122 lines
4.6 KiB
Java
122 lines
4.6 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.handler;
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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.lang.ref.WeakReference;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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import org.jivesoftware.smack.SmackException;
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import org.jivesoftware.smack.XMPPException;
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import org.jivesoftware.smack.packet.IQ;
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import org.jivesoftware.smackx.bytestreams.BytestreamListener;
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import org.jivesoftware.smackx.bytestreams.BytestreamRequest;
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import org.jivesoftware.smackx.bytestreams.BytestreamSession;
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import org.jivesoftware.smackx.bytestreams.ibb.InBandBytestreamManager;
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import org.jivesoftware.smackx.jingle.JingleSessionHandler;
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import org.jivesoftware.smackx.jingle.element.Jingle;
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import org.jivesoftware.smackx.jingle_filetransfer.JingleFileTransferManager;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChild;
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import org.jxmpp.jid.FullJid;
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/**
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* This handler represents the state of the responders jingle session after the responder sent session-accept.
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*/
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public class ResponderIncomingFileTransferAccepted implements JingleSessionHandler, BytestreamListener {
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private static final Logger LOGGER = Logger.getLogger(ResponderIncomingFileTransferAccepted.class.getName());
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private final WeakReference<JingleFileTransferManager> manager;
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private final File target;
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private final int size;
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private final FullJid initiator;
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private final String sessionId;
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public ResponderIncomingFileTransferAccepted(JingleFileTransferManager manager, Jingle initiate, File target) {
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this.manager = new WeakReference<>(manager);
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this.target = target;
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this.size = ((JingleFileTransferChild) initiate.getContents().get(0).getDescription()
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.getJingleContentDescriptionChildren().get(0)).getSize();
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this.initiator = initiate.getInitiator();
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this.sessionId = initiate.getSid();
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}
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@Override
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public void incomingBytestreamRequest(BytestreamRequest request) {
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if (!request.getFrom().asFullJidIfPossible().equals(initiator) || !sessionId.equals(request.getSessionID())) {
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LOGGER.log(Level.INFO, "Not our session.");
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return;
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}
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BytestreamSession session;
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try {
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session = request.accept();
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} catch (InterruptedException | XMPPException.XMPPErrorException | SmackException e) {
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LOGGER.log(Level.SEVERE, "Exception while accepting session: " + e, e);
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return;
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}
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byte[] fileBuf = new byte[size];
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byte[] buf = new byte[4096];
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InputStream inputStream = null;
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FileOutputStream fileOutputStream = 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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fileOutputStream = new FileOutputStream(target);
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inputStream = session.getInputStream();
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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 != -1) {
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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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fileOutputStream.write(fileBuf);
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} catch (IOException e) {
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LOGGER.log(Level.SEVERE, "Caught IOException while receiving files: " + e, e);
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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 (fileOutputStream != null) {
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fileOutputStream.close();
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}
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} catch (IOException e) {
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LOGGER.log(Level.SEVERE, "Caught Exception while closing streams: " + e, e);
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}
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InBandBytestreamManager.getByteStreamManager(manager.get().getConnection()).removeIncomingBytestreamListener(this);
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}
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}
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@Override
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public IQ handleJingleSessionRequest(Jingle jingle, String sessionId) {
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return null;
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}
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}
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