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66 lines
2.4 KiB
TeX
66 lines
2.4 KiB
TeX
\section{\module{CGIHTTPServer} ---
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A Do-Something Request Handler}
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\declaremodule{standard}{CGIHTTPServer}
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\platform{Unix}
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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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which can run CGI scripts.}
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The \module{CGIHTTPServer} module defines a request-handler class,
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interface compatible with
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\class{BaseHTTPServer.BaseHTTPRequestHandler} and inherits behaviour
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from \class{SimpleHTTPServer.SimpleHTTPRequestHandler} but can also
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run CGI scripts.
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\strong{Note:} This module is \UNIX{} dependent since it creates the
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CGI process using \function{os.fork()} and \function{os.exec()}.
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The \module{CGIHTTPServer} module defines the following class:
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\begin{classdesc}{CGIHTTPRequestHandler}{request, client_address, server}
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This class is used to serve either files or output of CGI scripts from
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the current directory and below. Note that mapping HTTP hierarchic
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structure to 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
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file, if it guesses it to be a CGI script. Only directory-based CGI
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are used --- the other common server configuration is to treat special
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extensions as denoting CGI scripts.
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The \function{do_GET()} and \function{do_HEAD()} functions are
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modified to run CGI scripts and serve the output, instead of serving
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files, if the request leads to somewhere below the
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\code{cgi_directories} path.
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\end{classdesc}
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The \class{CGIHTTPRequestHandler} defines the following data member:
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\begin{memberdesc}{cgi_directories}
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This defaults to \code{['/cgi-bin', '/htbin']} and describes
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directories to treat as containing CGI scripts.
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\end{memberdesc}
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The \class{CGIHTTPRequestHandler} defines the following methods:
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\begin{methoddesc}{do_POST}{}
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This method serves the \code{'POST'} request type, only allowed for
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CGI scripts. Error 501, "Can only POST to CGI scripts", is output
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when trying to POST to a non-CGI url.
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\end{methoddesc}
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Note that CGI scripts will be run with UID of user nobody, for security
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reasons. Problems with the CGI script will be translated to error 403.
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For example usage, see the implementation of the \function{test()}
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function.
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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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