mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-20 18:02:53 +08:00
[socks] Add socks.py from @bluec0re's public domain implementation
https://gist.github.com/bluec0re/cafd3764412967417fd3
This commit is contained in:
Yen Chi Hsuan
parent
2937590e8b
commit
4350b74545
336
youtube_dl/socks.py
Normal file
336
youtube_dl/socks.py
Normal file
@ -0,0 +1,336 @@
|
||||
# This is free and unencumbered software released into the public domain.
|
||||
#
|
||||
# Anyone is free to copy, modify, publish, use, compile, sell, or
|
||||
# distribute this software, either in source code form or as a compiled
|
||||
# binary, for any purpose, commercial or non-commercial, and by any
|
||||
# means.
|
||||
#
|
||||
# In jurisdictions that recognize copyright laws, the author or authors
|
||||
# of this software dedicate any and all copyright interest in the
|
||||
# software to the public domain. We make this dedication for the benefit
|
||||
# of the public at large and to the detriment of our heirs and
|
||||
# successors. We intend this dedication to be an overt act of
|
||||
# relinquishment in perpetuity of all present and future rights to this
|
||||
# software under copyright law.
|
||||
#
|
||||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
||||
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||||
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||||
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||
# OTHER DEALINGS IN THE SOFTWARE.
|
||||
#
|
||||
# For more information, please refer to <http://unlicense.org/>
|
||||
#
|
||||
# Example:
|
||||
# import socks
|
||||
# import ftplib
|
||||
# import socket
|
||||
#
|
||||
# socks.patch_socket()
|
||||
#
|
||||
# f = ftplib.FTP('ftp.kernel.org')
|
||||
# f.login()
|
||||
# print f.retrlines('LIST')
|
||||
# f.quit()
|
||||
#
|
||||
# s = socket.create_connection(('www.google.com', 80))
|
||||
# s.sendall('HEAD / HTTP/1.0\r\n\r\n')
|
||||
# print s.recv(1024)
|
||||
# s.close()
|
||||
from __future__ import unicode_literals
|
||||
import os
|
||||
import struct
|
||||
import socket
|
||||
import time
|
||||
|
||||
__author__ = 'Timo Schmid <coding@timoschmid.de>'
|
||||
|
||||
_orig_socket = socket.socket
|
||||
|
||||
try:
|
||||
from collections import namedtuple
|
||||
except ImportError:
|
||||
from Collections import namedtuple
|
||||
|
||||
try:
|
||||
from urllib.parse import urlparse
|
||||
except:
|
||||
from urlparse import urlparse
|
||||
|
||||
try:
|
||||
from enum import Enum
|
||||
except ImportError:
|
||||
Enum = object
|
||||
|
||||
|
||||
class ProxyError(IOError): pass
|
||||
class Socks4Error(ProxyError):
|
||||
CODES = {
|
||||
0x5B: 'request rejected or failed',
|
||||
0x5C: 'request rejected becasue SOCKS server cannot connect to identd on the client',
|
||||
0x5D: 'request rejected because the client program and identd report different user-ids'
|
||||
}
|
||||
def __init__(self, code=None, msg=None):
|
||||
if code is not None and msg is None:
|
||||
msg = self.CODES.get(code)
|
||||
if msg is None:
|
||||
msg = 'unknown error'
|
||||
super(Socks4Error, self).__init__(code, msg)
|
||||
|
||||
class Socks5Error(Socks4Error):
|
||||
CODES = {
|
||||
0x01: 'general SOCKS server failure',
|
||||
0x02: 'connection not allowed by ruleset',
|
||||
0x03: 'Network unreachable',
|
||||
0x04: 'Host unreachable',
|
||||
0x05: 'Connection refused',
|
||||
0x06: 'TTL expired',
|
||||
0x07: 'Command not supported',
|
||||
0x08: 'Address type not supported',
|
||||
0xFE: 'unknown username or invalid password',
|
||||
0xFF: 'all offered authentication methods were rejected'
|
||||
}
|
||||
|
||||
class ProxyType(Enum):
|
||||
SOCKS4 = 0
|
||||
SOCKS4A = 1
|
||||
SOCKS5 = 2
|
||||
|
||||
Proxy = namedtuple('Proxy', ('type', 'host', 'port', 'username', 'password', 'remote_dns'))
|
||||
|
||||
_default_proxy = None
|
||||
|
||||
def setdefaultproxy(proxytype=None, addr=None, port=None, rdns=True, username=None, password=None, allow_env_override=True):
|
||||
global _default_proxy
|
||||
if allow_env_override:
|
||||
all_proxy = os.environ.get('ALL_PROXY', os.environ.get('all_proxy'))
|
||||
if all_proxy:
|
||||
all_proxy = urlparse(all_proxy)
|
||||
if all_proxy.scheme.startswith('socks'):
|
||||
if all_proxy.scheme == 'socks' or all_proxy.scheme == 'socks4':
|
||||
proxytype = ProxyType.SOCKS4
|
||||
elif all_proxy.scheme == 'socks4a':
|
||||
proxytype = ProxyType.SOCKS4A
|
||||
elif all_proxy.scheme == 'socks5':
|
||||
proxytype = ProxyType.SOCKS5
|
||||
addr = all_proxy.hostname
|
||||
port = all_proxy.port
|
||||
username = all_proxy.username
|
||||
password = all_proxy.password
|
||||
|
||||
if proxytype is not None:
|
||||
_default_proxy = Proxy(proxytype, addr, port, username, password, rdns)
|
||||
|
||||
|
||||
def wrap_socket(sock):
|
||||
return socksocket(_sock=sock._sock)
|
||||
|
||||
def wrap_module(module):
|
||||
if hasattr(module, 'socket'):
|
||||
sock = module.socket
|
||||
if isinstance(sock, socket.socket):
|
||||
module.socket = sockssocket
|
||||
elif hasattr(socket, 'socket'):
|
||||
socket.socket = sockssocket
|
||||
|
||||
def patch_socket():
|
||||
import sys
|
||||
if 'socket' not in sys.modules:
|
||||
import socket
|
||||
sys.modules['socket'].socket = sockssocket
|
||||
|
||||
|
||||
class sockssocket(socket.socket):
|
||||
def __init__(self, *args, **kwargs):
|
||||
self.__proxy = None
|
||||
if 'proxy' in kwargs:
|
||||
self.__proxy = kwargs['proxy']
|
||||
del kwargs['proxy']
|
||||
super(sockssocket, self).__init__(*args, **kwargs)
|
||||
|
||||
@property
|
||||
def _proxy(self):
|
||||
if self.__proxy:
|
||||
return self.__proxy
|
||||
return _default_proxy
|
||||
|
||||
@property
|
||||
def _proxy_port(self):
|
||||
if self._proxy:
|
||||
if self._proxy.port:
|
||||
return self._proxy.port
|
||||
return 1080
|
||||
return None
|
||||
|
||||
def setproxy(self, proxytype=None, addr=None, port=None, rdns=True, username=None, password=None):
|
||||
if proxytype is None:
|
||||
self.__proxy = None
|
||||
else:
|
||||
self.__proxy = Proxy(proxytype, addr, port, username, password, rdns)
|
||||
|
||||
def recvall(self, cnt):
|
||||
data = b''
|
||||
while len(data) < cnt:
|
||||
cur = self.recv(cnt - len(data))
|
||||
if not cur:
|
||||
raise IOError("{0} bytes missing".format(cnt-len(data)))
|
||||
data += cur
|
||||
return data
|
||||
|
||||
def _setup_socks4(self, address, is_4a=False):
|
||||
destaddr, port = address
|
||||
|
||||
try:
|
||||
ipaddr = socket.inet_aton(destaddr)
|
||||
except socket.error:
|
||||
if is_4a and self._proxy.remote_dns:
|
||||
ipaddr = struct.pack('!BBBB', 0, 0, 0, 0xFF)
|
||||
else:
|
||||
ipaddr = socket.inet_aton(socket.gethostbyname(destaddr))
|
||||
|
||||
packet = struct.pack('!BBH', 0x4, 0x1, port) + ipaddr
|
||||
if self._proxy.username:
|
||||
username = self._proxy.username
|
||||
if hasattr(username, 'encode'):
|
||||
username = username.encode()
|
||||
packet += struct.pack('!{0}s'.format(len(username)+1), username)
|
||||
else:
|
||||
packet += b'\x00'
|
||||
|
||||
if is_4a and self._proxy.remote_dns:
|
||||
if hasattr(destaddr, 'encode'):
|
||||
destaddr = destaddr.encode()
|
||||
packet += struct.pack('!{0}s'.format(len(destaddr)+1), destaddr)
|
||||
|
||||
self.sendall(packet)
|
||||
|
||||
packet = self.recvall(8)
|
||||
nbyte, resp_code, dstport, dsthost = struct.unpack('!BBHI', packet)
|
||||
|
||||
# check valid response
|
||||
if nbyte != 0x00:
|
||||
self.close()
|
||||
raise ProxyError(0, "Invalid response from server. Expected {0:02x} got {1:02x}".format(0, nbyte))
|
||||
|
||||
# access granted
|
||||
if resp_code != 0x5a:
|
||||
self.close()
|
||||
raise Socks4Error(resp_code)
|
||||
|
||||
def _setup_socks5(self, address):
|
||||
destaddr, port = address
|
||||
|
||||
try:
|
||||
ipaddr = socket.inet_aton(destaddr)
|
||||
except socket.error:
|
||||
if self._proxy.remote_dns:
|
||||
ipaddr = None
|
||||
else:
|
||||
ipaddr = socket.inet_aton(socket.gethostbyname(destaddr))
|
||||
|
||||
auth_methods = 1
|
||||
if self._proxy.username and self._proxy.password:
|
||||
# two auth methods available
|
||||
auth_methods = 2
|
||||
packet = struct.pack('!BBB', 0x5, auth_methods, 0x00) # no auth
|
||||
if self._proxy.username and self._proxy.password:
|
||||
packet += struct.pack('!B', 0x02) # user/pass auth
|
||||
|
||||
self.sendall(packet)
|
||||
|
||||
packet = self.recvall(2)
|
||||
version, method = struct.unpack('!BB', packet)
|
||||
|
||||
# check valid response
|
||||
if version != 0x05:
|
||||
self.close()
|
||||
raise ProxyError(0, "Invalid response from server. Expected {0:02x} got {1:02x}".format(5, version))
|
||||
|
||||
# no auth methods
|
||||
if method == 0xFF:
|
||||
self.close()
|
||||
raise Socks5Error(method)
|
||||
|
||||
# user/pass auth
|
||||
if method == 0x01:
|
||||
username = self._proxy.username
|
||||
if hasattr(username, 'encode'):
|
||||
username = username.encode()
|
||||
password = self._proxy.password
|
||||
if hasattr(password, 'encode'):
|
||||
password = password.encode()
|
||||
packet = struct.pack('!BB', 1, len(username)) + username
|
||||
packet += struct.pack('!B', len(password)) + password
|
||||
self.sendall(packet)
|
||||
|
||||
packet = self.recvall(2)
|
||||
version, status = struct.unpack('!BB', packet)
|
||||
|
||||
if version != 0x01:
|
||||
self.close()
|
||||
raise ProxyError(0, "Invalid response from server. Expected {0:02x} got {1:02x}".format(1, version))
|
||||
|
||||
if status != 0x00:
|
||||
self.close()
|
||||
raise Socks5Error(1)
|
||||
elif method == 0x00: # no auth
|
||||
pass
|
||||
|
||||
|
||||
packet = struct.pack('!BBB', 5, 1, 0)
|
||||
if ipaddr is None:
|
||||
if hasattr(destaddr, 'encode'):
|
||||
destaddr = destaddr.encode()
|
||||
packet += struct.pack('!BB', 3, len(destaddr)) + destaddr
|
||||
else:
|
||||
packet += struct.pack('!B', 1) + ipaddr
|
||||
packet += struct.pack('!H', port)
|
||||
|
||||
self.sendall(packet)
|
||||
|
||||
packet = self.recvall(4)
|
||||
version, status, _, atype = struct.unpack('!BBBB', packet)
|
||||
|
||||
if version != 0x05:
|
||||
self.close()
|
||||
raise ProxyError(0, "Invalid response from server. Expected {0:02x} got {1:02x}".format(5, version))
|
||||
|
||||
if status != 0x00:
|
||||
self.close()
|
||||
raise Socks5Error(status)
|
||||
|
||||
if atype == 0x01:
|
||||
destaddr = self.recvall(4)
|
||||
elif atype == 0x03:
|
||||
alen = struct.unpack('!B', self.recv(1))[0]
|
||||
destaddr = self.recvall(alen)
|
||||
elif atype == 0x04:
|
||||
destaddr = self.recvall(16)
|
||||
destport = struct.unpack('!H', self.recvall(2))[0]
|
||||
|
||||
def _make_proxy(self, connect_func, address):
|
||||
if self._proxy.type == ProxyType.SOCKS4:
|
||||
result = connect_func(self, (self._proxy.host, self._proxy_port))
|
||||
if result != 0 and result is not None:
|
||||
return result
|
||||
self._setup_socks4(address)
|
||||
elif self._proxy.type == ProxyType.SOCKS4A:
|
||||
result = connect_func(self, (self._proxy.host, self._proxy_port))
|
||||
if result != 0 and result is not None:
|
||||
return result
|
||||
self._setup_socks4(address, is_4a=True)
|
||||
elif self._proxy.type == ProxyType.SOCKS5:
|
||||
result = connect_func(self, (self._proxy.host, self._proxy_port))
|
||||
if result != 0 and result is not None:
|
||||
return result
|
||||
self._setup_socks5(address)
|
||||
else:
|
||||
return connect_func(self, address)
|
||||
|
||||
def connect(self, address):
|
||||
self._make_proxy(_orig_socket.connect, address)
|
||||
|
||||
def connect_ex(self, address):
|
||||
return self._make_proxy(_orig_socket.connect_ex, address)
|
||||
Loading…
Reference in New Issue
Block a user