html: More offer filtering.

basicswap/explorers.py

@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2019 tecnovert
+# Distributed under the MIT software license, see the accompanying
+# file LICENSE.txt or http://www.opensource.org/licenses/mit-license.php.
+
+import urllib.request
+import json
+
+
+class Explorer():
+    def __init__(self, swapclient, base_url):
+        self.swapclient = swapclient
+        self.base_url = base_url
+        self.log = self.swapclient.log
+
+
+class ExplorerInsight(Explorer):
+    def getChainHeight(self):
+        return json.loads(urllib.request.urlopen(self.base_url + '/sync').read())['blockChainHeight']
+
+    def lookupUnspentByAddress(self, address):
+        chain_height = self.getChainHeight()
+        self.log.debug('[rm] chain_height %d', chain_height)
+
+
+class ExplorerBitAps(Explorer):
+    def getChainHeight(self):
+        return json.loads(urllib.request.urlopen(self.base_url + '/block/last').read())['data']['block']['height']
+
+    def lookupUnspentByAddress(self, address):
+        chain_height = self.getChainHeight()
+        self.log.debug('[rm] chain_height %d', chain_height)
+
+
+class ExplorerChainz(Explorer):
+    def getChainHeight(self):
+        return int(urllib.request.urlopen(self.base_url + '?q=getblockcount').read())
+
+    def lookupUnspentByAddress(self, address):
+        chain_height = self.getChainHeight()
+        self.log.debug('[rm] chain_height %d', chain_height)