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Smack/smack-extensions/src/main/java/org/jivesoftware/smackx/jingle/transport/jingle_ibb/JingleIBBTransport.java
2017-07-27 15:18:18 +02:00

139 lines
5.1 KiB
Java

/**
*
* Copyright 2017 Paul Schaub
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.jingle.transport.jingle_ibb;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.Stanza;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smackx.bytestreams.BytestreamSession;
import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamListener;
import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager;
import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamRequest;
import org.jivesoftware.smackx.jingle.element.JingleContentTransportInfoElement;
import org.jivesoftware.smackx.jingle.element.JingleElement;
import org.jivesoftware.smackx.jingle.components.JingleSession;
import org.jivesoftware.smackx.jingle.components.JingleTransport;
import org.jivesoftware.smackx.jingle.components.JingleTransportCandidate;
import org.jivesoftware.smackx.jingle.transport.jingle_ibb.element.JingleIBBTransportElement;
/**
* Jingle InBandBytestream Transport component.
*/
public class JingleIBBTransport extends JingleTransport<JingleIBBTransportElement> {
public static final String NAMESPACE_V1 = "urn:xmpp:jingle:transports:ibb:1";
public static final String NAMESPACE = NAMESPACE_V1;
private final String streamId;
private final Short blockSize;
public JingleIBBTransport(String streamId, Short blockSize) {
this.streamId = streamId;
this.blockSize = blockSize;
}
public JingleIBBTransport() {
this(StringUtils.randomString(10), JingleIBBTransportElement.DEFAULT_BLOCK_SIZE);
}
public Short getBlockSize() {
return blockSize;
}
public String getSid() {
return streamId;
}
@Override
public JingleIBBTransportElement getElement() {
return new JingleIBBTransportElement(streamId, blockSize);
}
@Override
public String getNamespace() {
return NAMESPACE;
}
@Override
public void establishIncomingBytestreamSession(final XMPPConnection connection) {
final JingleSession session = getParent().getParent();
final InBandBytestreamManager inBandBytestreamManager = InBandBytestreamManager.getByteStreamManager(connection);
InBandBytestreamListener bytestreamListener = new InBandBytestreamListener() {
@Override
public void incomingBytestreamRequest(InBandBytestreamRequest request) {
if (request.getFrom().asFullJidIfPossible().equals(session.getPeer())
&& request.getSessionID().equals(getSid())) {
BytestreamSession bytestreamSession;
inBandBytestreamManager.removeIncomingBytestreamListener(this);
try {
bytestreamSession = request.accept();
} catch (InterruptedException | SmackException e) {
getParent().onTransportFailed(e);
return;
}
JingleIBBTransport.this.bytestreamSession = bytestreamSession;
getParent().onTransportReady();
}
}
};
InBandBytestreamManager.getByteStreamManager(connection)
.addIncomingBytestreamListener(bytestreamListener);
}
@Override
public void establishOutgoingBytestreamSession(XMPPConnection connection) {
JingleSession session = getParent().getParent();
InBandBytestreamManager inBandBytestreamManager = InBandBytestreamManager.getByteStreamManager(connection);
inBandBytestreamManager.setDefaultBlockSize(blockSize);
try {
JingleIBBTransport.this.bytestreamSession = inBandBytestreamManager.establishSession(session.getPeer(), getSid());
getParent().onTransportReady();
} catch (SmackException.NoResponseException | XMPPException.XMPPErrorException | InterruptedException | SmackException.NotConnectedException e) {
getParent().onTransportFailed(e);
}
}
@Override
public void addCandidate(JingleTransportCandidate<?> candidate) {
// Sorry, we don't want any candidates.
}
@Override
public void handleTransportInfo(JingleContentTransportInfoElement info, JingleElement wrapping) {
// Nothing to do.
}
@Override
protected boolean isNonFatalException(Exception exception) {
return false;
}
@Override
protected void handleStanza(Stanza stanza) throws SmackException.NotConnectedException, InterruptedException {
}
}