PyBitmessage-2021-04-27/src/network/proxy.py
Peter Surda e9b1aa48a9
Protocol error handler fixes
- was broken if there was no error message in "raise"
- added default texts for network exceptions
2017-12-29 08:49:08 +01:00

84 lines
2.3 KiB
Python

import socket
import time
from advanceddispatcher import AdvancedDispatcher
import asyncore_pollchoose as asyncore
from debug import logger
import network.connectionpool
import state
class ProxyError(Exception):
errorCodes = ("UnknownError")
def __init__(self, code=-1):
self.code = code
try:
self.message = self.__class__.errorCodes[self.code]
except IndexError:
self.message = self.__class__.errorCodes[-1]
super(ProxyError, self).__init__(self.message)
class GeneralProxyError(ProxyError):
errorCodes = ("Success",
"Invalid data",
"Not connected",
"Not available",
"Bad proxy type",
"Bad input",
"Timed out",
"Network unreachable",
"Connection refused",
"Host unreachable")
class Proxy(AdvancedDispatcher):
# these are global, and if you change config during runtime, all active/new
# instances should change too
_proxy = ("127.0.0.1", 9050)
_auth = None
_remote_dns = True
@property
def proxy(self):
return self.__class__._proxy
@proxy.setter
def proxy(self, address):
if not isinstance(address, tuple) or (len(address) < 2) or \
(not isinstance(address[0], str) or not isinstance(address[1], int)):
raise ValueError
self.__class__._proxy = address
@property
def auth(self):
return self.__class__._auth
@auth.setter
def auth(self, authTuple):
self.__class__._auth = authTuple
def __init__(self, address):
if not isinstance(address, state.Peer):
raise ValueError
AdvancedDispatcher.__init__(self)
self.destination = address
self.isOutbound = True
self.fullyEstablished = False
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.connect(self.proxy)
def handle_connect(self):
self.set_state("init")
try:
AdvancedDispatcher.handle_connect(self)
except socket.error as e:
if e.errno in asyncore._DISCONNECTED:
logger.debug("%s:%i: Connection failed: %s", self.destination.host, self.destination.port, str(e))
return
self.state_init()
def state_proxy_handshake_done(self):
self.connectedAt = time.time()
return False