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| 55 | <H1><A NAME="SECTION00131900000000000000000"> |
| 56 | 11.19 <tt class="module">CGIHTTPServer</tt> -- |
| 57 | CGI-capable HTTP request handler</A> |
| 58 | </H1> |
| 59 | |
| 60 | <P> |
| 61 | <A NAME="module-CGIHTTPServer"></A> |
| 62 | |
| 63 | <P> |
| 64 | The <tt class="module">CGIHTTPServer</tt> module defines a request-handler class, |
| 65 | interface compatible with |
| 66 | <tt class="class">BaseHTTPServer.BaseHTTPRequestHandler</tt> and inherits behavior |
| 67 | from <tt class="class">SimpleHTTPServer.SimpleHTTPRequestHandler</tt> but can also |
| 68 | run CGI scripts. |
| 69 | |
| 70 | <P> |
| 71 | <span class="note"><b class="label">Note:</b> |
| 72 | This module can run CGI scripts on <span class="Unix">Unix</span> and Windows systems; |
| 73 | on Mac OS it will only be able to run Python scripts within the same |
| 74 | process as itself.</span> |
| 75 | |
| 76 | <P> |
| 77 | The <tt class="module">CGIHTTPServer</tt> module defines the following class: |
| 78 | |
| 79 | <P> |
| 80 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> |
| 81 | <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-3611' xml:id='l2h-3611' class="class">CGIHTTPRequestHandler</tt></b>(</nobr></td> |
| 82 | <td><var>request, client_address, server</var>)</td></tr></table></dt> |
| 83 | <dd> |
| 84 | This class is used to serve either files or output of CGI scripts from |
| 85 | the current directory and below. Note that mapping HTTP hierarchic |
| 86 | structure to local directory structure is exactly as in |
| 87 | <tt class="class">SimpleHTTPServer.SimpleHTTPRequestHandler</tt>. |
| 88 | |
| 89 | <P> |
| 90 | The class will however, run the CGI script, instead of serving it as a |
| 91 | file, if it guesses it to be a CGI script. Only directory-based CGI |
| 92 | are used -- the other common server configuration is to treat special |
| 93 | extensions as denoting CGI scripts. |
| 94 | |
| 95 | <P> |
| 96 | The <tt class="function">do_GET()</tt> and <tt class="function">do_HEAD()</tt> functions are |
| 97 | modified to run CGI scripts and serve the output, instead of serving |
| 98 | files, if the request leads to somewhere below the |
| 99 | <code>cgi_directories</code> path. |
| 100 | </dl> |
| 101 | |
| 102 | <P> |
| 103 | The <tt class="class">CGIHTTPRequestHandler</tt> defines the following data member: |
| 104 | |
| 105 | <P> |
| 106 | <dl><dt><b><tt id='l2h-3612' xml:id='l2h-3612' class="member">cgi_directories</tt></b></dt> |
| 107 | <dd> |
| 108 | This defaults to <code>['/cgi-bin', '/htbin']</code> and describes |
| 109 | directories to treat as containing CGI scripts. |
| 110 | </dl> |
| 111 | |
| 112 | <P> |
| 113 | The <tt class="class">CGIHTTPRequestHandler</tt> defines the following methods: |
| 114 | |
| 115 | <P> |
| 116 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> |
| 117 | <td><nobr><b><tt id='l2h-3613' xml:id='l2h-3613' class="method">do_POST</tt></b>(</nobr></td> |
| 118 | <td><var></var>)</td></tr></table></dt> |
| 119 | <dd> |
| 120 | This method serves the <code>'POST'</code> request type, only allowed for |
| 121 | CGI scripts. Error 501, "Can only POST to CGI scripts", is output |
| 122 | when trying to POST to a non-CGI url. |
| 123 | </dl> |
| 124 | |
| 125 | <P> |
| 126 | Note that CGI scripts will be run with UID of user nobody, for security |
| 127 | reasons. Problems with the CGI script will be translated to error 403. |
| 128 | |
| 129 | <P> |
| 130 | For example usage, see the implementation of the <tt class="function">test()</tt> |
| 131 | function. |
| 132 | |
| 133 | <P> |
| 134 | <div class="seealso"> |
| 135 | <p class="heading">See Also:</p> |
| 136 | |
| 137 | <dl compact="compact" class="seemodule"> |
| 138 | <dt>Module <b><tt class="module"><a href="module-BaseHTTPServer.html">BaseHTTPServer</a></tt>:</b> |
| 139 | <dd>Base class implementation for Web server |
| 140 | and request handler. |
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