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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.Collections;
using System.Collections.Generic;
using OpenSim.Framework.Servers;
using OpenSim.Framework.Servers.HttpServer;
namespace OpenSim.Framework.Capabilities
{
/// <summary>
/// CapsHandlers is a cap handler container but also takes
/// care of adding and removing cap handlers to and from the
/// supplied BaseHttpServer.
/// </summary>
public class CapsHandlers
{
private Dictionary<string, IRequestHandler> m_capsHandlers = new Dictionary<string, IRequestHandler>();
private IHttpServer m_httpListener;
private string m_httpListenerHostName;
private uint m_httpListenerPort;
private bool m_useSSL = false;
/// <summary></summary>
/// CapsHandlers is a cap handler container but also takes
/// care of adding and removing cap handlers to and from the
/// supplied BaseHttpServer.
/// </summary>
/// <param name="httpListener">base HTTP server</param>
/// <param name="httpListenerHostname">host name of the HTTP server</param>
/// <param name="httpListenerPort">HTTP port</param>
public CapsHandlers(IHttpServer httpListener, string httpListenerHostname, uint httpListenerPort)
{
m_httpListener = httpListener;
m_httpListenerHostName = httpListenerHostname;
m_httpListenerPort = httpListenerPort;
if (httpListener != null && httpListener.UseSSL)
m_useSSL = true;
else
m_useSSL = false;
}
/// <summary>
/// Remove the cap handler for a capability.
/// </summary>
/// <param name="capsName">name of the capability of the cap
/// handler to be removed</param>
public void Remove(string capsName)
{
lock (m_capsHandlers)
{
m_httpListener.RemoveStreamHandler("POST", m_capsHandlers[capsName].Path);
m_httpListener.RemoveStreamHandler("PUT", m_capsHandlers[capsName].Path);
m_httpListener.RemoveStreamHandler("GET", m_capsHandlers[capsName].Path);
m_capsHandlers.Remove(capsName);
}
}
public bool ContainsCap(string cap)
{
lock (m_capsHandlers)
return m_capsHandlers.ContainsKey(cap);
}
/// <summary>
/// The indexer allows us to treat the CapsHandlers object
/// in an intuitive dictionary like way.
/// </summary>
/// <remarks>
/// The indexer will throw an exception when you try to
/// retrieve a cap handler for a cap that is not contained in
/// CapsHandlers.
/// </remarks>
public IRequestHandler this[string idx]
{
get
{
lock (m_capsHandlers)
return m_capsHandlers[idx];
}
set
{
lock (m_capsHandlers)
{
if (m_capsHandlers.ContainsKey(idx))
{
m_httpListener.RemoveStreamHandler("POST", m_capsHandlers[idx].Path);
m_capsHandlers.Remove(idx);
}
if (null == value) return;
m_capsHandlers[idx] = value;
m_httpListener.AddStreamHandler(value);
}
}
}
/// <summary>
/// Return the list of cap names for which this CapsHandlers
/// object contains cap handlers.
/// </summary>
public string[] Caps
{
get
{
lock (m_capsHandlers)
{
string[] __keys = new string[m_capsHandlers.Keys.Count];
m_capsHandlers.Keys.CopyTo(__keys, 0);
return __keys;
}
}
}
/// <summary>
/// Return an LLSD-serializable Hashtable describing the
/// capabilities and their handler details.
/// </summary>
/// <param name="excludeSeed">If true, then exclude the seed cap.</param>
public Hashtable GetCapsDetails(bool excludeSeed, List<string> requestedCaps)
{
Hashtable caps = new Hashtable();
string protocol = "http://";
if (m_useSSL)
protocol = "https://";
string baseUrl = protocol + m_httpListenerHostName + ":" + m_httpListenerPort.ToString();
lock (m_capsHandlers)
{
foreach (string capsName in m_capsHandlers.Keys)
{
if (excludeSeed && "SEED" == capsName)
continue;
if (requestedCaps != null && !requestedCaps.Contains(capsName))
continue;
caps[capsName] = baseUrl + m_capsHandlers[capsName].Path;
}
}
return caps;
}
/// <summary>
/// Returns a copy of the dictionary of all the HTTP cap handlers
/// </summary>
/// <returns>
/// The dictionary copy. The key is the capability name, the value is the HTTP handler.
/// </returns>
public Dictionary<string, IRequestHandler> GetCapsHandlers()
{
lock (m_capsHandlers)
return new Dictionary<string, IRequestHandler>(m_capsHandlers);
}
}
}
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