Mercurial > hg
view tests/tinyproxy.py @ 2569:52ce0d6bc375
HTTPS: fix python2.3, persistent connections, don't explode if SSL is not available
The urllib2 differences between python 2.3 and 2.4 are hidden by
using keepalive.py, which also gives us support for persistent
connections.
Support for HTTPS is enabled only if there's a HTTPSHandler class in
urllib2.
It's not possible to have separate classes as handlers for HTTP and
HTTPS: to support persistent HTTPS connections, we need a class that
inherits from both keepalive.HTTPHandler and urllib2.HTTPSHandler. If
we try to pass (an instance of) this class and (an instance of) the
httphandler class to urllib2.build_opener, this function ends up getting
confused, since both classes are subclasses of the HTTPHandler default
handler, and raises an exception.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Thu, 06 Jul 2006 03:14:55 -0300 |
parents | 3f24bc5dee81 |
children | 08a0f04b56bd |
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#!/usr/bin/env 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 """ __version__ = "0.2.1" import BaseHTTPServer, select, socket, SocketServer, urlparse 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 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 print "\t" "connect to %s:%d" % host_port 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: print "\t" "bye" soc.close() self.connection.close() def do_GET(self): (scm, netloc, path, params, query, fragment) = urlparse.urlparse( self.path, 'http') if scm != 'http' 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 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) finally: print "\t" "bye" soc.close() self.connection.close() def _read_write(self, soc, max_idling=20): iw = [self.connection, soc] ow = [] count = 0 while 1: count += 1 (ins, _, exs) = select.select(iw, ow, iw, 3) 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: out.send(data) count = 0 else: print "\t" "idle", count if count == max_idling: break do_HEAD = do_GET do_POST = do_GET do_PUT = do_GET do_DELETE=do_GET class ThreadingHTTPServer (SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer): pass if __name__ == '__main__': from sys import argv if argv[1:] and argv[1] in ('-h', '--help'): print argv[0], "[port [allowed_client_name ...]]" else: if argv[2:]: allowed = [] for name in argv[2:]: client = socket.gethostbyname(name) allowed.append(client) print "Accept: %s (%s)" % (client, name) ProxyHandler.allowed_clients = allowed del argv[2:] else: print "Any clients will be served..." BaseHTTPServer.test(ProxyHandler, ThreadingHTTPServer)