001/**
002 *
003 * Copyright 2018 Paul Schaub.
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.ox.provider;
018
019import static org.xmlpull.v1.XmlPullParser.START_TAG;
020
021import java.nio.charset.Charset;
022import java.util.Date;
023
024import org.jivesoftware.smack.provider.ExtensionElementProvider;
025import org.jivesoftware.smackx.ox.element.PubkeyElement;
026
027import org.jxmpp.util.XmppDateTime;
028import org.xmlpull.v1.XmlPullParser;
029
030/**
031 * {@link ExtensionElementProvider} implementation for the {@link PubkeyElement}.
032 */
033public class PubkeyElementProvider extends ExtensionElementProvider<PubkeyElement> {
034
035    public static final PubkeyElementProvider TEST_INSTANCE = new PubkeyElementProvider();
036
037    @Override
038    public PubkeyElement parse(XmlPullParser parser, int initialDepth) throws Exception {
039        String dateString = parser.getAttributeValue(null, PubkeyElement.ATTR_DATE);
040        Date date = dateString != null ? XmppDateTime.parseXEP0082Date(dateString) : null;
041        while (true) {
042            int tag = parser.next();
043            String name = parser.getName();
044            if (tag == START_TAG) {
045                switch (name) {
046                    case PubkeyElement.PubkeyDataElement.ELEMENT:
047                        String data = parser.nextText();
048                        if (data != null) {
049                            byte[] bytes = data.getBytes(Charset.forName("UTF-8"));
050                            return new PubkeyElement(new PubkeyElement.PubkeyDataElement(bytes), date);
051                        }
052                }
053            }
054        }
055    }
056}