From ec0d2c28fa04102ecbad4c5660efecbb970201dd Mon Sep 17 00:00:00 2001 From: Melanie Thielker Date: Mon, 4 May 2009 20:19:21 +0000 Subject: Committing the changed tree --- .../Servers/HttpServer/RestSessionService.cs | 291 +++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100644 OpenSim/Framework/Servers/HttpServer/RestSessionService.cs (limited to 'OpenSim/Framework/Servers/HttpServer/RestSessionService.cs') diff --git a/OpenSim/Framework/Servers/HttpServer/RestSessionService.cs b/OpenSim/Framework/Servers/HttpServer/RestSessionService.cs new file mode 100644 index 0000000..f5e4248 --- /dev/null +++ b/OpenSim/Framework/Servers/HttpServer/RestSessionService.cs @@ -0,0 +1,291 @@ +/* + * 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 RestSessionObject + { + private string sid; + private string aid; + private TRequest request_body; + + public string SessionID + { + get { return sid; } + set { sid = value; } + } + + public string AvatarID + { + get { return aid; } + set { aid = value; } + } + + public TRequest Body + { + get { return request_body; } + set { request_body = value; } + } + } + + public class SynchronousRestSessionObjectPoster + { + public static TResponse BeginPostObject(string verb, string requestUrl, TRequest obj, string sid, string aid) + { + RestSessionObject sobj = new RestSessionObject(); + sobj.SessionID = sid; + sobj.AvatarID = aid; + sobj.Body = obj; + + Type type = typeof(RestSessionObject); + + WebRequest request = WebRequest.Create(requestUrl); + request.Method = verb; + request.ContentType = "text/xml"; + + MemoryStream buffer = new MemoryStream(); + + XmlWriterSettings settings = new XmlWriterSettings(); + settings.Encoding = Encoding.UTF8; + + using (XmlWriter writer = XmlWriter.Create(buffer, settings)) + { + XmlSerializer serializer = new XmlSerializer(type); + serializer.Serialize(writer, sobj); + writer.Flush(); + } + + int length = (int)buffer.Length; + request.ContentLength = length; + + Stream requestStream = request.GetRequestStream(); + requestStream.Write(buffer.ToArray(), 0, length); + TResponse deserial = default(TResponse); + using (WebResponse resp = request.GetResponse()) + { + XmlSerializer deserializer = new XmlSerializer(typeof(TResponse)); + deserial = (TResponse)deserializer.Deserialize(resp.GetResponseStream()); + } + return deserial; + } + } + + public class RestSessionObjectPosterResponse + { + public ReturnResponse ResponseCallback; + + public void BeginPostObject(string requestUrl, TRequest obj, string sid, string aid) + { + BeginPostObject("POST", requestUrl, obj, sid, aid); + } + + public void BeginPostObject(string verb, string requestUrl, TRequest obj, string sid, string aid) + { + RestSessionObject sobj = new RestSessionObject(); + sobj.SessionID = sid; + sobj.AvatarID = aid; + sobj.Body = obj; + + Type type = typeof(RestSessionObject); + + WebRequest request = WebRequest.Create(requestUrl); + request.Method = verb; + request.ContentType = "text/xml"; + request.Timeout = 10000; + + MemoryStream buffer = new MemoryStream(); + + XmlWriterSettings settings = new XmlWriterSettings(); + settings.Encoding = Encoding.UTF8; + + using (XmlWriter writer = XmlWriter.Create(buffer, settings)) + { + XmlSerializer serializer = new XmlSerializer(type); + serializer.Serialize(writer, sobj); + writer.Flush(); + } + + int length = (int)buffer.Length; + request.ContentLength = length; + + Stream requestStream = request.GetRequestStream(); + requestStream.Write(buffer.ToArray(), 0, length); + requestStream.Close(); + // IAsyncResult result = request.BeginGetResponse(AsyncCallback, request); + request.BeginGetResponse(AsyncCallback, request); + } + + private void AsyncCallback(IAsyncResult result) + { + WebRequest request = (WebRequest)result.AsyncState; + using (WebResponse resp = request.EndGetResponse(result)) + { + TResponse deserial; + XmlSerializer deserializer = new XmlSerializer(typeof(TResponse)); + Stream stream = resp.GetResponseStream(); + + // This is currently a bad debug stanza since it gobbles us the response... + // StreamReader reader = new StreamReader(stream); + // m_log.DebugFormat("[REST OBJECT POSTER RESPONSE]: Received {0}", reader.ReadToEnd()); + + deserial = (TResponse)deserializer.Deserialize(stream); + + if (deserial != null && ResponseCallback != null) + { + ResponseCallback(deserial); + } + } + } + } + + public delegate bool CheckIdentityMethod(string sid, string aid); + + public class RestDeserialiseSecureHandler : BaseRequestHandler, IStreamHandler + where TRequest : new() + { + private static readonly ILog m_log + = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); + + private RestDeserialiseMethod m_method; + private CheckIdentityMethod m_smethod; + + public RestDeserialiseSecureHandler( + string httpMethod, string path, + RestDeserialiseMethod method, CheckIdentityMethod smethod) + : base(httpMethod, path) + { + m_smethod = smethod; + m_method = method; + } + + public void Handle(string path, Stream request, Stream responseStream, + OSHttpRequest httpRequest, OSHttpResponse httpResponse) + { + RestSessionObject deserial = default(RestSessionObject); + bool fail = false; + + using (XmlTextReader xmlReader = new XmlTextReader(request)) + { + try + { + XmlSerializer deserializer = new XmlSerializer(typeof(RestSessionObject)); + deserial = (RestSessionObject)deserializer.Deserialize(xmlReader); + } + catch (Exception e) + { + m_log.Error("[REST]: Deserialization problem. Ignoring request. " + e); + fail = true; + } + } + + TResponse response = default(TResponse); + if (!fail && m_smethod(deserial.SessionID, deserial.AvatarID)) + { + response = m_method(deserial.Body); + } + + using (XmlWriter xmlWriter = XmlTextWriter.Create(responseStream)) + { + XmlSerializer serializer = new XmlSerializer(typeof(TResponse)); + serializer.Serialize(xmlWriter, response); + } + } + } + + public delegate bool CheckTrustedSourceMethod(IPEndPoint peer); + + public class RestDeserialiseTrustedHandler : BaseRequestHandler, IStreamHandler + where TRequest : new() + { + private static readonly ILog m_log + = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); + + /// + /// The operation to perform once trust has been established. + /// + /// + /// + /// + /// + private RestDeserialiseMethod m_method; + + /// + /// The method used to check whether a request is trusted. + /// + private CheckTrustedSourceMethod m_tmethod; + + public RestDeserialiseTrustedHandler(string httpMethod, string path, RestDeserialiseMethod method, CheckTrustedSourceMethod tmethod) + : base(httpMethod, path) + { + m_tmethod = tmethod; + m_method = method; + } + + public void Handle(string path, Stream request, Stream responseStream, + OSHttpRequest httpRequest, OSHttpResponse httpResponse) + { + TRequest deserial = default(TRequest); + bool fail = false; + + using (XmlTextReader xmlReader = new XmlTextReader(request)) + { + try + { + XmlSerializer deserializer = new XmlSerializer(typeof(TRequest)); + deserial = (TRequest)deserializer.Deserialize(xmlReader); + } + catch (Exception e) + { + m_log.Error("[REST]: Deserialization problem. Ignoring request. " + e); + fail = true; + } + } + + TResponse response = default(TResponse); + if (!fail && m_tmethod(httpRequest.RemoteIPEndPoint)) + { + response = m_method(deserial); + } + + using (XmlWriter xmlWriter = XmlTextWriter.Create(responseStream)) + { + XmlSerializer serializer = new XmlSerializer(typeof(TResponse)); + serializer.Serialize(xmlWriter, response); + } + } + } + +} -- cgit v1.1