from __future__ import division
+import math
import random
+import sys
import time
from twisted.internet import defer, protocol, reactor
-from twisted.python import log
+from twisted.python import failure, log
import p2pool
from p2pool import data as p2pool_data
-from p2pool.bitcoin import p2p as bitcoin_p2p
from p2pool.bitcoin import data as bitcoin_data
-from p2pool.util import deferral, dicts
+from p2pool.util import deferral, p2protocol, pack, variable
-class Protocol(bitcoin_p2p.BaseProtocol):
- version = 2
- sub_version = p2pool.__version__
+class PeerMisbehavingError(Exception):
+ pass
+
+
+def fragment(f, **kwargs):
+ try:
+ f(**kwargs)
+ except p2protocol.TooLong:
+ fragment(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
+ fragment(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
+
+class Protocol(p2protocol.Protocol):
+ max_remembered_txs_size = 2500000
- def __init__(self, node):
+ def __init__(self, node, incoming):
+ p2protocol.Protocol.__init__(self, node.net.PREFIX, 1000000, node.traffic_happened)
self.node = node
+ self.incoming = incoming
- self._prefix = self.node.net.PREFIX
-
- max_payload_length = 1000000
- use_checksum = True
-
- other_version = None
- connected2 = False
+ self.other_version = None
+ self.connected2 = False
def connectionMade(self):
- bitcoin_p2p.BaseProtocol.connectionMade(self)
+ self.factory.proto_made_connection(self)
+
+ self.connection_lost_event = variable.Event()
self.addr = self.transport.getPeer().host, self.transport.getPeer().port
self.send_version(
- version=self.version,
+ version=1300,
services=0,
addr_to=dict(
services=0,
port=self.transport.getHost().port,
),
nonce=self.node.nonce,
- sub_version=self.sub_version,
+ sub_version=p2pool.__version__,
mode=1,
- best_share_hash=self.node.current_work.value['best_share_hash'],
+ best_share_hash=self.node.best_share_hash_func(),
)
- reactor.callLater(10, self._connect_timeout)
- self.timeout_delayed = reactor.callLater(100, self._timeout)
+ self.timeout_delayed = reactor.callLater(10, self._connect_timeout)
+
+ self.get_shares = deferral.GenericDeferrer(
+ max_id=2**256,
+ func=lambda id, hashes, parents, stops: self.send_sharereq(id=id, hashes=hashes, parents=parents, stops=stops),
+ timeout=15,
+ on_timeout=self.disconnect,
+ )
+
+ self.remote_tx_hashes = set() # view of peer's known_txs # not actually initially empty, but sending txs instead of tx hashes won't hurt
+ self.remote_remembered_txs_size = 0
+
+ self.remembered_txs = {} # view of peer's mining_txs
+ self.remembered_txs_size = 0
+ self.known_txs_cache = {}
def _connect_timeout(self):
- if not self.connected2 and self.transport.connected:
- print 'Handshake timed out, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
-
- def gotPacket(self):
- if not self.timeout_delayed.called:
- self.timeout_delayed.cancel()
- self.timeout_delayed = reactor.callLater(100, self._timeout)
+ self.timeout_delayed = None
+ print 'Handshake timed out, disconnecting from %s:%i' % self.addr
+ self.disconnect()
+
+ def packetReceived(self, command, payload2):
+ try:
+ if command != 'version' and not self.connected2:
+ raise PeerMisbehavingError('first message was not version message')
+ p2protocol.Protocol.packetReceived(self, command, payload2)
+ except PeerMisbehavingError, e:
+ print 'Peer %s:%i misbehaving, will drop and ban. Reason:' % self.addr, e.message
+ self.badPeerHappened()
+
+ def badPeerHappened(self):
+ if p2pool.DEBUG:
+ print "Bad peer banned:", self.addr
+ self.disconnect()
+ if self.transport.getPeer().host != '127.0.0.1': # never ban localhost
+ self.node.bans[self.transport.getPeer().host] = time.time() + 60*60
def _timeout(self):
- if self.transport.connected:
- print 'Connection timed out, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
+ self.timeout_delayed = None
+ print 'Connection timed out, disconnecting from %s:%i' % self.addr
+ self.disconnect()
- @defer.inlineCallbacks
- def _think(self):
- while self.connected2:
- self.send_ping()
- yield deferral.sleep(random.expovariate(1/100))
-
- @defer.inlineCallbacks
- def _think2(self):
- while self.connected2:
- self.send_addrme(port=self.node.port)
- #print 'sending addrme'
- yield deferral.sleep(random.expovariate(1/(100*len(self.node.peers) + 1)))
-
- message_version = bitcoin_data.ComposedType([
- ('version', bitcoin_data.StructType('<I')),
- ('services', bitcoin_data.StructType('<Q')),
+ message_version = pack.ComposedType([
+ ('version', pack.IntType(32)),
+ ('services', pack.IntType(64)),
('addr_to', bitcoin_data.address_type),
('addr_from', bitcoin_data.address_type),
- ('nonce', bitcoin_data.StructType('<Q')),
- ('sub_version', bitcoin_data.VarStrType()),
- ('mode', bitcoin_data.StructType('<I')), # always 1 for legacy compatibility
- ('best_share_hash', bitcoin_data.PossiblyNoneType(0, bitcoin_data.HashType())),
+ ('nonce', pack.IntType(64)),
+ ('sub_version', pack.VarStrType()),
+ ('mode', pack.IntType(32)), # always 1 for legacy compatibility
+ ('best_share_hash', pack.PossiblyNoneType(0, pack.IntType(256))),
])
def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
+ if self.other_version is not None:
+ raise PeerMisbehavingError('more than one version message')
+ if version < 1300:
+ raise PeerMisbehavingError('peer too old')
+
self.other_version = version
self.other_sub_version = sub_version[:512]
self.other_services = services
if nonce == self.node.nonce:
- #print 'Detected connection to self, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
- return
+ raise PeerMisbehavingError('was connected to self')
if nonce in self.node.peers:
- #print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
+ if p2pool.DEBUG:
+ print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
+ self.disconnect()
return
self.nonce = nonce
self.connected2 = True
- self.node.got_conn(self)
- self._think()
- self._think2()
+ self.timeout_delayed.cancel()
+ self.timeout_delayed = reactor.callLater(100, self._timeout)
+
+ old_dataReceived = self.dataReceived
+ def new_dataReceived(data):
+ if self.timeout_delayed is not None:
+ self.timeout_delayed.reset(100)
+ old_dataReceived(data)
+ self.dataReceived = new_dataReceived
+
+ self.factory.proto_connected(self)
+
+ self._stop_thread = deferral.run_repeatedly(lambda: [
+ self.send_ping(),
+ random.expovariate(1/100)][-1])
+
+ self._stop_thread2 = deferral.run_repeatedly(lambda: [
+ self.send_addrme(port=self.node.serverfactory.listen_port.getHost().port) if self.node.serverfactory.listen_port is not None else None,
+ random.expovariate(1/(100*len(self.node.peers) + 1))][-1])
if best_share_hash is not None:
self.node.handle_share_hashes([best_share_hash], self)
+
+ def update_remote_view_of_my_known_txs(before, after):
+ added = set(after) - set(before)
+ removed = set(before) - set(after)
+ if added:
+ self.send_have_tx(tx_hashes=list(added))
+ if removed:
+ self.send_losing_tx(tx_hashes=list(removed))
+
+ # cache forgotten txs here for a little while so latency of "losing_tx" packets doesn't cause problems
+ key = max(self.known_txs_cache) + 1 if self.known_txs_cache else 0
+ self.known_txs_cache[key] = dict((h, before[h]) for h in removed)
+ reactor.callLater(20, self.known_txs_cache.pop, key)
+ watch_id = self.node.known_txs_var.transitioned.watch(update_remote_view_of_my_known_txs)
+ self.connection_lost_event.watch(lambda: self.node.known_txs_var.transitioned.unwatch(watch_id))
+
+ self.send_have_tx(tx_hashes=self.node.known_txs_var.value.keys())
+
+ def update_remote_view_of_my_mining_txs(before, after):
+ added = set(after) - set(before)
+ removed = set(before) - set(after)
+ if added:
+ self.remote_remembered_txs_size += sum(100 + bitcoin_data.tx_type.packed_size(after[x]) for x in added)
+ assert self.remote_remembered_txs_size <= self.max_remembered_txs_size
+ fragment(self.send_remember_tx, tx_hashes=[x for x in added if x in self.remote_tx_hashes], txs=[after[x] for x in added if x not in self.remote_tx_hashes])
+ if removed:
+ self.send_forget_tx(tx_hashes=list(removed))
+ self.remote_remembered_txs_size -= sum(100 + bitcoin_data.tx_type.packed_size(before[x]) for x in removed)
+ watch_id2 = self.node.mining_txs_var.transitioned.watch(update_remote_view_of_my_mining_txs)
+ self.connection_lost_event.watch(lambda: self.node.mining_txs_var.transitioned.unwatch(watch_id2))
+
+ self.remote_remembered_txs_size += sum(100 + bitcoin_data.tx_type.packed_size(x) for x in self.node.mining_txs_var.value.values())
+ assert self.remote_remembered_txs_size <= self.max_remembered_txs_size
+ fragment(self.send_remember_tx, tx_hashes=[], txs=self.node.mining_txs_var.value.values())
- message_ping = bitcoin_data.ComposedType([])
+ message_ping = pack.ComposedType([])
def handle_ping(self):
pass
- message_addrme = bitcoin_data.ComposedType([
- ('port', bitcoin_data.StructType('<H')),
+ message_addrme = pack.ComposedType([
+ ('port', pack.IntType(16)),
])
def handle_addrme(self, port):
host = self.transport.getPeer().host
),
])
- message_addrs = bitcoin_data.ComposedType([
- ('addrs', bitcoin_data.ListType(bitcoin_data.ComposedType([
- ('timestamp', bitcoin_data.StructType('<Q')),
+ message_addrs = pack.ComposedType([
+ ('addrs', pack.ListType(pack.ComposedType([
+ ('timestamp', pack.IntType(64)),
('address', bitcoin_data.address_type),
]))),
])
if random.random() < .8 and self.node.peers:
random.choice(self.node.peers.values()).send_addrs(addrs=[addr_record])
- message_getaddrs = bitcoin_data.ComposedType([
- ('count', bitcoin_data.StructType('<I')),
+ message_getaddrs = pack.ComposedType([
+ ('count', pack.IntType(32)),
])
def handle_getaddrs(self, count):
if count > 100:
count = 100
self.send_addrs(addrs=[
dict(
- timestamp=self.node.addr_store[host, port][2],
+ timestamp=int(self.node.addr_store[host, port][2]),
address=dict(
services=self.node.addr_store[host, port][0],
address=host,
self.node.get_good_peers(count)
])
- message_getshares = bitcoin_data.ComposedType([
- ('hashes', bitcoin_data.ListType(bitcoin_data.HashType())),
- ('parents', bitcoin_data.VarIntType()),
- ('stops', bitcoin_data.ListType(bitcoin_data.HashType())),
- ])
- def handle_getshares(self, hashes, parents, stops):
- self.node.handle_get_shares(hashes, parents, stops, self)
-
- message_shares = bitcoin_data.ComposedType([
- ('shares', bitcoin_data.ListType(p2pool_data.share_type)),
+ message_shares = pack.ComposedType([
+ ('shares', pack.ListType(p2pool_data.share_type)),
])
def handle_shares(self, shares):
- res = []
+ result = []
+ for wrappedshare in shares:
+ if wrappedshare['type'] < 9: continue
+ share = p2pool_data.load_share(wrappedshare, self.node.net, self.addr)
+ if wrappedshare['type'] >= 13:
+ txs = []
+ for tx_hash in share.share_info['new_transaction_hashes']:
+ if tx_hash in self.node.known_txs_var.value:
+ tx = self.node.known_txs_var.value[tx_hash]
+ else:
+ for cache in self.known_txs_cache.itervalues():
+ if tx_hash in cache:
+ tx = cache[tx_hash]
+ print 'Transaction %064x rescued from peer latency cache!' % (tx_hash,)
+ break
+ else:
+ print >>sys.stderr, 'Peer referenced unknown transaction %064x, disconnecting' % (tx_hash,)
+ self.disconnect()
+ return
+ txs.append(tx)
+ else:
+ txs = None
+
+ result.append((share, txs))
+
+ self.node.handle_shares(result, self)
+
+ def sendShares(self, shares, tracker, known_txs, include_txs_with=[]):
+ tx_hashes = set()
for share in shares:
- share_obj = p2pool_data.Share.from_share(share, self.node.net)
- share_obj.peer = self
- res.append(share_obj)
- self.node.handle_shares(res)
-
- def sendShares(self, shares, full=False):
- def att(f, **kwargs):
- try:
- f(**kwargs)
- except bitcoin_p2p.TooLong:
- att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
- att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
- if shares:
- att(self.send_shares, shares=[share.as_share() for share in shares])
+ if share.VERSION >= 13:
+ # send full transaction for every new_transaction_hash that peer does not know
+ for tx_hash in share.share_info['new_transaction_hashes']:
+ assert tx_hash in known_txs, 'tried to broadcast share without knowing all its new transactions'
+ if tx_hash not in self.remote_tx_hashes:
+ tx_hashes.add(tx_hash)
+ continue
+ if share.hash in include_txs_with:
+ x = share.get_other_tx_hashes(tracker)
+ if x is not None:
+ tx_hashes.update(x)
+
+ hashes_to_send = [x for x in tx_hashes if x not in self.node.mining_txs_var.value and x in known_txs]
+
+ new_remote_remembered_txs_size = self.remote_remembered_txs_size + sum(100 + bitcoin_data.tx_type.packed_size(known_txs[x]) for x in hashes_to_send)
+ if new_remote_remembered_txs_size > self.max_remembered_txs_size:
+ raise ValueError('shares have too many txs')
+ self.remote_remembered_txs_size = new_remote_remembered_txs_size
+
+ fragment(self.send_remember_tx, tx_hashes=[x for x in hashes_to_send if x in self.remote_tx_hashes], txs=[known_txs[x] for x in hashes_to_send if x not in self.remote_tx_hashes])
+
+ fragment(self.send_shares, shares=[share.as_share() for share in shares])
+
+ self.send_forget_tx(tx_hashes=hashes_to_send)
+
+ self.remote_remembered_txs_size -= sum(100 + bitcoin_data.tx_type.packed_size(known_txs[x]) for x in hashes_to_send)
+
+
+ message_sharereq = pack.ComposedType([
+ ('id', pack.IntType(256)),
+ ('hashes', pack.ListType(pack.IntType(256))),
+ ('parents', pack.VarIntType()),
+ ('stops', pack.ListType(pack.IntType(256))),
+ ])
+ def handle_sharereq(self, id, hashes, parents, stops):
+ shares = self.node.handle_get_shares(hashes, parents, stops, self)
+ try:
+ self.send_sharereply(id=id, result='good', shares=[share.as_share() for share in shares])
+ except p2protocol.TooLong:
+ self.send_sharereply(id=id, result='too long', shares=[])
+
+ message_sharereply = pack.ComposedType([
+ ('id', pack.IntType(256)),
+ ('result', pack.EnumType(pack.VarIntType(), {0: 'good', 1: 'too long', 2: 'unk2', 3: 'unk3', 4: 'unk4', 5: 'unk5', 6: 'unk6'})),
+ ('shares', pack.ListType(p2pool_data.share_type)),
+ ])
+ def handle_sharereply(self, id, result, shares):
+ if result == 'good':
+ res = [p2pool_data.load_share(share, self.node.net, self.addr) for share in shares if share['type'] >= 9]
+ else:
+ res = failure.Failure("sharereply result: " + result)
+ self.get_shares.got_response(id, res)
+
+
+ message_bestblock = pack.ComposedType([
+ ('header', bitcoin_data.block_header_type),
+ ])
+ def handle_bestblock(self, header):
+ self.node.handle_bestblock(header, self)
+
+
+ message_have_tx = pack.ComposedType([
+ ('tx_hashes', pack.ListType(pack.IntType(256))),
+ ])
+ def handle_have_tx(self, tx_hashes):
+ #assert self.remote_tx_hashes.isdisjoint(tx_hashes)
+ self.remote_tx_hashes.update(tx_hashes)
+ while len(self.remote_tx_hashes) > 10000:
+ self.remote_tx_hashes.pop()
+ message_losing_tx = pack.ComposedType([
+ ('tx_hashes', pack.ListType(pack.IntType(256))),
+ ])
+ def handle_losing_tx(self, tx_hashes):
+ #assert self.remote_tx_hashes.issuperset(tx_hashes)
+ self.remote_tx_hashes.difference_update(tx_hashes)
+
+
+ message_remember_tx = pack.ComposedType([
+ ('tx_hashes', pack.ListType(pack.IntType(256))),
+ ('txs', pack.ListType(bitcoin_data.tx_type)),
+ ])
+ def handle_remember_tx(self, tx_hashes, txs):
+ for tx_hash in tx_hashes:
+ if tx_hash in self.remembered_txs:
+ print >>sys.stderr, 'Peer referenced transaction twice, disconnecting'
+ self.disconnect()
+ return
+
+ if tx_hash in self.node.known_txs_var.value:
+ tx = self.node.known_txs_var.value[tx_hash]
+ else:
+ for cache in self.known_txs_cache.itervalues():
+ if tx_hash in cache:
+ tx = cache[tx_hash]
+ print 'Transaction %064x rescued from peer latency cache!' % (tx_hash,)
+ break
+ else:
+ print >>sys.stderr, 'Peer referenced unknown transaction %064x, disconnecting' % (tx_hash,)
+ self.disconnect()
+ return
+
+ self.remembered_txs[tx_hash] = tx
+ self.remembered_txs_size += 100 + bitcoin_data.tx_type.packed_size(tx)
+ new_known_txs = dict(self.node.known_txs_var.value)
+ warned = False
+ for tx in txs:
+ tx_hash = bitcoin_data.hash256(bitcoin_data.tx_type.pack(tx))
+ if tx_hash in self.remembered_txs:
+ print >>sys.stderr, 'Peer referenced transaction twice, disconnecting'
+ self.disconnect()
+ return
+
+ if tx_hash in self.node.known_txs_var.value and not warned:
+ print 'Peer sent entire transaction %064x that was already received' % (tx_hash,)
+ warned = True
+
+ self.remembered_txs[tx_hash] = tx
+ self.remembered_txs_size += 100 + bitcoin_data.tx_type.packed_size(tx)
+ new_known_txs[tx_hash] = tx
+ self.node.known_txs_var.set(new_known_txs)
+ if self.remembered_txs_size >= self.max_remembered_txs_size:
+ raise PeerMisbehavingError('too much transaction data stored')
+ message_forget_tx = pack.ComposedType([
+ ('tx_hashes', pack.ListType(pack.IntType(256))),
+ ])
+ def handle_forget_tx(self, tx_hashes):
+ for tx_hash in tx_hashes:
+ self.remembered_txs_size -= 100 + bitcoin_data.tx_type.packed_size(self.remembered_txs[tx_hash])
+ assert self.remembered_txs_size >= 0
+ del self.remembered_txs[tx_hash]
+
def connectionLost(self, reason):
+ self.connection_lost_event.happened()
+ if self.timeout_delayed is not None:
+ self.timeout_delayed.cancel()
if self.connected2:
- self.node.lost_conn(self)
+ self.factory.proto_disconnected(self, reason)
+ self._stop_thread()
+ self._stop_thread2()
+ self.connected2 = False
+ self.factory.proto_lost_connection(self, reason)
+ if p2pool.DEBUG:
+ print "Peer connection lost:", self.addr, reason
+ self.get_shares.respond_all(reason)
+
+ @defer.inlineCallbacks
+ def do_ping(self):
+ start = reactor.seconds()
+ yield self.get_shares(hashes=[0], parents=0, stops=[])
+ end = reactor.seconds()
+ defer.returnValue(end - start)
class ServerFactory(protocol.ServerFactory):
- def __init__(self, node):
+ def __init__(self, node, max_conns):
self.node = node
+ self.max_conns = max_conns
+
+ self.conns = {}
+ self.running = False
+ self.listen_port = None
def buildProtocol(self, addr):
- p = Protocol(self.node)
+ if sum(self.conns.itervalues()) >= self.max_conns or self.conns.get(self._host_to_ident(addr.host), 0) >= 3:
+ return None
+ if addr.host in self.node.bans and self.node.bans[addr.host] > time.time():
+ return None
+ p = Protocol(self.node, True)
p.factory = self
+ if p2pool.DEBUG:
+ print "Got peer connection from:", addr
return p
+
+ def _host_to_ident(self, host):
+ a, b, c, d = host.split('.')
+ return a, b
+
+ def proto_made_connection(self, proto):
+ ident = self._host_to_ident(proto.transport.getPeer().host)
+ self.conns[ident] = self.conns.get(ident, 0) + 1
+ def proto_lost_connection(self, proto, reason):
+ ident = self._host_to_ident(proto.transport.getPeer().host)
+ self.conns[ident] -= 1
+ if not self.conns[ident]:
+ del self.conns[ident]
+
+ def proto_connected(self, proto):
+ self.node.got_conn(proto)
+ def proto_disconnected(self, proto, reason):
+ self.node.lost_conn(proto, reason)
+
+ def start(self):
+ assert not self.running
+ self.running = True
+
+ def attempt_listen():
+ if self.running:
+ self.listen_port = reactor.listenTCP(self.node.port, self)
+ deferral.retry('Error binding to P2P port:', traceback=False)(attempt_listen)()
+
+ def stop(self):
+ assert self.running
+ self.running = False
+
+ return self.listen_port.stopListening()
class ClientFactory(protocol.ClientFactory):
- def __init__(self, node):
+ def __init__(self, node, desired_conns, max_attempts):
self.node = node
+ self.desired_conns = desired_conns
+ self.max_attempts = max_attempts
+
+ self.attempts = set()
+ self.conns = set()
+ self.running = False
+
+ def _host_to_ident(self, host):
+ a, b, c, d = host.split('.')
+ return a, b
def buildProtocol(self, addr):
- p = Protocol(self.node)
+ p = Protocol(self.node, False)
p.factory = self
return p
def startedConnecting(self, connector):
- self.node.attempt_started(connector)
+ ident = self._host_to_ident(connector.getDestination().host)
+ if ident in self.attempts:
+ raise AssertionError('already have attempt')
+ self.attempts.add(ident)
def clientConnectionFailed(self, connector, reason):
- self.node.attempt_failed(connector)
+ self.attempts.remove(self._host_to_ident(connector.getDestination().host))
def clientConnectionLost(self, connector, reason):
- self.node.attempt_ended(connector)
+ self.attempts.remove(self._host_to_ident(connector.getDestination().host))
+
+ def proto_made_connection(self, proto):
+ pass
+ def proto_lost_connection(self, proto, reason):
+ pass
+
+ def proto_connected(self, proto):
+ self.conns.add(proto)
+ self.node.got_conn(proto)
+ def proto_disconnected(self, proto, reason):
+ self.conns.remove(proto)
+ self.node.lost_conn(proto, reason)
+
+ def start(self):
+ assert not self.running
+ self.running = True
+ self._stop_thinking = deferral.run_repeatedly(self._think)
+ def stop(self):
+ assert self.running
+ self.running = False
+ self._stop_thinking()
+
+ def _think(self):
+ try:
+ if len(self.conns) < self.desired_conns and len(self.attempts) < self.max_attempts and self.node.addr_store:
+ (host, port), = self.node.get_good_peers(1)
+
+ if self._host_to_ident(host) in self.attempts:
+ pass
+ elif host in self.node.bans and self.node.bans[host] > time.time():
+ pass
+ else:
+ #print 'Trying to connect to', host, port
+ reactor.connectTCP(host, port, self, timeout=5)
+ except:
+ log.err()
+
+ return random.expovariate(1/1)
+
+class SingleClientFactory(protocol.ReconnectingClientFactory):
+ def __init__(self, node):
+ self.node = node
+
+ def buildProtocol(self, addr):
+ p = Protocol(self.node, incoming=False)
+ p.factory = self
+ return p
+
+ def proto_made_connection(self, proto):
+ pass
+ def proto_lost_connection(self, proto, reason):
+ pass
+
+ def proto_connected(self, proto):
+ self.resetDelay()
+ self.node.got_conn(proto)
+ def proto_disconnected(self, proto, reason):
+ self.node.lost_conn(proto, reason)
class Node(object):
- def __init__(self, current_work, port, net, addr_store=None, preferred_addrs=set(), desired_peers=10, max_attempts=30, preferred_storage=1000):
- if addr_store is None:
- addr_store = {}
-
+ 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, known_txs_var=variable.Variable({}), mining_txs_var=variable.Variable({})):
+ self.best_share_hash_func = best_share_hash_func
self.port = port
self.net = net
- self.addr_store = addr_store
- self.preferred_addrs = preferred_addrs
- self.desired_peers = desired_peers
- self.max_attempts = max_attempts
- self.current_work = current_work
+ self.addr_store = dict(addr_store)
+ self.connect_addrs = connect_addrs
self.preferred_storage = preferred_storage
+ self.known_txs_var = known_txs_var
+ self.mining_txs_var = mining_txs_var
+ self.traffic_happened = variable.Event()
self.nonce = random.randrange(2**64)
- self.attempts = {}
self.peers = {}
+ self.bans = {} # address -> end_time
+ self.clientfactory = ClientFactory(self, desired_outgoing_conns, max_outgoing_attempts)
+ self.serverfactory = ServerFactory(self, max_incoming_conns)
self.running = False
def start(self):
if self.running:
raise ValueError('already running')
- self.running = True
+ self.clientfactory.start()
+ self.serverfactory.start()
+ self.singleclientconnectors = [reactor.connectTCP(addr, port, SingleClientFactory(self)) for addr, port in self.connect_addrs]
- self.listen_port = reactor.listenTCP(self.port, ServerFactory(self))
+ self.running = True
- self._think()
- self._think2()
+ self._stop_thinking = deferral.run_repeatedly(self._think)
- @defer.inlineCallbacks
def _think(self):
- while self.running:
- try:
- if len(self.peers) < self.desired_peers and len(self.attempts) < self.max_attempts and (len(self.preferred_addrs) or len(self.addr_store)):
- if (random.randrange(2) and len(self.preferred_addrs)) or not len(self.addr_store):
- host, port = random.choice(list(self.preferred_addrs))
- else:
- (host, port), = self.get_good_peers(1)
-
- if (host, port) not in self.attempts:
- #print 'Trying to connect to', host, port
- reactor.connectTCP(host, port, ClientFactory(self), timeout=5)
- except:
- log.err()
-
- yield deferral.sleep(random.expovariate(1/1))
+ try:
+ if len(self.addr_store) < self.preferred_storage and self.peers:
+ random.choice(self.peers.values()).send_getaddrs(count=8)
+ except:
+ log.err()
+
+ return random.expovariate(1/20)
@defer.inlineCallbacks
- def _think2(self):
- while self.running:
- try:
- if len(self.addr_store) < self.preferred_storage and self.peers:
- random.choice(self.peers.values()).send_getaddrs(count=8)
- except:
- log.err()
-
- yield deferral.sleep(random.expovariate(1/20))
-
def stop(self):
if not self.running:
raise ValueError('already stopped')
self.running = False
- self.listen_port.stopListening()
-
-
- def attempt_started(self, connector):
- host, port = connector.getDestination().host, connector.getDestination().port
- if (host, port) in self.attempts:
- raise ValueError('already have attempt')
- self.attempts[host, port] = connector
-
- def attempt_failed(self, connector):
- self.attempt_ended(connector)
-
- def attempt_ended(self, connector):
- host, port = connector.getDestination().host, connector.getDestination().port
- if (host, port) not in self.attempts:
- raise ValueError('''don't have attempt''')
- if connector is not self.attempts[host, port]:
- raise ValueError('wrong connector')
- del self.attempts[host, port]
-
+ self._stop_thinking()
+ yield self.clientfactory.stop()
+ yield self.serverfactory.stop()
+ for singleclientconnector in self.singleclientconnectors:
+ yield singleclientconnector.factory.stopTrying()
+ yield singleclientconnector.disconnect()
+ del self.singleclientconnectors
def got_conn(self, conn):
if conn.nonce in self.peers:
raise ValueError('already have peer')
self.peers[conn.nonce] = conn
- print 'Connected to peer %s:%i. p2pool version: %r' % (conn.addr[0], conn.addr[1], conn.other_sub_version)
+ 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)
- def lost_conn(self, conn):
+ def lost_conn(self, conn, reason):
if conn.nonce not in self.peers:
raise ValueError('''don't have peer''')
if conn is not self.peers[conn.nonce]:
raise ValueError('wrong conn')
del self.peers[conn.nonce]
- print 'Lost peer %s:%i' % (conn.addr[0], conn.addr[1])
+ print 'Lost peer %s:%i - %s' % (conn.addr[0], conn.addr[1], reason.getErrorMessage())
def got_addr(self, (host, port), services, timestamp):
old_services, old_first_seen, old_last_seen = self.addr_store[host, port]
self.addr_store[host, port] = services, old_first_seen, max(old_last_seen, timestamp)
else:
- self.addr_store[host, port] = services, timestamp, timestamp
+ if len(self.addr_store) < 10000:
+ self.addr_store[host, port] = services, timestamp, timestamp
def handle_shares(self, shares, peer):
print 'handle_shares', (shares, peer)
def handle_get_shares(self, hashes, parents, stops, peer):
print 'handle_get_shares', (hashes, parents, stops, peer)
+ def handle_bestblock(self, header, peer):
+ print 'handle_bestblock', header
+
def get_good_peers(self, max_count):
t = time.time()
- 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]
-
-if __name__ == '__main__':
- p = random.randrange(2**15, 2**16)
- for i in xrange(5):
- p2 = random.randrange(2**15, 2**16)
- print p, p2
- 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())))})
- n.start()
- p = p2
-
- reactor.run()
+ return [x[0] for x in sorted(self.addr_store.iteritems(), key=lambda (k, (services, first_seen, last_seen)):
+ -math.log(max(3600, last_seen - first_seen))/math.log(max(3600, t - last_seen))*random.expovariate(1)
+ )][:max_count]
git://git.novaco.in / p2pool.git / blobdiff