简单的proxy之TinyHTTPProxy.py

简单的proxy之TinyHTTPProxy.py

如果是在外企工作的话，可以访问美国的机器，这样就可以在美国的机器上为自己装个proxy，然后本地就可以很容易的使用proxy来上网了。

TinyHTTPProxy.py :

主页：http://www.voidtrance.net/2010/01/simple-python-http-proxy/ 
下载：http://www.voidtrance.net/downloads/tiny-proxy-0.3.1.tar.gz 

使用方法：

1）很好用，下载然后在后台运行。只依赖于基本的python modules，运行的时候不需要root权限。

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proxy [-p port] [-l logfile] [-dh] [allowed_client_name ...]]      -p   - Port to bind to    -l   - Path to logfile. If not specified, STDOUT is used    -d   - Run in the background

　　

2） Chrome中的switchsharper插件的配置：

TinyHTTPProxy.py的源代码:

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#!/usr/bin/python    __doc__ = """Tiny HTTP Proxy.    This module implements GET, HEAD, POST, PUT and DELETE methods on BaseHTTPServer, and behaves as an HTTP proxy.  The CONNECT method is also implemented experimentally, but has not been tested yet.    Any help will be greatly appreciated.       SUZUKI Hisao    2009/11/23 - Modified by Mitko Haralanov              * Added very simple FTP file retrieval              * Added custom logging methods              * Added code to make this a standalone application """    __version__ = "0.3.1"    import BaseHTTPServer, select, socket, SocketServer, urlparse import logging import logging.handlers import getopt import sys import os import signal import threading from types import FrameType, CodeType from time import sleep import ftplib    DEFAULT_LOG_FILENAME = "proxy.log"    class ProxyHandler (BaseHTTPServer.BaseHTTPRequestHandler):     __base = BaseHTTPServer.BaseHTTPRequestHandler     __base_handle = __base.handle        server_version = "TinyHTTPProxy/" + __version__     rbufsize = 0                        # self.rfile Be unbuffered        def handle(self):         (ip, port) =  self.client_address         self.server.logger.log (logging.INFO, "Request from '%s'", ip)         if hasattr(self, 'allowed_clients') and ip not in self.allowed_clients:             self.raw_requestline = self.rfile.readline()             if self.parse_request(): self.send_error(403)         else:             self.__base_handle()        def _connect_to(self, netloc, soc):         i = netloc.find(':')         if i >= 0:             host_port = netloc[:i], int(netloc[i+1:])         else:             host_port = netloc, 80         self.server.logger.log (logging.INFO, "connect to %s:%d", host_port[0], host_port[1])         try: soc.connect(host_port)         except socket.error, arg:             try: msg = arg[1]             except: msg = arg             self.send_error(404, msg)             return 0         return 1        def do_CONNECT(self):         soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)         try:             if self._connect_to(self.path, soc):                 self.log_request(200)                 self.wfile.write(self.protocol_version +                                  " 200 Connection established\r\n")                 self.wfile.write("Proxy-agent: %s\r\n" % self.version_string())                 self.wfile.write("\r\n")                 self._read_write(soc, 300)         finally:             soc.close()             self.connection.close()        def do_GET(self):         (scm, netloc, path, params, query, fragment) = urlparse.urlparse(             self.path, 'http')         if scm not in ('http', 'ftp') or fragment or not netloc:             self.send_error(400, "bad url %s" % self.path)             return         soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)         try:             if scm == 'http':                 if self._connect_to(netloc, soc):                     self.log_request()                     soc.send("%s %s %s\r\n" % (self.command,                                                urlparse.urlunparse(('', '', path,                                                                     params, query,                                                                     '')),                                                self.request_version))                     self.headers['Connection'] = 'close'                     del self.headers['Proxy-Connection']                     for key_val in self.headers.items():                         soc.send("%s: %s\r\n" % key_val)                     soc.send("\r\n")                     self._read_write(soc)             elif scm == 'ftp':                 # fish out user and password information                 i = netloc.find ('@')                 if i >= 0:                     login_info, netloc = netloc[:i], netloc[i+1:]                     try: user, passwd = login_info.split (':', 1)                     except ValueError: user, passwd = "anonymous", None                 else: user, passwd ="anonymous", None                 self.log_request ()                 try:                     ftp = ftplib.FTP (netloc)                     ftp.login (user, passwd)                     if self.command == "GET":                         ftp.retrbinary ("RETR %s"%path, self.connection.send)                     ftp.quit ()                 except Exception, e:                     self.server.logger.log (logging.WARNING, "FTP Exception: %s",                                             e)         finally:             soc.close()             self.connection.close()        def _read_write(self, soc, max_idling=20, local=False):         iw = [self.connection, soc]         local_data = ""         ow = []         count = 0         while 1:             count += 1             (ins, _, exs) = select.select(iw, ow, iw, 1)             if exs: break             if ins:                 for i in ins:                     if i is soc: out = self.connection                     else: out = soc                     data = i.recv(8192)                     if data:                         if local: local_data += data                         else: out.send(data)                         count = 0             if count == max_idling: break         if local: return local_data         return None        do_HEAD = do_GET     do_POST = do_GET     do_PUT  = do_GET     do_DELETE=do_GET        def log_message (self, format, *args):         self.server.logger.log (logging.INFO, "%s %s", self.address_string (),                                 format % args)        def log_error (self, format, *args):         self.server.logger.log (logging.ERROR, "%s %s", self.address_string (),                                 format % args)    class ThreadingHTTPServer (SocketServer.ThreadingMixIn,                            BaseHTTPServer.HTTPServer):     def __init__ (self, server_address, RequestHandlerClass, logger=None):         BaseHTTPServer.HTTPServer.__init__ (self, server_address,                                             RequestHandlerClass)         self.logger = logger    def logSetup (filename, log_size, daemon):     logger = logging.getLogger ("TinyHTTPProxy")     logger.setLevel (logging.INFO)     if not filename:         if not daemon:             # display to the screen             handler = logging.StreamHandler ()         else:             handler = logging.handlers.RotatingFileHandler (DEFAULT_LOG_FILENAME,                                                             maxBytes=(log_size*(1<<20)),                                                             backupCount=5)     else:         handler = logging.handlers.RotatingFileHandler (filename,                                                         maxBytes=(log_size*(1<<20)),                                                         backupCount=5)     fmt = logging.Formatter ("[%(asctime)-12s.%(msecs)03d] "                              "%(levelname)-8s {%(name)s %(threadName)s}"                              " %(message)s",                              "%Y-%m-%d %H:%M:%S")     handler.setFormatter (fmt)        logger.addHandler (handler)     return logger    def usage (msg=None):     if msg: print msg     print sys.argv[0], "[-p port] [-l logfile] [-dh] [allowed_client_name ...]]"     print     print "   -p       - Port to bind to"     print "   -l       - Path to logfile. If not specified, STDOUT is used"     print "   -d       - Run in the background"     print    def handler (signo, frame):     while frame and isinstance (frame, FrameType):         if frame.f_code and isinstance (frame.f_code, CodeType):             if "run_event" in frame.f_code.co_varnames:                 frame.f_locals["run_event"].set ()                 return         frame = frame.f_back    def daemonize (logger):     class DevNull (object):         def __init__ (self): self.fd = os.open ("/dev/null", os.O_WRONLY)         def write (self, *args, **kwargs): return 0         def read (self, *args, **kwargs): return 0         def fileno (self): return self.fd         def close (self): os.close (self.fd)     class ErrorLog:         def __init__ (self, obj): self.obj = obj         def write (self, string): self.obj.log (logging.ERROR, string)         def read (self, *args, **kwargs): return 0         def close (self): pass        if os.fork () != 0:         ## allow the child pid to instanciate the server         ## class         sleep (1)         sys.exit (0)     os.setsid ()     fd = os.open ('/dev/null', os.O_RDONLY)     if fd != 0:         os.dup2 (fd, 0)         os.close (fd)     null = DevNull ()     log = ErrorLog (logger)     sys.stdout = null     sys.stderr = log     sys.stdin = null     fd = os.open ('/dev/null', os.O_WRONLY)     #if fd != 1: os.dup2 (fd, 1)     os.dup2 (sys.stdout.fileno (), 1)     if fd != 2: os.dup2 (fd, 2)     if fd not in (1, 2): os.close (fd)    def main ():     logfile = None     daemon  = False     max_log_size = 20     port = 8000     allowed = []     run_event = threading.Event ()     local_hostname = socket.gethostname ()        try: opts, args = getopt.getopt (sys.argv[1:], "l:dhp:", [])     except getopt.GetoptError, e:         usage (str (e))         return 1        for opt, value in opts:         if opt == "-p": port = int (value)         if opt == "-l": logfile = value         if opt == "-d": daemon = not daemon         if opt == "-h":             usage ()             return 0        # setup the log file     logger = logSetup (logfile, max_log_size, daemon)        if daemon:         daemonize (logger)     signal.signal (signal.SIGINT, handler)        if args:         allowed = []         for name in args:             client = socket.gethostbyname(name)             allowed.append(client)             logger.log (logging.INFO, "Accept: %s (%s)" % (client, name))         ProxyHandler.allowed_clients = allowed     else:         logger.log (logging.INFO, "Any clients will be served...")        server_address = (socket.gethostbyname (local_hostname), port)     ProxyHandler.protocol = "HTTP/1.0"     httpd = ThreadingHTTPServer (server_address, ProxyHandler, logger)     sa = httpd.socket.getsockname ()     print "Servering HTTP on", sa[0], "port", sa[1]     req_count = 0     while not run_event.isSet ():         try:             httpd.handle_request ()             req_count += 1             if req_count == 1000:                 logger.log (logging.INFO, "Number of active threads: %s",                             threading.activeCount ())                 req_count = 0         except select.error, e:             if e[0] == 4 and run_event.isSet (): pass             else:                 logger.log (logging.CRITICAL, "Errno: %d - %s", e[0], e[1])     logger.log (logging.INFO, "Server shutdown")     return 0    if __name__ == '__main__':     sys.exit (main ())

　　

其他的python proxy：
https://github.com/senko/tornado-proxy

 

完！