New sections from Moshe Zadka <moshez@math.huji.ac.il>.
These document CGIHTTPServer, SimpleHTTPServer, and linecache.
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+\section{\module{CGIHTTPServer} ---
+ A Do-Something Request Handler}
+
+
+\declaremodule{standard}{CGIHTTPServer}
+\sectionauthor{Moshe Zadka}{mzadka@geocities.com}
+\modulesynopsis{This module provides a request handler for HTTP servers
+ which can run CGI scripts.}
+
+
+The \module{CGIHTTPServer} module defines a request-handler class,
+interface compatible with
+\class{BaseHTTPServer.BaseHTTPRequestHandler} and inherits behaviour
+from \class{SimpleHTTPServer.SimpleHTTPRequestHandler} but can also
+run CGI scripts.
+
+The \module{CGIHTTPServer} module defines the following class:
+
+\begin{classdesc}{CGIHTTPRequestHandler}{request, client_address, server}
+This class is used to serve either files or output of CGI scripts from
+the current directory and below. Note that mapping HTTP hierarchic
+structure to local directory structure is exactly as in
+\class{SimpleHTTPServer.SimpleHTTPRequestHandler}.
+
+The class will however, run the CGI script, instead of serving it as a
+file, if it guesses it to be a CGI script. Only directory-based CGI
+are used --- the other common server configuration is to treat special
+extensions as denoting CGI scripts.
+
+The \function{do_GET()} and \function{do_HEAD()} functions are
+modified to run CGI scripts and serve the output, instead of serving
+files, if the request leads to somewhere below the
+\code{cgi_directories} path.
+\end{classdesc}
+
+The \class{CGIHTTPRequestHandler} defines the following data member:
+
+\begin{memberdesc}{cgi_directories}
+This defaults to \code{['/cgi-bin', '/htbin']} and describes
+directories to treat as containing CGI scripts.
+\end{memberdesc}
+
+The \class{CGIHTTPRequestHandler} defines the following methods:
+
+\begin{methoddesc}{do_POST}{}
+This method serves the \code{'POST'} request type, only allowed for
+CGI scripts. Error 501, "Can only POST to CGI scripts", is output
+when trying to POST to a non-CGI url.
+\end{methoddesc}
+
+Note that CGI scripts will be run with UID of user nobody, for security
+reasons. Problems with the CGI script will be translated to error 403.
+
+For example usage, see the implementation of the \function{test()}
+function.
+
+
+\begin{seealso}
+ \seemodule{BaseHTTPServer}{Base class implementation for Web server
+ and request handler.}
+\end{seealso}