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):
22 self._prefix = self.node.net.PREFIX
24 max_payload_length = 1000000
30 def connectionMade(self):
31 bitcoin_p2p.BaseProtocol.connectionMade(self)
33 self.addr = self.transport.getPeer().host, self.transport.getPeer().port
40 address=self.transport.getPeer().host,
41 port=self.transport.getPeer().port,
45 address=self.transport.getHost().host,
46 port=self.transport.getHost().port,
48 nonce=self.node.nonce,
49 sub_version=self.sub_version,
51 best_share_hash=self.node.current_work.value['best_share_hash'],
54 reactor.callLater(10, self._connect_timeout)
55 self.timeout_delayed = reactor.callLater(100, self._timeout)
57 def _connect_timeout(self):
58 if not self.connected2 and self.transport.connected:
59 print 'Handshake timed out, disconnecting from %s:%i' % self.addr
60 self.transport.loseConnection()
63 if not self.timeout_delayed.called:
64 self.timeout_delayed.cancel()
65 self.timeout_delayed = reactor.callLater(100, self._timeout)
68 if self.transport.connected:
69 print 'Connection timed out, disconnecting from %s:%i' % self.addr
70 self.transport.loseConnection()
72 @defer.inlineCallbacks
74 while self.connected2:
76 yield deferral.sleep(random.expovariate(1/100))
78 @defer.inlineCallbacks
80 while self.connected2:
81 self.send_addrme(port=self.node.port)
82 #print 'sending addrme'
83 yield deferral.sleep(random.expovariate(1/(100*len(self.node.peers) + 1)))
85 message_version = bitcoin_data.ComposedType([
86 ('version', bitcoin_data.StructType('<I')),
87 ('services', bitcoin_data.StructType('<Q')),
88 ('addr_to', bitcoin_data.address_type),
89 ('addr_from', bitcoin_data.address_type),
90 ('nonce', bitcoin_data.StructType('<Q')),
91 ('sub_version', bitcoin_data.VarStrType()),
92 ('mode', bitcoin_data.StructType('<I')), # always 1 for legacy compatibility
93 ('best_share_hash', bitcoin_data.PossiblyNoneType(0, bitcoin_data.HashType())),
95 def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
96 self.other_version = version
97 self.other_sub_version = sub_version[:512]
98 self.other_services = services
100 if nonce == self.node.nonce:
101 #print 'Detected connection to self, disconnecting from %s:%i' % self.addr
102 self.transport.loseConnection()
104 if nonce in self.node.peers:
105 #print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
106 self.transport.loseConnection()
110 self.connected2 = True
111 self.node.got_conn(self)
116 if best_share_hash is not None:
117 self.node.handle_share_hashes([best_share_hash], self)
119 message_ping = bitcoin_data.ComposedType([])
120 def handle_ping(self):
123 message_addrme = bitcoin_data.ComposedType([
124 ('port', bitcoin_data.StructType('<H')),
126 def handle_addrme(self, port):
127 host = self.transport.getPeer().host
128 #print 'addrme from', host, port
129 if host == '127.0.0.1':
130 if random.random() < .8 and self.node.peers:
131 random.choice(self.node.peers.values()).send_addrme(port=port) # services...
133 self.node.got_addr((self.transport.getPeer().host, port), self.other_services, int(time.time()))
134 if random.random() < .8 and self.node.peers:
135 random.choice(self.node.peers.values()).send_addrs(addrs=[
138 services=self.other_services,
142 timestamp=int(time.time()),
146 message_addrs = bitcoin_data.ComposedType([
147 ('addrs', bitcoin_data.ListType(bitcoin_data.ComposedType([
148 ('timestamp', bitcoin_data.StructType('<Q')),
149 ('address', bitcoin_data.address_type),
152 def handle_addrs(self, addrs):
153 for addr_record in addrs:
154 self.node.got_addr((addr_record['address']['address'], addr_record['address']['port']), addr_record['address']['services'], min(int(time.time()), addr_record['timestamp']))
155 if random.random() < .8 and self.node.peers:
156 random.choice(self.node.peers.values()).send_addrs(addrs=[addr_record])
158 message_getaddrs = bitcoin_data.ComposedType([
159 ('count', bitcoin_data.StructType('<I')),
161 def handle_getaddrs(self, count):
164 self.send_addrs(addrs=[
166 timestamp=self.node.addr_store[host, port][2],
168 services=self.node.addr_store[host, port][0],
173 self.node.get_good_peers(count)
176 message_getshares = bitcoin_data.ComposedType([
177 ('hashes', bitcoin_data.ListType(bitcoin_data.HashType())),
178 ('parents', bitcoin_data.VarIntType()),
179 ('stops', bitcoin_data.ListType(bitcoin_data.HashType())),
181 def handle_getshares(self, hashes, parents, stops):
182 self.node.handle_get_shares(hashes, parents, stops, self)
184 message_shares = bitcoin_data.ComposedType([
185 ('shares', bitcoin_data.ListType(p2pool_data.share_type)),
187 def handle_shares(self, shares):
190 share_obj = p2pool_data.Share.from_share(share, self.node.net)
191 share_obj.peer = self
192 res.append(share_obj)
193 self.node.handle_shares(res)
195 def sendShares(self, shares, full=False):
196 def att(f, **kwargs):
199 except bitcoin_p2p.TooLong:
200 att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
201 att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
203 att(self.send_shares, shares=[share.as_share() for share in shares])
205 def connectionLost(self, reason):
207 self.node.lost_conn(self)
209 class ServerFactory(protocol.ServerFactory):
210 def __init__(self, node):
213 def buildProtocol(self, addr):
214 p = Protocol(self.node)
218 class ClientFactory(protocol.ClientFactory):
219 def __init__(self, node):
222 def buildProtocol(self, addr):
223 p = Protocol(self.node)
227 def startedConnecting(self, connector):
228 self.node.attempt_started(connector)
230 def clientConnectionFailed(self, connector, reason):
231 self.node.attempt_failed(connector)
233 def clientConnectionLost(self, connector, reason):
234 self.node.attempt_ended(connector)
237 def __init__(self, current_work, port, net, addr_store=None, preferred_addrs=set(), desired_peers=10, max_attempts=30, preferred_storage=1000):
238 if addr_store is None:
243 self.addr_store = addr_store
244 self.preferred_addrs = preferred_addrs
245 self.desired_peers = desired_peers
246 self.max_attempts = max_attempts
247 self.current_work = current_work
248 self.preferred_storage = preferred_storage
250 self.nonce = random.randrange(2**64)
257 raise ValueError('already running')
261 self.listen_port = reactor.listenTCP(self.port, ServerFactory(self))
266 @defer.inlineCallbacks
270 if len(self.peers) < self.desired_peers and len(self.attempts) < self.max_attempts and (len(self.preferred_addrs) or len(self.addr_store)):
271 if (random.randrange(2) and len(self.preferred_addrs)) or not len(self.addr_store):
272 host, port = random.choice(list(self.preferred_addrs))
274 (host, port), = self.get_good_peers(1)
276 if (host, port) not in self.attempts:
277 #print 'Trying to connect to', host, port
278 reactor.connectTCP(host, port, ClientFactory(self), timeout=5)
282 yield deferral.sleep(random.expovariate(1/1))
284 @defer.inlineCallbacks
288 if len(self.addr_store) < self.preferred_storage and self.peers:
289 random.choice(self.peers.values()).send_getaddrs(count=8)
293 yield deferral.sleep(random.expovariate(1/20))
297 raise ValueError('already stopped')
301 self.listen_port.stopListening()
304 def attempt_started(self, connector):
305 host, port = connector.getDestination().host, connector.getDestination().port
306 if (host, port) in self.attempts:
307 raise ValueError('already have attempt')
308 self.attempts[host, port] = connector
310 def attempt_failed(self, connector):
311 self.attempt_ended(connector)
313 def attempt_ended(self, connector):
314 host, port = connector.getDestination().host, connector.getDestination().port
315 if (host, port) not in self.attempts:
316 raise ValueError('''don't have attempt''')
317 if connector is not self.attempts[host, port]:
318 raise ValueError('wrong connector')
319 del self.attempts[host, port]
322 def got_conn(self, conn):
323 if conn.nonce in self.peers:
324 raise ValueError('already have peer')
325 self.peers[conn.nonce] = conn
327 print 'Connected to peer %s:%i. p2pool version: %i %r' % (conn.addr[0], conn.addr[1], conn.other_version, conn.other_sub_version)
329 def lost_conn(self, conn):
330 if conn.nonce not in self.peers:
331 raise ValueError('''don't have peer''')
332 if conn is not self.peers[conn.nonce]:
333 raise ValueError('wrong conn')
334 del self.peers[conn.nonce]
336 print 'Lost peer %s:%i' % (conn.addr[0], conn.addr[1])
339 def got_addr(self, (host, port), services, timestamp):
340 if (host, port) in self.addr_store:
341 old_services, old_first_seen, old_last_seen = self.addr_store[host, port]
342 self.addr_store[host, port] = services, old_first_seen, max(old_last_seen, timestamp)
344 self.addr_store[host, port] = services, timestamp, timestamp
346 def handle_shares(self, shares, peer):
347 print 'handle_shares', (shares, peer)
349 def handle_share_hashes(self, hashes, peer):
350 print 'handle_share_hashes', (hashes, peer)
352 def handle_get_shares(self, hashes, parents, stops, peer):
353 print 'handle_get_shares', (hashes, parents, stops, peer)
355 def get_good_peers(self, max_count):
357 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]
359 if __name__ == '__main__':
360 p = random.randrange(2**15, 2**16)
362 p2 = random.randrange(2**15, 2**16)
364 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())))})