146 lines
5.4 KiB
Java
146 lines
5.4 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.io.OutputStream;
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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.XMPPConnection;
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import org.jivesoftware.smackx.jingle.JingleInputStream;
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import org.jivesoftware.smackx.jingle.JingleSession;
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import org.jivesoftware.smackx.jingle.JingleTransportInputStreamCallback;
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import org.jivesoftware.smackx.jingle.element.Jingle;
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import org.jivesoftware.smackx.jingle_filetransfer.callback.IncomingJingleFileTransferCallback;
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import org.jivesoftware.smackx.jingle_filetransfer.element.JingleFileTransferChildElement;
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import org.jivesoftware.smackx.jingle_ibb.JingleInBandBytestreamTransportManager;
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import org.jxmpp.jid.FullJid;
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/**
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* Represent a jingle file transfer session.
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*/
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public class JingleFileTransferSession extends JingleSession {
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private static final Logger LOGGER = Logger.getLogger(JingleFileTransferSession.class.getName());
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private byte[] buffer;
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public JingleFileTransferSession(XMPPConnection connection, FullJid remote, FullJid initiator, FullJid responder, String sid) {
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super(connection, remote, initiator, responder, sid);
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}
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public JingleFileTransferSession(XMPPConnection connection, FullJid remote, FullJid initiator, FullJid responder) {
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super(connection, remote, initiator, responder);
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}
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public JingleFileTransferSession(XMPPConnection connection, Jingle initiate) {
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super(connection, initiate);
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}
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public void setBytes(byte[] bytes) {
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this.buffer = bytes;
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}
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public byte[] getBytes() {
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return buffer;
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}
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@Override
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public void onSessionInitiate(final Jingle jingle) {
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JingleFileTransferManager jfm = JingleFileTransferManager.getInstanceFor(connection);
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jfm.notifyIncomingFileTransferListeners(jingle, new IncomingJingleFileTransferCallback() {
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@Override
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public void acceptFileTransfer(final File target) throws SmackException.NotConnectedException, InterruptedException {
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connection.sendStanza(accept(jingle));
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JingleInBandBytestreamTransportManager.getInstanceFor(connection).acceptInputStream(jingle, new JingleTransportInputStreamCallback() {
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@Override
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public void onInputStream(JingleInputStream inputStream) {
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receive(inputStream, target);
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}
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});
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}
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@Override
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public void cancelFileTransfer() throws SmackException.NotConnectedException, InterruptedException {
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connection.sendStanza(terminateFormally());
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}
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});
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}
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@Override
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public void onAccept(Jingle jingle) {
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this.contents = jingle.getContents();
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JingleInBandBytestreamTransportManager jibb = JingleInBandBytestreamTransportManager.getInstanceFor(connection);
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OutputStream outputStream = jibb.createOutputStream(jingle);
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if (outputStream == null) {
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LOGGER.log(Level.SEVERE, "OutputStream is null!");
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return;
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}
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send(outputStream);
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}
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void send(OutputStream outputStream) {
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try {
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outputStream.write(buffer);
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} catch (IOException e) {
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LOGGER.log(Level.SEVERE, "Caught exception while writing to output stream: " + e, e);
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} finally {
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try {
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outputStream.close();
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} catch (IOException e) {
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LOGGER.log(Level.SEVERE, "Could not close output stream: " + e, e);
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}
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}
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}
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void receive(JingleInputStream in, File file) {
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JingleFileTransferChildElement payload = (JingleFileTransferChildElement) contents.get(0).getDescription().getJingleContentDescriptionChildren().get(0);
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InputStream inputStream = in.getInputStream();
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byte[] fileBuffer = new byte[payload.getSize()];
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byte[] packetBuffer = new byte[in.getBlockSize()];
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try {
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FileOutputStream outputStream = new FileOutputStream(file);
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int read = 0, count = 0;
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while (read > -1 && read < fileBuffer.length) {
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int r = inputStream.read(packetBuffer);
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read += r;
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System.arraycopy(packetBuffer, 0, fileBuffer, packetBuffer.length * count, r);
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count++;
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}
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inputStream.close();
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outputStream.write(fileBuffer);
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outputStream.close();
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} catch (IOException e) {
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LOGGER.log(Level.SEVERE, "Caught exception while receiving and writing file: " + e, e);
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}
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}
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@Override
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public void onTerminate(Jingle jingle) {
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}
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}
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