/**
* Blocks an external component from connecting to the local server. If the component was
*
* <p>connected when the permission was revoked then the connection of the entity will be closed.
*
* @param subdomain the subdomain of the external component that is not allowed to connect.
*/
public static void blockAccess(String subdomain) {
// Remove any previous configuration for this external component
deleteConfiguration(subdomain);
// Update the database with the new revoked permission
ExternalComponentConfiguration config = new ExternalComponentConfiguration(subdomain);
config.setPermission(Permission.blocked);
addConfiguration(config);
// Check if the component was connected and proceed to close the connection
String domain = subdomain + "." + XMPPServer.getInstance().getServerInfo().getDefaultName();
Session session = SessionManager.getInstance().getComponentSession(domain);
if (session != null) {
session.getConnection().close();
}
}
public void deliver(Packet packet) throws UnauthorizedException, PacketException {
if (isClosed()) {
deliverer.deliver(packet);
} else {
try {
// Invoke the interceptors before we send the packet
InterceptorManager.getInstance().invokeInterceptors(packet, session, false, false);
boolean errorDelivering = false;
synchronized (writer) {
try {
xmlSerializer.write(packet.getElement());
if (flashClient) {
writer.write('\0');
}
xmlSerializer.flush();
} catch (IOException e) {
Log.debug("Error delivering packet" + "\n" + this.toString(), e);
errorDelivering = true;
}
}
if (errorDelivering) {
close();
// Retry sending the packet again. Most probably if the packet is a
// Message it will be stored offline
deliverer.deliver(packet);
} else {
// Invoke the interceptors after we have sent the packet
InterceptorManager.getInstance().invokeInterceptors(packet, session, false, true);
session.incrementServerPacketCount();
}
} catch (PacketRejectedException e) {
// An interceptor rejected the packet so do nothing
}
}
}
public void close() {
boolean wasClosed = false;
synchronized (this) {
if (!isClosed()) {
try {
if (session != null) {
session.setStatus(Session.STATUS_CLOSED);
}
synchronized (writer) {
try {
// Register that we started sending data on the connection
writeStarted();
writer.write("</stream:stream>");
if (flashClient) {
writer.write('\0');
}
writer.flush();
} catch (IOException e) {
} finally {
// Register that we finished sending data on the connection
writeFinished();
}
}
} catch (Exception e) {
Log.error(
LocaleUtils.getLocalizedString("admin.error.close") + "\n" + this.toString(), e);
}
closeConnection();
wasClosed = true;
}
}
if (wasClosed) {
notifyCloseListeners();
}
}
/**
* Forces the connection to be closed immediately no matter if closing the socket takes a long
* time. This method should only be called from {@link SocketSendingTracker} when sending data
* over the socket has taken a long time and we need to close the socket, discard the connection
* and its session.
*/
private void forceClose() {
if (session != null) {
// Set that the session is closed. This will prevent threads from trying to
// deliver packets to this session thus preventing future locks.
session.setStatus(Session.STATUS_CLOSED);
}
closeConnection();
// Notify the close listeners so that the SessionManager can send unavailable
// presences if required.
notifyCloseListeners();
}
public boolean isClosed() {
if (session == null) {
return socket.isClosed();
}
return session.getStatus() == Session.STATUS_CLOSED;
}
