                    raise ValueError(
+                        "Balance must be fully confirmed to use sweep all."
+                    )
+                self._log.info(
+                    "{} {} sweep_all.".format(
+                        self.ticker_str(),
+                        "estimate fee" if estimate_fee else "withdraw",
+                    )
+                )
+                self._log.debug(
+                    "{} balance: {}".format(self.ticker_str(), balance["balance"])
+                )
+                params = {
+                    "address": addr_to,
+                    "do_not_relay": estimate_fee,
+                    "subaddr_indices_all": True,
+                }
                 if self._fee_priority > 0:
-                    params['priority'] = self._fee_priority
-                rv = self.rpc_wallet('sweep_all', params)
+                    params["priority"] = self._fee_priority
+                rv = self.rpc_wallet("sweep_all", params)
                 if estimate_fee:
-                    return {'num_txns': len(rv['fee_list']), 'sum_amount': sum(rv['amount_list']), 'sum_fee': sum(rv['fee_list']), 'sum_weight': sum(rv['weight_list'])}
-                return rv['tx_hash_list'][0]
+                    return {
+                        "num_txns": len(rv["fee_list"]),
+                        "sum_amount": sum(rv["amount_list"]),
+                        "sum_fee": sum(rv["fee_list"]),
+                        "sum_weight": sum(rv["weight_list"]),
+                    }
+                return rv["tx_hash_list"][0]
 
             value_sats: int = self.make_int(value)
-            params = {'destinations': [{'amount': value_sats, 'address': addr_to}], 'do_not_relay': estimate_fee}
+            params = {
+                "destinations": [{"amount": value_sats, "address": addr_to}],
+                "do_not_relay": estimate_fee,
+            }
             if self._fee_priority > 0:
-                params['priority'] = self._fee_priority
-            rv = self.rpc_wallet('transfer', params)
+                params["priority"] = self._fee_priority
+            rv = self.rpc_wallet("transfer", params)
             if estimate_fee:
-                return {'num_txns': 1, 'sum_amount': rv['amount'], 'sum_fee': rv['fee'], 'sum_weight': rv['weight']}
-            return rv['tx_hash']
+                return {
+                    "num_txns": 1,
+                    "sum_amount": rv["amount"],
+                    "sum_fee": rv["fee"],
+                    "sum_weight": rv["weight"],
+                }
+            return rv["tx_hash"]
 
     def estimateFee(self, value: int, addr_to: str, sweepall: bool) -> str:
         return self.withdrawCoin(value, addr_to, sweepall, estimate_fee=True)
@@ -506,7 +745,7 @@ class XMRInterface(CoinInterface):
             try:
                 Kbv = self.getPubkey(kbv)
                 address_b58 = xmr_util.encode_address(Kbv, Kbs, self._addr_prefix)
-                wallet_file = address_b58 + '_spend'
+                wallet_file = address_b58 + "_spend"
                 try:
                     self.openWallet(wallet_file)
                 except Exception:
@@ -514,54 +753,66 @@ class XMRInterface(CoinInterface):
                     try:
                         self.openWallet(wallet_file)
                     except Exception:
-                        self._log.info(f'showLockTransfers trying to create wallet for address {address_b58}.')
+                        self._log.info(
+                            f"showLockTransfers trying to create wallet for address {address_b58}."
+                        )
                         kbv_le = kbv[::-1]
                         params = {
-                            'restore_height': restore_height,
-                            'filename': address_b58,
-                            'address': address_b58,
-                            'viewkey': b2h(kbv_le),
+                            "restore_height": restore_height,
+                            "filename": address_b58,
+                            "address": address_b58,
+                            "viewkey": b2h(kbv_le),
                         }
                         self.createWallet(params)
                         self.openWallet(address_b58)
 
-                self.rpc_wallet('refresh')
+                self.rpc_wallet("refresh")
+                self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
-                rv = self.rpc_wallet('get_transfers', {'in': True, 'out': True, 'pending': True, 'failed': True})
-                rv['filename'] = wallet_file
+                rv = self.rpc_wallet(
+                    "get_transfers",
+                    {"in": True, "out": True, "pending": True, "failed": True},
+                )
+                rv["filename"] = wallet_file
                 return rv
             except Exception as e:
-                return {'error': str(e)}
+                return {"error": str(e)}
 
     def getSpendableBalance(self) -> int:
         with self._mx_wallet:
             self.openWallet(self._wallet_filename)
+            self.rpc_wallet("refresh")
+            self._log.debug(f"Refreshing {self.coin_name()} wallet")
 
-            self.rpc_wallet('refresh')
-            balance_info = self.rpc_wallet('get_balance')
-            return balance_info['unlocked_balance']
+            balance_info = self.rpc_wallet("get_balance")
+            return balance_info["unlocked_balance"]
 
-    def changeWalletPassword(self, old_password, new_password):
-        self._log.info('changeWalletPassword - {}'.format(self.ticker()))
+    def changeWalletPassword(
+        self, old_password, new_password, check_seed_if_encrypt: bool = True
+    ):
+        self._log.info("changeWalletPassword - {}".format(self.ticker()))
         orig_password = self._wallet_password
-        if old_password != '':
+        if old_password != "":
             self._wallet_password = old_password
         try:
             self.openWallet(self._wallet_filename)
-            self.rpc_wallet('change_wallet_password', {'old_password': old_password, 'new_password': new_password})
+            self.rpc_wallet(
+                "change_wallet_password",
+                {"old_password": old_password, "new_password": new_password},
+            )
         except Exception as e:
             self._wallet_password = orig_password
             raise e
 
-    def unlockWallet(self, password: str) -> None:
-        self._log.info('unlockWallet - {}'.format(self.ticker()))
+    def unlockWallet(self, password: str, check_seed: bool = True) -> None:
+        self._log.info("unlockWallet - {}".format(self.ticker()))
         self._wallet_password = password
 
-        if not self._have_checked_seed:
+        if check_seed and not self._have_checked_seed:
             self._sc.checkWalletSeed(self.coin_type())
 
     def lockWallet(self) -> None:
-        self._log.info('lockWallet - {}'.format(self.ticker()))
+        self._log.info("lockWallet - {}".format(self.ticker()))
         self._wallet_password = None
 
     def isAddressMine(self, address):
@@ -570,7 +821,14 @@ class XMRInterface(CoinInterface):
 
     def ensureFunds(self, amount: int) -> None:
         if self.getSpendableBalance() < amount:
-            raise ValueError('Balance too low')
+            raise ValueError("Balance too low")
 
     def getTransaction(self, txid: bytes):
-        return self.rpc2('get_transactions', {'txs_hashes': [txid.hex(), ]})
+        return self.rpc2(
+            "get_transactions",
+            {
+                "txs_hashes": [
+                    txid.hex(),
+                ]
+            },
+        )

basicswap/messages_npb.py

@@ -2,11 +2,12 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2024 tecnovert
+# Copyright (c) 2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
 
-'''
+"""
 syntax = "proto3";
 
 0 VARINT int32, int64, uint32, uint64, sint32, sint64, bool, enum
@@ -18,12 +19,19 @@ Don't encode fields of default values.
 When decoding initialise all fields not set from data.
 
 protobuf ParseFromString would reset the whole object, from_bytes won't.
-'''
+"""
 
 from basicswap.util.integer import encode_varint, decode_varint
 
 
-class NonProtobufClass():
+NPBW_INT = 0
+NPBW_BYTES = 2
+
+NPBF_STR = 1
+NPBF_BOOL = 2
+
+
+class NonProtobufClass:
     def __init__(self, init_all: bool = True, **kwargs):
         for key, value in kwargs.items():
             found_field: bool = False
@@ -34,7 +42,7 @@ class NonProtobufClass():
                     found_field = True
                     break
             if found_field is False:
-                raise ValueError(f'got an unexpected keyword argument \'{key}\'')
+                raise ValueError(f"Got an unexpected keyword argument '{key}'")
 
         if init_all:
             self.init_fields()
@@ -53,7 +61,7 @@ class NonProtobufClass():
                 else:
                     setattr(self, field_name, bytes())
             else:
-                raise ValueError(f'Unknown wire_type {wire_type}')
+                raise ValueError(f"Unknown wire_type {wire_type}")
 
     def to_bytes(self) -> bytes:
         rv = bytes()
@@ -74,11 +82,11 @@ class NonProtobufClass():
                     continue
                 rv += encode_varint(tag)
                 if isinstance(field_value, str):
-                    field_value = field_value.encode('utf-8')
+                    field_value = field_value.encode("utf-8")
                 rv += encode_varint(len(field_value))
                 rv += field_value
             else:
-                raise ValueError(f'Unknown wire_type {wire_type}')
+                raise ValueError(f"Unknown wire_type {wire_type}")
         return rv
 
     def from_bytes(self, b: bytes, init_all: bool = True) -> None:
@@ -92,7 +100,9 @@ class NonProtobufClass():
 
             field_name, wire_type_expect, field_type = self._map[field_num]
             if wire_type != wire_type_expect:
-                raise ValueError(f'Unexpected wire_type {wire_type} for field {field_num}')
+                raise ValueError(
+                    f"Unexpected wire_type {wire_type} for field {field_num}"
+                )
 
             if wire_type == 0:
                 field_value, lv = decode_varint(b, o)
@@ -100,12 +110,12 @@ class NonProtobufClass():
             elif wire_type == 2:
                 field_len, lv = decode_varint(b, o)
                 o += lv
-                field_value = b[o: o + field_len]
+                field_value = b[o : o + field_len]
                 o += field_len
                 if field_type == 1:
-                    field_value = field_value.decode('utf-8')
+                    field_value = field_value.decode("utf-8")
             else:
-                raise ValueError(f'Unknown wire_type {wire_type}')
+                raise ValueError(f"Unknown wire_type {wire_type}")
 
             setattr(self, field_name, field_value)
 
@@ -115,151 +125,182 @@ class NonProtobufClass():
 
 class OfferMessage(NonProtobufClass):
     _map = {
-        1: ('protocol_version', 0, 0),
-        2: ('coin_from', 0, 0),
-        3: ('coin_to', 0, 0),
-        4: ('amount_from', 0, 0),
-        5: ('amount_to', 0, 0),
-        6: ('min_bid_amount', 0, 0),
-        7: ('time_valid', 0, 0),
-        8: ('lock_type', 0, 0),
-        9: ('lock_value', 0, 0),
-        10: ('swap_type', 0, 0),
-        11: ('proof_address', 2, 1),
-        12: ('proof_signature', 2, 1),
-        13: ('pkhash_seller', 2, 0),
-        14: ('secret_hash', 2, 0),
-        15: ('fee_rate_from', 0, 0),
-        16: ('fee_rate_to', 0, 0),
-        17: ('amount_negotiable', 0, 2),
-        18: ('rate_negotiable', 0, 2),
-        19: ('proof_utxos', 2, 0),
+        1: ("protocol_version", NPBW_INT, 0),
+        2: ("coin_from", NPBW_INT, 0),
+        3: ("coin_to", NPBW_INT, 0),
+        4: ("amount_from", NPBW_INT, 0),
+        5: ("amount_to", NPBW_INT, 0),
+        6: ("min_bid_amount", NPBW_INT, 0),
+        7: ("time_valid", NPBW_INT, 0),
+        8: ("lock_type", NPBW_INT, 0),
+        9: ("lock_value", NPBW_INT, 0),
+        10: ("swap_type", NPBW_INT, 0),
+        11: ("proof_address", NPBW_BYTES, NPBF_STR),
+        12: ("proof_signature", NPBW_BYTES, NPBF_STR),
+        13: ("pkhash_seller", NPBW_BYTES, 0),
+        14: ("secret_hash", NPBW_BYTES, 0),
+        15: ("fee_rate_from", NPBW_INT, 0),
+        16: ("fee_rate_to", NPBW_INT, 0),
+        17: ("amount_negotiable", NPBW_INT, NPBF_BOOL),
+        18: ("rate_negotiable", NPBW_INT, NPBF_BOOL),
+        19: ("proof_utxos", NPBW_BYTES, 0),
+        20: ("auto_accept_type", NPBW_INT, 0),
+        21: ("message_nets", NPBW_BYTES, NPBF_STR),
     }
 
 
 class BidMessage(NonProtobufClass):
     _map = {
-        1: ('protocol_version', 0, 0),
-        2: ('offer_msg_id', 2, 0),
-        3: ('time_valid', 0, 0),
-        4: ('amount', 0, 0),
-        5: ('amount_to', 0, 0),
-        6: ('pkhash_buyer', 2, 0),
-        7: ('proof_address', 2, 1),
-        8: ('proof_signature', 2, 1),
-        9: ('proof_utxos', 2, 0),
-        10: ('pkhash_buyer_to', 2, 0),
+        1: ("protocol_version", NPBW_INT, 0),
+        2: ("offer_msg_id", NPBW_BYTES, 0),
+        3: ("time_valid", NPBW_INT, 0),
+        4: ("amount", NPBW_INT, 0),
+        5: ("amount_to", NPBW_INT, 0),
+        6: ("pkhash_buyer", NPBW_BYTES, 0),
+        7: ("proof_address", NPBW_BYTES, NPBF_STR),
+        8: ("proof_signature", NPBW_BYTES, NPBF_STR),
+        9: ("proof_utxos", NPBW_BYTES, 0),
+        10: ("pkhash_buyer_to", NPBW_BYTES, 0),
+        11: ("message_nets", NPBW_BYTES, NPBF_STR),
     }
 
 
 class BidAcceptMessage(NonProtobufClass):
     # Step 3, seller -> buyer
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('initiate_txid', 2, 0),
-        3: ('contract_script', 2, 0),
-        4: ('pkhash_seller', 2, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("initiate_txid", NPBW_BYTES, 0),
+        3: ("contract_script", NPBW_BYTES, 0),
+        4: ("pkhash_seller", NPBW_BYTES, 0),
     }
 
 
 class OfferRevokeMessage(NonProtobufClass):
     _map = {
-        1: ('offer_msg_id', 2, 0),
-        2: ('signature', 2, 0),
+        1: ("offer_msg_id", NPBW_BYTES, 0),
+        2: ("signature", NPBW_BYTES, 0),
     }
 
 
 class BidRejectMessage(NonProtobufClass):
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('reject_code', 0, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("reject_code", NPBW_INT, 0),
     }
 
 
 class XmrBidMessage(NonProtobufClass):
     # MSG1L, F -> L
     _map = {
-        1: ('protocol_version', 0, 0),
-        2: ('offer_msg_id', 2, 0),
-        3: ('time_valid', 0, 0),
-        4: ('amount', 0, 0),
-        5: ('amount_to', 0, 0),
-        6: ('pkaf', 2, 0),
-        7: ('kbvf', 2, 0),
-        8: ('kbsf_dleag', 2, 0),
-        9: ('dest_af', 2, 0),
+        1: ("protocol_version", NPBW_INT, 0),
+        2: ("offer_msg_id", NPBW_BYTES, 0),
+        3: ("time_valid", NPBW_INT, 0),
+        4: ("amount", NPBW_INT, 0),
+        5: ("amount_to", NPBW_INT, 0),
+        6: ("pkaf", NPBW_BYTES, 0),
+        7: ("kbvf", NPBW_BYTES, 0),
+        8: ("kbsf_dleag", NPBW_BYTES, 0),
+        9: ("dest_af", NPBW_BYTES, 0),
+        10: ("message_nets", NPBW_BYTES, NPBF_STR),
     }
 
 
 class XmrSplitMessage(NonProtobufClass):
     _map = {
-        1: ('msg_id', 2, 0),
-        2: ('msg_type', 0, 0),
-        3: ('sequence', 0, 0),
-        4: ('dleag', 2, 0),
+        1: ("msg_id", NPBW_BYTES, 0),
+        2: ("msg_type", NPBW_INT, 0),
+        3: ("sequence", NPBW_INT, 0),
+        4: ("dleag", NPBW_BYTES, 0),
     }
 
 
 class XmrBidAcceptMessage(NonProtobufClass):
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('pkal', 2, 0),
-        3: ('kbvl', 2, 0),
-        4: ('kbsl_dleag', 2, 0),
-
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("pkal", NPBW_BYTES, 0),
+        3: ("kbvl", NPBW_BYTES, 0),
+        4: ("kbsl_dleag", NPBW_BYTES, 0),
         # MSG2F
-        5: ('a_lock_tx', 2, 0),
-        6: ('a_lock_tx_script', 2, 0),
-        7: ('a_lock_refund_tx', 2, 0),
-        8: ('a_lock_refund_tx_script', 2, 0),
-        9: ('a_lock_refund_spend_tx', 2, 0),
-        10: ('al_lock_refund_tx_sig', 2, 0),
+        5: ("a_lock_tx", NPBW_BYTES, 0),
+        6: ("a_lock_tx_script", NPBW_BYTES, 0),
+        7: ("a_lock_refund_tx", NPBW_BYTES, 0),
+        8: ("a_lock_refund_tx_script", NPBW_BYTES, 0),
+        9: ("a_lock_refund_spend_tx", NPBW_BYTES, 0),
+        10: ("al_lock_refund_tx_sig", NPBW_BYTES, 0),
     }
 
 
 class XmrBidLockTxSigsMessage(NonProtobufClass):
     # MSG3L
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('af_lock_refund_spend_tx_esig', 2, 0),
-        3: ('af_lock_refund_tx_sig', 2, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("af_lock_refund_spend_tx_esig", NPBW_BYTES, 0),
+        3: ("af_lock_refund_tx_sig", NPBW_BYTES, 0),
     }
 
 
 class XmrBidLockSpendTxMessage(NonProtobufClass):
     # MSG4F
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('a_lock_spend_tx', 2, 0),
-        3: ('kal_sig', 2, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("a_lock_spend_tx", NPBW_BYTES, 0),
+        3: ("kal_sig", NPBW_BYTES, 0),
     }
 
 
 class XmrBidLockReleaseMessage(NonProtobufClass):
     # MSG5F
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('al_lock_spend_tx_esig', 2, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("al_lock_spend_tx_esig", NPBW_BYTES, 0),
     }
 
 
 class ADSBidIntentMessage(NonProtobufClass):
     # L -> F Sent from bidder, construct a reverse bid
     _map = {
-        1: ('protocol_version', 0, 0),
-        2: ('offer_msg_id', 2, 0),
-        3: ('time_valid', 0, 0),
-        4: ('amount_from', 0, 0),
-        5: ('amount_to', 0, 0),
+        1: ("protocol_version", NPBW_INT, 0),
+        2: ("offer_msg_id", NPBW_BYTES, 0),
+        3: ("time_valid", NPBW_INT, 0),
+        4: ("amount_from", NPBW_INT, 0),
+        5: ("amount_to", NPBW_INT, 0),
+        6: ("message_nets", NPBW_BYTES, NPBF_STR),
     }
 
 
 class ADSBidIntentAcceptMessage(NonProtobufClass):
     # F -> L Sent from offerer, construct a reverse bid
     _map = {
-        1: ('bid_msg_id', 2, 0),
-        2: ('pkaf', 2, 0),
-        3: ('kbvf', 2, 0),
-        4: ('kbsf_dleag', 2, 0),
-        5: ('dest_af', 2, 0),
+        1: ("bid_msg_id", NPBW_BYTES, 0),
+        2: ("pkaf", NPBW_BYTES, 0),
+        3: ("kbvf", NPBW_BYTES, 0),
+        4: ("kbsf_dleag", NPBW_BYTES, 0),
+        5: ("dest_af", NPBW_BYTES, 0),
+    }
+
+
+class ConnectReqMessage(NonProtobufClass):
+    _map = {
+        1: ("network_type", NPBW_INT, 0),
+        2: ("network_data", NPBW_BYTES, 0),
+        3: ("request_type", NPBW_INT, 0),
+        4: ("request_data", NPBW_BYTES, 0),
+    }
+
+
+class MessagePortalOffer(NonProtobufClass):
+    _map = {
+        1: ("network_type_from", NPBW_INT, 0),
+        2: ("network_type_to", NPBW_INT, 0),
+        3: ("portal_address_from", NPBW_BYTES, 0),
+        4: ("portal_address_to", NPBW_BYTES, 0),
+        5: ("time_valid", NPBW_INT, 0),
+        6: ("smsg_difficulty", NPBW_INT, 0),
+    }
+
+
+class MessagePortalSend(NonProtobufClass):
+    _map = {
+        1: ("forward_address", NPBW_BYTES, 0),  # pubkey, 33 bytes
+        2: ("message_bytes", NPBW_BYTES, 0),
     }

basicswap/network/network.py

@@ -5,10 +5,10 @@
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-'''
-    Message 2 bytes msg_class, 4 bytes length, [ 2 bytes msg_type, payload ]
+"""
+Message 2 bytes msg_class, 4 bytes length, [ 2 bytes msg_type, payload ]
 
-    Handshake procedure:
+Handshake procedure:
     node0 connecting to node1
     node0 send_handshake
     node1 process_handshake
@@ -16,8 +16,8 @@
     node0 recv_ping
         Both nodes are initialised
 
-    XChaCha20_Poly1305 mac is 16bytes
-'''
+XChaCha20_Poly1305 mac is 16bytes
+"""
 
 import time
 import queue
@@ -36,11 +36,12 @@ from Crypto.Cipher import ChaCha20_Poly1305  # TODO: Add to libsecp256k1/coincur
 from coincurve.keys import PrivateKey, PublicKey
 from basicswap.contrib.rfc6979 import (
     rfc6979_hmac_sha256_initialize,
-    rfc6979_hmac_sha256_generate)
+    rfc6979_hmac_sha256_generate,
+)
 
 
-START_TOKEN = 0xabcd
-MSG_START_TOKEN = START_TOKEN.to_bytes(2, 'big')
+START_TOKEN = 0xABCD
+MSG_START_TOKEN = START_TOKEN.to_bytes(2, "big")
 
 MSG_MAX_SIZE = 0x200000  # 2MB
 
@@ -63,49 +64,71 @@ class NetMessageTypes(IntEnum):
         return value in cls._value2member_map_
 
 
-'''
+"""
 class NetMessage:
     def __init__(self):
         self._msg_class = None  # 2 bytes
         self._len = None # 4 bytes
         self._msg_type = None  # 2 bytes
-'''
+"""
 
 
 # Ensure handshake keys are not reused by including the time in the msg, mac and key hash
 # Verify timestamp is not too old
 # Add keys to db to catch concurrent attempts, records can be cleared periodically, the timestamp should catch older replay attempts
 class MsgHandshake:
-    __slots__ = ('_timestamp', '_ephem_pk', '_ct', '_mac')
+    __slots__ = ("_timestamp", "_ephem_pk", "_ct", "_mac")
 
     def __init__(self):
         pass
 
     def encode_aad(self):  # Additional Authenticated Data
-        return int(NetMessageTypes.HANDSHAKE).to_bytes(2, 'big') + \
-            self._timestamp.to_bytes(8, 'big') + \
-            self._ephem_pk
+        return (
+            int(NetMessageTypes.HANDSHAKE).to_bytes(2, "big")
+            + self._timestamp.to_bytes(8, "big")
+            + self._ephem_pk
+        )
 
     def encode(self):
         return self.encode_aad() + self._ct + self._mac
 
     def decode(self, msg_mv):
         o = 2
-        self._timestamp = int.from_bytes(msg_mv[o: o + 8], 'big')
+        self._timestamp = int.from_bytes(msg_mv[o : o + 8], "big")
         o += 8
-        self._ephem_pk = bytes(msg_mv[o: o + 33])
+        self._ephem_pk = bytes(msg_mv[o : o + 33])
         o += 33
-        self._ct = bytes(msg_mv[o: -16])
+        self._ct = bytes(msg_mv[o:-16])
         self._mac = bytes(msg_mv[-16:])
 
 
 class Peer:
     __slots__ = (
-        '_mx', '_pubkey', '_address', '_socket', '_version', '_ready', '_incoming',
-        '_connected_at', '_last_received_at', '_bytes_sent', '_bytes_received',
-        '_receiving_length', '_receiving_buffer', '_recv_messages', '_misbehaving_score',
-        '_ke', '_km', '_dir', '_sent_nonce', '_recv_nonce', '_last_handshake_at',
-        '_ping_nonce', '_last_ping_at', '_last_ping_rtt')
+        "_mx",
+        "_pubkey",
+        "_address",
+        "_socket",
+        "_version",
+        "_ready",
+        "_incoming",
+        "_connected_at",
+        "_last_received_at",
+        "_bytes_sent",
+        "_bytes_received",
+        "_receiving_length",
+        "_receiving_buffer",
+        "_recv_messages",
+        "_misbehaving_score",
+        "_ke",
+        "_km",
+        "_dir",
+        "_sent_nonce",
+        "_recv_nonce",
+        "_last_handshake_at",
+        "_ping_nonce",
+        "_last_ping_at",
+        "_last_ping_rtt",
+    )
 
     def __init__(self, address, socket, pubkey):
         self._mx = threading.Lock()
@@ -141,14 +164,16 @@ def listen_thread(cls):
     max_bytes = 0x10000
     while cls._running:
         # logging.info('[rm] network loop %d', cls._running)
-        readable, writable, errored = select.select(cls._read_sockets, cls._write_sockets, cls._error_sockets, timeout)
+        readable, writable, errored = select.select(
+            cls._read_sockets, cls._write_sockets, cls._error_sockets, timeout
+        )
         cls._mx.acquire()
         try:
             disconnected_peers = []
             for s in readable:
                 if s == cls._socket:
                     peer_socket, address = cls._socket.accept()
-                    logging.info('Connection from %s', address)
+                    logging.info("Connection from %s", address)
                     new_peer = Peer(address, peer_socket, None)
                     new_peer._incoming = True
                     cls._peers.append(new_peer)
@@ -160,12 +185,12 @@ def listen_thread(cls):
                             try:
                                 bytes_recv = s.recv(max_bytes, socket.MSG_DONTWAIT)
                             except socket.error as se:
-                                if se.args[0] not in (socket.EWOULDBLOCK, ):
-                                    logging.error('Receive error %s', str(se))
+                                if se.args[0] not in (socket.EWOULDBLOCK,):
+                                    logging.error("Receive error %s", str(se))
                                     disconnected_peers.append(peer)
                                     continue
                             except Exception as e:
-                                logging.error('Receive error %s', str(e))
+                                logging.error("Receive error %s", str(e))
                                 disconnected_peers.append(peer)
                                 continue
 
@@ -175,7 +200,7 @@ def listen_thread(cls):
                             cls.receive_bytes(peer, bytes_recv)
 
             for s in errored:
-                logging.warning('Socket error')
+                logging.warning("Socket error")
 
             for peer in disconnected_peers:
                 cls.disconnect(peer)
@@ -193,7 +218,9 @@ def msg_thread(cls):
                 try:
                     now_us = time.time_ns() // 1000
                     if peer._ready is True:
-                        if now_us - peer._last_ping_at >= 5000000:  # 5 seconds  TODO: Make variable
+                        if (
+                            now_us - peer._last_ping_at >= 5000000
+                        ):  # 5 seconds  TODO: Make variable
                             cls.send_ping(peer)
                     msg = peer._recv_messages.get(False)
                     cls.process_message(peer, msg)
@@ -201,7 +228,7 @@ def msg_thread(cls):
                 except queue.Empty:
                     pass
                 except Exception as e:
-                    logging.warning('process message error %s', str(e))
+                    logging.warning("process message error %s", str(e))
                     if cls._sc.debug:
                         logging.error(traceback.format_exc())
 
@@ -211,9 +238,24 @@ def msg_thread(cls):
 
 class Network:
     __slots__ = (
-        '_p2p_host', '_p2p_port', '_network_key', '_network_pubkey',
-        '_sc', '_peers', '_max_connections', '_running', '_network_thread', '_msg_thread',
-        '_mx', '_socket', '_read_sockets', '_write_sockets', '_error_sockets', '_csprng', '_seen_ephem_keys')
+        "_p2p_host",
+        "_p2p_port",
+        "_network_key",
+        "_network_pubkey",
+        "_sc",
+        "_peers",
+        "_max_connections",
+        "_running",
+        "_network_thread",
+        "_msg_thread",
+        "_mx",
+        "_socket",
+        "_read_sockets",
+        "_write_sockets",
+        "_error_sockets",
+        "_csprng",
+        "_seen_ephem_keys",
+    )
 
     def __init__(self, p2p_host, p2p_port, network_key, swap_client):
         self._p2p_host = p2p_host
@@ -278,7 +320,13 @@ class Network:
             self._mx.release()
 
     def add_connection(self, host, port, peer_pubkey):
-        self._sc.log.info('Connecting from %s to %s at %s %d', self._network_pubkey.hex(), peer_pubkey.hex(), host, port)
+        self._sc.log.info(
+            "Connecting from %s to %s at %s %d",
+            self._network_pubkey.hex(),
+            peer_pubkey.hex(),
+            host,
+            port,
+        )
         self._mx.acquire()
         try:
             address = (host, port)
@@ -294,7 +342,7 @@ class Network:
         self.send_handshake(peer)
 
     def disconnect(self, peer):
-        self._sc.log.info('Closing peer socket %s', peer._address)
+        self._sc.log.info("Closing peer socket %s", peer._address)
         self._read_sockets.pop(self._read_sockets.index(peer._socket))
         self._error_sockets.pop(self._error_sockets.index(peer._socket))
         peer.close()
@@ -305,7 +353,11 @@ class Network:
 
         used = self._seen_ephem_keys.get(ephem_pk)
         if used:
-            raise ValueError('Handshake ephem_pk reused %s peer %s', 'for' if direction == 1 else 'by', used[0])
+            raise ValueError(
+                "Handshake ephem_pk reused %s peer %s",
+                "for" if direction == 1 else "by",
+                used[0],
+            )
 
         self._seen_ephem_keys[ephem_pk] = (peer._address, timestamp)
 
@@ -313,12 +365,14 @@ class Network:
             self._seen_ephem_keys.popitem(last=False)
 
     def send_handshake(self, peer):
-        self._sc.log.debug('send_handshake %s', peer._address)
+        self._sc.log.debug("send_handshake %s", peer._address)
         peer._mx.acquire()
         try:
             # TODO: Drain peer._recv_messages
             if not peer._recv_messages.empty():
-                self._sc.log.warning('send_handshake %s - Receive queue dumped.', peer._address)
+                self._sc.log.warning(
+                    "send_handshake %s - Receive queue dumped.", peer._address
+                )
                 while not peer._recv_messages.empty():
                     peer._recv_messages.get(False)
 
@@ -332,7 +386,7 @@ class Network:
 
             ss = k.ecdh(peer._pubkey)
 
-            hashed = hashlib.sha512(ss + msg._timestamp.to_bytes(8, 'big')).digest()
+            hashed = hashlib.sha512(ss + msg._timestamp.to_bytes(8, "big")).digest()
             peer._ke = hashed[:32]
             peer._km = hashed[32:]
 
@@ -361,11 +415,13 @@ class Network:
             peer._mx.release()
 
     def process_handshake(self, peer, msg_mv):
-        self._sc.log.debug('process_handshake %s', peer._address)
+        self._sc.log.debug("process_handshake %s", peer._address)
 
         # TODO: Drain peer._recv_messages
         if not peer._recv_messages.empty():
-            self._sc.log.warning('process_handshake %s - Receive queue dumped.', peer._address)
+            self._sc.log.warning(
+                "process_handshake %s - Receive queue dumped.", peer._address
+            )
             while not peer._recv_messages.empty():
                 peer._recv_messages.get(False)
 
@@ -375,17 +431,19 @@ class Network:
         try:
             now = int(time.time())
             if now - peer._last_handshake_at < 30:
-                raise ValueError('Too many handshakes from peer %s', peer._address)
+                raise ValueError("Too many handshakes from peer %s", peer._address)
 
             if abs(msg._timestamp - now) > TIMESTAMP_LEEWAY:
-                raise ValueError('Bad handshake timestamp from peer %s', peer._address)
+                raise ValueError("Bad handshake timestamp from peer %s", peer._address)
 
-            self.check_handshake_ephem_key(peer, msg._timestamp, msg._ephem_pk, direction=2)
+            self.check_handshake_ephem_key(
+                peer, msg._timestamp, msg._ephem_pk, direction=2
+            )
 
             nk = PrivateKey(self._network_key)
             ss = nk.ecdh(msg._ephem_pk)
 
-            hashed = hashlib.sha512(ss + msg._timestamp.to_bytes(8, 'big')).digest()
+            hashed = hashlib.sha512(ss + msg._timestamp.to_bytes(8, "big")).digest()
             peer._ke = hashed[:32]
             peer._km = hashed[32:]
 
@@ -395,7 +453,9 @@ class Network:
             aad += nonce
             cipher = ChaCha20_Poly1305.new(key=peer._ke, nonce=nonce)
             cipher.update(aad)
-            plaintext = cipher.decrypt_and_verify(msg._ct, msg._mac)  # Will raise error if mac doesn't match
+            plaintext = cipher.decrypt_and_verify(
+                msg._ct, msg._mac
+            )  # Will raise error if mac doesn't match
 
             peer._version = plaintext[:6]
             sig = plaintext[6:]
@@ -414,26 +474,30 @@ class Network:
 
         except Exception as e:
             # TODO: misbehaving
-            self._sc.log.debug('[rm] process_handshake %s', str(e))
+            self._sc.log.debug("[rm] process_handshake %s", str(e))
 
     def process_ping(self, peer, msg_mv):
         nonce = peer._recv_nonce[:24]
 
         cipher = ChaCha20_Poly1305.new(key=peer._ke, nonce=nonce)
-        cipher.update(msg_mv[0: 2])
+        cipher.update(msg_mv[0:2])
         cipher.update(nonce)
 
         mac = msg_mv[-16:]
-        plaintext = cipher.decrypt_and_verify(msg_mv[2: -16], mac)
+        plaintext = cipher.decrypt_and_verify(msg_mv[2:-16], mac)
 
-        ping_nonce = int.from_bytes(plaintext[:4], 'big')
+        ping_nonce = int.from_bytes(plaintext[:4], "big")
         # Version is added to a ping following a handshake message
         if len(plaintext) >= 10:
             peer._ready = True
-            version = plaintext[4: 10]
+            version = plaintext[4:10]
             if peer._version is None:
                 peer._version = version
-                self._sc.log.debug('Set version from ping %s, %s', peer._pubkey.hex(), peer._version.hex())
+                self._sc.log.debug(
+                    "Set version from ping %s, %s",
+                    peer._pubkey.hex(),
+                    peer._version.hex(),
+                )
 
         peer._recv_nonce = hashlib.sha256(nonce + mac).digest()
 
@@ -443,32 +507,32 @@ class Network:
         nonce = peer._recv_nonce[:24]
 
         cipher = ChaCha20_Poly1305.new(key=peer._ke, nonce=nonce)
-        cipher.update(msg_mv[0: 2])
+        cipher.update(msg_mv[0:2])
         cipher.update(nonce)
 
         mac = msg_mv[-16:]
-        plaintext = cipher.decrypt_and_verify(msg_mv[2: -16], mac)
+        plaintext = cipher.decrypt_and_verify(msg_mv[2:-16], mac)
 
-        pong_nonce = int.from_bytes(plaintext[:4], 'big')
+        pong_nonce = int.from_bytes(plaintext[:4], "big")
 
         if pong_nonce == peer._ping_nonce:
             peer._last_ping_rtt = (time.time_ns() // 1000) - peer._last_ping_at
         else:
-            self._sc.log.debug('Pong received out of order %s', peer._address)
+            self._sc.log.debug("Pong received out of order %s", peer._address)
 
         peer._recv_nonce = hashlib.sha256(nonce + mac).digest()
 
     def send_ping(self, peer):
         ping_nonce = random.getrandbits(32)
 
-        msg_bytes = int(NetMessageTypes.PING).to_bytes(2, 'big')
+        msg_bytes = int(NetMessageTypes.PING).to_bytes(2, "big")
         nonce = peer._sent_nonce[:24]
 
         cipher = ChaCha20_Poly1305.new(key=peer._ke, nonce=nonce)
         cipher.update(msg_bytes)
         cipher.update(nonce)
 
-        payload = ping_nonce.to_bytes(4, 'big')
+        payload = ping_nonce.to_bytes(4, "big")
         if peer._last_ping_at == 0:
             payload += self._sc._version
         ct, mac = cipher.encrypt_and_digest(payload)
@@ -483,14 +547,14 @@ class Network:
         self.send_msg(peer, msg_bytes)
 
     def send_pong(self, peer, ping_nonce):
-        msg_bytes = int(NetMessageTypes.PONG).to_bytes(2, 'big')
+        msg_bytes = int(NetMessageTypes.PONG).to_bytes(2, "big")
         nonce = peer._sent_nonce[:24]
 
         cipher = ChaCha20_Poly1305.new(key=peer._ke, nonce=nonce)
         cipher.update(msg_bytes)
         cipher.update(nonce)
 
-        payload = ping_nonce.to_bytes(4, 'big')
+        payload = ping_nonce.to_bytes(4, "big")
         ct, mac = cipher.encrypt_and_digest(payload)
         msg_bytes += ct + mac
 
@@ -502,19 +566,21 @@ class Network:
         msg_encoded = msg if isinstance(msg, bytes) else msg.encode()
         len_encoded = len(msg_encoded)
 
-        msg_packed = bytearray(MSG_START_TOKEN) + len_encoded.to_bytes(4, 'big') + msg_encoded
+        msg_packed = (
+            bytearray(MSG_START_TOKEN) + len_encoded.to_bytes(4, "big") + msg_encoded
+        )
         peer._socket.sendall(msg_packed)
 
         peer._bytes_sent += len_encoded
 
     def process_message(self, peer, msg_bytes):
-        logging.info('[rm] process_message %s len %d', peer._address, len(msg_bytes))
+        logging.info("[rm] process_message %s len %d", peer._address, len(msg_bytes))
 
         peer._mx.acquire()
         try:
             mv = memoryview(msg_bytes)
             o = 0
-            msg_type = int.from_bytes(mv[o: o + 2], 'big')
+            msg_type = int.from_bytes(mv[o : o + 2], "big")
             if msg_type == NetMessageTypes.HANDSHAKE:
                 self.process_handshake(peer, mv)
             elif msg_type == NetMessageTypes.PING:
@@ -522,7 +588,7 @@ class Network:
             elif msg_type == NetMessageTypes.PONG:
                 self.process_pong(peer, mv)
             else:
-                self._sc.log.debug('Unknown message type %d', msg_type)
+                self._sc.log.debug("Unknown message type %d", msg_type)
         finally:
             peer._mx.release()
 
@@ -533,7 +599,6 @@ class Network:
         peer._last_received_at = time.time()
         peer._bytes_received += len_received
 
-        invalid_msg = False
         mv = memoryview(bytes_recv)
 
         o = 0
@@ -541,34 +606,34 @@ class Network:
             while o < len_received:
                 if peer._receiving_length == 0:
                     if len(bytes_recv) < MSG_HEADER_LEN:
-                        raise ValueError('Msg too short')
+                        raise ValueError("Msg too short")
 
-                    if mv[o: o + 2] != MSG_START_TOKEN:
-                        raise ValueError('Invalid start token')
+                    if mv[o : o + 2] != MSG_START_TOKEN:
+                        raise ValueError("Invalid start token")
                     o += 2
 
-                    msg_len = int.from_bytes(mv[o: o + 4], 'big')
+                    msg_len = int.from_bytes(mv[o : o + 4], "big")
                     o += 4
                     if msg_len < 2 or msg_len > MSG_MAX_SIZE:
-                        raise ValueError('Invalid data length')
+                        raise ValueError("Invalid data length")
 
                     # Precheck msg_type
-                    msg_type = int.from_bytes(mv[o: o + 2], 'big')
+                    msg_type = int.from_bytes(mv[o : o + 2], "big")
                     # o += 2  # Don't inc offset, msg includes type
                     if not NetMessageTypes.has_value(msg_type):
-                        raise ValueError('Invalid msg type')
+                        raise ValueError("Invalid msg type")
 
                     peer._receiving_length = msg_len
-                    len_pkt = (len_received - o)
+                    len_pkt = len_received - o
                     nc = msg_len if len_pkt > msg_len else len_pkt
 
-                    peer._receiving_buffer = mv[o: o + nc]
+                    peer._receiving_buffer = mv[o : o + nc]
                     o += nc
                 else:
                     len_to_go = peer._receiving_length - len(peer._receiving_buffer)
-                    len_pkt = (len_received - o)
+                    len_pkt = len_received - o
                     nc = len_to_go if len_pkt > len_to_go else len_pkt
-                    peer._receiving_buffer = mv[o: o + nc]
+                    peer._receiving_buffer = mv[o : o + nc]
                     o += nc
                 if len(peer._receiving_buffer) == peer._receiving_length:
                     peer._recv_messages.put(peer._receiving_buffer)
@@ -576,11 +641,13 @@ class Network:
 
         except Exception as e:
             if self._sc.debug:
-                self._sc.log.error('Invalid message received from %s %s', peer._address, str(e))
+                self._sc.log.error(
+                    "Invalid message received from %s %s", peer._address, str(e)
+                )
             # TODO: misbehaving
 
     def test_onion(self, path):
-        self._sc.log.debug('test_onion packet')
+        self._sc.log.debug("test_onion packet")
 
     def get_info(self):
         rv = {}
@@ -589,14 +656,14 @@ class Network:
         with self._mx:
             for peer in self._peers:
                 peer_info = {
-                    'pubkey': 'Unknown' if not peer._pubkey else peer._pubkey.hex(),
-                    'address': '{}:{}'.format(peer._address[0], peer._address[1]),
-                    'bytessent': peer._bytes_sent,
-                    'bytesrecv': peer._bytes_received,
-                    'ready': peer._ready,
-                    'incoming': peer._incoming,
+                    "pubkey": "Unknown" if not peer._pubkey else peer._pubkey.hex(),
+                    "address": "{}:{}".format(peer._address[0], peer._address[1]),
+                    "bytessent": peer._bytes_sent,
+                    "bytesrecv": peer._bytes_received,
+                    "ready": peer._ready,
+                    "incoming": peer._incoming,
                 }
                 peers.append(peer_info)
 
-        rv['peers'] = peers
+        rv["peers"] = peers
         return rv

basicswap/network/simplex.py

@@ -0,0 +1,516 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2025 The Basicswap developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+import base64
+import json
+import threading
+import traceback
+import websocket
+
+
+from queue import Queue, Empty
+
+from basicswap.util.smsg import (
+    smsgEncrypt,
+    smsgDecrypt,
+    smsgGetID,
+)
+from basicswap.chainparams import (
+    Coins,
+)
+from basicswap.util.address import (
+    decodeWif,
+)
+from basicswap.basicswap_util import AddressTypes
+
+
+def encode_base64(data: bytes) -> str:
+    return base64.b64encode(data).decode("utf-8")
+
+
+def decode_base64(encoded_data: str) -> bytes:
+    return base64.b64decode(encoded_data)
+
+
+class WebSocketThread(threading.Thread):
+    def __init__(self, url: str, tag: str = None, logger=None):
+        super().__init__()
+        self.url: str = url
+        self.tag = tag
+        self.logger = logger
+        self.ws = None
+        self.mutex = threading.Lock()
+        self.corrId: int = 0
+        self.connected: bool = False
+        self.delay_event = threading.Event()
+
+        self.recv_queue = Queue()
+        self.cmd_recv_queue = Queue()
+        self.delayed_events_queue = Queue()
+
+        self.ignore_events: bool = False
+
+        self.num_messages_received: int = 0
+
+    def disable_debug_mode(self):
+        self.ignore_events = False
+        for i in range(100):
+            try:
+                message = self.delayed_events_queue.get(block=False)
+            except Empty:
+                break
+            self.recv_queue.put(message)
+
+    def on_message(self, ws, message):
+        if self.logger:
+            self.logger.debug("Simplex received msg")
+        else:
+            print(f"{self.tag} - Received msg")
+
+        if message.startswith('{"corrId"'):
+            self.cmd_recv_queue.put(message)
+        else:
+            self.num_messages_received += 1
+            self.recv_queue.put(message)
+
+    def queue_get(self):
+        try:
+            return self.recv_queue.get(block=False)
+        except Empty:
+            return None
+
+    def cmd_queue_get(self):
+        try:
+            return self.cmd_recv_queue.get(block=False)
+        except Empty:
+            return None
+
+    def on_error(self, ws, error):
+        if self.logger:
+            self.logger.error(f"Simplex ws - {error}")
+        else:
+            print(f"{self.tag} - Error: {error}")
+
+    def on_close(self, ws, close_status_code, close_msg):
+        if self.logger:
+            self.logger.info(f"Simplex ws - Closed: {close_status_code}, {close_msg}")
+        else:
+            print(f"{self.tag} - Closed: {close_status_code}, {close_msg}")
+
+    def on_open(self, ws):
+        if self.logger:
+            self.logger.info("Simplex ws - Connection opened")
+        else:
+            print(f"{self.tag}: WebSocket connection opened")
+        self.connected = True
+
+    def send_command(self, cmd_str: str):
+        with self.mutex:
+            self.corrId += 1
+            if self.logger:
+                self.logger.debug(f"Simplex sent command {self.corrId}")
+            else:
+                print(f"{self.tag}: sent command {self.corrId}")
+            cmd = json.dumps({"corrId": str(self.corrId), "cmd": cmd_str})
+            self.ws.send(cmd)
+            return self.corrId
+
+    def wait_for_command_response(self, cmd_id, num_tries: int = 200):
+        cmd_id = str(cmd_id)
+        for i in range(num_tries):
+            message = self.cmd_queue_get()
+            if message is not None:
+                data = json.loads(message)
+                if "corrId" in data:
+                    if data["corrId"] == cmd_id:
+                        return data
+            self.delay_event.wait(0.5)
+        raise ValueError(
+            f"wait_for_command_response timed-out waiting for ID: {cmd_id}"
+        )
+
+    def run(self):
+        self.ws = websocket.WebSocketApp(
+            self.url,
+            on_message=self.on_message,
+            on_error=self.on_error,
+            on_open=self.on_open,
+            on_close=self.on_close,
+        )
+        while not self.delay_event.is_set():
+            self.ws.run_forever()
+            self.delay_event.wait(0.5)
+
+    def stop(self):
+        self.delay_event.set()
+        if self.ws:
+            self.ws.close()
+
+
+def waitForResponse(ws_thread, sent_id, delay_event):
+    sent_id = str(sent_id)
+    for i in range(200):
+        message = ws_thread.cmd_queue_get()
+        if message is not None:
+            data = json.loads(message)
+            if "corrId" in data:
+                if data["corrId"] == sent_id:
+                    return data
+        delay_event.wait(0.5)
+    raise ValueError(f"waitForResponse timed-out waiting for ID: {sent_id}")
+
+
+def waitForConnected(ws_thread, delay_event):
+    for i in range(100):
+        if ws_thread.connected:
+            return True
+        delay_event.wait(0.5)
+    raise ValueError("waitForConnected timed-out.")
+
+
+def encryptMsg(
+    self,
+    addr_from: str,
+    addr_to: str,
+    payload: bytes,
+    msg_valid: int,
+    cursor,
+    timestamp=None,
+    deterministic=False,
+    difficulty_target=0x1EFFFFFF,
+) -> bytes:
+    self.log.debug("encryptMsg")
+
+    pubkey_to = self.getPubkeyForAddress(cursor, addr_to)
+    privkey_from = self.getPrivkeyForAddress(cursor, addr_from)
+
+    smsg_msg: bytes = smsgEncrypt(
+        privkey_from,
+        pubkey_to,
+        payload,
+        timestamp,
+        deterministic,
+        msg_valid,
+        difficulty_target=difficulty_target,
+    )
+
+    return smsg_msg
+
+
+def sendSimplexMsg(
+    self,
+    network,
+    addr_from: str,
+    addr_to: str,
+    payload: bytes,
+    msg_valid: int,
+    cursor,
+    timestamp: int = None,
+    deterministic: bool = False,
+    to_user_name: str = None,
+    return_msg: bool = False,
+    difficulty_target=0x1EFFFFFF,
+) -> bytes:
+    self.log.debug("sendSimplexMsg")
+
+    smsg_msg: bytes = encryptMsg(
+        self,
+        addr_from,
+        addr_to,
+        payload,
+        msg_valid,
+        cursor,
+        timestamp,
+        deterministic,
+        difficulty_target,
+    )
+    smsg_id = smsgGetID(smsg_msg)
+
+    ws_thread = network["ws_thread"]
+    if to_user_name is not None:
+        to = "@" + to_user_name + " "
+    else:
+        to = "#bsx "
+    sent_id = ws_thread.send_command(to + encode_base64(smsg_msg))
+    response = waitForResponse(ws_thread, sent_id, self.delay_event)
+    if getResponseData(response, "type") != "newChatItems":
+        json_str = json.dumps(response, indent=4)
+        self.log.debug(f"Response {json_str}")
+        raise ValueError("Send failed")
+    if to_user_name is not None:
+        self.num_direct_simplex_messages_sent += 1
+    else:
+        self.num_group_simplex_messages_sent += 1
+
+    if return_msg:
+        return smsg_id, smsg_msg
+    return smsg_id
+
+
+def forwardSimplexMsg(self, network, smsg_msg, to_user_name: str = None):
+    smsg_id = smsgGetID(smsg_msg)
+    ws_thread = network["ws_thread"]
+    if to_user_name is not None:
+        to = "@" + to_user_name + " "
+    else:
+        to = "#bsx "
+    sent_id = ws_thread.send_command(to + encode_base64(smsg_msg))
+    response = waitForResponse(ws_thread, sent_id, self.delay_event)
+    if getResponseData(response, "type") != "newChatItems":
+        json_str = json.dumps(response, indent=4)
+        self.log.debug(f"Response {json_str}")
+        raise ValueError("Send failed")
+    if to_user_name is not None:
+        self.num_direct_simplex_messages_sent += 1
+    else:
+        self.num_group_simplex_messages_sent += 1
+
+    return smsg_id
+
+
+def decryptSimplexMsg(self, msg_data):
+    ci_part = self.ci(Coins.PART)
+
+    # Try with the network key first
+    network_key: bytes = decodeWif(self.network_key)
+    try:
+        decrypted = smsgDecrypt(network_key, msg_data, output_dict=True)
+        decrypted["from"] = ci_part.pubkey_to_address(
+            bytes.fromhex(decrypted["pubkey_from"])
+        )
+        decrypted["to"] = self.network_addr
+        decrypted["msg_net"] = "simplex"
+        return decrypted
+    except Exception as e:  # noqa: F841
+        pass
+
+    # Try with all active bid/offer addresses
+    query: str = """SELECT DISTINCT address FROM (
+        SELECT b.bid_addr AS address FROM bids b
+               JOIN bidstates s ON b.state = s.state_id
+               WHERE b.active_ind = 1
+                     AND (s.in_progress OR (s.swap_ended = 0 AND b.expire_at > :now))
+        UNION
+        SELECT addr_from AS address FROM offers WHERE active_ind = 1 AND expire_at > :now
+        UNION
+        SELECT addr AS address FROM smsgaddresses WHERE active_ind = 1 AND use_type = :local_portal
+        )"""
+
+    now: int = self.getTime()
+
+    try:
+        cursor = self.openDB()
+        addr_rows = cursor.execute(
+            query, {"now": now, "local_portal": AddressTypes.PORTAL_LOCAL}
+        ).fetchall()
+        decrypted = None
+        for row in addr_rows:
+            addr = row[0]
+            try:
+                vk_addr = self.getPrivkeyForAddress(cursor, addr)
+                decrypted = smsgDecrypt(vk_addr, msg_data, output_dict=True)
+                decrypted["from"] = ci_part.pubkey_to_address(
+                    bytes.fromhex(decrypted["pubkey_from"])
+                )
+                decrypted["to"] = addr
+                decrypted["msg_net"] = "simplex"
+                return decrypted
+            except Exception as e:  # noqa: F841
+                pass
+    finally:
+        self.closeDB(cursor, commit=False)
+
+    return decrypted
+
+
+def parseSimplexMsg(self, chat_item):
+    item_status = chat_item["chatItem"]["meta"]["itemStatus"]
+    dir_type = item_status["type"]
+    if dir_type not in ("sndRcvd", "rcvNew"):
+        return None
+
+    snd_progress = item_status.get("sndProgress", None)
+    if snd_progress and snd_progress != "complete":
+        item_id = chat_item["chatItem"]["meta"]["itemId"]
+        self.log.debug(f"simplex chat item {item_id} {snd_progress}")
+        return None
+
+    conn_id = None
+    msg_dir: str = "recv" if dir_type == "rcvNew" else "sent"
+    chat_type: str = chat_item["chatInfo"]["type"]
+    if chat_type == "group":
+        chat_name = chat_item["chatInfo"]["groupInfo"]["localDisplayName"]
+        conn_id = chat_item["chatInfo"]["groupInfo"]["groupId"]
+        self.num_group_simplex_messages_received += 1
+    elif chat_type == "direct":
+        chat_name = chat_item["chatInfo"]["contact"]["localDisplayName"]
+        conn_id = chat_item["chatInfo"]["contact"]["activeConn"]["connId"]
+        self.num_direct_simplex_messages_received += 1
+    else:
+        return None
+
+    msg_content = chat_item["chatItem"]["content"]["msgContent"]["text"]
+    try:
+        msg_data: bytes = decode_base64(msg_content)
+        decrypted_msg = decryptSimplexMsg(self, msg_data)
+        if decrypted_msg is None:
+            return None
+        decrypted_msg["chat_type"] = chat_type
+        decrypted_msg["chat_name"] = chat_name
+        decrypted_msg["conn_id"] = conn_id
+        decrypted_msg["msg_dir"] = msg_dir
+        return decrypted_msg
+    except Exception as e:  # noqa: F841
+        # self.log.debug(f"decryptSimplexMsg error: {e}")
+        pass
+    return None
+
+
+def processEvent(self, ws_thread, msg_type: str, data) -> bool:
+    if ws_thread.ignore_events:
+        if msg_type not in ("contactConnected", "contactDeletedByContact"):
+            return False
+        ws_thread.delayed_events_queue.put(json.dumps(data))
+        return True
+
+    if msg_type == "contactConnected":
+        self.processContactConnected(data)
+    elif msg_type == "contactDeletedByContact":
+        self.processContactDisconnected(data)
+    else:
+        return False
+    return True
+
+
+def readSimplexMsgs(self, network):
+    ws_thread = network["ws_thread"]
+    for i in range(100):
+        message = ws_thread.queue_get()
+        if message is None:
+            break
+        if self.delay_event.is_set():
+            break
+
+        data = json.loads(message)
+        # self.log.debug(f"Message: {json.dumps(data, indent=4)}")
+        try:
+            msg_type: str = getResponseData(data, "type")
+            if msg_type in ("chatItemsStatusesUpdated", "newChatItems"):
+                for chat_item in getResponseData(data, "chatItems"):
+                    decrypted_msg = parseSimplexMsg(self, chat_item)
+                    if decrypted_msg is None:
+                        continue
+                    self.processMsg(decrypted_msg)
+            elif msg_type == "chatError":
+                # self.log.debug(f"chatError Message: {json.dumps(data, indent=4)}")
+                pass
+            elif processEvent(self, ws_thread, msg_type, data):
+                pass
+            else:
+                self.log.debug(f"simplex: Unknown msg_type: {msg_type}")
+                # self.log.debug(f"Message: {json.dumps(data, indent=4)}")
+        except Exception as e:
+            self.log.debug(f"readSimplexMsgs error: {e}")
+            if self.debug:
+                self.log.error(traceback.format_exc())
+
+        self.delay_event.wait(0.05)
+
+
+def getResponseData(data, tag=None):
+    for pretag in ("Right", "Left"):
+        if pretag in data["resp"]:
+            if tag:
+                return data["resp"][pretag][tag]
+            return data["resp"][pretag]
+    if tag:
+        return data["resp"][tag]
+    return data["resp"]
+
+
+def getNewSimplexLink(data):
+    response_data = getResponseData(data)
+    if "connLinkContact" in response_data:
+        return response_data["connLinkContact"]["connFullLink"]
+    return response_data["connReqContact"]
+
+
+def getJoinedSimplexLink(data):
+    response_data = getResponseData(data)
+    if "connLinkInvitation" in response_data:
+        return response_data["connLinkInvitation"]["connFullLink"]
+    return response_data["connReqInvitation"]
+
+
+def initialiseSimplexNetwork(self, network_config) -> None:
+    self.log.debug("initialiseSimplexNetwork")
+
+    client_host: str = network_config.get("client_host", "127.0.0.1")
+    ws_port: str = network_config.get("ws_port")
+
+    ws_thread = WebSocketThread(f"ws://{client_host}:{ws_port}", logger=self.log)
+    self.threads.append(ws_thread)
+    ws_thread.start()
+    waitForConnected(ws_thread, self.delay_event)
+
+    sent_id = ws_thread.send_command("/groups")
+    response = waitForResponse(ws_thread, sent_id, self.delay_event)
+
+    if len(getResponseData(response, "groups")) < 1:
+        sent_id = ws_thread.send_command("/c " + network_config["group_link"])
+        response = waitForResponse(ws_thread, sent_id, self.delay_event)
+        assert "groupLinkId" in getResponseData(response, "connection")
+
+    add_network = {
+        "type": "simplex",
+        "ws_thread": ws_thread,
+    }
+    if "bridged" in network_config:
+        add_network["bridged"] = network_config["bridged"]
+
+    self.active_networks.append(add_network)
+
+
+def closeSimplexChat(self, net_i, connId) -> bool:
+    try:
+        cmd_id = net_i.send_command("/chats")
+        response = net_i.wait_for_command_response(cmd_id, num_tries=500)
+        remote_name = None
+        for chat in getResponseData(response, "chats"):
+            if (
+                "chatInfo" not in chat
+                or "type" not in chat["chatInfo"]
+                or chat["chatInfo"]["type"] != "direct"
+            ):
+                continue
+            try:
+                if chat["chatInfo"]["contact"]["activeConn"]["connId"] == connId:
+                    remote_name = chat["chatInfo"]["contact"]["localDisplayName"]
+                    break
+            except Exception as e:
+                self.log.debug(f"Error parsing chat: {e}")
+
+        if remote_name is None:
+            self.log.warning(
+                f"Unable to find remote name for simplex direct chat, ID: {connId}"
+            )
+            return False
+
+        self.log.debug(f"Deleting simplex chat @{remote_name}, connID {connId}")
+        cmd_id = net_i.send_command(f"/delete @{remote_name}")
+        cmd_response = net_i.wait_for_command_response(cmd_id)
+
+        if getResponseData(cmd_response, "type") != "contactDeleted":
+            self.log.warning(f"Failed to delete simplex chat, ID: {connId}")
+            self.log.debug(
+                "cmd_response: {}".format(json.dumps(cmd_response, indent=4))
+            )
+            return False
+    except Exception as e:
+        self.log.warning(f"Error deleting simplex chat, ID: {connId} - {e}")
+        return False
+    return True

basicswap/network/simplex_chat.py

@@ -0,0 +1,158 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2025 The Basicswap developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+import os
+import select
+import sqlite3
+import subprocess
+import time
+
+from basicswap.util.daemon import Daemon
+
+
+def serverExistsInDatabase(simplex_db_path: str, server_address: str, logger) -> bool:
+    try:
+        # Extract hostname from SMP URL format: smp://fingerprint@hostname
+        if server_address.startswith("smp://") and "@" in server_address:
+            host = server_address.split("@")[-1]
+        elif ":" in server_address:
+            host = server_address.split(":", 1)[0]
+        else:
+            host = server_address
+
+        with sqlite3.connect(simplex_db_path) as con:
+            c = con.cursor()
+
+            # Check for any server entry with this hostname
+            query = (
+                "SELECT COUNT(*) FROM protocol_servers WHERE host LIKE ? OR host = ?"
+            )
+            host_pattern = f"%{host}%"
+            count = c.execute(query, (host_pattern, host)).fetchone()[0]
+
+            if count > 0:
+                logger.debug(
+                    f"Server {host} already exists in database ({count} entries)"
+                )
+                return True
+            else:
+                logger.debug(f"Server {host} not found in database")
+                return False
+
+    except Exception as e:
+        logger.error(f"Database check failed: {e}")
+        return False
+
+
+def initSimplexClient(args, logger, delay_event):
+    # Need to set initial profile through CLI
+    # TODO: Must be a better way?
+    logger.info("Initialising Simplex client")
+
+    (pipe_r, pipe_w) = os.pipe()  # subprocess.PIPE is buffered, blocks when read
+
+    if os.name == "nt":
+        str_args = " ".join(args)
+        p = subprocess.Popen(
+            str_args, shell=True, stdin=subprocess.PIPE, stdout=pipe_w, stderr=pipe_w
+        )
+    else:
+        p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=pipe_w, stderr=pipe_w)
+
+    def readOutput():
+        buf = os.read(pipe_r, 1024).decode("utf-8")
+        response = None
+        # logger.debug(f"simplex-chat output: {buf}")
+        if "display name:" in buf:
+            logger.debug("Setting display name")
+            response = b"user\n"
+        else:
+            logger.debug(f"Unexpected output: {buf}")
+            return
+        if response is not None:
+            p.stdin.write(response)
+            p.stdin.flush()
+
+    try:
+        start_time: int = time.time()
+        max_wait_seconds: int = 60
+        while p.poll() is None:
+            if time.time() > start_time + max_wait_seconds:
+                raise RuntimeError("Timed out")
+            if os.name == "nt":
+                readOutput()
+                delay_event.wait(0.1)
+                continue
+            while len(select.select([pipe_r], [], [], 0)[0]) == 1:
+                readOutput()
+                delay_event.wait(0.1)
+    except Exception as e:
+        logger.error(f"initSimplexClient: {e}")
+    finally:
+        if p.poll() is None:
+            p.terminate()
+        os.close(pipe_r)
+        os.close(pipe_w)
+        p.stdin.close()
+
+
+def startSimplexClient(
+    bin_path: str,
+    data_path: str,
+    server_address: str,
+    websocket_port: int,
+    logger,
+    delay_event,
+    socks_proxy=None,
+    log_level: str = "debug",
+) -> Daemon:
+    logger.info("Starting Simplex client")
+    if not os.path.exists(data_path):
+        os.makedirs(data_path)
+
+    simplex_data_prefix = os.path.join(data_path, "simplex_client_data")
+    simplex_db_path = simplex_data_prefix + "_chat.db"
+    args = [bin_path, "-d", simplex_data_prefix, "-p", str(websocket_port)]
+
+    if socks_proxy:
+        args += ["--socks-proxy", socks_proxy]
+
+    if not os.path.exists(simplex_db_path):
+        # Database doesn't exist - safe to add server during initialization
+        logger.info("Database not found, initializing Simplex client")
+        init_args = args + ["-e", "/help"]  # Run command to exit client
+        init_args += ["-s", server_address]
+        initSimplexClient(init_args, logger, delay_event)
+    else:
+        # Database exists - only add server if it's not already there
+        if not serverExistsInDatabase(simplex_db_path, server_address, logger):
+            logger.debug(f"Adding server to Simplex CLI args: {server_address}")
+            args += ["-s", server_address]
+        else:
+            logger.debug("Server already exists, not adding to CLI args")
+
+    args += ["-l", log_level]
+
+    opened_files = []
+    stdout_dest = open(
+        os.path.join(data_path, "simplex_stdout.log"),
+        "w",
+    )
+    opened_files.append(stdout_dest)
+    stderr_dest = stdout_dest
+    return Daemon(
+        subprocess.Popen(
+            args,
+            shell=False,
+            stdin=subprocess.PIPE,
+            stdout=stdout_dest,
+            stderr=stderr_dest,
+            cwd=data_path,
+        ),
+        opened_files,
+        "simplex-chat",
+    )

basicswap/network/util.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2025 The Basicswap developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+from basicswap.util.address import b58decode
+
+
+def getMsgPubkey(self, msg) -> bytes:
+    if "pubkey_from" in msg:
+        return bytes.fromhex(msg["pubkey_from"])
+    rv = self.callrpc(
+        "smsggetpubkey",
+        [
+            msg["from"],
+        ],
+    )
+    return b58decode(rv["publickey"])

basicswap/pgp/keys/SimpleX_Chat.pgp

@@ -0,0 +1,54 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Comment: FB44 AF81 A45B DE32 7319  797C 8510 7E35 7D4A 17FC
+Comment: SimpleX Chat <chat@simplex.chat>
+
+xsFNBGRDvZkBEACsxFENFWj5hMS1dCPCOXIJTNnWClVarltfUOESy5q0Ar84WJaj
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basicswap/pgp/keys/dogecoin_patricklodder.pgp

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basicswap/pgp/keys/dogecoin_xanimo.pgp

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basicswap/pgp/keys/namecoin_RoseTuring.pgp

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basicswap/pgp/keys/nicolasdorier.asc

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+Version: Keybase Go 5.0.0 (windows)
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+Pth67bbNVYyP/cuOIrv/hqQ6xo4mOBMDDxcCEAXx3rwxfbxNM8vlwrMcpITrtNON
+r41bcxUIfMEDefPm5wnXep8W
+=szpX
+-----END PGP PUBLIC KEY BLOCK-----

basicswap/pgp/keys/wownero_wowario.pgp

@@ -0,0 +1,29 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQINBGROehcBEACXWWc6dHqCos1PmKI32iHi0jP3mYM3jU57YxbjwT78QEtEwSqf
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+h4uDUhzeG2cTxuIfZC881UHKL+xT/I3PPuFdLbU5uoWJpXYpxKYulYWd7LA/k4bi
+JWBrQo7VDvvP
+=H3wS
+-----END PGP PUBLIC KEY BLOCK-----

basicswap/pgp/sigs/utxo-snapshot-bitcoin-mainnet-867690.tar.asc

@@ -0,0 +1,16 @@
+-----BEGIN PGP SIGNATURE-----
+
+iQIzBAABCAAdFiEEjlF9wS7BzDf2QjqKE/E2UcnPDWsFAmeP/40ACgkQE/E2UcnP
+DWuraw/9HCuAZG+D6xSLWmjA9Dtj9OZMEOIxqvxw+1e2KQ5ek4d1waL63NWFQfMi
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+DjjEO/0PY9i0m/ivQUXf5ZPSnlkAR8x6Ve2S2MvQd7nFoS/YfLs=
+=0pTn
+-----END PGP SIGNATURE-----

basicswap/pgp/sigs/utxo-snapshot-bitcoin-mainnet-hashes.asc

@@ -0,0 +1,21 @@
+-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA256
+
+725a049bc5a9fd60b05bba4d4825d35115d99f05ab5b7716d4507c295d05172d  utxo-snapshot-bitcoin-mainnet-820852.tar
+744c42885df700513331a978b289d9c9d5b27e0cf1147f2f5a287b4492ff940c  utxo-snapshot-bitcoin-mainnet-867690.tar
+-----BEGIN PGP SIGNATURE-----
+
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+AmMsGeZoplm/eUofQ9hItWcVitPhisDmC3wDR71UKM0b9FF6IUY=
+=YUjt
+-----END PGP SIGNATURE-----

basicswap/protocols/__init__.py

@@ -16,19 +16,26 @@ class ProtocolInterface:
     swap_type = None
 
     def getFundedInitiateTxTemplate(self, ci, amount: int, sub_fee: bool) -> bytes:
-        raise ValueError('base class')
+        raise ValueError("base class")
 
     def getMockScript(self) -> bytearray:
-        return bytearray([
-            OpCodes.OP_RETURN, OpCodes.OP_1])
+        return bytearray([OpCodes.OP_RETURN, OpCodes.OP_1])
 
     def getMockScriptScriptPubkey(self, ci) -> bytearray:
         script = self.getMockScript()
-        return ci.getScriptDest(script) if ci._use_segwit else ci.get_p2sh_script_pubkey(script)
+        return (
+            ci.getScriptDest(script)
+            if ci._use_segwit
+            else ci.get_p2sh_script_pubkey(script)
+        )
 
     def getMockAddrTo(self, ci):
         script = self.getMockScript()
-        return ci.encodeScriptDest(ci.getScriptDest(script)) if ci._use_segwit else ci.encode_p2sh(script)
+        return (
+            ci.encodeScriptDest(ci.getScriptDest(script))
+            if ci._use_segwit
+            else ci.encode_p2sh(script)
+        )
 
     def findMockVout(self, ci, itx_decoded):
         mock_addr = self.getMockAddrTo(ci)

basicswap/protocols/atomic_swap_1.py

@@ -26,73 +26,91 @@ INITIATE_TX_TIMEOUT = 40 * 60  # TODO: make variable per coin
 ABS_LOCK_TIME_LEEWAY = 10 * 60
 
 
-def buildContractScript(lock_val: int, secret_hash: bytes, pkh_redeem: bytes, pkh_refund: bytes, op_lock=OpCodes.OP_CHECKSEQUENCEVERIFY, op_hash=OpCodes.OP_SHA256) -> bytearray:
-    script = bytearray([
+def buildContractScript(
+    lock_val: int,
+    secret_hash: bytes,
+    pkh_redeem: bytes,
+    pkh_refund: bytes,
+    op_lock=OpCodes.OP_CHECKSEQUENCEVERIFY,
+    op_hash=OpCodes.OP_SHA256,
+) -> bytearray:
+    script = (
+        bytearray(
+            [
                 OpCodes.OP_IF,
                 OpCodes.OP_SIZE,
-        0x01, 0x20,  # 32
+                0x01,
+                0x20,  # 32
                 OpCodes.OP_EQUALVERIFY,
                 op_hash,
-        0x20]) \
-        + secret_hash \
-        + bytearray([
-            OpCodes.OP_EQUALVERIFY,
-            OpCodes.OP_DUP,
-            OpCodes.OP_HASH160,
-            0x14]) \
-        + pkh_redeem \
-        + bytearray([OpCodes.OP_ELSE, ]) \
-        + SerialiseNum(lock_val) \
-        + bytearray([
-            op_lock,
-            OpCodes.OP_DROP,
-            OpCodes.OP_DUP,
-            OpCodes.OP_HASH160,
-            0x14]) \
-        + pkh_refund \
-        + bytearray([
-            OpCodes.OP_ENDIF,
-            OpCodes.OP_EQUALVERIFY,
-            OpCodes.OP_CHECKSIG])
+                0x20,
+            ]
+        )
+        + secret_hash
+        + bytearray([OpCodes.OP_EQUALVERIFY, OpCodes.OP_DUP, OpCodes.OP_HASH160, 0x14])
+        + pkh_redeem
+        + bytearray(
+            [
+                OpCodes.OP_ELSE,
+            ]
+        )
+        + SerialiseNum(lock_val)
+        + bytearray(
+            [op_lock, OpCodes.OP_DROP, OpCodes.OP_DUP, OpCodes.OP_HASH160, 0x14]
+        )
+        + pkh_refund
+        + bytearray([OpCodes.OP_ENDIF, OpCodes.OP_EQUALVERIFY, OpCodes.OP_CHECKSIG])
+    )
     return script
 
 
-def verifyContractScript(script, op_lock=OpCodes.OP_CHECKSEQUENCEVERIFY, op_hash=OpCodes.OP_SHA256):
-    if script[0] != OpCodes.OP_IF or \
-       script[1] != OpCodes.OP_SIZE or \
-       script[2] != 0x01 or script[3] != 0x20 or \
-       script[4] != OpCodes.OP_EQUALVERIFY or \
-       script[5] != op_hash or \
-       script[6] != 0x20:
+def verifyContractScript(
+    script, op_lock=OpCodes.OP_CHECKSEQUENCEVERIFY, op_hash=OpCodes.OP_SHA256
+):
+    if (
+        script[0] != OpCodes.OP_IF
+        or script[1] != OpCodes.OP_SIZE
+        or script[2] != 0x01
+        or script[3] != 0x20
+        or script[4] != OpCodes.OP_EQUALVERIFY
+        or script[5] != op_hash
+        or script[6] != 0x20
+    ):
         return False, None, None, None, None
     o = 7
-    script_hash = script[o: o + 32]
+    script_hash = script[o : o + 32]
     o += 32
-    if script[o] != OpCodes.OP_EQUALVERIFY or \
-       script[o + 1] != OpCodes.OP_DUP or \
-       script[o + 2] != OpCodes.OP_HASH160 or \
-       script[o + 3] != 0x14:
+    if (
+        script[o] != OpCodes.OP_EQUALVERIFY
+        or script[o + 1] != OpCodes.OP_DUP
+        or script[o + 2] != OpCodes.OP_HASH160
+        or script[o + 3] != 0x14
+    ):
         return False, script_hash, None, None, None
     o += 4
-    pkh_redeem = script[o: o + 20]
+    pkh_redeem = script[o : o + 20]
     o += 20
     if script[o] != OpCodes.OP_ELSE:
         return False, script_hash, pkh_redeem, None, None
     o += 1
     lock_val, nb = decodeScriptNum(script, o)
     o += nb
-    if script[o] != op_lock or \
-       script[o + 1] != OpCodes.OP_DROP or \
-       script[o + 2] != OpCodes.OP_DUP or \
-       script[o + 3] != OpCodes.OP_HASH160 or \
-       script[o + 4] != 0x14:
+    if (
+        script[o] != op_lock
+        or script[o + 1] != OpCodes.OP_DROP
+        or script[o + 2] != OpCodes.OP_DUP
+        or script[o + 3] != OpCodes.OP_HASH160
+        or script[o + 4] != 0x14
+    ):
         return False, script_hash, pkh_redeem, lock_val, None
     o += 5
-    pkh_refund = script[o: o + 20]
+    pkh_refund = script[o : o + 20]
     o += 20
-    if script[o] != OpCodes.OP_ENDIF or \
-       script[o + 1] != OpCodes.OP_EQUALVERIFY or \
-       script[o + 2] != OpCodes.OP_CHECKSIG:
+    if (
+        script[o] != OpCodes.OP_ENDIF
+        or script[o + 1] != OpCodes.OP_EQUALVERIFY
+        or script[o + 2] != OpCodes.OP_CHECKSIG
+    ):
         return False, script_hash, pkh_redeem, lock_val, pkh_refund
     return True, script_hash, pkh_redeem, lock_val, pkh_refund
 
@@ -101,16 +119,23 @@ def extractScriptSecretHash(script):
     return script[7:39]
 
 
-def redeemITx(self, bid_id: bytes, session):
-    bid, offer = self.getBidAndOffer(bid_id, session)
+def redeemITx(self, bid_id: bytes, cursor):
+    bid, offer = self.getBidAndOffer(bid_id, cursor)
     ci_from = self.ci(offer.coin_from)
 
-    txn = self.createRedeemTxn(ci_from.coin_type(), bid, for_txn_type='initiate', session=session)
+    txn = self.createRedeemTxn(
+        ci_from.coin_type(), bid, for_txn_type="initiate", cursor=cursor
+    )
     txid = ci_from.publishTx(bytes.fromhex(txn))
 
     bid.initiate_tx.spend_txid = bytes.fromhex(txid)
-    self.log.debug('Submitted initiate redeem txn %s to %s chain for bid %s', txid, ci_from.coin_name(), bid_id.hex())
-    self.logEvent(Concepts.BID, bid_id, EventLogTypes.ITX_REDEEM_PUBLISHED, '', session)
+    self.log.debug(
+        "Submitted initiate redeem txn %s to %s chain for bid %s",
+        txid,
+        ci_from.coin_name(),
+        bid_id.hex(),
+    )
+    self.logEvent(Concepts.BID, bid_id, EventLogTypes.ITX_REDEEM_PUBLISHED, "", cursor)
 
 
 class AtomicSwapInterface(ProtocolInterface):
@@ -118,13 +143,19 @@ class AtomicSwapInterface(ProtocolInterface):
 
     def getFundedInitiateTxTemplate(self, ci, amount: int, sub_fee: bool) -> bytes:
         addr_to = self.getMockAddrTo(ci)
-        funded_tx = ci.createRawFundedTransaction(addr_to, amount, sub_fee, lock_unspents=False)
+        funded_tx = ci.createRawFundedTransaction(
+            addr_to, amount, sub_fee, lock_unspents=False
+        )
 
         return bytes.fromhex(funded_tx)
 
     def promoteMockTx(self, ci, mock_tx: bytes, script: bytearray) -> bytearray:
         mock_txo_script = self.getMockScriptScriptPubkey(ci)
-        real_txo_script = ci.getScriptDest(script) if ci._use_segwit else ci.get_p2sh_script_pubkey(script)
+        real_txo_script = (
+            ci.getScriptDest(script)
+            if ci._use_segwit
+            else ci.get_p2sh_script_pubkey(script)
+        )
 
         found: int = 0
         ctx = ci.loadTx(mock_tx)
@@ -134,9 +165,9 @@ class AtomicSwapInterface(ProtocolInterface):
                 found += 1
 
         if found < 1:
-            raise ValueError('Mocked output not found')
+            raise ValueError("Mocked output not found")
         if found > 1:
-            raise ValueError('Too many mocked outputs found')
+            raise ValueError("Too many mocked outputs found")
         ctx.nLockTime = 0
 
         funded_tx = ctx.serialize()

basicswap/protocols/xmr_swap_1.py

@@ -1,9 +1,12 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
+# Copyright (c) 2024-2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
+import traceback
+
 from basicswap.util import (
     ensure,
 )
@@ -12,23 +15,23 @@ from basicswap.chainparams import (
     Coins,
 )
 from basicswap.basicswap_util import (
+    EventLogTypes,
     KeyTypes,
     SwapTypes,
-    EventLogTypes,
+    TxTypes,
 )
 from . import ProtocolInterface
-from basicswap.contrib.test_framework.script import (
-    CScript, CScriptOp,
-    OP_CHECKMULTISIG
-)
+from basicswap.contrib.test_framework.script import CScript, CScriptOp, OP_CHECKMULTISIG
 
 
 def addLockRefundSigs(self, xmr_swap, ci):
-    self.log.debug('Setting lock refund tx sigs')
+    self.log.debug("Setting lock refund tx sigs")
 
     witness_stack = []
-    if ci.coin_type() not in (Coins.DCR, ):
-        witness_stack += [b'', ]
+    if ci.coin_type() not in (Coins.DCR,):
+        witness_stack += [
+            b"",
+        ]
     witness_stack += [
         xmr_swap.al_lock_refund_tx_sig,
         xmr_swap.af_lock_refund_tx_sig,
@@ -36,63 +39,125 @@ def addLockRefundSigs(self, xmr_swap, ci):
     ]
 
     signed_tx = ci.setTxSignature(xmr_swap.a_lock_refund_tx, witness_stack)
-    ensure(signed_tx, 'setTxSignature failed')
+    ensure(signed_tx, "setTxSignature failed")
     xmr_swap.a_lock_refund_tx = signed_tx
 
 
-def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key):
-    self.log.info('Manually recovering %s', bid_id.hex())
+def recoverNoScriptTxnWithKey(self, bid_id: bytes, encoded_key, cursor=None):
+    self.log.info(f"Manually recovering {self.log.id(bid_id)}")
     # Manually recover txn if other key is known
-    session = self.openSession()
     try:
-        bid, xmr_swap = self.getXmrBidFromSession(session, bid_id)
-        ensure(bid, 'Bid not found: {}.'.format(bid_id.hex()))
-        ensure(xmr_swap, 'Adaptor-sig swap not found: {}.'.format(bid_id.hex()))
-        offer, xmr_offer = self.getXmrOfferFromSession(session, bid.offer_id, sent=False)
-        ensure(offer, 'Offer not found: {}.'.format(bid.offer_id.hex()))
-        ensure(xmr_offer, 'Adaptor-sig offer not found: {}.'.format(bid.offer_id.hex()))
-        ci_to = self.ci(offer.coin_to)
+        use_cursor = self.openDB(cursor)
+        bid, xmr_swap = self.getXmrBidFromSession(use_cursor, bid_id)
+        ensure(bid, "Bid not found: {}.".format(bid_id.hex()))
+        ensure(xmr_swap, "Adaptor-sig swap not found: {}.".format(bid_id.hex()))
+        offer, xmr_offer = self.getXmrOfferFromSession(use_cursor, bid.offer_id)
+        ensure(offer, "Offer not found: {}.".format(bid.offer_id.hex()))
+        ensure(xmr_offer, "Adaptor-sig offer not found: {}.".format(bid.offer_id.hex()))
 
-        for_ed25519 = True if Coins(offer.coin_to) == Coins.XMR else False
+        # The no-script coin is always the follower
+        reverse_bid: bool = self.is_reverse_ads_bid(offer.coin_from, offer.coin_to)
+        ci_from = self.ci(Coins(offer.coin_from))
+        ci_to = self.ci(Coins(offer.coin_to))
+        ci_follower = ci_from if reverse_bid else ci_to
 
         try:
-            decoded_key_half = ci_to.decodeKey(encoded_key)
+            decoded_key_half = ci_follower.decodeKey(encoded_key)
         except Exception as e:
-            raise ValueError('Failed to decode provided key-half: ', str(e))
+            raise ValueError("Failed to decode provided key-half: ", str(e))
 
-        if bid.was_sent:
+        was_sent: bool = bid.was_received if reverse_bid else bid.was_sent
+
+        localkeyhalf = ci_follower.decodeKey(
+            getChainBSplitKey(self, bid, xmr_swap, offer)
+        )
+        if was_sent:
             kbsl = decoded_key_half
-            kbsf = self.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, KeyTypes.KBSF, for_ed25519)
+            kbsf = localkeyhalf
         else:
-            kbsl = self.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, KeyTypes.KBSL, for_ed25519)
+            kbsl = localkeyhalf
             kbsf = decoded_key_half
-        ensure(ci_to.verifyKey(kbsl), 'Invalid kbsl')
-        ensure(ci_to.verifyKey(kbsf), 'Invalid kbsf')
-        vkbs = ci_to.sumKeys(kbsl, kbsf)
 
-        if offer.coin_to == Coins.XMR:
-            address_to = self.getCachedMainWalletAddress(ci_to)
+        ensure(ci_follower.verifyKey(kbsl), "Invalid kbsl")
+        ensure(ci_follower.verifyKey(kbsf), "Invalid kbsf")
+        if kbsl == kbsf:
+            raise ValueError("Provided key matches local key")
+        vkbs = ci_follower.sumKeys(kbsl, kbsf)
+
+        ensure(ci_follower.verifyPubkey(xmr_swap.pkbs), "Invalid pkbs")  # Sanity check
+
+        # Ensure summed key matches the expected pubkey
+        summed_pkbs = ci_follower.getPubkey(vkbs)
+        if summed_pkbs != xmr_swap.pkbs:
+            err_msg: str = "Summed key does not match expected wallet spend pubkey"
+            self.log.error(
+                f"{err_msg}. Got: {summed_pkbs.hex()}, Expect: {xmr_swap.pkbs.hex()}"
+            )
+            raise ValueError(err_msg)
+
+        coin_to: int = ci_follower.interface_type()
+        base_coin_to: int = ci_follower.coin_type()
+        if coin_to in (Coins.XMR, Coins.WOW):
+            address_to = self.getCachedMainWalletAddress(ci_follower, use_cursor)
+        elif coin_to in (Coins.PART_BLIND, Coins.PART_ANON):
+            address_to = self.getCachedStealthAddressForCoin(base_coin_to, use_cursor)
         else:
-            address_to = self.getCachedStealthAddressForCoin(offer.coin_to)
-
+            address_to = self.getReceiveAddressFromPool(
+                base_coin_to, bid_id, TxTypes.XMR_SWAP_B_LOCK_SPEND, use_cursor
+            )
         amount = bid.amount_to
         lock_tx_vout = bid.getLockTXBVout()
-        txid = ci_to.spendBLockTx(xmr_swap.b_lock_tx_id, address_to, xmr_swap.vkbv, vkbs, amount, xmr_offer.b_fee_rate, bid.chain_b_height_start, spend_actual_balance=True, lock_tx_vout=lock_tx_vout)
-        self.log.debug('Submitted lock B spend txn %s to %s chain for bid %s', txid.hex(), ci_to.coin_name(), bid_id.hex())
-        self.logBidEvent(bid.bid_id, EventLogTypes.LOCK_TX_B_SPEND_TX_PUBLISHED, txid.hex(), session)
-        session.commit()
+        txid = ci_follower.spendBLockTx(
+            xmr_swap.b_lock_tx_id,
+            address_to,
+            xmr_swap.vkbv,
+            vkbs,
+            amount,
+            xmr_offer.b_fee_rate,
+            bid.chain_b_height_start,
+            spend_actual_balance=True,
+            lock_tx_vout=lock_tx_vout,
+        )
+        self.log.debug(
+            f"Submitted lock B spend txn {self.log.id(txid)} to {ci_follower.coin_name()} chain for bid {self.log.id(bid_id)}."
+        )
+        self.logBidEvent(
+            bid.bid_id,
+            EventLogTypes.LOCK_TX_B_SPEND_TX_PUBLISHED,
+            txid.hex(),
+            use_cursor,
+        )
+        self.commitDB()
 
         return txid
+    except Exception as e:
+        self.log.error(traceback.format_exc())
+        raise (e)
     finally:
-        self.closeSession(session, commit=False)
+        if cursor is None:
+            self.closeDB(use_cursor, commit=False)
 
 
 def getChainBSplitKey(swap_client, bid, xmr_swap, offer):
     reverse_bid: bool = offer.bid_reversed
+    ci_leader = swap_client.ci(offer.coin_to if reverse_bid else offer.coin_from)
     ci_follower = swap_client.ci(offer.coin_from if reverse_bid else offer.coin_to)
 
-    key_type = KeyTypes.KBSF if bid.was_sent else KeyTypes.KBSL
-    return ci_follower.encodeKey(swap_client.getPathKey(offer.coin_from, offer.coin_to, bid.created_at, xmr_swap.contract_count, key_type, True if ci_follower.coin_type() == Coins.XMR else False))
+    for_ed25519: bool = True if ci_follower.curve_type() == Curves.ed25519 else False
+    was_sent: bool = bid.was_received if reverse_bid else bid.was_sent
+
+    key_type = KeyTypes.KBSF if was_sent else KeyTypes.KBSL
+
+    return ci_follower.encodeKey(
+        swap_client.getPathKey(
+            ci_leader.interface_type(),
+            ci_follower.interface_type(),
+            bid.created_at,
+            xmr_swap.contract_count,
+            key_type,
+            for_ed25519,
+        )
+    )
 
 
 def getChainBRemoteSplitKey(swap_client, bid, xmr_swap, offer):
@@ -102,13 +167,21 @@ def getChainBRemoteSplitKey(swap_client, bid, xmr_swap, offer):
 
     if bid.was_sent:
         if xmr_swap.a_lock_refund_spend_tx:
-            af_lock_refund_spend_tx_sig = ci_leader.extractFollowerSig(xmr_swap.a_lock_refund_spend_tx)
-            kbsl = ci_leader.recoverEncKey(xmr_swap.af_lock_refund_spend_tx_esig, af_lock_refund_spend_tx_sig, xmr_swap.pkasl)
+            af_lock_refund_spend_tx_sig = ci_leader.extractFollowerSig(
+                xmr_swap.a_lock_refund_spend_tx
+            )
+            kbsl = ci_leader.recoverEncKey(
+                xmr_swap.af_lock_refund_spend_tx_esig,
+                af_lock_refund_spend_tx_sig,
+                xmr_swap.pkasl,
+            )
             return ci_follower.encodeKey(kbsl)
     else:
         if xmr_swap.a_lock_spend_tx:
             al_lock_spend_tx_sig = ci_leader.extractLeaderSig(xmr_swap.a_lock_spend_tx)
-            kbsf = ci_leader.recoverEncKey(xmr_swap.al_lock_spend_tx_esig, al_lock_spend_tx_sig, xmr_swap.pkasf)
+            kbsf = ci_leader.recoverEncKey(
+                xmr_swap.al_lock_spend_tx_esig, al_lock_spend_tx_sig, xmr_swap.pkasf
+            )
             return ci_follower.encodeKey(kbsf)
     return None
 
@@ -116,32 +189,42 @@ def getChainBRemoteSplitKey(swap_client, bid, xmr_swap, offer):
 def setDLEAG(xmr_swap, ci_to, kbsf: bytes) -> None:
     if ci_to.curve_type() == Curves.ed25519:
         xmr_swap.kbsf_dleag = ci_to.proveDLEAG(kbsf)
-        xmr_swap.pkasf = xmr_swap.kbsf_dleag[0: 33]
+        xmr_swap.pkasf = xmr_swap.kbsf_dleag[0:33]
     elif ci_to.curve_type() == Curves.secp256k1:
         for i in range(10):
-            xmr_swap.kbsf_dleag = ci_to.signRecoverable(kbsf, 'proof kbsf owned for swap')
-            pk_recovered: bytes = ci_to.verifySigAndRecover(xmr_swap.kbsf_dleag, 'proof kbsf owned for swap')
+            xmr_swap.kbsf_dleag = ci_to.signRecoverable(
+                kbsf, "proof kbsf owned for swap"
+            )
+            pk_recovered: bytes = ci_to.verifySigAndRecover(
+                xmr_swap.kbsf_dleag, "proof kbsf owned for swap"
+            )
             if pk_recovered == xmr_swap.pkbsf:
                 break
             # self.log.debug('kbsl recovered pubkey mismatch, retrying.')
-        assert (pk_recovered == xmr_swap.pkbsf)
+        assert pk_recovered == xmr_swap.pkbsf
         xmr_swap.pkasf = xmr_swap.pkbsf
     else:
-        raise ValueError('Unknown curve')
+        raise ValueError("Unknown curve")
 
 
 class XmrSwapInterface(ProtocolInterface):
     swap_type = SwapTypes.XMR_SWAP
 
-    def genScriptLockTxScript(self, ci, Kal: bytes, Kaf: bytes) -> CScript:
-        Kal_enc = Kal if len(Kal) == 33 else ci.encodePubkey(Kal)
-        Kaf_enc = Kaf if len(Kaf) == 33 else ci.encodePubkey(Kaf)
+    def genScriptLockTxScript(self, ci, Kal: bytes, Kaf: bytes, **kwargs) -> CScript:
+        # fallthrough to ci if genScriptLockTxScript is implemented there
+        if hasattr(ci, "genScriptLockTxScript") and callable(ci.genScriptLockTxScript):
+            return ci.genScriptLockTxScript(ci, Kal, Kaf, **kwargs)
 
-        return CScript([2, Kal_enc, Kaf_enc, 2, CScriptOp(OP_CHECKMULTISIG)])
+        assert len(Kal) == 33
+        assert len(Kaf) == 33
+
+        return CScript([2, Kal, Kaf, 2, CScriptOp(OP_CHECKMULTISIG)])
 
     def getFundedInitiateTxTemplate(self, ci, amount: int, sub_fee: bool) -> bytes:
         addr_to = self.getMockAddrTo(ci)
-        funded_tx = ci.createRawFundedTransaction(addr_to, amount, sub_fee, lock_unspents=False)
+        funded_tx = ci.createRawFundedTransaction(
+            addr_to, amount, sub_fee, lock_unspents=False
+        )
 
         return bytes.fromhex(funded_tx)
 
@@ -157,9 +240,9 @@ class XmrSwapInterface(ProtocolInterface):
                 found += 1
 
         if found < 1:
-            raise ValueError('Mocked output not found')
+            raise ValueError("Mocked output not found")
         if found > 1:
-            raise ValueError('Too many mocked outputs found')
+            raise ValueError("Too many mocked outputs found")
         ctx.nLockTime = 0
 
         return ctx.serialize()

basicswap/rpc.py

@@ -1,15 +1,15 @@
 # -*- coding: utf-8 -*-
 
 # Copyright (c) 2020-2024 tecnovert
+# Copyright (c) 2025 The Basicswap developers
 # Distributed under the MIT software license, see the accompanying
 # file LICENSE or http://www.opensource.org/licenses/mit-license.php.
 
-import os
 import json
-import shlex
-import urllib
+import logging
 import traceback
-import subprocess
+import urllib
+import http.client
 from xmlrpc.client import (
     Fault,
     Transport,
@@ -17,32 +17,90 @@ from xmlrpc.client import (
 )
 from .util import jsonDecimal
 
+_use_rpc_pooling = False
+_rpc_pool_settings = {}
 
-class Jsonrpc():
+
+def enable_rpc_pooling(settings):
+    global _use_rpc_pooling, _rpc_pool_settings
+    _use_rpc_pooling = settings.get("enabled", False)
+    _rpc_pool_settings = settings
+
+
+class TimeoutTransport(Transport):
+    def __init__(self, timeout=10, *args, **kwargs):
+        self.timeout = timeout
+        super().__init__(*args, **kwargs)
+
+    def make_connection(self, host):
+        conn = http.client.HTTPConnection(host, timeout=self.timeout)
+        return conn
+
+
+class TimeoutSafeTransport(SafeTransport):
+    def __init__(self, timeout=10, *args, **kwargs):
+        self.timeout = timeout
+        super().__init__(*args, **kwargs)
+
+    def make_connection(self, host):
+        conn = http.client.HTTPSConnection(host, timeout=self.timeout)
+        return conn
+
+
+class Jsonrpc:
     # __getattr__ complicates extending ServerProxy
-    def __init__(self, uri, transport=None, encoding=None, verbose=False,
-                 allow_none=False, use_datetime=False, use_builtin_types=False,
-                 *, context=None):
+    def __init__(
+        self,
+        uri,
+        transport=None,
+        encoding=None,
+        verbose=False,
+        allow_none=False,
+        use_datetime=False,
+        use_builtin_types=False,
+        *,
+        context=None,
+        timeout=10,
+    ):
         # establish a "logical" server connection
 
-        # get the url
         parsed = urllib.parse.urlparse(uri)
-        if parsed.scheme not in ('http', 'https'):
-            raise OSError('unsupported XML-RPC protocol')
+        if parsed.scheme not in ("http", "https"):
+            raise OSError("unsupported XML-RPC protocol")
+
+        self.__auth = None
+        if "@" in parsed.netloc:
+            auth_part, host_port = parsed.netloc.rsplit("@", 1)
+            self.__host = host_port
+            if ":" in auth_part:
+                import base64
+
+                auth_bytes = auth_part.encode("utf-8")
+                auth_b64 = base64.b64encode(auth_bytes).decode("ascii")
+                self.__auth = f"Basic {auth_b64}"
+        else:
             self.__host = parsed.netloc
+
+        if not self.__host:
+            raise ValueError(f"Invalid or empty hostname in URI: {uri}")
         self.__handler = parsed.path
         if not self.__handler:
-            self.__handler = '/RPC2'
+            self.__handler = "/RPC2"
 
         if transport is None:
-            handler = SafeTransport if parsed.scheme == 'https' else Transport
+            handler = (
+                TimeoutSafeTransport if parsed.scheme == "https" else TimeoutTransport
+            )
             extra_kwargs = {}
-            transport = handler(use_datetime=use_datetime,
+            transport = handler(
+                timeout=timeout,
+                use_datetime=use_datetime,
                 use_builtin_types=use_builtin_types,
-                                **extra_kwargs)
+                **extra_kwargs,
+            )
         self.__transport = transport
 
-        self.__encoding = encoding or 'utf-8'
+        self.__encoding = encoding or "utf-8"
         self.__verbose = verbose
         self.__allow_none = allow_none
 
@@ -53,104 +111,157 @@ class Jsonrpc():
             self.__transport.close()
 
     def json_request(self, method, params):
+        connection = None
         try:
             connection = self.__transport.make_connection(self.__host)
             headers = self.__transport._extra_headers[:]
 
-            request_body = {
-                'method': method,
-                'params': params,
-                'id': self.__request_id
-            }
+            request_body = {"method": method, "params": params, "id": self.__request_id}
+
+            connection.putrequest("POST", self.__handler)
+            headers.append(("Content-Type", "application/json"))
+            headers.append(("User-Agent", "jsonrpc"))
+
+            if self.__auth:
+                headers.append(("Authorization", self.__auth))
 
-            connection.putrequest('POST', self.__handler)
-            headers.append(('Content-Type', 'application/json'))
-            headers.append(('User-Agent', 'jsonrpc'))
             self.__transport.send_headers(connection, headers)
-            self.__transport.send_content(connection, json.dumps(request_body, default=jsonDecimal).encode('utf-8'))
+            self.__transport.send_content(
+                connection,
+                json.dumps(request_body, default=jsonDecimal).encode("utf-8"),
+            )
             self.__request_id += 1
 
             resp = connection.getresponse()
-            return resp.read()
+            result = resp.read()
+
+            connection.close()
+
+            return result
 
         except Fault:
             raise
         except Exception:
-            # All unexpected errors leave connection in
-            # a strange state, so we clear it.
             self.__transport.close()
             raise
-
-
-def callrpc(rpc_port, auth, method, params=[], wallet=None, host='127.0.0.1'):
+        finally:
+            if connection is not None:
                 try:
-        url = 'http://{}@{}:{}/'.format(auth, host, rpc_port)
+                    connection.close()
+                except Exception:
+                    pass
+
+
+def callrpc(rpc_port, auth, method, params=[], wallet=None, host="127.0.0.1"):
+    if _use_rpc_pooling:
+        return callrpc_pooled(rpc_port, auth, method, params, wallet, host)
+
+    try:
+        url = "http://{}@{}:{}/".format(auth, host, rpc_port)
         if wallet is not None:
-            url += 'wallet/' + urllib.parse.quote(wallet)
+            url += "wallet/" + urllib.parse.quote(wallet)
         x = Jsonrpc(url)
 
         v = x.json_request(method, params)
         x.close()
-        r = json.loads(v.decode('utf-8'))
+        r = json.loads(v.decode("utf-8"))
     except Exception as ex:
-        traceback.print_exc()
-        raise ValueError('RPC server error ' + str(ex) + ', method: ' + method)
+        raise ValueError(f"RPC server error: {ex}, method: {method}")
 
-    if 'error' in r and r['error'] is not None:
-        raise ValueError('RPC error ' + str(r['error']))
+    if "error" in r and r["error"] is not None:
+        raise ValueError("RPC error " + str(r["error"]))
 
-    return r['result']
+    return r["result"]
 
 
-def openrpc(rpc_port, auth, wallet=None, host='127.0.0.1'):
-    try:
-        url = 'http://{}@{}:{}/'.format(auth, host, rpc_port)
+def callrpc_pooled(rpc_port, auth, method, params=[], wallet=None, host="127.0.0.1"):
+    from .rpc_pool import get_rpc_pool
+    import http.client
+    import socket
+
+    url = "http://{}@{}:{}/".format(auth, host, rpc_port)
     if wallet is not None:
-            url += 'wallet/' + urllib.parse.quote(wallet)
+        url += "wallet/" + urllib.parse.quote(wallet)
+
+    max_connections = _rpc_pool_settings.get("max_connections_per_daemon", 5)
+    pool = get_rpc_pool(url, max_connections)
+
+    max_retries = 2
+
+    for attempt in range(max_retries):
+        conn = pool.get_connection()
+
+        try:
+            v = conn.json_request(method, params)
+            r = json.loads(v.decode("utf-8"))
+
+            if "error" in r and r["error"] is not None:
+                pool.discard_connection(conn)
+                raise ValueError("RPC error " + str(r["error"]))
+
+            pool.return_connection(conn)
+            return r["result"]
+
+        except (
+            http.client.RemoteDisconnected,
+            http.client.IncompleteRead,
+            http.client.BadStatusLine,
+            ConnectionError,
+            ConnectionResetError,
+            ConnectionAbortedError,
+            BrokenPipeError,
+            TimeoutError,
+            socket.timeout,
+            socket.error,
+            OSError,
+        ) as ex:
+            pool.discard_connection(conn)
+            if attempt < max_retries - 1:
+                continue
+            logging.warning(
+                f"RPC server error after {max_retries} attempts: {ex}, method: {method}"
+            )
+            raise ValueError(f"RPC server error: {ex}, method: {method}")
+        except ValueError:
+            raise
+        except Exception as ex:
+            pool.discard_connection(conn)
+            logging.error(f"Unexpected RPC error: {ex}, method: {method}")
+            raise ValueError(f"RPC server error: {ex}, method: {method}")
+
+
+def openrpc(rpc_port, auth, wallet=None, host="127.0.0.1"):
+    try:
+        url = "http://{}@{}:{}/".format(auth, host, rpc_port)
+        if wallet is not None:
+            url += "wallet/" + urllib.parse.quote(wallet)
         return Jsonrpc(url)
     except Exception as ex:
         traceback.print_exc()
-        raise ValueError('RPC error ' + str(ex))
+        raise ValueError(f"RPC error: {ex}")
 
 
-def callrpc_cli(bindir, datadir, chain, cmd, cli_bin='particl-cli', wallet=None):
-    cli_bin = os.path.join(bindir, cli_bin)
-
-    args = [cli_bin, ]
-    if chain != 'mainnet':
-        args.append('-' + chain)
-    args.append('-datadir=' + datadir)
-    if wallet is not None:
-        args.append('-rpcwallet=' + wallet)
-    args += shlex.split(cmd)
-
-    p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-    out = p.communicate()
-
-    if len(out[1]) > 0:
-        raise ValueError('RPC error ' + str(out[1]))
-
-    r = out[0].decode('utf-8').strip()
-    try:
-        r = json.loads(r)
-    except Exception:
-        pass
-    return r
-
-
-def make_rpc_func(port, auth, wallet=None, host='127.0.0.1'):
+def make_rpc_func(port, auth, wallet=None, host="127.0.0.1"):
     port = port
     auth = auth
     wallet = wallet
     host = host
 
     def rpc_func(method, params=None, wallet_override=None):
-        nonlocal port, auth, wallet, host
-        return callrpc(port, auth, method, params, wallet if wallet_override is None else wallet_override, host)
+        return callrpc(
+            port,
+            auth,
+            method,
+            params,
+            wallet if wallet_override is None else wallet_override,
+            host,
+        )
+
     return rpc_func
 
 
 def escape_rpcauth(auth_str: str) -> str:
-    username, password = auth_str.split(':', 1)
-    password = urllib.parse.quote(password, safe='')
-    return f'{username}:{password}'
+    username, password = auth_str.split(":", 1)
+    username = urllib.parse.quote(username, safe="")
+    password = urllib.parse.quote(password, safe="")
+    return f"{username}:{password}"

basicswap/rpc_pool.py

@@ -0,0 +1,131 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2025 The Basicswap developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
+
+import queue
+import threading
+import time
+from basicswap.rpc import Jsonrpc
+
+
+class RPCConnectionPool:
+    def __init__(
+        self, url, max_connections=5, timeout=10, logger=None, max_idle_time=300
+    ):
+        self.url = url
+        self.max_connections = max_connections
+        self.timeout = timeout
+        self.logger = logger
+        self.max_idle_time = max_idle_time
+        self._pool = queue.Queue(maxsize=max_connections)
+        self._lock = threading.Lock()
+        self._created_connections = 0
+        self._connection_timestamps = {}
+
+    def get_connection(self):
+        try:
+            conn_data = self._pool.get(block=False)
+            conn, timestamp = (
+                conn_data if isinstance(conn_data, tuple) else (conn_data, time.time())
+            )
+
+            if time.time() - timestamp > self.max_idle_time:
+                if self.logger:
+                    self.logger.debug(
+                        f"RPC pool: discarding stale connection (idle for {time.time() - timestamp:.1f}s)"
+                    )
+                conn.close()
+                with self._lock:
+                    if self._created_connections > 0:
+                        self._created_connections -= 1
+                return self._create_new_connection()
+
+            return conn
+        except queue.Empty:
+            return self._create_new_connection()
+
+    def _create_new_connection(self):
+        with self._lock:
+            if self._created_connections < self.max_connections:
+                self._created_connections += 1
+                return Jsonrpc(self.url)
+
+        try:
+            conn_data = self._pool.get(block=True, timeout=self.timeout)
+            conn, timestamp = (
+                conn_data if isinstance(conn_data, tuple) else (conn_data, time.time())
+            )
+
+            if time.time() - timestamp > self.max_idle_time:
+                if self.logger:
+                    self.logger.debug(
+                        f"RPC pool: discarding stale connection (idle for {time.time() - timestamp:.1f}s)"
+                    )
+                conn.close()
+                with self._lock:
+                    if self._created_connections > 0:
+                        self._created_connections -= 1
+                return Jsonrpc(self.url)
+
+            return conn
+        except queue.Empty:
+            if self.logger:
+                self.logger.warning(
+                    f"RPC pool: timeout waiting for connection, creating temporary connection for {self.url}"
+                )
+            return Jsonrpc(self.url)
+
+    def return_connection(self, conn):
+        try:
+            self._pool.put((conn, time.time()), block=False)
+        except queue.Full:
+            conn.close()
+            with self._lock:
+                if self._created_connections > 0:
+                    self._created_connections -= 1
+
+    def discard_connection(self, conn):
+        conn.close()
+        with self._lock:
+            if self._created_connections > 0:
+                self._created_connections -= 1
+
+    def close_all(self):
+        while not self._pool.empty():
+            try:
+                conn_data = self._pool.get(block=False)
+                conn = conn_data[0] if isinstance(conn_data, tuple) else conn_data
+                conn.close()
+            except queue.Empty:
+                break
+        with self._lock:
+            self._created_connections = 0
+            self._connection_timestamps.clear()
+
+
+_rpc_pools = {}
+_pool_lock = threading.Lock()
+_pool_logger = None
+
+
+def set_pool_logger(logger):
+    global _pool_logger
+    _pool_logger = logger
+
+
+def get_rpc_pool(url, max_connections=5):
+    with _pool_lock:
+        if url not in _rpc_pools:
+            _rpc_pools[url] = RPCConnectionPool(
+                url, max_connections, logger=_pool_logger
+            )
+        return _rpc_pools[url]
+
+
+def close_all_pools():
+    with _pool_lock:
+        for pool in _rpc_pools.values():
+            pool.close_all()
+        _rpc_pools.clear()

basicswap/rpc_xmr.py

@@ -33,31 +33,50 @@ class SocksTransport(Transport):
             return self._connection[1]
         # create a HTTP connection object from a host descriptor
         chost, self._extra_headers, x509 = self.get_host_info(host)
-        self._connection = host, SocksiPyConnection(self.proxy_type, self.proxy_host, self.proxy_port, self.proxy_rdns, self.proxy_username, self.proxy_password, chost)
+        self._connection = host, SocksiPyConnection(
+            self.proxy_type,
+            self.proxy_host,
+            self.proxy_port,
+            self.proxy_rdns,
+            self.proxy_username,
+            self.proxy_password,
+            chost,
+        )
         return self._connection[1]
 
 
-class JsonrpcDigest():
+class JsonrpcDigest:
     # __getattr__ complicates extending ServerProxy
-    def __init__(self, uri, transport=None, encoding=None, verbose=False,
-                 allow_none=False, use_datetime=False, use_builtin_types=False,
-                 *, context=None):
+    def __init__(
+        self,
+        uri,
+        transport=None,
+        encoding=None,
+        verbose=False,
+        allow_none=False,
+        use_datetime=False,
+        use_builtin_types=False,
+        *,
+        context=None,
+    ):
 
         parsed = urllib.parse.urlparse(uri)
-        if parsed.scheme not in ('http', 'https'):
-            raise OSError('unsupported XML-RPC protocol')
+        if parsed.scheme not in ("http", "https"):
+            raise OSError("unsupported XML-RPC protocol")
         self.__host = parsed.netloc
         self.__handler = parsed.path
 
         if transport is None:
-            handler = SafeTransport if parsed.scheme == 'https' else Transport
+            handler = SafeTransport if parsed.scheme == "https" else Transport
             extra_kwargs = {}
-            transport = handler(use_datetime=use_datetime,
+            transport = handler(
+                use_datetime=use_datetime,
                 use_builtin_types=use_builtin_types,
-                                **extra_kwargs)
+                **extra_kwargs,
+            )
         self.__transport = transport
 
-        self.__encoding = encoding or 'utf-8'
+        self.__encoding = encoding or "utf-8"
         self.__verbose = verbose
         self.__allow_none = allow_none
 
@@ -77,11 +96,18 @@ class JsonrpcDigest():
                 connection.timeout = timeout
             headers = self.__transport._extra_headers[:]
 
-            connection.putrequest('POST', self.__handler)
-            headers.append(('Content-Type', 'application/json'))
-            headers.append(('User-Agent', 'jsonrpc'))
+            connection.putrequest("POST", self.__handler)
+            headers.append(("Content-Type", "application/json"))
+            headers.append(("User-Agent", "jsonrpc"))
             self.__transport.send_headers(connection, headers)
-            self.__transport.send_content(connection, '' if params is None else json.dumps(params, default=jsonDecimal).encode('utf-8'))
+            self.__transport.send_content(
+                connection,
+                (
+                    ""
+                    if params is None
+                    else json.dumps(params, default=jsonDecimal).encode("utf-8")
+                ),
+            )
             self.__request_id += 1
 
             resp = connection.getresponse()
@@ -93,7 +119,7 @@ class JsonrpcDigest():
             self.__transport.close()
             raise
 
-    def json_request(self, request_body, username='', password='', timeout=None):
+    def json_request(self, request_body, username="", password="", timeout=None):
         try:
             connection = self.__transport.make_connection(self.__host)
             if timeout:
@@ -101,65 +127,82 @@ class JsonrpcDigest():
 
             headers = self.__transport._extra_headers[:]
 
-            connection.putrequest('POST', self.__handler)
-            headers.append(('Content-Type', 'application/json'))
-            headers.append(('Connection', 'keep-alive'))
+            connection.putrequest("POST", self.__handler)
+            headers.append(("Content-Type", "application/json"))
+            headers.append(("Connection", "keep-alive"))
             self.__transport.send_headers(connection, headers)
-            self.__transport.send_content(connection, json.dumps(request_body, default=jsonDecimal).encode('utf-8') if request_body else '')
+            self.__transport.send_content(
+                connection,
+                (
+                    json.dumps(request_body, default=jsonDecimal).encode("utf-8")
+                    if request_body
+                    else ""
+                ),
+            )
             resp = connection.getresponse()
 
             if resp.status == 401:
                 resp_headers = resp.getheaders()
-                v = resp.read()
+                _ = resp.read()
 
-                algorithm = ''
-                realm = ''
-                nonce = ''
+                realm = ""
+                nonce = ""
                 for h in resp_headers:
-                    if h[0] != 'WWW-authenticate':
+                    if h[0] != "WWW-authenticate":
                         continue
-                    fields = h[1].split(',')
+                    fields = h[1].split(",")
                     for f in fields:
-                        key, value = f.split('=', 1)
-                        if key == 'algorithm' and value != 'MD5':
+                        key, value = f.split("=", 1)
+                        if key == "algorithm" and value != "MD5":
                             break
-                        if key == 'realm':
+                        if key == "realm":
                             realm = value.strip('"')
-                        if key == 'nonce':
+                        if key == "nonce":
                             nonce = value.strip('"')
-                    if realm != '' and nonce != '':
+                    if realm != "" and nonce != "":
                         break
 
-                if realm == '' or nonce == '':
-                    raise ValueError('Authenticate header not found.')
+                if realm == "" or nonce == "":
+                    raise ValueError("Authenticate header not found.")
 
                 path = self.__handler
-                HA1 = hashlib.md5(f'{username}:{realm}:{password}'.encode('utf-8')).hexdigest()
+                HA1 = hashlib.md5(
+                    f"{username}:{realm}:{password}".encode("utf-8")
+                ).hexdigest()
 
-                http_method = 'POST'
-                HA2 = hashlib.md5(f'{http_method}:{path}'.encode('utf-8')).hexdigest()
+                http_method = "POST"
+                HA2 = hashlib.md5(f"{http_method}:{path}".encode("utf-8")).hexdigest()
 
-                ncvalue = '{:08x}'.format(1)
-                s = ncvalue.encode('utf-8')
-                s += nonce.encode('utf-8')
-                s += time.ctime().encode('utf-8')
+                ncvalue = "{:08x}".format(1)
+                s = ncvalue.encode("utf-8")
+                s += nonce.encode("utf-8")
+                s += time.ctime().encode("utf-8")
                 s += os.urandom(8)
-                cnonce = (hashlib.sha1(s).hexdigest()[:16])
+                cnonce = hashlib.sha1(s).hexdigest()[:16]
 
                 # MD5-SESS
-                HA1 = hashlib.md5(f'{HA1}:{nonce}:{cnonce}'.encode('utf-8')).hexdigest()
+                HA1 = hashlib.md5(f"{HA1}:{nonce}:{cnonce}".encode("utf-8")).hexdigest()
 
-                respdig = hashlib.md5(f'{HA1}:{nonce}:{ncvalue}:{cnonce}:auth:{HA2}'.encode('utf-8')).hexdigest()
+                respdig = hashlib.md5(
+                    f"{HA1}:{nonce}:{ncvalue}:{cnonce}:auth:{HA2}".encode("utf-8")
+                ).hexdigest()
 
                 header_value = f'Digest username="{username}", realm="{realm}", nonce="{nonce}", uri="{path}", response="{respdig}", algorithm="MD5-sess", qop="auth", nc={ncvalue}, cnonce="{cnonce}"'
                 headers = self.__transport._extra_headers[:]
-                headers.append(('Authorization', header_value))
+                headers.append(("Authorization", header_value))
 
-                connection.putrequest('POST', self.__handler)
-                headers.append(('Content-Type', 'application/json'))
-                headers.append(('Connection', 'keep-alive'))
+                connection.putrequest("POST", self.__handler)
+                headers.append(("Content-Type", "application/json"))
+                headers.append(("Connection", "keep-alive"))
                 self.__transport.send_headers(connection, headers)
-                self.__transport.send_content(connection, json.dumps(request_body, default=jsonDecimal).encode('utf-8') if request_body else '')
+                self.__transport.send_content(
+                    connection,
+                    (
+                        json.dumps(request_body, default=jsonDecimal).encode("utf-8")
+                        if request_body
+                        else ""
+                    ),
+                )
                 resp = connection.getresponse()
 
             self.__request_id += 1
@@ -172,57 +215,88 @@ class JsonrpcDigest():
             raise
 
 
-def callrpc_xmr(rpc_port, method, params=[], rpc_host='127.0.0.1', path='json_rpc', auth=None, timeout=120, transport=None, tag=''):
+def callrpc_xmr(
+    rpc_port,
+    method,
+    params=[],
+    rpc_host="127.0.0.1",
+    path="json_rpc",
+    auth=None,
+    timeout=120,
+    transport=None,
+    tag="",
+):
     # auth is a tuple: (username, password)
     try:
-        if rpc_host.count('://') > 0:
-            url = '{}:{}/{}'.format(rpc_host, rpc_port, path)
+        if rpc_host.count("://") > 0:
+            url = "{}:{}/{}".format(rpc_host, rpc_port, path)
         else:
-            url = 'http://{}:{}/{}'.format(rpc_host, rpc_port, path)
+            url = "http://{}:{}/{}".format(rpc_host, rpc_port, path)
 
         x = JsonrpcDigest(url, transport=transport)
         request_body = {
-            'method': method,
-            'params': params,
-            'jsonrpc': '2.0',
-            'id': x.request_id()
+            "method": method,
+            "params": params,
+            "jsonrpc": "2.0",
+            "id": x.request_id(),
         }
         if auth:
-            v = x.json_request(request_body, username=auth[0], password=auth[1], timeout=timeout)
+            v = x.json_request(
+                request_body, username=auth[0], password=auth[1], timeout=timeout
+            )
         else:
             v = x.json_request(request_body, timeout=timeout)
         x.close()
-        r = json.loads(v.decode('utf-8'))
+        r = json.loads(v.decode("utf-8"))
     except Exception as ex:
-        raise ValueError('{}RPC Server Error: {}'.format(tag, str(ex)))
+        raise ValueError("{}RPC Server Error: {}".format(tag, str(ex)))
 
-    if 'error' in r and r['error'] is not None:
-        raise ValueError(tag + 'RPC error ' + str(r['error']))
+    if "error" in r and r["error"] is not None:
+        raise ValueError(tag + "RPC error " + str(r["error"]))
 
-    return r['result']
+    return r["result"]
 
 
-def callrpc_xmr2(rpc_port: int, method: str, params=None, auth=None, rpc_host='127.0.0.1', timeout=120, transport=None, tag=''):
+def callrpc_xmr2(
+    rpc_port: int,
+    method: str,
+    params=None,
+    auth=None,
+    rpc_host="127.0.0.1",
+    timeout=120,
+    transport=None,
+    tag="",
+):
     try:
-        if rpc_host.count('://') > 0:
-            url = '{}:{}/{}'.format(rpc_host, rpc_port, method)
+        if rpc_host.count("://") > 0:
+            url = "{}:{}/{}".format(rpc_host, rpc_port, method)
         else:
-            url = 'http://{}:{}/{}'.format(rpc_host, rpc_port, method)
+            url = "http://{}:{}/{}".format(rpc_host, rpc_port, method)
 
         x = JsonrpcDigest(url, transport=transport)
         if auth:
-            v = x.json_request(params, username=auth[0], password=auth[1], timeout=timeout)
+            v = x.json_request(
+                params, username=auth[0], password=auth[1], timeout=timeout
+            )
         else:
             v = x.json_request(params, timeout=timeout)
         x.close()
-        r = json.loads(v.decode('utf-8'))
+        r = json.loads(v.decode("utf-8"))
     except Exception as ex:
-        raise ValueError('{}RPC Server Error: {}'.format(tag, str(ex)))
+        raise ValueError("{}RPC Server Error: {}".format(tag, str(ex)))
 
     return r
 
 
-def make_xmr_rpc2_func(port, auth, host='127.0.0.1', proxy_host=None, proxy_port=None, default_timeout=120, tag=''):
+def make_xmr_rpc2_func(
+    port,
+    auth,
+    host="127.0.0.1",
+    proxy_host=None,
+    proxy_port=None,
+    default_timeout=120,
+    tag="",
+):
     port = port
     auth = auth
     host = host
@@ -235,12 +309,29 @@ def make_xmr_rpc2_func(port, auth, host='127.0.0.1', proxy_host=None, proxy_port
         transport.set_proxy(proxy_host, proxy_port)
 
     def rpc_func(method, params=None, wallet=None, timeout=default_timeout):
-        nonlocal port, auth, host, transport, tag
-        return callrpc_xmr2(port, method, params, auth=auth, rpc_host=host, timeout=timeout, transport=transport, tag=tag)
+        return callrpc_xmr2(
+            port,
+            method,
+            params,
+            auth=auth,
+            rpc_host=host,
+            timeout=timeout,
+            transport=transport,
+            tag=tag,
+        )
+
     return rpc_func
 
 
-def make_xmr_rpc_func(port, auth, host='127.0.0.1', proxy_host=None, proxy_port=None, default_timeout=120, tag=''):
+def make_xmr_rpc_func(
+    port,
+    auth,
+    host="127.0.0.1",
+    proxy_host=None,
+    proxy_port=None,
+    default_timeout=120,
+    tag="",
+):
     port = port
     auth = auth
     host = host
@@ -253,6 +344,15 @@ def make_xmr_rpc_func(port, auth, host='127.0.0.1', proxy_host=None, proxy_port=
         transport.set_proxy(proxy_host, proxy_port)
 
     def rpc_func(method, params=None, wallet=None, timeout=default_timeout):
-        nonlocal port, auth, host, transport, tag
-        return callrpc_xmr(port, method, params, rpc_host=host, auth=auth, timeout=timeout, transport=transport, tag=tag)
+        return callrpc_xmr(
+            port,
+            method,
+            params,
+            rpc_host=host,
+            auth=auth,
+            timeout=timeout,
+            transport=transport,
+            tag=tag,
+        )
+
     return rpc_func

basicswap/script.py

@@ -8,23 +8,23 @@ from enum import IntEnum
 
 
 class OpCodes(IntEnum):
-    OP_0 = 0x00,
-    OP_PUSHDATA1 = 0x4c,
-    OP_1 = 0x51,
-    OP_16 = 0x60,
-    OP_IF = 0x63,
-    OP_ELSE = 0x67,
-    OP_ENDIF = 0x68,
-    OP_RETURN = 0x6a,
-    OP_DROP = 0x75,
-    OP_DUP = 0x76,
-    OP_SIZE = 0x82,
-    OP_EQUAL = 0x87,
-    OP_EQUALVERIFY = 0x88,
-    OP_SHA256 = 0xa8,
-    OP_HASH160 = 0xa9,
-    OP_CHECKSIG = 0xac,
-    OP_CHECKLOCKTIMEVERIFY = 0xb1,
-    OP_CHECKSEQUENCEVERIFY = 0xb2,
+    OP_0 = (0x00,)
+    OP_PUSHDATA1 = (0x4C,)
+    OP_1 = (0x51,)
+    OP_16 = (0x60,)
+    OP_IF = (0x63,)
+    OP_ELSE = (0x67,)
+    OP_ENDIF = (0x68,)
+    OP_RETURN = (0x6A,)
+    OP_DROP = (0x75,)
+    OP_DUP = (0x76,)
+    OP_SIZE = (0x82,)
+    OP_EQUAL = (0x87,)
+    OP_EQUALVERIFY = (0x88,)
+    OP_SHA256 = (0xA8,)
+    OP_HASH160 = (0xA9,)
+    OP_CHECKSIG = (0xAC,)
+    OP_CHECKLOCKTIMEVERIFY = (0xB1,)
+    OP_CHECKSEQUENCEVERIFY = (0xB2,)
 
-    OP_SHA256_DECRED = 0xc0,
+    OP_SHA256_DECRED = (0xC0,)

basicswap/static/css/style.css

@@ -14,6 +14,62 @@
     z-index: 9999;
 }
 
+/* Toast Notification Animations */
+.toast-slide-in {
+    animation: slideInRight 0.3s ease-out;
+}
+
+.toast-slide-out {
+    animation: slideOutRight 0.3s ease-in forwards;
+}
+
+@keyframes slideInRight {
+    from {
+        transform: translateX(100%);
+        opacity: 0;
+    }
+    to {
+        transform: translateX(0);
+        opacity: 1;
+    }
+}
+
+@keyframes slideOutRight {
+    from {
+        transform: translateX(0);
+        opacity: 1;
+    }
+    to {
+        transform: translateX(100%);
+        opacity: 0;
+    }
+}
+
+/* Toast Container Styles */
+#ul_updates {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+    max-width: 400px;
+}
+
+#ul_updates li {
+    margin-bottom: 0.5rem;
+}
+
+/* Toast Hover Effects */
+#ul_updates .bg-white:hover {
+    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+    transform: translateY(-1px);
+    transition: all 0.2s ease-in-out;
+}
+
+.dark #ul_updates .dark\:bg-gray-800:hover {
+    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
+    transform: translateY(-1px);
+    transition: all 0.2s ease-in-out;
+}
+
 /* Table Styles */
 .padded_row td {
     padding-top: 1.5em;
@@ -108,7 +164,7 @@
 }
 
 /* Form Element Styles */
-@media screen and (-webkit-min-device-pixel-ratio:0) {
+@media screen and (-webkit-min-device-pixel-ratio: 0) {
     select:disabled,
     input:disabled,
     textarea:disabled {
@@ -146,8 +202,12 @@
 }
 
 @keyframes spin {
-  0% { transform: rotate(0deg); }
-  100% { transform: rotate(360deg); }
+    0% { 
+        transform: rotate(0deg); 
+    }
+    100% { 
+        transform: rotate(360deg); 
+    }
 }
 
 /* Hover Container Styles */
@@ -158,7 +218,8 @@
     border-color: #3b82f6;
 }
 
-#coin_to_button, #coin_from_button {
+#coin_to_button, 
+#coin_from_button {
     background-repeat: no-repeat;
     background-position: center;
     background-size: 20px 20px;
@@ -279,8 +340,7 @@ select.disabled-select-enabled {
     opacity: 0.5;
 }
 
-
-/* Loading line animation */
+/* Loading Line Animation */
 .loading-line {
     width: 100%;
     height: 2px;
@@ -288,6 +348,7 @@ select.disabled-select-enabled {
     overflow: hidden;
     position: relative;
 }
+
 .loading-line::before {
     content: '';
     display: block;
@@ -296,6 +357,7 @@ select.disabled-select-enabled {
     background: linear-gradient(to right, transparent, #007bff, transparent);
     animation: loading 1.5s infinite;
 }
+
 @keyframes loading {
     0% {
         transform: translateX(-100%);
@@ -304,56 +366,202 @@ select.disabled-select-enabled {
         transform: translateX(100%);
     }
 }
-/* Hide the loading line once data is loaded */
+
 .usd-value:not(.loading) .loading-line,
 .profit-loss:not(.loading) .loading-line {
     display: none;
 }
 
-  .resolution-button {
+/* Resolution Button Styles */
+.resolution-button {
     background: none;
     border: none;
-    color: #4B5563; /* gray-600 */
-    font-size: 0.875rem; /* text-sm */
-    font-weight: 500; /* font-medium */
+    color: #4B5563;
+    font-size: 0.875rem;
+    font-weight: 500;
     padding: 0.25rem 0.5rem;
     border-radius: 0.25rem;
     transition: all 0.2s;
     outline: 2px solid transparent;
     outline-offset: 2px;
-  }
+}
 
-  .resolution-button:hover {
-    color: #1F2937; /* gray-800 */
-  }
+.resolution-button:hover {
+    color: #1F2937;
+}
 
-  .resolution-button:focus {
-    outline: 2px solid #3B82F6; /* blue-500 */
-  }
+.resolution-button:focus {
+    outline: 2px solid #3B82F6;
+}
 
-  .resolution-button.active {
-    color: #3B82F6; /* blue-500 */
-    outline: 2px solid #3B82F6; /* blue-500 */
-  }
+.resolution-button.active {
+    color: #3B82F6;
+    outline: 2px solid #3B82F6;
+}
 
-  .dark .resolution-button {
-    color: #9CA3AF; /* gray-400 */
-  }
+.dark .resolution-button {
+    color: #9CA3AF;
+}
 
-  .dark .resolution-button:hover {
-    color: #F3F4F6; /* gray-100 */
-  }
+.dark .resolution-button:hover {
+    color: #F3F4F6;
+}
 
-  .dark .resolution-button.active {
-    color: #60A5FA; /* blue-400 */
-    outline-color: #60A5FA; /* blue-400 */
+.dark .resolution-button.active {
+    color: #60A5FA;
+    outline-color: #60A5FA;
     color: #fff;
+}
+
+/* Toggle Button Styles */
+#toggle-volume.active {
+    @apply bg-green-500 hover:bg-green-600 focus:ring-green-300;
+}
+
+#toggle-auto-refresh[data-enabled="true"] {
+    @apply bg-green-500 hover:bg-green-600 focus:ring-green-300;
+}
+
+/* Multi-select dropdown styles */
+.multi-select-dropdown::-webkit-scrollbar {
+    width: 12px;
+}
+
+.multi-select-dropdown::-webkit-scrollbar-track {
+    background: #f1f1f1;
+    border-radius: 6px;
+}
+
+.multi-select-dropdown::-webkit-scrollbar-thumb {
+    background: #888;
+    border-radius: 6px;
+}
+
+.multi-select-dropdown::-webkit-scrollbar-thumb:hover {
+    background: #555;
+}
+
+.dark .multi-select-dropdown::-webkit-scrollbar-track {
+    background: #374151;
+}
+
+.dark .multi-select-dropdown::-webkit-scrollbar-thumb {
+    background: #6b7280;
+}
+
+.dark .multi-select-dropdown::-webkit-scrollbar-thumb:hover {
+    background: #9ca3af;
+}
+
+.multi-select-dropdown input[type="checkbox"]:focus {
+    outline: none !important;
+    box-shadow: none !important;
+    border-color: inherit !important;
+}
+
+.multi-select-dropdown label:focus-within {
+    outline: none !important;
+    box-shadow: none !important;
+}
+
+#coin_to_button:focus,
+#coin_from_button:focus {
+    outline: none !important;
+    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3) !important;
+    border-color: #3b82f6 !important;
+}
+
+  .coin-badge {
+    background: #3b82f6;
+    color: white;
+    padding: 2px 8px;
+    border-radius: 12px;
+    font-size: 12px;
+    display: inline-flex;
+    align-items: center;
+    gap: 4px;
+    margin: 2px;
+  }
+  .coin-badge .remove {
+    cursor: pointer;
+    font-weight: bold;
+    opacity: 0.7;
+    margin-left: 4px;
+  }
+  .coin-badge .remove:hover {
+    opacity: 1;
+  }
+  .multi-select-dropdown {
+    max-height: 300px;
+    overflow-y: auto;
+    z-index: 9999 !important;
+    position: fixed !important;
+    min-width: 200px;
+    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
+  }
+  .multi-select-dropdown::-webkit-scrollbar {
+    width: 6px;
+  }
+  .multi-select-dropdown::-webkit-scrollbar-track {
+    background: #f1f1f1;
+  }
+  .multi-select-dropdown::-webkit-scrollbar-thumb {
+    background: #888;
+    border-radius: 3px;
+  }
+  .multi-select-dropdown::-webkit-scrollbar-thumb:hover {
+    background: #555;
+  }
+  .dark .multi-select-dropdown::-webkit-scrollbar-track {
+    background: #374151;
+  }
+  .dark .multi-select-dropdown::-webkit-scrollbar-thumb {
+    background: #6b7280;
+  }
+  .dropdown-container {
+    position: relative;
+    z-index: 1;
+  }
+  .dropdown-container.open {
+    z-index: 9999;
+  }
+  .filter-button-text {
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
   }
 
-    #toggle-volume.active {
-    @apply bg-green-500 hover:bg-green-600 focus:ring-green-300;
+  .multi-select-dropdown input[type="checkbox"] {
+    outline: none !important;
+    box-shadow: none !important;
+    border: 1px solid #d1d5db;
+    border-radius: 3px;
   }
-  #toggle-auto-refresh[data-enabled="true"] {
-    @apply bg-green-500 hover:bg-green-600 focus:ring-green-300;
+  .multi-select-dropdown input[type="checkbox"]:focus {
+    outline: none !important;
+    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3) !important;
+    border-color: #3b82f6 !important;
+  }
+  .multi-select-dropdown input[type="checkbox"]:checked {
+    background-color: #3b82f6 !important;
+    border-color: #3b82f6 !important;
+  }
+  .dark .multi-select-dropdown input[type="checkbox"] {
+    border-color: #6b7280;
+    background-color: #374151;
+  }
+  .dark .multi-select-dropdown input[type="checkbox"]:focus {
+    border-color: #3b82f6 !important;
+    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3) !important;
+  }
+  .dark .multi-select-dropdown input[type="checkbox"]:checked {
+    background-color: #3b82f6 !important;
+    border-color: #3b82f6 !important;
   }
  
+  .multi-select-dropdown label {
+    -webkit-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+  }