clockwerk-opensim-stable – Rev 1
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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Reflection;
using OpenSim.Framework.Servers;
using Mono.Addins;
using log4net;
using Nini.Config;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Framework.Servers.HttpServer;
namespace OpenSim.Region.OptionalModules.WebSocketEchoModule
{
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule", Id = "WebSocketEchoModule")]
public class WebSocketEchoModule : ISharedRegionModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private bool enabled;
public string Name { get { return "WebSocketEchoModule"; } }
public Type ReplaceableInterface { get { return null; } }
private HashSet<WebSocketHttpServerHandler> _activeHandlers = new HashSet<WebSocketHttpServerHandler>();
public void Initialise(IConfigSource pConfig)
{
enabled = (pConfig.Configs["WebSocketEcho"] != null);
// if (enabled)
// m_log.DebugFormat("[WebSocketEchoModule]: INITIALIZED MODULE");
}
/// <summary>
/// This method sets up the callback to WebSocketHandlerCallback below when a HTTPRequest comes in for /echo
/// </summary>
public void PostInitialise()
{
if (enabled)
MainServer.Instance.AddWebSocketHandler("/echo", WebSocketHandlerCallback);
}
// This gets called by BaseHttpServer and gives us an opportunity to set things on the WebSocket handler before we turn it on
public void WebSocketHandlerCallback(string path, WebSocketHttpServerHandler handler)
{
SubscribeToEvents(handler);
handler.SetChunksize(8192);
handler.NoDelay_TCP_Nagle = true;
handler.HandshakeAndUpgrade();
}
//These are our normal events
public void SubscribeToEvents(WebSocketHttpServerHandler handler)
{
handler.OnClose += HandlerOnOnClose;
handler.OnText += HandlerOnOnText;
handler.OnUpgradeCompleted += HandlerOnOnUpgradeCompleted;
handler.OnData += HandlerOnOnData;
handler.OnPong += HandlerOnOnPong;
}
public void UnSubscribeToEvents(WebSocketHttpServerHandler handler)
{
handler.OnClose -= HandlerOnOnClose;
handler.OnText -= HandlerOnOnText;
handler.OnUpgradeCompleted -= HandlerOnOnUpgradeCompleted;
handler.OnData -= HandlerOnOnData;
handler.OnPong -= HandlerOnOnPong;
}
private void HandlerOnOnPong(object sender, PongEventArgs pongdata)
{
m_log.Info("[WebSocketEchoModule]: Got a pong.. ping time: " + pongdata.PingResponseMS);
}
private void HandlerOnOnData(object sender, WebsocketDataEventArgs data)
{
WebSocketHttpServerHandler obj = sender as WebSocketHttpServerHandler;
obj.SendData(data.Data);
m_log.Info("[WebSocketEchoModule]: We received a bunch of ugly non-printable bytes");
obj.SendPingCheck();
}
private void HandlerOnOnUpgradeCompleted(object sender, UpgradeCompletedEventArgs completeddata)
{
WebSocketHttpServerHandler obj = sender as WebSocketHttpServerHandler;
_activeHandlers.Add(obj);
}
private void HandlerOnOnText(object sender, WebsocketTextEventArgs text)
{
WebSocketHttpServerHandler obj = sender as WebSocketHttpServerHandler;
obj.SendMessage(text.Data);
m_log.Info("[WebSocketEchoModule]: We received this: " + text.Data);
}
// Remove the references to our handler
private void HandlerOnOnClose(object sender, CloseEventArgs closedata)
{
WebSocketHttpServerHandler obj = sender as WebSocketHttpServerHandler;
UnSubscribeToEvents(obj);
lock (_activeHandlers)
_activeHandlers.Remove(obj);
obj.Dispose();
}
// Shutting down.. so shut down all sockets.
// Note.. this should be done outside of an ienumerable if you're also hook to the close event.
public void Close()
{
if (!enabled)
return;
// We convert this to a for loop so we're not in in an IEnumerable when the close
//call triggers an event which then removes item from _activeHandlers that we're enumerating
WebSocketHttpServerHandler[] items = new WebSocketHttpServerHandler[_activeHandlers.Count];
_activeHandlers.CopyTo(items);
for (int i = 0; i < items.Length; i++)
{
items[i].Close(string.Empty);
items[i].Dispose();
}
_activeHandlers.Clear();
MainServer.Instance.RemoveWebSocketHandler("/echo");
}
public void AddRegion(Scene scene)
{
// m_log.DebugFormat("[WebSocketEchoModule]: REGION {0} ADDED", scene.RegionInfo.RegionName);
}
public void RemoveRegion(Scene scene)
{
// m_log.DebugFormat("[WebSocketEchoModule]: REGION {0} REMOVED", scene.RegionInfo.RegionName);
}
public void RegionLoaded(Scene scene)
{
// m_log.DebugFormat("[WebSocketEchoModule]: REGION {0} LOADED", scene.RegionInfo.RegionName);
}
}
}
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