72 lines
2.6 KiB
TeX
72 lines
2.6 KiB
TeX
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\section{\module{SimpleHTTPServer} ---
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A Do-Something Request Handler}
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\declaremodule{standard}{SimpleHTTPServer}
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\sectionauthor{Moshe Zadka}{mzadka@geocities.com}
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\modulesynopsis{This module provides a request handler for HTTP servers.}
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The \module{SimpleHTTPServer} module defines a request-handler class,
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interface compatible with \class{BaseHTTPServer.BaseHTTPRequestHandler}
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which serves files only from a base directory.
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The \module{SimpleHTTPServer} module defines the following class:
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\begin{classdesc}{SimpleHTTPRequestHandler}{request, client_address, server}
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This class is used, to serve files from current directory and below,
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directly mapping the directory structure to HTTP requests.
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A lot of the work is done by the base class
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\class{BaseHTTPServer.BaseHTTPRequestHandler}, such as parsing the
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request. This class implements the \function{do_GET()} and
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\function{do_HEAD()} functions.
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\end{classdesc}
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The \class{SimpleHTTPRequestHandler} defines the following member
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variables:
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\begin{memberdesc}{server_version}
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This will be \code{"SimpleHTTP/" + __version__}, where \code{__version__}
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is defined in the module.
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\end{memberdesc}
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\begin{memberdesc}{extensions_map}
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A dictionary mapping suffixes into MIME types. Default is signified
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by an empty string, and is considered to be \code{text/plain}.
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The mapping is used case-insensitively, and so should contain only
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lower-cased keys.
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\end{memberdesc}
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The \class{SimpleHTTPRequestHandler} defines the following methods:
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\begin{methoddesc}{do_HEAD}{}
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This method serves the \code{'HEAD'} request type: it sends the
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headers it would send for the equivalent \code{GET} request. See the
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\method{do_GET()} method for more complete explanation of the possible
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headers.
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\end{methoddesc}
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\begin{methoddesc}{do_GET}{}
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The request is mapped to a local file by interpreting the request as
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a path relative to the current working directory.
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If the request was mapped to a directory, a \code{403} respond is output,
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followed by the explanation \code{'Directory listing not supported'}.
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Any \exception{IOError} exception in opening the requested file, is mapped
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to a \code{404}, \code{'File not found'} error. Otherwise, the content
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type is guessed using the \var{extensions_map} variable.
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A \code{'Content-type:'} with the guessed content type is output, and
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then a blank line, signifying end of headers, and then the contents of
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the file. The file is always opened in binary mode.
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For example usage, see the implementation of the \function{test()}
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function.
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\end{methoddesc}
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\begin{seealso}
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\seemodule{BaseHTTPServer}{Base class implementation for Web server
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and request handler.}
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\end{seealso}
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