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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.IO;
using System.Net;
using System.Reflection;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
using log4net;
namespace OpenSim.Framework.Servers.HttpServer
{
public class SynchronousRestFormsRequester
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
/// <summary>
/// Perform a synchronous REST request.
/// </summary>
/// <param name="verb"></param>
/// <param name="requestUrl"></param>
/// <param name="obj"> </param>
/// <returns></returns>
///
/// <exception cref="System.Net.WebException">Thrown if we encounter a network issue while posting
/// the request. You'll want to make sure you deal with this as they're not uncommon</exception>
public static string MakeRequest(string verb, string requestUrl, string obj)
{
WebRequest request = WebRequest.Create(requestUrl);
request.Method = verb;
if ((verb == "POST") || (verb == "PUT"))
{
request.ContentType = "text/www-form-urlencoded";
MemoryStream buffer = new MemoryStream();
int length = 0;
using (StreamWriter writer = new StreamWriter(buffer))
{
writer.Write(obj);
writer.Flush();
}
length = (int)obj.Length;
request.ContentLength = length;
Stream requestStream = null;
try
{
requestStream = request.GetRequestStream();
requestStream.Write(buffer.ToArray(), 0, length);
}
catch (Exception e)
{
m_log.DebugFormat("[FORMS]: exception occured on sending request to {0}: " + e.ToString(), requestUrl);
}
finally
{
// If this is closed, it will be disposed internally,
// but the above write is asynchronous and may hit after
// we're through here. So the thread handling that will
// throw and put us back into the catch above. Isn't
// .NET great?
//if (requestStream != null)
// requestStream.Close();
// Let's not close this
//buffer.Close();
}
}
string respstring = String.Empty;
try
{
using (WebResponse resp = request.GetResponse())
{
if (resp.ContentLength > 0)
{
Stream respStream = null;
try
{
respStream = resp.GetResponseStream();
using (StreamReader reader = new StreamReader(respStream))
{
respstring = reader.ReadToEnd();
}
}
catch (Exception e)
{
m_log.DebugFormat("[FORMS]: exception occured on receiving reply " + e.ToString());
}
finally
{
if (respStream != null)
respStream.Close();
}
}
}
}
catch (System.InvalidOperationException)
{
// This is what happens when there is invalid XML
m_log.DebugFormat("[FORMS]: InvalidOperationException on receiving request");
}
return respstring;
}
}
}
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