Files
libremetaverse/LibreMetaverse/Capabilities/CapsClient.cs
2024-01-15 14:41:36 -06:00

350 lines
12 KiB
C#

/*
* Copyright (c) 2006-2016, openmetaverse.co
* Copyright (c) 2019-2024, Sjofn, LLC.
* All rights reserved.
*
* - 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.
* - Neither the name of the openmetaverse.co 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR 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.Security.Cryptography.X509Certificates;
using System.Threading;
using OpenMetaverse.StructuredData;
namespace OpenMetaverse.Http
{
[Obsolete("Obsolete due to reliance on HttpWebRequest. Use LibreMetaverse.HttpCapsClient instead.")]
public class CapsClient
{
public delegate void DownloadProgressCallback(CapsClient client, int bytesReceived, int totalBytesToReceive);
public delegate void CompleteCallback(CapsClient client, OSD result, Exception error);
public event DownloadProgressCallback OnDownloadProgress;
public event CompleteCallback OnComplete;
public object UserData;
protected Uri _Address;
protected string _CapName;
protected byte[] _PostData;
protected X509Certificate2 _ClientCert;
protected string _ContentType;
protected HttpWebRequest _Request;
protected OSD _Response;
protected AutoResetEvent _ResponseEvent = new AutoResetEvent(false);
#region Constructors
/// <summary>
/// CapsClient Ctor
/// </summary>
/// <param name="capability"><seealso cref="Uri"/> for simulator capability</param>
public CapsClient(Uri capability)
: this(capability, null, null)
{
}
/// <summary>
/// CapsClient Ctor with name
/// </summary>
/// <param name="capability"><seealso cref="Uri"/> for simulator capability</param>
/// <param name="cap_name">Simulator capability name</param>
public CapsClient(Uri capability, string cap_name)
: this(capability, cap_name, null)
{
}
/// <summary>
/// CapsClient Ctor with name and certificate
/// </summary>
/// <param name="capability"><seealso cref="Uri"/> for simulator capability</param>
/// <param name="cap_name">Simulator capability name</param>
/// <param name="clientCert"><seealso cref="X509Certificate2"/> client certificate</param>
public CapsClient(Uri capability, string cap_name, X509Certificate2 clientCert)
{
_Address = capability;
_CapName = cap_name;
_ClientCert = clientCert;
}
#endregion Constructors
#region GET requests
public void GetRequestAsync(int msTimeout)
{
if (_Request != null)
{
_Request.Abort();
_Request = null;
}
_Request = CapsBase.GetStringAsync(_Address, _ClientCert, msTimeout, DownloadProgressHandler,
RequestCompletedHandler);
}
public OSD GetRequest(int msTimeout)
{
GetRequestAsync(msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
#endregion GET requests
#region POST requests
public void PostRequestAsync(OSD data, OSDFormat format, int msTimeout)
{
serializeData(data, format, out byte[] serializedData, out string contentType);
PostRequestAsync(serializedData, contentType, msTimeout);
}
public OSD PostRequest(OSD data, OSDFormat format, int msTimeout)
{
PostRequestAsync(data, format, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
public void PostRequestAsync(byte[] postData, string contentType, int msTimeout)
{
_PostData = postData;
_ContentType = contentType;
if (_Request != null)
{
_Request.Abort();
_Request = null;
}
_Request = CapsBase.PostDataAsync(_Address, _ClientCert, contentType, postData, msTimeout,
null, DownloadProgressHandler, RequestCompletedHandler);
}
public OSD PostRequest(byte[] postData, string contentType, int msTimeout)
{
PostRequestAsync(postData, contentType, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
#endregion POST requests
#region PUT requests
public void PutRequestAsync(OSD data, OSDFormat format, int msTimeout)
{
serializeData(data, format, out byte[] serializedData, out string contentType);
PutRequestAsync(serializedData, contentType, msTimeout);
}
public OSD PutRequest(OSD data, OSDFormat format, int msTimeout)
{
PutRequestAsync(data, format, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
public void PutRequestAsync(byte[] postData, string contentType, int msTimeout)
{
_PostData = postData;
_ContentType = contentType;
if (_Request != null)
{
_Request.Abort();
_Request = null;
}
_Request = CapsBase.PutDataAsync(_Address, _ClientCert, contentType, postData, msTimeout,
null, DownloadProgressHandler, RequestCompletedHandler);
}
public OSD PutRequest(byte[] postData, string contentType, int msTimeout)
{
PutRequestAsync(postData, contentType, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
#endregion PUT requests
#region PATCH requests
public void PatchRequestAsync(OSD data, OSDFormat format, int msTimeout)
{
serializeData(data, format, out byte[] serializedData, out string contentType);
PatchRequestAsync(serializedData, contentType, msTimeout);
}
public OSD PatchRequest(OSD data, OSDFormat format, int msTimeout)
{
PatchRequestAsync(data, format, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
public void PatchRequestAsync(byte[] postData, string contentType, int msTimeout)
{
_PostData = postData;
_ContentType = contentType;
if (_Request != null)
{
_Request.Abort();
_Request = null;
}
_Request = CapsBase.PatchDataAsync(_Address, _ClientCert, contentType, postData, msTimeout,
null, DownloadProgressHandler, RequestCompletedHandler);
}
public OSD PatchRequest(byte[] postData, string contentType, int msTimeout)
{
PatchRequestAsync(postData, contentType, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
#endregion PATCH requests
#region DELETE requests
public void DeleteRequestAsync(OSD data, OSDFormat format, int msTimeout)
{
serializeData(data, format, out byte[] serializedData, out string contentType);
DeleteRequestAsync(serializedData, contentType, msTimeout);
}
public OSD DeleteRequest(OSD data, OSDFormat format, int msTimeout)
{
DeleteRequestAsync(data, format, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
public void DeleteRequestAsync(byte[] postData, string contentType, int msTimeout)
{
_PostData = postData;
_ContentType = contentType;
if (_Request != null)
{
_Request.Abort();
_Request = null;
}
_Request = CapsBase.DeleteDataAsync(_Address, _ClientCert, contentType, postData, msTimeout,
null, DownloadProgressHandler, RequestCompletedHandler);
}
public OSD DeleteRequest(byte[] postData, string contentType, int msTimeout)
{
DeleteRequestAsync(postData, contentType, msTimeout);
_ResponseEvent.WaitOne(msTimeout, false);
return _Response;
}
#endregion DELETE requests
public void Cancel()
{
_Request?.Abort();
}
void DownloadProgressHandler(HttpWebRequest request, HttpWebResponse response, int bytesReceived, int totalBytesToReceive)
{
_Request = request;
if (OnDownloadProgress != null)
{
try { OnDownloadProgress(this, bytesReceived, totalBytesToReceive); }
catch (Exception ex) { Logger.Log(ex.Message, Helpers.LogLevel.Error, ex); }
}
}
void RequestCompletedHandler(HttpWebRequest request, HttpWebResponse response, byte[] responseData, Exception error)
{
_Request = request;
OSD result = null;
if (responseData != null)
{
try { result = OSDParser.Deserialize(responseData); }
catch (Exception ex) { error = ex; }
}
FireCompleteCallback(result, error);
}
/// <summary>
/// Serializes OSD data for http request
/// </summary>
/// <param name="data"><seealso cref="OSD"/>formatted data for input</param>
/// <param name="format">Format to serialize data to</param>
/// <param name="serializedData">Output serialized data as byte array</param>
/// <param name="contentType">content-type string of serialized data</param>
private void serializeData(OSD data, OSDFormat format, out byte[] serializedData, out string contentType)
{
switch (format)
{
case OSDFormat.Xml:
serializedData = OSDParser.SerializeLLSDXmlBytes(data);
contentType = "application/llsd+xml";
break;
case OSDFormat.Binary:
serializedData = OSDParser.SerializeLLSDBinary(data);
contentType = "application/llsd+binary";
break;
case OSDFormat.Json:
default:
serializedData = System.Text.Encoding.UTF8.GetBytes(OSDParser.SerializeJsonString(data));
contentType = "application/llsd+json";
break;
}
}
private void FireCompleteCallback(OSD result, Exception error)
{
CompleteCallback callback = OnComplete;
if (callback != null)
{
try
{
callback(this, result, error);
}
catch (Exception ex)
{
Logger.DebugLog($"CapsBase.GetResponse() {_CapName} : {ex.Message}");
Logger.Log(ex.Message, Helpers.LogLevel.Error, ex);
}
}
_Response = result;
_ResponseEvent.Set();
}
}
}