Network fixes
This commit is contained in:
lakshyacis
parent
e37d52d950
commit
f0bc74e658
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@ -1,3 +1,6 @@
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"""
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Network subsystem packages
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"""
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from addrthread import AddrThread
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from announcethread import AnnounceThread
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from connectionpool import BMConnectionPool
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@ -12,6 +12,7 @@ from threads import StoppableThread
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class AddrThread(StoppableThread):
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"""(Node) address broadcasting thread"""
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name = "AddrBroadcaster"
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def run(self):
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@ -1,9 +1,7 @@
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"""
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src/network/advanceddispatcher.py
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=================================
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Improved version of asyncore dispatcher
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"""
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# pylint: disable=attribute-defined-outside-init
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import socket
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import threading
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import time
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@ -14,7 +12,8 @@ from threads import BusyError, nonBlocking
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class ProcessingError(Exception):
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"""General class for protocol parser exception, use as a base for others."""
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"""General class for protocol parser exception,
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use as a base for others."""
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pass
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@ -24,7 +23,8 @@ class UnknownStateError(ProcessingError):
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class AdvancedDispatcher(asyncore.dispatcher):
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"""Improved version of asyncore dispatcher, with buffers and protocol state."""
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"""Improved version of asyncore dispatcher,
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with buffers and protocol state."""
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# pylint: disable=too-many-instance-attributes
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_buf_len = 131072 # 128kB
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@ -72,7 +72,8 @@ class AdvancedDispatcher(asyncore.dispatcher):
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del self.read_buf[0:length]
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def process(self):
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"""Process (parse) data that's in the buffer, as long as there is enough data and the connection is open."""
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"""Process (parse) data that's in the buffer,
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as long as there is enough data and the connection is open."""
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while self.connected and not state.shutdown:
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try:
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with nonBlocking(self.processingLock):
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@ -104,8 +105,9 @@ class AdvancedDispatcher(asyncore.dispatcher):
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if asyncore.maxUploadRate > 0:
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self.uploadChunk = int(asyncore.uploadBucket)
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self.uploadChunk = min(self.uploadChunk, len(self.write_buf))
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return asyncore.dispatcher.writable(self) and \
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(self.connecting or (self.connected and self.uploadChunk > 0))
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return asyncore.dispatcher.writable(self) and (
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self.connecting or (
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self.connected and self.uploadChunk > 0))
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def readable(self):
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"""Is the read buffer ready to accept data from the network?"""
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@ -114,13 +116,15 @@ class AdvancedDispatcher(asyncore.dispatcher):
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self.downloadChunk = int(asyncore.downloadBucket)
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try:
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if self.expectBytes > 0 and not self.fullyEstablished:
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self.downloadChunk = min(self.downloadChunk, self.expectBytes - len(self.read_buf))
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self.downloadChunk = min(
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self.downloadChunk, self.expectBytes - len(self.read_buf))
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if self.downloadChunk < 0:
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self.downloadChunk = 0
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except AttributeError:
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pass
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return asyncore.dispatcher.readable(self) and \
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(self.connecting or self.accepting or (self.connected and self.downloadChunk > 0))
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return asyncore.dispatcher.readable(self) and (
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self.connecting or self.accepting or (
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self.connected and self.downloadChunk > 0))
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def handle_read(self):
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"""Append incoming data to the read buffer."""
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@ -144,20 +148,21 @@ class AdvancedDispatcher(asyncore.dispatcher):
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try:
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asyncore.dispatcher.handle_connect_event(self)
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except socket.error as e:
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if e.args[0] not in asyncore._DISCONNECTED: # pylint: disable=protected-access
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# pylint: disable=protected-access
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if e.args[0] not in asyncore._DISCONNECTED:
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raise
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def handle_connect(self):
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"""Method for handling connection established implementations."""
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self.lastTx = time.time()
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def state_close(self):
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def state_close(self): # pylint: disable=no-self-use
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"""Signal to the processing loop to end."""
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# pylint: disable=no-self-use
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return False
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def handle_close(self):
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"""Callback for connection being closed, but can also be called directly when you want connection to close."""
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"""Callback for connection being closed,
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but can also be called directly when you want connection to close."""
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with self.readLock:
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self.read_buf = bytearray()
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with self.writeLock:
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@ -1,8 +1,6 @@
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"""
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src/network/announcethread.py
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=================================
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Announce myself (node address)
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"""
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import time
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import state
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@ -40,6 +38,7 @@ class AnnounceThread(StoppableThread):
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stream,
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Peer(
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'127.0.0.1',
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BMConfigParser().safeGetInt('bitmessagesettings', 'port')),
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BMConfigParser().safeGetInt(
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'bitmessagesettings', 'port')),
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time.time())
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connection.append_write_buf(assemble_addr([addr]))
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@ -1,7 +1,6 @@
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"""
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Create bitmessage protocol command packets
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"""
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import struct
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import addresses
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@ -13,20 +12,20 @@ from protocol import CreatePacket, encodeHost
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def assemble_addr(peerList):
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"""Create address command"""
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if isinstance(peerList, Peer):
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peerList = (peerList)
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peerList = [peerList]
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if not peerList:
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return b''
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retval = b''
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for i in range(0, len(peerList), MAX_ADDR_COUNT):
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payload = addresses.encodeVarint(
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len(peerList[i:i + MAX_ADDR_COUNT]))
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payload = addresses.encodeVarint(len(peerList[i:i + MAX_ADDR_COUNT]))
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for stream, peer, timestamp in peerList[i:i + MAX_ADDR_COUNT]:
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payload += struct.pack(
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'>Q', timestamp) # 64-bit time
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# 64-bit time
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payload += struct.pack('>Q', timestamp)
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payload += struct.pack('>I', stream)
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payload += struct.pack(
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'>q', 1) # service bit flags offered by this node
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# service bit flags offered by this node
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payload += struct.pack('>q', 1)
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payload += encodeHost(peer.host)
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payload += struct.pack('>H', peer.port) # remote port
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# remote port
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payload += struct.pack('>H', peer.port)
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retval += CreatePacket('addr', payload)
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return retval
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@ -1,56 +1,11 @@
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"""
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Basic infrastructure for asynchronous socket service clients and servers.
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"""
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# -*- Mode: Python -*-
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# Id: asyncore.py,v 2.51 2000/09/07 22:29:26 rushing Exp
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# Author: Sam Rushing <rushing@nightmare.com>
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# pylint: disable=too-many-statements,too-many-branches,no-self-use,too-many-lines,attribute-defined-outside-init
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# pylint: disable=global-statement
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"""
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src/network/asyncore_pollchoose.py
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==================================
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# ======================================================================
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# Copyright 1996 by Sam Rushing
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#
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# All Rights Reserved
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#
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# Permission to use, copy, modify, and distribute this software and
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# its documentation for any purpose and without fee is hereby
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# granted, provided that the above copyright notice appear in all
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# copies and that both that copyright notice and this permission
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# notice appear in supporting documentation, and that the name of Sam
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# Rushing not be used in advertising or publicity pertaining to
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# distribution of the software without specific, written prior
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# permission.
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#
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# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
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# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# ======================================================================
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Basic infrastructure for asynchronous socket service clients and servers.
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There are only two ways to have a program on a single processor do "more
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than one thing at a time". Multi-threaded programming is the simplest and
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most popular way to do it, but there is another very different technique,
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that lets you have nearly all the advantages of multi-threading, without
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actually using multiple threads. it's really only practical if your program
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is largely I/O bound. If your program is CPU bound, then pre-emptive
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scheduled threads are probably what you really need. Network servers are
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rarely CPU-bound, however.
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If your operating system supports the select() system call in its I/O
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library (and nearly all do), then you can use it to juggle multiple
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communication channels at once; doing other work while your I/O is taking
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place in the "background." Although this strategy can seem strange and
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complex, especially at first, it is in many ways easier to understand and
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control than multi-threaded programming. The module documented here solves
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many of the difficult problems for you, making the task of building
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sophisticated high-performance network servers and clients a snap.
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"""
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# pylint: disable=too-many-branches,too-many-lines,global-statement
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# pylint: disable=redefined-builtin,no-self-use
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import os
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import select
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import socket
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@ -58,8 +13,9 @@ import sys
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import time
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import warnings
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from errno import (
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EADDRINUSE, EAGAIN, EALREADY, EBADF, ECONNABORTED, ECONNREFUSED, ECONNRESET, EHOSTUNREACH, EINPROGRESS, EINTR,
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EINVAL, EISCONN, ENETUNREACH, ENOTCONN, ENOTSOCK, EPIPE, ESHUTDOWN, ETIMEDOUT, EWOULDBLOCK, errorcode
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EADDRINUSE, EAGAIN, EALREADY, EBADF, ECONNABORTED, ECONNREFUSED,
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ECONNRESET, EHOSTUNREACH, EINPROGRESS, EINTR, EINVAL, EISCONN, ENETUNREACH,
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ENOTCONN, ENOTSOCK, EPIPE, ESHUTDOWN, ETIMEDOUT, EWOULDBLOCK, errorcode
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)
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from threading import current_thread
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@ -107,7 +63,8 @@ def _strerror(err):
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class ExitNow(Exception):
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"""We don't use directly but may be necessary as we replace asyncore due to some library raising or expecting it"""
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"""We don't use directly but may be necessary as we replace
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asyncore due to some library raising or expecting it"""
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pass
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def set_rates(download, upload):
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"""Set throttling rates"""
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global maxDownloadRate, maxUploadRate, downloadBucket, uploadBucket, downloadTimestamp, uploadTimestamp
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global maxDownloadRate, maxUploadRate, downloadBucket
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global uploadBucket, downloadTimestamp, uploadTimestamp
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maxDownloadRate = float(download) * 1024
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maxUploadRate = float(upload) * 1024
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currentTimestamp = time.time()
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receivedBytes += download
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if maxDownloadRate > 0:
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bucketIncrease = maxDownloadRate * (currentTimestamp - downloadTimestamp)
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bucketIncrease = \
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maxDownloadRate * (currentTimestamp - downloadTimestamp)
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downloadBucket += bucketIncrease
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if downloadBucket > maxDownloadRate:
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downloadBucket = int(maxDownloadRate)
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@ -242,7 +201,6 @@ def readwrite(obj, flags):
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def select_poller(timeout=0.0, map=None):
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"""A poller which uses select(), available on most platforms."""
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# pylint: disable=redefined-builtin
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if map is None:
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map = socket_map
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@ -298,7 +256,6 @@ def select_poller(timeout=0.0, map=None):
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def poll_poller(timeout=0.0, map=None):
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"""A poller which uses poll(), available on most UNIXen."""
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# pylint: disable=redefined-builtin
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if map is None:
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map = socket_map
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@ -356,7 +313,6 @@ poll2 = poll3 = poll_poller
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def epoll_poller(timeout=0.0, map=None):
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"""A poller which uses epoll(), supported on Linux 2.5.44 and newer."""
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# pylint: disable=redefined-builtin
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if map is None:
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map = socket_map
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@ -412,7 +368,7 @@ def epoll_poller(timeout=0.0, map=None):
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def kqueue_poller(timeout=0.0, map=None):
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"""A poller which uses kqueue(), BSD specific."""
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# pylint: disable=redefined-builtin,no-member
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# pylint: disable=no-member,too-many-statements
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if map is None:
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map = socket_map
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@ -440,14 +396,20 @@ def kqueue_poller(timeout=0.0, map=None):
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poller_flags |= select.KQ_EV_ENABLE
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else:
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poller_flags |= select.KQ_EV_DISABLE
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updates.append(select.kevent(fd, filter=select.KQ_FILTER_READ, flags=poller_flags))
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updates.append(
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select.kevent(
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fd, filter=select.KQ_FILTER_READ,
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flags=poller_flags))
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if kq_filter & 2 != obj.poller_filter & 2:
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poller_flags = select.KQ_EV_ADD
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if kq_filter & 2:
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poller_flags |= select.KQ_EV_ENABLE
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else:
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poller_flags |= select.KQ_EV_DISABLE
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updates.append(select.kevent(fd, filter=select.KQ_FILTER_WRITE, flags=poller_flags))
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updates.append(
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select.kevent(
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fd, filter=select.KQ_FILTER_WRITE,
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flags=poller_flags))
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obj.poller_filter = kq_filter
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if not selectables:
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@ -481,7 +443,6 @@ def kqueue_poller(timeout=0.0, map=None):
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def loop(timeout=30.0, use_poll=False, map=None, count=None, poller=None):
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"""Poll in a loop, until count or timeout is reached"""
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# pylint: disable=redefined-builtin
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if map is None:
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map = socket_map
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@ -520,9 +481,9 @@ def loop(timeout=30.0, use_poll=False, map=None, count=None, poller=None):
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count = count - 1
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class dispatcher:
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class dispatcher(object):
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"""Dispatcher for socket objects"""
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# pylint: disable=too-many-public-methods,too-many-instance-attributes,old-style-class
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# pylint: disable=too-many-public-methods,too-many-instance-attributes
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debug = False
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connected = False
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@ -537,7 +498,6 @@ class dispatcher:
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minTx = 1500
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def __init__(self, sock=None, map=None):
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# pylint: disable=redefined-builtin
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if map is None:
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self._map = socket_map
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else:
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@ -586,8 +546,7 @@ class dispatcher:
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def add_channel(self, map=None):
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"""Add a channel"""
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# pylint: disable=redefined-builtin
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# pylint: disable=attribute-defined-outside-init
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if map is None:
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map = self._map
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map[self._fileno] = self
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@ -596,8 +555,6 @@ class dispatcher:
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def del_channel(self, map=None):
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"""Delete a channel"""
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# pylint: disable=redefined-builtin
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fd = self._fileno
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if map is None:
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map = self._map
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@ -605,12 +562,14 @@ class dispatcher:
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del map[fd]
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if self._fileno:
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try:
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kqueue_poller.pollster.control([select.kevent(fd, select.KQ_FILTER_READ, select.KQ_EV_DELETE)], 0)
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except (AttributeError, KeyError, TypeError, IOError, OSError):
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kqueue_poller.pollster.control([select.kevent(
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fd, select.KQ_FILTER_READ, select.KQ_EV_DELETE)], 0)
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except(AttributeError, KeyError, TypeError, IOError, OSError):
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pass
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try:
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kqueue_poller.pollster.control([select.kevent(fd, select.KQ_FILTER_WRITE, select.KQ_EV_DELETE)], 0)
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except (AttributeError, KeyError, TypeError, IOError, OSError):
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kqueue_poller.pollster.control([select.kevent(
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fd, select.KQ_FILTER_WRITE, select.KQ_EV_DELETE)], 0)
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except(AttributeError, KeyError, TypeError, IOError, OSError):
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pass
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try:
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epoll_poller.pollster.unregister(fd)
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@ -627,8 +586,10 @@ class dispatcher:
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self.poller_filter = 0
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self.poller_registered = False
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def create_socket(self, family=socket.AF_INET, socket_type=socket.SOCK_STREAM):
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def create_socket(
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self, family=socket.AF_INET, socket_type=socket.SOCK_STREAM):
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"""Create a socket"""
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# pylint: disable=attribute-defined-outside-init
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self.family_and_type = family, socket_type
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sock = socket.socket(family, socket_type)
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sock.setblocking(0)
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@ -636,20 +597,16 @@ class dispatcher:
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def set_socket(self, sock, map=None):
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"""Set socket"""
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# pylint: disable=redefined-builtin
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self.socket = sock
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self._fileno = sock.fileno()
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self.add_channel(map)
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def set_reuse_addr(self):
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"""try to re-use a server port if possible"""
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try:
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self.socket.setsockopt(
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socket.SOL_SOCKET, socket.SO_REUSEADDR,
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self.socket.getsockopt(socket.SOL_SOCKET,
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socket.SO_REUSEADDR) | 1
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socket.SOL_SOCKET, socket.SO_REUSEADDR, self.socket.getsockopt(
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socket.SOL_SOCKET, socket.SO_REUSEADDR) | 1
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)
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except socket.error:
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pass
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@ -704,13 +661,16 @@ class dispatcher:
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raise socket.error(err, errorcode[err])
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def accept(self):
|
||||
"""Accept incoming connections. Returns either an address pair or None."""
|
||||
"""Accept incoming connections.
|
||||
Returns either an address pair or None."""
|
||||
try:
|
||||
conn, addr = self.socket.accept()
|
||||
except TypeError:
|
||||
return None
|
||||
except socket.error as why:
|
||||
if why.args[0] in (EWOULDBLOCK, WSAEWOULDBLOCK, ECONNABORTED, EAGAIN, ENOTCONN):
|
||||
if why.args[0] in (
|
||||
EWOULDBLOCK, WSAEWOULDBLOCK, ECONNABORTED,
|
||||
EAGAIN, ENOTCONN):
|
||||
return None
|
||||
else:
|
||||
raise
|
||||
|
|
@ -769,11 +729,12 @@ class dispatcher:
|
|||
try:
|
||||
retattr = getattr(self.socket, attr)
|
||||
except AttributeError:
|
||||
raise AttributeError("%s instance has no attribute '%s'"
|
||||
% (self.__class__.__name__, attr))
|
||||
raise AttributeError(
|
||||
"%s instance has no attribute '%s'"
|
||||
% (self.__class__.__name__, attr))
|
||||
else:
|
||||
msg = "%(me)s.%(attr)s is deprecated; use %(me)s.socket.%(attr)s " \
|
||||
"instead" % {'me': self.__class__.__name__, 'attr': attr}
|
||||
msg = "%(me)s.%(attr)s is deprecated; use %(me)s.socket.%(attr)s"\
|
||||
" instead" % {'me': self.__class__.__name__, 'attr': attr}
|
||||
warnings.warn(msg, DeprecationWarning, stacklevel=2)
|
||||
return retattr
|
||||
|
||||
|
|
@ -855,13 +816,8 @@ class dispatcher:
|
|||
|
||||
self.log_info(
|
||||
'uncaptured python exception, closing channel %s (%s:%s %s)' % (
|
||||
self_repr,
|
||||
t,
|
||||
v,
|
||||
tbinfo
|
||||
),
|
||||
'error'
|
||||
)
|
||||
self_repr, t, v, tbinfo),
|
||||
'error')
|
||||
self.handle_close()
|
||||
|
||||
def handle_accept(self):
|
||||
|
|
@ -902,11 +858,8 @@ class dispatcher_with_send(dispatcher):
|
|||
adds simple buffered output capability, useful for simple clients.
|
||||
[for more sophisticated usage use asynchat.async_chat]
|
||||
"""
|
||||
# pylint: disable=redefined-builtin
|
||||
|
||||
def __init__(self, sock=None, map=None):
|
||||
# pylint: disable=redefined-builtin
|
||||
|
||||
dispatcher.__init__(self, sock, map)
|
||||
self.out_buffer = b''
|
||||
|
||||
|
|
@ -941,7 +894,8 @@ def compact_traceback():
|
|||
"""Return a compact traceback"""
|
||||
t, v, tb = sys.exc_info()
|
||||
tbinfo = []
|
||||
if not tb: # Must have a traceback
|
||||
# Must have a traceback
|
||||
if not tb:
|
||||
raise AssertionError("traceback does not exist")
|
||||
while tb:
|
||||
tbinfo.append((
|
||||
|
|
@ -961,7 +915,6 @@ def compact_traceback():
|
|||
|
||||
def close_all(map=None, ignore_all=False):
|
||||
"""Close all connections"""
|
||||
# pylint: disable=redefined-builtin
|
||||
|
||||
if map is None:
|
||||
map = socket_map
|
||||
|
|
@ -998,13 +951,13 @@ def close_all(map=None, ignore_all=False):
|
|||
if os.name == 'posix':
|
||||
import fcntl
|
||||
|
||||
class file_wrapper:
|
||||
class file_wrapper: # pylint: disable=old-style-class
|
||||
"""
|
||||
Here we override just enough to make a file look like a socket for the purposes of asyncore.
|
||||
Here we override just enough to make a file look
|
||||
like a socket for the purposes of asyncore.
|
||||
|
||||
The passed fd is automatically os.dup()'d
|
||||
"""
|
||||
# pylint: disable=old-style-class
|
||||
|
||||
def __init__(self, fd):
|
||||
self.fd = os.dup(fd)
|
||||
|
|
@ -1019,12 +972,11 @@ if os.name == 'posix':
|
|||
|
||||
def getsockopt(self, level, optname, buflen=None):
|
||||
"""Fake getsockopt()"""
|
||||
if (level == socket.SOL_SOCKET and
|
||||
optname == socket.SO_ERROR and
|
||||
if (level == socket.SOL_SOCKET and optname == socket.SO_ERROR and
|
||||
not buflen):
|
||||
return 0
|
||||
raise NotImplementedError("Only asyncore specific behaviour "
|
||||
"implemented.")
|
||||
raise NotImplementedError(
|
||||
"Only asyncore specific behaviour implemented.")
|
||||
|
||||
read = recv
|
||||
write = send
|
||||
|
|
@ -1041,8 +993,6 @@ if os.name == 'posix':
|
|||
"""A dispatcher for file_wrapper objects"""
|
||||
|
||||
def __init__(self, fd, map=None):
|
||||
# pylint: disable=redefined-builtin
|
||||
|
||||
dispatcher.__init__(self, None, map)
|
||||
self.connected = True
|
||||
try:
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
"""
|
||||
BMObject and it's exceptions.
|
||||
"""
|
||||
|
||||
import logging
|
||||
import time
|
||||
|
||||
|
|
@ -15,12 +14,14 @@ logger = logging.getLogger('default')
|
|||
|
||||
|
||||
class BMObjectInsufficientPOWError(Exception):
|
||||
"""Exception indicating the object doesn't have sufficient proof of work."""
|
||||
"""Exception indicating the object
|
||||
doesn't have sufficient proof of work."""
|
||||
errorCodes = ("Insufficient proof of work")
|
||||
|
||||
|
||||
class BMObjectInvalidDataError(Exception):
|
||||
"""Exception indicating the data being parsed does not match the specification."""
|
||||
"""Exception indicating the data being parsed
|
||||
does not match the specification."""
|
||||
errorCodes = ("Data invalid")
|
||||
|
||||
|
||||
|
|
@ -30,7 +31,8 @@ class BMObjectExpiredError(Exception):
|
|||
|
||||
|
||||
class BMObjectUnwantedStreamError(Exception):
|
||||
"""Exception indicating the object is in a stream we didn't advertise as being interested in."""
|
||||
"""Exception indicating the object is in a stream
|
||||
we didn't advertise as being interested in."""
|
||||
errorCodes = ("Object in unwanted stream")
|
||||
|
||||
|
||||
|
|
@ -44,9 +46,8 @@ class BMObjectAlreadyHaveError(Exception):
|
|||
errorCodes = ("Already have this object")
|
||||
|
||||
|
||||
class BMObject(object):
|
||||
class BMObject(object): # pylint: disable=too-many-instance-attributes
|
||||
"""Bitmessage Object as a class."""
|
||||
# pylint: disable=too-many-instance-attributes
|
||||
|
||||
# max TTL, 28 days and 3 hours
|
||||
maxTTL = 28 * 24 * 60 * 60 + 10800
|
||||
|
|
@ -81,31 +82,36 @@ class BMObject(object):
|
|||
raise BMObjectInsufficientPOWError()
|
||||
|
||||
def checkEOLSanity(self):
|
||||
"""Check if object's lifetime isn't ridiculously far in the past or future."""
|
||||
"""Check if object's lifetime
|
||||
isn't ridiculously far in the past or future."""
|
||||
# EOL sanity check
|
||||
if self.expiresTime - int(time.time()) > BMObject.maxTTL:
|
||||
logger.info(
|
||||
'This object\'s End of Life time is too far in the future. Ignoring it. Time is %i',
|
||||
self.expiresTime)
|
||||
'This object\'s End of Life time is too far in the future.'
|
||||
' Ignoring it. Time is %i', self.expiresTime)
|
||||
# .. todo:: remove from download queue
|
||||
raise BMObjectExpiredError()
|
||||
|
||||
if self.expiresTime - int(time.time()) < BMObject.minTTL:
|
||||
logger.info(
|
||||
'This object\'s End of Life time was too long ago. Ignoring the object. Time is %i',
|
||||
self.expiresTime)
|
||||
'This object\'s End of Life time was too long ago.'
|
||||
' Ignoring the object. Time is %i', self.expiresTime)
|
||||
# .. todo:: remove from download queue
|
||||
raise BMObjectExpiredError()
|
||||
|
||||
def checkStream(self):
|
||||
"""Check if object's stream matches streams we are interested in"""
|
||||
if self.streamNumber not in state.streamsInWhichIAmParticipating:
|
||||
logger.debug('The streamNumber %i isn\'t one we are interested in.', self.streamNumber)
|
||||
logger.debug(
|
||||
'The streamNumber %i isn\'t one we are interested in.',
|
||||
self.streamNumber)
|
||||
raise BMObjectUnwantedStreamError()
|
||||
|
||||
def checkAlreadyHave(self):
|
||||
"""
|
||||
Check if we already have the object (so that we don't duplicate it in inventory or advertise it unnecessarily)
|
||||
Check if we already have the object
|
||||
(so that we don't duplicate it in inventory
|
||||
or advertise it unnecessarily)
|
||||
"""
|
||||
# if it's a stem duplicate, pretend we don't have it
|
||||
if Dandelion().hasHash(self.inventoryHash):
|
||||
|
|
@ -114,7 +120,8 @@ class BMObject(object):
|
|||
raise BMObjectAlreadyHaveError()
|
||||
|
||||
def checkObjectByType(self):
|
||||
"""Call a object type specific check (objects can have additional checks based on their types)"""
|
||||
"""Call a object type specific check
|
||||
(objects can have additional checks based on their types)"""
|
||||
if self.objectType == protocol.OBJECT_GETPUBKEY:
|
||||
self.checkGetpubkey()
|
||||
elif self.objectType == protocol.OBJECT_PUBKEY:
|
||||
|
|
@ -125,20 +132,21 @@ class BMObject(object):
|
|||
self.checkBroadcast()
|
||||
# other objects don't require other types of tests
|
||||
|
||||
def checkMessage(self):
|
||||
def checkMessage(self): # pylint: disable=no-self-use
|
||||
""""Message" object type checks."""
|
||||
# pylint: disable=no-self-use
|
||||
return
|
||||
|
||||
def checkGetpubkey(self):
|
||||
""""Getpubkey" object type checks."""
|
||||
if len(self.data) < 42:
|
||||
logger.info('getpubkey message doesn\'t contain enough data. Ignoring.')
|
||||
logger.info(
|
||||
'getpubkey message doesn\'t contain enough data. Ignoring.')
|
||||
raise BMObjectInvalidError()
|
||||
|
||||
def checkPubkey(self):
|
||||
""""Pubkey" object type checks."""
|
||||
if len(self.data) < 146 or len(self.data) > 440: # sanity check
|
||||
# sanity check
|
||||
if len(self.data) < 146 or len(self.data) > 440:
|
||||
logger.info('pubkey object too short or too long. Ignoring.')
|
||||
raise BMObjectInvalidError()
|
||||
|
||||
|
|
@ -146,8 +154,9 @@ class BMObject(object):
|
|||
""""Broadcast" object type checks."""
|
||||
if len(self.data) < 180:
|
||||
logger.debug(
|
||||
'The payload length of this broadcast packet is unreasonably low.'
|
||||
' Someone is probably trying funny business. Ignoring message.')
|
||||
'The payload length of this broadcast'
|
||||
' packet is unreasonably low. Someone is probably'
|
||||
' trying funny business. Ignoring message.')
|
||||
raise BMObjectInvalidError()
|
||||
|
||||
# this isn't supported anymore
|
||||
|
|
|
|||
|
|
@ -1,8 +1,7 @@
|
|||
"""
|
||||
src/network/bmproto.py
|
||||
==================================
|
||||
Bitmessage Protocol
|
||||
"""
|
||||
# pylint: disable=attribute-defined-outside-init
|
||||
# pylint: disable=attribute-defined-outside-init, too-few-public-methods
|
||||
import base64
|
||||
import hashlib
|
||||
import logging
|
||||
|
|
@ -19,17 +18,16 @@ import state
|
|||
from bmconfigparser import BMConfigParser
|
||||
from inventory import Inventory
|
||||
from network.advanceddispatcher import AdvancedDispatcher
|
||||
from network.constants import (
|
||||
ADDRESS_ALIVE,
|
||||
MAX_MESSAGE_SIZE,
|
||||
MAX_OBJECT_COUNT,
|
||||
MAX_OBJECT_PAYLOAD_SIZE,
|
||||
MAX_TIME_OFFSET)
|
||||
from network.dandelion import Dandelion
|
||||
from network.bmobject import (
|
||||
BMObject, BMObjectInsufficientPOWError, BMObjectInvalidDataError,
|
||||
BMObjectExpiredError, BMObjectUnwantedStreamError,
|
||||
BMObjectInvalidError, BMObjectAlreadyHaveError)
|
||||
BMObjectInvalidError, BMObjectAlreadyHaveError
|
||||
)
|
||||
from network.constants import (
|
||||
ADDRESS_ALIVE, MAX_MESSAGE_SIZE, MAX_OBJECT_COUNT,
|
||||
MAX_OBJECT_PAYLOAD_SIZE, MAX_TIME_OFFSET
|
||||
)
|
||||
from network.dandelion import Dandelion
|
||||
from network.proxy import ProxyError
|
||||
from node import Node, Peer
|
||||
from objectracker import missingObjects, ObjectTracker
|
||||
|
|
@ -59,7 +57,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
# pylint: disable=too-many-instance-attributes, too-many-public-methods
|
||||
timeOffsetWrongCount = 0
|
||||
|
||||
def __init__(self, address=None, sock=None): # pylint: disable=unused-argument, super-init-not-called
|
||||
def __init__(self, address=None, sock=None):
|
||||
# pylint: disable=unused-argument, super-init-not-called
|
||||
AdvancedDispatcher.__init__(self, sock)
|
||||
self.isOutbound = False
|
||||
# packet/connection from a local IP
|
||||
|
|
@ -163,7 +162,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
|
||||
def decode_payload_varint(self):
|
||||
"""Decode a varint from the payload"""
|
||||
value, offset = addresses.decodeVarint(self.payload[self.payloadOffset:])
|
||||
value, offset = addresses.decodeVarint(
|
||||
self.payload[self.payloadOffset:])
|
||||
self.payloadOffset += offset
|
||||
return value
|
||||
|
||||
|
|
@ -185,8 +185,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
|
||||
return Node(services, host, port)
|
||||
|
||||
def decode_payload_content(self, pattern="v"): # pylint: disable=too-many-branches, too-many-statements
|
||||
|
||||
# pylint: disable=too-many-branches, too-many-statements
|
||||
def decode_payload_content(self, pattern="v"):
|
||||
"""
|
||||
Decode the payload depending on pattern:
|
||||
|
||||
|
|
@ -202,7 +202,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
, = end of array
|
||||
"""
|
||||
|
||||
def decode_simple(self, char="v"): # pylint: disable=inconsistent-return-statements
|
||||
# pylint: disable=inconsistent-return-statements
|
||||
def decode_simple(self, char="v"):
|
||||
"""Decode the payload using one char pattern"""
|
||||
if char == "v":
|
||||
return self.decode_payload_varint()
|
||||
|
|
@ -312,8 +313,11 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
|
||||
def bm_command_error(self):
|
||||
"""Decode an error message and log it"""
|
||||
fatalStatus, banTime, inventoryVector, errorText = \
|
||||
self.decode_payload_content("vvlsls")
|
||||
err_values = self.decode_payload_content("vvlsls")
|
||||
fatalStatus = err_values[0]
|
||||
# banTime = err_values[1]
|
||||
# inventoryVector = err_values[2]
|
||||
errorText = err_values[3]
|
||||
logger.error(
|
||||
'%s:%i error: %i, %s', self.destination.host,
|
||||
self.destination.port, fatalStatus, errorText)
|
||||
|
|
@ -408,8 +412,10 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
except KeyError:
|
||||
pass
|
||||
|
||||
if self.object.inventoryHash in Inventory() and Dandelion().hasHash(self.object.inventoryHash):
|
||||
Dandelion().removeHash(self.object.inventoryHash, "cycle detection")
|
||||
if self.object.inventoryHash in Inventory() and Dandelion().hasHash(
|
||||
self.object.inventoryHash):
|
||||
Dandelion().removeHash(
|
||||
self.object.inventoryHash, "cycle detection")
|
||||
|
||||
Inventory()[self.object.inventoryHash] = (
|
||||
self.object.objectType, self.object.streamNumber,
|
||||
|
|
@ -428,27 +434,30 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
|
||||
def bm_command_addr(self):
|
||||
"""Incoming addresses, process them"""
|
||||
addresses = self._decode_addr() # pylint: disable=redefined-outer-name
|
||||
for i in addresses:
|
||||
seenTime, stream, services, ip, port = i
|
||||
# pylint: disable=redefined-outer-name
|
||||
addresses = self._decode_addr()
|
||||
for seenTime, stream, _, ip, port in addresses:
|
||||
decodedIP = protocol.checkIPAddress(str(ip))
|
||||
if stream not in state.streamsInWhichIAmParticipating:
|
||||
continue
|
||||
if (
|
||||
decodedIP and time.time() - seenTime > 0 and
|
||||
seenTime > time.time() - ADDRESS_ALIVE and
|
||||
port > 0
|
||||
decodedIP and time.time() - seenTime > 0 and
|
||||
seenTime > time.time() - ADDRESS_ALIVE and
|
||||
port > 0
|
||||
):
|
||||
peer = Peer(decodedIP, port)
|
||||
try:
|
||||
if knownnodes.knownNodes[stream][peer]["lastseen"] > seenTime:
|
||||
if knownnodes.knownNodes[stream][peer]["lastseen"] > \
|
||||
seenTime:
|
||||
continue
|
||||
except KeyError:
|
||||
pass
|
||||
if len(knownnodes.knownNodes[stream]) < BMConfigParser().safeGetInt("knownnodes", "maxnodes"):
|
||||
if len(knownnodes.knownNodes[stream]) < \
|
||||
BMConfigParser().safeGetInt("knownnodes", "maxnodes"):
|
||||
with knownnodes.knownNodesLock:
|
||||
try:
|
||||
knownnodes.knownNodes[stream][peer]["lastseen"] = seenTime
|
||||
knownnodes.knownNodes[stream][peer]["lastseen"] = \
|
||||
seenTime
|
||||
except (TypeError, KeyError):
|
||||
knownnodes.knownNodes[stream][peer] = {
|
||||
"lastseen": seenTime,
|
||||
|
|
@ -539,7 +548,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
length=self.payloadLength, expectBytes=0)
|
||||
return False
|
||||
|
||||
def peerValidityChecks(self): # pylint: disable=too-many-return-statements
|
||||
# pylint: disable=too-many-return-statements
|
||||
def peerValidityChecks(self):
|
||||
"""Check the validity of the peer"""
|
||||
if self.remoteProtocolVersion < 3:
|
||||
self.append_write_buf(protocol.assembleErrorMessage(
|
||||
|
|
@ -551,8 +561,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
return False
|
||||
if self.timeOffset > MAX_TIME_OFFSET:
|
||||
self.append_write_buf(protocol.assembleErrorMessage(
|
||||
errorText="Your time is too far in the future compared to mine."
|
||||
" Closing connection.", fatal=2))
|
||||
errorText="Your time is too far in the future"
|
||||
" compared to mine. Closing connection.", fatal=2))
|
||||
logger.info(
|
||||
"%s's time is too far in the future (%s seconds)."
|
||||
" Closing connection to it.", self.destination, self.timeOffset)
|
||||
|
|
@ -574,8 +584,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
errorText="We don't have shared stream interests."
|
||||
" Closing connection.", fatal=2))
|
||||
logger.debug(
|
||||
'Closed connection to %s because there is no overlapping interest'
|
||||
' in streams.', self.destination)
|
||||
'Closed connection to %s because there is no overlapping'
|
||||
' interest in streams.', self.destination)
|
||||
return False
|
||||
if self.destination in connectionpool.BMConnectionPool().inboundConnections:
|
||||
try:
|
||||
|
|
@ -584,8 +594,8 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
|
|||
errorText="Too many connections from your IP."
|
||||
" Closing connection.", fatal=2))
|
||||
logger.debug(
|
||||
'Closed connection to %s because we are already connected'
|
||||
' to that IP.', self.destination)
|
||||
'Closed connection to %s because we are already'
|
||||
' connected to that IP.', self.destination)
|
||||
return False
|
||||
except:
|
||||
pass
|
||||
|
|
|
|||
|
|
@ -1,3 +1,6 @@
|
|||
"""
|
||||
Select which node to connect to
|
||||
"""
|
||||
# pylint: disable=too-many-branches
|
||||
import logging
|
||||
import random # nosec
|
||||
|
|
@ -12,6 +15,7 @@ logger = logging.getLogger('default')
|
|||
|
||||
|
||||
def getDiscoveredPeer():
|
||||
"""Get a peer from the local peer discovery list"""
|
||||
try:
|
||||
peer = random.choice(state.discoveredPeers.keys())
|
||||
except (IndexError, KeyError):
|
||||
|
|
@ -24,6 +28,7 @@ def getDiscoveredPeer():
|
|||
|
||||
|
||||
def chooseConnection(stream):
|
||||
"""Returns an appropriate connection"""
|
||||
haveOnion = BMConfigParser().safeGet(
|
||||
"bitmessagesettings", "socksproxytype")[0:5] == 'SOCKS'
|
||||
onionOnly = BMConfigParser().safeGetBoolean(
|
||||
|
|
@ -49,7 +54,8 @@ def chooseConnection(stream):
|
|||
logger.warning('Error in %s', peer)
|
||||
rating = 0
|
||||
if haveOnion:
|
||||
# do not connect to raw IP addresses--keep all traffic within Tor overlay
|
||||
# do not connect to raw IP addresses
|
||||
# --keep all traffic within Tor overlay
|
||||
if onionOnly and not peer.host.endswith('.onion'):
|
||||
continue
|
||||
# onion addresses have a higher priority when SOCKS
|
||||
|
|
|
|||
|
|
@ -3,9 +3,15 @@ Network protocol constants
|
|||
"""
|
||||
|
||||
|
||||
ADDRESS_ALIVE = 10800 #: address is online if online less than this many seconds ago
|
||||
MAX_ADDR_COUNT = 1000 #: protocol specification says max 1000 addresses in one addr command
|
||||
MAX_MESSAGE_SIZE = 1600100 #: ~1.6 MB which is the maximum possible size of an inv message.
|
||||
MAX_OBJECT_PAYLOAD_SIZE = 2**18 #: 2**18 = 256kB is the maximum size of an object payload
|
||||
MAX_OBJECT_COUNT = 50000 #: protocol specification says max 50000 objects in one inv command
|
||||
MAX_TIME_OFFSET = 3600 #: maximum time offset
|
||||
#: address is online if online less than this many seconds ago
|
||||
ADDRESS_ALIVE = 10800
|
||||
#: protocol specification says max 1000 addresses in one addr command
|
||||
MAX_ADDR_COUNT = 1000
|
||||
#: ~1.6 MB which is the maximum possible size of an inv message.
|
||||
MAX_MESSAGE_SIZE = 1600100
|
||||
#: 2**18 = 256kB is the maximum size of an object payload
|
||||
MAX_OBJECT_PAYLOAD_SIZE = 2**18
|
||||
#: protocol specification says max 50000 objects in one inv command
|
||||
MAX_OBJECT_COUNT = 50000
|
||||
#: maximum time offset
|
||||
MAX_TIME_OFFSET = 3600
|
||||
|
|
|
|||
|
|
@ -1,10 +1,9 @@
|
|||
"""
|
||||
src/network/dandelion.py
|
||||
========================
|
||||
Dandelion class definition, tracks stages
|
||||
"""
|
||||
import logging
|
||||
from collections import namedtuple
|
||||
from random import choice, sample, expovariate
|
||||
from random import choice, expovariate, sample
|
||||
from threading import RLock
|
||||
from time import time
|
||||
|
||||
|
|
@ -28,7 +27,7 @@ logger = logging.getLogger('default')
|
|||
|
||||
|
||||
@Singleton
|
||||
class Dandelion(): # pylint: disable=old-style-class
|
||||
class Dandelion: # pylint: disable=old-style-class
|
||||
"""Dandelion class for tracking stem/fluff stages."""
|
||||
def __init__(self):
|
||||
# currently assignable child stems
|
||||
|
|
@ -123,7 +122,8 @@ class Dandelion(): # pylint: disable=old-style-class
|
|||
self.stem.remove(connection)
|
||||
# active mappings to pointing to the removed node
|
||||
for k in (
|
||||
k for k, v in self.nodeMap.iteritems() if v == connection
|
||||
k for k, v in self.nodeMap.iteritems()
|
||||
if v == connection
|
||||
):
|
||||
self.nodeMap[k] = None
|
||||
for k, v in {
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
"""
|
||||
`DownloadThread` class definition
|
||||
"""
|
||||
|
||||
import time
|
||||
|
||||
import addresses
|
||||
|
|
@ -30,7 +29,9 @@ class DownloadThread(StoppableThread):
|
|||
"""Expire pending downloads eventually"""
|
||||
deadline = time.time() - self.requestExpires
|
||||
try:
|
||||
toDelete = [k for k, v in missingObjects.iteritems() if v < deadline]
|
||||
toDelete = [
|
||||
k for k, v in missingObjects.iteritems()
|
||||
if v < deadline]
|
||||
except RuntimeError:
|
||||
pass
|
||||
else:
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
"""
|
||||
src/network/invthread.py
|
||||
========================
|
||||
Thread to send inv annoucements
|
||||
"""
|
||||
import Queue
|
||||
import random
|
||||
|
|
@ -34,7 +33,7 @@ def handleExpiredDandelion(expired):
|
|||
|
||||
|
||||
class InvThread(StoppableThread):
|
||||
"""A thread to send inv annoucements."""
|
||||
"""Main thread that sends inv annoucements"""
|
||||
|
||||
name = "InvBroadcaster"
|
||||
|
||||
|
|
@ -43,12 +42,13 @@ class InvThread(StoppableThread):
|
|||
"""Locally generated inventory items require special handling"""
|
||||
Dandelion().addHash(hashId, stream=stream)
|
||||
for connection in BMConnectionPool().connections():
|
||||
if state.dandelion and connection != Dandelion().objectChildStem(hashId):
|
||||
if state.dandelion and connection != \
|
||||
Dandelion().objectChildStem(hashId):
|
||||
continue
|
||||
connection.objectsNewToThem[hashId] = time()
|
||||
|
||||
def run(self): # pylint: disable=too-many-branches
|
||||
while not state.shutdown: # pylint: disable=too-many-nested-blocks
|
||||
def run(self): # pylint: disable=too-many-branches
|
||||
while not state.shutdown: # pylint: disable=too-many-nested-blocks
|
||||
chunk = []
|
||||
while True:
|
||||
# Dandelion fluff trigger by expiration
|
||||
|
|
@ -92,15 +92,17 @@ class InvThread(StoppableThread):
|
|||
random.shuffle(fluffs)
|
||||
connection.append_write_buf(protocol.CreatePacket(
|
||||
'inv',
|
||||
addresses.encodeVarint(len(fluffs)) + ''.join(fluffs)))
|
||||
addresses.encodeVarint(
|
||||
len(fluffs)) + ''.join(fluffs)))
|
||||
if stems:
|
||||
random.shuffle(stems)
|
||||
connection.append_write_buf(protocol.CreatePacket(
|
||||
'dinv',
|
||||
addresses.encodeVarint(len(stems)) + ''.join(stems)))
|
||||
addresses.encodeVarint(
|
||||
len(stems)) + ''.join(stems)))
|
||||
|
||||
invQueue.iterate()
|
||||
for i in range(len(chunk)):
|
||||
for _ in range(len(chunk)):
|
||||
invQueue.task_done()
|
||||
|
||||
if Dandelion().refresh < time():
|
||||
|
|
|
|||
Reference in New Issue
Block a user