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.text.ParseException;
020import java.util.Date;
021import java.util.logging.Level;
022import java.util.logging.Logger;
023
024import org.jivesoftware.smack.provider.IQProvider;
025
026import org.jivesoftware.smackx.si.packet.StreamInitiation;
027import org.jivesoftware.smackx.si.packet.StreamInitiation.File;
028import org.jivesoftware.smackx.xdata.packet.DataForm;
029import org.jivesoftware.smackx.xdata.provider.DataFormProvider;
030
031import org.jxmpp.util.XmppDateTime;
032import org.xmlpull.v1.XmlPullParser;
033
034/**
035 * The StreamInitiationProvider parses StreamInitiation packets.
036 *
037 * @author Alexander Wenckus
038 *
039 */
040public class StreamInitiationProvider extends IQProvider<StreamInitiation> {
041    private static final Logger LOGGER = Logger.getLogger(StreamInitiationProvider.class.getName());
042
043    @Override
044    public StreamInitiation parse(XmlPullParser parser, int initialDepth)
045                    throws Exception {
046        boolean done = false;
047
048        // si
049        String id = parser.getAttributeValue("", "id");
050        String mimeType = parser.getAttributeValue("", "mime-type");
051
052        StreamInitiation initiation = new StreamInitiation();
053
054        // file
055        String name = null;
056        String size = null;
057        String hash = null;
058        String date = null;
059        String desc = null;
060        boolean isRanged = false;
061
062        // feature
063        DataForm form = null;
064        DataFormProvider dataFormProvider = new DataFormProvider();
065
066        int eventType;
067        String elementName;
068        String namespace;
069        while (!done) {
070            eventType = parser.next();
071            elementName = parser.getName();
072            namespace = parser.getNamespace();
073            if (eventType == XmlPullParser.START_TAG) {
074                if (elementName.equals("file")) {
075                    name = parser.getAttributeValue("", "name");
076                    size = parser.getAttributeValue("", "size");
077                    hash = parser.getAttributeValue("", "hash");
078                    date = parser.getAttributeValue("", "date");
079                } else if (elementName.equals("desc")) {
080                    desc = parser.nextText();
081                } else if (elementName.equals("range")) {
082                    isRanged = true;
083                } else if (elementName.equals("x")
084                        && namespace.equals("jabber:x:data")) {
085                    form = dataFormProvider.parse(parser);
086                }
087            } else if (eventType == XmlPullParser.END_TAG) {
088                if (elementName.equals("si")) {
089                    done = true;
090                } else if (elementName.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}