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<html lang="en"><head><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><link href="../images/docs-stylesheet.css" rel="stylesheet" type="text/css"><title>Apache Tomcat 11 Configuration Reference (11.0.2) - Jakarta Authentication (formerly JASPIC)</title></head><body><div id="wrapper"><header><div id="header"><div><div><div class="logo noPrint"><a href="https://tomcat.apache.org/"><img alt="Tomcat Home" src="../images/tomcat.png"></a></div><div style="height: 1px;"></div><div class="asfLogo noPrint"><a href="https://www.apache.org/" target="_blank"><img src="../images/asf-logo.svg" alt="The Apache Software Foundation" style="width: 266px; height: 83px;"></a></div><h1>Apache Tomcat 11 Configuration Reference</h1><div class="versionInfo">
            Version 11.0.2,
            <time datetime="2024-12-05">Dec 5 2024</time></div><div style="height: 1px;"></div><div style="clear: left;"></div></div></div></div></header><div id="middle"><div><div id="mainLeft" class="noprint"><div><nav><div><h2>Links</h2><ul><li><a href="../index.html">Docs Home</a></li><li><a href="index.html">Config Ref. Home</a></li><li><a href="https://cwiki.apache.org/confluence/display/TOMCAT/FAQ">FAQ</a></li><li><a href="#comments_section">User Comments</a></li></ul></div><div><h2>Top Level Elements</h2><ul><li><a href="server.html">Server</a></li><li><a href="service.html">Service</a></li></ul></div><div><h2>Executors</h2><ul><li><a href="executor.html">Executor</a></li></ul></div><div><h2>Connectors</h2><ul><li><a href="http.html">HTTP/1.1</a></li><li><a href="http2.html">HTTP/2</a></li><li><a href="ajp.html">AJP</a></li></ul></div><div><h2>Containers</h2><ul><li><a href="context.html">Context</a></li><li><a href="engine.html">Engine</a></li><li><a href="host.html">Host</a></li><li><a href="cluster.html">Cluster</a></li></ul></div><div><h2>Nested Components</h2><ul><li><a href="cookie-processor.html">CookieProcessor</a></li><li><a href="credentialhandler.html">CredentialHandler</a></li><li><a href="globalresources.html">Global Resources</a></li><li><a href="jar-scanner.html">JarScanner</a></li><li><a href="jar-scan-filter.html">JarScanFilter</a></li><li><a href="listeners.html">Listeners</a></li><li><a href="loader.html">Loader</a></li><li><a href="manager.html">Manager</a></li><li><a href="realm.html">Realm</a></li><li><a href="resources.html">Resources</a></li><li><a href="sessionidgenerator.html">SessionIdGenerator</a></li><li><a href="valve.html">Valve</a></li></ul></div><div><h2>Cluster Elements</h2><ul><li><a href="cluster.html">Cluster</a></li><li><a href="cluster-manager.html">Manager</a></li><li><a href="cluster-channel.html">Channel</a></li><li><a href="cluster-membership.html">Channel/Membership</a></li><li><a href="cluster-sender.html">Channel/Sender</a></li><li><a href="cluster-receiver.html">Channel/Receiver</a></li><li><a href="cluster-interceptor.html">Channel/Interceptor</a></li><li><a href="cluster-valve.html">Valve</a></li><li><a href="cluster-deployer.html">Deployer</a></li><li><a href="cluster-listener.html">ClusterListener</a></li></ul></div><div><h2>web.xml</h2><ul><li><a href="filter.html">Filter</a></li></ul></div><div><h2>Other</h2><ul><li><a href="systemprops.html">System properties</a></li><li><a href="jaspic.html">Jakarta Authentication</a></li></ul></div></nav></div></div><div id="mainRight"><div id="content"><h2>Jakarta Authentication (formerly JASPIC)</h2><h3 id="Table_of_Contents">Table of Contents</h3><div class="text">
<ul><li><a href="#Introduction">Introduction</a></li><li><a href="#Static_configuration">Static configuration</a><ol><li><a href="#AuthConfigProvider">AuthConfigProvider</a></li><li><a href="#ServerAuthModule">ServerAuthModule</a></li></ol></li><li><a href="#Dynamic_configuration">Dynamic configuration</a></li><li><a href="#3rd_party_modules">3rd party modules</a><ol><li><a href="#Philip_Green_II's_module_for_Google_OAuth_2">Philip Green II's module for Google OAuth 2</a></li></ol></li></ul>
</div><h3 id="Introduction">Introduction</h3><div class="text">

  <p>Tomcat implements <a href="https://jakarta.ee/specifications/authentication/3.1/">Jakarta
  Authentication 3.1</a>. The implementation is primarily intended to enable the
  integration of 3rd party authentication implementations with Tomcat.</p>

  <p>Jakarta Authentication may be configured in one of two ways:</p>
  <ul>
    <li>At the container level via the static configuration file
        <code>$CATALINA_BASE/conf/jaspic-providers.xml</code>. With this
        approach all required classes must be visible to Tomcat's Common class
        loader which normally means placing a JAR in
        <code>$CATALINA_BASE/lib</code>.</li>
     <li>At the web application level via dynamic configuration using the
         Jakarta Authentication API. With this approach all required classes
         must be visible to the web application class loader which normally
         means placing a JAR in the web application's <code>WEB-INF/lib</code>
         directory.</li>
  </ul>

  <p>Users should be aware that if the static Jakarta Authentication
     configuration file configures Jakarta Authentication for a given web
     application then the Jakarta Authentication configuration will take
     precedence over any <code>&lt;login-config&gt;</code> present in the web
     application's <code>WEB-INF/web.xml</code> file.</p>

</div><h3 id="Static_configuration">Static configuration</h3><div class="text">

  <div class="subsection"><h4 id="AuthConfigProvider">AuthConfigProvider</h4><div class="text">

    <p>If the 3rd party implementation includes an
    <code>AuthConfigProvider</code> then a web application can be configured to
    use it by nesting the following inside the
    <code>&lt;jaspic-providers&gt;</code> element in
    <code>$CATALINA_BASE/conf/jaspic-providers.xml</code>.</p>
<div class="codeBox"><pre><code>&lt;provider name="any"
          className="fully.qualified.implementation.class.Name"
          layer="HttpServlet"
          appContext="Catalina/localhost /contextPath"
          description="any"&gt;
  &lt;property name="see-provider-documentation"
            value="see-provider-documentation" /&gt;
&lt;/provider&gt;</code></pre></div>

    <p>The <code>name</code> and <code>description</code> attributes are not
    used by Tomcat.</p>

    <p>The <code>className</code> attribute must be the fully qualified class
    name of the <code>AuthConfigProvider</code>. The implementation may be
    packaged with the web application or in Tomcat's
    <code>$CATALINA_BASE/lib</code> directory.</p>

    <p>The <code>layer</code> attribute must be <code>HttpServlet</code>.</p>

    <p>The <code>appContext</code> attribute must be exactly the concatenation
    of:</p>
    <ul>
      <li>The engine name</li>
      <li>The forward slash character</li>
      <li>The host name</li>
      <li>A single space</li>
      <li>The context path</li>
    </ul>

    <p>If the <code>AuthConfigProvider</code> supports configuration via
    properties these may be specified via <code>&lt;property&gt;</code> elements
    nesting inside the <code>&lt;provide&gt;</code> element.</p>

  </div></div>

  <div class="subsection"><h4 id="ServerAuthModule">ServerAuthModule</h4><div class="text">

    <p>If the 3rd party implementation only provides an
    <code>ServerAuthModule</code> then it will be necessary to provide a number
    of supporting classes. These may be a custom implementation or,
    alternatively, Tomcat provides a simple wrapper implementation for
    <code>ServerAuthModule</code>s.
    </p>

    <p>Tomcat's wrapper for <code>ServerAuthModule</code> can be configured
    by nesting the following inside the
    <code>&lt;jaspic-providers&gt;</code> element in
    <code>$CATALINA_BASE/conf/jaspic-providers.xml</code>.</p>
<div class="codeBox"><pre><code>&lt;provider name="any"
          className="org.apache.catalina.authenticator.jaspic.SimpleAuthConfigProvider"
          layer="HttpServlet"
          appContext="Catalina/localhost /contextPath"
          description="any"&gt;
  &lt;property name="org.apache.catalina.authenticator.jaspic.ServerAuthModule.1"
            value="fully.qualified.implementation.class.Name" /&gt;
  &lt;property name="see-provider-documentation"
            value="see-provider-documentation" /&gt;
&lt;/provider&gt;</code></pre></div>

    <p>The configuration is similar to the <code>AuthConfigProvider</code> in
    the previous section but with some key differences.</p>

    <p>The <code>className</code> attribute must be
    <code>org.apache.catalina.authenticator.jaspic.SimpleAuthConfigProvider</code>.</p>

    <p>The <code>ServerAuthModule</code>(s) are specified via properties. The
    property name must be
    <code>org.apache.catalina.authenticator.jaspic.ServerAuthModule.n</code>
    where <code>n</code> is the index of the module. The index must start at 1
    an increment in steps of 1 until all modules are defined. The value of the
    property must be the fully qualified class name of the module.</p>
  </div></div>

</div><h3 id="Dynamic_configuration">Dynamic configuration</h3><div class="text">

  <p>Jakarta Authentication modules and configuration can be packaged within a
  WAR file with the web application. The web application can then register the
  required Jakarta Authentication configuration when it starts using the
  standard Jakarta Authentication APIs.</p>

  <p>If parallel deployment is being used then dynamic configuration should not
  be used. The Jakarta Authentication API assumes that a context path is unique
  for any given host which is not the case when using parallel deployment. When
  using parallel deployment, static Jakarta Authentication configuration should
  be used. This will require that all versions of the application use the same
  Jakarta Authentication configuration.</p>

</div><h3 id="3rd_party_modules">3rd party modules</h3><div class="text">

  <p>This is not an exhaustive list. The Tomcat community welcomes contributions
  that add to this section.</p>

  <div class="subsection"><h4 id="Philip_Green_II's_module_for_Google_OAuth_2">Philip Green II's module for Google OAuth 2</h4><div class="text">

    <p>The source code for this module along with the
    <a href="https://github.com/phillipgreenii/google-oauth-2.0-serverauthmodule">documentation</a>
    which includes details of the necessary Google API configuration is
    available on GitHub.</p>

    <p>A sample configuration for using this module with Tomcat would look like
    this:</p>
<div class="codeBox"><pre><code>&lt;jaspic-providers xmlns="https://tomcat.apache.org/xml"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xsi:schemaLocation="https://tomcat.apache.org/xml jaspic-providers.xsd"
                  version="1.0"&gt;
  &lt;provider name="google-oauth"
            className="org.apache.catalina.authenticator.jaspic.SimpleAuthConfigProvider"
            layer="HttpServlet"
            appContext="Catalina/localhost /contextPath"
            description="Google OAuth test"&gt;
    &lt;property name="org.apache.catalina.authenticator.jaspic.ServerAuthModule.1"
              value="com.idmworks.security.google.GoogleOAuthServerAuthModule" /&gt;
    &lt;property name="oauth.clientid"
              value="obtained-from-Google-console" /&gt;
    &lt;property name="oauth.clientsecret"
              value="obtained-from-Google-console" /&gt;
    &lt;property name="ignore_missing_login_context"
              value="true" /&gt;
  &lt;/provider&gt;
&lt;/jaspic-providers&gt;</code></pre></div>
  </div></div>

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