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+# GENERATED FROM XML -- DO NOT EDIT
+
+URI: mod_authz_dbd.html.en
+Content-Language: en
+Content-type: text/html; charset=UTF-8
+
+URI: mod_authz_dbd.html.fr.utf8
+Content-Language: fr
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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+<title>mod_authz_dbd - Apache HTTP Server Version 2.4</title>
+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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+<p class="apache">Apache HTTP Server Version 2.4</p>
+<img alt="" src="../images/feather.png" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
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+<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_authz_dbd</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_authz_dbd.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_authz_dbd.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Group Authorization and Login using SQL</td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>authz_dbd_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_authz_dbd.c</td></tr>
+<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.4 and later</td></tr></table>
+<h3>Summary</h3>
+
+ <p>This module provides authorization capabilities so that
+ authenticated users can be allowed or denied access to portions
+ of the web site by group membership. Similar functionality is
+ provided by <code class="module"><a href="../mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code> and
+ <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>, with the exception that
+ this module queries a SQL database to determine whether a
+ user is a member of a group.</p>
+ <p>This module can also provide database-backed user login/logout
+ capabilities. These are likely to be of most value when used
+ in conjunction with <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.</p>
+ <p>This module relies on <code class="module"><a href="../mod/mod_dbd.html">mod_dbd</a></code> to specify
+ the backend database driver and connection parameters, and
+ manage the database connections.</p>
+</div>
+<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#requiredirectives">The Require Directives</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#login">Database Login</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#client">Client Login integration</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#example">Configuration example</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdlogintoreferer">AuthzDBDLoginToReferer</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdquery">AuthzDBDQuery</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdredirectquery">AuthzDBDRedirectQuery</a></li>
+</ul>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_authz_dbd">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_authz_dbd">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code></li>
+<li>
+ <code class="directive"><a href="../mod/mod_authn_dbd.html#authdbduserpwquery">AuthDBDUserPWQuery</a></code>
+</li>
+<li><code class="directive"><a href="../mod/mod_dbd.html#dbdriver">DBDriver</a></code></li>
+<li><code class="directive"><a href="../mod/mod_dbd.html#dbdparams">DBDParams</a></code></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="requiredirectives" id="requiredirectives">The Require Directives</a></h2>
+
+ <p>Apache's <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code>
+ directives are used during the authorization phase to ensure that
+ a user is allowed to access a resource. mod_authz_dbd extends the
+ authorization types with <code>dbd-group</code>, <code>dbd-login</code> and
+ <code>dbd-logout</code>.</p>
+
+ <p>Since v2.4.8, <a href="../expr.html">expressions</a> are supported
+ within the DBD require directives.</p>
+
+<h3><a name="reqgroup" id="reqgroup">Require dbd-group</a></h3>
+
+ <p>This directive specifies group membership that is required for the
+ user to gain access.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-group team
+AuthzDBDQuery "SELECT user_group FROM authz WHERE user = %s"</pre>
+
+
+
+
+<h3><a name="reqlogin" id="reqlogin">Require dbd-login</a></h3>
+
+ <p>This directive specifies a query to be run indicating the user
+ has logged in.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-login
+AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"</pre>
+
+
+
+
+<h3><a name="reqlogout" id="reqlogout">Require dbd-logout</a></h3>
+
+ <p>This directive specifies a query to be run indicating the user
+ has logged out.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-logout
+AuthzDBDQuery "UPDATE authn SET login = 'false' WHERE user = %s"</pre>
+
+
+
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="login" id="login">Database Login</a></h2>
+
+<p>
+In addition to the standard authorization function of checking group
+membership, this module can also provide server-side user session
+management via database-backed login/logout capabilities.
+Specifically, it can update a user's session status in the database
+whenever the user visits designated URLs (subject of course to users
+supplying the necessary credentials).</p>
+<p>This works by defining two special
+<code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> types:
+<code>Require dbd-login</code> and <code>Require dbd-logout</code>.
+For usage details, see the configuration example below.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="client" id="client">Client Login integration</a></h2>
+
+<p>Some administrators may wish to implement client-side session
+management that works in concert with the server-side login/logout
+capabilities offered by this module, for example, by setting or unsetting
+an HTTP cookie or other such token when a user logs in or out.</p>
+<p>To support such integration, <code class="module"><a href="../mod/mod_authz_dbd.html">mod_authz_dbd</a></code> exports an
+optional hook that will be run whenever a user's status is updated in
+the database. Other session management modules can then use the hook
+to implement functions that start and end client-side sessions.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="example" id="example">Configuration example</a></h2>
+
+<pre class="prettyprint lang-config"># mod_dbd configuration
+DBDriver pgsql
+DBDParams "dbname=apacheauth user=apache pass=xxxxxx"
+
+DBDMin 4
+DBDKeep 8
+DBDMax 20
+DBDExptime 300
+
+&lt;Directory "/usr/www/my.site/team-private/"&gt;
+ # mod_authn_core and mod_auth_basic configuration
+ # for mod_authn_dbd
+ AuthType Basic
+ AuthName Team
+ AuthBasicProvider dbd
+
+ # mod_authn_dbd SQL query to authenticate a logged-in user
+ AuthDBDUserPWQuery \
+ "SELECT password FROM authn WHERE user = %s AND login = 'true'"
+
+ # mod_authz_core configuration for mod_authz_dbd
+ Require dbd-group team
+
+ # mod_authz_dbd configuration
+ AuthzDBDQuery "SELECT group FROM authz WHERE user = %s"
+
+ # when a user fails to be authenticated or authorized,
+ # invite them to login; this page should provide a link
+ # to /team-private/login.html
+ ErrorDocument 401 "/login-info.html"
+
+ &lt;Files "login.html"&gt;
+ # don't require user to already be logged in!
+ AuthDBDUserPWQuery "SELECT password FROM authn WHERE user = %s"
+
+ # dbd-login action executes a statement to log user in
+ Require dbd-login
+ AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"
+
+ # return user to referring page (if any) after
+ # successful login
+ AuthzDBDLoginToReferer On
+ &lt;/Files&gt;
+
+ &lt;Files "logout.html"&gt;
+ # dbd-logout action executes a statement to log user out
+ Require dbd-logout
+ AuthzDBDQuery "UPDATE authn SET login = 'false' WHERE user = %s"
+ &lt;/Files&gt;
+&lt;/Directory&gt;</pre>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="AuthzDBDLoginToReferer" id="AuthzDBDLoginToReferer">AuthzDBDLoginToReferer</a> <a name="authzdbdlogintoreferer" id="authzdbdlogintoreferer">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Determines whether to redirect the Client to the Referring
+page on successful login or logout if a <code>Referer</code> request
+header is present</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDLoginToReferer On|Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthzDBDLoginToReferer Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>In conjunction with <code>Require dbd-login</code> or
+ <code>Require dbd-logout</code>, this provides the option to
+ redirect the client back to the Referring page (the URL in
+ the <code>Referer</code> HTTP request header, if present).
+ When there is no <code>Referer</code> header,
+ <code>AuthzDBDLoginToReferer On</code> will be ignored.</p>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="AuthzDBDQuery" id="AuthzDBDQuery">AuthzDBDQuery</a> <a name="authzdbdquery" id="authzdbdquery">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify the SQL Query for the required operation</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDQuery <var>query</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>The <code class="directive">AuthzDBDQuery</code> specifies an SQL
+ query to run. The purpose of the query depends on the
+ <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> directive in
+ effect.</p>
+ <ul>
+ <li>When used with a <code>Require dbd-group</code> directive,
+ it specifies a query to look up groups for the current user. This is
+ the standard functionality of other authorization modules such as
+ <code class="module"><a href="../mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code> and <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>.
+ The first column value of each row returned by the query statement
+ should be a string containing a group name. Zero, one, or more rows
+ may be returned.
+ <pre class="prettyprint lang-config">Require dbd-group
+AuthzDBDQuery "SELECT group FROM groups WHERE user = %s"</pre>
+
+ </li>
+ <li>When used with a <code>Require dbd-login</code> or
+ <code>Require dbd-logout</code> directive, it will never deny access,
+ but will instead execute a SQL statement designed to log the user
+ in or out. The user must already be authenticated with
+ <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.
+ <pre class="prettyprint lang-config">Require dbd-login
+AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"</pre>
+
+ </li>
+ </ul>
+ <p>In all cases, the user's ID will be passed as a single string
+ parameter when the SQL query is executed. It may be referenced within
+ the query statement using a <code>%s</code> format specifier.</p>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="AuthzDBDRedirectQuery" id="AuthzDBDRedirectQuery">AuthzDBDRedirectQuery</a> <a name="authzdbdredirectquery" id="authzdbdredirectquery">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify a query to look up a login page for the user</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDRedirectQuery <var>query</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>Specifies an optional SQL query to use after successful login
+ (or logout) to redirect the user to a URL, which may be
+ specific to the user. The user's ID will be passed as a single string
+ parameter when the SQL query is executed. It may be referenced within
+ the query statement using a <code>%s</code> format specifier.</p>
+ <pre class="prettyprint lang-config">AuthzDBDRedirectQuery "SELECT userpage FROM userpages WHERE user = %s"</pre>
+
+ <p>The first column value of the first row returned by the query
+ statement should be a string containing a URL to which to redirect
+ the client. Subsequent rows will be ignored. If no rows are returned,
+ the client will not be redirected.</p>
+ <p>Note that <code class="directive">AuthzDBDLoginToReferer</code> takes
+ precedence if both are set.</p>
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_authz_dbd.html" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_authz_dbd.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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+<p class="apache">Serveur HTTP Apache Version 2.4</p>
+<img alt="" src="../images/feather.png" /></div>
+<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
+<div id="path">
+<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 2.4</a> &gt; <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Module Apache mod_authz_dbd</h1>
+<div class="toplang">
+<p><span>Langues Disponibles: </span><a href="../en/mod/mod_authz_dbd.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_authz_dbd.html" title="Français">&nbsp;fr&nbsp;</a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Autorisation en groupe et reconnaissance d'identité avec base
+SQL</td></tr>
+<tr><th><a href="module-dict.html#Status">Statut:</a></th><td>Extension</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Identificateur de Module:</a></th><td>authz_dbd_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Fichier Source:</a></th><td>mod_authz_dbd.c</td></tr>
+<tr><th><a href="module-dict.html#Compatibility">Compatibilité:</a></th><td>Disponible dans les versions 2.4 et supérieures
+d'Apache</td></tr></table>
+<h3>Sommaire</h3>
+
+ <p>Ce module fournit des fonctionnalités d'autorisation permettant
+ d'accorder ou de refuser aux utilisateurs authentifiés l'accès à
+ certaines zones du site web en fonction de leur appartenance à tel
+ ou tel groupe. Les modules <code class="module"><a href="../mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code> et
+ <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code> fournissent une fonctionnalité
+ similaire, mais ici le module interroge une base de données SQL pour
+ déterminer si un utilisateur appartient ou non à tel ou tel groupe.</p>
+ <p>Ce module propose également des fonctionnalités de connexion
+ utilisateur s'appuyant sur une base de données, ce qui peut se révéler
+ particulièrement utile lorsque le module est utilisé conjointement avec
+ <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.</p>
+ <p>Ce module s'appuie sur <code class="module"><a href="../mod/mod_dbd.html">mod_dbd</a></code> pour spécifier le
+ pilote de la base de données sous-jacente et les paramètres de
+ connexion, et gérer les connexions à la base de données.</p>
+</div>
+<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Sujets</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#requiredirectives">Les directives Require</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#login">Reconnaissance d'identité s'appuyant sur une base de données</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#client">Reconnaissance d'identité côté client</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#example">Exemple de configuration</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdlogintoreferer">AuthzDBDLoginToReferer</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdquery">AuthzDBDQuery</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdredirectquery">AuthzDBDRedirectQuery</a></li>
+</ul>
+<h3>Traitement des bugs</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">Journal des modifications de httpd</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_authz_dbd">Problèmes connus</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_authz_dbd">Signaler un bug</a></li></ul><h3>Voir aussi</h3>
+<ul class="seealso">
+<li><code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code></li>
+<li>
+ <code class="directive"><a href="../mod/mod_authn_dbd.html#authdbduserpwquery">AuthDBDUserPWQuery</a></code>
+</li>
+<li><code class="directive"><a href="../mod/mod_dbd.html#dbdriver">DBDriver</a></code></li>
+<li><code class="directive"><a href="../mod/mod_dbd.html#dbdparams">DBDParams</a></code></li>
+<li><a href="#comments_section">Commentaires</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="requiredirectives" id="requiredirectives">Les directives Require</a></h2>
+
+ <p>Les directives <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> d'Apache permettent,
+ au cours de la phase d'autorisation, de s'assurer qu'un utilisateur
+ est bien autorisé à accéder à une ressource. mod_authz_dbd ajoute
+ les types d'autorisation <code>dbd-group</code>,
+ <code>dbd-login</code> et <code>dbd-logout</code>.</p>
+
+ <p>A partir de la version 2.4.8, les directives require DBD
+ supportent les <a href="../expr.html">expressions</a>.</p>
+
+<h3><a name="reqgroup" id="reqgroup">Require dbd-group</a></h3>
+
+ <p>Cette directive permet de spécifier à quel groupe un utilisateur
+ doit appartenir pour obtenir l'autorisation d'accès.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-group team
+AuthzDBDQuery "SELECT user_group FROM authz WHERE user = %s"</pre>
+
+
+
+
+<h3><a name="reqlogin" id="reqlogin">Require dbd-login</a></h3>
+
+ <p>Cette directive permet de spécifier une requête à exécuter pour
+ indiquer que l'utilisateur s'est authentifié.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-login
+AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"</pre>
+
+
+
+
+<h3><a name="reqlogout" id="reqlogout">Require dbd-logout</a></h3>
+
+ <p>Cette directive permet de spécifier une requête à exécuter pour
+ indiquer que l'utilisateur s'est déconnecté.</p>
+
+ <pre class="prettyprint lang-config">Require dbd-logout
+AuthzDBDQuery "UPDATE authn SET login = 'false' WHERE user = %s"</pre>
+
+
+
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="login" id="login">Reconnaissance d'identité s'appuyant sur une base de données</a></h2>
+
+<p>
+Outre sa fonction d'autorisation standard consistant à vérifier
+l'appartenance à des groupes, ce module permet aussi de gérer des
+sessions utilisateur côté serveur grâce à sa fonctionnalité de connexion utilisateur
+en s'appuyant sur une base de données. En particulier, il peut mettre à
+jour le statut de session de l'utilisateur dans la base de données
+chaque fois que celui-ci visite certaines URLs (sous réserve bien
+entendu que l'utilisateur fournissent les informations de connexion
+nécessaires).</p>
+<p>Pour cela, il faut definir deux directives <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> spéciales : <code>Require
+dbd-login</code> et <code>Require dbd-logout</code>. Pour les détails de
+leur utilisation, voir l'exemple de configuration ci-dessous.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="client" id="client">Reconnaissance d'identité côté client</a></h2>
+
+<p>Certains administrateurs peuvent vouloir implémenter une gestion de
+session côté client fonctionnant de concert avec les fonctionnalités de
+connexion/déconnexion des utilisateurs côté serveur offertes par ce module, en
+définissant ou en annulant par exemple un cookie HTTP ou un jeton
+similaire lorsqu'un utilisateur se connecte ou se déconnecte.</p>
+
+<p>Pour supporter une telle intégration, <code class="module"><a href="../mod/mod_authz_dbd.html">mod_authz_dbd</a></code> exporte
+un programme à déclenchement optionnel (hook) qui sera lancé chaque fois
+que le statut d'un utilisateur sera mis à jour dans la base de données.
+D'autres modules de gestion de session pourront alors utiliser ce
+programme pour implémenter des fonctions permettant d'ouvrir et de
+fermer des sessions côté client.</p>
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="example" id="example">Exemple de configuration</a></h2>
+
+<pre class="prettyprint lang-config"># configuration de mod_dbd
+DBDriver pgsql
+DBDParams "dbname=apacheauth user=apache pass=xxxxxx"
+
+DBDMin 4
+DBDKeep 8
+DBDMax 20
+DBDExptime 300
+
+&lt;Directory "/usr/www/mon.site/team-private/"&gt;
+ # configuration de mod_authn_core et mod_auth_basic
+ # pour mod_authn_dbd
+ AuthType Basic
+ AuthName Team
+ AuthBasicProvider dbd
+
+ # requête SQL de mod_authn_dbd pour authentifier un utilisateur qui se
+ # connecte
+ AuthDBDUserPWQuery \
+ "SELECT password FROM authn WHERE user = %s AND login = 'true'"
+
+ # configuration de mod_authz_core pour mod_authz_dbd
+ Require dbd-group team
+
+ # configuration de mod_authz_dbd
+ AuthzDBDQuery "SELECT group FROM authz WHERE user = %s"
+
+ # lorsqu'un utilisateur échoue dans sa tentative d'authentification ou
+ # d'autorisation, on l'invite à se connecter ; cette page doit
+ # contenir un lien vers /team-private/login.html
+ ErrorDocument 401 "/login-info.html"
+
+ &lt;Files "login.html"&gt;
+ # il n'est pas nécessaire que l'utilisateur soit déjà connecté !
+ AuthDBDUserPWQuery "SELECT password FROM authn WHERE user = %s"
+
+ # le processus de connexion dbd exécute une requête pour enregistrer
+ # la connexion de l'utilisateur
+ Require dbd-login
+ AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"
+
+ # redirige l'utilisateur vers la page d'origine (si elle existe)
+ # après une connexion réussie
+ AuthzDBDLoginToReferer On
+ &lt;/Files&gt;
+
+ &lt;Files "logout.html"&gt;
+ # le processus de déconnexion dbd exécute une requête pour
+ # enregistrer la déconnexion de l'utilisateur
+ Require dbd-logout
+ AuthzDBDQuery "UPDATE authn SET login = 'false' WHERE user = %s"
+ &lt;/Files&gt;
+&lt;/Directory&gt;</pre>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="authzdbdlogintoreferer" id="authzdbdlogintoreferer">Directive</a> <a name="AuthzDBDLoginToReferer" id="AuthzDBDLoginToReferer">AuthzDBDLoginToReferer</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Définit si le client doit être redirigé vers la page
+d'origine en cas de connexion ou de déconnexion réussie si un en-tête
+de requête <code>Referer</code> est présent</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>AuthzDBDLoginToReferer On|Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Défaut:</a></th><td><code>AuthzDBDLoginToReferer Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>répertoire</td></tr>
+<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>Utilisée en conjonction avec <code>Require dbd-login</code> ou
+ <code>Require dbd-logout</code>, cette directive permet de rediriger
+ le client vers la page d'origine (l'URL contenue dans l'en-tête
+ de requête HTTP <code>Referer</code>, s'il est présent). En
+ l'absence d'en-tête <code>Referer</code>, la définition
+ <code>AuthzDBDLoginToReferer On</code> sera ignorée.</p>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="authzdbdquery" id="authzdbdquery">Directive</a> <a name="AuthzDBDQuery" id="AuthzDBDQuery">AuthzDBDQuery</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Définit la requête SQL pour l'opération requise</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>AuthzDBDQuery <var>requête</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>répertoire</td></tr>
+<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>La directive <code class="directive">AuthzDBDQuery</code> permet de
+ spécifier une requête SQL à exécuter. Le but de cette requête dépend
+ de la directive <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> en cours de
+ traitement.</p>
+ <ul>
+ <li>Avec la directive <code>Require dbd-group</code>, elle spécifie
+ une requête permettant de rechercher les groupes d'appartenance de
+ l'utilisateur courant. Ceci correspond à la fonctionnalité standard
+ d'autres modules d'autorisation comme
+ <code class="module"><a href="../mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code> et
+ <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>.
+ La première colonne de chaque enregistrement renvoyé par la requête
+ doit contenir une chaîne de caractères correspondant à un nom de
+ groupe. La requête peut renvoyer zéro, un ou plusieurs
+ enregistrements.
+ <pre class="prettyprint lang-config">Require dbd-group
+AuthzDBDQuery "SELECT group FROM groups WHERE user = %s"</pre>
+
+ </li>
+ <li>Avec la directive <code>Require dbd-login</code> ou
+ <code>Require dbd-logout</code>, elle ne refusera jamais l'accès,
+ mais au contraire exécutera une requête SQL permettant d'enregistrer
+ la connexion ou la déconnexion de l'utilisateur. Ce dernier doit
+ être déjà authentifié avec <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.
+ <pre class="prettyprint lang-config">Require dbd-login
+AuthzDBDQuery "UPDATE authn SET login = 'true' WHERE user = %s"</pre>
+
+ </li>
+ </ul>
+ <p>Dans tous les cas, l'identifiant utilisateur sera transmis comme
+ paramètre sous la forme d'une simple chaîne lorsque la requête SQL
+ sera exécutée. Il y sera fait référence dans la requête en utilisant
+ le spécificateur de format <code>%s</code>.</p>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="authzdbdredirectquery" id="authzdbdredirectquery">Directive</a> <a name="AuthzDBDRedirectQuery" id="AuthzDBDRedirectQuery">AuthzDBDRedirectQuery</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Définit une requête pour rechercher une page vers laquelle
+rediriger l'utilisateur après une connexion réussie</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntaxe:</a></th><td><code>AuthzDBDRedirectQuery <var>requête</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Contexte:</a></th><td>répertoire</td></tr>
+<tr><th><a href="directive-dict.html#Status">Statut:</a></th><td>Extension</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authz_dbd</td></tr>
+</table>
+ <p>Spécifie une requête SQL optionnelle à utiliser après une
+ connexion (ou une déconnexion) réussie pour rediriger l'utilisateur
+ vers une URL, qui peut être spécifique à l'utilisateur.
+ L'identifiant utilisateur sera transmis comme paramètre sous la
+ forme d'une simple chaîne lorsque la requête SQL sera exécutée. Il y
+ sera fait référence dans la requête en utilisant le spécificateur de
+ format <code>%s</code>.</p>
+ <pre class="prettyprint lang-config">AuthzDBDRedirectQuery "SELECT userpage FROM userpages WHERE user = %s"</pre>
+
+ <p>La première colonne du premier enregistrement renvoyé par la
+ requête doit contenir une chaîne de caractères correspondant à une
+ URL vers laquelle rediriger le client. Les enregistrements suivants
+ sont ignorés. Si aucun enregistrement n'est renvoyé, le client ne
+ sera pas redirigé.</p>
+ <p>Notez que <code class="directive">AuthzDBDLoginToReferer</code> l'emporte
+ sur cette directive si les deux sont définies.</p>
+
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Langues Disponibles: </span><a href="../en/mod/mod_authz_dbd.html" hreflang="en" rel="alternate" title="English">&nbsp;en&nbsp;</a> |
+<a href="../fr/mod/mod_authz_dbd.html" title="Français">&nbsp;fr&nbsp;</a></p>
+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Commentaires</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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