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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.Net;
using System.Net.Sockets;
using System.Reflection;
using System.Text;
using System.IO;
using OpenMetaverse.StructuredData;
using OpenMetaverse;
using log4net;
namespace OpenSim.Framework.Servers.HttpServer
{
/// <summary>
/// Json rpc request manager.
/// </summary>
public class JsonRpcRequestManager
{
static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public JsonRpcRequestManager()
{
}
/// <summary>
/// Sends json-rpc request with a serializable type.
/// </summary>
/// <returns>
/// OSD Map.
/// </returns>
/// <param name='parameters'>
/// Serializable type .
/// </param>
/// <param name='method'>
/// Json-rpc method to call.
/// </param>
/// <param name='uri'>
/// URI of json-rpc service.
/// </param>
/// <param name='jsonId'>
/// Id for our call.
/// </param>
public bool JsonRpcRequest(ref object parameters, string method, string uri, string jsonId)
{
if (jsonId == null)
throw new ArgumentNullException("jsonId");
if (uri == null)
throw new ArgumentNullException("uri");
if (method == null)
throw new ArgumentNullException("method");
if (parameters == null)
throw new ArgumentNullException("parameters");
OSDMap request = new OSDMap();
request.Add("jsonrpc", OSD.FromString("2.0"));
request.Add("id", OSD.FromString(jsonId));
request.Add("method", OSD.FromString(method));
request.Add("params", OSD.SerializeMembers(parameters));
OSDMap response;
try
{
response = WebUtil.PostToService(uri, request, 10000, true);
}
catch (Exception e)
{
m_log.Debug(string.Format("JsonRpc request '{0}' failed", method), e);
return false;
}
if (!response.ContainsKey("_Result"))
{
m_log.DebugFormat("JsonRpc request '{0}' returned an invalid response: {1}",
method, OSDParser.SerializeJsonString(response));
return false;
}
response = (OSDMap)response["_Result"];
OSD data;
if (response.ContainsKey("error"))
{
data = response["error"];
m_log.DebugFormat("JsonRpc request '{0}' returned an error: {1}",
method, OSDParser.SerializeJsonString(data));
return false;
}
if (!response.ContainsKey("result"))
{
m_log.DebugFormat("JsonRpc request '{0}' returned an invalid response: {1}",
method, OSDParser.SerializeJsonString(response));
return false;
}
data = response["result"];
OSD.DeserializeMembers(ref parameters, (OSDMap)data);
return true;
}
/// <summary>
/// Sends json-rpc request with OSD parameter.
/// </summary>
/// <returns>
/// The rpc request.
/// </returns>
/// <param name='data'>
/// data - incoming as parameters, outgoing as result/error
/// </param>
/// <param name='method'>
/// Json-rpc method to call.
/// </param>
/// <param name='uri'>
/// URI of json-rpc service.
/// </param>
/// <param name='jsonId'>
/// If set to <c>true</c> json identifier.
/// </param>
public bool JsonRpcRequest(ref OSD data, string method, string uri, string jsonId)
{
if (string.IsNullOrEmpty(jsonId))
jsonId = UUID.Random().ToString();
OSDMap request = new OSDMap();
request.Add("jsonrpc", OSD.FromString("2.0"));
request.Add("id", OSD.FromString(jsonId));
request.Add("method", OSD.FromString(method));
request.Add("params", data);
OSDMap response;
try
{
response = WebUtil.PostToService(uri, request, 10000, true);
}
catch (Exception e)
{
m_log.Debug(string.Format("JsonRpc request '{0}' failed", method), e);
return false;
}
if (!response.ContainsKey("_Result"))
{
m_log.DebugFormat("JsonRpc request '{0}' returned an invalid response: {1}",
method, OSDParser.SerializeJsonString(response));
return false;
}
response = (OSDMap)response["_Result"];
if (response.ContainsKey("error"))
{
data = response["error"];
m_log.DebugFormat("JsonRpc request '{0}' returned an error: {1}",
method, OSDParser.SerializeJsonString(data));
return false;
}
data = response;
return true;
}
}
}
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