129 lines
5.0 KiB
Java
129 lines
5.0 KiB
Java
/**
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*
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* Copyright 2017 Paul Schaub
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.jingle_filetransfer.provider;
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import static org.xmlpull.v1.XmlPullParser.END_TAG;
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import static org.xmlpull.v1.XmlPullParser.START_TAG;
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import java.io.IOException;
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import java.text.ParseException;
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import java.util.ArrayList;
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import org.jivesoftware.smack.parsing.SmackParsingException;
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import org.jivesoftware.smackx.hashes.element.HashElement;
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import org.jivesoftware.smackx.hashes.provider.HashElementProvider;
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import org.jivesoftware.smackx.jingle.element.JingleContentDescriptionChildElement;
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import org.jivesoftware.smackx.jingle.provider.JingleContentDescriptionProvider;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransfer;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChild;
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import org.jivesoftware.smackx.jingle_filetransfer.element.Range;
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import org.jxmpp.util.XmppDateTime;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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/**
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* Provider for JingleContentDescriptionFileTransfer elements.
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*/
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public class JingleFileTransferProvider
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extends JingleContentDescriptionProvider<JingleFileTransfer> {
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@Override
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public JingleFileTransfer parse(XmlPullParser parser, int initialDepth) throws XmlPullParserException, IOException, SmackParsingException {
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ArrayList<JingleContentDescriptionChildElement> payloads = new ArrayList<>();
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boolean inRange = false;
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JingleFileTransferChild.Builder builder = JingleFileTransferChild.getBuilder();
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HashElement inRangeHash = null;
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int offset = 0;
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int length = -1;
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while (true) {
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int tag = parser.nextTag();
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String elem = parser.getName();
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if (tag == START_TAG) {
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switch (elem) {
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case JingleFileTransferChild.ELEM_DATE:
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try {
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builder.setDate(XmppDateTime.parseXEP0082Date(parser.nextText()));
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} catch (ParseException e) {
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throw new SmackParsingException.SmackTextParseException(e);
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}
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break;
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case JingleFileTransferChild.ELEM_DESC:
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builder.setDescription(parser.nextText());
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break;
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case JingleFileTransferChild.ELEM_MEDIA_TYPE:
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builder.setMediaType(parser.nextText());
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break;
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case JingleFileTransferChild.ELEM_NAME:
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builder.setName(parser.nextText());
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break;
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case JingleFileTransferChild.ELEM_SIZE:
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builder.setSize(Integer.parseInt(parser.nextText()));
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break;
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case Range.ELEMENT:
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inRange = true;
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String offsetString = parser.getAttributeValue(null, Range.ATTR_OFFSET);
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String lengthString = parser.getAttributeValue(null, Range.ATTR_LENGTH);
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offset = (offsetString != null ? Integer.parseInt(offsetString) : 0);
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length = (lengthString != null ? Integer.parseInt(lengthString) : -1);
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if (parser.isEmptyElementTag()) {
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inRange = false;
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builder.setRange(new Range(offset, length));
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}
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break;
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case HashElement.ELEMENT:
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if (inRange) {
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inRangeHash = new HashElementProvider().parse(parser);
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} else {
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builder.setHash(new HashElementProvider().parse(parser));
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}
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break;
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}
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} else if (tag == END_TAG) {
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switch (elem) {
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case Range.ELEMENT:
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inRange = false;
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builder.setRange(new Range(offset, length, inRangeHash));
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inRangeHash = null;
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break;
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case JingleFileTransferChild.ELEMENT:
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payloads.add(builder.build());
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builder = JingleFileTransferChild.getBuilder();
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break;
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case JingleFileTransfer.ELEMENT:
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return new JingleFileTransfer(payloads);
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}
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}
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}
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}
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}
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