1 from __future__ import division
7 from twisted.internet import defer, error, protocol, reactor
8 from twisted.python import log
11 from p2pool import data as p2pool_data
12 from p2pool.bitcoin import p2p as bitcoin_p2p
13 from p2pool.bitcoin import data as bitcoin_data
14 from p2pool.util import deferral, pack
16 class Protocol(bitcoin_p2p.BaseProtocol):
18 sub_version = p2pool.__version__
20 def __init__(self, node, incoming):
22 self.incoming = incoming
24 self._prefix = self.node.net.PREFIX
26 max_payload_length = 1000000
32 def connectionMade(self):
33 bitcoin_p2p.BaseProtocol.connectionMade(self)
35 self.factory.proto_made_connection(self)
37 self.addr = self.transport.getPeer().host, self.transport.getPeer().port
44 address=self.transport.getPeer().host,
45 port=self.transport.getPeer().port,
49 address=self.transport.getHost().host,
50 port=self.transport.getHost().port,
52 nonce=self.node.nonce,
53 sub_version=self.sub_version,
55 best_share_hash=self.node.best_share_hash_func(),
58 reactor.callLater(10, self._connect_timeout)
59 self.timeout_delayed = reactor.callLater(100, self._timeout)
61 old_dataReceived = self.dataReceived
62 def new_dataReceived(data):
63 if not self.timeout_delayed.called:
64 self.timeout_delayed.reset(100)
65 old_dataReceived(data)
66 self.dataReceived = new_dataReceived
68 def _connect_timeout(self):
69 if not self.connected2 and self.transport.connected:
70 print 'Handshake timed out, disconnecting from %s:%i' % self.addr
71 self.transport.loseConnection()
73 def packetReceived(self, command, payload2):
74 if command != 'version' and not self.connected2:
75 self.transport.loseConnection()
78 bitcoin_p2p.BaseProtocol.packetReceived(self, command, payload2)
81 if self.transport.connected:
82 print 'Connection timed out, disconnecting from %s:%i' % self.addr
83 self.transport.loseConnection()
85 @defer.inlineCallbacks
87 while self.connected2:
89 yield deferral.sleep(random.expovariate(1/100))
91 @defer.inlineCallbacks
93 while self.connected2:
94 self.send_addrme(port=self.node.port)
95 #print 'sending addrme'
96 yield deferral.sleep(random.expovariate(1/(100*len(self.node.peers) + 1)))
98 message_version = pack.ComposedType([
99 ('version', pack.IntType(32)),
100 ('services', pack.IntType(64)),
101 ('addr_to', bitcoin_data.address_type),
102 ('addr_from', bitcoin_data.address_type),
103 ('nonce', pack.IntType(64)),
104 ('sub_version', pack.VarStrType()),
105 ('mode', pack.IntType(32)), # always 1 for legacy compatibility
106 ('best_share_hash', pack.PossiblyNoneType(0, pack.IntType(256))),
108 def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
109 if self.other_version is not None or version < 2:
110 self.transport.loseConnection()
113 self.other_version = version
114 self.other_sub_version = sub_version[:512]
115 self.other_services = services
117 if nonce == self.node.nonce:
118 #print 'Detected connection to self, disconnecting from %s:%i' % self.addr
119 self.transport.loseConnection()
121 if nonce in self.node.peers:
122 #print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
123 self.transport.loseConnection()
127 self.connected2 = True
128 self.factory.proto_connected(self)
133 if best_share_hash is not None:
134 self.node.handle_share_hashes([best_share_hash], self)
136 message_ping = pack.ComposedType([])
137 def handle_ping(self):
140 message_addrme = pack.ComposedType([
141 ('port', pack.IntType(16)),
143 def handle_addrme(self, port):
144 host = self.transport.getPeer().host
145 #print 'addrme from', host, port
146 if host == '127.0.0.1':
147 if random.random() < .8 and self.node.peers:
148 random.choice(self.node.peers.values()).send_addrme(port=port) # services...
150 self.node.got_addr((self.transport.getPeer().host, port), self.other_services, int(time.time()))
151 if random.random() < .8 and self.node.peers:
152 random.choice(self.node.peers.values()).send_addrs(addrs=[
155 services=self.other_services,
159 timestamp=int(time.time()),
163 message_addrs = pack.ComposedType([
164 ('addrs', pack.ListType(pack.ComposedType([
165 ('timestamp', pack.IntType(64)),
166 ('address', bitcoin_data.address_type),
169 def handle_addrs(self, addrs):
170 for addr_record in addrs:
171 self.node.got_addr((addr_record['address']['address'], addr_record['address']['port']), addr_record['address']['services'], min(int(time.time()), addr_record['timestamp']))
172 if random.random() < .8 and self.node.peers:
173 random.choice(self.node.peers.values()).send_addrs(addrs=[addr_record])
175 message_getaddrs = pack.ComposedType([
176 ('count', pack.IntType(32)),
178 def handle_getaddrs(self, count):
181 self.send_addrs(addrs=[
183 timestamp=self.node.addr_store[host, port][2],
185 services=self.node.addr_store[host, port][0],
190 self.node.get_good_peers(count)
193 message_getshares = pack.ComposedType([
194 ('hashes', pack.ListType(pack.IntType(256))),
195 ('parents', pack.VarIntType()),
196 ('stops', pack.ListType(pack.IntType(256))),
198 def handle_getshares(self, hashes, parents, stops):
199 self.node.handle_get_shares(hashes, parents, stops, self)
201 message_shares = pack.ComposedType([
202 ('shares', pack.ListType(p2pool_data.share_type)),
204 def handle_shares(self, shares):
207 share_obj = p2pool_data.Share.from_share(share, self.node.net)
208 share_obj.peer = self
209 res.append(share_obj)
210 self.node.handle_shares(res, self)
212 def sendShares(self, shares, full=False):
213 def att(f, **kwargs):
216 except bitcoin_p2p.TooLong:
217 att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
218 att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
220 att(self.send_shares, shares=[share.as_share() for share in shares])
222 def connectionLost(self, reason):
224 self.factory.proto_disconnected(self, reason)
225 self.connected2 = False
226 self.factory.proto_lost_connection(self, reason)
228 class ServerFactory(protocol.ServerFactory):
229 def __init__(self, node, max_conns):
231 self.max_conns = max_conns
236 def buildProtocol(self, addr):
237 if len(self.conns) >= self.max_conns:
239 p = Protocol(self.node, True)
243 def proto_made_connection(self, proto):
244 self.conns.add(proto)
245 def proto_lost_connection(self, proto, reason):
246 self.conns.remove(proto)
248 def proto_connected(self, proto):
249 self.node.got_conn(proto)
250 def proto_disconnected(self, proto, reason):
251 self.node.lost_conn(proto, reason)
254 assert not self.running
257 def attempt_listen():
261 self.listen_port = reactor.listenTCP(self.node.port, self)
262 except error.CannotListenError, e:
263 print >>sys.stderr, 'Error binding to P2P port: %s. Retrying in 3 seconds.' % (e.socketError,)
264 reactor.callLater(3, attempt_listen)
271 self.listen_port.stopListening()
273 class ClientFactory(protocol.ClientFactory):
274 def __init__(self, node, desired_conns, max_attempts):
276 self.desired_conns = desired_conns
277 self.max_attempts = max_attempts
279 self.attempts = set()
283 def _host_to_ident(self, host):
284 a, b, c, d = host.split('.')
287 def buildProtocol(self, addr):
288 p = Protocol(self.node, False)
292 def startedConnecting(self, connector):
293 ident = self._host_to_ident(connector.getDestination().host)
294 if ident in self.attempts:
295 raise AssertionError('already have attempt')
296 self.attempts.add(ident)
298 def clientConnectionFailed(self, connector, reason):
299 self.attempts.remove(self._host_to_ident(connector.getDestination().host))
301 def clientConnectionLost(self, connector, reason):
302 self.attempts.remove(self._host_to_ident(connector.getDestination().host))
304 def proto_made_connection(self, proto):
306 def proto_lost_connection(self, proto, reason):
309 def proto_connected(self, proto):
310 self.conns.add(proto)
311 self.node.got_conn(proto)
312 def proto_disconnected(self, proto, reason):
313 self.conns.remove(proto)
314 self.node.lost_conn(proto, reason)
317 assert not self.running
324 @defer.inlineCallbacks
328 if len(self.conns) < self.desired_conns and len(self.attempts) < self.max_attempts and self.node.addr_store:
329 (host, port), = self.node.get_good_peers(1)
331 if self._host_to_ident(host) not in self.attempts:
332 #print 'Trying to connect to', host, port
333 reactor.connectTCP(host, port, self, timeout=5)
337 yield deferral.sleep(random.expovariate(1/1))
339 class SingleClientFactory(protocol.ReconnectingClientFactory):
340 def __init__(self, node):
343 def buildProtocol(self, addr):
344 p = Protocol(self.node, incoming=False)
348 def proto_made_connection(self, proto):
350 def proto_lost_connection(self, proto, reason):
353 def proto_connected(self, proto):
355 self.node.got_conn(proto)
356 def proto_disconnected(self, proto, reason):
357 self.node.lost_conn(proto, reason)
360 def __init__(self, best_share_hash_func, port, net, addr_store={}, connect_addrs=set(), desired_outgoing_conns=10, max_outgoing_attempts=30, max_incoming_conns=50, preferred_storage=1000):
361 self.best_share_hash_func = best_share_hash_func
364 self.addr_store = dict(addr_store)
365 self.connect_addrs = connect_addrs
366 self.preferred_storage = preferred_storage
368 self.nonce = random.randrange(2**64)
370 self.clientfactory = ClientFactory(self, desired_outgoing_conns, max_outgoing_attempts)
371 self.serverfactory = ServerFactory(self, max_incoming_conns)
376 raise ValueError('already running')
378 self.clientfactory.start()
379 self.serverfactory.start()
380 self.singleclientconnectors = [reactor.connectTCP(addr, port, SingleClientFactory(self)) for addr, port in self.connect_addrs]
386 @defer.inlineCallbacks
390 if len(self.addr_store) < self.preferred_storage and self.peers:
391 random.choice(self.peers.values()).send_getaddrs(count=8)
395 yield deferral.sleep(random.expovariate(1/20))
399 raise ValueError('already stopped')
403 self.clientfactory.stop()
404 self.serverfactory.stop()
405 for singleclientconnector in self.singleclientconnectors:
406 singleclientconnector.factory.stopTrying() # XXX will this disconnect a current connection?
407 del self.singleclientconnectors
409 def got_conn(self, conn):
410 if conn.nonce in self.peers:
411 raise ValueError('already have peer')
412 self.peers[conn.nonce] = conn
414 print '%s connection to peer %s:%i established. p2pool version: %i %r' % ('Incoming' if conn.incoming else 'Outgoing', conn.addr[0], conn.addr[1], conn.other_version, conn.other_sub_version)
416 def lost_conn(self, conn, reason):
417 if conn.nonce not in self.peers:
418 raise ValueError('''don't have peer''')
419 if conn is not self.peers[conn.nonce]:
420 raise ValueError('wrong conn')
421 del self.peers[conn.nonce]
423 print 'Lost peer %s:%i - %s' % (conn.addr[0], conn.addr[1], reason.getErrorMessage())
426 def got_addr(self, (host, port), services, timestamp):
427 if (host, port) in self.addr_store:
428 old_services, old_first_seen, old_last_seen = self.addr_store[host, port]
429 self.addr_store[host, port] = services, old_first_seen, max(old_last_seen, timestamp)
431 self.addr_store[host, port] = services, timestamp, timestamp
433 def handle_shares(self, shares, peer):
434 print 'handle_shares', (shares, peer)
436 def handle_share_hashes(self, hashes, peer):
437 print 'handle_share_hashes', (hashes, peer)
439 def handle_get_shares(self, hashes, parents, stops, peer):
440 print 'handle_get_shares', (hashes, parents, stops, peer)
442 def get_good_peers(self, max_count):
444 return [x[0] for x in sorted(self.addr_store.iteritems(), key=lambda (k, (services, first_seen, last_seen)): -max(3600, last_seen - first_seen)/max(3600, t - last_seen)*random.expovariate(1))][:max_count]
446 if __name__ == '__main__':
447 p = random.randrange(2**15, 2**16)
449 p2 = random.randrange(2**15, 2**16)
451 n = Node(p2, True, {addrdb_key.pack(dict(address='127.0.0.1', port=p)): addrdb_value.pack(dict(services=0, first_seen=int(time.time())-10, last_seen=int(time.time())))})