[Python-modules-commits] [python-socksipy] 01/10: import 1.02 from Debian package

Wolfgang Borgert debacle at moszumanska.debian.org
Fri Jan 8 00:26:33 UTC 2016


This is an automated email from the git hooks/post-receive script.

debacle pushed a commit to branch master
in repository python-socksipy.

commit 7270a5c1727d757b2123042f043ab7fd789371d7
Author: W. Martin Borgert <debacle at debian.org>
Date:   Mon Dec 28 00:21:23 2015 +0100

    import 1.02 from Debian package
---
 BUGS     |  25 +++++
 LICENSE  |  22 ++++
 PKG-INFO |  10 ++
 README   | 201 +++++++++++++++++++++++++++++++++
 setup.py |  17 +++
 socks.py | 387 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 662 insertions(+)

diff --git a/BUGS b/BUGS
new file mode 100644
index 0000000..2412351
--- /dev/null
+++ b/BUGS
@@ -0,0 +1,25 @@
+SocksiPy version 1.00
+A Python SOCKS module.
+(C) 2006 Dan-Haim. All rights reserved.
+See LICENSE file for details.
+
+
+KNOWN BUGS AND ISSUES
+----------------------
+
+There are no currently known bugs in this module.
+There are some limits though:
+
+1) Only outgoing connections are supported - This module currently only supports
+outgoing TCP connections, though some servers may support incoming connections
+as well. UDP is not supported either.
+
+2) GSSAPI Socks5 authenticaion is not supported.
+
+
+If you find any new bugs, please contact the author at:
+
+negativeiq at users.sourceforge.net
+
+
+Thank you!
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..fc33078
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+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.
diff --git a/PKG-INFO b/PKG-INFO
new file mode 100644
index 0000000..e24da45
--- /dev/null
+++ b/PKG-INFO
@@ -0,0 +1,10 @@
+Metadata-Version: 1.0
+Name: SocksiPy-branch
+Version: 1.02
+Summary: A Python SOCKS module
+Home-page: http://socksipy.sourceforge.net/
+Author: Dan-Haim
+Author-email: negativeiq at users.sourceforge.net
+License: BSD
+Description: This Python module allows you to create TCP connections through a SOCKS proxy without any special effort.
+Platform: UNKNOWN
diff --git a/README b/README
new file mode 100644
index 0000000..deae6f6
--- /dev/null
+++ b/README
@@ -0,0 +1,201 @@
+SocksiPy version 1.00
+A Python SOCKS module.
+(C) 2006 Dan-Haim. All rights reserved.
+See LICENSE file for details.
+
+
+WHAT IS A SOCKS PROXY?
+A SOCKS proxy is a proxy server at the TCP level. In other words, it acts as
+a tunnel, relaying all traffic going through it without modifying it.
+SOCKS proxies can be used to relay traffic using any network protocol that
+uses TCP.
+
+WHAT IS SOCKSIPY?
+This Python module allows you to create TCP connections through a SOCKS
+proxy without any special effort.
+
+PROXY COMPATIBILITY
+SocksiPy is compatible with three different types of proxies:
+1. SOCKS Version 4 (Socks4), including the Socks4a extension.
+2. SOCKS Version 5 (Socks5).
+3. HTTP Proxies which support tunneling using the CONNECT method.
+
+SYSTEM REQUIREMENTS
+Being written in Python, SocksiPy can run on any platform that has a Python
+interpreter and TCP/IP support.
+This module has been tested with Python 2.3 and should work with greater versions
+just as well.
+
+
+INSTALLATION
+-------------
+
+Simply copy the file "socks.py" to your Python's lib/site-packages directory,
+and you're ready to go.
+
+
+USAGE
+------
+
+First load the socks module with the command:
+
+>>> import socks
+>>>
+
+The socks module provides a class called "socksocket", which is the base to
+all of the module's functionality.
+The socksocket object has the same initialization parameters as the normal socket
+object to ensure maximal compatibility, however it should be noted that socksocket
+will only function with family being AF_INET and type being SOCK_STREAM.
+Generally, it is best to initialize the socksocket object with no parameters
+
+>>> s = socks.socksocket()
+>>>
+
+The socksocket object has an interface which is very similiar to socket's (in fact
+the socksocket class is derived from socket) with a few extra methods.
+To select the proxy server you would like to use, use the setproxy method, whose
+syntax is:
+
+setproxy(proxytype, addr[, port[, rdns[, username[, password]]]])
+
+Explaination of the parameters:
+
+proxytype - The type of the proxy server. This can be one of three possible
+choices: PROXY_TYPE_SOCKS4, PROXY_TYPE_SOCKS5 and PROXY_TYPE_HTTP for Socks4,
+Socks5 and HTTP servers respectively.
+
+addr - The IP address or DNS name of the proxy server.
+
+port - The port of the proxy server. Defaults to 1080 for socks and 8080 for http.
+
+rdns - This is a boolean flag than modifies the behavior regarding DNS resolving.
+If it is set to True, DNS resolving will be preformed remotely, on the server.
+If it is set to False, DNS resolving will be preformed locally. Please note that
+setting this to True with Socks4 servers actually use an extension to the protocol,
+called Socks4a, which may not be supported on all servers (Socks5 and http servers
+always support DNS). The default is True.
+
+username - For Socks5 servers, this allows simple username / password authentication
+with the server. For Socks4 servers, this parameter will be sent as the userid.
+This parameter is ignored if an HTTP server is being used. If it is not provided,
+authentication will not be used (servers may accept unauthentication requests).
+
+password - This parameter is valid only for Socks5 servers and specifies the
+respective password for the username provided.
+
+Example of usage:
+
+>>> s.setproxy(socks.PROXY_TYPE_SOCKS5,"socks.example.com")
+>>>
+
+After the setproxy method has been called, simply call the connect method with the
+traditional parameters to establish a connection through the proxy:
+
+>>> s.connect(("www.sourceforge.net",80))
+>>>
+
+Connection will take a bit longer to allow negotiation with the proxy server.
+Please note that calling connect without calling setproxy earlier will connect
+without a proxy (just like a regular socket).
+
+Errors: Any errors in the connection process will trigger exceptions. The exception
+may either be generated by the underlying socket layer or may be custom module
+exceptions, whose details follow:
+
+class ProxyError - This is a base exception class. It is not raised directly but
+rather all other exception classes raised by this module are derived from it.
+This allows an easy way to catch all proxy-related errors.
+
+class GeneralProxyError - When thrown, it indicates a problem which does not fall
+into another category. The parameter is a tuple containing an error code and a
+description of the error, from the following list:
+1 - invalid data - This error means that unexpected data has been received from
+the server. The most common reason is that the server specified as the proxy is
+not really a Socks4/Socks5/HTTP proxy, or maybe the proxy type specified is wrong.
+4 - bad proxy type - This will be raised if the type of the proxy supplied to the
+setproxy function was not PROXY_TYPE_SOCKS4/PROXY_TYPE_SOCKS5/PROXY_TYPE_HTTP.
+5 - bad input - This will be raised if the connect method is called with bad input
+parameters.
+
+class Socks5AuthError - This indicates that the connection through a Socks5 server
+failed due to an authentication problem. The parameter is a tuple containing a
+code and a description message according to the following list:
+
+1 - authentication is required - This will happen if you use a Socks5 server which
+requires authentication without providing a username / password at all.
+2 - all offered authentication methods were rejected - This will happen if the proxy
+requires a special authentication method which is not supported by this module.
+3 - unknown username or invalid password - Self descriptive.
+
+class Socks5Error - This will be raised for Socks5 errors which are not related to
+authentication. The parameter is a tuple containing a code and a description of the
+error, as given by the server. The possible errors, according to the RFC are:
+
+1 - General SOCKS server failure - If for any reason the proxy server is unable to
+fulfill your request (internal server error).
+2 - connection not allowed by ruleset - If the address you're trying to connect to
+is blacklisted on the server or requires authentication.
+3 - Network unreachable - The target could not be contacted. A router on the network
+had replied with a destination net unreachable error.
+4 - Host unreachable - The target could not be contacted. A router on the network
+had replied with a destination host unreachable error.
+5 - Connection refused - The target server has actively refused the connection
+(the requested port is closed).
+6 - TTL expired - The TTL value of the SYN packet from the proxy to the target server
+has expired. This usually means that there are network problems causing the packet
+to be caught in a router-to-router "ping-pong".
+7 - Command not supported - The client has issued an invalid command. When using this
+module, this error should not occur.
+8 - Address type not supported - The client has provided an invalid address type.
+When using this module, this error should not occur.
+
+class Socks4Error - This will be raised for Socks4 errors. The parameter is a tuple
+containing a code and a description of the error, as given by the server. The
+possible error, according to the specification are:
+
+1 - Request rejected or failed - Will be raised in the event of an failure for any
+reason other then the two mentioned next.
+2 - request rejected because SOCKS server cannot connect to identd on the client -
+The Socks server had tried an ident lookup on your computer and has failed. In this
+case you should run an identd server and/or configure your firewall to allow incoming
+connections to local port 113 from the remote server.
+3 - request rejected because the client program and identd report different user-ids - 
+The Socks server had performed an ident lookup on your computer and has received a
+different userid than the one you have provided. Change your userid (through the
+username parameter of the setproxy method) to match and try again.
+
+class HTTPError - This will be raised for HTTP errors. The parameter is a tuple
+containing the HTTP status code and the description of the server.
+
+
+After establishing the connection, the object behaves like a standard socket.
+Call the close method to close the connection.
+
+In addition to the socksocket class, an additional function worth mentioning is the
+setdefaultproxy function. The parameters are the same as the setproxy method.
+This function will set default proxy settings for newly created socksocket objects,
+in which the proxy settings haven't been changed via the setproxy method.
+This is quite useful if you wish to force 3rd party modules to use a socks proxy,
+by overriding the socket object.
+For example:
+
+>>> socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5,"socks.example.com")
+>>> socket.socket = socks.socksocket
+>>> urllib.urlopen("http://www.sourceforge.net/")
+
+
+PROBLEMS
+---------
+
+If you have any problems using this module, please first refer to the BUGS file
+(containing current bugs and issues). If your problem is not mentioned you may
+contact the author at the following E-Mail address:
+
+negativeiq at users.sourceforge.net
+
+Please allow some time for your question to be received and handled.
+
+
+Dan-Haim,
+Author.
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..abc6867
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+from distutils.core import setup
+
+VERSION = "1.02"
+
+setup(
+name = "SocksiPy-branch",
+version = VERSION,
+description = "A Python SOCKS module",
+long_description = "This Python module allows you to create TCP connections through a SOCKS proxy without any special effort.",
+url = "http://socksipy.sourceforge.net/",
+author = "Dan-Haim",
+author_email="negativeiq at users.sourceforge.net",
+license = "BSD",
+py_modules=["socks"]
+)
+
diff --git a/socks.py b/socks.py
new file mode 100644
index 0000000..4e513fe
--- /dev/null
+++ b/socks.py
@@ -0,0 +1,387 @@
+"""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
+                if type(destaddr) != type(b''): # python3
+                    destaddr_bytes = destaddr.encode()
+                    # TODO: support "xn--" prefixes as defined by RFC 3490
+                else:
+                    destaddr_bytes = destaddr
+                req = req + chr(0x03).encode() + chr(len(destaddr_bytes)).encode() + destaddr_bytes
+            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]))

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/python-modules/packages/python-socksipy.git



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