cis-kuldeep/PyBitmessage-2021-04-27
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Fix #662 - 'PyBitmessage does not wait for verack'

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This commit is contained in:
Jonathan Warren 2014-04-30 15:39:25 -04:00
parent 12d131f7f2
commit 22934441dc
3 changed files with 105 additions and 107 deletions
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125
src/class_receiveDataThread.py
View File

@ -147,9 +147,9 @@ class receiveDataThread(threading.Thread):
with shared.printLock: with shared.printLock:
print 'remoteCommand', repr(remoteCommand.replace('\x00', '')), ' from', self.peer print 'remoteCommand', repr(remoteCommand.replace('\x00', '')), ' from', self.peer
if remoteCommand == 'version\x00\x00\x00\x00\x00': if remoteCommand == 'version\x00\x00\x00\x00\x00' and not self.connectionIsOrWasFullyEstablished:
self.recversion(self.data[24:self.payloadLength + 24]) self.recversion(self.data[24:self.payloadLength + 24])
elif remoteCommand == 'verack\x00\x00\x00\x00\x00\x00': elif remoteCommand == 'verack\x00\x00\x00\x00\x00\x00' and not self.connectionIsOrWasFullyEstablished:
self.recverack() self.recverack()
elif remoteCommand == 'addr\x00\x00\x00\x00\x00\x00\x00\x00' and self.connectionIsOrWasFullyEstablished: elif remoteCommand == 'addr\x00\x00\x00\x00\x00\x00\x00\x00' and self.connectionIsOrWasFullyEstablished:
self.recaddr(self.data[24:self.payloadLength + 24]) self.recaddr(self.data[24:self.payloadLength + 24])
@ -237,7 +237,12 @@ class receiveDataThread(threading.Thread):
self.connectionFullyEstablished() self.connectionFullyEstablished()
def connectionFullyEstablished(self): def connectionFullyEstablished(self):
if self.connectionIsOrWasFullyEstablished:
# there is no reason to run this function a second time
return
self.connectionIsOrWasFullyEstablished = True self.connectionIsOrWasFullyEstablished = True
# Command the corresponding sendDataThread to set its own connectionIsOrWasFullyEstablished variable to True also
self.sendDataThreadQueue.put((0, 'connectionIsOrWasFullyEstablished', 'no data'))
if not self.initiatedConnection: if not self.initiatedConnection:
shared.clientHasReceivedIncomingConnections = True shared.clientHasReceivedIncomingConnections = True
shared.UISignalQueue.put(('setStatusIcon', 'green')) shared.UISignalQueue.put(('setStatusIcon', 'green'))
@ -301,8 +306,9 @@ class receiveDataThread(threading.Thread):
self.sendinvMessageToJustThisOnePeer( self.sendinvMessageToJustThisOnePeer(
numberOfObjectsInInvMessage, payload) numberOfObjectsInInvMessage, payload)
# Self explanatory. Notice that there is also a broadcastinv function for # Used to send a big inv message when the connection with a node is
# broadcasting invs to everyone in our stream. # first fully established. Notice that there is also a broadcastinv
# function for broadcasting invs to everyone in our stream.
def sendinvMessageToJustThisOnePeer(self, numberOfObjects, payload): def sendinvMessageToJustThisOnePeer(self, numberOfObjects, payload):
payload = encodeVarint(numberOfObjects) + payload payload = encodeVarint(numberOfObjects) + payload
headerData = '\xe9\xbe\xb4\xd9' # magic bits, slighly different from Bitcoin's magic bits. headerData = '\xe9\xbe\xb4\xd9' # magic bits, slighly different from Bitcoin's magic bits.
@ -665,7 +671,10 @@ class receiveDataThread(threading.Thread):
print 'knownNodes currently has', len(shared.knownNodes[self.streamNumber]), 'nodes for this stream.' print 'knownNodes currently has', len(shared.knownNodes[self.streamNumber]), 'nodes for this stream.'
# Send a big addr message to our peer # Send a huge addr message to our peer. This is only used
# when we fully establish a connection with a
# peer (with the full exchange of version and verack
# messages).
def sendaddr(self): def sendaddr(self):
addrsInMyStream = {} addrsInMyStream = {}
addrsInChildStreamLeft = {} addrsInChildStreamLeft = {}
@ -750,58 +759,68 @@ class receiveDataThread(threading.Thread):
if len(data) < 83: if len(data) < 83:
# This version message is unreasonably short. Forget it. # This version message is unreasonably short. Forget it.
return return
elif not self.verackSent: if self.verackSent:
self.remoteProtocolVersion, = unpack('>L', data[:4]) """
if self.remoteProtocolVersion <= 1: We must have already processed the remote node's version message.
shared.broadcastToSendDataQueues((0, 'shutdown', self.peer)) There might be a time in the future when we Do want to process
with shared.printLock: a new version message, like if the remote node wants to update
print 'Closing connection to old protocol version 1 node: ', self.peer the streams in which they are interested. But for now we'll
return ignore this version message
# print 'remoteProtocolVersion', self.remoteProtocolVersion """
self.myExternalIP = socket.inet_ntoa(data[40:44]) return
# print 'myExternalIP', self.myExternalIP self.remoteProtocolVersion, = unpack('>L', data[:4])
self.remoteNodeIncomingPort, = unpack('>H', data[70:72]) if self.remoteProtocolVersion <= 1:
# print 'remoteNodeIncomingPort', self.remoteNodeIncomingPort shared.broadcastToSendDataQueues((0, 'shutdown', self.peer))
useragentLength, lengthOfUseragentVarint = decodeVarint(
data[80:84])
readPosition = 80 + lengthOfUseragentVarint
useragent = data[readPosition:readPosition + useragentLength]
readPosition += useragentLength
numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint(
data[readPosition:])
readPosition += lengthOfNumberOfStreamsInVersionMessage
self.streamNumber, lengthOfRemoteStreamNumber = decodeVarint(
data[readPosition:])
with shared.printLock: with shared.printLock:
print 'Remote node useragent:', useragent, ' stream number:', self.streamNumber print 'Closing connection to old protocol version 1 node: ', self.peer
return
# print 'remoteProtocolVersion', self.remoteProtocolVersion
self.myExternalIP = socket.inet_ntoa(data[40:44])
# print 'myExternalIP', self.myExternalIP
self.remoteNodeIncomingPort, = unpack('>H', data[70:72])
# print 'remoteNodeIncomingPort', self.remoteNodeIncomingPort
useragentLength, lengthOfUseragentVarint = decodeVarint(
data[80:84])
readPosition = 80 + lengthOfUseragentVarint
useragent = data[readPosition:readPosition + useragentLength]
readPosition += useragentLength
numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint(
data[readPosition:])
readPosition += lengthOfNumberOfStreamsInVersionMessage
self.streamNumber, lengthOfRemoteStreamNumber = decodeVarint(
data[readPosition:])
with shared.printLock:
print 'Remote node useragent:', useragent, ' stream number:', self.streamNumber
if self.streamNumber != 1: if self.streamNumber != 1:
shared.broadcastToSendDataQueues((0, 'shutdown', self.peer)) shared.broadcastToSendDataQueues((0, 'shutdown', self.peer))
with shared.printLock: with shared.printLock:
print 'Closed connection to', self.peer, 'because they are interested in stream', self.streamNumber, '.' print 'Closed connection to', self.peer, 'because they are interested in stream', self.streamNumber, '.'
return return
shared.connectedHostsList[ shared.connectedHostsList[
self.peer.host] = 1 # We use this data structure to not only keep track of what hosts we are connected to so that we don't try to connect to them again, but also to list the connections count on the Network Status tab. self.peer.host] = 1 # We use this data structure to not only keep track of what hosts we are connected to so that we don't try to connect to them again, but also to list the connections count on the Network Status tab.
# If this was an incoming connection, then the sendData thread # If this was an incoming connection, then the sendData thread
# doesn't know the stream. We have to set it. # doesn't know the stream. We have to set it.
if not self.initiatedConnection: if not self.initiatedConnection:
shared.broadcastToSendDataQueues(( self.sendDataThreadQueue.put((0, 'setStreamNumber', self.streamNumber))
0, 'setStreamNumber', (self.peer, self.streamNumber))) if data[72:80] == shared.eightBytesOfRandomDataUsedToDetectConnectionsToSelf:
if data[72:80] == shared.eightBytesOfRandomDataUsedToDetectConnectionsToSelf: shared.broadcastToSendDataQueues((0, 'shutdown', self.peer))
shared.broadcastToSendDataQueues((0, 'shutdown', self.peer)) with shared.printLock:
with shared.printLock: print 'Closing connection to myself: ', self.peer
print 'Closing connection to myself: ', self.peer return
return
self.sendDataThreadQueue.put((0, 'setRemoteProtocolVersion', self.remoteProtocolVersion)) # The other peer's protocol version is of interest to the sendDataThread but we learn of it
# in this version message. Let us inform the sendDataThread.
self.sendDataThreadQueue.put((0, 'setRemoteProtocolVersion', self.remoteProtocolVersion))
shared.knownNodesLock.acquire() shared.knownNodesLock.acquire()
shared.knownNodes[self.streamNumber][shared.Peer(self.peer.host, self.remoteNodeIncomingPort)] = int(time.time()) shared.knownNodes[self.streamNumber][shared.Peer(self.peer.host, self.remoteNodeIncomingPort)] = int(time.time())
shared.needToWriteKnownNodesToDisk = True shared.needToWriteKnownNodesToDisk = True
shared.knownNodesLock.release() shared.knownNodesLock.release()
self.sendverack() self.sendverack()
if self.initiatedConnection == False: if self.initiatedConnection == False:
self.sendversion() self.sendversion()
# Sends a version message # Sends a version message
def sendversion(self): def sendversion(self):

65
src/class_sendDataThread.py
View File

@ -25,6 +25,7 @@ class sendDataThread(threading.Thread):
self.data = '' self.data = ''
self.objectHashHolderInstance = objectHashHolder(self.sendDataThreadQueue) self.objectHashHolderInstance = objectHashHolder(self.sendDataThreadQueue)
self.objectHashHolderInstance.start() self.objectHashHolderInstance.start()
self.connectionIsOrWasFullyEstablished = False
def setup( def setup(
@ -71,16 +72,6 @@ class sendDataThread(threading.Thread):
if data == self.peer or data == 'all': if data == self.peer or data == 'all':
with shared.printLock: with shared.printLock:
print 'sendDataThread (associated with', self.peer, ') ID:', id(self), 'shutting down now.' print 'sendDataThread (associated with', self.peer, ') ID:', id(self), 'shutting down now.'
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
with shared.printLock:
print 'len of sendDataQueues', len(shared.sendDataQueues)
break break
# When you receive an incoming connection, a sendDataThread is # When you receive an incoming connection, a sendDataThread is
# created even though you don't yet know what stream number the # created even though you don't yet know what stream number the
@ -89,12 +80,9 @@ class sendDataThread(threading.Thread):
# will continue on with the connection and will set the # will continue on with the connection and will set the
# streamNumber of this send data thread here: # streamNumber of this send data thread here:
elif command == 'setStreamNumber': elif command == 'setStreamNumber':
peerInMessage, specifiedStreamNumber = data self.streamNumber = data
if peerInMessage == self.peer: with shared.printLock:
with shared.printLock: print 'setting the stream number in the sendData thread (ID:', id(self), ') to', self.streamNumber
print 'setting the stream number in the sendData thread (ID:', id(self), ') to', specifiedStreamNumber
self.streamNumber = specifiedStreamNumber
elif command == 'setRemoteProtocolVersion': elif command == 'setRemoteProtocolVersion':
specifiedRemoteProtocolVersion = data specifiedRemoteProtocolVersion = data
with shared.printLock: with shared.printLock:
@ -103,6 +91,9 @@ class sendDataThread(threading.Thread):
elif command == 'advertisepeer': elif command == 'advertisepeer':
self.objectHashHolderInstance.holdPeer(data) self.objectHashHolderInstance.holdPeer(data)
elif command == 'sendaddr': elif command == 'sendaddr':
if not self.connectionIsOrWasFullyEstablished:
# not sending addr because we haven't sent and heard a verack from the remote node yet
return
numberOfAddressesInAddrMessage = len( numberOfAddressesInAddrMessage = len(
data) data)
payload = '' payload = ''
@ -127,17 +118,13 @@ class sendDataThread(threading.Thread):
self.lastTimeISentData = int(time.time()) self.lastTimeISentData = int(time.time())
except: except:
print 'sendaddr: self.sock.sendall failed' print 'sendaddr: self.sock.sendall failed'
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
print 'sendDataThread thread (ID:', str(id(self)) + ') ending now. Was connected to', self.peer
break break
elif command == 'advertiseobject': elif command == 'advertiseobject':
self.objectHashHolderInstance.holdHash(data) self.objectHashHolderInstance.holdHash(data)
elif command == 'sendinv': elif command == 'sendinv':
if not self.connectionIsOrWasFullyEstablished:
# not sending inv because we haven't sent and heard a verack from the remote node yet
return
payload = '' payload = ''
for hash in data: for hash in data:
if hash not in self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware: if hash not in self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware:
@ -153,13 +140,6 @@ class sendDataThread(threading.Thread):
self.lastTimeISentData = int(time.time()) self.lastTimeISentData = int(time.time())
except: except:
print 'sendinv: self.sock.sendall failed' print 'sendinv: self.sock.sendall failed'
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
print 'sendDataThread thread (ID:', str(id(self)) + ') ending now. Was connected to', self.peer
break break
elif command == 'pong': elif command == 'pong':
self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware.clear() # To save memory, let us clear this data structure from time to time. As its function is to help us keep from sending inv messages to peers which sent us the same inv message mere seconds earlier, it will be fine to clear this data structure from time to time. self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware.clear() # To save memory, let us clear this data structure from time to time. As its function is to help us keep from sending inv messages to peers which sent us the same inv message mere seconds earlier, it will be fine to clear this data structure from time to time.
@ -174,29 +154,28 @@ class sendDataThread(threading.Thread):
self.lastTimeISentData = int(time.time()) self.lastTimeISentData = int(time.time())
except: except:
print 'send pong failed' print 'send pong failed'
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
print 'sendDataThread thread', self, 'ending now. Was connected to', self.peer
break break
elif command == 'sendRawData': elif command == 'sendRawData':
try: try:
self.sock.sendall(data) self.sock.sendall(data)
self.lastTimeISentData = int(time.time()) self.lastTimeISentData = int(time.time())
except: except:
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
print 'Sending of data to', self.peer, 'failed. sendDataThread thread', self, 'ending now.' print 'Sending of data to', self.peer, 'failed. sendDataThread thread', self, 'ending now.'
break break
elif command == 'connectionIsOrWasFullyEstablished':
with shared.printLock:
print 'sendDataThread (associated with', self.peer, ') ID:', id(self), 'setting connectionIsOrWasFullyEstablished to True.'
self.connectionIsOrWasFullyEstablished = True
else: else:
with shared.printLock: with shared.printLock:
print 'sendDataThread ID:', id(self), 'ignoring command', command, 'because the thread is not in stream', deststream print 'sendDataThread ID:', id(self), 'ignoring command', command, 'because the thread is not in stream', deststream
try:
self.sock.shutdown(socket.SHUT_RDWR)
self.sock.close()
except:
pass
shared.sendDataQueues.remove(self.sendDataThreadQueue)
with shared.printLock:
print 'Number of queues remaining in sendDataQueues:', len(shared.sendDataQueues)
self.objectHashHolderInstance.close() self.objectHashHolderInstance.close()

22
src/defaultKnownNodes.py
View File

@ -11,17 +11,17 @@ def createDefaultKnownNodes(appdata):
############## Stream 1 ################ ############## Stream 1 ################
stream1 = {} stream1 = {}
stream1[shared.Peer('176.31.246.114', 8444)] = int(time.time()) #stream1[shared.Peer('2604:2000:1380:9f:82e:148b:2746:d0c7', 8080)] = int(time.time())
stream1[shared.Peer('109.229.197.133', 8444)] = int(time.time()) stream1[shared.Peer('68.33.0.104', 8444)] = int(time.time())
stream1[shared.Peer('174.3.101.111', 8444)] = int(time.time()) stream1[shared.Peer('97.77.34.35', 8444)] = int(time.time())
stream1[shared.Peer('90.188.238.79', 7829)] = int(time.time()) stream1[shared.Peer('71.232.195.131', 8444)] = int(time.time())
stream1[shared.Peer('184.75.69.2', 8444)] = int(time.time()) stream1[shared.Peer('192.241.231.39', 8444)] = int(time.time())
stream1[shared.Peer('60.225.209.243', 8444)] = int(time.time()) stream1[shared.Peer('75.66.0.116', 8444)] = int(time.time())
stream1[shared.Peer('5.145.140.218', 8444)] = int(time.time()) stream1[shared.Peer('182.169.23.102', 8444)] = int(time.time())
stream1[shared.Peer('5.19.255.216', 8444)] = int(time.time()) stream1[shared.Peer('75.95.134.9', 8444)] = int(time.time())
stream1[shared.Peer('193.159.162.189', 8444)] = int(time.time()) stream1[shared.Peer('46.236.100.108', 48444)] = int(time.time())
stream1[shared.Peer('86.26.15.171', 8444)] = int(time.time()) stream1[shared.Peer('66.108.53.42', 8080)] = int(time.time())
############# Stream 2 ################# ############# Stream 2 #################
stream2 = {} stream2 = {}
# None yet # None yet