Use truly generic HTTP-based credentials object, rename project to guacamole-auth (truly, this is a basic framework for extending Guacamole, a single webapp, NOT part of guacamole-common, which is the basis of the Guacamole webapp and potentially others).

guacamole-ext/pom.xml

@@ -3,10 +3,10 @@
 
     <modelVersion>4.0.0</modelVersion>
     <groupId>net.sourceforge.guacamole</groupId>
-    <artifactId>guacamole-common-auth</artifactId>
+    <artifactId>guacamole-auth</artifactId>
     <packaging>jar</packaging>
     <version>0.6.0</version>
-    <name>guacamole-common-auth</name>
+    <name>guacamole-auth</name>
     <url>http://guacamole.sourceforge.net/</url>
 
     <properties>
@@ -31,6 +31,14 @@
 
     <dependencies>
 
+        <!-- Java servlet API -->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>servlet-api</artifactId>
+            <version>2.5</version>
+            <scope>provided</scope>
+        </dependency>
+
         <!-- Guacamole Java API -->
         <dependency>
             <groupId>net.sourceforge.guacamole</groupId>

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/AuthenticationProvider.java

@@ -43,13 +43,11 @@ import net.sourceforge.guacamole.protocol.GuacamoleConfiguration;
 
 /**
  * Provides means of retrieving a set of named GuacamoleConfigurations for a
- * given arbitrary credentials object.
+ * given Credentials object.
  * 
  * @author Michael Jumper
- * @param <CredentialType> The type to use as credentials for determining which
- *                         configurations are authorized.
  */
-public interface AuthenticationProvider<CredentialType> {
+public interface AuthenticationProvider {
 
     /**
      * Given an arbitrary credentials object, returns a Map containing all
@@ -64,7 +62,7 @@ public interface AuthenticationProvider<CredentialType> {
      *                            configurations.
      */
     public Map<String, GuacamoleConfiguration>
-            getAuthorizedConfigurations(CredentialType credentials)
+            getAuthorizedConfigurations(Credentials credentials)
             throws GuacamoleException;
 
 }

guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/Credentials.java

@@ -1,5 +1,8 @@
 package net.sourceforge.guacamole.net.auth;
 
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
@@ -43,7 +46,7 @@ package net.sourceforge.guacamole.net.auth;
  * 
  * @author Michael Jumper
  */
-public class UsernamePassword {
+public class Credentials {
 
     /**
      * An arbitrary username.
@@ -55,6 +58,16 @@ public class UsernamePassword {
      */
     private String password;
 
+    /**
+     * The HttpServletRequest carrying additional credentials, if any.
+     */
+    private HttpServletRequest request;
+
+    /**
+     * The HttpSession carrying additional credentials, if any.
+     */
+    private HttpSession session;
+    
     /**
      * Returns the password associated with this username/password pair.
      * @return The password associated with this username/password pair, or
@@ -91,4 +104,20 @@ public class UsernamePassword {
         this.username = username;
     }
 
+    public HttpServletRequest getRequest() {
+        return request;
+    }
+
+    public void setRequest(HttpServletRequest request) {
+        this.request = request;
+    }
+
+    public HttpSession getSession() {
+        return session;
+    }
+
+    public void setSession(HttpSession session) {
+        this.session = session;
+    }
+
 }