com.adspore.splat.xep0060.models.PresenceAccess.java Source code

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Here is the source code for com.adspore.splat.xep0060.models.PresenceAccess.java

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/**
 * $RCSfile: $
 * $Revision: $
 * $Date: $
 *
 * Copyright (C) 2005-2008 Jive Software. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.adspore.splat.xep0060.models;

import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.QName;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xmpp.packet.JID;
import org.xmpp.packet.PacketError;

import com.adspore.splat.xep0060.Node;

/**
 * Anyone with a presence subscription of both or from may subscribe and retrieve items.
 *
 * @author Matt Tucker
 */
public class PresenceAccess extends AccessModel {

    private static final Logger Log = LoggerFactory.getLogger(PresenceAccess.class);

    PresenceAccess() {
    }

    @Override
    public boolean canSubscribe(Node node, JID owner, JID subscriber) {
        // Let node owners and sysadmins always subcribe to the node
        if (node.isAdmin(owner)) {
            return true;
        }
        //XMPPServer server = XMPPServer.getInstance();

        for (JID nodeOwner : node.getOwners()) {
            // Give access to the owner of the roster :)
            if (nodeOwner.equals(owner.toBareJID())) {
                return true;
            }

            //           // Check that the node owner is a local user
            //           if (server.isLocal(nodeOwner)) {
            //               try {
            //                   Roster roster = server.getRosterManager().getRoster(nodeOwner.getNode());
            //                   RosterItem item = roster.getRosterItem(owner);
            //                   // Check that the subscriber is subscribe to the node owner's presence
            //                   return item != null && (RosterItem.SUB_BOTH == item.getSubStatus() ||
            //                           RosterItem.SUB_FROM == item.getSubStatus());
            //               }
            //               catch (UserNotFoundException e) {
            //                  // Do nothing
            //               }
            //           }
            //           else {
            //               // Owner of the node is a remote user. This should never happen.
            //               Log.warn("Node with access model Presence has a remote user as owner: " +
            //                       node.getNodeID());
            //           }

        }
        //        return false;
        return true;
    }

    @Override
    public boolean canAccessItems(Node node, JID owner, JID subscriber) {
        return canSubscribe(node, owner, subscriber);
    }

    @Override
    public String getName() {
        return "presence";
    }

    @Override
    public PacketError.Condition getSubsriptionError() {
        return PacketError.Condition.not_authorized;
    }

    @Override
    public Element getSubsriptionErrorDetail() {
        return DocumentHelper.createElement(
                QName.get("presence-subscription-required", "http://jabber.org/protocol/pubsub#errors"));
    }

    @Override
    public boolean isAuthorizationRequired() {
        return false;
    }
}