mirror of https://github.com/python/cpython
84 lines
3.3 KiB
ReStructuredText
84 lines
3.3 KiB
ReStructuredText
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:mod:`SimpleHTTPServer` --- Simple HTTP request handler
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=======================================================
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.. module:: SimpleHTTPServer
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:synopsis: This module provides a basic request handler for HTTP servers.
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.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
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The :mod:`SimpleHTTPServer` module defines a request-handler class,
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interface-compatible with :class:`BaseHTTPServer.BaseHTTPRequestHandler`, that
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serves files only from a base directory.
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The :mod:`SimpleHTTPServer` module defines the following class:
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.. class:: SimpleHTTPRequestHandler(request, client_address, server)
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This class is used to serve files from the current directory and below, directly
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mapping the directory structure to HTTP requests.
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A lot of the work, such as parsing the request, is done by the base class
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:class:`BaseHTTPServer.BaseHTTPRequestHandler`. This class implements the
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:func:`do_GET` and :func:`do_HEAD` functions.
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The :class:`SimpleHTTPRequestHandler` defines the following member variables:
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.. attribute:: SimpleHTTPRequestHandler.server_version
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This will be ``"SimpleHTTP/" + __version__``, where ``__version__`` is defined
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in the module.
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.. attribute:: SimpleHTTPRequestHandler.extensions_map
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A dictionary mapping suffixes into MIME types. The default is signified by an
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empty string, and is considered to be ``application/octet-stream``. The mapping
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is used case-insensitively, and so should contain only lower-cased keys.
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The :class:`SimpleHTTPRequestHandler` defines the following methods:
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.. method:: SimpleHTTPRequestHandler.do_HEAD()
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This method serves the ``'HEAD'`` request type: it sends the headers it would
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send for the equivalent ``GET`` request. See the :meth:`do_GET` method for a
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more complete explanation of the possible headers.
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.. method:: SimpleHTTPRequestHandler.do_GET()
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The request is mapped to a local file by interpreting the request as a path
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relative to the current working directory.
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If the request was mapped to a directory, the directory is checked for a file
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named ``index.html`` or ``index.htm`` (in that order). If found, the file's
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contents are returned; otherwise a directory listing is generated by calling the
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:meth:`list_directory` method. This method uses :func:`os.listdir` to scan the
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directory, and returns a ``404`` error response if the :func:`listdir` fails.
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If the request was mapped to a file, it is opened and the contents are returned.
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Any :exc:`IOError` exception in opening the requested file is mapped to a
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``404``, ``'File not found'`` error. Otherwise, the content type is guessed by
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calling the :meth:`guess_type` method, which in turn uses the *extensions_map*
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variable.
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A ``'Content-type:'`` header with the guessed content type is output, followed
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by a ``'Content-Length:'`` header with the file's size and a
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``'Last-Modified:'`` header with the file's modification time.
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Then follows a blank line signifying the end of the headers, and then the
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contents of the file are output. If the file's MIME type starts with ``text/``
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the file is opened in text mode; otherwise binary mode is used.
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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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