Feed shibboleth.xml configuration data to Filter

git-svn-id: https://subversion.switch.ch/svn/shibboleth/java-idp/trunk@1155 ab3bd59b-922f-494d-bb5f-6f0a3c29deca

diff --git a/src/edu/internet2/middleware/shibboleth/serviceprovider/FilterSupportImpl.java b/src/edu/internet2/middleware/shibboleth/serviceprovider/FilterSupportImpl.java
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index 0000000..f23c2ce
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+++ b/src/edu/internet2/middleware/shibboleth/serviceprovider/FilterSupportImpl.java
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+/*
+ * FilterSupportImpl.java
+ * 
+ * Provide access to the Filter to configuration information
+ * and Session data.
+ * 
+ * --------------------
+ * Copyright 2002, 2004 
+ * University Corporation for Advanced Internet Development, Inc. 
+ * All rights reserved
+ * [Thats all we have to say to protect ourselves]
+ * Your permission to use this code is governed by "The Shibboleth License".
+ * A copy may be found at http://shibboleth.internet2.edu/license.html
+ * [Nothing in copyright law requires license text in every file.]
+ */
+package edu.internet2.middleware.shibboleth.serviceprovider;
+
+import java.util.Map;
+
+import edu.internet2.middleware.shibboleth.common.AAP;
+import edu.internet2.middleware.shibboleth.common.AttributeRule;
+import edu.internet2.middleware.shibboleth.resource.FilterSupport;
+import edu.internet2.middleware.shibboleth.serviceprovider.ServiceProviderConfig.ApplicationInfo;
+
+/**
+ * Provide access from the Filter to the /shibboleth configuration and Sessions.
+ * 
+ * @author Howard Gilbert
+ */
+public class FilterSupportImpl implements FilterSupport {
+    
+    public static ServiceProviderContext context = ServiceProviderContext.getInstance();
+
+    /**
+     * Given a Resource URL, go to the RequestMap logic to find an applicationId.
+     * 
+     * @param url The URL of the Resource presented by the browser
+     * @return applicationId string
+     */
+    public String getApplicationId(String url) {
+        ServiceProviderConfig config = context.getServiceProviderConfig();
+        String applicationId = config.mapRequest(url);
+        return applicationId;
+    }
+    
+    /**
+     * Get the "providerId" (site name) of the ServiceProvider
+     * 
+     * @param applicationId 
+     * @return providerId string
+     */
+    public String getProviderId(String applicationId) {
+        ServiceProviderConfig config = context.getServiceProviderConfig();
+        ApplicationInfo application = config.getApplication(applicationId);
+        String providerId = application.getApplicationConfig().getProviderId();
+        return providerId;
+    }
+    
+    /**
+     * Get the URL of the local AuthenticationAssertionConsumerServlet.
+     * 
+     * @param applicationId
+     * @return URL string
+     */
+    public String getShireUrl(String applicationId) {
+        ServiceProviderConfig config = context.getServiceProviderConfig();
+        ApplicationInfo application = config.getApplication(applicationId);
+        String shireUrl = application.getApplicationConfig().getSessions().getShireURL();
+        return shireUrl;
+    }
+    
+    /**
+     * Get the URL to which the Browser should be initially redirected.
+     * 
+     * @param applicationId
+     * @return URL string
+     */
+    public String getWayfUrl(String applicationId) {
+        ServiceProviderConfig config = context.getServiceProviderConfig();
+        ApplicationInfo application = config.getApplication(applicationId);
+        String wayfUrl = application.getApplicationConfig().getSessions().getWayfURL();
+        return wayfUrl;
+    }
+    
+       /**
+        * Does the requested resource require Shibboleth authentication?
+        * 
+        * @param url  request url
+        * @return     true if Shibboleth is required
+        */
+       public boolean isProtected(String url) {
+           // TODO Add some real logic. This is just a placeholder
+           if (url.endsWith("test.txt"))
+               return true;
+           return false;
+       }
+
+       /**
+        * Get attributes for this Session 
+        * 
+        * @param sessionId
+        * @param applicationId
+        * @return Map of (attribute,value) pairs
+        */
+    public Map /*<String,String>*/ 
+    getSessionAttributes(String sessionId, String applicationId) {
+        SessionManager sm = context.getSessionManager();
+        Session session = 
+            sm.findSession(sessionId, applicationId);
+        if (session==null)
+            return null;
+        Map /*<String,String>*/ attributes = SessionManager.mapAttributes(session);
+        return attributes;
+    }
+
+    /**
+     * Map attribute name to pseudo-HTTP-Headers
+     * 
+     * @param attributeName
+     * @param applicationId
+     * @return null or Header name string
+     */
+    public String getHeader(String attributeName, String applicationId) {
+        ServiceProviderConfig config = context.getServiceProviderConfig();
+        ApplicationInfo application = config.getApplication(applicationId);
+        AAP[] providers = application.getAAPProviders();
+        for (int i=0;i<providers.length;i++) {
+            AAP aap = providers[i];
+            AttributeRule rule = aap.lookup(attributeName, null);
+            if (rule!=null)
+                return rule.getHeader();
+        }
+        return null;
+    }
+
+
+}