1 from __future__ import division
6 from twisted.internet import defer, protocol, reactor
7 from twisted.python import log
10 from p2pool import data as p2pool_data
11 from p2pool.bitcoin import p2p as bitcoin_p2p
12 from p2pool.bitcoin import data as bitcoin_data
13 from p2pool.util import deferral
15 class Protocol(bitcoin_p2p.BaseProtocol):
17 sub_version = p2pool.__version__
19 def __init__(self, node, incoming):
21 self.incoming = incoming
23 self._prefix = self.node.net.PREFIX
25 max_payload_length = 1000000
31 def connectionMade(self):
32 bitcoin_p2p.BaseProtocol.connectionMade(self)
34 self.factory.proto_made_connection(self)
36 self.addr = self.transport.getPeer().host, self.transport.getPeer().port
43 address=self.transport.getPeer().host,
44 port=self.transport.getPeer().port,
48 address=self.transport.getHost().host,
49 port=self.transport.getHost().port,
51 nonce=self.node.nonce,
52 sub_version=self.sub_version,
54 best_share_hash=self.node.best_share_hash_func(),
57 reactor.callLater(10, self._connect_timeout)
58 self.timeout_delayed = reactor.callLater(100, self._timeout)
60 def _connect_timeout(self):
61 if not self.connected2 and self.transport.connected:
62 print 'Handshake timed out, disconnecting from %s:%i' % self.addr
63 self.transport.loseConnection()
66 if not self.timeout_delayed.called:
67 self.timeout_delayed.cancel()
68 self.timeout_delayed = reactor.callLater(100, self._timeout)
71 if self.transport.connected:
72 print 'Connection timed out, disconnecting from %s:%i' % self.addr
73 self.transport.loseConnection()
75 @defer.inlineCallbacks
77 while self.connected2:
79 yield deferral.sleep(random.expovariate(1/100))
81 @defer.inlineCallbacks
83 while self.connected2:
84 self.send_addrme(port=self.node.port)
85 #print 'sending addrme'
86 yield deferral.sleep(random.expovariate(1/(100*len(self.node.peers) + 1)))
88 message_version = bitcoin_data.ComposedType([
89 ('version', bitcoin_data.StructType('<I')),
90 ('services', bitcoin_data.StructType('<Q')),
91 ('addr_to', bitcoin_data.address_type),
92 ('addr_from', bitcoin_data.address_type),
93 ('nonce', bitcoin_data.StructType('<Q')),
94 ('sub_version', bitcoin_data.VarStrType()),
95 ('mode', bitcoin_data.StructType('<I')), # always 1 for legacy compatibility
96 ('best_share_hash', bitcoin_data.PossiblyNoneType(0, bitcoin_data.HashType())),
98 def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
99 if self.other_version is not None or version < 2:
100 self.transport.loseConnection()
103 self.other_version = version
104 self.other_sub_version = sub_version[:512]
105 self.other_services = services
107 if nonce == self.node.nonce:
108 #print 'Detected connection to self, disconnecting from %s:%i' % self.addr
109 self.transport.loseConnection()
111 if nonce in self.node.peers:
112 #print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
113 self.transport.loseConnection()
117 self.connected2 = True
118 self.factory.proto_connected(self)
123 if best_share_hash is not None:
124 self.node.handle_share_hashes([best_share_hash], self)
126 message_ping = bitcoin_data.ComposedType([])
127 def handle_ping(self):
128 if not self.connected2:
129 self.transport.loseConnection()
132 message_addrme = bitcoin_data.ComposedType([
133 ('port', bitcoin_data.StructType('<H')),
135 def handle_addrme(self, port):
136 if not self.connected2:
137 self.transport.loseConnection()
139 host = self.transport.getPeer().host
140 #print 'addrme from', host, port
141 if host == '127.0.0.1':
142 if random.random() < .8 and self.node.peers:
143 random.choice(self.node.peers.values()).send_addrme(port=port) # services...
145 self.node.got_addr((self.transport.getPeer().host, port), self.other_services, int(time.time()))
146 if random.random() < .8 and self.node.peers:
147 random.choice(self.node.peers.values()).send_addrs(addrs=[
150 services=self.other_services,
154 timestamp=int(time.time()),
158 message_addrs = bitcoin_data.ComposedType([
159 ('addrs', bitcoin_data.ListType(bitcoin_data.ComposedType([
160 ('timestamp', bitcoin_data.StructType('<Q')),
161 ('address', bitcoin_data.address_type),
164 def handle_addrs(self, addrs):
165 if not self.connected2:
166 self.transport.loseConnection()
168 for addr_record in addrs:
169 self.node.got_addr((addr_record['address']['address'], addr_record['address']['port']), addr_record['address']['services'], min(int(time.time()), addr_record['timestamp']))
170 if random.random() < .8 and self.node.peers:
171 random.choice(self.node.peers.values()).send_addrs(addrs=[addr_record])
173 message_getaddrs = bitcoin_data.ComposedType([
174 ('count', bitcoin_data.StructType('<I')),
176 def handle_getaddrs(self, count):
177 if not self.connected2:
178 self.transport.loseConnection()
182 self.send_addrs(addrs=[
184 timestamp=self.node.addr_store[host, port][2],
186 services=self.node.addr_store[host, port][0],
191 self.node.get_good_peers(count)
194 message_getshares = bitcoin_data.ComposedType([
195 ('hashes', bitcoin_data.ListType(bitcoin_data.HashType())),
196 ('parents', bitcoin_data.VarIntType()),
197 ('stops', bitcoin_data.ListType(bitcoin_data.HashType())),
199 def handle_getshares(self, hashes, parents, stops):
200 if not self.connected2:
201 self.transport.loseConnection()
203 self.node.handle_get_shares(hashes, parents, stops, self)
205 message_shares = bitcoin_data.ComposedType([
206 ('shares', bitcoin_data.ListType(p2pool_data.share_type)),
208 def handle_shares(self, shares):
209 if not self.connected2:
210 self.transport.loseConnection()
214 share_obj = p2pool_data.Share.from_share(share, self.node.net)
215 share_obj.peer = self
216 res.append(share_obj)
217 self.node.handle_shares(res)
219 def sendShares(self, shares, full=False):
220 def att(f, **kwargs):
223 except bitcoin_p2p.TooLong:
224 att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
225 att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
227 att(self.send_shares, shares=[share.as_share() for share in shares])
229 def connectionLost(self, reason):
231 self.factory.proto_disconnected(self)
232 self.connected2 = False
233 self.factory.proto_lost_connection(self)
235 class ServerFactory(protocol.ServerFactory):
236 def __init__(self, node, max_conns):
238 self.max_conns = max_conns
243 def buildProtocol(self, addr):
244 if len(self.conns) >= self.max_conns:
246 p = Protocol(self.node, True)
250 def proto_made_connection(self, proto):
251 self.conns.add(proto)
252 def proto_lost_connection(self, proto):
253 self.conns.remove(proto)
255 def proto_connected(self, proto):
256 self.node.got_conn(proto)
257 def proto_disconnected(self, proto):
258 self.node.lost_conn(proto)
261 assert not self.running
264 self.listen_port = reactor.listenTCP(self.node.port, self)
269 self.listen_port.stopListening()
271 class ClientFactory(protocol.ClientFactory):
272 def __init__(self, node, desired_conns, max_attempts, preferred_addrs):
274 self.desired_conns = desired_conns
275 self.max_attempts = max_attempts
276 self.preferred_addrs = preferred_addrs
282 def buildProtocol(self, addr):
283 p = Protocol(self.node, False)
287 def startedConnecting(self, connector):
288 host, port = connector.getDestination().host, connector.getDestination().port
289 if (host, port) in self.attempts:
290 raise ValueError('already have attempt')
291 self.attempts[host, port] = connector
293 def clientConnectionFailed(self, connector, reason):
294 self.clientConnectionLost(connector, reason)
296 def clientConnectionLost(self, connector, reason):
297 host, port = connector.getDestination().host, connector.getDestination().port
298 if (host, port) not in self.attempts:
299 raise ValueError('''don't have attempt''')
300 if connector is not self.attempts[host, port]:
301 raise ValueError('wrong connector')
302 del self.attempts[host, port]
304 def proto_made_connection(self, proto):
306 def proto_lost_connection(self, proto):
309 def proto_connected(self, proto):
310 self.conns.add(proto)
311 self.node.got_conn(proto)
312 def proto_disconnected(self, proto):
313 self.conns.remove(proto)
314 self.node.lost_conn(proto)
317 assert not self.running
324 @defer.inlineCallbacks
328 if len(self.conns) < self.desired_conns and len(self.attempts) < self.max_attempts and (len(self.preferred_addrs) or len(self.node.addr_store)):
329 if (random.randrange(2) and len(self.preferred_addrs)) or not len(self.node.addr_store):
330 host, port = random.choice(list(self.preferred_addrs))
332 (host, port), = self.node.get_good_peers(1)
334 if (host, port) not in self.attempts:
335 #print 'Trying to connect to', host, port
336 reactor.connectTCP(host, port, self, timeout=5)
340 yield deferral.sleep(random.expovariate(1/1))
343 def __init__(self, best_share_hash_func, port, net, addr_store={}, preferred_addrs=set(), desired_outgoing_conns=10, max_outgoing_attempts=30, max_incoming_conns=50, preferred_storage=1000):
344 self.best_share_hash_func = best_share_hash_func
347 self.addr_store = dict(addr_store)
348 self.preferred_storage = preferred_storage
350 self.nonce = random.randrange(2**64)
352 self.clientfactory = ClientFactory(self, desired_outgoing_conns, max_outgoing_attempts, preferred_addrs)
353 self.serverfactory = ServerFactory(self, max_incoming_conns)
358 raise ValueError('already running')
360 self.clientfactory.start()
361 self.serverfactory.start()
367 @defer.inlineCallbacks
371 if len(self.addr_store) < self.preferred_storage and self.peers:
372 random.choice(self.peers.values()).send_getaddrs(count=8)
376 yield deferral.sleep(random.expovariate(1/20))
380 raise ValueError('already stopped')
384 self.clientfactory.stop()
385 self.serverfactory.stop()
387 def got_conn(self, conn):
388 if conn.nonce in self.peers:
389 raise ValueError('already have peer')
390 self.peers[conn.nonce] = conn
392 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)
394 def lost_conn(self, conn):
395 if conn.nonce not in self.peers:
396 raise ValueError('''don't have peer''')
397 if conn is not self.peers[conn.nonce]:
398 raise ValueError('wrong conn')
399 del self.peers[conn.nonce]
401 print 'Lost peer %s:%i' % (conn.addr[0], conn.addr[1])
404 def got_addr(self, (host, port), services, timestamp):
405 if (host, port) in self.addr_store:
406 old_services, old_first_seen, old_last_seen = self.addr_store[host, port]
407 self.addr_store[host, port] = services, old_first_seen, max(old_last_seen, timestamp)
409 self.addr_store[host, port] = services, timestamp, timestamp
411 def handle_shares(self, shares, peer):
412 print 'handle_shares', (shares, peer)
414 def handle_share_hashes(self, hashes, peer):
415 print 'handle_share_hashes', (hashes, peer)
417 def handle_get_shares(self, hashes, parents, stops, peer):
418 print 'handle_get_shares', (hashes, parents, stops, peer)
420 def get_good_peers(self, max_count):
422 return [x[0] for x in sorted(self.addr_store.iteritems(), key=lambda (k, (services, first_seen, last_seen)): -(last_seen - first_seen)/max(3600, t - last_seen)*random.expovariate(1))][:max_count]
424 if __name__ == '__main__':
425 p = random.randrange(2**15, 2**16)
427 p2 = random.randrange(2**15, 2**16)
429 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())))})