001/*
002 *
003 * Copyright 2003-2006 Jive Software.
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.si.provider;
018
019import java.io.IOException;
020import java.text.ParseException;
021import java.util.Date;
022import java.util.logging.Level;
023import java.util.logging.Logger;
024
025import org.jivesoftware.smack.packet.IqData;
026import org.jivesoftware.smack.packet.XmlEnvironment;
027import org.jivesoftware.smack.parsing.SmackParsingException;
028import org.jivesoftware.smack.provider.IqProvider;
029import org.jivesoftware.smack.xml.XmlPullParser;
030import org.jivesoftware.smack.xml.XmlPullParserException;
031
032import org.jivesoftware.smackx.si.packet.StreamInitiation;
033import org.jivesoftware.smackx.si.packet.StreamInitiation.File;
034import org.jivesoftware.smackx.xdata.packet.DataForm;
035import org.jivesoftware.smackx.xdata.provider.DataFormProvider;
036
037import org.jxmpp.JxmppContext;
038import org.jxmpp.util.XmppDateTime;
039
040/**
041 * The StreamInitiationProvider parses StreamInitiation packets.
042 *
043 * @author Alexander Wenckus
044 *
045 */
046public class StreamInitiationProvider extends IqProvider<StreamInitiation> {
047    private static final Logger LOGGER = Logger.getLogger(StreamInitiationProvider.class.getName());
048
049    @SuppressWarnings("JavaUtilDate")
050    @Override
051    public StreamInitiation parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment, JxmppContext jxmppContext) throws XmlPullParserException, IOException, SmackParsingException {
052        // si
053        String id = parser.getAttributeValue("", "id");
054        String mimeType = parser.getAttributeValue("", "mime-type");
055
056        StreamInitiation initiation = new StreamInitiation();
057
058        // file
059        String name = null;
060        String size = null;
061        String hash = null;
062        String date = null;
063        String desc = null;
064        boolean isRanged = false;
065
066        // feature
067        DataForm form = null;
068        DataFormProvider dataFormProvider = new DataFormProvider();
069
070        outerloop: while (true) {
071            XmlPullParser.Event eventType = parser.next();
072            if (eventType == XmlPullParser.Event.START_ELEMENT) {
073                String elementName = parser.getName();
074                String namespace = parser.getNamespace();
075                if (elementName.equals("file")) {
076                    name = parser.getAttributeValue("", "name");
077                    size = parser.getAttributeValue("", "size");
078                    hash = parser.getAttributeValue("", "hash");
079                    date = parser.getAttributeValue("", "date");
080                } else if (elementName.equals("desc")) {
081                    desc = parser.nextText();
082                } else if (elementName.equals("range")) {
083                    isRanged = true;
084                } else if (elementName.equals("x")
085                        && namespace.equals("jabber:x:data")) {
086                    form = dataFormProvider.parse(parser);
087                }
088            } else if (eventType == XmlPullParser.Event.END_ELEMENT) {
089                if (parser.getDepth() == initialDepth) {
090                    break outerloop;
091                }
092                if (parser.getName().equals("file")) {
093                    long fileSize = 0;
094                    if (size != null && size.trim().length() != 0) {
095                        try {
096                            fileSize = Long.parseLong(size);
097                        }
098                        catch (NumberFormatException e) {
099                            LOGGER.log(Level.SEVERE, "Failed to parse file size from " + fileSize, e);
100                        }
101                    }
102
103                    Date fileDate = new Date();
104                    if (date != null) {
105                        try {
106                            fileDate = XmppDateTime.parseDate(date);
107                        } catch (ParseException e) {
108                            // couldn't parse date, use current date-time
109                        }
110                    }
111
112                    File file = new File(name, fileSize);
113                    file.setHash(hash);
114                    file.setDate(fileDate);
115                    file.setDesc(desc);
116                    file.setRanged(isRanged);
117                    initiation.setFile(file);
118                }
119            }
120        }
121
122        initiation.setSessionID(id);
123        initiation.setMimeType(mimeType);
124
125        initiation.setFeatureNegotiationForm(form);
126
127        return initiation;
128    }
129
130}