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/*
* RED5 Open Source Media Server - https://github.com/Red5/
*
* Copyright 2006-2016 by respective authors (see below). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.red5.server;
import org.red5.server.api.IClient;
import org.red5.server.api.IClientRegistry;
import org.red5.server.api.IConnection;
import org.red5.server.api.IContext;
import org.red5.server.api.event.IEvent;
import org.red5.server.api.scope.IBasicScope;
import org.red5.server.api.scope.IScope;
import org.red5.server.api.scope.IScopeHandler;
import org.red5.server.api.service.IServiceCall;
import org.red5.server.jmx.mxbeans.CoreHandlerMXBean;
import org.red5.server.net.IConnectionManager;
import org.red5.server.net.rtmp.RTMPConnManager;
import org.red5.server.net.rtmp.RTMPConnection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Base IScopeHandler implementation
*/
public class CoreHandler implements IScopeHandler, CoreHandlerMXBean {
protected static Logger log = LoggerFactory.getLogger(CoreHandler.class);
/** {@inheritDoc} */
public boolean addChildScope(IBasicScope scope) {
return true;
}
/**
* Connects client to the scope
*
* @param conn
* Client connection
* @param scope
* Scope
* @return true if client was registered within scope, false otherwise
*/
public boolean connect(IConnection conn, IScope scope) {
return connect(conn, scope, null);
}
/**
* Connects client to the scope
*
* @param conn
* Client connection
* @param scope
* Scope
* @param params
* Parameters passed from client side with connect call
* @return true if client was registered within scope, false otherwise
*/
public boolean connect(IConnection conn, IScope scope, Object[] params) {
log.debug("connect - conn: {} scope: {}", conn, scope);
// this is where we create the Client object that consolidates connections from a single client/FP.
// Now for more strangeness, I've only been looking at RTMPConnection derivatives, but it's setup() method
// seems the only way that the session id is passed in to the newly established connection and this is currently *always* passed in
// as null. I'm guessing that either the Flash Player passes some kind of unique id to us that is not being used, or that the idea
// originally was to make our own session id, for example by combining client information with the IP address or something like that.
boolean connect = false;
// Get session id
String id = conn.getSessionId();
log.trace("Session id: {}", id);
// Use client registry from scope the client connected to
IScope connectionScope = conn.getScope();
log.debug("Connection scope: {}", (connectionScope == null ? "is null" : "not null"));
// when the scope is null bad things seem to happen, if a null scope is OK then
// this block will need to be removed - Paul
if (connectionScope != null) {
// Get client registry for connection scope
IClientRegistry clientRegistry = connectionScope.getContext().getClientRegistry();
log.debug("Client registry: {}", (clientRegistry == null ? "is null" : "not null"));
if (clientRegistry != null) {
IClient client = conn.getClient();
if (client == null) {
if (!clientRegistry.hasClient(id)) {
if (conn instanceof RTMPConnection) {
log.debug("Creating new client for RTMP connection");
// this is a new connection, create a new client to hold it
client = clientRegistry.newClient(params);
// set the client on the connection
conn.setClient(client);
}
} else {
client = clientRegistry.lookupClient(id);
conn.setClient(client);
}
} else {
// set the client on the connection
conn.setClient(client);
}
// add any rtmp connections to the manager
IConnectionManager connManager = RTMPConnManager.getInstance();
if (conn instanceof RTMPConnection) {
connManager.setConnection((RTMPConnection) conn);
} else {
log.warn("Connection was not added to manager: {}", conn);
}
// assign connection to client
conn.initialize(client);
// we could checked for banned clients here
connect = true;
} else {
log.error("No client registry was found, clients cannot be looked-up or created");
}
} else {
log.error("No connection scope was found");
}
return connect;
}
/** {@inheritDoc} */
public void disconnect(IConnection conn, IScope scope) {
// do nothing here
}
/** {@inheritDoc} */
public boolean join(IClient client, IScope scope) {
return true;
}
/** {@inheritDoc} */
public void leave(IClient client, IScope scope) {
// do nothing here
}
/** {@inheritDoc} */
public void removeChildScope(IBasicScope scope) {
// do nothing here
}
/**
* Remote method invocation
*
* @param conn
* Connection to invoke method on
* @param call
* Service call context
* @return true on success
*/
public boolean serviceCall(IConnection conn, IServiceCall call) {
final IContext context = conn.getScope().getContext();
if (call.getServiceName() != null) {
context.getServiceInvoker().invoke(call, context);
} else {
context.getServiceInvoker().invoke(call, conn.getScope().getHandler());
}
return true;
}
/** {@inheritDoc} */
public boolean start(IScope scope) {
return true;
}
/** {@inheritDoc} */
public void stop(IScope scope) {
// do nothing here
}
/** {@inheritDoc} */
public boolean handleEvent(IEvent event) {
return false;
}
}