Files
basicswap/basicswap/network/simplex_chat.py
2025-06-08 20:32:29 +02:00

107 lines
3.0 KiB
Python

#!/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 subprocess
import time
from basicswap.bin.run import Daemon
def initSimplexClient(args, logger, delay_event):
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
# logging.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 ValueError("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,
) -> Daemon:
logger.info("Starting Simplex client")
if not os.path.exists(data_path):
os.makedirs(data_path)
db_path = os.path.join(data_path, "simplex_client_data")
args = [bin_path, "-d", db_path, "-s", server_address, "-p", str(websocket_port)]
if not os.path.exists(db_path):
# Need to set initial profile through CLI
# TODO: Must be a better way?
init_args = args + ["-e", "/help"] # Run command ro exit client
initSimplexClient(init_args, logger, delay_event)
args += ["-l", "debug"]
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,
)