318 lines
13 KiB
Java
318 lines
13 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;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.WeakHashMap;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.Manager;
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import org.jivesoftware.smack.SmackException;
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import org.jivesoftware.smack.XMPPConnection;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smack.util.StringUtils;
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import org.jivesoftware.smackx.bytestreams.BytestreamSession;
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import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
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import org.jivesoftware.smackx.hashes.HashManager;
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import org.jivesoftware.smackx.hashes.element.HashElement;
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import org.jivesoftware.smackx.jingle.AbstractJingleTransportManager;
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import org.jivesoftware.smackx.jingle.JingleContentProviderManager;
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import org.jivesoftware.smackx.jingle.JingleHandler;
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import org.jivesoftware.smackx.jingle.JingleManager;
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import org.jivesoftware.smackx.jingle.JingleTransportEstablishedCallback;
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import org.jivesoftware.smackx.jingle.JingleTransportHandler;
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import org.jivesoftware.smackx.jingle.JingleTransportManager;
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import org.jivesoftware.smackx.jingle.element.Jingle;
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import org.jivesoftware.smackx.jingle.element.JingleAction;
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import org.jivesoftware.smackx.jingle.element.JingleContent;
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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.element.JingleContentTransport;
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import org.jivesoftware.smackx.jingle.element.JingleReason;
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import org.jivesoftware.smackx.jingle.exception.JingleTransportFailureException;
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import org.jivesoftware.smackx.jingle_filetransfer.callback.JingleFileTransferCallback;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChild;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferContentDescription;
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import org.jivesoftware.smackx.jingle_filetransfer.handler.InitiatorOutgoingFileTransferInitiated;
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import org.jivesoftware.smackx.jingle_filetransfer.handler.ResponderIncomingFileTransferAccepted;
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import org.jivesoftware.smackx.jingle_filetransfer.listener.IncomingJingleFileTransferListener;
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import org.jivesoftware.smackx.jingle_filetransfer.provider.JingleFileTransferContentDescriptionProvider;
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import org.jivesoftware.smackx.jingle_s5b.JingleS5BTransportManager;
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import org.jxmpp.jid.FullJid;
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/**
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* Manager for Jingle File Transfers.
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*
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* @author Paul Schaub
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*/
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public final class JingleFileTransferManager extends Manager implements JingleHandler {
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private static final Logger LOGGER = Logger.getLogger(JingleFileTransferManager.class.getName());
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public static final String NAMESPACE_V5 = "urn:xmpp:jingle:apps:file-transfer:5";
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private final JingleManager jingleManager;
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private static final WeakHashMap<XMPPConnection, JingleFileTransferManager> INSTANCES = new WeakHashMap<>();
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private final HashSet<IncomingJingleFileTransferListener> incomingJingleFileTransferListeners = new HashSet<>();
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/**
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* Private constructor. This registers a JingleContentDescriptionFileTransferProvider with the
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* JingleContentProviderManager.
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* @param connection connection
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*/
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private JingleFileTransferManager(XMPPConnection connection) {
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super(connection);
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ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
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sdm.addFeature(NAMESPACE_V5);
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jingleManager = JingleManager.getInstanceFor(connection);
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jingleManager.registerDescriptionHandler(
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NAMESPACE_V5, this);
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JingleContentProviderManager.addJingleContentDescriptionProvider(
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NAMESPACE_V5, new JingleFileTransferContentDescriptionProvider());
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//JingleIBBTransportManager.getInstanceFor(connection);
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JingleS5BTransportManager.getInstanceFor(connection);
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}
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/**
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* Return a new instance of the FileTransferManager for the given connection.
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*
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* @param connection XMPPConnection we wish to get a FileTransferManager for.
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* @return manager instance.
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*/
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public static JingleFileTransferManager getInstanceFor(XMPPConnection connection) {
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JingleFileTransferManager manager = INSTANCES.get(connection);
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if (manager == null) {
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manager = new JingleFileTransferManager(connection);
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INSTANCES.put(connection, manager);
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}
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return manager;
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}
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public void addIncomingFileTransferListener(IncomingJingleFileTransferListener listener) {
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incomingJingleFileTransferListeners.add(listener);
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}
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public void removeIncomingFileTransferListener(IncomingJingleFileTransferListener listener) {
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incomingJingleFileTransferListeners.remove(listener);
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}
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void notifyIncomingFileTransferListeners(Jingle jingle, JingleFileTransferCallback callback) {
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for (IncomingJingleFileTransferListener l : incomingJingleFileTransferListeners) {
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l.onIncomingJingleFileTransfer(jingle, callback);
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}
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}
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/**
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* QnD method.
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* @param file
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*/
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public void sendFile(final File file, final FullJid recipient) throws Exception {
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AbstractJingleTransportManager<?> tm = JingleTransportManager.getInstanceFor(connection())
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.getAvailableJingleBytestreamManagers().iterator().next();
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JingleFileTransferChild.Builder b = JingleFileTransferChild.getBuilder();
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b.setFile(file);
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b.setDescription("File");
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b.setMediaType("application/octet-stream");
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JingleFileTransferContentDescription description = new JingleFileTransferContentDescription(
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Collections.singletonList((JingleContentDescriptionChildElement) b.build()));
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JingleContentTransport transport = tm.createJingleContentTransport(recipient);
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Jingle initiate = sessionInitiate(recipient, description, transport);
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JingleManager.FullJidAndSessionId fullJidAndSessionId =
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new JingleManager.FullJidAndSessionId(recipient, initiate.getSessionId());
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InitiatorOutgoingFileTransferInitiated sessionHandler =
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new InitiatorOutgoingFileTransferInitiated(this, fullJidAndSessionId, file);
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jingleManager.registerJingleSessionHandler(recipient, initiate.getSessionId(), sessionHandler);
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JingleTransportHandler<?> transportHandler = tm.createJingleTransportHandler(sessionHandler);
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connection().sendStanza(initiate);
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transportHandler.establishOutgoingSession(initiate, new JingleTransportEstablishedCallback() {
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@Override
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public void onSessionEstablished(BytestreamSession bytestreamSession) {
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try {
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byte[] filebuf = new byte[(int) file.length()];
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HashElement hashElement = FileAndHashReader.readAndCalculateHash(file, filebuf, HashManager.ALGORITHM.SHA_256);
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bytestreamSession.getInputStream().read(filebuf);
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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bytestreamSession.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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@Override
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public void onSessionFailure(JingleTransportFailureException reason) {
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}
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});
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}
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public FullJid ourJid() {
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return connection().getUser();
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}
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@Override
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public IQ handleJingleSessionInitiate(final Jingle jingle) {
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if (jingle.getAction() != JingleAction.session_initiate) {
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//TODO tie-break?
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return null;
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}
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notifyIncomingFileTransferListeners(jingle, new JingleFileTransferCallback() {
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@Override
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public void acceptFileTransfer(final File target) throws Exception {
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connection().sendStanza(sessionAccept(jingle));
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ResponderIncomingFileTransferAccepted responded = new ResponderIncomingFileTransferAccepted(
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JingleFileTransferManager.this, jingle, target);
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jingleManager.registerJingleSessionHandler(jingle.getFrom().asFullJidIfPossible(), jingle.getSessionId(),
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responded);
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}
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@Override
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public void declineFileTransfer() throws SmackException.NotConnectedException, InterruptedException {
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connection().sendStanza(decline(jingle));
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}
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});
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return IQ.createResultIQ(jingle);
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}
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public Jingle sessionInitiate(FullJid recipient, JingleContentDescription contentDescription, JingleContentTransport transport) {
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Jingle.Builder jb = Jingle.getBuilder();
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jb.setSessionId(StringUtils.randomString(24))
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.setAction(JingleAction.session_initiate)
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.setInitiator(connection().getUser());
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JingleContent.Builder cb = JingleContent.getBuilder();
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cb.setDescription(contentDescription)
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.setName(StringUtils.randomString(24))
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.setCreator(JingleContent.Creator.initiator)
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.setSenders(JingleContent.Senders.initiator)
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.addTransport(transport);
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jb.addJingleContent(cb.build());
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Jingle jingle = jb.build();
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jingle.setFrom(connection().getUser());
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jingle.setTo(recipient);
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return jingle;
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}
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public Jingle sessionAccept(Jingle request) throws Exception {
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JingleContent content = request.getContents().get(0);
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Jingle.Builder jb = Jingle.getBuilder();
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jb.setSessionId(request.getSessionId())
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.setAction(JingleAction.session_accept)
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.setResponder(connection().getUser());
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JingleContent.Builder cb = JingleContent.getBuilder();
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cb.setSenders(content.getSenders())
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.setCreator(content.getCreator())
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.setName(content.getName())
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.setDescription(content.getDescription());
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AbstractJingleTransportManager<?> tm = JingleTransportManager.getInstanceFor(connection())
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.getJingleContentTransportManager(request);
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JingleContentTransport transport = tm.createJingleContentTransport(request);
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cb.addTransport(transport);
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jb.addJingleContent(cb.build());
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Jingle jingle = jb.build();
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jingle.setFrom(connection().getUser());
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jingle.setTo(request.getFrom());
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return jingle;
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}
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public Jingle decline(Jingle request) {
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Jingle.Builder jb = Jingle.getBuilder();
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jb.setResponder(connection().getUser())
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.setAction(JingleAction.session_terminate)
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.setReason(JingleReason.Reason.decline)
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.setSessionId(request.getSessionId());
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Jingle jingle = jb.build();
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jingle.setTo(request.getFrom());
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jingle.setFrom(connection().getUser());
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return jingle;
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}
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public void receiveFile(Jingle request, BytestreamSession session, File target) {
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JingleFileTransferChild file = (JingleFileTransferChild)
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request.getContents().get(0).getDescription().getJingleContentDescriptionChildren().get(0);
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InputStream inputStream = null;
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FileOutputStream outputStream = null;
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try {
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if (!target.exists()) {
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target.createNewFile();
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}
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inputStream = session.getInputStream();
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outputStream = new FileOutputStream(target);
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byte[] fileBuf = new byte[file.getSize()];
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byte[] buf = new byte[2048];
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int read = 0;
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while (read < fileBuf.length) {
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int r = inputStream.read(buf);
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if (r >= 0) {
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System.arraycopy(buf, 0, fileBuf, read, r);
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read += r;
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}
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}
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outputStream.write(fileBuf);
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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try {
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if (inputStream != null) {
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inputStream.close();
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}
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if (outputStream != null) {
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outputStream.close();
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}
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session.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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public XMPPConnection getConnection() {
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return connection();
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}
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}
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