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-rw-r--r--sleekxmpp/plugins/__init__.py1
-rw-r--r--sleekxmpp/plugins/xep_0065/__init__.py5
-rw-r--r--sleekxmpp/plugins/xep_0065/proxy.py246
-rw-r--r--sleekxmpp/plugins/xep_0065/stanza.py41
-rw-r--r--sleekxmpp/thirdparty/__init__.py1
-rw-r--r--sleekxmpp/thirdparty/socks.py382
6 files changed, 676 insertions, 0 deletions
diff --git a/sleekxmpp/plugins/__init__.py b/sleekxmpp/plugins/__init__.py
index 4ff53ac2..c2d89c46 100644
--- a/sleekxmpp/plugins/__init__.py
+++ b/sleekxmpp/plugins/__init__.py
@@ -31,6 +31,7 @@ __all__ = [
'xep_0054', # vcard-temp
'xep_0059', # Result Set Management
'xep_0060', # Pubsub (Client)
+ 'xep_0065', # SOCKS5 Bytestreams
'xep_0066', # Out of Band Data
'xep_0077', # In-Band Registration
# 'xep_0078', # Non-SASL auth. Don't automatically load
diff --git a/sleekxmpp/plugins/xep_0065/__init__.py b/sleekxmpp/plugins/xep_0065/__init__.py
new file mode 100644
index 00000000..c577d859
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0065/__init__.py
@@ -0,0 +1,5 @@
+from sleekxmpp.plugins.base import register_plugin
+from sleekxmpp.plugins.xep_0065.proxy import XEP_0065
+
+
+register_plugin(XEP_0065)
diff --git a/sleekxmpp/plugins/xep_0065/proxy.py b/sleekxmpp/plugins/xep_0065/proxy.py
new file mode 100644
index 00000000..dec37612
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0065/proxy.py
@@ -0,0 +1,246 @@
+import logging
+
+from hashlib import sha1
+from uuid import uuid4
+
+from sleekxmpp.plugins.xep_0065 import stanza
+
+from sleekxmpp.plugins.base import base_plugin
+from sleekxmpp.xmlstream.handler import Callback
+from sleekxmpp.xmlstream.matcher import StanzaPath
+from sleekxmpp.thirdparty.socks import socksocket, PROXY_TYPE_SOCKS5
+
+# Registers the sleekxmpp logger
+log = logging.getLogger(__name__)
+
+
+class XEP_0065(base_plugin):
+ """
+ XEP-0065 Socks5 Bytestreams
+ """
+
+ description = "Socks5 Bytestreams"
+ dependencies = set(['xep_0030', ])
+ xep = '0065'
+ name = 'xep_0065'
+
+ # A dict contains for each SID, the proxy thread currently
+ # running.
+ proxies = {}
+
+ def plugin_init(self):
+ """ Initializes the xep_0065 plugin and all event callbacks.
+ """
+
+ # Shortcuts to access to the xep_0030 plugin.
+ self.disco = self.xmpp['xep_0030']
+
+ # Handler for the streamhost stanza.
+ self.xmpp.registerHandler(
+ Callback('Socks5 Bytestreams',
+ StanzaPath('iq@type=set/socks/streamhost'),
+ self._handle_streamhost))
+
+ # Handler for the streamhost-used stanza.
+ self.xmpp.registerHandler(
+ Callback('Socks5 Bytestreams',
+ StanzaPath('iq@type=result/socks/streamhost-used'),
+ self._handle_streamhost_used))
+
+ def get_socket(self, sid):
+ """ Returns the socket associated to the SID.
+ """
+
+ proxy = self.proxies.get(sid)
+ if proxy:
+ return proxy
+
+ def handshake(self, to, streamer=None):
+ """ Starts the handshake to establish the socks5 bytestreams
+ connection.
+ """
+
+ # Discovers the proxy.
+ self.streamer = streamer or self.discover_proxy()
+
+ # Requester requests network address from the proxy.
+ streamhost = self.get_network_address(self.streamer)
+ self.proxy_host = streamhost['socks']['streamhost']['host']
+ self.proxy_port = streamhost['socks']['streamhost']['port']
+
+ # Generates the SID for this new handshake.
+ sid = uuid4().hex
+
+ # Requester initiates S5B negotation with Target by sending
+ # IQ-set that includes the JabberID and network address of
+ # StreamHost as well as the StreamID (SID) of the proposed
+ # bytestream.
+ iq = self.xmpp.Iq(sto=to, stype='set')
+ iq['socks']['sid'] = sid
+ iq['socks']['streamhost']['jid'] = self.streamer
+ iq['socks']['streamhost']['host'] = self.proxy_host
+ iq['socks']['streamhost']['port'] = self.proxy_port
+
+ # Sends the new IQ.
+ return iq.send()
+
+ def discover_proxy(self):
+ """ Auto-discovers (using XEP 0030) the available bytestream
+ proxy on the XMPP server.
+
+ Returns the JID of the proxy.
+ """
+
+ # Gets all disco items.
+ disco_items = self.disco.get_items(self.xmpp.server)
+
+ for item in disco_items['disco_items']['items']:
+ # For each items, gets the disco info.
+ disco_info = self.disco.get_info(item[0])
+
+ # Gets and verifies if the identity is a bytestream proxy.
+ identities = disco_info['disco_info']['identities']
+ for identity in identities:
+ if identity[0] == 'proxy' and identity[1] == 'bytestreams':
+ # Returns when the first occurence is found.
+ return '%s' % disco_info['from']
+
+ def get_network_address(self, streamer):
+ """ Gets the streamhost information of the proxy.
+
+ streamer : The jid of the proxy.
+ """
+
+ iq = self.xmpp.Iq(sto=streamer, stype='get')
+ iq['socks'] # Adds the query eleme to the iq.
+
+ return iq.send()
+
+ def _handle_streamhost(self, iq):
+ """ Handles all streamhost stanzas.
+ """
+
+ # Registers the streamhost info.
+ self.streamer = iq['socks']['streamhost']['jid']
+ self.proxy_host = iq['socks']['streamhost']['host']
+ self.proxy_port = iq['socks']['streamhost']['port']
+
+ # Sets the SID, the requester and the target.
+ sid = iq['socks']['sid']
+ requester = '%s' % iq['from']
+ target = '%s' % self.xmpp.boundjid
+
+ # Next the Target attempts to open a standard TCP socket on
+ # the network address of the Proxy.
+ self.proxy = self._connect_proxy(sid, requester, target,
+ self.proxy_host, self.proxy_port)
+
+ # Registers the new proxy to the proxies dict.
+ self.proxies[sid] = self.proxy
+
+ # Replies to the incoming iq with a streamhost-used stanza.
+ res_iq = iq.reply()
+ res_iq['socks']['sid'] = sid
+ res_iq['socks']['streamhost-used']['jid'] = self.streamer
+
+ # Sends the IQ
+ return res_iq.send()
+
+ def _handle_streamhost_used(self, iq):
+ """ Handles all streamhost-used stanzas.
+ """
+
+ # Sets the SID, the requester and the target.
+ sid = iq['socks']['sid']
+ requester = '%s' % self.xmpp.boundjid
+ target = '%s' % iq['from']
+
+ # The Requester will establish a connection to the SOCKS5
+ # proxy in the same way the Target did.
+ self.proxy = self._connect_proxy(sid, requester, target,
+ self.proxy_host, self.proxy_port)
+
+ # Registers the new thread in the proxy_thread dict.
+ self.proxies[sid] = self.proxy
+
+ # Requester sends IQ-set to StreamHost requesting that StreamHost
+ # activate the bytestream associated with the StreamID.
+ self.activate(iq['socks']['sid'], target)
+
+ def activate(self, sid, to):
+ """ IQ-set to StreamHost requesting that StreamHost activate
+ the bytestream associated with the StreamID.
+ """
+
+ # Creates the activate IQ.
+ act_iq = self.xmpp.Iq(sto=self.streamer, stype='set')
+ act_iq['socks']['sid'] = sid
+ act_iq['socks']['activate'] = to
+
+ # Send the IQ.
+ act_iq.send()
+
+ def deactivate(self, sid):
+ """ Closes the Proxy thread associated to this SID.
+ """
+
+ proxy = self.proxies.get(sid)
+ if proxy:
+ proxy.s.close()
+ del self.proxies[sid]
+
+ def close(self):
+ """ Closes all Proxy threads.
+ """
+
+ for sid, proxy in self.proxies.items():
+ proxy.close()
+ del self.proxies[sid]
+
+ def send(self, sid, data):
+ """ Sends the data over the Proxy socket associated to the
+ SID.
+ """
+
+ proxy = self.get_socket(sid)
+ if proxy:
+ proxy.sendall(data)
+
+ def _connect_proxy(self, sid, requester, target, proxy, proxy_port):
+ """ Establishes a connection between the client and the server-side
+ Socks5 proxy.
+
+ sid : The StreamID. <str>
+ requester : The JID of the requester. <str>
+ target : The JID of the target. <str>
+ proxy_host : The hostname or the IP of the proxy. <str>
+ proxy_port : The port of the proxy. <str> or <int>
+ """
+
+ # Because the xep_0065 plugin uses the proxy_port as string,
+ # the Proxy class accepts the proxy_port argument as a string
+ # or an integer. Here, we force to use the port as an integer.
+ proxy_port = int(proxy_port)
+
+ # Creates the socks5 proxy socket
+ sock = socksocket()
+ sock.setproxy(PROXY_TYPE_SOCKS5, proxy, port=proxy_port)
+
+ # The hostname MUST be SHA1(SID + Requester JID + Target JID)
+ # where the output is hexadecimal-encoded (not binary).
+ digest = sha1()
+ digest.update(sid) # SID
+ digest.update(requester) # Requester JID
+ digest.update(target) # Target JID
+
+ # Computes the digest in hex.
+ dest = '%s' % digest.hexdigest()
+
+ # The port MUST be 0.
+ sock.connect((dest, 0))
+ log.info('Socket connected.')
+
+ # Send the XMPP event.
+ self.xmpp.event('socks_connected', sid)
+
+ return sock
diff --git a/sleekxmpp/plugins/xep_0065/stanza.py b/sleekxmpp/plugins/xep_0065/stanza.py
new file mode 100644
index 00000000..ae57aba8
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0065/stanza.py
@@ -0,0 +1,41 @@
+from sleekxmpp import Iq
+from sleekxmpp.xmlstream import ElementBase, register_stanza_plugin
+
+
+# The protocol namespace defined in the Socks5Bytestream (0065) spec.
+namespace = 'http://jabber.org/protocol/bytestreams'
+
+
+class StreamHost(ElementBase):
+ """ The streamhost xml element.
+ """
+
+ namespace = namespace
+ name = 'streamhost'
+ plugin_attrib = 'streamhost'
+ interfaces = set(('host', 'jid', 'port'))
+
+
+class StreamHostUsed(ElementBase):
+ """ The streamhost-used xml element.
+ """
+
+ namespace = namespace
+ name = 'streamhost-used'
+ plugin_attrib = 'streamhost-used'
+ interfaces = set(('jid',))
+
+
+class Socks5(ElementBase):
+ """ The query xml element.
+ """
+
+ namespace = namespace
+ name = 'query'
+ plugin_attrib = 'socks'
+ interfaces = set(('sid', 'activate'))
+ sub_interfaces = set(('activate',))
+
+register_stanza_plugin(Iq, Socks5)
+register_stanza_plugin(Socks5, StreamHost)
+register_stanza_plugin(Socks5, StreamHostUsed)
diff --git a/sleekxmpp/thirdparty/__init__.py b/sleekxmpp/thirdparty/__init__.py
index 502be6b6..2a1db717 100644
--- a/sleekxmpp/thirdparty/__init__.py
+++ b/sleekxmpp/thirdparty/__init__.py
@@ -8,4 +8,5 @@ try:
except:
from sleekxmpp.thirdparty.gnupg import GPG
+from sleekxmpp.thirdparty import socks
from sleekxmpp.thirdparty.mini_dateutil import tzutc, tzoffset, parse_iso
diff --git a/sleekxmpp/thirdparty/socks.py b/sleekxmpp/thirdparty/socks.py
new file mode 100644
index 00000000..a6c0d70e
--- /dev/null
+++ b/sleekxmpp/thirdparty/socks.py
@@ -0,0 +1,382 @@
+"""SocksiPy - Python SOCKS module.
+Version 1.00
+
+Copyright 2006 Dan-Haim. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+3. Neither the name of Dan Haim nor the names of his contributors may be used
+ to endorse or promote products derived from this software without specific
+ prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY DAN HAIM "AS IS" AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+EVENT SHALL DAN HAIM OR HIS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA
+OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMANGE.
+
+
+This module provides a standard socket-like interface for Python
+for tunneling connections through SOCKS proxies.
+
+"""
+
+"""
+
+Minor modifications made by Christopher Gilbert (http://motomastyle.com/)
+for use in PyLoris (http://pyloris.sourceforge.net/)
+
+Minor modifications made by Mario Vilas (http://breakingcode.wordpress.com/)
+mainly to merge bug fixes found in Sourceforge
+
+"""
+
+import socket
+import struct
+import sys
+
+PROXY_TYPE_SOCKS4 = 1
+PROXY_TYPE_SOCKS5 = 2
+PROXY_TYPE_HTTP = 3
+
+_defaultproxy = None
+_orgsocket = socket.socket
+
+class ProxyError(Exception): pass
+class GeneralProxyError(ProxyError): pass
+class Socks5AuthError(ProxyError): pass
+class Socks5Error(ProxyError): pass
+class Socks4Error(ProxyError): pass
+class HTTPError(ProxyError): pass
+
+_generalerrors = ("success",
+ "invalid data",
+ "not connected",
+ "not available",
+ "bad proxy type",
+ "bad input")
+
+_socks5errors = ("succeeded",
+ "general SOCKS server failure",
+ "connection not allowed by ruleset",
+ "Network unreachable",
+ "Host unreachable",
+ "Connection refused",
+ "TTL expired",
+ "Command not supported",
+ "Address type not supported",
+ "Unknown error")
+
+_socks5autherrors = ("succeeded",
+ "authentication is required",
+ "all offered authentication methods were rejected",
+ "unknown username or invalid password",
+ "unknown error")
+
+_socks4errors = ("request granted",
+ "request rejected or failed",
+ "request rejected because SOCKS server cannot connect to identd on the client",
+ "request rejected because the client program and identd report different user-ids",
+ "unknown error")
+
+def setdefaultproxy(proxytype=None, addr=None, port=None, rdns=True, username=None, password=None):
+ """setdefaultproxy(proxytype, addr[, port[, rdns[, username[, password]]]])
+ Sets a default proxy which all further socksocket objects will use,
+ unless explicitly changed.
+ """
+ global _defaultproxy
+ _defaultproxy = (proxytype, addr, port, rdns, username, password)
+
+def wrapmodule(module):
+ """wrapmodule(module)
+ Attempts to replace a module's socket library with a SOCKS socket. Must set
+ a default proxy using setdefaultproxy(...) first.
+ This will only work on modules that import socket directly into the namespace;
+ most of the Python Standard Library falls into this category.
+ """
+ if _defaultproxy != None:
+ module.socket.socket = socksocket
+ else:
+ raise GeneralProxyError((4, "no proxy specified"))
+
+class socksocket(socket.socket):
+ """socksocket([family[, type[, proto]]]) -> socket object
+ Open a SOCKS enabled socket. The parameters are the same as
+ those of the standard socket init. In order for SOCKS to work,
+ you must specify family=AF_INET, type=SOCK_STREAM and proto=0.
+ """
+
+ def __init__(self, family=socket.AF_INET, type=socket.SOCK_STREAM, proto=0, _sock=None):
+ _orgsocket.__init__(self, family, type, proto, _sock)
+ if _defaultproxy != None:
+ self.__proxy = _defaultproxy
+ else:
+ self.__proxy = (None, None, None, None, None, None)
+ self.__proxysockname = None
+ self.__proxypeername = None
+
+ def __recvall(self, count):
+ """__recvall(count) -> data
+ Receive EXACTLY the number of bytes requested from the socket.
+ Blocks until the required number of bytes have been received.
+ """
+ data = self.recv(count)
+ while len(data) < count:
+ d = self.recv(count-len(data))
+ if not d: raise GeneralProxyError((0, "connection closed unexpectedly"))
+ data = data + d
+ return data
+
+ def setproxy(self, proxytype=None, addr=None, port=None, rdns=True, username=None, password=None):
+ """setproxy(proxytype, addr[, port[, rdns[, username[, password]]]])
+ Sets the proxy to be used.
+ proxytype - The type of the proxy to be used. Three types
+ are supported: PROXY_TYPE_SOCKS4 (including socks4a),
+ PROXY_TYPE_SOCKS5 and PROXY_TYPE_HTTP
+ addr - The address of the server (IP or DNS).
+ port - The port of the server. Defaults to 1080 for SOCKS
+ servers and 8080 for HTTP proxy servers.
+ rdns - Should DNS queries be preformed on the remote side
+ (rather than the local side). The default is True.
+ Note: This has no effect with SOCKS4 servers.
+ username - Username to authenticate with to the server.
+ The default is no authentication.
+ password - Password to authenticate with to the server.
+ Only relevant when username is also provided.
+ """
+ self.__proxy = (proxytype, addr, port, rdns, username, password)
+
+ def __negotiatesocks5(self, destaddr, destport):
+ """__negotiatesocks5(self,destaddr,destport)
+ Negotiates a connection through a SOCKS5 server.
+ """
+ # First we'll send the authentication packages we support.
+ if (self.__proxy[4]!=None) and (self.__proxy[5]!=None):
+ # The username/password details were supplied to the
+ # setproxy method so we support the USERNAME/PASSWORD
+ # authentication (in addition to the standard none).
+ self.sendall(struct.pack('BBBB', 0x05, 0x02, 0x00, 0x02))
+ else:
+ # No username/password were entered, therefore we
+ # only support connections with no authentication.
+ self.sendall(struct.pack('BBB', 0x05, 0x01, 0x00))
+ # We'll receive the server's response to determine which
+ # method was selected
+ chosenauth = self.__recvall(2)
+ if chosenauth[0:1] != chr(0x05).encode():
+ self.close()
+ raise GeneralProxyError((1, _generalerrors[1]))
+ # Check the chosen authentication method
+ if chosenauth[1:2] == chr(0x00).encode():
+ # No authentication is required
+ pass
+ elif chosenauth[1:2] == chr(0x02).encode():
+ # Okay, we need to perform a basic username/password
+ # authentication.
+ self.sendall(chr(0x01).encode() + chr(len(self.__proxy[4])) + self.__proxy[4] + chr(len(self.__proxy[5])) + self.__proxy[5])
+ authstat = self.__recvall(2)
+ if authstat[0:1] != chr(0x01).encode():
+ # Bad response
+ self.close()
+ raise GeneralProxyError((1, _generalerrors[1]))
+ if authstat[1:2] != chr(0x00).encode():
+ # Authentication failed
+ self.close()
+ raise Socks5AuthError((3, _socks5autherrors[3]))
+ # Authentication succeeded
+ else:
+ # Reaching here is always bad
+ self.close()
+ if chosenauth[1] == chr(0xFF).encode():
+ raise Socks5AuthError((2, _socks5autherrors[2]))
+ else:
+ raise GeneralProxyError((1, _generalerrors[1]))
+ # Now we can request the actual connection
+ req = struct.pack('BBB', 0x05, 0x01, 0x00)
+ # If the given destination address is an IP address, we'll
+ # use the IPv4 address request even if remote resolving was specified.
+ try:
+ ipaddr = socket.inet_aton(destaddr)
+ req = req + chr(0x01).encode() + ipaddr
+ except socket.error:
+ # Well it's not an IP number, so it's probably a DNS name.
+ if self.__proxy[3]:
+ # Resolve remotely
+ ipaddr = None
+ req = req + chr(0x03).encode() + chr(len(destaddr)).encode() + destaddr
+ else:
+ # Resolve locally
+ ipaddr = socket.inet_aton(socket.gethostbyname(destaddr))
+ req = req + chr(0x01).encode() + ipaddr
+ req = req + struct.pack(">H", destport)
+ self.sendall(req)
+ # Get the response
+ resp = self.__recvall(4)
+ if resp[0:1] != chr(0x05).encode():
+ self.close()
+ raise GeneralProxyError((1, _generalerrors[1]))
+ elif resp[1:2] != chr(0x00).encode():
+ # Connection failed
+ self.close()
+ if ord(resp[1:2])<=8:
+ raise Socks5Error((ord(resp[1:2]), _socks5errors[ord(resp[1:2])]))
+ else:
+ raise Socks5Error((9, _socks5errors[9]))
+ # Get the bound address/port
+ elif resp[3:4] == chr(0x01).encode():
+ boundaddr = self.__recvall(4)
+ elif resp[3:4] == chr(0x03).encode():
+ resp = resp + self.recv(1)
+ boundaddr = self.__recvall(ord(resp[4:5]))
+ else:
+ self.close()
+ raise GeneralProxyError((1,_generalerrors[1]))
+ boundport = struct.unpack(">H", self.__recvall(2))[0]
+ self.__proxysockname = (boundaddr, boundport)
+ if ipaddr != None:
+ self.__proxypeername = (socket.inet_ntoa(ipaddr), destport)
+ else:
+ self.__proxypeername = (destaddr, destport)
+
+ def getproxysockname(self):
+ """getsockname() -> address info
+ Returns the bound IP address and port number at the proxy.
+ """
+ return self.__proxysockname
+
+ def getproxypeername(self):
+ """getproxypeername() -> address info
+ Returns the IP and port number of the proxy.
+ """
+ return _orgsocket.getpeername(self)
+
+ def getpeername(self):
+ """getpeername() -> address info
+ Returns the IP address and port number of the destination
+ machine (note: getproxypeername returns the proxy)
+ """
+ return self.__proxypeername
+
+ def __negotiatesocks4(self,destaddr,destport):
+ """__negotiatesocks4(self,destaddr,destport)
+ Negotiates a connection through a SOCKS4 server.
+ """
+ # Check if the destination address provided is an IP address
+ rmtrslv = False
+ try:
+ ipaddr = socket.inet_aton(destaddr)
+ except socket.error:
+ # It's a DNS name. Check where it should be resolved.
+ if self.__proxy[3]:
+ ipaddr = struct.pack("BBBB", 0x00, 0x00, 0x00, 0x01)
+ rmtrslv = True
+ else:
+ ipaddr = socket.inet_aton(socket.gethostbyname(destaddr))
+ # Construct the request packet
+ req = struct.pack(">BBH", 0x04, 0x01, destport) + ipaddr
+ # The username parameter is considered userid for SOCKS4
+ if self.__proxy[4] != None:
+ req = req + self.__proxy[4]
+ req = req + chr(0x00).encode()
+ # DNS name if remote resolving is required
+ # NOTE: This is actually an extension to the SOCKS4 protocol
+ # called SOCKS4A and may not be supported in all cases.
+ if rmtrslv:
+ req = req + destaddr + chr(0x00).encode()
+ self.sendall(req)
+ # Get the response from the server
+ resp = self.__recvall(8)
+ if resp[0:1] != chr(0x00).encode():
+ # Bad data
+ self.close()
+ raise GeneralProxyError((1,_generalerrors[1]))
+ if resp[1:2] != chr(0x5A).encode():
+ # Server returned an error
+ self.close()
+ if ord(resp[1:2]) in (91, 92, 93):
+ self.close()
+ raise Socks4Error((ord(resp[1:2]), _socks4errors[ord(resp[1:2]) - 90]))
+ else:
+ raise Socks4Error((94, _socks4errors[4]))
+ # Get the bound address/port
+ self.__proxysockname = (socket.inet_ntoa(resp[4:]), struct.unpack(">H", resp[2:4])[0])
+ if rmtrslv != None:
+ self.__proxypeername = (socket.inet_ntoa(ipaddr), destport)
+ else:
+ self.__proxypeername = (destaddr, destport)
+
+ def __negotiatehttp(self, destaddr, destport):
+ """__negotiatehttp(self,destaddr,destport)
+ Negotiates a connection through an HTTP server.
+ """
+ # If we need to resolve locally, we do this now
+ if not self.__proxy[3]:
+ addr = socket.gethostbyname(destaddr)
+ else:
+ addr = destaddr
+ self.sendall(("CONNECT " + addr + ":" + str(destport) + " HTTP/1.1\r\n" + "Host: " + destaddr + "\r\n\r\n").encode())
+ # We read the response until we get the string "\r\n\r\n"
+ resp = self.recv(1)
+ while resp.find("\r\n\r\n".encode()) == -1:
+ resp = resp + self.recv(1)
+ # We just need the first line to check if the connection
+ # was successful
+ statusline = resp.splitlines()[0].split(" ".encode(), 2)
+ if statusline[0] not in ("HTTP/1.0".encode(), "HTTP/1.1".encode()):
+ self.close()
+ raise GeneralProxyError((1, _generalerrors[1]))
+ try:
+ statuscode = int(statusline[1])
+ except ValueError:
+ self.close()
+ raise GeneralProxyError((1, _generalerrors[1]))
+ if statuscode != 200:
+ self.close()
+ raise HTTPError((statuscode, statusline[2]))
+ self.__proxysockname = ("0.0.0.0", 0)
+ self.__proxypeername = (addr, destport)
+
+ def connect(self, destpair):
+ """connect(self, despair)
+ Connects to the specified destination through a proxy.
+ destpar - A tuple of the IP/DNS address and the port number.
+ (identical to socket's connect).
+ To select the proxy server use setproxy().
+ """
+ # Do a minimal input check first
+ if (not type(destpair) in (list,tuple)) or (len(destpair) < 2) or (type(destpair[0]) != type('')) or (type(destpair[1]) != int):
+ raise GeneralProxyError((5, _generalerrors[5]))
+ if self.__proxy[0] == PROXY_TYPE_SOCKS5:
+ if self.__proxy[2] != None:
+ portnum = self.__proxy[2]
+ else:
+ portnum = 1080
+ _orgsocket.connect(self, (self.__proxy[1], portnum))
+ self.__negotiatesocks5(destpair[0], destpair[1])
+ elif self.__proxy[0] == PROXY_TYPE_SOCKS4:
+ if self.__proxy[2] != None:
+ portnum = self.__proxy[2]
+ else:
+ portnum = 1080
+ _orgsocket.connect(self,(self.__proxy[1], portnum))
+ self.__negotiatesocks4(destpair[0], destpair[1])
+ elif self.__proxy[0] == PROXY_TYPE_HTTP:
+ if self.__proxy[2] != None:
+ portnum = self.__proxy[2]
+ else:
+ portnum = 8080
+ _orgsocket.connect(self,(self.__proxy[1], portnum))
+ self.__negotiatehttp(destpair[0], destpair[1])
+ elif self.__proxy[0] == None:
+ _orgsocket.connect(self, (destpair[0], destpair[1]))
+ else:
+ raise GeneralProxyError((4, _generalerrors[4]))