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