First implementation. JM-234

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1665 b35dd754-fafc-0310-a699-88a17e54d16e

src/plugins/presence/src/java/org/jivesoftware/messenger/plugin/presence/XMLPresenceProvider.java

@@ -11,29 +11,72 @@
 
 package org.jivesoftware.messenger.plugin.presence;
 
+import org.jivesoftware.messenger.XMPPServer;
+import org.jivesoftware.messenger.user.User;
+import org.jivesoftware.messenger.user.UserNotFoundException;
+import org.xmpp.packet.JID;
+import org.xmpp.packet.PacketError;
 import org.xmpp.packet.Presence;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
 
 /**
  * The XMLPresenceProvider provides information about the users presence in XML format.
- * The returned XML format has the following structure:
- *
- *
+ * The returned XML will include the last known presence of the user. If the user is offline
+ * then the unavailable presence will be recreated with the last known presence status.
  *
  * @author Gaston Dombiak
- *
  */
 class XMLPresenceProvider extends PresenceInfoProvider {
 
-    public void sendInfo(HttpServletRequest httpServletRequest,
-            HttpServletResponse httpServletResponse, Presence presence) {
-        //TODO Implement
+    public void sendInfo(HttpServletRequest request, HttpServletResponse response,
+            Presence presence) throws IOException {
+        response.setContentType("text/xml");
+        PrintWriter out = response.getWriter();
+        if (presence == null) {
+            // Recreate the unavailable presence with the last known status
+            String username = request.getParameter("username");
+            presence = new Presence(Presence.Type.unavailable);
+            XMPPServer server = XMPPServer.getInstance();
+            try {
+                User user = server.getUserManager().getUser(username);
+                String status = server.getPresenceManager().getLastPresenceStatus(user);
+                if (status != null) {
+                    presence.setStatus(status);
+                }
+            }
+            catch (UserNotFoundException e) {}
+            presence.setFrom(server.createJID(username, null));
+        }
+        out.println(presence.toXML());
+        out.flush();
     }
 
-    public void sendUserNotFound(HttpServletRequest httpServletRequest,
-            HttpServletResponse httpServletResponse) {
-        //TODO Implement
+    public void sendUserNotFound(HttpServletRequest request, HttpServletResponse response)
+            throws IOException {
+        response.setContentType("text/xml");
+        PrintWriter out = response.getWriter();
+        // Send a forbidden presence
+        Presence presence = new Presence();
+        presence.setError(PacketError.Condition.forbidden);
+        String username = request.getParameter("username");
+        if (username != null) {
+            try {
+                presence.setFrom(XMPPServer.getInstance().createJID(username, null));
+            }
+            catch (Exception e) {}
+        }
+        String sender = request.getParameter("sender");
+        if (sender != null) {
+            try {
+                presence.setTo(new JID(sender));
+            }
+            catch (Exception e) {}
+        }
+        out.println(presence.toXML());
+        out.flush();
     }
 }