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proxy.py
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#!/usr/bin/env python
# coding:utf-8
# Based on GAppProxy 2.0.0 by Du XiaoGang <dugang.2008@gmail.com>
# Based on WallProxy 0.4.0 by Hust Moon <www.ehust@gmail.com>
# Contributor:
# Phus Lu <phus.lu@gmail.com>
# Hewig Xu <hewigovens@gmail.com>
# Ayanamist Yang <ayanamist@gmail.com>
# V.E.O <V.E.O@tom.com>
# Max Lv <max.c.lv@gmail.com>
# AlsoTang <alsotang@gmail.com>
# Christopher Meng <i@cicku.me>
# Yonsm Guo <YonsmGuo@gmail.com>
# Parkman <cseparkman@gmail.com>
# Ming Bai <mbbill@gmail.com>
# Bin Yu <yubinlove1991@gmail.com>
# lileixuan <lileixuan@gmail.com>
# Cong Ding <cong@cding.org>
# Zhang Youfu <zhangyoufu@gmail.com>
# Lu Wei <luwei@barfoo>
# Harmony Meow <harmony.meow@gmail.com>
# logostream <logostream@gmail.com>
# Rui Wang <isnowfy@gmail.com>
# Wang Wei Qiang <wwqgtxx@gmail.com>
# Felix Yan <felixonmars@gmail.com>
# Sui Feng <suifeng.me@qq.com>
# QXO <qxodream@gmail.com>
# Geek An <geekan@foxmail.com>
# Poly Rabbit <mcx_221@foxmail.com>
# oxnz <yunxinyi@gmail.com>
# Shusen Liu <liushusen.smart@gmail.com>
# Yad Smood <y.s.inside@gmail.com>
# Chen Shuang <cs0x7f@gmail.com>
# cnfuyu <cnfuyu@gmail.com>
# cuixin <steven.cuixin@gmail.com>
# s2marine0 <s2marine0@gmail.com>
# Toshio Xiang <snachx@gmail.com>
__version__ = '3.1.6'
import sys
import os
import glob
sys.dont_write_bytecode = True
sys.path += glob.glob('%s/*.egg' % os.path.dirname(os.path.abspath(__file__)))
try:
import gevent
import gevent.socket
import gevent.server
import gevent.queue
import gevent.monkey
gevent.monkey.patch_all(subprocess=True)
except ImportError:
gevent = None
except TypeError:
gevent.monkey.patch_all()
sys.stderr.write('\033[31m Warning: Please update gevent to the latest 1.0 version!\033[0m\n')
import errno
import binascii
import time
import struct
import collections
import zlib
import functools
import itertools
import re
import io
import fnmatch
import traceback
import random
import subprocess
import base64
import string
import hashlib
import threading
import thread
import socket
import ssl
import select
import Queue
import SocketServer
import ConfigParser
import BaseHTTPServer
import httplib
import urllib2
import urlparse
try:
import dnslib
except ImportError:
dnslib = None
try:
import OpenSSL
except ImportError:
OpenSSL = None
try:
import pacparser
except ImportError:
pacparser = None
HAS_PYPY = hasattr(sys, 'pypy_version_info')
NetWorkIOError = (socket.error, ssl.SSLError, OSError) if not OpenSSL else (socket.error, ssl.SSLError, OpenSSL.SSL.Error, OSError)
class Logging(type(sys)):
CRITICAL = 50
FATAL = CRITICAL
ERROR = 40
WARNING = 30
WARN = WARNING
INFO = 20
DEBUG = 10
NOTSET = 0
def __init__(self, *args, **kwargs):
self.level = self.__class__.INFO
self.__set_error_color = lambda: None
self.__set_warning_color = lambda: None
self.__set_debug_color = lambda: None
self.__reset_color = lambda: None
if hasattr(sys.stderr, 'isatty') and sys.stderr.isatty():
if os.name == 'nt':
import ctypes
SetConsoleTextAttribute = ctypes.windll.kernel32.SetConsoleTextAttribute
GetStdHandle = ctypes.windll.kernel32.GetStdHandle
self.__set_error_color = lambda: SetConsoleTextAttribute(GetStdHandle(-11), 0x04)
self.__set_warning_color = lambda: SetConsoleTextAttribute(GetStdHandle(-11), 0x06)
self.__set_debug_color = lambda: SetConsoleTextAttribute(GetStdHandle(-11), 0x002)
self.__reset_color = lambda: SetConsoleTextAttribute(GetStdHandle(-11), 0x07)
elif os.name == 'posix':
self.__set_error_color = lambda: sys.stderr.write('\033[31m')
self.__set_warning_color = lambda: sys.stderr.write('\033[33m')
self.__set_debug_color = lambda: sys.stderr.write('\033[32m')
self.__reset_color = lambda: sys.stderr.write('\033[0m')
@classmethod
def getLogger(cls, *args, **kwargs):
return cls(*args, **kwargs)
def basicConfig(self, *args, **kwargs):
self.level = int(kwargs.get('level', self.__class__.INFO))
if self.level > self.__class__.DEBUG:
self.debug = self.dummy
def log(self, level, fmt, *args, **kwargs):
sys.stderr.write('%s - [%s] %s\n' % (level, time.ctime()[4:-5], fmt % args))
def dummy(self, *args, **kwargs):
pass
def debug(self, fmt, *args, **kwargs):
self.__set_debug_color()
self.log('DEBUG', fmt, *args, **kwargs)
self.__reset_color()
def info(self, fmt, *args, **kwargs):
self.log('INFO', fmt, *args)
def warning(self, fmt, *args, **kwargs):
self.__set_warning_color()
self.log('WARNING', fmt, *args, **kwargs)
self.__reset_color()
def warn(self, fmt, *args, **kwargs):
self.warning(fmt, *args, **kwargs)
def error(self, fmt, *args, **kwargs):
self.__set_error_color()
self.log('ERROR', fmt, *args, **kwargs)
self.__reset_color()
def exception(self, fmt, *args, **kwargs):
self.error(fmt, *args, **kwargs)
sys.stderr.write(traceback.format_exc() + '\n')
def critical(self, fmt, *args, **kwargs):
self.__set_error_color()
self.log('CRITICAL', fmt, *args, **kwargs)
self.__reset_color()
logging = sys.modules['logging'] = Logging('logging')
class LRUCache(object):
"""http://pypi.python.org/pypi/lru/"""
def __init__(self, max_items=100):
self.cache = {}
self.key_order = []
self.max_items = max_items
def __setitem__(self, key, value):
self.cache[key] = value
self._mark(key)
def __getitem__(self, key):
value = self.cache[key]
self._mark(key)
return value
def _mark(self, key):
if key in self.key_order:
self.key_order.remove(key)
self.key_order.insert(0, key)
if len(self.key_order) > self.max_items:
remove = self.key_order[self.max_items]
del self.cache[remove]
self.key_order.pop(self.max_items)
def clear(self):
self.cache = {}
self.key_order = []
class CertUtil(object):
"""CertUtil module, based on mitmproxy"""
ca_vendor = 'GoAgent'
ca_keyfile = 'CA.crt'
ca_certdir = 'certs'
ca_lock = threading.Lock()
@staticmethod
def create_ca():
key = OpenSSL.crypto.PKey()
key.generate_key(OpenSSL.crypto.TYPE_RSA, 2048)
ca = OpenSSL.crypto.X509()
ca.set_serial_number(0)
ca.set_version(2)
subj = ca.get_subject()
subj.countryName = 'CN'
subj.stateOrProvinceName = 'Internet'
subj.localityName = 'Cernet'
subj.organizationName = CertUtil.ca_vendor
subj.organizationalUnitName = '%s Root' % CertUtil.ca_vendor
subj.commonName = '%s CA' % CertUtil.ca_vendor
ca.gmtime_adj_notBefore(0)
ca.gmtime_adj_notAfter(24 * 60 * 60 * 3652)
ca.set_issuer(ca.get_subject())
ca.set_pubkey(key)
ca.add_extensions([
OpenSSL.crypto.X509Extension(b'basicConstraints', True, b'CA:TRUE'),
OpenSSL.crypto.X509Extension(b'nsCertType', True, b'sslCA'),
OpenSSL.crypto.X509Extension(b'extendedKeyUsage', True, b'serverAuth,clientAuth,emailProtection,timeStamping,msCodeInd,msCodeCom,msCTLSign,msSGC,msEFS,nsSGC'),
OpenSSL.crypto.X509Extension(b'keyUsage', False, b'keyCertSign, cRLSign'),
OpenSSL.crypto.X509Extension(b'subjectKeyIdentifier', False, b'hash', subject=ca), ])
ca.sign(key, 'sha1')
return key, ca
@staticmethod
def dump_ca():
key, ca = CertUtil.create_ca()
with open(CertUtil.ca_keyfile, 'wb') as fp:
fp.write(OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM, ca))
fp.write(OpenSSL.crypto.dump_privatekey(OpenSSL.crypto.FILETYPE_PEM, key))
@staticmethod
def _get_cert(commonname, sans=()):
with open(CertUtil.ca_keyfile, 'rb') as fp:
content = fp.read()
key = OpenSSL.crypto.load_privatekey(OpenSSL.crypto.FILETYPE_PEM, content)
ca = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, content)
pkey = OpenSSL.crypto.PKey()
pkey.generate_key(OpenSSL.crypto.TYPE_RSA, 2048)
req = OpenSSL.crypto.X509Req()
subj = req.get_subject()
subj.countryName = 'CN'
subj.stateOrProvinceName = 'Internet'
subj.localityName = 'Cernet'
subj.organizationalUnitName = '%s Branch' % CertUtil.ca_vendor
if commonname[0] == '.':
subj.commonName = '*' + commonname
subj.organizationName = '*' + commonname
sans = ['*'+commonname] + [x for x in sans if x != '*'+commonname]
else:
subj.commonName = commonname
subj.organizationName = commonname
sans = [commonname] + [x for x in sans if x != commonname]
#req.add_extensions([OpenSSL.crypto.X509Extension(b'subjectAltName', True, ', '.join('DNS: %s' % x for x in sans)).encode()])
req.set_pubkey(pkey)
req.sign(pkey, 'sha1')
cert = OpenSSL.crypto.X509()
cert.set_version(2)
try:
cert.set_serial_number(int(hashlib.md5(commonname.encode('utf-8')).hexdigest(), 16))
except OpenSSL.SSL.Error:
cert.set_serial_number(int(time.time()*1000))
cert.gmtime_adj_notBefore(0)
cert.gmtime_adj_notAfter(60 * 60 * 24 * 3652)
cert.set_issuer(ca.get_subject())
cert.set_subject(req.get_subject())
cert.set_pubkey(req.get_pubkey())
if commonname[0] == '.':
sans = ['*'+commonname] + [s for s in sans if s != '*'+commonname]
else:
sans = [commonname] + [s for s in sans if s != commonname]
#cert.add_extensions([OpenSSL.crypto.X509Extension(b'subjectAltName', True, ', '.join('DNS: %s' % x for x in sans))])
cert.sign(key, 'sha1')
certfile = os.path.join(CertUtil.ca_certdir, commonname + '.crt')
with open(certfile, 'wb') as fp:
fp.write(OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM, cert))
fp.write(OpenSSL.crypto.dump_privatekey(OpenSSL.crypto.FILETYPE_PEM, pkey))
return certfile
@staticmethod
def get_cert(commonname, sans=()):
if commonname.count('.') >= 2 and [len(x) for x in reversed(commonname.split('.'))] > [2, 4]:
commonname = '.'+commonname.partition('.')[-1]
certfile = os.path.join(CertUtil.ca_certdir, commonname + '.crt')
if os.path.exists(certfile):
return certfile
elif OpenSSL is None:
return CertUtil.ca_keyfile
else:
with CertUtil.ca_lock:
if os.path.exists(certfile):
return certfile
return CertUtil._get_cert(commonname, sans)
@staticmethod
def import_ca(certfile):
commonname = os.path.splitext(os.path.basename(certfile))[0]
if OpenSSL:
try:
with open(certfile, 'rb') as fp:
x509 = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, fp.read())
commonname = next(v.decode() for k, v in x509.get_subject().get_components() if k == b'O')
except Exception as e:
logging.error('load_certificate(certfile=%r) failed:%s', certfile, e)
if sys.platform.startswith('win'):
import ctypes
with open(certfile, 'rb') as fp:
certdata = fp.read()
if certdata.startswith(b'-----'):
begin = b'-----BEGIN CERTIFICATE-----'
end = b'-----END CERTIFICATE-----'
certdata = base64.b64decode(b''.join(certdata[certdata.find(begin)+len(begin):certdata.find(end)].strip().splitlines()))
crypt32 = ctypes.WinDLL(b'crypt32.dll'.decode())
store_handle = crypt32.CertOpenStore(10, 0, 0, 0x4000 | 0x20000, b'ROOT'.decode())
if not store_handle:
return -1
if crypt32.CertFindCertificateInStore(store_handle, 0x1, 0, 0x80007, CertUtil.ca_vendor.decode(), None):
return 0
ret = crypt32.CertAddEncodedCertificateToStore(store_handle, 0x1, certdata, len(certdata), 4, None)
crypt32.CertCloseStore(store_handle, 0)
del crypt32
return 0 if ret else -1
elif sys.platform == 'darwin':
return os.system(('security find-certificate -a -c "%s" | grep "%s" >/dev/null || security add-trusted-cert -d -r trustRoot -k "/Library/Keychains/System.keychain" "%s"' % (commonname, commonname, certfile.decode('utf-8'))).encode('utf-8'))
elif sys.platform.startswith('linux'):
import platform
platform_distname = platform.dist()[0]
if platform_distname == 'Ubuntu':
pemfile = "/etc/ssl/certs/%s.pem" % commonname
new_certfile = "/usr/local/share/ca-certificates/%s.crt" % commonname
if not os.path.exists(pemfile):
return os.system('cp "%s" "%s" && update-ca-certificates' % (certfile, new_certfile))
elif any(os.path.isfile('%s/certutil' % x) for x in os.environ['PATH'].split(os.pathsep)):
return os.system('certutil -L -d sql:$HOME/.pki/nssdb | grep "%s" || certutil -d sql:$HOME/.pki/nssdb -A -t "C,," -n "%s" -i "%s"' % (commonname, commonname, certfile))
else:
logging.warning('please install *libnss3-tools* package to import GoAgent root ca')
return 0
@staticmethod
def check_ca():
#Check CA exists
capath = os.path.join(os.path.dirname(os.path.abspath(__file__)), CertUtil.ca_keyfile)
certdir = os.path.join(os.path.dirname(os.path.abspath(__file__)), CertUtil.ca_certdir)
if not os.path.exists(capath):
if not OpenSSL:
logging.critical('CA.key is not exist and OpenSSL is disabled, ABORT!')
sys.exit(-1)
if os.path.exists(certdir):
if os.path.isdir(certdir):
any(os.remove(x) for x in glob.glob(certdir+'/*.crt')+glob.glob(certdir+'/.*.crt'))
else:
os.remove(certdir)
os.mkdir(certdir)
CertUtil.dump_ca()
if glob.glob('%s/*.key' % CertUtil.ca_certdir):
for filename in glob.glob('%s/*.key' % CertUtil.ca_certdir):
try:
os.remove(filename)
os.remove(os.path.splitext(filename)[0]+'.crt')
except EnvironmentError:
pass
#Check CA imported
if CertUtil.import_ca(capath) != 0:
logging.warning('install root certificate failed, Please run as administrator/root/sudo')
#Check Certs Dir
if not os.path.exists(certdir):
os.makedirs(certdir)
class SSLConnection(object):
has_gevent = socket.socket is getattr(sys.modules.get('gevent.socket'), 'socket', None)
def __init__(self, context, sock):
self._context = context
self._sock = sock
self._connection = OpenSSL.SSL.Connection(context, sock)
self._makefile_refs = 0
if self.has_gevent:
self._wait_read = gevent.socket.wait_read
self._wait_write = gevent.socket.wait_write
self._wait_readwrite = gevent.socket.wait_readwrite
else:
self._wait_read = lambda fd,t: select.select([fd], [], [fd], t)
self._wait_write = lambda fd,t: select.select([], [fd], [fd], t)
self._wait_readwrite = lambda fd,t: select.select([fd], [fd], [fd], t)
def __getattr__(self, attr):
if attr not in ('_context', '_sock', '_connection', '_makefile_refs'):
return getattr(self._connection, attr)
def accept(self):
sock, addr = self._sock.accept()
client = OpenSSL.SSL.Connection(sock._context, sock)
return client, addr
def do_handshake(self):
timeout = self._sock.gettimeout()
while True:
try:
self._connection.do_handshake()
break
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantX509LookupError, OpenSSL.SSL.WantWriteError):
sys.exc_clear()
self._wait_readwrite(self._sock.fileno(), timeout)
def connect(self, *args, **kwargs):
timeout = self._sock.gettimeout()
while True:
try:
self._connection.connect(*args, **kwargs)
break
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantX509LookupError):
sys.exc_clear()
self._wait_read(self._sock.fileno(), timeout)
except OpenSSL.SSL.WantWriteError:
sys.exc_clear()
self._wait_write(self._sock.fileno(), timeout)
def send(self, data, flags=0):
timeout = self._sock.gettimeout()
while True:
try:
self._connection.send(data, flags)
break
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantX509LookupError):
sys.exc_clear()
self._wait_read(self._sock.fileno(), timeout)
except OpenSSL.SSL.WantWriteError:
sys.exc_clear()
self._wait_write(self._sock.fileno(), timeout)
except OpenSSL.SSL.SysCallError as e:
if e[0] == -1 and not data:
# errors when writing empty strings are expected and can be ignored
return 0
raise
def recv(self, bufsiz, flags=0):
timeout = self._sock.gettimeout()
pending = self._connection.pending()
if pending:
return self._connection.recv(min(pending, bufsiz))
while True:
try:
return self._connection.recv(bufsiz, flags)
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantX509LookupError):
sys.exc_clear()
self._wait_read(self._sock.fileno(), timeout)
except OpenSSL.SSL.WantWriteError:
sys.exc_clear()
self._wait_write(self._sock.fileno(), timeout)
except OpenSSL.SSL.ZeroReturnError:
return ''
def read(self, bufsiz, flags=0):
return self.recv(bufsiz, flags)
def write(self, buf, flags=0):
return self.sendall(buf, flags)
def close(self):
if self._makefile_refs < 1:
self._connection = None
if self._sock:
socket.socket.close(self._sock)
else:
self._makefile_refs -= 1
def makefile(self, mode='r', bufsize=-1):
self._makefile_refs += 1
return socket._fileobject(self, mode, bufsize, close=True)
class ProxyUtil(object):
"""ProxyUtil module, based on urllib2"""
@staticmethod
def parse_proxy(proxy):
return urllib2._parse_proxy(proxy)
@staticmethod
def get_system_proxy():
proxies = urllib2.getproxies()
return proxies.get('https') or proxies.get('http') or {}
@staticmethod
def get_listen_ip():
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.connect(('8.8.8.8', 53))
listen_ip = sock.getsockname()[0]
sock.close()
return listen_ip
class PacUtil(object):
"""GoAgent Pac Util"""
@staticmethod
def update_pacfile(filename):
listen_ip = ProxyUtil.get_listen_ip() if common.LISTEN_IP in ('', '::', '0.0.0.0') else common.LISTEN_IP
autoproxy = '%s:%s' % (listen_ip, common.LISTEN_PORT)
blackhole = '%s:%s' % (listen_ip, common.PAC_PORT)
default = 'PROXY %s:%s' % (common.PROXY_HOST, common.PROXY_PORT) if common.PROXY_ENABLE else 'DIRECT'
opener = urllib2.build_opener(urllib2.ProxyHandler({'http': autoproxy, 'https': autoproxy}))
content = ''
need_update = True
with open(filename, 'rb') as fp:
content = fp.read()
try:
placeholder = '// AUTO-GENERATED RULES, DO NOT MODIFY!'
content = content[:content.index(placeholder)+len(placeholder)]
content = re.sub(r'''blackhole\s*=\s*['"]PROXY [\.\w:]+['"]''', 'blackhole = \'PROXY %s\'' % blackhole, content)
content = re.sub(r'''autoproxy\s*=\s*['"]PROXY [\.\w:]+['"]''', 'autoproxy = \'PROXY %s\'' % autoproxy, content)
content = re.sub(r'''defaultproxy\s*=\s*['"](DIRECT|PROXY [\.\w:]+)['"]''', 'defaultproxy = \'%s\'' % default, content)
content = re.sub(r'''host\s*==\s*['"][\.\w:]+['"]\s*\|\|\s*isPlainHostName''', 'host == \'%s\' || isPlainHostName' % listen_ip, content)
if content.startswith('//'):
line = '// Proxy Auto-Config file generated by autoproxy2pac, %s\r\n' % time.strftime('%Y-%m-%d %H:%M:%S')
content = line + '\r\n'.join(content.splitlines()[1:])
except ValueError:
need_update = False
try:
if common.PAC_ADBLOCK:
logging.info('try download %r to update_pacfile(%r)', common.PAC_ADBLOCK, filename)
adblock_content = opener.open(common.PAC_ADBLOCK).read()
logging.info('%r downloaded, try convert it with adblock2pac', common.PAC_ADBLOCK)
if 'gevent' in sys.modules and time.sleep is getattr(sys.modules['gevent'], 'sleep', None) and hasattr(gevent.get_hub(), 'threadpool'):
jsrule = gevent.get_hub().threadpool.apply_e(Exception, PacUtil.adblock2pac, (adblock_content, 'FindProxyForURLByAdblock', blackhole, default))
else:
jsrule = PacUtil.adblock2pac(adblock_content, 'FindProxyForURLByAdblock', blackhole, default)
content += '\r\n' + jsrule + '\r\n'
logging.info('%r downloaded and parsed', common.PAC_ADBLOCK)
else:
content += '\r\nfunction FindProxyForURLByAdblock(url, host) {return "DIRECT";}\r\n'
except Exception as e:
need_update = False
logging.exception('update_pacfile failed: %r', e)
try:
logging.info('try download %r to update_pacfile(%r)', common.PAC_GFWLIST, filename)
autoproxy_content = base64.b64decode(opener.open(common.PAC_GFWLIST).read())
logging.info('%r downloaded, try convert it with autoproxy2pac_lite', common.PAC_GFWLIST)
if 'gevent' in sys.modules and time.sleep is getattr(sys.modules['gevent'], 'sleep', None) and hasattr(gevent.get_hub(), 'threadpool'):
jsrule = gevent.get_hub().threadpool.apply_e(Exception, PacUtil.autoproxy2pac_lite, (autoproxy_content, 'FindProxyForURLByAutoProxy', autoproxy, default))
else:
jsrule = PacUtil.autoproxy2pac_lite(autoproxy_content, 'FindProxyForURLByAutoProxy', autoproxy, default)
content += '\r\n' + jsrule + '\r\n'
logging.info('%r downloaded and parsed', common.PAC_GFWLIST)
except Exception as e:
need_update = False
logging.exception('update_pacfile failed: %r', e)
if need_update:
with open(filename, 'wb') as fp:
fp.write(content)
logging.info('%r successfully updated', filename)
@staticmethod
def autoproxy2pac(content, func_name='FindProxyForURLByAutoProxy', proxy='127.0.0.1:8087', default='DIRECT', indent=4):
"""Autoproxy to Pac, based on https://github.com/iamamac/autoproxy2pac"""
jsLines = []
for line in content.splitlines()[1:]:
if line and not line.startswith("!"):
use_proxy = True
if line.startswith("@@"):
line = line[2:]
use_proxy = False
return_proxy = 'PROXY %s' % proxy if use_proxy else default
if line.startswith('/') and line.endswith('/'):
jsLine = 'if (/%s/i.test(url)) return "%s";' % (line[1:-1], return_proxy)
elif line.startswith('||'):
domain = line[2:].lstrip('.')
if len(jsLines) > 0 and ('host.indexOf(".%s") >= 0' % domain in jsLines[-1] or 'host.indexOf("%s") >= 0' % domain in jsLines[-1]):
jsLines.pop()
jsLine = 'if (dnsDomainIs(host, ".%s") || host == "%s") return "%s";' % (domain, domain, return_proxy)
elif line.startswith('|'):
jsLine = 'if (url.indexOf("%s") == 0) return "%s";' % (line[1:], return_proxy)
elif '*' in line:
jsLine = 'if (shExpMatch(url, "*%s*")) return "%s";' % (line.strip('*'), return_proxy)
elif '/' not in line:
jsLine = 'if (host.indexOf("%s") >= 0) return "%s";' % (line, return_proxy)
else:
jsLine = 'if (url.indexOf("%s") >= 0) return "%s";' % (line, return_proxy)
jsLine = ' ' * indent + jsLine
if use_proxy:
jsLines.append(jsLine)
else:
jsLines.insert(0, jsLine)
function = 'function %s(url, host) {\r\n%s\r\n%sreturn "%s";\r\n}' % (func_name, '\n'.join(jsLines), ' '*indent, default)
return function
@staticmethod
def autoproxy2pac_lite(content, func_name='FindProxyForURLByAutoProxy', proxy='127.0.0.1:8087', default='DIRECT', indent=4):
"""Autoproxy to Pac, based on https://github.com/iamamac/autoproxy2pac"""
direct_domain_set = set([])
proxy_domain_set = set([])
for line in content.splitlines()[1:]:
if line and not line.startswith(('!', '|!', '||!')):
use_proxy = True
if line.startswith("@@"):
line = line[2:]
use_proxy = False
domain = ''
if line.startswith('/') and line.endswith('/'):
line = line[1:-1]
if line.startswith('^https?:\\/\\/[^\\/]+') and re.match(r'^(\w|\\\-|\\\.)+$', line[18:]):
domain = line[18:].replace(r'\.', '.')
else:
logging.warning('unsupport gfwlist regex: %r', line)
elif line.startswith('||'):
domain = line[2:].lstrip('*').rstrip('/')
elif line.startswith('|'):
domain = urlparse.urlparse(line[1:]).netloc.lstrip('*')
elif line.startswith(('http://', 'https://')):
domain = urlparse.urlparse(line).netloc.lstrip('*')
elif re.search(r'^([\w\-\_\.]+)([\*\/]|$)', line):
domain = re.split(r'[\*\/]', line)[0]
else:
pass
if '*' in domain:
domain = domain.split('*')[-1]
if not domain or re.match(r'^\w+$', domain):
logging.debug('unsupport gfwlist rule: %r', line)
continue
if use_proxy:
proxy_domain_set.add(domain)
else:
direct_domain_set.add(domain)
jsLines = ',\n'.join('%s"%s": 1' % (' '*indent, x.lstrip('.')) for x in proxy_domain_set)
template = '''\
var domainsFor%s = {
%s
};
function %s(url, host) {
var lastPos;
do {
if (domainsFor%s.hasOwnProperty(host)) {
return 'PROXY %s';
}
lastPos = host.indexOf('.') + 1;
host = host.slice(lastPos);
} while (lastPos >= 1);
return '%s';
}'''
template = re.sub(r'(?m)^\s{%d}' % min(len(re.search(r' +', x).group()) for x in template.splitlines()), '', template)
return template % (func_name, jsLines, func_name, func_name, proxy, default)
@staticmethod
def urlfilter2pac(content, func_name='FindProxyForURLByUrlfilter', proxy='127.0.0.1:8086', default='DIRECT', indent=4):
"""urlfilter.ini to Pac, based on https://github.com/iamamac/autoproxy2pac"""
jsLines = []
for line in content[content.index('[exclude]'):].splitlines()[1:]:
if line and not line.startswith(';'):
use_proxy = True
if line.startswith("@@"):
line = line[2:]
use_proxy = False
return_proxy = 'PROXY %s' % proxy if use_proxy else default
if '*' in line:
jsLine = 'if (shExpMatch(url, "%s")) return "%s";' % (line, return_proxy)
else:
jsLine = 'if (url == "%s") return "%s";' % (line, return_proxy)
jsLine = ' ' * indent + jsLine
if use_proxy:
jsLines.append(jsLine)
else:
jsLines.insert(0, jsLine)
function = 'function %s(url, host) {\r\n%s\r\n%sreturn "%s";\r\n}' % (func_name, '\n'.join(jsLines), ' '*indent, default)
return function
@staticmethod
def adblock2pac(content, func_name='FindProxyForURLByAdblock', proxy='127.0.0.1:8086', default='DIRECT', indent=4):
"""adblock list to Pac, based on https://github.com/iamamac/autoproxy2pac"""
white_conditions = []
black_conditions = []
for line in content.splitlines()[1:]:
if not line or line.startswith('!') or '##' in line or '#@#' in line:
continue
use_proxy = True
use_start = False
use_end = False
use_domain = False
use_postfix = []
if '$' in line:
posfixs = line.split('$')[-1].split(',')
if any('domain' in x for x in posfixs):
continue
if 'image' in posfixs:
use_postfix += ['.jpg', '.gif']
elif 'script' in posfixs:
use_postfix += ['.js']
else:
continue
line = line.split('$')[0]
if line.startswith("@@"):
line = line[2:]
use_proxy = False
if '||' == line[:2]:
line = line[2:]
if '/' not in line:
use_domain = True
else:
if not line.startswith(('http://', 'https://')):
line = 'http://' + line
use_start = True
elif '|' == line[0]:
line = line[1:]
if not line.startswith(('http://', 'https://')):
line = 'http://' + line
use_start = True
if line[-1] in ('^', '|'):
line = line[:-1]
if not use_postfix:
use_end = True
line = line.replace('^', '*').strip('*')
if use_start and use_end:
if '*' in line:
jsCondition = ['shExpMatch(url, "%s")' % line]
else:
jsCondition = ['url == "%s"' % line]
elif use_start:
if '*' in line:
if use_postfix:
jsCondition = ['shExpMatch(url, "%s*%s")' % (line, x) for x in use_postfix]
else:
jsCondition = ['shExpMatch(url, "%s*")' % line]
else:
jsCondition = ['url.indexOf("%s") == 0' % line]
elif use_domain and use_end:
if '*' in line:
jsCondition = ['shExpMatch(host, "%s*")' % line]
else:
jsCondition = ['host == "%s"' % line]
elif use_domain:
if line.split('/')[0].count('.') <= 1:
if use_postfix:
jsCondition = ['shExpMatch(url, "http://*.%s*%s")' % (line, x) for x in use_postfix]
else:
jsCondition = ['shExpMatch(url, "http://*.%s*")' % line]
else:
if '*' in line:
if use_postfix:
jsCondition = ['shExpMatch(url, "http://%s*%s")' % (line, x) for x in use_postfix]
else:
jsCondition = ['shExpMatch(url, "http://%s*")' % line]
else:
if use_postfix:
jsCondition = ['shExpMatch(url, "http://%s*%s")' % (line, x) for x in use_postfix]
else:
jsCondition = ['url.indexOf("http://%s") == 0' % line]
else:
if use_postfix:
jsCondition = ['shExpMatch(url, "*%s*%s")' % (line, x) for x in use_postfix]
else:
jsCondition = ['shExpMatch(url, "*%s*")' % line]
if use_proxy:
black_conditions += jsCondition
else:
white_conditions += jsCondition
black_lines = ' ||\r\n'.join('%s%s' % (' '*(4+indent), x.replace('**', '*')) for x in black_conditions).strip()
white_lines = ' ||\r\n'.join('%s%s' % (' '*(4+indent), x.replace('**', '*')) for x in white_conditions).strip()
template = '''\
function %s(url, host) {
if (%s) {
return "%s";
}
if (%s) {
return "PROXY %s";
}
return "%s";
}'''
template = re.sub(r'(?m)^\s{%d}' % min(len(re.search(r' +', x).group()) for x in template.splitlines()), '', template)
return template % (func_name, white_lines, default, black_lines, proxy, default)
def dns_remote_resolve(qname, dnsservers, blacklist, timeout):
"""
http://gfwrev.blogspot.com/2009/11/gfwdns.html
http://zh.wikipedia.org/wiki/域名服务器缓存污染
http://support.microsoft.com/kb/241352
"""
query = dnslib.DNSRecord(q=dnslib.DNSQuestion(qname))
query_data = query.pack()
dns_v4_servers = [x for x in dnsservers if ':' not in x]
dns_v6_servers = [x for x in dnsservers if ':' in x]
sock_v4 = sock_v6 = None
socks = []
if dns_v4_servers:
sock_v4 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
socks.append(sock_v4)
if dns_v6_servers:
sock_v6 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
socks.append(sock_v6)
timeout_at = time.time() + timeout
try:
for _ in xrange(2):
try:
for dnsserver in dns_v4_servers:
sock_v4.sendto(query_data, (dnsserver, 53))
for dnsserver in dns_v6_servers:
sock_v6.sendto(query_data, (dnsserver, 53))
while time.time() < timeout_at:
ins, _, _ = select.select(socks, [], [], 0.1)
for sock in ins:
reply_data, _ = sock.recvfrom(512)
reply = dnslib.DNSRecord.parse(reply_data)
rtypes = (1, 28) if sock is sock_v6 else (1,)
iplist = [str(x.rdata) for x in reply.rr if x.rtype in rtypes]
if any(x in blacklist for x in iplist):
logging.warning('query qname=%r reply bad iplist=%r', qname, iplist)
else:
logging.debug('query qname=%r reply iplist=%s', qname, iplist)
return iplist
except socket.error as e:
logging.warning('handle dns query=%s socket: %r', query, e)
finally:
for sock in socks:
sock.close()
def get_dnsserver_list():
if os.name == 'nt':
import ctypes, ctypes.wintypes, struct, socket
DNS_CONFIG_DNS_SERVER_LIST = 6
buf = ctypes.create_string_buffer(2048)
ctypes.windll.dnsapi.DnsQueryConfig(DNS_CONFIG_DNS_SERVER_LIST, 0, None, None, ctypes.byref(buf), ctypes.byref(ctypes.wintypes.DWORD(len(buf))))
ips = struct.unpack('I', buf[0:4])[0]
out = []
for i in xrange(ips):
start = (i+1) * 4
out.append(socket.inet_ntoa(buf[start:start+4]))
return out
elif os.path.isfile('/etc/resolv.conf'):
with open('/etc/resolv.conf', 'rb') as fp:
return re.findall(r'(?m)^nameserver\s+(\S+)', fp.read())
else:
logging.warning("get_dnsserver_list failed: unsupport platform '%s-%s'", sys.platform, os.name)
return []
def spawn_later(seconds, target, *args, **kwargs):
def wrap(*args, **kwargs):
__import__('time').sleep(seconds)
return target(*args, **kwargs)
return __import__('thread').start_new_thread(wrap, args, kwargs)
class HTTPUtil(object):
"""HTTP Request Class"""
MessageClass = dict
protocol_version = 'HTTP/1.1'
skip_headers = frozenset(['Vary', 'Via', 'X-Forwarded-For', 'Proxy-Authorization', 'Proxy-Connection', 'Upgrade', 'X-Chrome-Variations', 'Connection', 'Cache-Control'])
ssl_validate = False
ssl_obfuscate = False
ssl_ciphers = ':'.join(['ECDHE-ECDSA-AES256-SHA',
'ECDHE-RSA-AES256-SHA',
'DHE-RSA-CAMELLIA256-SHA',
'DHE-DSS-CAMELLIA256-SHA',
'DHE-RSA-AES256-SHA',
'DHE-DSS-AES256-SHA',
'ECDH-RSA-AES256-SHA',
'ECDH-ECDSA-AES256-SHA',
'CAMELLIA256-SHA',
'AES256-SHA',
'ECDHE-ECDSA-RC4-SHA',
'ECDHE-ECDSA-AES128-SHA',
'ECDHE-RSA-RC4-SHA',
'ECDHE-RSA-AES128-SHA',
'DHE-RSA-CAMELLIA128-SHA',
'DHE-DSS-CAMELLIA128-SHA',
'DHE-RSA-AES128-SHA',
'DHE-DSS-AES128-SHA',
'ECDH-RSA-RC4-SHA',
'ECDH-RSA-AES128-SHA',
'ECDH-ECDSA-RC4-SHA',
'ECDH-ECDSA-AES128-SHA',
'SEED-SHA',
'CAMELLIA128-SHA',
'RC4-SHA',
'RC4-MD5',
'AES128-SHA',
'ECDHE-ECDSA-DES-CBC3-SHA',
'ECDHE-RSA-DES-CBC3-SHA',
'EDH-RSA-DES-CBC3-SHA',
'EDH-DSS-DES-CBC3-SHA',
'ECDH-RSA-DES-CBC3-SHA',
'ECDH-ECDSA-DES-CBC3-SHA',
'DES-CBC3-SHA',
'TLS_EMPTY_RENEGOTIATION_INFO_SCSV'])
def __init__(self, max_window=4, max_timeout=8, max_retry=4, proxy='', dns_servers=[], dns_blacklist=set()):
# http://docs.python.org/dev/library/ssl.html
# http://blog.ivanristic.com/2009/07/examples-of-the-information-collected-from-ssl-handshakes.html
# http://src.chromium.org/svn/trunk/src/net/third_party/nss/ssl/sslenum.c
# http://www.openssl.org/docs/apps/ciphers.html
# openssl s_server -accept 443 -key CA.crt -cert CA.crt
# set_ciphers as Modern Browsers
self.max_window = max_window
self.max_retry = max_retry
self.max_timeout = max_timeout
self.tcp_connection_time = collections.defaultdict(float)
self.tcp_connection_cache = collections.defaultdict(Queue.PriorityQueue)
self.ssl_connection_time = collections.defaultdict(float)
self.ssl_connection_cache = collections.defaultdict(Queue.PriorityQueue)
self.dns = {}
self.proxy = proxy
self.openssl_context = None
if self.proxy:
self.dns_resolve = self.__dns_resolve_withproxy
self.create_connection = self.__create_connection_withproxy
self.create_ssl_connection = self.__create_ssl_connection_withproxy
self.dns_servers = dns_servers
self.dns_blacklist = dns_blacklist
def set_openssl_option(self, validate=True, obfuscate=True):
if self.openssl_context is None:
self.openssl_context = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_METHOD)
self.openssl_context.set_session_id(binascii.b2a_hex(os.urandom(10)))
if hasattr(OpenSSL.SSL, 'SESS_CACHE_BOTH'):
self.openssl_context.set_session_cache_mode(OpenSSL.SSL.SESS_CACHE_BOTH)
if validate:
self.openssl_context.load_verify_locations(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'cacert.pem'))
self.openssl_context.set_verify(OpenSSL.SSL.VERIFY_PEER, lambda c, x, e, d, ok: ok)
if obfuscate:
ssl_ciphers = ':'.join(x for x in self.ssl_ciphers.split(':') if random.random() > 0.5)
self.openssl_context.set_cipher_list(ssl_ciphers)
def dns_resolve(self, host, dnsservers=[], ipv4_only=True):
iplist = self.dns.get(host)
if not iplist:
if not dnsservers:
iplist = list(set(socket.gethostbyname_ex(host)[-1]) - self.dns_blacklist)
else:
iplist = dns_remote_resolve(host, dnsservers, self.dns_blacklist, timeout=2)
if not iplist:
iplist = dns_remote_resolve(host, self.dns_servers, self.dns_blacklist, timeout=2)
if ipv4_only:
iplist = [ip for ip in iplist if re.match(r'\d+\.\d+\.\d+\.\d+', ip)]
self.dns[host] = iplist = list(set(iplist))
return iplist
def __dns_resolve_withproxy(self, host, dnsservers=[], ipv4_only=True):
return [host]
def create_connection(self, address, timeout=None, source_address=None, **kwargs):
connection_cache_key = kwargs.get('cache_key')
def _create_connection(ipaddr, timeout, queobj):
sock = None
try:
# create a ipv4/ipv6 socket object
sock = socket.socket(socket.AF_INET if ':' not in ipaddr[0] else socket.AF_INET6)
# set reuseaddr option to avoid 10048 socket error
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# resize socket recv buffer 8K->32K to improve browser releated application performance
sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 32*1024)
# disable nagle algorithm to send http request quickly.
sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, True)
# set a short timeout to trigger timeout retry more quickly.
sock.settimeout(timeout or self.max_timeout)
# start connection time record
start_time = time.time()
# TCP connect
sock.connect(ipaddr)
# record TCP connection time
self.tcp_connection_time[ipaddr] = time.time() - start_time
# put ssl socket object to output queobj
queobj.put(sock)
except (socket.error, OSError) as e:
# any socket.error, put Excpetions to output queobj.
queobj.put(e)