Initial version. JM-437

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@2981 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/messenger/handler/IQSharedGroupHandler.java

+package org.jivesoftware.messenger.handler;
+
+import org.dom4j.Element;
+import org.jivesoftware.messenger.IQHandlerInfo;
+import org.jivesoftware.messenger.XMPPServer;
+import org.jivesoftware.messenger.auth.UnauthorizedException;
+import org.jivesoftware.messenger.group.Group;
+import org.jivesoftware.messenger.roster.RosterManager;
+import org.jivesoftware.messenger.user.UserManager;
+import org.jivesoftware.messenger.user.UserNotFoundException;
+import org.xmpp.packet.IQ;
+import org.xmpp.packet.PacketError;
+
+import java.util.Collection;
+
+/**
+ * Handler of IQ packets whose child element is "sharedgroup" with namespace
+ * "http://www.jivesoftware.org/protocol/sharedgroup". This handler will return the list of
+ * shared groups where the user sending the request belongs.
+ *
+ * @author Gaston Dombiak
+ */
+public class IQSharedGroupHandler extends IQHandler {
+
+    private IQHandlerInfo info;
+    private String serverName;
+    private UserManager userManager;
+    private RosterManager rosterManager;
+
+    public IQSharedGroupHandler() {
+        super("Shared Groups Handler");
+        info = new IQHandlerInfo("sharedgroup", "http://www.jivesoftware.org/protocol/sharedgroup");
+    }
+
+    public IQ handleIQ(IQ packet) throws UnauthorizedException {
+        IQ result = IQ.createResultIQ(packet);
+        String username = packet.getFrom().getNode();
+        if (!serverName.equals(packet.getFrom().getDomain()) || username == null) {
+            // Users of remote servers are not allowed to get their "shared groups". Users of
+            // remote servers cannot have shared groups in this server.
+            // Besides, anonymous users do not belong to shared groups so answer an error
+            result.setChildElement(packet.getChildElement().createCopy());
+            result.setError(PacketError.Condition.not_allowed);
+            return result;
+        }
+
+        try {
+            Collection<Group> groups = rosterManager.getSharedGroups(userManager.getUser(username));
+            Element sharedGroups = result.setChildElement("sharedgroup",
+                    "http://www.jivesoftware.org/protocol/sharedgroup");
+            for (Group sharedGroup : groups) {
+                String displayName = sharedGroup.getProperties().get("sharedRoster.displayName");
+                if (displayName != null) {
+                    sharedGroups.addElement("group").setText(displayName);
+                }
+            }
+        }
+        catch (UserNotFoundException e) {
+            // User not found return an error. This case should never happen.
+            result.setChildElement(packet.getChildElement().createCopy());
+            result.setError(PacketError.Condition.not_allowed);
+        }
+        return result;
+    }
+
+    public IQHandlerInfo getInfo() {
+        return info;
+    }
+
+    public void initialize(XMPPServer server) {
+        super.initialize(server);
+        serverName = server.getServerInfo().getName();
+        userManager = server.getUserManager();
+        rosterManager = server.getRosterManager();
+    }
+}