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.packet.IQ;
025import org.jivesoftware.smack.provider.IQProvider;
026import org.jivesoftware.smack.util.XmppDateTime;
027import org.jivesoftware.smackx.si.packet.StreamInitiation;
028import org.jivesoftware.smackx.si.packet.StreamInitiation.File;
029import org.jivesoftware.smackx.xdata.packet.DataForm;
030import org.jivesoftware.smackx.xdata.provider.DataFormProvider;
031import org.xmlpull.v1.XmlPullParser;
032
033/**
034 * The StreamInitiationProvider parses StreamInitiation packets.
035 * 
036 * @author Alexander Wenckus
037 * 
038 */
039public class StreamInitiationProvider implements IQProvider {
040    private static final Logger LOGGER = Logger.getLogger(StreamInitiationProvider.class.getName());
041    
042        public IQ parseIQ(final XmlPullParser parser) throws Exception {
043                boolean done = false;
044
045                // si
046                String id = parser.getAttributeValue("", "id");
047                String mimeType = parser.getAttributeValue("", "mime-type");
048
049                StreamInitiation initiation = new StreamInitiation();
050
051                // file
052                String name = null;
053                String size = null;
054                String hash = null;
055                String date = null;
056                String desc = null;
057                boolean isRanged = false;
058
059                // feature
060                DataForm form = null;
061                DataFormProvider dataFormProvider = new DataFormProvider();
062
063                int eventType;
064                String elementName;
065                String namespace;
066                while (!done) {
067                        eventType = parser.next();
068                        elementName = parser.getName();
069                        namespace = parser.getNamespace();
070                        if (eventType == XmlPullParser.START_TAG) {
071                                if (elementName.equals("file")) {
072                                        name = parser.getAttributeValue("", "name");
073                                        size = parser.getAttributeValue("", "size");
074                                        hash = parser.getAttributeValue("", "hash");
075                                        date = parser.getAttributeValue("", "date");
076                                } else if (elementName.equals("desc")) {
077                                        desc = parser.nextText();
078                                } else if (elementName.equals("range")) {
079                                        isRanged = true;
080                                } else if (elementName.equals("x")
081                                                && namespace.equals("jabber:x:data")) {
082                                        form = (DataForm) dataFormProvider.parseExtension(parser);
083                                }
084                        } else if (eventType == XmlPullParser.END_TAG) {
085                                if (elementName.equals("si")) {
086                                        done = true;
087                                } else if (elementName.equals("file")) {
088                    long fileSize = 0;
089                    if(size != null && size.trim().length() !=0){
090                        try {
091                            fileSize = Long.parseLong(size);
092                        }
093                        catch (NumberFormatException e) {
094                            LOGGER.log(Level.SEVERE, "Failed to parse file size from " + fileSize, e);
095                        }
096                    }
097                    
098                    Date fileDate = new Date();
099                    if (date != null) {
100                        try {
101                            fileDate = XmppDateTime.parseDate(date);
102                        } catch (ParseException e) {
103                            // couldn't parse date, use current date-time
104                        }
105                    }
106                    
107                    File file = new File(name, fileSize);
108                                        file.setHash(hash);
109                                        file.setDate(fileDate);
110                                        file.setDesc(desc);
111                                        file.setRanged(isRanged);
112                                        initiation.setFile(file);
113                                }
114                        }
115                }
116
117                initiation.setSessionID(id);
118                initiation.setMimeType(mimeType);
119
120                initiation.setFeatureNegotiationForm(form);
121
122                return initiation;
123        }
124
125}