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77 lines
2.7 KiB
77 lines
2.7 KiB
:mod:`CGIHTTPServer` --- CGI-capable HTTP request handler
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=========================================================
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.. module:: CGIHTTPServer
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:synopsis: This module provides a request handler for HTTP servers which can run CGI
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scripts.
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.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
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.. note::
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The :mod:`CGIHTTPServer` module has been merged into :mod:`http.server` in
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Python 3. The :term:`2to3` tool will automatically adapt imports when
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converting your sources to Python 3.
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The :mod:`CGIHTTPServer` module defines a request-handler class, interface
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compatible with :class:`BaseHTTPServer.BaseHTTPRequestHandler` and inherits
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behavior from :class:`SimpleHTTPServer.SimpleHTTPRequestHandler` but can also
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run CGI scripts.
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.. note::
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This module can run CGI scripts on Unix and Windows systems.
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.. note::
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CGI scripts run by the :class:`CGIHTTPRequestHandler` class cannot execute
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redirects (HTTP code 302), because code 200 (script output follows) is sent
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prior to execution of the CGI script. This pre-empts the status code.
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The :mod:`CGIHTTPServer` module defines the following class:
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.. class:: CGIHTTPRequestHandler(request, client_address, server)
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This class is used to serve either files or output of CGI scripts from the
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current directory and below. Note that mapping HTTP hierarchic structure to
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local directory structure is exactly as in
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:class:`SimpleHTTPServer.SimpleHTTPRequestHandler`.
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The class will however, run the CGI script, instead of serving it as a file, if
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it guesses it to be a CGI script. Only directory-based CGI are used --- the
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other common server configuration is to treat special extensions as denoting CGI
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scripts.
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The :func:`do_GET` and :func:`do_HEAD` functions are modified to run CGI scripts
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and serve the output, instead of serving files, if the request leads to
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somewhere below the ``cgi_directories`` path.
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The :class:`CGIHTTPRequestHandler` defines the following data member:
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.. attribute:: cgi_directories
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This defaults to ``['/cgi-bin', '/htbin']`` and describes directories to
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treat as containing CGI scripts.
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The :class:`CGIHTTPRequestHandler` defines the following methods:
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.. method:: do_POST()
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This method serves the ``'POST'`` request type, only allowed for CGI
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scripts. Error 501, "Can only POST to CGI scripts", is output when trying
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to POST to a non-CGI url.
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Note that CGI scripts will be run with UID of user nobody, for security reasons.
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Problems with the CGI script will be translated to error 403.
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For example usage, see the implementation of the :func:`test` function.
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.. seealso::
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Module :mod:`BaseHTTPServer`
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Base class implementation for Web server and request handler.
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