| /** |
| * $RCSfile$ |
| * $Revision$ |
| * $Date$ |
| * |
| * Copyright 2003-2007 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.smackx.provider; |
| |
| import org.jivesoftware.smack.packet.PacketExtension; |
| import org.jivesoftware.smack.provider.PacketExtensionProvider; |
| import org.jivesoftware.smack.util.StringUtils; |
| import org.jivesoftware.smackx.packet.XHTMLExtension; |
| import org.xmlpull.v1.XmlPullParser; |
| |
| /** |
| * The XHTMLExtensionProvider parses XHTML packets. |
| * |
| * @author Gaston Dombiak |
| */ |
| public class XHTMLExtensionProvider implements PacketExtensionProvider { |
| |
| /** |
| * Creates a new XHTMLExtensionProvider. |
| * ProviderManager requires that every PacketExtensionProvider has a public, no-argument constructor |
| */ |
| public XHTMLExtensionProvider() { |
| } |
| |
| /** |
| * Parses a XHTMLExtension packet (extension sub-packet). |
| * |
| * @param parser the XML parser, positioned at the starting element of the extension. |
| * @return a PacketExtension. |
| * @throws Exception if a parsing error occurs. |
| */ |
| public PacketExtension parseExtension(XmlPullParser parser) |
| throws Exception { |
| XHTMLExtension xhtmlExtension = new XHTMLExtension(); |
| boolean done = false; |
| StringBuilder buffer = new StringBuilder(); |
| int startDepth = parser.getDepth(); |
| int depth = parser.getDepth(); |
| String lastTag = ""; |
| while (!done) { |
| int eventType = parser.next(); |
| if (eventType == XmlPullParser.START_TAG) { |
| if (parser.getName().equals("body")) { |
| buffer = new StringBuilder(); |
| depth = parser.getDepth(); |
| } |
| lastTag = parser.getText(); |
| buffer.append(parser.getText()); |
| } else if (eventType == XmlPullParser.TEXT) { |
| if (buffer != null) { |
| // We need to return valid XML so any inner text needs to be re-escaped |
| buffer.append(StringUtils.escapeForXML(parser.getText())); |
| } |
| } else if (eventType == XmlPullParser.END_TAG) { |
| if (parser.getName().equals("body") && parser.getDepth() <= depth) { |
| buffer.append(parser.getText()); |
| xhtmlExtension.addBody(buffer.toString()); |
| } |
| else if (parser.getName().equals(xhtmlExtension.getElementName()) |
| && parser.getDepth() <= startDepth) { |
| done = true; |
| } |
| else { |
| // This is a check for tags that are both a start and end tag like <br/> |
| // So that they aren't doubled |
| if(lastTag == null || !lastTag.equals(parser.getText())) { |
| buffer.append(parser.getText()); |
| } |
| } |
| } |
| } |
| |
| return xhtmlExtension; |
| } |
| |
| } |