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      1 :mod:`CGIHTTPServer` --- CGI-capable HTTP request handler
      2 =========================================================
      3 
      4 .. module:: CGIHTTPServer
      5    :synopsis: This module provides a request handler for HTTP servers which can run CGI
      6               scripts.
      7 .. sectionauthor:: Moshe Zadka <moshez (a] zadka.site.co.il>
      8 
      9 .. note::
     10    The :mod:`CGIHTTPServer` module has been merged into :mod:`http.server` in
     11    Python 3.  The :term:`2to3` tool will automatically adapt imports when
     12    converting your sources to Python 3.
     13 
     14 
     15 The :mod:`CGIHTTPServer` module defines a request-handler class, interface
     16 compatible with :class:`BaseHTTPServer.BaseHTTPRequestHandler` and inherits
     17 behavior from :class:`SimpleHTTPServer.SimpleHTTPRequestHandler` but can also
     18 run CGI scripts.
     19 
     20 .. note::
     21 
     22    This module can run CGI scripts on Unix and Windows systems.
     23 
     24 .. note::
     25 
     26    CGI scripts run by the :class:`CGIHTTPRequestHandler` class cannot execute
     27    redirects (HTTP code 302), because code 200 (script output follows) is sent
     28    prior to execution of the CGI script.  This pre-empts the status code.
     29 
     30 The :mod:`CGIHTTPServer` module defines the following class:
     31 
     32 
     33 .. class:: CGIHTTPRequestHandler(request, client_address, server)
     34 
     35    This class is used to serve either files or output of CGI scripts from  the
     36    current directory and below. Note that mapping HTTP hierarchic structure to
     37    local directory structure is exactly as in
     38    :class:`SimpleHTTPServer.SimpleHTTPRequestHandler`.
     39 
     40    The class will however, run the CGI script, instead of serving it as a file, if
     41    it guesses it to be a CGI script. Only directory-based CGI are used --- the
     42    other common server configuration is to treat special extensions as denoting CGI
     43    scripts.
     44 
     45    The :func:`do_GET` and :func:`do_HEAD` functions are modified to run CGI scripts
     46    and serve the output, instead of serving files, if the request leads to
     47    somewhere below the ``cgi_directories`` path.
     48 
     49    The :class:`CGIHTTPRequestHandler` defines the following data member:
     50 
     51 
     52    .. attribute:: cgi_directories
     53 
     54       This defaults to ``['/cgi-bin', '/htbin']`` and describes directories to
     55       treat as containing CGI scripts.
     56 
     57    The :class:`CGIHTTPRequestHandler` defines the following methods:
     58 
     59 
     60    .. method:: do_POST()
     61 
     62       This method serves the ``'POST'`` request type, only allowed for CGI
     63       scripts.  Error 501, "Can only POST to CGI scripts", is output when trying
     64       to POST to a non-CGI url.
     65 
     66 Note that CGI scripts will be run with UID of user nobody, for security reasons.
     67 Problems with the CGI script will be translated to error 403.
     68 
     69 For example usage, see the implementation of the :func:`test` function.
     70 
     71 
     72 .. seealso::
     73 
     74    Module :mod:`BaseHTTPServer`
     75       Base class implementation for Web server and request handler.
     76 
     77