citizenaspirant/PyBitmessage
1
0
Fork 0
Code Issues 1 Pull Requests Releases Wiki Activity

Remove obsolete helper_bootstrap and bundled SocksiPy

Browse Source
This commit is contained in:
Dmitri Bogomolov 2019-08-01 15:28:32 +03:00
parent bcb29facaa
commit 6a0c3ae075
Signed by untrusted user: g1itch
GPG Key ID: 720A756F18DEED13
6 changed files with 0 additions and 809 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
setup.py
View File

@ -70,7 +70,6 @@ if __name__ == "__main__":
'pybitmessage.network',
'pybitmessage.plugins',
'pybitmessage.pyelliptic',
'pybitmessage.socks',
'pybitmessage.storage'
]

84
src/helper_bootstrap.py
View File

@ -1,84 +0,0 @@
import socket
import knownnodes
import socks
import state
from bmconfigparser import BMConfigParser
from debug import logger
def dns():
"""
DNS bootstrap. This could be programmed to use the SOCKS proxy to do the
DNS lookup some day but for now we will just rely on the entries in
defaultKnownNodes.py. Hopefully either they are up to date or the user
has run Bitmessage recently without SOCKS turned on and received good
bootstrap nodes using that method.
"""
def try_add_known_node(stream, addr, port, method=''):
try:
socket.inet_aton(addr)
except (TypeError, socket.error):
return
logger.info(
'Adding %s to knownNodes based on %s DNS bootstrap method',
addr, method)
knownnodes.addKnownNode(stream, state.Peer(addr, port))
proxy_type = BMConfigParser().get('bitmessagesettings', 'socksproxytype')
if proxy_type == 'none':
for port in [8080, 8444]:
try:
for item in socket.getaddrinfo(
'bootstrap%s.bitmessage.org' % port, 80):
try_add_known_node(1, item[4][0], port)
except:
logger.error(
'bootstrap%s.bitmessage.org DNS bootstrapping failed.',
port, exc_info=True
)
elif proxy_type == 'SOCKS5':
knownnodes.createDefaultKnownNodes(onion=True)
logger.debug('Adding default onion knownNodes.')
for port in [8080, 8444]:
logger.debug("Resolving %i through SOCKS...", port)
address_family = socket.AF_INET
sock = socks.socksocket(address_family, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.settimeout(20)
proxytype = socks.PROXY_TYPE_SOCKS5
sockshostname = BMConfigParser().get(
'bitmessagesettings', 'sockshostname')
socksport = BMConfigParser().getint(
'bitmessagesettings', 'socksport')
# Do domain name lookups through the proxy;
# though this setting doesn't really matter since we won't
# be doing any domain name lookups anyway.
rdns = True
if BMConfigParser().getboolean(
'bitmessagesettings', 'socksauthentication'):
socksusername = BMConfigParser().get(
'bitmessagesettings', 'socksusername')
sockspassword = BMConfigParser().get(
'bitmessagesettings', 'sockspassword')
sock.setproxy(
proxytype, sockshostname, socksport, rdns,
socksusername, sockspassword)
else:
sock.setproxy(
proxytype, sockshostname, socksport, rdns)
try:
ip = sock.resolve("bootstrap" + str(port) + ".bitmessage.org")
sock.shutdown(socket.SHUT_RDWR)
sock.close()
except:
logger.error("SOCKS DNS resolving failed", exc_info=True)
else:
try_add_known_node(1, ip, port, 'SOCKS')
else:
logger.info(
'DNS bootstrap skipped because the proxy type does not support'
' DNS resolution.'
)

25
src/socks/BUGS
View File

@ -1,25 +0,0 @@
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@users.sourceforge.net
Thank you!

22
src/socks/LICENSE
View File

@ -1,22 +0,0 @@
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.

201
src/socks/README
View File

@ -1,201 +0,0 @@
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@users.sourceforge.net
Please allow some time for your question to be received and handled.
Dan-Haim,
Author.

476
src/socks/__init__.py
View File

@ -1,476 +0,0 @@
"""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",
"timed out",
"network unreachable",
"connection refused",
"host unreachable")
_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.
"""
try:
data = self.recv(count)
except socket.timeout:
raise GeneralProxyError((6, "timed out"))
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):
"""__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]))
def __connectsocks5(self, destaddr, destport):
# 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 __resolvesocks5(self, host):
# Now we can request the actual connection
req = struct.pack('BBB', 0x05, 0xF0, 0x00)
req += chr(0x03).encode() + chr(len(host)).encode() + host
req = req + struct.pack(">H", 8444)
self.sendall(req)
# Get the response
ip = ""
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():
ip = socket.inet_ntoa(self.__recvall(4))
elif resp[3:4] == chr(0x03).encode():
resp = resp + self.recv(1)
ip = self.__recvall(ord(resp[4:5]))
else:
self.close()
raise GeneralProxyError((1,_generalerrors[1]))
boundport = struct.unpack(">H", self.__recvall(2))[0]
return ip
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 getproxytype(self):
return self.__proxy[0]
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
try:
_orgsocket.connect(self, (self.__proxy[1], portnum))
except socket.error as e:
# ENETUNREACH, WSAENETUNREACH
if e[0] in [101, 10051]:
raise GeneralProxyError((7, _generalerrors[7]))
# ECONNREFUSED, WSAECONNREFUSED
if e[0] in [111, 10061]:
raise GeneralProxyError((8, _generalerrors[8]))
# EHOSTUNREACH, WSAEHOSTUNREACH
if e[0] in [113, 10065]:
raise GeneralProxyError((9, _generalerrors[9]))
raise
self.__negotiatesocks5()
self.__connectsocks5(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
try:
_orgsocket.connect(self,(self.__proxy[1], portnum))
except socket.error as e:
# ENETUNREACH, WSAENETUNREACH
if e[0] in [101, 10051]:
raise GeneralProxyError((7, _generalerrors[7]))
# ECONNREFUSED, WSAECONNREFUSED
if e[0] in [111, 10061]:
raise GeneralProxyError((8, _generalerrors[8]))
# EHOSTUNREACH, WSAEHOSTUNREACH
if e[0] in [113, 10065]:
raise GeneralProxyError((9, _generalerrors[9]))
raise
self.__negotiatehttp(destpair[0], destpair[1])
elif self.__proxy[0] == None:
_orgsocket.connect(self, (destpair[0], destpair[1]))
else:
raise GeneralProxyError((4, _generalerrors[4]))
def resolve(self, host):
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()
return self.__resolvesocks5(host)
else:
return None