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proxylib.py
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proxylib.py
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#!/usr/bin/env python
# coding:utf-8
__version__ = '1.1'
import sys
import os
import glob
import errno
import time
import struct
import collections
import binascii
import zlib
import itertools
import re
import fnmatch
import io
import random
import base64
import string
import hashlib
import threading
import thread
import socket
import ssl
import logging
import select
import Queue
import SocketServer
import BaseHTTPServer
import httplib
import urllib
import urllib2
import urlparse
import OpenSSL
import dnslib
gevent = sys.modules.get('gevent') or logging.warn('please enable gevent.')
# Re-add sslwrap to Python 2.7.9
import inspect
__ssl__ = __import__('ssl')
try:
_ssl = __ssl__._ssl
except AttributeError:
_ssl = __ssl__._ssl2
def new_sslwrap(sock, server_side=False, keyfile=None, certfile=None, cert_reqs=__ssl__.CERT_NONE, ssl_version=__ssl__.PROTOCOL_SSLv23, ca_certs=None, ciphers=None):
context = __ssl__.SSLContext(ssl_version)
context.verify_mode = cert_reqs or __ssl__.CERT_NONE
if ca_certs:
context.load_verify_locations(ca_certs)
if certfile:
context.load_cert_chain(certfile, keyfile)
if ciphers:
context.set_ciphers(ciphers)
caller_self = inspect.currentframe().f_back.f_locals['self']
return context._wrap_socket(sock, server_side=server_side, ssl_sock=caller_self)
if not hasattr(_ssl, 'sslwrap'):
_ssl.sslwrap = new_sslwrap
try:
from Crypto.Cipher.ARC4 import new as RC4Cipher
except ImportError:
logging.warn('Load Crypto.Cipher.ARC4 Failed, Use Pure Python Instead.')
class RC4Cipher(object):
def __init__(self, key):
x = 0
box = range(256)
for i, y in enumerate(box):
x = (x + y + ord(key[i % len(key)])) & 0xff
box[i], box[x] = box[x], y
self.__box = box
self.__x = 0
self.__y = 0
def encrypt(self, data):
out = []
out_append = out.append
x = self.__x
y = self.__y
box = self.__box
for char in data:
x = (x + 1) & 0xff
y = (y + box[x]) & 0xff
box[x], box[y] = box[y], box[x]
out_append(chr(ord(char) ^ box[(box[x] + box[y]) & 0xff]))
self.__x = x
self.__y = y
return ''.join(out)
class XORCipher(object):
"""XOR Cipher Class"""
def __init__(self, key):
self.__key_gen = itertools.cycle([ord(x) for x in key]).next
self.__key_xor = lambda s: ''.join(chr(ord(x) ^ self.__key_gen()) for x in s)
if len(key) == 1:
try:
from Crypto.Util.strxor import strxor_c
c = ord(key)
self.__key_xor = lambda s: strxor_c(s, c)
except ImportError:
logging.debug('Load Crypto.Util.strxor Failed, Use Pure Python Instead.\n')
def encrypt(self, data):
return self.__key_xor(data)
class CipherFileObject(object):
"""fileobj wrapper for cipher"""
def __init__(self, fileobj, cipher):
self.__fileobj = fileobj
self.__cipher = cipher
def __getattr__(self, attr):
if attr not in ('__fileobj', '__cipher'):
return getattr(self.__fileobj, attr)
def read(self, size=-1):
return self.__cipher.encrypt(self.__fileobj.read(size))
class CipherSocket(object):
"""socket wrapper for cipher"""
def __init__(self, sock, cipher):
self.__sock = fileobj
self.__cipher = cipher
def __getattr__(self, attr):
if attr not in ('__sock', '__cipher'):
return getattr(self.__sock, attr)
def recv(self, size):
data = self.__sock.recv(size)
return data and self.__cipher.encrypt(data)
def send(self, data, flags=0):
return data and self.__sock.send(self.__cipher.encrypt(data), flags)
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 __contains__(self, key):
return key in self.cache
def __len__(self):
return len(self.cache)
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:
index = self.max_items // 2
delitem = self.cache.__delitem__
key_order = self.key_order
any(delitem(key_order[x]) for x in xrange(index, len(key_order)))
self.key_order = self.key_order[:index]
def clear(self):
self.cache = {}
self.key_order = []
class CertUtility(object):
"""Cert Utility module, based on mitmproxy"""
def __init__(self, vendor, filename, dirname):
self.ca_vendor = vendor
self.ca_keyfile = filename
self.ca_thumbprint = ''
self.ca_certdir = dirname
self.ca_digest = 'sha1' if sys.platform == 'win32' and sys.getwindowsversion() < (6,) else 'sha256'
self.ca_lock = threading.Lock()
def create_ca(self):
key = OpenSSL.crypto.PKey()
key.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.organizationName = self.ca_vendor
subj.organizationalUnitName = self.ca_vendor
subj.commonName = self.ca_vendor
req.set_pubkey(key)
req.sign(key, self.ca_digest)
ca = OpenSSL.crypto.X509()
ca.set_serial_number(0)
ca.gmtime_adj_notBefore(0)
ca.gmtime_adj_notAfter(24 * 60 * 60 * 3652)
ca.set_issuer(req.get_subject())
ca.set_subject(req.get_subject())
ca.set_pubkey(req.get_pubkey())
ca.sign(key, 'sha1')
return key, ca
def dump_ca(self):
key, ca = self.create_ca()
with open(self.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))
def get_cert_serial_number(self, commonname):
assert self.ca_thumbprint
saltname = '%s|%s' % (self.ca_thumbprint, commonname)
return int(hashlib.md5(saltname.encode('utf-8')).hexdigest(), 16)
def _get_cert(self, commonname, sans=()):
with open(self.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 = self.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, self.ca_digest)
cert = OpenSSL.crypto.X509()
cert.set_version(2)
try:
cert.set_serial_number(self.get_cert_serial_number(commonname))
except OpenSSL.SSL.Error:
cert.set_serial_number(int(time.time()*1000))
cert.gmtime_adj_notBefore(-600) #avoid crt time error warning
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, self.ca_digest)
certfile = os.path.join(self.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
def get_cert(self, 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(self.ca_certdir, commonname + '.crt')
if os.path.exists(certfile):
return certfile
elif OpenSSL is None:
return self.ca_keyfile
else:
with self.ca_lock:
if os.path.exists(certfile):
return certfile
return self._get_cert(commonname, sans)
def import_ca(self, certfile):
commonname = os.path.splitext(os.path.basename(certfile))[0]
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
CERT_FIND_SUBJECT_STR = 0x00080007
CERT_FIND_HASH = 0x10000
X509_ASN_ENCODING = 0x00000001
class CRYPT_HASH_BLOB(ctypes.Structure):
_fields_ = [('cbData', ctypes.c_ulong), ('pbData', ctypes.c_char_p)]
assert self.ca_thumbprint
crypt_hash = CRYPT_HASH_BLOB(20, binascii.a2b_hex(self.ca_thumbprint.replace(':', '')))
crypt_handle = crypt32.CertFindCertificateInStore(store_handle, X509_ASN_ENCODING, 0, CERT_FIND_HASH, ctypes.byref(crypt_hash), None)
if crypt_handle:
crypt32.CertFreeCertificateContext(crypt_handle)
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
def remove_ca(self, name):
import ctypes
import ctypes.wintypes
class CERT_CONTEXT(ctypes.Structure):
_fields_ = [
('dwCertEncodingType', ctypes.wintypes.DWORD),
('pbCertEncoded', ctypes.POINTER(ctypes.wintypes.BYTE)),
('cbCertEncoded', ctypes.wintypes.DWORD),
('pCertInfo', ctypes.c_void_p),
('hCertStore', ctypes.c_void_p),]
crypt32 = ctypes.WinDLL(b'crypt32.dll'.decode())
store_handle = crypt32.CertOpenStore(10, 0, 0, 0x4000 | 0x20000, b'ROOT'.decode())
pCertCtx = crypt32.CertEnumCertificatesInStore(store_handle, None)
while pCertCtx:
certCtx = CERT_CONTEXT.from_address(pCertCtx)
certdata = ctypes.string_at(certCtx.pbCertEncoded, certCtx.cbCertEncoded)
cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_ASN1, certdata)
if hasattr(cert, 'get_subject'):
cert = cert.get_subject()
cert_name = next((v for k, v in cert.get_components() if k == 'CN'), '')
if cert_name and name.lower() == cert_name.split()[0].lower():
crypt32.CertDeleteCertificateFromStore(crypt32.CertDuplicateCertificateContext(pCertCtx))
pCertCtx = crypt32.CertEnumCertificatesInStore(store_handle, pCertCtx)
return 0
def check_ca(self):
#Check CA exists
capath = os.path.join(os.path.dirname(os.path.abspath(__file__)), self.ca_keyfile)
certdir = os.path.join(os.path.dirname(os.path.abspath(__file__)), self.ca_certdir)
if not os.path.exists(capath):
if os.path.exists(certdir):
any(os.remove(x) for x in glob.glob(certdir+'/*.crt')+glob.glob(certdir+'/.*.crt'))
if os.name == 'nt':
try:
self.remove_ca(self.ca_vendor)
except Exception as e:
logging.warning('self.remove_ca failed: %r', e)
self.dump_ca()
with open(capath, 'rb') as fp:
self.ca_thumbprint = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, fp.read()).digest('sha1')
#Check Certs
certfiles = glob.glob(certdir+'/*.crt')+glob.glob(certdir+'/.*.crt')
if certfiles:
filename = random.choice(certfiles)
commonname = os.path.splitext(os.path.basename(filename))[0]
with open(filename, 'rb') as fp:
serial_number = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM, fp.read()).get_serial_number()
if serial_number != self.get_cert_serial_number(commonname):
any(os.remove(x) for x in certfiles)
#Check CA imported
if self.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)
CertUtil = CertUtility('GoAgent', 'CA.crt', 'certs')
class SSLConnection(object):
"""OpenSSL Connection Wapper"""
def __init__(self, context, sock):
self._context = context
self._sock = sock
self._connection = OpenSSL.SSL.Connection(context, sock)
self._makefile_refs = 0
def __getattr__(self, attr):
if attr not in ('_context', '_sock', '_connection', '_makefile_refs'):
return getattr(self._connection, attr)
def __iowait(self, io_func, *args, **kwargs):
timeout = self._sock.gettimeout() or 0.1
fd = self._sock.fileno()
while True:
try:
return io_func(*args, **kwargs)
except (OpenSSL.SSL.WantReadError, OpenSSL.SSL.WantX509LookupError):
sys.exc_clear()
_, _, errors = select.select([fd], [], [fd], timeout)
if errors:
break
except OpenSSL.SSL.WantWriteError:
sys.exc_clear()
_, _, errors = select.select([], [fd], [fd], timeout)
if errors:
break
def accept(self):
sock, addr = self._sock.accept()
client = OpenSSL.SSL.Connection(sock._context, sock)
return client, addr
def do_handshake(self):
self.__iowait(self._connection.do_handshake)
def connect(self, *args, **kwargs):
return self.__iowait(self._connection.connect, *args, **kwargs)
def __send(self, data, flags=0):
try:
return self.__iowait(self._connection.send, data, flags)
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 __send_memoryview(self, data, flags=0):
if hasattr(data, 'tobytes'):
data = data.tobytes()
return self.__send(data, flags)
send = __send if sys.version_info >= (2, 7, 5) else __send_memoryview
def recv(self, bufsiz, flags=0):
pending = self._connection.pending()
if pending:
return self._connection.recv(min(pending, bufsiz))
try:
return self.__iowait(self._connection.recv, bufsiz, flags)
except OpenSSL.SSL.ZeroReturnError:
return ''
except OpenSSL.SSL.SysCallError as e:
if e[0] == -1 and 'Unexpected EOF' in e[1]:
# errors when reading empty strings are expected and can be ignored
return ''
raise
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)
@staticmethod
def context_builder(ssl_version='SSLv23', ca_certs=None, cipher_suites=('ALL', '!aNULL', '!eNULL')):
protocol_version = getattr(OpenSSL.SSL, '%s_METHOD' % ssl_version)
ssl_context = OpenSSL.SSL.Context(protocol_version)
if ca_certs:
ssl_context.load_verify_locations(os.path.abspath(ca_certs))
ssl_context.set_verify(OpenSSL.SSL.VERIFY_PEER, lambda c, x, e, d, ok: ok)
else:
ssl_context.set_verify(OpenSSL.SSL.VERIFY_NONE, lambda c, x, e, d, ok: ok)
ssl_context.set_cipher_list(':'.join(cipher_suites))
return ssl_context
def openssl_set_session_cache_mode(context, mode):
assert isinstance(context, OpenSSL.SSL.Context)
try:
import ctypes
SSL_CTRL_SET_SESS_CACHE_MODE = 44
SESS_CACHE_OFF = 0x0
SESS_CACHE_CLIENT = 0x1
SESS_CACHE_SERVER = 0x2
SESS_CACHE_BOTH = 0x3
c_mode = {'off':SESS_CACHE_OFF, 'client':SESS_CACHE_CLIENT, 'server':SESS_CACHE_SERVER, 'both':SESS_CACHE_BOTH}[mode.lower()]
if hasattr(context, 'set_session_cache_mode'):
context.set_session_cache_mode(c_mode)
elif OpenSSL.__version__ == '0.13':
# http://bazaar.launchpad.net/~exarkun/pyopenssl/release-0.13/view/head:/OpenSSL/ssl/context.h#L27
c_context = ctypes.c_void_p.from_address(id(context)+ctypes.sizeof(ctypes.c_int)+ctypes.sizeof(ctypes.c_voidp))
if os.name == 'nt':
# https://github.com/openssl/openssl/blob/92c78463720f71e47c251ffa58493e32cd793e13/ssl/ssl.h#L884
ctypes.c_int.from_address(c_context.value+ctypes.sizeof(ctypes.c_voidp)*7+ctypes.sizeof(ctypes.c_ulong)).value = c_mode
else:
import ctypes.util
# FIXME
# ctypes.cdll.LoadLibrary(ctypes.util.find_library('ssl')).SSL_CTX_ctrl(c_context, SSL_CTRL_SET_SESS_CACHE_MODE, c_mode, None)
except Exception as e:
logging.warning('openssl_set_session_cache_mode failed: %r', e)
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():
listen_ip = '127.0.0.1'
sock = None
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.connect(('8.8.8.8', 53))
listen_ip = sock.getsockname()[0]
except StandardError:
pass
finally:
if sock:
sock.close()
return listen_ip
def inflate(data):
return zlib.decompress(data, -zlib.MAX_WBITS)
def deflate(data):
return zlib.compress(data)[2:-4]
def message_html(title, banner, detail=''):
MESSAGE_TEMPLATE = '''
<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>$title</title>
<style><!--
body {font-family: arial,sans-serif}
div.nav {margin-top: 1ex}
div.nav A {font-size: 10pt; font-family: arial,sans-serif}
span.nav {font-size: 10pt; font-family: arial,sans-serif; font-weight: bold}
div.nav A,span.big {font-size: 12pt; color: #0000cc}
div.nav A {font-size: 10pt; color: black}
A.l:link {color: #6f6f6f}
A.u:link {color: green}
//--></style>
</head>
<body text=#000000 bgcolor=#ffffff>
<table border=0 cellpadding=2 cellspacing=0 width=100%>
<tr><td bgcolor=#3366cc><font face=arial,sans-serif color=#ffffff><b>Message From LocalProxy</b></td></tr>
<tr><td> </td></tr></table>
<blockquote>
<H1>$banner</H1>
$detail
<p>
</blockquote>
<table width=100% cellpadding=0 cellspacing=0><tr><td bgcolor=#3366cc><img alt="" width=1 height=4></td></tr></table>
</body></html>
'''
return string.Template(MESSAGE_TEMPLATE).substitute(title=title, banner=banner, detail=detail)
def parse_hostport(host, default_port=80):
m = re.match(r'(.+)[#](\d+)$', host)
if m:
return m.group(1).strip('[]'), int(m.group(2))
else:
return host.strip('[]'), default_port
def dnslib_resolve_over_udp(query, dnsservers, timeout, **kwargs):
"""
http://gfwrev.blogspot.com/2009/11/gfwdns.html
http://zh.wikipedia.org/wiki/%E5%9F%9F%E5%90%8D%E6%9C%8D%E5%8A%A1%E5%99%A8%E7%BC%93%E5%AD%98%E6%B1%A1%E6%9F%93
http://support.microsoft.com/kb/241352
https://gist.github.com/klzgrad/f124065c0616022b65e5
"""
if not isinstance(query, (basestring, dnslib.DNSRecord)):
raise TypeError('query argument requires string/DNSRecord')
blacklist = kwargs.get('blacklist', ())
blacklist_prefix = tuple(x for x in blacklist if x.endswith('.'))
turstservers = kwargs.get('turstservers', ())
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(4):
try:
for dnsserver in dns_v4_servers:
if isinstance(query, basestring):
if dnsserver in ('8.8.8.8', '8.8.4.4'):
query = '.'.join(x[:-1] + x[-1].upper() for x in query.split('.')).title()
query = dnslib.DNSRecord(q=dnslib.DNSQuestion(query))
query_data = query.pack()
if query.q.qtype == 1 and dnsserver in ('8.8.8.8', '8.8.4.4'):
query_data = query_data[:-5] + '\xc0\x04' + query_data[-4:]
sock_v4.sendto(query_data, parse_hostport(dnsserver, 53))
for dnsserver in dns_v6_servers:
if isinstance(query, basestring):
query = dnslib.DNSRecord(q=dnslib.DNSQuestion(query, qtype=dnslib.QTYPE.AAAA))
query_data = query.pack()
sock_v6.sendto(query_data, parse_hostport(dnsserver, 53))
while time.time() < timeout_at:
ins, _, _ = select.select(socks, [], [], 0.1)
for sock in ins:
reply_data, reply_address = sock.recvfrom(512)
reply_server = reply_address[0]
record = dnslib.DNSRecord.parse(reply_data)
iplist = [str(x.rdata) for x in record.rr if x.rtype in (1, 28, 255)]
if any(x in blacklist or x.startswith(blacklist_prefix) for x in iplist):
logging.warning('qname=%r dnsservers=%r record bad iplist=%r', query.q.qname, dnsservers, iplist)
elif record.header.rcode and not iplist and reply_server in turstservers:
logging.info('qname=%r trust reply_server=%r record rcode=%s', query.q.qname, reply_server, record.header.rcode)
return record
elif iplist:
logging.debug('qname=%r reply_server=%r record iplist=%s', query.q.qname, reply_server, iplist)
return record
else:
logging.debug('qname=%r reply_server=%r record null iplist=%s', query.q.qname, reply_server, iplist)
continue
except socket.error as e:
logging.warning('handle dns query=%s socket: %r', query, e)
raise socket.gaierror(11004, 'getaddrinfo %r from %r failed' % (query, dnsservers))
finally:
for sock in socks:
sock.close()
def dnslib_resolve_over_tcp(query, dnsservers, timeout, **kwargs):
"""dns query over tcp"""
if not isinstance(query, (basestring, dnslib.DNSRecord)):
raise TypeError('query argument requires string/DNSRecord')
blacklist = kwargs.get('blacklist', ())
blacklist_prefix = tuple(x for x in blacklist if x.endswith('.'))
def do_resolve(query, dnsserver, timeout, queobj):
if isinstance(query, basestring):
qtype = dnslib.QTYPE.AAAA if ':' in dnsserver else dnslib.QTYPE.A
query = dnslib.DNSRecord(q=dnslib.DNSQuestion(query, qtype=qtype))
query_data = query.pack()
sock_family = socket.AF_INET6 if ':' in dnsserver else socket.AF_INET
sock = socket.socket(sock_family)
rfile = None
try:
sock.settimeout(timeout or None)
sock.connect(parse_hostport(dnsserver, 53))
sock.send(struct.pack('>h', len(query_data)) + query_data)
rfile = sock.makefile('r', 1024)
reply_data_length = rfile.read(2)
if len(reply_data_length) < 2:
raise socket.gaierror(11004, 'getaddrinfo %r from %r failed' % (query.q.qname, dnsserver))
reply_data = rfile.read(struct.unpack('>h', reply_data_length)[0])
record = dnslib.DNSRecord.parse(reply_data)
iplist = [str(x.rdata) for x in record.rr if x.rtype in (1, 28, 255)]
if any(x in blacklist or x.startswith(blacklist_prefix) for x in iplist):
logging.debug('qname=%r dnsserver=%r record bad iplist=%r', query.q.qname, dnsserver, iplist)
raise socket.gaierror(11004, 'getaddrinfo %r from %r failed' % (query, dnsserver))
else:
logging.debug('qname=%r dnsserver=%r record iplist=%s', query.q.qname, dnsserver, iplist)
queobj.put(record)
except socket.error as e:
logging.debug('qname=%r dnsserver=%r failed %r', query.q.qname, dnsserver, e)
queobj.put(e)
finally:
if rfile:
rfile.close()
sock.close()
queobj = Queue.Queue()
for dnsserver in dnsservers:
thread.start_new_thread(do_resolve, (query, dnsserver, timeout, queobj))
for i in range(len(dnsservers)):
try:
result = queobj.get(timeout)
except Queue.Empty:
raise socket.gaierror(11004, 'getaddrinfo %r from %r failed' % (query, dnsservers))
if result and not isinstance(result, Exception):
return result
elif i == len(dnsservers) - 1:
logging.warning('dnslib_resolve_over_tcp %r with %s return %r', query, dnsservers, result)
raise socket.gaierror(11004, 'getaddrinfo %r from %r failed' % (query, dnsservers))
def dnslib_record2iplist(record):
"""convert dnslib.DNSRecord to iplist"""
assert isinstance(record, dnslib.DNSRecord)
iplist = [x for x in (str(r.rdata) for r in record.rr) if re.match(r'^\d+\.\d+\.\d+\.\d+$', x) or ':' in x]
return iplist
def get_dnsserver_list():
if os.name == 'nt':
import ctypes
import ctypes.wintypes
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))))
ipcount = struct.unpack('I', buf[0:4])[0]
iplist = [socket.inet_ntoa(buf[i:i+4]) for i in xrange(4, ipcount*4+4, 4)]
return iplist
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):
time.sleep(seconds)
return target(*args, **kwargs)
return thread.start_new_thread(wrap, args, kwargs)
def is_clienthello(data):
if len(data) < 20:
return False
if data.startswith('\x16\x03'):
# TLSv12/TLSv11/TLSv1/SSLv3
length, = struct.unpack('>h', data[3:5])
return len(data) == 5 + length
elif data[0] == '\x80' and data[2:4] == '\x01\x03':
# SSLv23
return len(data) == 2 + ord(data[1])
else:
return False
def extract_sni_name(packet):
if packet.startswith('\x16\x03'):
stream = io.BytesIO(packet)
stream.read(0x2b)
session_id_length = ord(stream.read(1))
stream.read(session_id_length)
cipher_suites_length, = struct.unpack('>h', stream.read(2))
stream.read(cipher_suites_length+2)
extensions_length, = struct.unpack('>h', stream.read(2))
# extensions = {}
while True:
data = stream.read(2)
if not data:
break
etype, = struct.unpack('>h', data)
elen, = struct.unpack('>h', stream.read(2))
edata = stream.read(elen)
if etype == 0:
server_name = edata[5:]
return server_name
def random_hostname():
word = ''.join(random.choice(('bcdfghjklmnpqrstvwxyz', 'aeiou')[x&1]) for x in xrange(random.randint(5, 10)))
gltd = random.choice(['org', 'com', 'net', 'gov', 'cn'])
return 'www.%s.%s' % (word, gltd)
def get_uptime():
if os.name == 'nt':
import ctypes
try:
tick = ctypes.windll.kernel32.GetTickCount64()
except AttributeError:
tick = ctypes.windll.kernel32.GetTickCount()
return tick / 1000.0
elif os.path.isfile('/proc/uptime'):
with open('/proc/uptime', 'rb') as fp:
uptime = fp.readline().strip().split()[0].strip()
return float(uptime)
elif any(os.path.isfile(os.path.join(x, 'uptime')) for x in os.environ['PATH'].split(os.pathsep)):
# http://www.opensource.apple.com/source/lldb/lldb-69/test/pexpect-2.4/examples/uptime.py
pattern = r'up\s+(.*?),\s+([0-9]+) users?,\s+load averages?: ([0-9]+\.[0-9][0-9]),?\s+([0-9]+\.[0-9][0-9]),?\s+([0-9]+\.[0-9][0-9])'
output = os.popen('uptime').read()
duration, _, _, _, _ = re.search(pattern, output).groups()
days, hours, mins = 0, 0, 0
if 'day' in duration:
m = re.search(r'([0-9]+)\s+day', duration)
days = int(m.group(1))
if ':' in duration:
m = re.search(r'([0-9]+):([0-9]+)', duration)
hours = int(m.group(1))
mins = int(m.group(2))
if 'min' in duration:
m = re.search(r'([0-9]+)\s+min', duration)
mins = int(m.group(1))
return days * 86400 + hours * 3600 + mins * 60
else:
#TODO: support other platforms
return None
def get_process_list():
import ctypes
Process = collections.namedtuple('Process', 'pid name exe')
process_list = []
if os.name == 'nt':
PROCESS_QUERY_INFORMATION = 0x0400
PROCESS_VM_READ = 0x0010
lpidProcess = (ctypes.c_ulong * 1024)()
cb = ctypes.sizeof(lpidProcess)
cbNeeded = ctypes.c_ulong()
ctypes.windll.psapi.EnumProcesses(ctypes.byref(lpidProcess), cb, ctypes.byref(cbNeeded))
nReturned = cbNeeded.value/ctypes.sizeof(ctypes.c_ulong())
pidProcess = [i for i in lpidProcess][:nReturned]
has_queryimage = hasattr(ctypes.windll.kernel32, 'QueryFullProcessImageNameA')
for pid in pidProcess:
hProcess = ctypes.windll.kernel32.OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, pid)
if hProcess:
modname = ctypes.create_string_buffer(2048)
count = ctypes.c_ulong(ctypes.sizeof(modname))
if has_queryimage:
ctypes.windll.kernel32.QueryFullProcessImageNameA(hProcess, 0, ctypes.byref(modname), ctypes.byref(count))
else:
ctypes.windll.psapi.GetModuleFileNameExA(hProcess, 0, ctypes.byref(modname), ctypes.byref(count))
exe = modname.value
name = os.path.basename(exe)
process_list.append(Process(pid=pid, name=name, exe=exe))
ctypes.windll.kernel32.CloseHandle(hProcess)
elif sys.platform.startswith('linux'):
for filename in glob.glob('/proc/[0-9]*/cmdline'):
pid = int(filename.split('/')[2])
exe_link = '/proc/%d/exe' % pid
if os.path.exists(exe_link):
exe = os.readlink(exe_link)
name = os.path.basename(exe)
process_list.append(Process(pid=pid, name=name, exe=exe))
else:
try:
import psutil
process_list = psutil.get_process_list()
except StandardError as e:
logging.exception('psutil.get_process_list() failed: %r', e)
return process_list
def forward_socket(local, remote, timeout, bufsize):
"""forward socket"""
try:
tick = 1
timecount = timeout
while 1:
timecount -= tick
if timecount <= 0:
break
(ins, _, errors) = select.select([local, remote], [], [local, remote], tick)
if errors:
break
for sock in ins:
data = sock.recv(bufsize)
if not data:
break
if sock is remote:
local.sendall(data)
timecount = timeout
else:
remote.sendall(data)
timecount = timeout
except socket.timeout:
pass
except (socket.error, ssl.SSLError, OpenSSL.SSL.Error) as e:
if e.args[0] not in (errno.ECONNABORTED, errno.ECONNRESET, errno.ENOTCONN, errno.EPIPE):
raise
if e.args[0] in (errno.EBADF,):
return
finally:
for sock in (remote, local):
try:
sock.close()
except StandardError:
pass
class LocalProxyServer(SocketServer.ThreadingTCPServer):
"""Local Proxy Server"""
request_queue_size = 4096
allow_reuse_address = True
daemon_threads = True
def __init__(self, listener, RequestHandlerClass, bind_and_activate=True):
"""Constructor. May be extended, do not override."""
if hasattr(listener, 'getsockname'):
SocketServer.BaseServer.__init__(self, listener.getsockname(), RequestHandlerClass)
self.socket = listener
else:
SocketServer.ThreadingTCPServer.__init__(self, listener, RequestHandlerClass, bind_and_activate)
def close_request(self, request):
try:
request.close()
except StandardError:
pass
def finish_request(self, request, client_address):
try:
self.RequestHandlerClass(request, client_address, self)
except (socket.error, ssl.SSLError, OpenSSL.SSL.Error) as e:
if e[0] not in (errno.ECONNABORTED, errno.ECONNRESET, errno.EPIPE):
raise
def handle_error(self, *args):
"""make ThreadingTCPServer happy"""
exc_info = sys.exc_info()
error = exc_info and len(exc_info) and exc_info[1]
if isinstance(error, (socket.error, ssl.SSLError, OpenSSL.SSL.Error)) and len(error.args) > 1 and 'bad write retry' in error.args[1]:
exc_info = error = None
else:
del exc_info, error
SocketServer.ThreadingTCPServer.handle_error(self, *args)
class BaseFetchPlugin(object):
"""abstract fetch plugin"""
def __init__(self, *args, **kwargs):
pass
def handle(self, handler, **kwargs):
raise NotImplementedError
class MockFetchPlugin(BaseFetchPlugin):
"""mock fetch plugin"""
def handle(self, handler, status=400, headers={}, body=''):
"""mock response"""
logging.info('%s "MOCK %s %s %s" %d %d', handler.address_string(), handler.command, handler.path, handler.protocol_version, status, len(body))
headers = dict((k.title(), v) for k, v in headers.items())
if 'Transfer-Encoding' in headers:
del headers['Transfer-Encoding']
if 'Content-Length' not in headers:
headers['Content-Length'] = len(body)
if 'Connection' not in headers:
headers['Connection'] = 'close'
handler.send_response(status)
for key, value in headers.items():
handler.send_header(key, value)
handler.end_headers()
handler.wfile.write(body)
class StripPlugin(BaseFetchPlugin):
"""strip fetch plugin"""
def __init__(self, ssl_version='SSLv23', ciphers='ALL:!aNULL:!eNULL', cache_size=128, session_cache=True):
self.ssl_method = getattr(ssl, 'PROTOCOL_%s' % ssl_version)
self.ciphers = ciphers
def do_ssl_handshake(self, handler):
"do_ssl_handshake with ssl"
certfile = CertUtil.get_cert(handler.host)
ssl_sock = ssl.wrap_socket(handler.connection, keyfile=certfile, certfile=certfile, server_side=True, ssl_version=self.ssl_method, ciphers=self.ciphers)
handler.connection = ssl_sock
handler.rfile = handler.connection.makefile('rb', handler.bufsize)
handler.wfile = handler.connection.makefile('wb', 0)
handler.scheme = 'https'
def handle(self, handler, do_ssl_handshake=True):
"""strip connect"""
logging.info('%s "STRIP %s %s:%d %s" - -', handler.address_string(), handler.command, handler.host, handler.port, handler.protocol_version)
handler.send_response(200)
handler.end_headers()
if do_ssl_handshake:
try: