SEC-910: Finishing off http part of namespace appendix

src/docbkx/appendix-namespace.xml

@@ -131,6 +131,19 @@
           <classname>FilterSecurityInterceptor</classname>. Defaults to "true".
         </para>
       </section>
+      
+      <section xml:id="create-session">
+        <title><literal>create-session</literal></title>
+        <para>
+          Controls the eagerness with which an HTTP session is created. If not set, defaults to "ifRequired". Other options are "always" and "never".
+          The setting of this attribute affect the <literal>allowSessionCreation</literal> and <literal>forceEagerSessionCreation</literal>
+          properties of <classname>HttpSessionContextIntegrationFilter</classname>. <literal>allowSessionCreation</literal> will always be true unless
+          this attribute is set to "never". <literal>forceEagerSessionCreation</literal> is "false" unless it is set to "always".
+          So the default configuration allows session creation but does not force it. The exception is if concurrent session control is enabled,
+          when <literal>forceEagerSessionCreation</literal> will be set to true, regardless of what the setting is here. Using "never" would
+          then cause an exception during the initialization of <classname>HttpSessionContextIntegrationFilter</classname>.
+        </para>
+      </section>
     </section>
 
     <section>
@@ -170,7 +183,7 @@
           Can be "http" or "https" depending on whether a particular URL pattern should be accessed over HTTP or HTTPS respectively. Alternatively
           the value "any" can be used when there is no preference. If this attribute is present on any <literal>&lt;intercept-url&gt;</literal>
           element, then a <classname>ChannelProcessingFilter</classname> will be added to the filter stack and its additional dependencies added
-          to the application context. See the <link xlink:href="channel-security-config">chapter on channel security</link> for an
+          to the application context. See the chapter on <link xlink:href="#channel-security-config">channel security</link> for an
           example configuration using traditional beans.
         </para>
         <para>
@@ -324,33 +337,128 @@
     <section xml:id="nsa-concurrent-session-control">
       <title>The <literal>&lt;concurrent-session-control&gt;</literal> Element</title>
       <para>
+        Adds support for concurrent session control, allowing limits to be placed on the number of active sessions a user can have.
+        A <classname>ConcurrentSessionFilter</classname> will be created, along with a <classname>ConcurrentSessionControllerImpl</classname>
+        and an instance of <interfacename>SessionRegistry</interfacename> (a <classname>SessionRegistryImpl</classname> instance unless the user
+        wishes to use a custom bean). The controller is registered with the namespace's <interfacename>AuthenticationManager</interfacename> 
+        (<classname>ProviderManager</classname>). Other namespace-created beans which require a reference to the <interfacename>SessionRegistry</interfacename>
+        will automatically have it injected. 
       </para>
+      <para>
+        Note that the <literal>forceEagerSessionCreation</literal> of <classname>HttpSessionContextIntegrationFilter</classname> will
+        be set to <literal>true</literal> if concurrent session control is in use.
+      </para>
+      
+      <section>
+        <title>The <literal>max-sessions</literal> attribute</title>
+        <para>Maps to the <literal>maximumSessions</literal> property of <classname>ConcurrentSessionControllerImpl</classname>.</para>
+      </section>
+
+      <section>
+        <title>The <literal>expired-url</literal> attribute</title>
+        <para>
+          The URL a user will be redirected to if they attempt to use a session which has been "expired" by 
+          the concurrent session controller because the user has exceeded the number of allowed sessions and has logged 
+          in again elsewhere. Should be set unless <literal>exception-if-maximum-exceeded</literal> is set.
+          If no value is supplied, an expiry message will just be written directly back to the response.
+        </para>
+      </section>
+      
+      <section>
+        <title>The <literal>exception-if-maximum-exceeded</literal> attribute</title>
+        <para>If set to "true" a <exceptionname>ConcurrentLoginException</exceptionname> should be raised when a user 
+          attempts to exceed the maximum allowed number of sessions. The default behaviour is to expire the original session.
+        </para>
+      </section>
+      
+      <section>
+        <title>The <literal>session-registry-alias</literal> and <literal>session-registry-ref</literal> attributes</title>
+        <para>
+          The user can supply their own <interfacename>SessionRegistry</interfacename> implementation using the
+          <literal>session-registry-ref</literal> attribute. The other concurrent session control beans will be wired
+          up to use it. 
+        </para>
+        <para>
+          It can also be useful to have a reference to the internal session registry for use in your own
+          beans or an admin interface. You can expose the interal bean using the <literal>session-registry-alias</literal>
+          attribute, giving it a name that you can use elsewhere in your configuration.
+        </para>
+      </section>
+
     </section>
     
     <section xml:id="nsa-anonymous">
       <title>The <literal>&lt;anonymous&gt;</literal> Element</title>
       <para>
+        Adds an <classname>AnonymousProcessingFilter</classname> to the stack and an <classname>AnonymousAuthenticationProvider</classname>. 
+        Required if you are using the <literal>IS_AUTHENTICATED_ANONYMOUSLY</literal> attribute.
       </para>
     </section>
     
     <section xml:id="nsa-x509">
       <title>The <literal>&lt;x509&gt;</literal> Element</title>
       <para>
+        Adds support for X.509 authentication. An <classname>X509PreAuthenticatedProcessingFilter</classname> will be 
+        added to the stack and a <classname>PreAuthenticatedProcessingFilterEntryPoint</classname> bean will be created. The
+        latter will only be used if no other authentication mechanisms are in use (it's only functionality is to return an HTTP
+        403 error code). A <classname>PreAuthenticatedAuthenticationProvider</classname> will also be created which delegates the
+        loading of user authorities to a <interfacename>UserDetailsService</interfacename>.
       </para>
+      <section>
+        <title>The <literal>subject-principal-regex</literal> attribute</title>
+        <para>
+          Defines a regular expression which will be used to extract the username from the certificate (for use with the
+          <interfacename>UserDetailsService</interfacename>). 
+        </para>
+      </section>
+      <section>
+        <title>The <literal>user-service-ref</literal> attribute</title>
+        <para>
+          Allows a specific <interfacename>UserDetailsService</interfacename> to be used with X.509 in the case where
+          multiple instances are configured. If not set, an attempt will be made to locate a suitable instance automatically and
+          use that.
+        </para>
+      </section>
     </section>
 
     <section xml:id="nsa-openid-login">
       <title>The <literal>&lt;openid-login&gt;</literal> Element</title>
       <para>
+        Similar to <literal>&lt;form-login&gt;</literal> and has the same attributes. The default value for <literal>login-processing-url</literal> 
+        is "/j_spring_openid_security_check". An <classname>OpenIDAuthenticationProcessingFilter</classname> and <classname>OpenIDAuthenticationProvider</classname>
+        will be registered. The latter requires a reference to a <interfacename>UserDetailsService</interfacename>. Again, this can be
+        specified by Id, using the <literal>user-service-ref</literal> attribute, or will be located automatically in the application context.
       </para>
     </section>
 
     <section xml:id="nsa-logout">
       <title>The <literal>&lt;logout&gt;</literal> Element</title>
       <para>
+        Adds a <classname>LogoutFilter</classname> to the filter stack. This is configured 
+        with a <classname>SecurityContextLogoutHandler</classname>.
       </para>
+      <section>
+        <title>The <literal>logout-url</literal> attribute</title>
+        <para>
+          The URL which will cause a logout (i.e. which will be processed by the filter). Defaults to "/j_spring_security_logout".
+        </para>
+      </section>
+      <section>
+        <title>The <literal>logout-success-url</literal> attribute</title>
+        <para>
+          The destination URL which the user will be taken to after logging out. Defaults to "/".
+        </para>
+      </section>
+      <section>
+        <title>The <literal>invalidate-session</literal> attribute</title>
+        <para>
+          Maps to the <literal>invalidateHttpSession</literal> of the <classname>SecurityContextLogoutHandler</classname>.
+          Defaults to "true", so the session will be invalidated on logout.
+        </para>
+      </section>
     </section>
-
   </section>
   
+  <section 
+
 </appendix>

src/docbkx/namespace-config.xml

@@ -29,7 +29,7 @@
         <para>You can find out more about the use of the
           <literal>ldap-server</literal>
           element in the chapter on
-          <link xlink:href="ldap">LDAP</link>.</para>
+          <link xlink:href="#ldap">LDAP</link>.</para>
       </footnote>. Use of a good XML editor while editing the application context file should
       provide information on the attributes and elements that are available. We would recommend that
       you try out the
@@ -89,7 +89,8 @@
           <listitem>
             <para>
               <emphasis>AuthenticationManager</emphasis>
-              - handles authentication requests from other parts of the framework.</para>
+              - handles authentication requests from other parts of the framework. A default 
+            instance will be registered internally by the namespace.</para>
           </listitem>
           <listitem>
             <para>
@@ -123,7 +124,7 @@
       In this section, we'll look at how you can build up a namespace configuration to use some of the main
       features of the framework. Let's assume you initially want to get up and running as quickly as possible 
       and add authentication support and access control to an existing web application, with a few 
-      test logins. The we'll look at how to change over to authenticating against a database or other
+      test logins. Then we'll look at how to change over to authenticating against a database or other
       security information repository. In later sections we'll introduce more advanced namespace configuration
       options.
     </para>