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<title>Filtres - Serveur Apache HTTP</title>
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<p class="apache">Serveur Apache HTTP Version 2.0</p>
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<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">Serveur HTTP</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="./">Version 2.0</a></div><div id="page-content"><div class="retired"><h4>Please note</h4>
<p>This document refers to the <strong>2.0</strong> version of Apache httpd, which <strong>is no longer maintained</strong>. Upgrade, and refer to the current version of httpd instead, documented at:</p>
<ul><li><a href="http://httpd.apache.org/docs/current/">Current release version of Apache HTTP Server documentation</a></li></ul><p>You may follow <a href="http://httpd.apache.org/docs/current/filter.html">this link</a> to go to the current version of this document.</p></div><div id="preamble"><h1>Filtres</h1>
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<p><span>Langues Disponibles: </span><a href="./en/filter.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
<a href="./es/filter.html" hreflang="es" rel="alternate" title="Espa&#241;ol">&nbsp;es&nbsp;</a> |
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<p>Ce document explique le fonctionnement des filtres avec Apache.</p>
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<h2><a name="filters" id="filters">Filtres</a></h2>
<table class="related"><tr><th>Modules Apparent&#233;s</th><th>Directives Apparent&#233;es</th></tr><tr><td><ul><li><code class="module"><a href="./mod/mod_deflate.html">mod_deflate</a></code></li><li><code class="module"><a href="./mod/mod_ext_filter.html">mod_ext_filter</a></code></li><li><code class="module"><a href="./mod/mod_include.html">mod_include</a></code></li></ul></td><td><ul><li><code class="directive"><a href="./mod/mod_mime.html#addinputfilter">AddInputFilter</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#addoutputfilter">AddOutputFilter</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#removeinputfilter">RemoveInputFilter</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#removeoutputfilter">RemoveOutputFilter</a></code></li><li><code class="directive"><a href="./mod/mod_ext_filter.html#extfilterdefine">ExtFilterDefine</a></code></li><li><code class="directive"><a href="./mod/mod_ext_filter.html#extfilteroptions">ExtFilterOptions</a></code></li><li><code class="directive"><a href="./mod/core.html#setinputfilter">SetInputFilter</a></code></li><li><code class="directive"><a href="./mod/core.html#setoutputfilter">SetOutputFilter</a></code></li></ul></td></tr></table>
<p>On appelle <em>filtre</em> un processus qui s'applique aux
donn&#233;es re&#231;ues ou envoy&#233;es par le serveur. Les <em>filtres en
entr&#233;e (input filters)</em> servent &#224; filtrer les donn&#233;es envoy&#233;es
par les clients vers le serveur, tandis que les <em>filtres en sortie
(output filters)</em> traitent les donn&#233;es envoy&#233;es par le
serveur vers un client. Il est possible d'appliquer plusieurs
filtres sur un flux de donn&#233;es, et l'ordre de ces filtres est
configurable.</p>
<p>Apache utilise des filtres en interne pour g&#233;rer les &#171;&nbsp;grosses&nbsp;&#187;
requ&#234;tes ou les requ&#234;tes partielles (NdT sur "byte-range"&nbsp;:
requ&#234;tes portant seulement sur une partie d'un fichier, partie
sp&#233;cifi&#233;e par un pointeur de d&#233;part, et un pointeur de fin).
Certains modules permettent en plus d'utiliser des filtres en
utilisant des directives de configuration. Les filtres sont utilisables
au moyen des directives
<code class="directive"><a href="./mod/core.html#setinputfilter">SetInputFilter</a></code>,
<code class="directive"><a href="./mod/core.html#setoutputfilter">SetOutputFilter</a></code>,
<code class="directive"><a href="./mod/mod_mime.html#addinputfilter">AddInputFilter</a></code>,
<code class="directive"><a href="./mod/mod_mime.html#addoutputfilter">AddOutputFilter</a></code>,
<code class="directive"><a href="./mod/mod_mime.html#removeinputfilter">RemoveInputFilter</a></code>, et
<code class="directive"><a href="./mod/mod_mime.html#removeoutputfilter">RemoveOutputFilter</a></code>
.</p>
<p>Les filtres list&#233;s ci-apr&#232;s sont fournis dans le paquetage Apache et
sont utilisables par tout administrateur.</p>
<dl>
<dt>INCLUDES</dt>
<dd>Gestion des "Server-Side Includes" gr&#226;ce au module
<code class="module"><a href="./mod/mod_include.html">mod_include</a></code></dd>
<dt>DEFLATE</dt>
<dd>Compression des donn&#233;es avant leur envoi au client (filtre en
sortie) au moyen de <code class="module"><a href="./mod/mod_deflate.html">mod_deflate</a></code>
</dd>
</dl>
<p>Le module <code class="module"><a href="./mod/mod_ext_filter.html">mod_ext_filter</a></code> permet &#233;galement
d'utiliser des programmes externes &#224; Apache en tant que filtres.</p>
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