diff --git a/source/org/jivesoftware/smack/filter/FromMatchesFilter.java b/source/org/jivesoftware/smack/filter/FromMatchesFilter.java new file mode 100644 index 000000000..1562d5cac --- /dev/null +++ b/source/org/jivesoftware/smack/filter/FromMatchesFilter.java @@ -0,0 +1,71 @@ +/** + * $RCSfile$ + * $Revision$ + * $Date$ + * + * Copyright 2003-2004 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 org.jivesoftware.smack.filter; + +import org.jivesoftware.smack.packet.Packet; +import org.jivesoftware.smack.util.StringUtils; + +/** + * Filter for packets where the "from" field exactly matches a specified JID. If the specified + * address is a bare JID then the filter will match any address whose bare JID matches the + * specified JID. But if the specified address is a full JID then the filter will only match + * if the sender of the packet matches the specified resource. + * + * @author Gaston Dombiak + */ +public class FromMatchesFilter implements PacketFilter { + + private String address; + /** + * Flag that indicates if the checking will be done against bare JID addresses or full JIDs. + */ + private boolean matchBareJID = false; + + /** + * Creates a "from" filter using the "from" field part. If the specified address is a bare JID + * then the filter will match any address whose bare JID matches the specified JID. But if the + * specified address is a full JID then the filter will only match if the sender of the packet + * matches the specified resource. + * + * @param address the from field value the packet must match. Could be a full or bare JID. + */ + public FromMatchesFilter(String address) { + if (address == null) { + throw new IllegalArgumentException("Parameter cannot be null."); + } + this.address = address.toLowerCase(); + matchBareJID = "".equals(StringUtils.parseResource(address)); + } + + public boolean accept(Packet packet) { + if (packet.getFrom() == null) { + return false; + } + else if (matchBareJID) { + // Check if the bare JID of the sender of the packet matches the specified JID + return packet.getFrom().toLowerCase().startsWith(address); + } + else { + // Check if the full JID of the sender of the packet matches the specified JID + return address.equals(packet.getFrom().toLowerCase()); + } + } +}