public void deliver(Packet packet) throws UnauthorizedException {
if (isClosed()) {
// OF-857: Do not allow the backup deliverer to recurse
if (backupDeliverer == null) {
Log.error("Failed to deliver packet: " + packet.toXML());
throw new IllegalStateException("Connection closed");
}
// attempt to deliver via backup only once
PacketDeliverer backup = backupDeliverer;
backupDeliverer = null;
backup.deliver(packet);
} else {
boolean errorDelivering = false;
IoBuffer buffer = IoBuffer.allocate(4096);
buffer.setAutoExpand(true);
try {
// OF-464: if the connection has been dropped, fail over to backupDeliverer (offline)
if (!ioSession.isConnected()) {
throw new IOException("Connection reset/closed by peer");
}
XMLWriter xmlSerializer =
new XMLWriter(new ByteBufferWriter(buffer, encoder.get()), new OutputFormat());
xmlSerializer.write(packet.getElement());
xmlSerializer.flush();
if (flashClient) {
buffer.put((byte) '\0');
}
buffer.flip();
ioSessionLock.lock();
try {
ioSession.write(buffer);
} finally {
ioSessionLock.unlock();
}
} catch (Exception e) {
Log.debug("Error delivering packet:\n" + packet, e);
errorDelivering = true;
}
if (errorDelivering) {
close();
// Retry sending the packet again. Most probably if the packet is a
// Message it will be stored offline
backupDeliverer.deliver(packet);
} else {
session.incrementServerPacketCount();
}
}
}
@Override
boolean canProcess(Packet packet) {
String senderDomain = packet.getFrom().getDomain();
if (!getAuthenticatedDomains().contains(senderDomain)) {
synchronized (senderDomain.intern()) {
if (!getAuthenticatedDomains().contains(senderDomain)
&& !authenticateSubdomain(senderDomain, packet.getTo().getDomain())) {
// Return error since sender domain was not validated by remote server
LocalSession.returnErrorToSender(packet);
return false;
}
}
}
return true;
}
/**
* Closes the session, the virtual connection and notifies listeners that the connection has been
* closed.
*/
@Override
public void close() {
if (state.compareAndSet(State.OPEN, State.CLOSED)) {
if (session != null) {
session.setStatus(Session.STATUS_CLOSED);
}
try {
closeVirtualConnection();
} catch (Exception e) {
Log.error(LocaleUtils.getLocalizedString("admin.error.close") + "\n" + toString(), e);
}
notifyCloseListeners();
}
}
public void close() {
synchronized (this) {
if (isClosed()) {
return;
}
try {
deliverRawText(flashClient ? "</flash:stream>" : "</stream:stream>", false);
} catch (Exception e) {
// Ignore
}
if (session != null) {
session.setStatus(Session.STATUS_CLOSED);
}
closed = true;
}
// OF-881: Notify any close listeners after the synchronized block has completed.
notifyCloseListeners(); // clean up session, etc.
ioSession.close(false); // async via MINA
}
