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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;
using System.Collections.Generic;
using System.Reflection;
using System.Threading;
using log4net;
using Nini.Config;
using Mono.Addins;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Servers;
using OpenSim.Framework.Servers.HttpServer;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Services.Interfaces;
using Caps = OpenSim.Framework.Capabilities.Caps;
using OpenSim.Capabilities.Handlers;
namespace OpenSim.Region.ClientStack.Linden
{
/// <summary>
/// This module implements both WebFetchInventoryDescendents and FetchInventoryDescendents2 capabilities.
/// </summary>
[Extension(Path = "/OpenSim/RegionModules", NodeName = "RegionModule")]
public class WebFetchInvDescModule : INonSharedRegionModule
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private Scene m_scene;
private IInventoryService m_InventoryService;
private ILibraryService m_LibraryService;
private WebFetchInvDescHandler m_webFetchHandler;
private object m_lock = new object();
private Dictionary<UUID, string> m_capsDict = new Dictionary<UUID, string>();
private Dictionary<UUID, Hashtable> m_requests = new Dictionary<UUID, Hashtable>();
bool m_busy = false;
#region ISharedRegionModule Members
public void Initialise(IConfigSource source)
{
}
public void AddRegion(Scene s)
{
m_scene = s;
}
public void RemoveRegion(Scene s)
{
m_scene.EventManager.OnRegisterCaps -= RegisterCaps;
m_scene.EventManager.OnDeregisterCaps -= DeregisterCaps;
m_scene = null;
}
public void RegionLoaded(Scene s)
{
m_InventoryService = m_scene.InventoryService;
m_LibraryService = m_scene.LibraryService;
// We'll reuse the same handler for all requests.
m_webFetchHandler = new WebFetchInvDescHandler(m_InventoryService, m_LibraryService);
m_scene.EventManager.OnRegisterCaps += RegisterCaps;
m_scene.EventManager.OnDeregisterCaps += DeregisterCaps;
}
public void PostInitialise()
{
}
public void Close() { }
public string Name { get { return "WebFetchInvDescModule"; } }
public Type ReplaceableInterface
{
get { return null; }
}
#endregion
private void RegisterCaps(UUID agentID, Caps caps)
{
string capUrl = "/CAPS/" + UUID.Random() + "/";
// Register this as a poll service
// absurd large timeout to tune later to make a bit less than viewer
PollServiceEventArgs args = new PollServiceEventArgs(HttpRequestHandler, HasEvents, GetEvents, NoEvents, agentID, 300000);
args.Type = PollServiceEventArgs.EventType.Inventory;
MainServer.Instance.AddPollServiceHTTPHandler(capUrl, args);
string hostName = m_scene.RegionInfo.ExternalHostName;
uint port = (MainServer.Instance == null) ? 0 : MainServer.Instance.Port;
string protocol = "http";
if (MainServer.Instance.UseSSL)
{
hostName = MainServer.Instance.SSLCommonName;
port = MainServer.Instance.SSLPort;
protocol = "https";
}
caps.RegisterHandler("FetchInventoryDescendents2", String.Format("{0}://{1}:{2}{3}", protocol, hostName, port, capUrl));
m_capsDict[agentID] = capUrl;
m_busy = false;
}
private void DeregisterCaps(UUID agentID, Caps caps)
{
string capUrl;
if (m_capsDict.TryGetValue(agentID, out capUrl))
{
MainServer.Instance.RemoveHTTPHandler("", capUrl);
m_capsDict.Remove(agentID);
}
}
public void HttpRequestHandler(UUID requestID, Hashtable request)
{
// m_log.DebugFormat("[FETCH2]: Received request {0}", requestID);
lock(m_lock)
m_requests[requestID] = request;
}
private bool HasEvents(UUID requestID, UUID sessionID)
{
lock (m_lock)
{
return !m_busy;
}
}
private Hashtable NoEvents(UUID requestID, UUID sessionID)
{
lock(m_lock)
m_requests.Remove(requestID);
Hashtable response = new Hashtable();
response["int_response_code"] = 500;
response["str_response_string"] = "Script timeout";
response["content_type"] = "text/plain";
response["keepalive"] = false;
response["reusecontext"] = false;
lock (m_lock)
m_busy = false;
return response;
}
private Hashtable GetEvents(UUID requestID, UUID sessionID, string request)
{
lock (m_lock)
m_busy = true;
Hashtable response = new Hashtable();
response["int_response_code"] = 500;
response["str_response_string"] = "Internal error";
response["content_type"] = "text/plain";
response["keepalive"] = false;
response["reusecontext"] = false;
try
{
Hashtable requestHash;
lock (m_lock)
{
if (!m_requests.TryGetValue(requestID, out requestHash))
{
m_busy = false;
response["str_response_string"] = "Invalid request";
return response;
}
m_requests.Remove(requestID);
}
// m_log.DebugFormat("[FETCH2]: Processed request {0}", requestID);
string reply = m_webFetchHandler.FetchInventoryDescendentsRequest(requestHash["body"].ToString(), String.Empty, String.Empty, null, null);
response["int_response_code"] = 200;
response["str_response_string"] = reply;
}
finally
{
lock (m_lock)
m_busy = false;
}
return response;
}
}
}
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