cis-kuldeep/PyBitmessage-2021-04-27
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Improved stream handling

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- version command sends list of all participating streams
- biginv sends lists of hosts for all streams the peer wants (plus
  immediate children)
- objects will spread to all peers that advertise the associated stream
- please note these are just network subsystem adjustments, streams
  aren't actually usable yet
This commit is contained in:
Peter Šurda 2017-02-06 17:47:05 +01:00
parent 79b566a907
commit f6bdad18a3
Signed by untrusted user: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
5 changed files with 146 additions and 122 deletions
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2
src/bitmessagemain.py
View File

@ -51,7 +51,7 @@ import helper_generic
from helper_threading import * from helper_threading import *
def connectToStream(streamNumber): def connectToStream(streamNumber):
state.streamsInWhichIAmParticipating[streamNumber] = 'no data' state.streamsInWhichIAmParticipating.append(streamNumber)
selfInitiatedConnections[streamNumber] = {} selfInitiatedConnections[streamNumber] = {}
if isOurOperatingSystemLimitedToHavingVeryFewHalfOpenConnections(): if isOurOperatingSystemLimitedToHavingVeryFewHalfOpenConnections():

235
src/class_receiveDataThread.py
View File

@ -62,7 +62,8 @@ class receiveDataThread(threading.Thread):
self.sock = sock self.sock = sock
self.peer = state.Peer(HOST, port) self.peer = state.Peer(HOST, port)
self.name = "receiveData-" + self.peer.host.replace(":", ".") # ":" log parser field separator self.name = "receiveData-" + self.peer.host.replace(":", ".") # ":" log parser field separator
self.streamNumber = streamNumber self.streamNumber = state.streamsInWhichIAmParticipating
self.remoteStreams = []
self.selfInitiatedConnections = selfInitiatedConnections self.selfInitiatedConnections = selfInitiatedConnections
self.sendDataThreadQueue = sendDataThreadQueue # used to send commands and data to the sendDataThread self.sendDataThreadQueue = sendDataThreadQueue # used to send commands and data to the sendDataThread
self.hostIdent = self.peer.port if ".onion" in BMConfigParser().get('bitmessagesettings', 'onionhostname') and protocol.checkSocksIP(self.peer.host) else self.peer.host self.hostIdent = self.peer.port if ".onion" in BMConfigParser().get('bitmessagesettings', 'onionhostname') and protocol.checkSocksIP(self.peer.host) else self.peer.host
@ -70,7 +71,7 @@ class receiveDataThread(threading.Thread):
self.hostIdent] = 0 # The very fact that this receiveData thread exists shows that we are connected to the remote host. Let's add it to this list so that an outgoingSynSender thread doesn't try to connect to it. self.hostIdent] = 0 # The very fact that this receiveData thread exists shows that we are connected to the remote host. Let's add it to this list so that an outgoingSynSender thread doesn't try to connect to it.
self.connectionIsOrWasFullyEstablished = False # set to true after the remote node and I accept each other's version messages. This is needed to allow the user interface to accurately reflect the current number of connections. self.connectionIsOrWasFullyEstablished = False # set to true after the remote node and I accept each other's version messages. This is needed to allow the user interface to accurately reflect the current number of connections.
self.services = 0 self.services = 0
if self.streamNumber == -1: # This was an incoming connection. Send out a version message if we accept the other node's version message. if streamNumber == -1: # This was an incoming connection. Send out a version message if we accept the other node's version message.
self.initiatedConnection = False self.initiatedConnection = False
else: else:
self.initiatedConnection = True self.initiatedConnection = True
@ -120,7 +121,11 @@ class receiveDataThread(threading.Thread):
self.processData() self.processData()
try: try:
del self.selfInitiatedConnections[self.streamNumber][self] for stream in self.remoteStreams:
try:
del self.selfInitiatedConnections[stream][self]
except KeyError:
pass
logger.debug('removed self (a receiveDataThread) from selfInitiatedConnections') logger.debug('removed self (a receiveDataThread) from selfInitiatedConnections')
except: except:
pass pass
@ -137,7 +142,8 @@ class receiveDataThread(threading.Thread):
def antiIntersectionDelay(self, initial = False): def antiIntersectionDelay(self, initial = False):
# estimated time for a small object to propagate across the whole network # estimated time for a small object to propagate across the whole network
delay = math.ceil(math.log(len(shared.knownNodes[self.streamNumber]) + 2, 20)) * (0.2 + objectHashHolder.size/2) delay = math.ceil(math.log(max(len(shared.knownNodes[x]) for x in shared.knownNodes) + 2, 20)) * (0.2 + objectHashHolder.size/2)
# take the stream with maximum amount of nodes
# +2 is to avoid problems with log(0) and log(1) # +2 is to avoid problems with log(0) and log(1)
# 20 is avg connected nodes count # 20 is avg connected nodes count
# 0.2 is avg message transmission time # 0.2 is avg message transmission time
@ -182,7 +188,8 @@ class receiveDataThread(threading.Thread):
# that other peers can be made aware of its existance. # that other peers can be made aware of its existance.
if self.initiatedConnection and self.connectionIsOrWasFullyEstablished: # The remote port is only something we should share with others if it is the remote node's incoming port (rather than some random operating-system-assigned outgoing port). if self.initiatedConnection and self.connectionIsOrWasFullyEstablished: # The remote port is only something we should share with others if it is the remote node's incoming port (rather than some random operating-system-assigned outgoing port).
with shared.knownNodesLock: with shared.knownNodesLock:
shared.knownNodes[self.streamNumber][self.peer] = int(time.time()) for stream in self.streamNumber:
shared.knownNodes[stream][self.peer] = int(time.time())
#Strip the nulls #Strip the nulls
command = command.rstrip('\x00') command = command.rstrip('\x00')
@ -313,9 +320,10 @@ class receiveDataThread(threading.Thread):
PendingUpload().add() PendingUpload().add()
# Let all of our peers know about this new node. # Let all of our peers know about this new node.
dataToSend = (int(time.time()), self.streamNumber, 1, self.peer.host, self.remoteNodeIncomingPort) for stream in self.remoteStreams:
protocol.broadcastToSendDataQueues(( dataToSend = (int(time.time()), stream, self.services, self.peer.host, self.remoteNodeIncomingPort)
self.streamNumber, 'advertisepeer', dataToSend)) protocol.broadcastToSendDataQueues((
stream, 'advertisepeer', dataToSend))
self.sendaddr() # This is one large addr message to this one peer. self.sendaddr() # This is one large addr message to this one peer.
if not self.initiatedConnection and len(shared.connectedHostsList) > 200: if not self.initiatedConnection and len(shared.connectedHostsList) > 200:
@ -328,9 +336,10 @@ class receiveDataThread(threading.Thread):
def sendBigInv(self): def sendBigInv(self):
# Select all hashes for objects in this stream. # Select all hashes for objects in this stream.
bigInvList = {} bigInvList = {}
for hash in Inventory().unexpired_hashes_by_stream(self.streamNumber): for stream in self.streamNumber:
if hash not in self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware and not self.objectHashHolderInstance.hasHash(hash): for hash in Inventory().unexpired_hashes_by_stream(stream):
bigInvList[hash] = 0 if hash not in self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware and not self.objectHashHolderInstance.hasHash(hash):
bigInvList[hash] = 0
numberOfObjectsInInvMessage = 0 numberOfObjectsInInvMessage = 0
payload = '' payload = ''
# Now let us start appending all of these hashes together. They will be # Now let us start appending all of these hashes together. They will be
@ -426,7 +435,9 @@ class receiveDataThread(threading.Thread):
advertisedSet = set() advertisedSet = set()
for i in range(numberOfItemsInInv): for i in range(numberOfItemsInInv):
advertisedSet.add(data[lengthOfVarint + (32 * i):32 + lengthOfVarint + (32 * i)]) advertisedSet.add(data[lengthOfVarint + (32 * i):32 + lengthOfVarint + (32 * i)])
objectsNewToMe = advertisedSet - Inventory().hashes_by_stream(self.streamNumber) objectsNewToMe = advertisedSet
for stream in self.streamNumber:
objectsNewToMe -= Inventory().hashes_by_stream(stream)
logger.info('inv message lists %s objects. Of those %s are new to me. It took %s seconds to figure that out.', numberOfItemsInInv, len(objectsNewToMe), time.time()-startTime) logger.info('inv message lists %s objects. Of those %s are new to me. It took %s seconds to figure that out.', numberOfItemsInInv, len(objectsNewToMe), time.time()-startTime)
for item in objectsNewToMe: for item in objectsNewToMe:
PendingDownload().add(item) PendingDownload().add(item)
@ -532,7 +543,7 @@ class receiveDataThread(threading.Thread):
38 * i):12 + lengthOfNumberOfAddresses + (38 * i)]) 38 * i):12 + lengthOfNumberOfAddresses + (38 * i)])
if recaddrStream == 0: if recaddrStream == 0:
continue continue
if recaddrStream != self.streamNumber and recaddrStream != (self.streamNumber * 2) and recaddrStream != ((self.streamNumber * 2) + 1): # if the embedded stream number is not in my stream or either of my child streams then ignore it. Someone might be trying funny business. if recaddrStream not in self.streamNumber and (recaddrStream / 2) not in self.streamNumber: # if the embedded stream number and its parent are not in my streams then ignore it. Someone might be trying funny business.
continue continue
recaddrServices, = unpack('>Q', data[12 + lengthOfNumberOfAddresses + ( recaddrServices, = unpack('>Q', data[12 + lengthOfNumberOfAddresses + (
38 * i):20 + lengthOfNumberOfAddresses + (38 * i)]) 38 * i):20 + lengthOfNumberOfAddresses + (38 * i)])
@ -560,7 +571,7 @@ class receiveDataThread(threading.Thread):
timeSomeoneElseReceivedMessageFromThisNode, timeSomeoneElseReceivedMessageFromThisNode,
recaddrStream, recaddrServices, hostStandardFormat, recaddrPort) recaddrStream, recaddrServices, hostStandardFormat, recaddrPort)
protocol.broadcastToSendDataQueues(( protocol.broadcastToSendDataQueues((
self.streamNumber, 'advertisepeer', hostDetails)) self.recaddrStream, 'advertisepeer', hostDetails))
else: else:
timeLastReceivedMessageFromThisNode = shared.knownNodes[recaddrStream][ timeLastReceivedMessageFromThisNode = shared.knownNodes[recaddrStream][
peerFromAddrMessage] peerFromAddrMessage]
@ -568,7 +579,8 @@ class receiveDataThread(threading.Thread):
with shared.knownNodesLock: with shared.knownNodesLock:
shared.knownNodes[recaddrStream][peerFromAddrMessage] = timeSomeoneElseReceivedMessageFromThisNode shared.knownNodes[recaddrStream][peerFromAddrMessage] = timeSomeoneElseReceivedMessageFromThisNode
logger.debug('knownNodes currently has ' + str(len(shared.knownNodes[self.streamNumber])) + ' nodes for this stream.') for stream in self.streamNumber:
logger.debug('knownNodes currently has %i nodes for stream %i', len(shared.knownNodes[stream]), stream)
# Send a huge addr message to our peer. This is only used # Send a huge addr message to our peer. This is only used
@ -576,87 +588,87 @@ class receiveDataThread(threading.Thread):
# peer (with the full exchange of version and verack # peer (with the full exchange of version and verack
# messages). # messages).
def sendaddr(self): def sendaddr(self):
addrsInMyStream = {} # We are going to share a maximum number of 1000 addrs (per overlapping
addrsInChildStreamLeft = {} # stream) with our peer. 500 from overlapping streams, 250 from the
addrsInChildStreamRight = {} # left child stream, and 250 from the right child stream.
# print 'knownNodes', shared.knownNodes for stream in self.streamNumber:
addrsInMyStream = {}
addrsInChildStreamLeft = {}
addrsInChildStreamRight = {}
# We are going to share a maximum number of 1000 addrs with our peer. with shared.knownNodesLock:
# 500 from this stream, 250 from the left child stream, and 250 from if len(shared.knownNodes[stream]) > 0:
# the right child stream. ownPosition = random.randint(0, 499)
with shared.knownNodesLock: sentOwn = False
if len(shared.knownNodes[self.streamNumber]) > 0: for i in range(500):
ownPosition = random.randint(0, 499) # if current connection is over a proxy, sent our own onion address at a random position
sentOwn = False if ownPosition == i and ".onion" in BMConfigParser().get("bitmessagesettings", "onionhostname") and \
for i in range(500): hasattr(self.sock, "getproxytype") and self.sock.getproxytype() != "none" and not sentOwn:
# if current connection is over a proxy, sent our own onion address at a random position peer = state.Peer(BMConfigParser().get("bitmessagesettings", "onionhostname"), BMConfigParser().getint("bitmessagesettings", "onionport"))
if ownPosition == i and ".onion" in BMConfigParser().get("bitmessagesettings", "onionhostname") and \ else:
hasattr(self.sock, "getproxytype") and self.sock.getproxytype() != "none" and not sentOwn: # still may contain own onion address, but we don't change it
peer = state.Peer(BMConfigParser().get("bitmessagesettings", "onionhostname"), BMConfigParser().getint("bitmessagesettings", "onionport")) peer, = random.sample(shared.knownNodes[stream], 1)
else: if isHostInPrivateIPRange(peer.host):
# still may contain own onion address, but we don't change it continue
peer, = random.sample(shared.knownNodes[self.streamNumber], 1) if peer.host == BMConfigParser().get("bitmessagesettings", "onionhostname") and peer.port == BMConfigParser().getint("bitmessagesettings", "onionport") :
if isHostInPrivateIPRange(peer.host): sentOwn = True
continue addrsInMyStream[peer] = shared.knownNodes[
if peer.host == BMConfigParser().get("bitmessagesettings", "onionhostname") and peer.port == BMConfigParser().getint("bitmessagesettings", "onionport") : stream][peer]
sentOwn = True # sent 250 only if the remote isn't interested in it
addrsInMyStream[peer] = shared.knownNodes[ if len(shared.knownNodes[stream * 2]) > 0 and stream not in self.streamNumber:
self.streamNumber][peer] for i in range(250):
if len(shared.knownNodes[self.streamNumber * 2]) > 0: peer, = random.sample(shared.knownNodes[
for i in range(250): stream * 2], 1)
peer, = random.sample(shared.knownNodes[ if isHostInPrivateIPRange(peer.host):
self.streamNumber * 2], 1) continue
if isHostInPrivateIPRange(peer.host): addrsInChildStreamLeft[peer] = shared.knownNodes[
continue stream * 2][peer]
addrsInChildStreamLeft[peer] = shared.knownNodes[ if len(shared.knownNodes[(stream * 2) + 1]) > 0 and stream not in self.streamNumber:
self.streamNumber * 2][peer] for i in range(250):
if len(shared.knownNodes[(self.streamNumber * 2) + 1]) > 0: peer, = random.sample(shared.knownNodes[
for i in range(250): (stream * 2) + 1], 1)
peer, = random.sample(shared.knownNodes[ if isHostInPrivateIPRange(peer.host):
(self.streamNumber * 2) + 1], 1) continue
if isHostInPrivateIPRange(peer.host): addrsInChildStreamRight[peer] = shared.knownNodes[
continue (stream * 2) + 1][peer]
addrsInChildStreamRight[peer] = shared.knownNodes[ numberOfAddressesInAddrMessage = 0
(self.streamNumber * 2) + 1][peer] payload = ''
numberOfAddressesInAddrMessage = 0 for (HOST, PORT), value in addrsInMyStream.items():
payload = '' timeLastReceivedMessageFromThisNode = value
# print 'addrsInMyStream.items()', addrsInMyStream.items() if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old..
for (HOST, PORT), value in addrsInMyStream.items(): numberOfAddressesInAddrMessage += 1
timeLastReceivedMessageFromThisNode = value payload += pack(
if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old.. '>Q', timeLastReceivedMessageFromThisNode) # 64-bit time
numberOfAddressesInAddrMessage += 1 payload += pack('>I', stream)
payload += pack( payload += pack(
'>Q', timeLastReceivedMessageFromThisNode) # 64-bit time '>q', 1) # service bit flags offered by this node
payload += pack('>I', self.streamNumber) payload += protocol.encodeHost(HOST)
payload += pack( payload += pack('>H', PORT) # remote port
'>q', 1) # service bit flags offered by this node for (HOST, PORT), value in addrsInChildStreamLeft.items():
payload += protocol.encodeHost(HOST) timeLastReceivedMessageFromThisNode = value
payload += pack('>H', PORT) # remote port if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old..
for (HOST, PORT), value in addrsInChildStreamLeft.items(): numberOfAddressesInAddrMessage += 1
timeLastReceivedMessageFromThisNode = value payload += pack(
if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old.. '>Q', timeLastReceivedMessageFromThisNode) # 64-bit time
numberOfAddressesInAddrMessage += 1 payload += pack('>I', stream * 2)
payload += pack( payload += pack(
'>Q', timeLastReceivedMessageFromThisNode) # 64-bit time '>q', 1) # service bit flags offered by this node
payload += pack('>I', self.streamNumber * 2) payload += protocol.encodeHost(HOST)
payload += pack( payload += pack('>H', PORT) # remote port
'>q', 1) # service bit flags offered by this node for (HOST, PORT), value in addrsInChildStreamRight.items():
payload += protocol.encodeHost(HOST) timeLastReceivedMessageFromThisNode = value
payload += pack('>H', PORT) # remote port if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old..
for (HOST, PORT), value in addrsInChildStreamRight.items(): numberOfAddressesInAddrMessage += 1
timeLastReceivedMessageFromThisNode = value payload += pack(
if timeLastReceivedMessageFromThisNode > (int(time.time()) - shared.maximumAgeOfNodesThatIAdvertiseToOthers): # If it is younger than 3 hours old.. '>Q', timeLastReceivedMessageFromThisNode) # 64-bit time
numberOfAddressesInAddrMessage += 1 payload += pack('>I', (stream * 2) + 1)
payload += pack( payload += pack(
'>Q', timeLastReceivedMessageFromThisNode) # 64-bit time '>q', 1) # service bit flags offered by this node
payload += pack('>I', (self.streamNumber * 2) + 1) payload += protocol.encodeHost(HOST)
payload += pack( payload += pack('>H', PORT) # remote port
'>q', 1) # service bit flags offered by this node
payload += protocol.encodeHost(HOST) payload = encodeVarint(numberOfAddressesInAddrMessage) + payload
payload += pack('>H', PORT) # remote port self.sendDataThreadQueue.put((0, 'sendRawData', protocol.CreatePacket('addr', payload)))
payload = encodeVarint(numberOfAddressesInAddrMessage) + payload
self.sendDataThreadQueue.put((0, 'sendRawData', protocol.CreatePacket('addr', payload)))
# We have received a version message # We have received a version message
@ -732,20 +744,24 @@ class receiveDataThread(threading.Thread):
numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint( numberOfStreamsInVersionMessage, lengthOfNumberOfStreamsInVersionMessage = decodeVarint(
data[readPosition:]) data[readPosition:])
readPosition += lengthOfNumberOfStreamsInVersionMessage readPosition += lengthOfNumberOfStreamsInVersionMessage
self.streamNumber, lengthOfRemoteStreamNumber = decodeVarint( self.remoteStreams = []
data[readPosition:]) for i in range(numberOfStreamsInVersionMessage):
logger.debug('Remote node useragent: ' + useragent + ' stream number:' + str(self.streamNumber) + ' time offset: ' + str(timeOffset) + ' seconds.') newStreamNumber, lengthOfRemoteStreamNumber = decodeVarint(data[readPosition:])
readPosition += lengthOfRemoteStreamNumber
self.remoteStreams.append(newStreamNumber)
logger.debug('Remote node useragent: %s, streams: (%s), time offset: %is.', useragent, ', '.join(str(x) for x in self.remoteStreams), timeOffset)
if self.streamNumber != 1: # find shared streams
self.streamNumber = sorted(set(state.streamsInWhichIAmParticipating).intersection(self.remoteStreams))
if len(self.streamNumber) == 0:
self.sendDataThreadQueue.put((0, 'shutdown','no data')) self.sendDataThreadQueue.put((0, 'shutdown','no data'))
logger.debug ('Closed connection to ' + str(self.peer) + ' because they are interested in stream ' + str(self.streamNumber) + '.') logger.debug ('Closed connection to ' + str(self.peer) + ' because there is no overlapping interest in streams.')
return return
shared.connectedHostsList[ shared.connectedHostsList[
self.hostIdent] = 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.hostIdent] = 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 sendDataThread self.sendDataThreadQueue.put((0, 'setStreamNumber', self.remoteStreams))
# doesn't know the stream. We have to set it.
if not self.initiatedConnection:
self.sendDataThreadQueue.put((0, 'setStreamNumber', self.streamNumber))
if data[72:80] == protocol.eightBytesOfRandomDataUsedToDetectConnectionsToSelf: if data[72:80] == protocol.eightBytesOfRandomDataUsedToDetectConnectionsToSelf:
self.sendDataThreadQueue.put((0, 'shutdown','no data')) self.sendDataThreadQueue.put((0, 'shutdown','no data'))
logger.debug('Closing connection to myself: ' + str(self.peer)) logger.debug('Closing connection to myself: ' + str(self.peer))
@ -757,10 +773,11 @@ class receiveDataThread(threading.Thread):
if not isHostInPrivateIPRange(self.peer.host): if not isHostInPrivateIPRange(self.peer.host):
with shared.knownNodesLock: with shared.knownNodesLock:
shared.knownNodes[self.streamNumber][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] = int(time.time()) for stream in self.remoteStreams:
if not self.initiatedConnection: shared.knownNodes[stream][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] = int(time.time())
shared.knownNodes[self.streamNumber][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] -= 162000 # penalise inbound, 2 days minus 3 hours if not self.initiatedConnection:
shared.needToWriteKnownNodesToDisk = True shared.knownNodes[stream][state.Peer(self.peer.host, self.remoteNodeIncomingPort)] -= 162000 # penalise inbound, 2 days minus 3 hours
shared.needToWriteKnownNodesToDisk = True
self.sendverack() self.sendverack()
if self.initiatedConnection == False: if self.initiatedConnection == False:
@ -770,7 +787,7 @@ class receiveDataThread(threading.Thread):
def sendversion(self): def sendversion(self):
logger.debug('Sending version message') logger.debug('Sending version message')
self.sendDataThreadQueue.put((0, 'sendRawData', protocol.assembleVersionMessage( self.sendDataThreadQueue.put((0, 'sendRawData', protocol.assembleVersionMessage(
self.peer.host, self.peer.port, self.streamNumber, not self.initiatedConnection))) self.peer.host, self.peer.port, state.streamsInWhichIAmParticipating, not self.initiatedConnection)))
# Sends a verack message # Sends a verack message

14
src/class_sendDataThread.py
View File

@ -42,7 +42,7 @@ class sendDataThread(threading.Thread):
self.sock = sock self.sock = sock
self.peer = state.Peer(HOST, PORT) self.peer = state.Peer(HOST, PORT)
self.name = "sendData-" + self.peer.host.replace(":", ".") # log parser field separator self.name = "sendData-" + self.peer.host.replace(":", ".") # log parser field separator
self.streamNumber = streamNumber self.streamNumber = []
self.services = 0 self.services = 0
self.buffer = "" self.buffer = ""
self.initiatedConnection = False self.initiatedConnection = False
@ -51,16 +51,16 @@ class sendDataThread(threading.Thread):
self.lastTimeISentData = int( self.lastTimeISentData = int(
time.time()) # If this value increases beyond five minutes ago, we'll send a pong message to keep the connection alive. time.time()) # If this value increases beyond five minutes ago, we'll send a pong message to keep the connection alive.
self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware = someObjectsOfWhichThisRemoteNodeIsAlreadyAware self.someObjectsOfWhichThisRemoteNodeIsAlreadyAware = someObjectsOfWhichThisRemoteNodeIsAlreadyAware
if self.streamNumber == -1: # This was an incoming connection. if streamNumber == -1: # This was an incoming connection.
self.initiatedConnection = False self.initiatedConnection = False
else: else:
self.initiatedConnection = True self.initiatedConnection = True
logger.debug('The streamNumber of this sendDataThread (ID: ' + str(id(self)) + ') at setup() is' + str(self.streamNumber)) #logger.debug('The streamNumber of this sendDataThread (ID: ' + str(id(self)) + ') at setup() is' + str(self.streamNumber))
def sendVersionMessage(self): def sendVersionMessage(self):
datatosend = protocol.assembleVersionMessage( datatosend = protocol.assembleVersionMessage(
self.peer.host, self.peer.port, self.streamNumber, not self.initiatedConnection) # the IP and port of the remote host, and my streamNumber. self.peer.host, self.peer.port, state.streamsInWhichIAmParticipating, not self.initiatedConnection) # the IP and port of the remote host, and my streamNumber.
logger.debug('Sending version packet: ' + repr(datatosend)) logger.debug('Sending version packet: ' + repr(datatosend))
@ -102,7 +102,7 @@ class sendDataThread(threading.Thread):
self.sendBytes() self.sendBytes()
deststream, command, data = self.sendDataThreadQueue.get() deststream, command, data = self.sendDataThreadQueue.get()
if deststream == self.streamNumber or deststream == 0: if deststream == 0 or deststream in self.streamNumber:
if command == 'shutdown': if command == 'shutdown':
logger.debug('sendDataThread (associated with ' + str(self.peer) + ') ID: ' + str(id(self)) + ' shutting down now.') logger.debug('sendDataThread (associated with ' + str(self.peer) + ') ID: ' + str(id(self)) + ' shutting down now.')
break break
@ -114,7 +114,7 @@ class sendDataThread(threading.Thread):
# streamNumber of this send data thread here: # streamNumber of this send data thread here:
elif command == 'setStreamNumber': elif command == 'setStreamNumber':
self.streamNumber = data self.streamNumber = data
logger.debug('setting the stream number in the sendData thread (ID: ' + str(id(self)) + ') to ' + str(self.streamNumber)) logger.debug('setting the stream number to %s', ', '.join(str(x) for x in self.streamNumber))
elif command == 'setRemoteProtocolVersion': elif command == 'setRemoteProtocolVersion':
specifiedRemoteProtocolVersion = data specifiedRemoteProtocolVersion = data
logger.debug('setting the remote node\'s protocol version in the sendDataThread (ID: ' + str(id(self)) + ') to ' + str(specifiedRemoteProtocolVersion)) logger.debug('setting the remote node\'s protocol version in the sendDataThread (ID: ' + str(id(self)) + ') to ' + str(specifiedRemoteProtocolVersion))
@ -183,7 +183,7 @@ class sendDataThread(threading.Thread):
self.connectionIsOrWasFullyEstablished = True self.connectionIsOrWasFullyEstablished = True
self.services, self.sslSock = data self.services, self.sslSock = data
elif self.connectionIsOrWasFullyEstablished: elif self.connectionIsOrWasFullyEstablished:
logger.error('sendDataThread ID: ' + str(id(self)) + ' ignoring command ' + command + ' because the thread is not in stream ' + str(deststream)) logger.error('sendDataThread ID: ' + str(id(self)) + ' ignoring command ' + command + ' because the thread is not in stream ' + str(deststream) + ' but in streams ' + ', '.join(str(x) for x in self.streamNumber))
self.sendDataThreadQueue.task_done() self.sendDataThreadQueue.task_done()
self.sendDataThreadQueue.task_done() self.sendDataThreadQueue.task_done()

15
src/protocol.py
View File

@ -119,7 +119,7 @@ def CreatePacket(command, payload=''):
b[Header.size:] = payload b[Header.size:] = payload
return bytes(b) return bytes(b)
def assembleVersionMessage(remoteHost, remotePort, myStreamNumber, server = False): def assembleVersionMessage(remoteHost, remotePort, participatingStreams, server = False):
payload = '' payload = ''
payload += pack('>L', 3) # protocol version. payload += pack('>L', 3) # protocol version.
payload += pack('>q', NODE_NETWORK|(NODE_SSL if haveSSL(server) else 0)) # bitflags of the services I offer. payload += pack('>q', NODE_NETWORK|(NODE_SSL if haveSSL(server) else 0)) # bitflags of the services I offer.
@ -154,9 +154,16 @@ def assembleVersionMessage(remoteHost, remotePort, myStreamNumber, server = Fals
userAgent = '/PyBitmessage:' + softwareVersion + '/' userAgent = '/PyBitmessage:' + softwareVersion + '/'
payload += encodeVarint(len(userAgent)) payload += encodeVarint(len(userAgent))
payload += userAgent payload += userAgent
payload += encodeVarint(
1) # The number of streams about which I care. PyBitmessage currently only supports 1 per connection. # Streams
payload += encodeVarint(myStreamNumber) payload += encodeVarint(len(participatingStreams))
count = 0
for stream in sorted(participatingStreams):
payload += encodeVarint(stream)
count += 1
# protocol limit, see specification
if count >= 160000:
break
return CreatePacket('version', payload) return CreatePacket('version', payload)

2
src/state.py
View File

@ -1,7 +1,7 @@
import collections import collections
neededPubkeys = {} neededPubkeys = {}
streamsInWhichIAmParticipating = {} streamsInWhichIAmParticipating = []
sendDataQueues = [] #each sendData thread puts its queue in this list. sendDataQueues = [] #each sendData thread puts its queue in this list.
# For UPnP # For UPnP