proxyapp.py

   1 """ This is a proxy server which converts incoming requests into
   2     HTTP/1.1 with Keep-Alive set.  It maintains a continuous
   3     HTTP connection to the server it is proxying for, so that
   4     as long as that remote server keeps a process or thread
   5     running to serve the continuous stream of requests, that
   6     process or thread can keep state information in memory.
   7
   8     For example, a connection object to a database can be kept
   9     around; large complex data structures that are too big to
  10     serialise or pass across inter-process boundaries and so on.
  11
  12     The target proxy HTTP Server *must* support HTTP keep-alives
  13     (header "Connection: keep-alive").
  14
  15     The client (browser, usually) *does not* have to support
  16     HTTP keep-alives, or maintain a continuous connection: that
  17     action is performed by the proxy.
  18
  19     However, the only requirements is that the client (browser)
  20     *must* support and accept cookies, as the cookie named "session"
  21     is used by multitaskhttpd to identify and route the incoming
  22     connections through to the correct persistent proxy connection.
  23 """
  24
  25 import multitask
  26 import httpd
  27 from ProxyServer import ProxyServerRequestHandler
  28 from httpd import HTTPServer, App, BaseApp
  29
  30 class ProxyApp(ProxyServerRequestHandler, BaseApp):
  31
  32     def __init__(self):
  33         BaseApp.__init__(self)
  34         ProxyServerRequestHandler.__init__(self)
  35         self.proxies = {}
  36
  37 if __name__ == '__main__':
  38     #httpd.set_debug(True)
  39     agent = HTTPServer()
  40     agent.apps = dict({'*': ProxyApp})
  41     agent.start()
  42     multitask.run()
  43