import shared import socket import defaultKnownNodes import pickle import time from debug import logger import socks def knownNodes(): try: # We shouldn't have to use the shared.knownNodesLock because this had # better be the only thread accessing knownNodes right now. pickleFile = open(shared.appdata + 'knownnodes.dat', 'rb') loadedKnownNodes = pickle.load(pickleFile) pickleFile.close() # The old format of storing knownNodes was as a 'host: (port, time)' # mapping. The new format is as 'Peer: time' pairs. If we loaded # data in the old format, transform it to the new style. for stream, nodes in loadedKnownNodes.items(): shared.knownNodes[stream] = {} for node_tuple in nodes.items(): try: host, (port, time) = node_tuple peer = shared.Peer(host, port) except: peer, time = node_tuple shared.knownNodes[stream][peer] = time except: shared.knownNodes = defaultKnownNodes.createDefaultKnownNodes(shared.appdata) if shared.config.getint('bitmessagesettings', 'settingsversion') > 10: logger.error('Bitmessage cannot read future versions of the keys file (keys.dat). Run the newer version of Bitmessage.') raise SystemExit def dns(): # DNS bootstrap. This could be programmed to use the SOCKS proxy to do the # DNS lookup some day but for now we will just rely on the entries in # defaultKnownNodes.py. Hopefully either they are up to date or the user # has run Bitmessage recently without SOCKS turned on and received good # bootstrap nodes using that method. if shared.config.get('bitmessagesettings', 'socksproxytype') == 'none': try: for item in socket.getaddrinfo('bootstrap8080.bitmessage.org', 80): logger.info('Adding ' + item[4][0] + ' to knownNodes based on DNS bootstrap method') shared.knownNodes[1][shared.Peer(item[4][0], 8080)] = int(time.time()) except: logger.error('bootstrap8080.bitmessage.org DNS bootstrapping failed.') try: for item in socket.getaddrinfo('bootstrap8444.bitmessage.org', 80): logger.info ('Adding ' + item[4][0] + ' to knownNodes based on DNS bootstrap method') shared.knownNodes[1][shared.Peer(item[4][0], 8444)] = int(time.time()) except: logger.error('bootstrap8444.bitmessage.org DNS bootstrapping failed.') elif shared.config.get('bitmessagesettings', 'socksproxytype') == 'SOCKS5': shared.knownNodes[1][shared.Peer('quzwelsuziwqgpt2.onion', 8444)] = int(time.time()) logger.debug("Adding quzwelsuziwqgpt2.onion:8444 to knownNodes.") for port in [8080, 8444]: logger.debug("Resolving %i through SOCKS...", port) address_family = socket.AF_INET sock = socks.socksocket(address_family, socket.SOCK_STREAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.settimeout(20) proxytype = socks.PROXY_TYPE_SOCKS5 sockshostname = shared.config.get( 'bitmessagesettings', 'sockshostname') socksport = shared.config.getint( 'bitmessagesettings', 'socksport') rdns = True # Do domain name lookups through the proxy; though this setting doesn't really matter since we won't be doing any domain name lookups anyway. if shared.config.getboolean('bitmessagesettings', 'socksauthentication'): socksusername = shared.config.get( 'bitmessagesettings', 'socksusername') sockspassword = shared.config.get( 'bitmessagesettings', 'sockspassword') sock.setproxy( proxytype, sockshostname, socksport, rdns, socksusername, sockspassword) else: sock.setproxy( proxytype, sockshostname, socksport, rdns) try: ip = sock.resolve("bootstrap" + str(port) + ".bitmessage.org") sock.shutdown(socket.SHUT_RDWR) sock.close() except: logger.error("SOCKS DNS resolving failed", exc_info=True) if ip is not None: logger.info ('Adding ' + ip + ' to knownNodes based on SOCKS DNS bootstrap method') shared.knownNodes[1][shared.Peer(ip, port)] = time.time() else: logger.info('DNS bootstrap skipped because the proxy type does not support DNS resolution.')