import math
import random
+import sys
import time
from twisted.internet import defer, protocol, reactor
try:
return f(**kwargs)
except p2protocol.TooLong:
- att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
- return att(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()))
+ return fragment(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
class Protocol(p2protocol.Protocol):
max_remembered_txs_size = 2500000
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=removed)
+ self.send_forget_tx(tx_hashes=list(removed))
self.remote_remembered_txs_size -= sum(len(bitcoin_data.tx_type.pack(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))
('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)
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)
])
def handle_remember_tx(self, tx_hashes, txs):
for tx_hash in tx_hashes:
- if tx_hash not in self.remembered_txs:
- if tx_hash in self.node.known_txs_var.value:
- tx = self.node.known_txs_var.value[tx_hash]
+ if tx_hash in self.remembered_txs:
+ print >>sys.stderr, 'Peer referenced transaction twice, disconnecting'
+ self.transport.loseConnection()
+ 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 rescued from peer latency cache!'
+ break
else:
- for cache in self.known_txs_cache.itervalues():
- if tx_hash in cache:
- tx = cache[tx_hash]
- print 'Transaction rescued from peer latency cache!'
- break
- else:
- print >>sys.stderr, 'Peer referenced unknown transaction, disconnecting'
- self.transport.loseConnection()
- return
-
- self.remembered_txs[tx_hash] = tx
- self.remembered_txs_size += len(bitcoin_data.tx_type.pack(tx))
+ print >>sys.stderr, 'Peer referenced unknown transaction, disconnecting'
+ self.transport.loseConnection()
+ return
+
+ self.remembered_txs[tx_hash] = tx
+ self.remembered_txs_size += len(bitcoin_data.tx_type.pack(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 not in self.remembered_txs:
- self.remembered_txs[tx_hash] = tx
- self.remembered_txs_size += len(bitcoin_data.tx_type.pack(tx))
+ if tx_hash in self.remembered_txs:
+ print >>sys.stderr, 'Peer referenced transaction twice, disconnecting'
+ self.transport.loseConnection()
+ return
+
+ if tx_hash in self.node.known_txs_var.value and not warned:
+ print 'Peer sent entire transaction that was already received'
+ warned = True
+
+ self.remembered_txs[tx_hash] = tx
+ self.remembered_txs_size += len(bitcoin_data.tx_type.pack(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:
self.node.lost_conn(proto, reason)
class Node(object):
- 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, traffic_happened=variable.Event(), known_txs_var=variable.Variable({}), mining_txs_var=variable.Variable({})):
+ 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 = dict(addr_store)
self.connect_addrs = connect_addrs
self.preferred_storage = preferred_storage
- self.traffic_happened = traffic_happened
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.peers = {}
self.bans = {} # address -> end_time