LSLEditor/trunk/Helpers/XMLRPC.cs

318 lines
9.5 KiB
C#

// <copyright file="gpl-2.0.txt">
// ORIGINAL CODE BASE IS Copyright (C) 2006-2010 by Alphons van der Heijden.
// The code was donated on 2010-04-28 by Alphons van der Heijden to Brandon 'Dimentox Travanti' Husbands &
// Malcolm J. Kudra, who in turn License under the GPLv2 in agreement with Alphons van der Heijden's wishes.
//
// The community would like to thank Alphons for all of his hard work, blood sweat and tears. Without his work
// the community would be stuck with crappy editors.
//
// The source code in this file ("Source Code") is provided by The LSLEditor Group to you under the terms of the GNU
// General Public License, version 2.0 ("GPL"), unless you have obtained a separate licensing agreement ("Other
// License"), formally executed by you and The LSLEditor Group.
// Terms of the GPL can be found in the gplv2.txt document.
//
// GPLv2 Header
// ************
// LSLEditor, a External editor for the LSL Language.
// Copyright (C) 2010 The LSLEditor Group.
//
// This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any
// later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
// Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
// ********************************************************************************************************************
// The above copyright notice and this permission notice shall be included in copies or substantial portions of the
// Software.
// ********************************************************************************************************************
// </copyright>
//
// <summary>
//
//
// </summary>
using System;
using System.Xml;
using System.Net;
using System.Threading;
namespace LSLEditor.Helpers
{
class XmlRpcRequestEventArgs : EventArgs
{
public SecondLife.key channel;
public SecondLife.key message_id;
public SecondLife.String sData;
public SecondLife.integer iData;
public SecondLife.String sender;
}
class XMLRPC
{
private HttpListener listener;
private Thread thread;
private bool blnRunning;
private WebRequest request;
public SecondLife.key guid;
public HttpListenerContext context;
public delegate void RequestEventHandler(object sender, XmlRpcRequestEventArgs e);
public event RequestEventHandler OnReply;
public event RequestEventHandler OnRequest;
public string Prefix;
public XMLRPC()
{
this.guid = SecondLife.NULL_KEY;
}
public SecondLife.key OpenChannel(int intChannel)
{
if (!HttpListener.IsSupported)
return this.guid;
// Yes, it works
this.guid = new SecondLife.key(Guid.NewGuid());
// Create a listener.
listener = new HttpListener();
// Add the prefix.
int intPort = 50888 + intChannel;
Prefix = "http://localhost:" + intPort + "/";
listener.Prefixes.Add(Prefix);
listener.Start();
blnRunning = true;
thread = new Thread(new ThreadStart(Worker));
thread.Name = "Worker";
thread.Start();
return this.guid;
}
private XmlRpcRequestEventArgs DecodeRequest(System.IO.Stream stream)
{
XmlRpcRequestEventArgs e = new XmlRpcRequestEventArgs();
e.sender = "";
e.message_id = SecondLife.NULL_KEY;
/*
<?xml version="1.0"?>
<methodCall>
<methodName>llRemoteData</methodName>
<params>
<param>
<value>
<struct>
<member>
<name>Channel</name>
<value><string>4a250e12-c02e-94fb-6d2f-13529cbaad63</string></value>
</member>
<member>
<name>IntValue</name>
<value><int>0</int></value>
</member>
<member>
<name>StringValue</name>
<value><string>test</string></value>
</member>
</struct>
</value>
</param>
</params>
</methodCall>
*/
XmlDocument xml = new XmlDocument();
xml.Load(stream);
XmlNode methodCall = xml.SelectSingleNode("/methodCall");
if (methodCall == null)
return e;
XmlNode methodName = methodCall.SelectSingleNode("./methodName");
if (methodName == null)
return e;
if (methodName.InnerText != "llRemoteData")
return e;
foreach (XmlNode xmlMember in methodCall.SelectNodes("./params/param/value/struct/member"))
{
string strName = xmlMember.SelectSingleNode("./name").InnerText;
string strValue = xmlMember.SelectSingleNode("./value").InnerText;
switch (strName)
{
case "Channel":
e.channel = new SecondLife.key(strValue);
break;
case "StringValue":
e.sData = strValue;
break;
case "IntValue":
int iData;
int.TryParse(strValue, out iData);
e.iData = iData;
break;
default:
break;
}
}
return e;
}
private void Worker()
{
XmlRpcRequestEventArgs e;
while (blnRunning)
{
// Note: The GetContext method blocks while waiting for a request.
try
{
context = listener.GetContext();
e = DecodeRequest(context.Request.InputStream);
if (OnRequest != null)
OnRequest(this, e);
}
catch (HttpListenerException)
{
}
catch (ThreadAbortException)
{
}
catch (Exception exception)
{
System.Windows.Forms.MessageBox.Show("RPC Error:" + exception.Message, "Oops...");
}
}
}
public void RemoteDataReply(SecondLife.key channel, SecondLife.key message_id, string sData, int iData)
{
// Obtain a response object.
HttpListenerResponse response = context.Response;
// Construct a response.
string responseString = string.Format(@"<?xml version=""1.0""?>
<methodResponse>
<params>
<param>
<value>
<struct>
<member>
<name>Channel</name>
<value><string>{0}</string></value>
</member>
<member>
<name>StringValue</name>
<value><string>{1}</string></value>
</member>
<member>
<name>IntValue</name>
<value><int>{2}</int></value>
</member>
</struct>
</value>
</param>
</params>
</methodResponse>", channel.ToString(),sData,iData);
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
response.ContentType = "text/xml";
System.IO.Stream output = response.OutputStream;
output.Write(buffer, 0, buffer.Length);
// You must close the output stream.
output.Close();
}
public void CloseChannel()
{
blnRunning = false;
if(listener!=null)
listener.Stop();
if (thread != null)
{
thread.Abort();
bool succes = thread.Join(1000);
}
thread = null;
listener = null;
}
public SecondLife.key SendRemoteData(SecondLife.key channel, string dest, int iData, string sData)
{
this.guid = new SecondLife.key(Guid.NewGuid());
// Construct a request.
string requestString = string.Format(@"<?xml version=""1.0""?>
<methodCall>
<methodName>llRemoteData</methodName>
<params>
<param>
<value>
<struct>
<member>
<name>Channel</name>
<value><string>{0}</string></value>
</member>
<member>
<name>IntValue</name>
<value><int>{1}</int></value>
</member>
<member>
<name>StringValue</name>
<value><string>{2}</string></value>
</member>
</struct>
</value>
</param>
</params>
</methodCall>", channel.ToString(), iData, sData);
request = WebRequest.Create(dest);
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(requestString);
// Get a response stream and write the response to it.
request.ContentLength = buffer.Length;
request.ContentType = "text/xml";
System.IO.Stream requestStream = request.GetRequestStream();
requestStream.Write(buffer, 0, buffer.Length);
// You must close the request stream.
requestStream.Close();
thread = new Thread(new ThreadStart(WaitOnResponse));
thread.Name = "WaitOnResponse";
thread.Start();
return this.guid;
}
private void WaitOnResponse()
{
Thread.Sleep(100);
WebResponse response = request.GetResponse();
XmlRpcRequestEventArgs e = DecodeRequest(response.GetResponseStream());
// yes!!
e.message_id = this.guid;
if (OnReply != null)
OnReply(this, e);
}
}
}