1 import threading, time, Queue, os, sys, shutil, random
2 from util import user_dir, appdata_dir, print_error, print_msg
5 from blockchain import Blockchain
7 DEFAULT_PORTS = {'t':'50001', 's':'50002', 'h':'8081', 'g':'8082'}
10 'the9ull.homelinux.org': {'h': '8082', 't': '50001'},
11 'electrum.coinwallet.me': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
12 'electrum.dynaloop.net': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
13 'electrum.koh.ms': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
14 'electrum.novit.ro': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
15 'electrum.stepkrav.pw': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
16 'ecdsa.org': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
17 'electrum.mooo.com': {'h': '8081', 't': '50001'},
18 'electrum.bitcoins.sk': {'h': '8081', 's': '50002', 't': '50001', 'g': '8'},
19 'electrum.no-ip.org': {'h': '80', 's': '50002', 't': '50001', 'g': '443'},
20 'electrum.drollette.com': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
21 'btc.it-zone.org': {'h': '80', 's': '110', 't': '50001', 'g': '443'},
22 'electrum.yacoin.com': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'},
23 'electrum.be': {'h': '8081', 's': '50002', 't': '50001', 'g': '8082'}
28 def filter_protocol(servers, p):
30 for k, protocols in servers.items():
32 l.append( ':'.join([k, protocols[p], p]) )
37 class Network(threading.Thread):
39 def __init__(self, config):
40 threading.Thread.__init__(self)
43 self.lock = threading.Lock()
44 self.blockchain = Blockchain(config, self)
46 self.queue = Queue.Queue()
47 self.default_server = self.config.get('server')
48 self.servers_list = filter_protocol(DEFAULT_SERVERS,'s')
54 def register_callback(self, event, callback):
56 if not self.callbacks.get(event):
57 self.callbacks[event] = []
58 self.callbacks[event].append(callback)
61 def trigger_callback(self, event):
63 callbacks = self.callbacks.get(event,[])[:]
65 [callback() for callback in callbacks]
68 def random_server(self):
69 if len(self.servers_list) <= len(self.interfaces.keys()):
73 server = random.choice( self.servers_list )
74 if server not in self.interfaces.keys(): break
79 def get_servers(self):
81 return DEFAULT_SERVERS
86 def start_interface(self, server):
87 if server in self.interfaces.keys():
89 i = interface.Interface({'server':server})
90 self.interfaces[server] = i
93 def start_random_interface(self):
94 server = self.random_server()
96 self.start_interface(server)
98 def start_interfaces(self):
99 if self.default_server:
100 self.start_interface(self.default_server)
101 self.interface = self.interfaces[self.default_server]
104 self.start_random_interface()
106 if not self.interface:
107 self.interface = self.interfaces.values()[0]
110 def start(self, wait=False):
111 self.start_interfaces()
112 threading.Thread.start(self)
114 self.interface.connect_event.wait()
115 return self.interface.is_connected
118 def set_server(self, server, proxy):
119 subscriptions = self.interface.subscriptions
120 self.default_server = server
121 self.start_interface(server)
122 self.interface = self.interfaces[server]
123 self.resend_subscriptions(subscriptions)
124 self.trigger_callback('disconnecting') # for actively disconnecting
128 self.blockchain.start()
133 while self.is_running():
137 i.send([ ('blockchain.headers.subscribe',[])], self.on_header)
138 if i == self.interface:
139 i.send([('server.banner',[])], self.on_banner)
140 i.send([('server.peers.subscribe',[])], self.on_peers)
142 self.servers_list.remove(i.server)
143 self.interfaces.pop(i.server)
144 self.start_random_interface()
146 if i == self.interface:
147 if self.config.get('auto_cycle'):
148 self.interface = random.choice(self.interfaces.values())
149 self.config.set_key('server', self.interface.server, False)
151 self.trigger_callback('disconnected')
153 def on_header(self, i, result):
154 self.blockchain.queue.put((i,result))
156 def on_peers(self, i, r):
157 self.servers = self.parse_servers(r.get('result'))
158 self.trigger_callback('peers')
160 def on_banner(self, i, r):
161 self.banner = r.get('result')
162 self.trigger_callback('banner')
165 with self.lock: self.running = False
167 def is_running(self):
168 with self.lock: return self.running
171 def parse_servers(self, result):
172 """ parse servers list into dict format"""
173 from version import PROTOCOL_VERSION
182 if re.match("[stgh]\d*", v):
183 protocol, port = v[0], v[1:]
184 if port == '': port = DEFAULT_PORTS[protocol]
186 elif re.match("v(.?)+", v):
188 elif re.match("p\d*", v):
189 pruning_level = v[1:]
190 if pruning_level == '': pruning_level = '0'
192 is_recent = float(version)>=float(PROTOCOL_VERSION)
196 if out and is_recent:
197 out['pruning'] = pruning_level
203 def resend_subscriptions(self, subscriptions):
204 for channel, messages in subscriptions.items():
206 self.interface.send(messages, channel)
211 if __name__ == "__main__":
213 config = simple_config.SimpleConfig({'verbose':True, 'server':'ecdsa.org:50002:s'})
214 network = Network(config)