1d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen/** 2d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $RCSfile$ 3d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $Revision$ 4d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * $Date$ 5d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 6d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Copyright 2003-2007 Jive Software. 7d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 8d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); 9d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * you may not use this file except in compliance with the License. 10d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * You may obtain a copy of the License at 11d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 12d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * http://www.apache.org/licenses/LICENSE-2.0 13d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 14d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Unless required by applicable law or agreed to in writing, software 15d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * distributed under the License is distributed on an "AS IS" BASIS, 16d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * See the License for the specific language governing permissions and 18d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * limitations under the License. 19d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */ 20d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 21d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenpackage org.jivesoftware.smack.filter; 22d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 23d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenimport org.jivesoftware.smack.packet.Packet; 24d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenimport org.jivesoftware.smack.util.StringUtils; 25d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 26d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen/** 27d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Filter for packets where the "from" field exactly matches a specified JID. If the specified 28d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * address is a bare JID then the filter will match any address whose bare JID matches the 29d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * specified JID. But if the specified address is a full JID then the filter will only match 30d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * if the sender of the packet matches the specified resource. 31d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 32d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * @author Gaston Dombiak 33d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */ 34d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chenpublic class FromMatchesFilter implements PacketFilter { 35d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 36d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen private String address; 37d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen /** 38d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Flag that indicates if the checking will be done against bare JID addresses or full JIDs. 39d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */ 40d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen private boolean matchBareJID = false; 41d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 42d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen /** 43d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * Creates a "from" filter using the "from" field part. If the specified address is a bare JID 44d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * then the filter will match any address whose bare JID matches the specified JID. But if the 45d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * specified address is a full JID then the filter will only match if the sender of the packet 46d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * matches the specified resource. 47d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * 48d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen * @param address the from field value the packet must match. Could be a full or bare JID. 49d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen */ 50d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen public FromMatchesFilter(String address) { 51d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen if (address == null) { 52d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen throw new IllegalArgumentException("Parameter cannot be null."); 53d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 54d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen this.address = address.toLowerCase(); 55d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen matchBareJID = "".equals(StringUtils.parseResource(address)); 56d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 57d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 58d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen public boolean accept(Packet packet) { 59d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen if (packet.getFrom() == null) { 60d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen return false; 61d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 62d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen else if (matchBareJID) { 63d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen // Check if the bare JID of the sender of the packet matches the specified JID 64d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen return packet.getFrom().toLowerCase().startsWith(address); 65d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 66d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen else { 67d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen // Check if the full JID of the sender of the packet matches the specified JID 68d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen return address.equals(packet.getFrom().toLowerCase()); 69d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 70d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 71d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen 72d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen public String toString() { 73d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen return "FromMatchesFilter: " + address; 74d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen } 75d7955ce24d294fb2014c59d11fca184471056f44Shuyi Chen} 76