<?xml version="1.0"?>
<!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
<!-- $LastChangedRevision: 421100 $ -->

<!--
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-->

<modulesynopsis metafile="mod_cern_meta.xml.meta">

<name>mod_cern_meta</name>
<description>CERN httpd metafile semantics</description>
<status>Extension</status>
<sourcefile>mod_cern_meta.c</sourcefile>
<identifier>cern_meta_module</identifier>

<summary>
    <p>Emulate the CERN HTTPD Meta file semantics. Meta files are HTTP
    headers that can be output in addition to the normal range of
    headers for each file accessed. They appear rather like the
    Apache .asis files, and are able to provide a crude way of
    influencing the Expires: header, as well as providing other
    curiosities. There are many ways to manage meta information,
    this one was chosen because there is already a large number of
    CERN users who can exploit this module.</p>

    <p>More information on the <a
    href="http://www.w3.org/pub/WWW/Daemon/User/Config/General.html#MetaDir"
    >CERN metafile semantics</a> is available.</p>
</summary>

<seealso><module>mod_headers</module></seealso>
<seealso><module>mod_asis</module></seealso>

<directivesynopsis>
<name>MetaFiles</name>
<description>Activates CERN meta-file processing</description>
<syntax>MetaFiles on|off</syntax>
<default>MetaFiles off</default>
<contextlist><context>server config</context>
<context>virtual host</context>
<context>directory</context>
<context>.htaccess</context></contextlist>
<override>Indexes</override>

<usage>
    <p>Turns on/off Meta file processing on a per-directory basis.</p>
</usage>
</directivesynopsis>

<directivesynopsis>
<name>MetaDir</name>
<description>Name of the directory to find CERN-style meta information
files</description>
<syntax>MetaDir <var>directory</var></syntax>
<default>MetaDir .web</default>
<contextlist><context>server config</context>
<context>virtual host</context>
<context>directory</context>
<context>.htaccess</context></contextlist>
<override>Indexes</override>

<usage>
    <p>Specifies the name of the directory in which Apache can find
    meta information files. The directory is usually a 'hidden'
    subdirectory of the directory that contains the file being
    accessed. Set to "<code>.</code>" to look in the same directory
    as the file:</p>

    <example>MetaDir .</example>

    <p>Or, to set it to a subdirectory of the directory containing the
    files:</p>

    <example>MetaDir .meta</example>
</usage>
</directivesynopsis>

<directivesynopsis>
<name>MetaSuffix</name>
<description>File name suffix for the file containg CERN-style
meta information</description>
<syntax>MetaSuffix <var>suffix</var></syntax>
<default>MetaSuffix .meta</default>
<contextlist><context>server config</context>
<context>virtual host</context>
<context>directory</context>
<context>.htaccess</context></contextlist>
<override>Indexes</override>

<usage>
    <p>Specifies the file name suffix for the file containing the
    meta information. For example, the default values for the two
    directives will cause a request to
    <code>DOCUMENT_ROOT/somedir/index.html</code> to look in
    <code>DOCUMENT_ROOT/somedir/.web/index.html.meta</code> and
    will use its contents to generate additional MIME header
    information.</p>

    <example><title>Example:</title>
      MetaSuffix .meta
    </example>
</usage>
</directivesynopsis>

</modulesynopsis>
