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.disconnected_servers = []
56 def register_callback(self, event, callback):
58 if not self.callbacks.get(event):
59 self.callbacks[event] = []
60 self.callbacks[event].append(callback)
63 def trigger_callback(self, event):
65 callbacks = self.callbacks.get(event,[])[:]
67 [callback() for callback in callbacks]
70 def random_server(self):
72 l = filter_protocol(self.get_servers(), 's')
74 if s in self.disconnected_servers or s in self.interfaces.keys():
79 if not choice_list: return
81 server = random.choice( choice_list )
85 def get_servers(self):
87 return DEFAULT_SERVERS
92 def start_interface(self, server):
93 if server in self.interfaces.keys():
95 i = interface.Interface({'server':server})
96 self.interfaces[server] = i
99 def start_random_interface(self):
100 server = self.random_server()
102 self.start_interface(server)
104 def start_interfaces(self):
105 if self.default_server:
106 self.start_interface(self.default_server)
107 self.interface = self.interfaces[self.default_server]
110 self.start_random_interface()
112 if not self.interface:
113 self.interface = self.interfaces.values()[0]
116 def start(self, wait=False):
117 self.start_interfaces()
118 threading.Thread.start(self)
120 self.interface.connect_event.wait()
121 return self.interface.is_connected
124 def set_server(self, server, proxy):
126 self.default_server = server
127 self.start_interface(server)
128 self.interface = self.interfaces[server]
129 i.stop_subscriptions() # fixme: it should not stop all subscriptions, and send 'unsubscribe'
130 self.trigger_callback('disconnecting') # for actively disconnecting
134 self.blockchain.start()
139 while self.is_running():
143 i.send([ ('blockchain.headers.subscribe',[])], self.on_header)
144 if i == self.interface:
145 i.send([('server.banner',[])], self.on_banner)
146 i.send([('server.peers.subscribe',[])], self.on_peers)
147 self.trigger_callback('connected')
149 self.disconnected_servers.append(i.server)
150 self.interfaces.pop(i.server)
151 self.start_random_interface()
153 if i == self.interface:
154 if self.config.get('auto_cycle'):
155 self.interface = random.choice(self.interfaces.values())
156 self.config.set_key('server', self.interface.server, False)
158 self.trigger_callback('disconnected')
160 def on_header(self, i, r):
161 result = r.get('result')
162 if not result: return
163 self.heights[i.server] = result.get('block_height')
164 self.blockchain.queue.put((i,result))
166 def on_peers(self, i, r):
168 self.servers = self.parse_servers(r.get('result'))
169 self.trigger_callback('peers')
171 def on_banner(self, i, r):
172 self.banner = r.get('result')
173 self.trigger_callback('banner')
176 with self.lock: self.running = False
178 def is_running(self):
179 with self.lock: return self.running
182 def retrieve_transaction(self, tx_hash, tx_height=0):
184 r = self.interface.synchronous_get([ ('blockchain.transaction.get',[tx_hash, tx_height]) ])[0]
185 return transaction.Transaction(r)
188 def parse_servers(self, result):
189 """ parse servers list into dict format"""
190 from version import PROTOCOL_VERSION
199 if re.match("[stgh]\d*", v):
200 protocol, port = v[0], v[1:]
201 if port == '': port = DEFAULT_PORTS[protocol]
203 elif re.match("v(.?)+", v):
205 elif re.match("p\d*", v):
206 pruning_level = v[1:]
207 if pruning_level == '': pruning_level = '0'
209 is_recent = float(version)>=float(PROTOCOL_VERSION)
213 if out and is_recent:
214 out['pruning'] = pruning_level
222 if __name__ == "__main__":
224 config = simple_config.SimpleConfig({'verbose':True, 'server':'ecdsa.org:50002:s'})
225 network = Network(config)