/** @param aProperties the updated properties. */
@SuppressWarnings("rawtypes")
final void setProperties(final Dictionary aProperties) {
final Map<String, String> newProps = new HashMap<String, String>();
Enumeration keys = aProperties.keys();
while (keys.hasMoreElements()) {
final String key = (String) keys.nextElement();
if (!KNOWN_KEYS.contains(key) && !IGNORED_KEYS.contains(key)) {
LOG.log(Level.WARNING, "Unknown/unsupported profile key: " + key);
continue;
}
final String value = aProperties.get(key).toString();
newProps.put(key, value.trim());
}
// Verify whether all known keys are defined...
final List<String> checkedKeys = new ArrayList<String>(KNOWN_KEYS);
checkedKeys.removeAll(newProps.keySet());
if (!checkedKeys.isEmpty()) {
throw new IllegalArgumentException(
"Profile settings not complete! Missing keys are: " + checkedKeys.toString());
}
this.properties.putAll(newProps);
LOG.log(
Level.INFO,
"New device profile settings applied for {1} ({0}) ...", //
new Object[] {getType(), getDescription()});
}
private void handleException(Exception e) {
if (INTERRUPTED_EXCEPTION_TYPES.contains(e.getClass())) {
LOG.info("Changes feed was interrupted");
} else {
LOG.error("Caught exception while listening to changes feed:", e);
}
}
/** Implements notification in order to track socket state. */
@Override
public synchronized void onSctpNotification(SctpSocket socket, SctpNotification notification) {
if (logger.isDebugEnabled()) {
logger.debug("socket=" + socket + "; notification=" + notification);
}
switch (notification.sn_type) {
case SctpNotification.SCTP_ASSOC_CHANGE:
SctpNotification.AssociationChange assocChange =
(SctpNotification.AssociationChange) notification;
switch (assocChange.state) {
case SctpNotification.AssociationChange.SCTP_COMM_UP:
if (!assocIsUp) {
boolean wasReady = isReady();
assocIsUp = true;
if (isReady() && !wasReady) notifySctpConnectionReady();
}
break;
case SctpNotification.AssociationChange.SCTP_COMM_LOST:
case SctpNotification.AssociationChange.SCTP_SHUTDOWN_COMP:
case SctpNotification.AssociationChange.SCTP_CANT_STR_ASSOC:
try {
closeStream();
} catch (IOException e) {
logger.error("Error closing SCTP socket", e);
}
break;
}
break;
}
}
/**
* Makes an <tt>RTCPREMBPacket</tt> that provides receiver feedback to the endpoint from which we
* receive.
*
* @return an <tt>RTCPREMBPacket</tt> that provides receiver feedback to the endpoint from which
* we receive.
*/
private RTCPREMBPacket makeRTCPREMBPacket() {
// TODO we should only make REMBs if REMB support has been advertised.
// Destination
RemoteBitrateEstimator remoteBitrateEstimator =
((VideoMediaStream) getStream()).getRemoteBitrateEstimator();
Collection<Integer> ssrcs = remoteBitrateEstimator.getSsrcs();
// TODO(gp) intersect with SSRCs from signaled simulcast layers
// NOTE(gp) The Google Congestion Control algorithm (sender side)
// doesn't seem to care about the SSRCs in the dest field.
long[] dest = new long[ssrcs.size()];
int i = 0;
for (Integer ssrc : ssrcs) dest[i++] = ssrc & 0xFFFFFFFFL;
// Exp & mantissa
long bitrate = remoteBitrateEstimator.getLatestEstimate();
if (bitrate == -1) return null;
if (logger.isDebugEnabled()) logger.debug("Estimated bitrate: " + bitrate);
// Create and return the packet.
// We use the stream's local source ID (SSRC) as the SSRC of packet
// sender.
long streamSSRC = getLocalSSRC();
return new RTCPREMBPacket(streamSSRC, /* mediaSSRC */ 0L, bitrate, dest);
}
private void handleResquest(String s) {
Logger.info("@ClientMediator.handleResquest id=" + _id + " :s=" + s);
if (s.indexOf("sync") > -1) {
tellClient("sync " + s.split(" ")[1], 0);
} else if (s.indexOf("get-status") > -1) {
Integer[] ts = (Integer[]) tankStateProxy().getTanks();
Logger.debug("ClientMediator.handleResquest: ts.len=" + ts.length);
for (int i = 0; i < ts.length; i++) {
ClientMediator cm =
(ClientMediator) appFacade().retrieveMediator(Const.CLIENT_MEDIATOR + ts[i].intValue());
TankState t = cm.getState();
if (t == null || cm.destroyd) continue;
tellClient(
"create tank "
+ t.tankID
+ " "
+ t.tankName
+ " 0 0 "
+ t.life
+ " 500 "
+ t.x
+ " "
+ t.y
+ " "
+ cm.getTankAngle()
+ " "
+ cm.getGunAngle(),
0);
}
} else if (s.indexOf("born") > -1) {
if (_state == null) Arena.addReq(_id, s, null);
} else if (s.indexOf("move-to") > -1) {
if (_state != null) {
Arena.addReq(_id, s, getState());
}
} else if (s.indexOf("rotate-to") > -1) { // rotate gun
if (_state != null) {
Arena.addReq(_id, s, getState());
}
} else if (s.indexOf("shoot") > -1) {
if (_state != null) {
Arena.addReq(_id, s, getState());
}
} else if (s.indexOf("talk") > -1) {
if (_state != null) s = "talk " + _state.tankName + " say: " + s.substring(5);
this.sendNotification(Const.BROAD_CAST, s, null);
}
}
/** {@inheritDoc} */
@Override
public RawPacket transform(RawPacket pkt) {
if (pkt == null) {
return pkt;
}
RTCPCompoundPacket inPacket;
try {
inPacket =
(RTCPCompoundPacket)
parser.parse(pkt.getBuffer(), pkt.getOffset(), pkt.getLength());
} catch (BadFormatException e) {
logger.warn("Failed to terminate an RTCP packet. " + "Dropping packet.");
return null;
}
// Update our RTCP stats map (timestamps). This operation is
// read-only.
remoteClockEstimator.apply(inPacket);
cnameRegistry.update(inPacket);
// Remove SRs and RRs from the RTCP packet.
pkt = feedbackGateway.gateway(inPacket);
return pkt;
}
public void stop() {
_thread.stop();
try {
_socket.close();
} catch (Exception e) {
Logger.error("@ClientMediator.stop error");
}
// kill tank
}
/**
* Sends acknowledgment for open channel request on given SCTP stream ID.
*
* @param sid SCTP stream identifier to be used for sending ack.
*/
private void sendOpenChannelAck(int sid) throws IOException {
// Send ACK
byte[] ack = MSG_CHANNEL_ACK_BYTES;
int sendAck = sctpSocket.send(ack, true, sid, WEB_RTC_PPID_CTRL);
if (sendAck != ack.length) {
logger.error("Failed to send open channel confirmation");
}
}
/**
* Iterate through all the <tt>ReceiveStream</tt>s that this <tt>MediaStream</tt> has and make
* <tt>RTCPReportBlock</tt>s for all of them.
*
* @param time
* @return
*/
private RTCPReportBlock[] makeRTCPReportBlocks(long time) {
MediaStream stream = getStream();
// State validation.
if (stream == null) {
logger.warn("stream is null.");
return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
}
StreamRTPManager streamRTPManager = stream.getStreamRTPManager();
if (streamRTPManager == null) {
logger.warn("streamRTPManager is null.");
return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
}
Collection<ReceiveStream> receiveStreams = streamRTPManager.getReceiveStreams();
if (receiveStreams == null || receiveStreams.size() == 0) {
logger.info("There are no receive streams to build report " + "blocks for.");
return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
}
SSRCCache cache = streamRTPManager.getSSRCCache();
if (cache == null) {
logger.info("cache is null.");
return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
}
// Create the return object.
Collection<RTCPReportBlock> rtcpReportBlocks = new ArrayList<RTCPReportBlock>();
// Populate the return object.
for (ReceiveStream receiveStream : receiveStreams) {
// Dig into the guts of FMJ and get the stats for the current
// receiveStream.
SSRCInfo info = cache.cache.get((int) receiveStream.getSSRC());
if (!info.ours && info.sender) {
RTCPReportBlock rtcpReportBlock = info.makeReceiverReport(time);
rtcpReportBlocks.add(rtcpReportBlock);
}
}
return rtcpReportBlocks.toArray(new RTCPReportBlock[rtcpReportBlocks.size()]);
}
/**
* Computes and returns the hash of the specified <tt>capsString</tt> using the specified
* <tt>hashAlgorithm</tt>.
*
* @param hashAlgorithm the name of the algorithm to be used to generate the hash
* @param capsString the capabilities string that we'd like to compute a hash for.
* @return the hash of <tt>capsString</tt> computed by the specified <tt>hashAlgorithm</tt> or
* <tt>null</tt> if generating the hash has failed
*/
private static String capsToHash(String hashAlgorithm, String capsString) {
try {
MessageDigest md = MessageDigest.getInstance(hashAlgorithm);
byte[] digest = md.digest(capsString.getBytes());
return Base64.encodeBytes(digest);
} catch (NoSuchAlgorithmException nsae) {
logger.error("Unsupported XEP-0115: Entity Capabilities hash algorithm: " + hashAlgorithm);
return null;
}
}
public void toberun() {
if (_writer == null || _reader == null) {
Logger.error("@ClientMediator.toberun: _writer or _reader null");
return;
}
String s;
while (true) {
s = null;
try {
s = _reader.readLine();
} catch (Exception e) {
Logger.error("@ClientMediator.toberun: _read error, excep is " + e.toString());
break;
}
if (s != null && s.length() > 0) {
handleResquest(new String(s));
}
}
Arena.addReq(_id, Const.LOSE_CONNECTION, null);
}
/**
* {@inheritDoc}
*
* <p>SCTP input data callback.
*/
@Override
public void onSctpPacket(
byte[] data, int sid, int ssn, int tsn, long ppid, int context, int flags) {
if (ppid == WEB_RTC_PPID_CTRL) {
// Channel control PPID
try {
onCtrlPacket(data, sid);
} catch (IOException e) {
logger.error("IOException when processing ctrl packet", e);
}
} else if (ppid == WEB_RTC_PPID_STRING || ppid == WEB_RTC_PPID_BIN) {
WebRtcDataStream channel;
synchronized (this) {
channel = channels.get(sid);
}
if (channel == null) {
logger.error("No channel found for sid: " + sid);
return;
}
if (ppid == WEB_RTC_PPID_STRING) {
// WebRTC String
String str;
String charsetName = "UTF-8";
try {
str = new String(data, charsetName);
} catch (UnsupportedEncodingException uee) {
logger.error("Unsupported charset encoding/name " + charsetName, uee);
str = null;
}
channel.onStringMsg(str);
} else {
// WebRTC Binary
channel.onBinaryMsg(data);
}
} else {
logger.warn("Got message on unsupported PPID: " + ppid);
}
}
public static void load(Collection<FileDesc> files, Path root, int blocSize, Pattern pattern)
throws IOException {
root = root.toAbsolutePath().normalize();
Visitor visitor = new Visitor(root, blocSize, pattern);
Files.walkFileTree(root, visitor);
for (Future<FileDesc> future : visitor.futures()) {
try {
files.add(future.get());
} catch (Exception e) {
log.error("", e);
}
}
}
@Override
public void run() {
byte[] buf = new byte[100];
try {
int len;
while ((len = in.read(buf)) > 0) {
String output = new String(buf, 0, len);
Thread t = Thread.currentThread();
System.out.println(
"thread " + t.getName() + " " + t.getId() + ", read " + len + " bytes: " + output);
}
} catch (IOException e) {
logger.log(Level.SEVERE, "Failed to read", e);
} finally {
try {
in.close();
} catch (IOException e) {
logger.log(Level.SEVERE, "Failed to close", e);
}
}
}
@Override
public void grantModerator(String nickname) {
MockRoomMember member = findMember(nickname);
if (member == null) {
logger.error("Member not found for nickname: " + nickname);
return;
}
if (ChatRoomMemberRole.MODERATOR.compareTo(member.getRole()) >= 0) {
// No action required
return;
}
ChatRoomMemberRole oldRole = member.getRole();
member.setRole(ChatRoomMemberRole.MODERATOR);
fireMemberRoleEvent(member, oldRole);
}
private <TRequest, TResponse> Response<TResponse> executeAllParallel(
ResponseCommand<TRequest, TResponse> responseCommand, boolean includeLocal) {
Collection<Callable<Response<TResponse>>> commandExecutors = new ArrayList<>();
if (includeLocal) {
for (Membership.Member machine : membershipService.getMembershipList().getMemberList()) {
commandExecutors.add(createResponseExecutor(machine, responseCommand));
}
} else {
for (Membership.Member machine :
membershipService.getMembershipListNoLocal().getMemberList()) {
commandExecutors.add(createResponseExecutor(machine, responseCommand));
}
}
List<Future<Response<TResponse>>> results;
try {
results = pool.invokeAll(commandExecutors);
Response<TResponse> response = null;
for (Future<Response<TResponse>> future : results) {
try {
if (response == null) response = future.get();
else {
Response<TResponse> tResponse = future.get();
if (tResponse != null) {
response.setResponseData(response.getResponseData().add(tResponse.getResponseData()));
response.setResponse(
responseCommand.add(response.getResponse(), tResponse.getResponse()));
}
}
} catch (ExecutionException e) {
logger.logLine(DefaultLogger.SEVERE, String.valueOf(e));
}
}
return response;
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
public void run() {
try {
String line = reader.readLine();
while (shouldRun && line != null) {
if (line.length() > 0) {
handleChange(line);
} else {
handleHeartbeat();
}
line = reader.readLine();
}
String reason = !shouldRun ? "Cancelled" : "EOF";
LOG.info("Changes feed stopped. Reason: " + reason);
} catch (Exception e) {
handleException(e);
} finally {
sendInterruptMarker();
httpResponse.abort();
try {
reader.close();
} catch (IOException e) {
}
}
}
/**
* Sets the simulcast layers for this receiver and fires an event about it.
*
* @param simulcastLayers the simulcast layers for this receiver.
*/
public void setSimulcastLayers(SimulcastLayer[] simulcastLayers) {
this.simulcastLayers = simulcastLayers;
if (logger.isInfoEnabled()) {
if (simulcastLayers == null) {
logInfo("Simulcast disabled.");
} else {
for (SimulcastLayer l : simulcastLayers) {
logInfo(l.getOrder() + ": " + l.getPrimarySSRC());
}
}
}
executorService.execute(
new Runnable() {
public void run() {
firePropertyChange(SIMULCAST_LAYERS_PNAME, null, null);
}
});
// TODO If simulcastLayers has changed, then simulcastLayerFrameHistory
// has very likely become irrelevant. In other words, clear
// simulcastLayerFrameHistory.
}
/**
* A depacketizer from VP8. See {@link "http://tools.ietf.org/html/draft-ietf-payload-vp8-11"}
*
* @author Boris Grozev
* @author George Politis
*/
public class DePacketizer extends AbstractCodec2 {
/**
* The <tt>Logger</tt> used by the <tt>DePacketizer</tt> class and its instances for logging
* output.
*/
private static final Logger logger = Logger.getLogger(DePacketizer.class);
/** Whether trace logging is enabled. */
private static final boolean TRACE = logger.isTraceEnabled();
/**
* A <tt>Comparator</tt> implementation for RTP sequence numbers. Compares <tt>a</tt> and
* <tt>b</tt>, taking into account the wrap at 2^16.
*
* <p>IMPORTANT: This is a valid <tt>Comparator</tt> implementation only if used for subsets of
* [0, 2^16) which don't span more than 2^15 elements.
*
* <p>E.g. it works for: [0, 2^15-1] and ([50000, 2^16) u [0, 10000]) Doesn't work for: [0, 2^15]
* and ([0, 2^15-1] u {2^16-1}) and [0, 2^16)
*
* <p>NOTE: An identical implementation for Integers can be found in the class SeqNumComparator.
* Sequence numbers are 16 bits and unsigned, so an Integer should be sufficient to hold that.
*/
private static final Comparator<? super Long> seqNumComparator =
new Comparator<Long>() {
@Override
public int compare(Long a, Long b) {
if (a.equals(b)) return 0;
else if (a > b) {
if (a - b < 32768) return 1;
else return -1;
} else // a < b
{
if (b - a < 32768) return -1;
else return 1;
}
}
};
/**
* Stores the RTP payloads (VP8 payload descriptor stripped) from RTP packets belonging to a
* single VP8 compressed frame.
*/
private SortedMap<Long, Container> data = new TreeMap<Long, Container>(seqNumComparator);
/** Stores unused <tt>Container</tt>'s. */
private Queue<Container> free = new ArrayBlockingQueue<Container>(100);
/**
* Stores the first (earliest) sequence number stored in <tt>data</tt>, or -1 if <tt>data</tt> is
* empty.
*/
private long firstSeq = -1;
/**
* Stores the last (latest) sequence number stored in <tt>data</tt>, or -1 if <tt>data</tt> is
* empty.
*/
private long lastSeq = -1;
/**
* Stores the value of the <tt>PictureID</tt> field for the VP8 compressed frame, parts of which
* are currently stored in <tt>data</tt>, or -1 if the <tt>PictureID</tt> field is not in use or
* <tt>data</tt> is empty.
*/
private int pictureId = -1;
/**
* Stores the RTP timestamp of the packets stored in <tt>data</tt>, or -1 if they don't have a
* timestamp set.
*/
private long timestamp = -1;
/** Whether we have stored any packets in <tt>data</tt>. Equivalent to <tt>data.isEmpty()</tt>. */
private boolean empty = true;
/**
* Whether we have stored in <tt>data</tt> the last RTP packet of the VP8 compressed frame, parts
* of which are currently stored in <tt>data</tt>.
*/
private boolean haveEnd = false;
/**
* Whether we have stored in <tt>data</tt> the first RTP packet of the VP8 compressed frame, parts
* of which are currently stored in <tt>data</tt>.
*/
private boolean haveStart = false;
/**
* Stores the sum of the lengths of the data stored in <tt>data</tt>, that is the total length of
* the VP8 compressed frame to be constructed.
*/
private int frameLength = 0;
/** The sequence number of the last RTP packet, which was included in the output. */
private long lastSentSeq = -1;
/** Initializes a new <tt>JNIEncoder</tt> instance. */
public DePacketizer() {
super(
"VP8 RTP DePacketizer",
VideoFormat.class,
new VideoFormat[] {new VideoFormat(Constants.VP8)});
inputFormats = new VideoFormat[] {new VideoFormat(Constants.VP8_RTP)};
}
/** {@inheritDoc} */
@Override
protected void doClose() {}
/** {@inheritDoc} */
@Override
protected void doOpen() throws ResourceUnavailableException {
if (logger.isInfoEnabled()) logger.info("Opened VP8 depacketizer");
}
/**
* Re-initializes the fields which store information about the currently held data. Empties
* <tt>data</tt>.
*/
private void reinit() {
firstSeq = lastSeq = timestamp = -1;
pictureId = -1;
empty = true;
haveEnd = haveStart = false;
frameLength = 0;
Iterator<Map.Entry<Long, Container>> it = data.entrySet().iterator();
Map.Entry<Long, Container> e;
while (it.hasNext()) {
e = it.next();
free.offer(e.getValue());
it.remove();
}
}
/**
* Checks whether the currently held VP8 compressed frame is complete (e.g all its packets are
* stored in <tt>data</tt>).
*
* @return <tt>true</tt> if the currently help VP8 compressed frame is complete, <tt>false</tt>
* otherwise.
*/
private boolean frameComplete() {
return haveStart && haveEnd && !haveMissing();
}
/**
* Checks whether there are packets with sequence numbers between <tt>firstSeq</tt> and
* <tt>lastSeq</tt> which are *not* stored in <tt>data</tt>.
*
* @return <tt>true</tt> if there are packets with sequence numbers between <tt>firstSeq</tt> and
* <tt>lastSeq</tt> which are *not* stored in <tt>data</tt>.
*/
private boolean haveMissing() {
Set<Long> seqs = data.keySet();
long s = firstSeq;
while (s != lastSeq) {
if (!seqs.contains(s)) return true;
s = (s + 1) % (1 << 16);
}
return false;
}
/** {@inheritDoc} */
@Override
protected int doProcess(Buffer inBuffer, Buffer outBuffer) {
byte[] inData = (byte[]) inBuffer.getData();
int inOffset = inBuffer.getOffset();
if (!VP8PayloadDescriptor.isValid(inData, inOffset)) {
logger.warn("Invalid RTP/VP8 packet discarded.");
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_FAILED; // XXX: FAILED or OK?
}
long inSeq = inBuffer.getSequenceNumber();
long inRtpTimestamp = inBuffer.getRtpTimeStamp();
int inPictureId = VP8PayloadDescriptor.getPictureId(inData, inOffset);
boolean inMarker = (inBuffer.getFlags() & Buffer.FLAG_RTP_MARKER) != 0;
boolean inIsStartOfFrame = VP8PayloadDescriptor.isStartOfFrame(inData, inOffset);
int inLength = inBuffer.getLength();
int inPdSize = VP8PayloadDescriptor.getSize(inData, inOffset);
int inPayloadLength = inLength - inPdSize;
if (empty && lastSentSeq != -1 && seqNumComparator.compare(inSeq, lastSentSeq) != 1) {
if (logger.isInfoEnabled()) logger.info("Discarding old packet (while empty) " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
}
if (!empty) {
// if the incoming packet has a different PictureID or timestamp
// than those of the current frame, then it belongs to a different
// frame.
if ((inPictureId != -1 && pictureId != -1 && inPictureId != pictureId)
| (timestamp != -1 && inRtpTimestamp != -1 && inRtpTimestamp != timestamp)) {
if (seqNumComparator.compare(inSeq, firstSeq) != 1) // inSeq <= firstSeq
{
// the packet belongs to a previous frame. discard it
if (logger.isInfoEnabled()) logger.info("Discarding old packet " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
} else // inSeq > firstSeq (and also presumably isSeq > lastSeq)
{
// the packet belongs to a subsequent frame (to the one
// currently being held). Drop the current frame.
if (logger.isInfoEnabled())
logger.info(
"Discarding saved packets on arrival of"
+ " a packet for a subsequent frame: "
+ inSeq);
// TODO: this would be the place to complain about the
// not-well-received PictureID by sending a RTCP SLI or NACK.
reinit();
}
}
}
// a whole frame in a single packet. avoid the extra copy to
// this.data and output it immediately.
if (empty && inMarker && inIsStartOfFrame) {
byte[] outData = validateByteArraySize(outBuffer, inPayloadLength, false);
System.arraycopy(inData, inOffset + inPdSize, outData, 0, inPayloadLength);
outBuffer.setOffset(0);
outBuffer.setLength(inPayloadLength);
outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());
if (TRACE) logger.trace("Out PictureID=" + inPictureId);
lastSentSeq = inSeq;
return BUFFER_PROCESSED_OK;
}
// add to this.data
Container container = free.poll();
if (container == null) container = new Container();
if (container.buf == null || container.buf.length < inPayloadLength)
container.buf = new byte[inPayloadLength];
if (data.get(inSeq) != null) {
if (logger.isInfoEnabled())
logger.info("(Probable) duplicate packet detected, discarding " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
}
System.arraycopy(inData, inOffset + inPdSize, container.buf, 0, inPayloadLength);
container.len = inPayloadLength;
data.put(inSeq, container);
// update fields
frameLength += inPayloadLength;
if (firstSeq == -1 || (seqNumComparator.compare(firstSeq, inSeq) == 1)) firstSeq = inSeq;
if (lastSeq == -1 || (seqNumComparator.compare(inSeq, lastSeq) == 1)) lastSeq = inSeq;
if (empty) {
// the first received packet for the current frame was just added
empty = false;
timestamp = inRtpTimestamp;
pictureId = inPictureId;
}
if (inMarker) haveEnd = true;
if (inIsStartOfFrame) haveStart = true;
// check if we have a full frame
if (frameComplete()) {
byte[] outData = validateByteArraySize(outBuffer, frameLength, false);
int ptr = 0;
Container b;
for (Map.Entry<Long, Container> entry : data.entrySet()) {
b = entry.getValue();
System.arraycopy(b.buf, 0, outData, ptr, b.len);
ptr += b.len;
}
outBuffer.setOffset(0);
outBuffer.setLength(frameLength);
outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());
if (TRACE) logger.trace("Out PictureID=" + inPictureId);
lastSentSeq = lastSeq;
// prepare for the next frame
reinit();
return BUFFER_PROCESSED_OK;
} else {
// frame not complete yet
outBuffer.setDiscard(true);
return OUTPUT_BUFFER_NOT_FILLED;
}
}
/**
* Returns true if the buffer contains a VP8 key frame at offset <tt>offset</tt>.
*
* @param buff the byte buffer to check
* @param off the offset in the byte buffer where the actual data starts
* @param len the length of the data in the byte buffer
* @return true if the buffer contains a VP8 key frame at offset <tt>offset</tt>.
*/
public static boolean isKeyFrame(byte[] buff, int off, int len) {
if (buff == null || buff.length < off + len || len < RawPacket.FIXED_HEADER_SIZE) {
return false;
}
// Check if this is the start of a VP8 partition in the payload
// descriptor.
if (!DePacketizer.VP8PayloadDescriptor.isValid(buff, off)) {
return false;
}
if (!DePacketizer.VP8PayloadDescriptor.isStartOfFrame(buff, off)) {
return false;
}
int szVP8PayloadDescriptor = DePacketizer.VP8PayloadDescriptor.getSize(buff, off);
return DePacketizer.VP8PayloadHeader.isKeyFrame(buff, off + szVP8PayloadDescriptor);
}
/**
* A class that represents the VP8 Payload Descriptor structure defined in {@link
* "http://tools.ietf.org/html/draft-ietf-payload-vp8-10"}
*/
public static class VP8PayloadDescriptor {
/** I bit from the X byte of the Payload Descriptor. */
private static final byte I_BIT = (byte) 0x80;
/** K bit from the X byte of the Payload Descriptor. */
private static final byte K_BIT = (byte) 0x10;
/** L bit from the X byte of the Payload Descriptor. */
private static final byte L_BIT = (byte) 0x40;
/** I bit from the I byte of the Payload Descriptor. */
private static final byte M_BIT = (byte) 0x80;
/** Maximum length of a VP8 Payload Descriptor. */
public static final int MAX_LENGTH = 6;
/** S bit from the first byte of the Payload Descriptor. */
private static final byte S_BIT = (byte) 0x10;
/** T bit from the X byte of the Payload Descriptor. */
private static final byte T_BIT = (byte) 0x20;
/** X bit from the first byte of the Payload Descriptor. */
private static final byte X_BIT = (byte) 0x80;
/**
* Gets the temporal layer index (TID), if that's set.
*
* @param buf the byte buffer that holds the VP8 packet.
* @param off the offset in the byte buffer where the VP8 packet starts.
* @param len the length of the VP8 packet.
* @return the temporal layer index (TID), if that's set, -1 otherwise.
*/
public static int getTemporalLayerIndex(byte[] buf, int off, int len) {
if (buf == null || buf.length < off + len || len < 2) {
return -1;
}
if ((buf[off] & X_BIT) == 0 || (buf[off + 1] & T_BIT) == 0) {
return -1;
}
int sz = getSize(buf, off);
if (buf.length < off + sz || sz < 1) {
return -1;
}
return (buf[off + sz - 1] & 0xc0) >> 6;
}
/**
* Returns a simple Payload Descriptor, with PartID = 0, the 'start of partition' bit set
* according to <tt>startOfPartition</tt>, and all other bits set to 0.
*
* @param startOfPartition whether to 'start of partition' bit should be set
* @return a simple Payload Descriptor, with PartID = 0, the 'start of partition' bit set
* according to <tt>startOfPartition</tt>, and all other bits set to 0.
*/
public static byte[] create(boolean startOfPartition) {
byte[] pd = new byte[1];
pd[0] = startOfPartition ? (byte) 0x10 : 0;
return pd;
}
/**
* The size in bytes of the Payload Descriptor at offset <tt>offset</tt> in <tt>input</tt>. The
* size is between 1 and 6.
*
* @param input input
* @param offset offset
* @return The size in bytes of the Payload Descriptor at offset <tt>offset</tt> in
* <tt>input</tt>, or -1 if the input is not a valid VP8 Payload Descriptor. The size is
* between 1 and 6.
*/
public static int getSize(byte[] input, int offset) {
if (!isValid(input, offset)) return -1;
if ((input[offset] & X_BIT) == 0) return 1;
int size = 2;
if ((input[offset + 1] & I_BIT) != 0) {
size++;
if ((input[offset + 2] & M_BIT) != 0) size++;
}
if ((input[offset + 1] & L_BIT) != 0) size++;
if ((input[offset + 1] & (T_BIT | K_BIT)) != 0) size++;
return size;
}
/**
* Gets the value of the PictureID field of a VP8 Payload Descriptor.
*
* @param input
* @param offset
* @return the value of the PictureID field of a VP8 Payload Descriptor, or -1 if the fields is
* not present.
*/
private static int getPictureId(byte[] input, int offset) {
if (!isValid(input, offset)) return -1;
if ((input[offset] & X_BIT) == 0 || (input[offset + 1] & I_BIT) == 0) return -1;
boolean isLong = (input[offset + 2] & M_BIT) != 0;
if (isLong) return (input[offset + 2] & 0x7f) << 8 | (input[offset + 3] & 0xff);
else return input[offset + 2] & 0x7f;
}
public static boolean isValid(byte[] input, int offset) {
return true;
}
/**
* Checks whether the '<tt>start of partition</tt>' bit is set in the VP8 Payload Descriptor at
* offset <tt>offset</tt> in <tt>input</tt>.
*
* @param input input
* @param offset offset
* @return <tt>true</tt> if the '<tt>start of partition</tt>' bit is set, <tt>false</tt>
* otherwise.
*/
public static boolean isStartOfPartition(byte[] input, int offset) {
return (input[offset] & S_BIT) != 0;
}
/**
* Returns <tt>true</tt> if both the '<tt>start of partition</tt>' bit is set and the
* <tt>PID</tt> fields has value 0 in the VP8 Payload Descriptor at offset <tt>offset</tt> in
* <tt>input</tt>.
*
* @param input
* @param offset
* @return <tt>true</tt> if both the '<tt>start of partition</tt>' bit is set and the
* <tt>PID</tt> fields has value 0 in the VP8 Payload Descriptor at offset <tt>offset</tt>
* in <tt>input</tt>.
*/
public static boolean isStartOfFrame(byte[] input, int offset) {
return isStartOfPartition(input, offset) && getPartitionId(input, offset) == 0;
}
/**
* Returns the value of the <tt>PID</tt> (partition ID) field of the VP8 Payload Descriptor at
* offset <tt>offset</tt> in <tt>input</tt>.
*
* @param input
* @param offset
* @return the value of the <tt>PID</tt> (partition ID) field of the VP8 Payload Descriptor at
* offset <tt>offset</tt> in <tt>input</tt>.
*/
public static int getPartitionId(byte[] input, int offset) {
return input[offset] & 0x07;
}
}
/**
* A class that represents the VP8 Payload Header structure defined in {@link
* "http://tools.ietf.org/html/draft-ietf-payload-vp8-10"}
*/
public static class VP8PayloadHeader {
/** S bit of the Payload Descriptor. */
private static final byte S_BIT = (byte) 0x01;
/**
* Returns true if the <tt>P</tt> (inverse key frame flag) field of the VP8 Payload Header at
* offset <tt>offset</tt> in <tt>input</tt> is 0.
*
* @return true if the <tt>P</tt> (inverse key frame flag) field of the VP8 Payload Header at
* offset <tt>offset</tt> in <tt>input</tt> is 0, false otherwise.
*/
public static boolean isKeyFrame(byte[] input, int offset) {
// When set to 0 the current frame is a key frame. When set to 1
// the current frame is an interframe. Defined in [RFC6386]
return (input[offset] & S_BIT) == 0;
}
}
/** A simple container for a <tt>byte[]</tt> and an integer. */
private static class Container {
/** This <tt>Container</tt>'s data. */
private byte[] buf;
/** Length used. */
private int len = 0;
}
}
/** {@inheritDoc} */
@Override
protected void doOpen() throws ResourceUnavailableException {
if (logger.isInfoEnabled()) logger.info("Opened VP8 depacketizer");
}
/** {@inheritDoc} */
@Override
protected int doProcess(Buffer inBuffer, Buffer outBuffer) {
byte[] inData = (byte[]) inBuffer.getData();
int inOffset = inBuffer.getOffset();
if (!VP8PayloadDescriptor.isValid(inData, inOffset)) {
logger.warn("Invalid RTP/VP8 packet discarded.");
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_FAILED; // XXX: FAILED or OK?
}
long inSeq = inBuffer.getSequenceNumber();
long inRtpTimestamp = inBuffer.getRtpTimeStamp();
int inPictureId = VP8PayloadDescriptor.getPictureId(inData, inOffset);
boolean inMarker = (inBuffer.getFlags() & Buffer.FLAG_RTP_MARKER) != 0;
boolean inIsStartOfFrame = VP8PayloadDescriptor.isStartOfFrame(inData, inOffset);
int inLength = inBuffer.getLength();
int inPdSize = VP8PayloadDescriptor.getSize(inData, inOffset);
int inPayloadLength = inLength - inPdSize;
if (empty && lastSentSeq != -1 && seqNumComparator.compare(inSeq, lastSentSeq) != 1) {
if (logger.isInfoEnabled()) logger.info("Discarding old packet (while empty) " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
}
if (!empty) {
// if the incoming packet has a different PictureID or timestamp
// than those of the current frame, then it belongs to a different
// frame.
if ((inPictureId != -1 && pictureId != -1 && inPictureId != pictureId)
| (timestamp != -1 && inRtpTimestamp != -1 && inRtpTimestamp != timestamp)) {
if (seqNumComparator.compare(inSeq, firstSeq) != 1) // inSeq <= firstSeq
{
// the packet belongs to a previous frame. discard it
if (logger.isInfoEnabled()) logger.info("Discarding old packet " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
} else // inSeq > firstSeq (and also presumably isSeq > lastSeq)
{
// the packet belongs to a subsequent frame (to the one
// currently being held). Drop the current frame.
if (logger.isInfoEnabled())
logger.info(
"Discarding saved packets on arrival of"
+ " a packet for a subsequent frame: "
+ inSeq);
// TODO: this would be the place to complain about the
// not-well-received PictureID by sending a RTCP SLI or NACK.
reinit();
}
}
}
// a whole frame in a single packet. avoid the extra copy to
// this.data and output it immediately.
if (empty && inMarker && inIsStartOfFrame) {
byte[] outData = validateByteArraySize(outBuffer, inPayloadLength, false);
System.arraycopy(inData, inOffset + inPdSize, outData, 0, inPayloadLength);
outBuffer.setOffset(0);
outBuffer.setLength(inPayloadLength);
outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());
if (TRACE) logger.trace("Out PictureID=" + inPictureId);
lastSentSeq = inSeq;
return BUFFER_PROCESSED_OK;
}
// add to this.data
Container container = free.poll();
if (container == null) container = new Container();
if (container.buf == null || container.buf.length < inPayloadLength)
container.buf = new byte[inPayloadLength];
if (data.get(inSeq) != null) {
if (logger.isInfoEnabled())
logger.info("(Probable) duplicate packet detected, discarding " + inSeq);
outBuffer.setDiscard(true);
return BUFFER_PROCESSED_OK;
}
System.arraycopy(inData, inOffset + inPdSize, container.buf, 0, inPayloadLength);
container.len = inPayloadLength;
data.put(inSeq, container);
// update fields
frameLength += inPayloadLength;
if (firstSeq == -1 || (seqNumComparator.compare(firstSeq, inSeq) == 1)) firstSeq = inSeq;
if (lastSeq == -1 || (seqNumComparator.compare(inSeq, lastSeq) == 1)) lastSeq = inSeq;
if (empty) {
// the first received packet for the current frame was just added
empty = false;
timestamp = inRtpTimestamp;
pictureId = inPictureId;
}
if (inMarker) haveEnd = true;
if (inIsStartOfFrame) haveStart = true;
// check if we have a full frame
if (frameComplete()) {
byte[] outData = validateByteArraySize(outBuffer, frameLength, false);
int ptr = 0;
Container b;
for (Map.Entry<Long, Container> entry : data.entrySet()) {
b = entry.getValue();
System.arraycopy(b.buf, 0, outData, ptr, b.len);
ptr += b.len;
}
outBuffer.setOffset(0);
outBuffer.setLength(frameLength);
outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());
if (TRACE) logger.trace("Out PictureID=" + inPictureId);
lastSentSeq = lastSeq;
// prepare for the next frame
reinit();
return BUFFER_PROCESSED_OK;
} else {
// frame not complete yet
outBuffer.setDiscard(true);
return OUTPUT_BUFFER_NOT_FILLED;
}
}
private void runOnDtlsTransport(StreamConnector connector) throws IOException {
DtlsControlImpl dtlsControl = (DtlsControlImpl) getTransportManager().getDtlsControl(this);
DtlsTransformEngine engine = dtlsControl.getTransformEngine();
final DtlsPacketTransformer transformer = (DtlsPacketTransformer) engine.getRTPTransformer();
byte[] receiveBuffer = new byte[SCTP_BUFFER_SIZE];
if (LOG_SCTP_PACKETS) {
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_LOCATION, System.getProperty("java.io.tmpdir"));
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_NAME, SctpConnection.class.getName());
}
synchronized (this) {
// FIXME local SCTP port is hardcoded in bridge offer SDP (Jitsi
// Meet)
sctpSocket = Sctp.createSocket(5000);
assocIsUp = false;
acceptedIncomingConnection = false;
}
// Implement output network link for SCTP stack on DTLS transport
sctpSocket.setLink(
new NetworkLink() {
@Override
public void onConnOut(SctpSocket s, byte[] packet) throws IOException {
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) debugId},
5000,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
PacketLoggingService.TransportName.UDP,
true,
packet);
}
// Send through DTLS transport
transformer.sendApplicationData(packet, 0, packet.length);
}
});
if (logger.isDebugEnabled()) {
logger.debug("Connecting SCTP to port: " + remoteSctpPort + " to " + getEndpoint().getID());
}
sctpSocket.setNotificationListener(this);
sctpSocket.listen();
// FIXME manage threads
threadPool.execute(
new Runnable() {
@Override
public void run() {
SctpSocket sctpSocket = null;
try {
// sctpSocket is set to null on close
sctpSocket = SctpConnection.this.sctpSocket;
while (sctpSocket != null) {
if (sctpSocket.accept()) {
acceptedIncomingConnection = true;
break;
}
Thread.sleep(100);
sctpSocket = SctpConnection.this.sctpSocket;
}
if (isReady()) {
notifySctpConnectionReady();
}
} catch (Exception e) {
logger.error("Error accepting SCTP connection", e);
}
if (sctpSocket == null && logger.isInfoEnabled()) {
logger.info(
"SctpConnection " + getID() + " closed" + " before SctpSocket accept()-ed.");
}
}
});
// Notify that from now on SCTP connection is considered functional
sctpSocket.setDataCallback(this);
// Setup iceSocket
DatagramSocket datagramSocket = connector.getDataSocket();
if (datagramSocket != null) {
this.iceSocket = new IceUdpSocketWrapper(datagramSocket);
} else {
this.iceSocket = new IceTcpSocketWrapper(connector.getDataTCPSocket());
}
DatagramPacket rcvPacket = new DatagramPacket(receiveBuffer, 0, receiveBuffer.length);
// Receive loop, breaks when SCTP socket is closed
try {
do {
iceSocket.receive(rcvPacket);
RawPacket raw =
new RawPacket(rcvPacket.getData(), rcvPacket.getOffset(), rcvPacket.getLength());
raw = transformer.reverseTransform(raw);
// Check for app data
if (raw == null) continue;
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
new byte[] {0, 0, 0, (byte) debugId},
5000,
PacketLoggingService.TransportName.UDP,
false,
raw.getBuffer(),
raw.getOffset(),
raw.getLength());
}
// Pass network packet to SCTP stack
sctpSocket.onConnIn(raw.getBuffer(), raw.getOffset(), raw.getLength());
} while (true);
} finally {
// Eventually, close the socket although it should happen from
// expire().
synchronized (this) {
assocIsUp = false;
acceptedIncomingConnection = false;
if (sctpSocket != null) {
sctpSocket.close();
sctpSocket = null;
}
}
}
}
public class ShowPreviewDialog extends SIPCommDialog
implements ActionListener, ChatLinkClickedListener {
/** Serial version UID. */
private static final long serialVersionUID = 1L;
/**
* The <tt>Logger</tt> used by the <tt>ShowPreviewDialog</tt> class and its instances for logging
* output.
*/
private static final Logger logger = Logger.getLogger(ShowPreviewDialog.class);
ConfigurationService cfg = GuiActivator.getConfigurationService();
/** The Ok button. */
private final JButton okButton;
/** The cancel button. */
private final JButton cancelButton;
/** Checkbox that indicates whether or not to show this dialog next time. */
private final JCheckBox enableReplacementProposal;
/** Checkbox that indicates whether or not to show previews automatically */
private final JCheckBox enableReplacement;
/** The <tt>ChatConversationPanel</tt> that this dialog is associated with. */
private final ChatConversationPanel chatPanel;
/** Mapping between messageID and the string representation of the chat message. */
private Map<String, String> msgIDToChatString = new ConcurrentHashMap<String, String>();
/**
* Mapping between the pair (messageID, link position) and the actual link in the string
* representation of the chat message.
*/
private Map<String, String> msgIDandPositionToLink = new ConcurrentHashMap<String, String>();
/**
* Mapping between link and replacement for this link that is acquired from it's corresponding
* <tt>ReplacementService</tt>.
*/
private Map<String, String> linkToReplacement = new ConcurrentHashMap<String, String>();
/** The id of the message that is currently associated with this dialog. */
private String currentMessageID = "";
/** The position of the link in the current message. */
private String currentLinkPosition = "";
/**
* Creates an instance of <tt>ShowPreviewDialog</tt>
*
* @param chatPanel The <tt>ChatConversationPanel</tt> that is associated with this dialog.
*/
ShowPreviewDialog(final ChatConversationPanel chatPanel) {
this.chatPanel = chatPanel;
this.setTitle(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_DIALOG_TITLE"));
okButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.OK"));
cancelButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.CANCEL"));
JPanel mainPanel = new TransparentPanel();
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// mainPanel.setPreferredSize(new Dimension(200, 150));
this.getContentPane().add(mainPanel);
JTextPane descriptionMsg = new JTextPane();
descriptionMsg.setEditable(false);
descriptionMsg.setOpaque(false);
descriptionMsg.setText(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_WARNING_DESCRIPTION"));
Icon warningIcon = null;
try {
warningIcon =
new ImageIcon(
ImageIO.read(
GuiActivator.getResources().getImageURL("service.gui.icons.WARNING_ICON")));
} catch (IOException e) {
logger.debug("failed to load the warning icon");
}
JLabel warningSign = new JLabel(warningIcon);
JPanel warningPanel = new TransparentPanel();
warningPanel.setLayout(new BoxLayout(warningPanel, BoxLayout.X_AXIS));
warningPanel.add(warningSign);
warningPanel.add(Box.createHorizontalStrut(10));
warningPanel.add(descriptionMsg);
enableReplacement =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_STATUS"));
enableReplacement.setOpaque(false);
enableReplacement.setSelected(cfg.getBoolean(ReplacementProperty.REPLACEMENT_ENABLE, true));
enableReplacementProposal =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_PROPOSAL"));
enableReplacementProposal.setOpaque(false);
JPanel checkBoxPanel = new TransparentPanel();
checkBoxPanel.setLayout(new BoxLayout(checkBoxPanel, BoxLayout.Y_AXIS));
checkBoxPanel.add(enableReplacement);
checkBoxPanel.add(enableReplacementProposal);
JPanel buttonsPanel = new TransparentPanel(new FlowLayout(FlowLayout.CENTER));
buttonsPanel.add(okButton);
buttonsPanel.add(cancelButton);
mainPanel.add(warningPanel);
mainPanel.add(Box.createVerticalStrut(10));
mainPanel.add(checkBoxPanel);
mainPanel.add(buttonsPanel);
okButton.addActionListener(this);
cancelButton.addActionListener(this);
this.setPreferredSize(new Dimension(390, 230));
}
@Override
public void actionPerformed(ActionEvent arg0) {
if (arg0.getSource().equals(okButton)) {
cfg.setProperty(ReplacementProperty.REPLACEMENT_ENABLE, enableReplacement.isSelected());
cfg.setProperty(
ReplacementProperty.REPLACEMENT_PROPOSAL, enableReplacementProposal.isSelected());
SwingWorker worker =
new SwingWorker() {
/**
* Called on the event dispatching thread (not on the worker thread) after the <code>
* construct</code> method has returned.
*/
@Override
public void finished() {
String newChatString = (String) get();
if (newChatString != null) {
try {
Element elem = chatPanel.document.getElement(currentMessageID);
chatPanel.document.setOuterHTML(elem, newChatString);
msgIDToChatString.put(currentMessageID, newChatString);
} catch (BadLocationException ex) {
logger.error("Could not replace chat message", ex);
} catch (IOException ex) {
logger.error("Could not replace chat message", ex);
}
}
}
@Override
protected Object construct() throws Exception {
String newChatString = msgIDToChatString.get(currentMessageID);
try {
String originalLink =
msgIDandPositionToLink.get(currentMessageID + "#" + currentLinkPosition);
String replacementLink = linkToReplacement.get(originalLink);
String replacement;
DirectImageReplacementService source =
GuiActivator.getDirectImageReplacementSource();
if (originalLink.equals(replacementLink)
&& (!source.isDirectImage(originalLink)
|| source.getImageSize(originalLink) == -1)) {
replacement = originalLink;
} else {
replacement =
"<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\""
+ replacementLink
+ "\" BORDER=\"0\" ALT=\""
+ originalLink
+ "\"></IMG>";
}
String old =
originalLink
+ "</A> <A href=\"jitsi://"
+ ShowPreviewDialog.this.getClass().getName()
+ "/SHOWPREVIEW?"
+ currentMessageID
+ "#"
+ currentLinkPosition
+ "\">"
+ GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW");
newChatString = newChatString.replace(old, replacement);
} catch (Exception ex) {
logger.error("Could not replace chat message", ex);
}
return newChatString;
}
};
worker.start();
this.setVisible(false);
} else if (arg0.getSource().equals(cancelButton)) {
this.setVisible(false);
}
}
@Override
public void chatLinkClicked(URI url) {
String action = url.getPath();
if (action.equals("/SHOWPREVIEW")) {
enableReplacement.setSelected(cfg.getBoolean(ReplacementProperty.REPLACEMENT_ENABLE, true));
enableReplacementProposal.setSelected(
cfg.getBoolean(ReplacementProperty.REPLACEMENT_PROPOSAL, true));
currentMessageID = url.getQuery();
currentLinkPosition = url.getFragment();
this.setVisible(true);
this.setLocationRelativeTo(chatPanel);
}
}
/**
* Returns mapping between messageID and the string representation of the chat message.
*
* @return mapping between messageID and chat string.
*/
Map<String, String> getMsgIDToChatString() {
return msgIDToChatString;
}
/**
* Returns mapping between the pair (messageID, link position) and the actual link in the string
* representation of the chat message.
*
* @return mapping between (messageID, linkPosition) and link.
*/
Map<String, String> getMsgIDandPositionToLink() {
return msgIDandPositionToLink;
}
/**
* Returns mapping between link and replacement for this link that was acquired from it's
* corresponding <tt>ReplacementService</tt>.
*
* @return mapping between link and it's corresponding replacement.
*/
Map<String, String> getLinkToReplacement() {
return linkToReplacement;
}
}
private void logError(String msg, Throwable e) {
msg = getSimulcastEngine().getVideoChannel().getEndpoint().getID() + ": " + msg;
logger.error(msg, e);
}
private void logInfo(String msg) {
if (logger.isInfoEnabled()) {
msg = getSimulcastEngine().getVideoChannel().getEndpoint().getID() + ": " + msg;
logger.info(msg);
}
}
/**
* Class is a transport layer for WebRTC data channels. It consists of SCTP connection running on
* top of ICE/DTLS layer. Manages WebRTC data channels. See
* http://tools.ietf.org/html/draft-ietf-rtcweb-data-channel-08 for more info on WebRTC data
* channels.
*
* <p>Control protocol: http://tools.ietf.org/html/draft-ietf-rtcweb-data-protocol-03 FIXME handle
* closing of data channels(SCTP stream reset)
*
* @author Pawel Domas
* @author Lyubomir Marinov
* @author Boris Grozev
*/
public class SctpConnection extends Channel
implements SctpDataCallback, SctpSocket.NotificationListener {
/** Generator used to track debug IDs. */
private static int debugIdGen = -1;
/** DTLS transport buffer size. Note: randomly chosen. */
private static final int DTLS_BUFFER_SIZE = 2048;
/** Switch used for debugging SCTP traffic purposes. FIXME to be removed */
private static final boolean LOG_SCTP_PACKETS = false;
/** The logger */
private static final Logger logger = Logger.getLogger(SctpConnection.class);
/**
* Message type used to acknowledge WebRTC data channel allocation on SCTP stream ID on which
* <tt>MSG_OPEN_CHANNEL</tt> message arrives.
*/
private static final int MSG_CHANNEL_ACK = 0x2;
private static final byte[] MSG_CHANNEL_ACK_BYTES = new byte[] {MSG_CHANNEL_ACK};
/**
* Message with this type sent over control PPID in order to open new WebRTC data channel on SCTP
* stream ID that this message is sent.
*/
private static final int MSG_OPEN_CHANNEL = 0x3;
/** SCTP transport buffer size. */
private static final int SCTP_BUFFER_SIZE = DTLS_BUFFER_SIZE - 13;
/** The pool of <tt>Thread</tt>s which run <tt>SctpConnection</tt>s. */
private static final ExecutorService threadPool =
ExecutorUtils.newCachedThreadPool(true, SctpConnection.class.getName());
/** Payload protocol id that identifies binary data in WebRTC data channel. */
static final int WEB_RTC_PPID_BIN = 53;
/** Payload protocol id for control data. Used for <tt>WebRtcDataStream</tt> allocation. */
static final int WEB_RTC_PPID_CTRL = 50;
/** Payload protocol id that identifies text data UTF8 encoded in WebRTC data channels. */
static final int WEB_RTC_PPID_STRING = 51;
/**
* The <tt>String</tt> value of the <tt>Protocol</tt> field of the <tt>DATA_CHANNEL_OPEN</tt>
* message.
*/
private static final String WEBRTC_DATA_CHANNEL_PROTOCOL = "http://jitsi.org/protocols/colibri";
private static synchronized int generateDebugId() {
debugIdGen += 2;
return debugIdGen;
}
/**
* Indicates whether the STCP association is ready and has not been ended by a subsequent state
* change.
*/
private boolean assocIsUp;
/** Indicates if we have accepted incoming connection. */
private boolean acceptedIncomingConnection;
/** Data channels mapped by SCTP stream identified(sid). */
private final Map<Integer, WebRtcDataStream> channels = new HashMap<Integer, WebRtcDataStream>();
/** Debug ID used to distinguish SCTP sockets in packet logs. */
private final int debugId;
/**
* The <tt>AsyncExecutor</tt> which is to asynchronously dispatch the events fired by this
* instance in order to prevent possible listeners from blocking this <tt>SctpConnection</tt> in
* general and {@link #sctpSocket} in particular for too long. The timeout of <tt>15</tt> is
* chosen to be in accord with the time it takes to expire a <tt>Channel</tt>.
*/
private final AsyncExecutor<Runnable> eventDispatcher =
new AsyncExecutor<Runnable>(15, TimeUnit.MILLISECONDS);
/** Datagram socket for ICE/UDP layer. */
private IceSocketWrapper iceSocket;
/**
* List of <tt>WebRtcDataStreamListener</tt>s that will be notified whenever new WebRTC data
* channel is opened.
*/
private final List<WebRtcDataStreamListener> listeners =
new ArrayList<WebRtcDataStreamListener>();
/** Remote SCTP port. */
private final int remoteSctpPort;
/** <tt>SctpSocket</tt> used for SCTP transport. */
private SctpSocket sctpSocket;
/**
* Flag prevents from starting this connection multiple times from {@link #maybeStartStream()}.
*/
private boolean started;
/**
* Initializes a new <tt>SctpConnection</tt> instance.
*
* @param id the string identifier of this connection instance
* @param content the <tt>Content</tt> which is initializing the new instance
* @param endpoint the <tt>Endpoint</tt> of newly created instance
* @param remoteSctpPort the SCTP port used by remote peer
* @param channelBundleId the ID of the channel-bundle this <tt>SctpConnection</tt> is to be a
* part of (or <tt>null</tt> if no it is not to be a part of a channel-bundle).
* @throws Exception if an error occurs while initializing the new instance
*/
public SctpConnection(
String id, Content content, Endpoint endpoint, int remoteSctpPort, String channelBundleId)
throws Exception {
super(content, id, channelBundleId);
setEndpoint(endpoint.getID());
this.remoteSctpPort = remoteSctpPort;
this.debugId = generateDebugId();
}
/**
* Adds <tt>WebRtcDataStreamListener</tt> to the list of listeners.
*
* @param listener the <tt>WebRtcDataStreamListener</tt> to be added to the listeners list.
*/
public void addChannelListener(WebRtcDataStreamListener listener) {
if (listener == null) {
throw new NullPointerException("listener");
} else {
synchronized (listeners) {
if (!listeners.contains(listener)) {
listeners.add(listener);
}
}
}
}
/** {@inheritDoc} */
@Override
protected void closeStream() throws IOException {
try {
synchronized (this) {
assocIsUp = false;
acceptedIncomingConnection = false;
if (sctpSocket != null) {
sctpSocket.close();
sctpSocket = null;
}
}
} finally {
if (iceSocket != null) {
// It is now the responsibility of the transport manager to
// close the socket.
// iceUdpSocket.close();
}
}
}
/** {@inheritDoc} */
@Override
public void expire() {
try {
eventDispatcher.shutdown();
} finally {
super.expire();
}
}
/**
* Gets the <tt>WebRtcDataStreamListener</tt>s added to this instance.
*
* @return the <tt>WebRtcDataStreamListener</tt>s added to this instance or <tt>null</tt> if there
* are no <tt>WebRtcDataStreamListener</tt>s added to this instance
*/
private WebRtcDataStreamListener[] getChannelListeners() {
WebRtcDataStreamListener[] ls;
synchronized (listeners) {
if (listeners.isEmpty()) {
ls = null;
} else {
ls = listeners.toArray(new WebRtcDataStreamListener[listeners.size()]);
}
}
return ls;
}
/**
* Returns default <tt>WebRtcDataStream</tt> if it's ready or <tt>null</tt> otherwise.
*
* @return <tt>WebRtcDataStream</tt> if it's ready or <tt>null</tt> otherwise.
* @throws IOException
*/
public WebRtcDataStream getDefaultDataStream() throws IOException {
WebRtcDataStream def;
synchronized (this) {
if (sctpSocket == null) {
def = null;
} else {
// Channel that runs on sid 0
def = channels.get(0);
if (def == null) {
def = openChannel(0, 0, 0, 0, "default");
}
// Pawel Domas: Must be acknowledged before use
/*
* XXX Lyubomir Marinov: We're always sending ordered. According
* to "WebRTC Data Channel Establishment Protocol", we can start
* sending messages containing user data after the
* DATA_CHANNEL_OPEN message has been sent without waiting for
* the reception of the corresponding DATA_CHANNEL_ACK message.
*/
// if (!def.isAcknowledged())
// def = null;
}
}
return def;
}
/**
* Returns <tt>true</tt> if this <tt>SctpConnection</tt> is connected to the remote peer and
* operational.
*
* @return <tt>true</tt> if this <tt>SctpConnection</tt> is connected to the remote peer and
* operational
*/
public boolean isReady() {
return assocIsUp && acceptedIncomingConnection;
}
/** {@inheritDoc} */
@Override
protected void maybeStartStream() throws IOException {
// connector
final StreamConnector connector = getStreamConnector();
if (connector == null) return;
synchronized (this) {
if (started) return;
threadPool.execute(
new Runnable() {
@Override
public void run() {
try {
Sctp.init();
runOnDtlsTransport(connector);
} catch (IOException e) {
logger.error(e, e);
} finally {
try {
Sctp.finish();
} catch (IOException e) {
logger.error("Failed to shutdown SCTP stack", e);
}
}
}
});
started = true;
}
}
/**
* Submits {@link #notifyChannelOpenedInEventDispatcher(WebRtcDataStream)} to {@link
* #eventDispatcher} for asynchronous execution.
*
* @param dataChannel
*/
private void notifyChannelOpened(final WebRtcDataStream dataChannel) {
if (!isExpired()) {
eventDispatcher.execute(
new Runnable() {
@Override
public void run() {
notifyChannelOpenedInEventDispatcher(dataChannel);
}
});
}
}
private void notifyChannelOpenedInEventDispatcher(WebRtcDataStream dataChannel) {
/*
* When executing asynchronously in eventDispatcher, it is technically
* possible that this SctpConnection may have expired by now.
*/
if (!isExpired()) {
WebRtcDataStreamListener[] ls = getChannelListeners();
if (ls != null) {
for (WebRtcDataStreamListener l : ls) {
l.onChannelOpened(this, dataChannel);
}
}
}
}
/**
* Submits {@link #notifySctpConnectionReadyInEventDispatcher()} to {@link #eventDispatcher} for
* asynchronous execution.
*/
private void notifySctpConnectionReady() {
if (!isExpired()) {
eventDispatcher.execute(
new Runnable() {
@Override
public void run() {
notifySctpConnectionReadyInEventDispatcher();
}
});
}
}
/**
* Notifies the <tt>WebRtcDataStreamListener</tt>s added to this instance that this
* <tt>SctpConnection</tt> is ready i.e. it is connected to the remote peer and operational.
*/
private void notifySctpConnectionReadyInEventDispatcher() {
/*
* When executing asynchronously in eventDispatcher, it is technically
* possible that this SctpConnection may have expired by now.
*/
if (!isExpired() && isReady()) {
WebRtcDataStreamListener[] ls = getChannelListeners();
if (ls != null) {
for (WebRtcDataStreamListener l : ls) {
l.onSctpConnectionReady(this);
}
}
}
}
/**
* Handles control packet.
*
* @param data raw packet data that arrived on control PPID.
* @param sid SCTP stream id on which the data has arrived.
*/
private synchronized void onCtrlPacket(byte[] data, int sid) throws IOException {
ByteBuffer buffer = ByteBuffer.wrap(data);
int messageType = /* 1 byte unsigned integer */ 0xFF & buffer.get();
if (messageType == MSG_CHANNEL_ACK) {
if (logger.isDebugEnabled()) {
logger.debug(getEndpoint().getID() + " ACK received SID: " + sid);
}
// Open channel ACK
WebRtcDataStream channel = channels.get(sid);
if (channel != null) {
// Ack check prevents from firing multiple notifications
// if we get more than one ACKs (by mistake/bug).
if (!channel.isAcknowledged()) {
channel.ackReceived();
notifyChannelOpened(channel);
} else {
logger.warn("Redundant ACK received for SID: " + sid);
}
} else {
logger.error("No channel exists on sid: " + sid);
}
} else if (messageType == MSG_OPEN_CHANNEL) {
int channelType = /* 1 byte unsigned integer */ 0xFF & buffer.get();
int priority = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
long reliability = /* 4 bytes unsigned integer */ 0xFFFFFFFFL & buffer.getInt();
int labelLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
int protocolLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
String label;
String protocol;
if (labelLength == 0) {
label = "";
} else {
byte[] labelBytes = new byte[labelLength];
buffer.get(labelBytes);
label = new String(labelBytes, "UTF-8");
}
if (protocolLength == 0) {
protocol = "";
} else {
byte[] protocolBytes = new byte[protocolLength];
buffer.get(protocolBytes);
protocol = new String(protocolBytes, "UTF-8");
}
if (logger.isDebugEnabled()) {
logger.debug(
"!!! "
+ getEndpoint().getID()
+ " data channel open request on SID: "
+ sid
+ " type: "
+ channelType
+ " prio: "
+ priority
+ " reliab: "
+ reliability
+ " label: "
+ label
+ " proto: "
+ protocol);
}
if (channels.containsKey(sid)) {
logger.error("Channel on sid: " + sid + " already exists");
}
WebRtcDataStream newChannel = new WebRtcDataStream(sctpSocket, sid, label, true);
channels.put(sid, newChannel);
sendOpenChannelAck(sid);
notifyChannelOpened(newChannel);
} else {
logger.error("Unexpected ctrl msg type: " + messageType);
}
}
/** {@inheritDoc} */
@Override
protected void onEndpointChanged(Endpoint oldValue, Endpoint newValue) {
if (oldValue != null) oldValue.setSctpConnection(null);
if (newValue != null) newValue.setSctpConnection(this);
}
/** Implements notification in order to track socket state. */
@Override
public synchronized void onSctpNotification(SctpSocket socket, SctpNotification notification) {
if (logger.isDebugEnabled()) {
logger.debug("socket=" + socket + "; notification=" + notification);
}
switch (notification.sn_type) {
case SctpNotification.SCTP_ASSOC_CHANGE:
SctpNotification.AssociationChange assocChange =
(SctpNotification.AssociationChange) notification;
switch (assocChange.state) {
case SctpNotification.AssociationChange.SCTP_COMM_UP:
if (!assocIsUp) {
boolean wasReady = isReady();
assocIsUp = true;
if (isReady() && !wasReady) notifySctpConnectionReady();
}
break;
case SctpNotification.AssociationChange.SCTP_COMM_LOST:
case SctpNotification.AssociationChange.SCTP_SHUTDOWN_COMP:
case SctpNotification.AssociationChange.SCTP_CANT_STR_ASSOC:
try {
closeStream();
} catch (IOException e) {
logger.error("Error closing SCTP socket", e);
}
break;
}
break;
}
}
/**
* {@inheritDoc}
*
* <p>SCTP input data callback.
*/
@Override
public void onSctpPacket(
byte[] data, int sid, int ssn, int tsn, long ppid, int context, int flags) {
if (ppid == WEB_RTC_PPID_CTRL) {
// Channel control PPID
try {
onCtrlPacket(data, sid);
} catch (IOException e) {
logger.error("IOException when processing ctrl packet", e);
}
} else if (ppid == WEB_RTC_PPID_STRING || ppid == WEB_RTC_PPID_BIN) {
WebRtcDataStream channel;
synchronized (this) {
channel = channels.get(sid);
}
if (channel == null) {
logger.error("No channel found for sid: " + sid);
return;
}
if (ppid == WEB_RTC_PPID_STRING) {
// WebRTC String
String str;
String charsetName = "UTF-8";
try {
str = new String(data, charsetName);
} catch (UnsupportedEncodingException uee) {
logger.error("Unsupported charset encoding/name " + charsetName, uee);
str = null;
}
channel.onStringMsg(str);
} else {
// WebRTC Binary
channel.onBinaryMsg(data);
}
} else {
logger.warn("Got message on unsupported PPID: " + ppid);
}
}
/**
* Opens new WebRTC data channel using specified parameters.
*
* @param type channel type as defined in control protocol description. Use 0 for "reliable".
* @param prio channel priority. The higher the number, the lower the priority.
* @param reliab Reliability Parameter<br>
* This field is ignored if a reliable channel is used. If a partial reliable channel with
* limited number of retransmissions is used, this field specifies the number of
* retransmissions. If a partial reliable channel with limited lifetime is used, this field
* specifies the maximum lifetime in milliseconds. The following table summarizes this:<br>
* </br>
* <p>+------------------------------------------------+------------------+ | Channel Type |
* Reliability | | | Parameter |
* +------------------------------------------------+------------------+ |
* DATA_CHANNEL_RELIABLE | Ignored | | DATA_CHANNEL_RELIABLE_UNORDERED | Ignored | |
* DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT | Number of RTX | |
* DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED | Number of RTX | |
* DATA_CHANNEL_PARTIAL_RELIABLE_TIMED | Lifetime in ms | |
* DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED | Lifetime in ms |
* +------------------------------------------------+------------------+
* @param sid SCTP stream id that will be used by new channel (it must not be already used).
* @param label text label for the channel.
* @return new instance of <tt>WebRtcDataStream</tt> that represents opened WebRTC data channel.
* @throws IOException if IO error occurs.
*/
public synchronized WebRtcDataStream openChannel(
int type, int prio, long reliab, int sid, String label) throws IOException {
if (channels.containsKey(sid)) {
throw new IOException("Channel on sid: " + sid + " already exists");
}
// Label Length & Label
byte[] labelBytes;
int labelByteLength;
if (label == null) {
labelBytes = null;
labelByteLength = 0;
} else {
labelBytes = label.getBytes("UTF-8");
labelByteLength = labelBytes.length;
if (labelByteLength > 0xFFFF) labelByteLength = 0xFFFF;
}
// Protocol Length & Protocol
String protocol = WEBRTC_DATA_CHANNEL_PROTOCOL;
byte[] protocolBytes;
int protocolByteLength;
if (protocol == null) {
protocolBytes = null;
protocolByteLength = 0;
} else {
protocolBytes = protocol.getBytes("UTF-8");
protocolByteLength = protocolBytes.length;
if (protocolByteLength > 0xFFFF) protocolByteLength = 0xFFFF;
}
ByteBuffer packet = ByteBuffer.allocate(12 + labelByteLength + protocolByteLength);
// Message open new channel on current sid
// Message Type
packet.put((byte) MSG_OPEN_CHANNEL);
// Channel Type
packet.put((byte) type);
// Priority
packet.putShort((short) prio);
// Reliability Parameter
packet.putInt((int) reliab);
// Label Length
packet.putShort((short) labelByteLength);
// Protocol Length
packet.putShort((short) protocolByteLength);
// Label
if (labelByteLength != 0) {
packet.put(labelBytes, 0, labelByteLength);
}
// Protocol
if (protocolByteLength != 0) {
packet.put(protocolBytes, 0, protocolByteLength);
}
int sentCount = sctpSocket.send(packet.array(), true, sid, WEB_RTC_PPID_CTRL);
if (sentCount != packet.capacity()) {
throw new IOException("Failed to open new chanel on sid: " + sid);
}
WebRtcDataStream channel = new WebRtcDataStream(sctpSocket, sid, label, false);
channels.put(sid, channel);
return channel;
}
/**
* Removes <tt>WebRtcDataStreamListener</tt> from the list of listeners.
*
* @param listener the <tt>WebRtcDataStreamListener</tt> to be removed from the listeners list.
*/
public void removeChannelListener(WebRtcDataStreamListener listener) {
if (listener != null) {
synchronized (listeners) {
listeners.remove(listener);
}
}
}
private void runOnDtlsTransport(StreamConnector connector) throws IOException {
DtlsControlImpl dtlsControl = (DtlsControlImpl) getTransportManager().getDtlsControl(this);
DtlsTransformEngine engine = dtlsControl.getTransformEngine();
final DtlsPacketTransformer transformer = (DtlsPacketTransformer) engine.getRTPTransformer();
byte[] receiveBuffer = new byte[SCTP_BUFFER_SIZE];
if (LOG_SCTP_PACKETS) {
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_LOCATION, System.getProperty("java.io.tmpdir"));
System.setProperty(
ConfigurationService.PNAME_SC_HOME_DIR_NAME, SctpConnection.class.getName());
}
synchronized (this) {
// FIXME local SCTP port is hardcoded in bridge offer SDP (Jitsi
// Meet)
sctpSocket = Sctp.createSocket(5000);
assocIsUp = false;
acceptedIncomingConnection = false;
}
// Implement output network link for SCTP stack on DTLS transport
sctpSocket.setLink(
new NetworkLink() {
@Override
public void onConnOut(SctpSocket s, byte[] packet) throws IOException {
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) debugId},
5000,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
PacketLoggingService.TransportName.UDP,
true,
packet);
}
// Send through DTLS transport
transformer.sendApplicationData(packet, 0, packet.length);
}
});
if (logger.isDebugEnabled()) {
logger.debug("Connecting SCTP to port: " + remoteSctpPort + " to " + getEndpoint().getID());
}
sctpSocket.setNotificationListener(this);
sctpSocket.listen();
// FIXME manage threads
threadPool.execute(
new Runnable() {
@Override
public void run() {
SctpSocket sctpSocket = null;
try {
// sctpSocket is set to null on close
sctpSocket = SctpConnection.this.sctpSocket;
while (sctpSocket != null) {
if (sctpSocket.accept()) {
acceptedIncomingConnection = true;
break;
}
Thread.sleep(100);
sctpSocket = SctpConnection.this.sctpSocket;
}
if (isReady()) {
notifySctpConnectionReady();
}
} catch (Exception e) {
logger.error("Error accepting SCTP connection", e);
}
if (sctpSocket == null && logger.isInfoEnabled()) {
logger.info(
"SctpConnection " + getID() + " closed" + " before SctpSocket accept()-ed.");
}
}
});
// Notify that from now on SCTP connection is considered functional
sctpSocket.setDataCallback(this);
// Setup iceSocket
DatagramSocket datagramSocket = connector.getDataSocket();
if (datagramSocket != null) {
this.iceSocket = new IceUdpSocketWrapper(datagramSocket);
} else {
this.iceSocket = new IceTcpSocketWrapper(connector.getDataTCPSocket());
}
DatagramPacket rcvPacket = new DatagramPacket(receiveBuffer, 0, receiveBuffer.length);
// Receive loop, breaks when SCTP socket is closed
try {
do {
iceSocket.receive(rcvPacket);
RawPacket raw =
new RawPacket(rcvPacket.getData(), rcvPacket.getOffset(), rcvPacket.getLength());
raw = transformer.reverseTransform(raw);
// Check for app data
if (raw == null) continue;
if (LOG_SCTP_PACKETS) {
LibJitsi.getPacketLoggingService()
.logPacket(
PacketLoggingService.ProtocolName.ICE4J,
new byte[] {0, 0, 0, (byte) (debugId + 1)},
remoteSctpPort,
new byte[] {0, 0, 0, (byte) debugId},
5000,
PacketLoggingService.TransportName.UDP,
false,
raw.getBuffer(),
raw.getOffset(),
raw.getLength());
}
// Pass network packet to SCTP stack
sctpSocket.onConnIn(raw.getBuffer(), raw.getOffset(), raw.getLength());
} while (true);
} finally {
// Eventually, close the socket although it should happen from
// expire().
synchronized (this) {
assocIsUp = false;
acceptedIncomingConnection = false;
if (sctpSocket != null) {
sctpSocket.close();
sctpSocket = null;
}
}
}
}
/**
* Sends acknowledgment for open channel request on given SCTP stream ID.
*
* @param sid SCTP stream identifier to be used for sending ack.
*/
private void sendOpenChannelAck(int sid) throws IOException {
// Send ACK
byte[] ack = MSG_CHANNEL_ACK_BYTES;
int sendAck = sctpSocket.send(ack, true, sid, WEB_RTC_PPID_CTRL);
if (sendAck != ack.length) {
logger.error("Failed to send open channel confirmation");
}
}
/**
* {@inheritDoc}
*
* <p>Creates a <tt>TransportManager</tt> instance suitable for an <tt>SctpConnection</tt> (e.g.
* with 1 component only).
*/
protected TransportManager createTransportManager(String xmlNamespace) throws IOException {
if (IceUdpTransportPacketExtension.NAMESPACE.equals(xmlNamespace)) {
Content content = getContent();
return new IceUdpTransportManager(
content.getConference(), isInitiator(), 1 /* num components */, content.getName());
} else if (RawUdpTransportPacketExtension.NAMESPACE.equals(xmlNamespace)) {
// TODO: support RawUdp once RawUdpTransportManager is updated
// return new RawUdpTransportManager(this);
throw new IllegalArgumentException("Unsupported Jingle transport " + xmlNamespace);
} else {
throw new IllegalArgumentException("Unsupported Jingle transport " + xmlNamespace);
}
}
}
/**
* Handles control packet.
*
* @param data raw packet data that arrived on control PPID.
* @param sid SCTP stream id on which the data has arrived.
*/
private synchronized void onCtrlPacket(byte[] data, int sid) throws IOException {
ByteBuffer buffer = ByteBuffer.wrap(data);
int messageType = /* 1 byte unsigned integer */ 0xFF & buffer.get();
if (messageType == MSG_CHANNEL_ACK) {
if (logger.isDebugEnabled()) {
logger.debug(getEndpoint().getID() + " ACK received SID: " + sid);
}
// Open channel ACK
WebRtcDataStream channel = channels.get(sid);
if (channel != null) {
// Ack check prevents from firing multiple notifications
// if we get more than one ACKs (by mistake/bug).
if (!channel.isAcknowledged()) {
channel.ackReceived();
notifyChannelOpened(channel);
} else {
logger.warn("Redundant ACK received for SID: " + sid);
}
} else {
logger.error("No channel exists on sid: " + sid);
}
} else if (messageType == MSG_OPEN_CHANNEL) {
int channelType = /* 1 byte unsigned integer */ 0xFF & buffer.get();
int priority = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
long reliability = /* 4 bytes unsigned integer */ 0xFFFFFFFFL & buffer.getInt();
int labelLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
int protocolLength = /* 2 bytes unsigned integer */ 0xFFFF & buffer.getShort();
String label;
String protocol;
if (labelLength == 0) {
label = "";
} else {
byte[] labelBytes = new byte[labelLength];
buffer.get(labelBytes);
label = new String(labelBytes, "UTF-8");
}
if (protocolLength == 0) {
protocol = "";
} else {
byte[] protocolBytes = new byte[protocolLength];
buffer.get(protocolBytes);
protocol = new String(protocolBytes, "UTF-8");
}
if (logger.isDebugEnabled()) {
logger.debug(
"!!! "
+ getEndpoint().getID()
+ " data channel open request on SID: "
+ sid
+ " type: "
+ channelType
+ " prio: "
+ priority
+ " reliab: "
+ reliability
+ " label: "
+ label
+ " proto: "
+ protocol);
}
if (channels.containsKey(sid)) {
logger.error("Channel on sid: " + sid + " already exists");
}
WebRtcDataStream newChannel = new WebRtcDataStream(sctpSocket, sid, label, true);
channels.put(sid, newChannel);
sendOpenChannelAck(sid);
notifyChannelOpened(newChannel);
} else {
logger.error("Unexpected ctrl msg type: " + messageType);
}
}
class DBPortPool extends SimplePool<DBPort> {
static class Holder {
Holder(MongoOptions options) {
_options = options;
}
DBPortPool get(InetSocketAddress addr) {
DBPortPool p = _pools.get(addr);
if (p != null) return p;
synchronized (_pools) {
p = _pools.get(addr);
if (p != null) {
return p;
}
p = new DBPortPool(addr, _options);
_pools.put(addr, p);
String name = "com.mongodb:type=ConnectionPool,host=" + addr.toString().replace(':', '_');
try {
ObjectName on = new ObjectName(name);
if (_server.isRegistered(on)) {
_server.unregisterMBean(on);
Bytes.LOGGER.log(
Level.INFO, "multiple Mongo instances for same host, jmx numbers might be off");
}
_server.registerMBean(p, on);
} catch (JMException e) {
Bytes.LOGGER.log(Level.WARNING, "jmx registration error, continuing", e);
} catch (java.security.AccessControlException e) {
Bytes.LOGGER.log(Level.WARNING, "jmx registration error, continuing", e);
}
}
return p;
}
void close() {
synchronized (_pools) {
for (DBPortPool p : _pools.values()) {
p.close();
}
}
}
final MongoOptions _options;
final Map<InetSocketAddress, DBPortPool> _pools =
Collections.synchronizedMap(new HashMap<InetSocketAddress, DBPortPool>());
final MBeanServer _server = ManagementFactory.getPlatformMBeanServer();
}
// ----
public static class NoMoreConnection extends MongoInternalException {
NoMoreConnection(String msg) {
super(msg);
}
}
public static class SemaphoresOut extends NoMoreConnection {
SemaphoresOut() {
super("Out of semaphores to get db connection");
}
}
public static class ConnectionWaitTimeOut extends NoMoreConnection {
ConnectionWaitTimeOut(int timeout) {
super("Connection wait timeout after " + timeout + " ms");
}
}
// ----
DBPortPool(InetSocketAddress addr, MongoOptions options) {
super("DBPortPool-" + addr.toString(), options.connectionsPerHost, options.connectionsPerHost);
_options = options;
_addr = addr;
_waitingSem =
new Semaphore(
_options.connectionsPerHost * _options.threadsAllowedToBlockForConnectionMultiplier);
}
protected long memSize(DBPort p) {
return 0;
}
protected int pick(int iThink, boolean couldCreate) {
final int id = Thread.currentThread().hashCode();
final int s = _availSafe.size();
for (int i = 0; i < s; i++) {
DBPort p = _availSafe.get(i);
if (p._lastThread == id) return i;
}
if (couldCreate) return -1;
return iThink;
}
public DBPort get() {
DBPort port = null;
if (!_waitingSem.tryAcquire()) throw new SemaphoresOut();
try {
port = get(_options.maxWaitTime);
} finally {
_waitingSem.release();
}
if (port == null) throw new ConnectionWaitTimeOut(_options.maxWaitTime);
port._lastThread = Thread.currentThread().hashCode();
return port;
}
void gotError(Exception e) {
if (e instanceof java.nio.channels.ClosedByInterruptException
|| e instanceof InterruptedException) {
// this is probably a request that is taking too long
// so usually doesn't mean there is a real db problem
return;
}
if (e instanceof java.net.SocketTimeoutException && _options.socketTimeout > 0) {
// we don't want to clear the port pool for 1 connection timing out
return;
}
// We don't want to clear the entire pool for the occasional error.
if (e instanceof SocketException) {
if (recentFailures < ALLOWED_ERRORS_BEFORE_CLEAR) {
return;
}
}
Bytes.LOGGER.log(Level.INFO, "emptying DBPortPool b/c of error", e);
clear();
}
void close() {
clear();
}
public void cleanup(DBPort p) {
p.close();
}
public boolean ok(DBPort t) {
return _addr.equals(t._addr);
}
protected DBPort createNew() throws MongoInternalException {
try {
return new DBPort(_addr, this, _options);
} catch (IOException ioe) {
throw new MongoInternalException("can't create port to:" + _addr, ioe);
}
}
public int getRecentFailures() {
return recentFailures;
}
public void incrementRecentFailures() {
_logger.warning("Failure recorded:" + _addr.toString());
this.recentFailures++;
}
public void resetRecentFailures() {
if (this.recentFailures > 0) {
_logger.warning("Successful Request. Reseting recent failures:" + _addr.toString());
}
this.recentFailures = 0;
}
final MongoOptions _options;
private final Semaphore _waitingSem;
final InetSocketAddress _addr;
boolean _everWorked = false;
public static final Integer ALLOWED_ERRORS_BEFORE_CLEAR =
Integer.valueOf(System.getProperty("MONGO.ERRORS_BEFORE_CLEAR", "5"));
private Logger _logger = Logger.getLogger(DBPortPool.class.toString());
/** The number of failures that this port pool has recently experienced. */
private int recentFailures = 0;
}
/**
* Creates an instance of <tt>ShowPreviewDialog</tt>
*
* @param chatPanel The <tt>ChatConversationPanel</tt> that is associated with this dialog.
*/
ShowPreviewDialog(final ChatConversationPanel chatPanel) {
this.chatPanel = chatPanel;
this.setTitle(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_DIALOG_TITLE"));
okButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.OK"));
cancelButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.CANCEL"));
JPanel mainPanel = new TransparentPanel();
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// mainPanel.setPreferredSize(new Dimension(200, 150));
this.getContentPane().add(mainPanel);
JTextPane descriptionMsg = new JTextPane();
descriptionMsg.setEditable(false);
descriptionMsg.setOpaque(false);
descriptionMsg.setText(
GuiActivator.getResources().getI18NString("service.gui.SHOW_PREVIEW_WARNING_DESCRIPTION"));
Icon warningIcon = null;
try {
warningIcon =
new ImageIcon(
ImageIO.read(
GuiActivator.getResources().getImageURL("service.gui.icons.WARNING_ICON")));
} catch (IOException e) {
logger.debug("failed to load the warning icon");
}
JLabel warningSign = new JLabel(warningIcon);
JPanel warningPanel = new TransparentPanel();
warningPanel.setLayout(new BoxLayout(warningPanel, BoxLayout.X_AXIS));
warningPanel.add(warningSign);
warningPanel.add(Box.createHorizontalStrut(10));
warningPanel.add(descriptionMsg);
enableReplacement =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_STATUS"));
enableReplacement.setOpaque(false);
enableReplacement.setSelected(cfg.getBoolean(ReplacementProperty.REPLACEMENT_ENABLE, true));
enableReplacementProposal =
new JCheckBox(
GuiActivator.getResources()
.getI18NString("plugin.chatconfig.replacement.ENABLE_REPLACEMENT_PROPOSAL"));
enableReplacementProposal.setOpaque(false);
JPanel checkBoxPanel = new TransparentPanel();
checkBoxPanel.setLayout(new BoxLayout(checkBoxPanel, BoxLayout.Y_AXIS));
checkBoxPanel.add(enableReplacement);
checkBoxPanel.add(enableReplacementProposal);
JPanel buttonsPanel = new TransparentPanel(new FlowLayout(FlowLayout.CENTER));
buttonsPanel.add(okButton);
buttonsPanel.add(cancelButton);
mainPanel.add(warningPanel);
mainPanel.add(Box.createVerticalStrut(10));
mainPanel.add(checkBoxPanel);
mainPanel.add(buttonsPanel);
okButton.addActionListener(this);
cancelButton.addActionListener(this);
this.setPreferredSize(new Dimension(390, 230));
}
private void logDebug(String msg) {
if (logger.isDebugEnabled()) {
msg = getSimulcastEngine().getVideoChannel().getEndpoint().getID() + ": " + msg;
logger.debug(msg);
}
}
