mirror of
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147 lines
5.7 KiB
Java
147 lines
5.7 KiB
Java
/**
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*
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* Copyright 2017 Paul Schaub, 2019 Florian Schmaus
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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 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.packet.XmlEnvironment;
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import org.jivesoftware.smack.parsing.SmackParsingException;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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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.JingleContentDescription;
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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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/**
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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, XmlEnvironment xmlEnvironment) throws XmlPullParserException, IOException, SmackParsingException {
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ArrayList<JingleContentDescriptionChildElement> payloads = new ArrayList<>();
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JingleFileTransferChild.Builder builder = JingleFileTransferChild.getBuilder();
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String elementName;
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while (true) {
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XmlPullParser.TagEvent tag = parser.nextTag();
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switch (tag) {
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case START_ELEMENT:
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elementName = parser.getName();
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switch (elementName) {
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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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Range range = parseRangeElement(parser);
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builder.setRange(range);
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break;
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case HashElement.ELEMENT:
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HashElement hashElement = HashElementProvider.INSTANCE.parse(parser);
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builder.setHash(hashElement);
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break;
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}
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break;
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case END_ELEMENT:
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elementName = parser.getName();
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switch (elementName) {
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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 JingleContentDescription.ELEMENT:
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return new JingleFileTransfer(payloads);
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}
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break;
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}
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}
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}
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public static Range parseRangeElement(XmlPullParser parser) throws IOException, XmlPullParserException, SmackParsingException {
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final int initialDepth = parser.getDepth();
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final Integer offset = ParserUtils.getIntegerAttribute(parser, Range.ATTR_OFFSET);
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final Integer length = ParserUtils.getIntegerAttribute(parser, Range.ATTR_LENGTH);
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HashElement hashElement = null;
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outerloop: while (true) {
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String element;
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XmlPullParser.Event event = parser.next();
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switch (event) {
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case START_ELEMENT:
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element = parser.getName();
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switch (element) {
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case HashElement.ELEMENT:
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hashElement = HashElementProvider.INSTANCE.parse(parser);
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break;
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}
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break;
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case END_ELEMENT:
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element = parser.getName();
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if (element.equals(Range.ELEMENT) && parser.getDepth() == initialDepth) {
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break outerloop;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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return new Range(offset, length, hashElement);
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}
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}
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