Merge branch 'master' of melanie@opensimulator.org:/var/git/opensim

7 files changed, 661 insertions, 73 deletions

diff --git a/OpenSim/Framework/ChildAgentDataUpdate.cs b/OpenSim/Framework/ChildAgentDataUpdate.cs
index fee71f0..a1ac84c 100644
--- a/OpenSim/Framework/ChildAgentDataUpdate.cs
+++ b/OpenSim/Framework/ChildAgentDataUpdate.cs
@@ -41,14 +41,14 @@ namespace OpenSim.Framework
         public Guid AgentID;
         public bool alwaysrun;
         public float AVHeight;
-        public sLLVector3 cameraPosition;
+        public Vector3 cameraPosition;
         public float drawdistance;
         public float godlevel;
         public uint GroupAccess;
-        public sLLVector3 Position;
+        public Vector3 Position;
         public ulong regionHandle;
         public byte[] throttles;
-        public sLLVector3 Velocity;
+        public Vector3 Velocity;
 
         public ChildAgentDataUpdate()
         {
@@ -177,14 +177,13 @@ namespace OpenSim.Framework
             Size = new Vector3();
             Size.Z = cAgent.AVHeight;
 
-            Center = new Vector3(cAgent.cameraPosition.x, cAgent.cameraPosition.y, cAgent.cameraPosition.z);
+            Center = cAgent.cameraPosition;
             Far = cAgent.drawdistance;
-            Position = new Vector3(cAgent.Position.x, cAgent.Position.y, cAgent.Position.z);
+            Position = cAgent.Position;
             RegionHandle = cAgent.regionHandle;
             Throttles = cAgent.throttles;
-            Velocity = new Vector3(cAgent.Velocity.x, cAgent.Velocity.y, cAgent.Velocity.z);
+            Velocity = cAgent.Velocity;
         }
-
     }
 
     public class AgentGroupData
diff --git a/OpenSim/Framework/MultipartForm.cs b/OpenSim/Framework/MultipartForm.cs
new file mode 100644
index 0000000..8ba6d22
--- /dev/null
+++ b/OpenSim/Framework/MultipartForm.cs
@@ -0,0 +1,117 @@
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.IO;
+using System.Text;
+
+namespace OpenSim.Framework
+{
+    public static class MultipartForm
+    {
+        #region Helper Classes
+
+        public abstract class Element
+        {
+            public string Name;
+        }
+
+        public class File : Element
+        {
+            public string Filename;
+            public string ContentType;
+            public byte[] Data;
+
+            public File(string name, string filename, string contentType, byte[] data)
+            {
+                Name = name;
+                Filename = filename;
+                ContentType = contentType;
+                Data = data;
+            }
+        }
+
+        public class Parameter : Element
+        {
+            public string Value;
+
+            public Parameter(string name, string value)
+            {
+                Name = name;
+                Value = value;
+            }
+        }
+
+        #endregion Helper Classes
+
+        public static HttpWebResponse Post(HttpWebRequest request, List<Element> postParameters)
+        {
+            string boundary = Boundary();
+
+            // Set up the request properties
+            request.Method = "POST";
+            request.ContentType = "multipart/form-data; boundary=" + boundary;
+
+            #region Stream Writing
+
+            using (MemoryStream formDataStream = new MemoryStream())
+            {
+                foreach (var param in postParameters)
+                {
+                    if (param is File)
+                    {
+                        File file = (File)param;
+
+                        // Add just the first part of this param, since we will write the file data directly to the Stream
+                        string header = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\";\r\nContent-Type: {3}\r\n\r\n",
+                            boundary,
+                            file.Name,
+                            !String.IsNullOrEmpty(file.Filename) ? file.Filename : "tempfile",
+                            file.ContentType);
+
+                        formDataStream.Write(Encoding.UTF8.GetBytes(header), 0, header.Length);
+                        formDataStream.Write(file.Data, 0, file.Data.Length);
+                    }
+                    else
+                    {
+                        Parameter parameter = (Parameter)param;
+
+                        string postData = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n",
+                            boundary,
+                            parameter.Name,
+                            parameter.Value);
+                        formDataStream.Write(Encoding.UTF8.GetBytes(postData), 0, postData.Length);
+                    }
+                }
+
+                // Add the end of the request
+                byte[] footer = Encoding.UTF8.GetBytes("\r\n--" + boundary + "--\r\n");
+                formDataStream.Write(footer, 0, footer.Length);
+
+                request.ContentLength = formDataStream.Length;
+
+                // Copy the temporary stream to the network stream
+                formDataStream.Seek(0, SeekOrigin.Begin);
+                using (Stream requestStream = request.GetRequestStream())
+                    formDataStream.CopyTo(requestStream, (int)formDataStream.Length);
+            }
+
+            #endregion Stream Writing
+
+            return request.GetResponse() as HttpWebResponse;
+        }
+
+        private static string Boundary()
+        {
+            Random rnd = new Random();
+            string formDataBoundary = String.Empty;
+
+            while (formDataBoundary.Length < 15)
+                formDataBoundary = formDataBoundary + rnd.Next();
+
+            formDataBoundary = formDataBoundary.Substring(0, 15);
+            formDataBoundary = "-----------------------------" + formDataBoundary;
+
+            return formDataBoundary;
+        }
+    }
+}
diff --git a/OpenSim/Framework/RegionCommsListener.cs b/OpenSim/Framework/RegionCommsListener.cs
index 718a556..3e0955d 100644
--- a/OpenSim/Framework/RegionCommsListener.cs
+++ b/OpenSim/Framework/RegionCommsListener.cs
@@ -45,7 +45,7 @@ namespace OpenSim.Framework
         private GenericCall2 handlerExpectChildAgent = null; // OnExpectChildAgent;
         private ExpectUserDelegate handlerExpectUser = null; // OnExpectUser
         private UpdateNeighbours handlerNeighboursUpdate = null; // OnNeighboursUpdate;
-        private PrimCrossing handlerPrimCrossingIntoRegion = null; // OnPrimCrossingIntoRegion;
+//        private PrimCrossing handlerPrimCrossingIntoRegion = null; // OnPrimCrossingIntoRegion;
         private LogOffUser handlerLogOffUser = null;
         private GetLandData handlerGetLandData = null;
 
diff --git a/OpenSim/Framework/RegionInfo.cs b/OpenSim/Framework/RegionInfo.cs
index ac38ac2..5d63da7 100644
--- a/OpenSim/Framework/RegionInfo.cs
+++ b/OpenSim/Framework/RegionInfo.cs
@@ -351,7 +351,7 @@ namespace OpenSim.Framework
 
         private void ReadNiniConfig(IConfigSource source, string name)
         {
-            bool creatingNew = false;
+//            bool creatingNew = false;
 
             if (source.Configs.Count == 0)
             {
@@ -368,7 +368,7 @@ namespace OpenSim.Framework
 
                 source.AddConfig(name);
 
-                creatingNew = true;
+//                creatingNew = true;
             }
 
             if (name == String.Empty)
@@ -378,7 +378,7 @@ namespace OpenSim.Framework
             {
                 source.AddConfig(name);
 
-                creatingNew = true;
+//                creatingNew = true;
             }
 
             IConfig config = source.Configs[name];
@@ -397,15 +397,8 @@ namespace OpenSim.Framework
 
             RegionID = new UUID(regionUUID);
             originRegionID = RegionID; // What IS this?!
-
-            
-            // Region name
-            //
+          
             RegionName = name;
-
-            
-            // Region location
-            //
             string location = config.GetString("Location", String.Empty);
 
             if (location == String.Empty)
@@ -421,12 +414,9 @@ namespace OpenSim.Framework
 
 
             // Datastore (is this implemented? Omitted from example!)
-            //
             DataStore = config.GetString("Datastore", String.Empty);
 
-
             // Internal IP
-            //
             IPAddress address;
             
             if (config.Contains("InternalAddress"))
diff --git a/OpenSim/Framework/UntrustedWebRequest.cs b/OpenSim/Framework/UntrustedWebRequest.cs
new file mode 100644
index 0000000..1af7c41
--- /dev/null
+++ b/OpenSim/Framework/UntrustedWebRequest.cs
@@ -0,0 +1,203 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Net;
+using System.Net.Security;
+using System.Text;
+using log4net;
+
+namespace OpenSim.Framework
+{
+    /// <summary>
+    /// Used for requests to untrusted endpoints that may potentially be
+    /// malicious
+    /// </summary>
+    public static class UntrustedHttpWebRequest
+    {
+        /// <summary>Setting this to true will allow HTTP connections to localhost</summary>
+        private const bool DEBUG = true;
+
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static readonly ICollection<string> allowableSchemes = new List<string> { "http", "https" };
+
+        /// <summary>
+        /// Creates an HttpWebRequest that is hardened against malicious
+        /// endpoints after ensuring the given Uri is safe to retrieve
+        /// </summary>
+        /// <param name="uri">Web location to request</param>
+        /// <returns>A hardened HttpWebRequest if the uri was determined to be safe</returns>
+        /// <exception cref="ArgumentNullException">If uri is null</exception>
+        /// <exception cref="ArgumentException">If uri is unsafe</exception>
+        public static HttpWebRequest Create(Uri uri)
+        {
+            return Create(uri, DEBUG, 1000 * 5, 1000 * 20, 10);
+        }
+
+        /// <summary>
+        /// Creates an HttpWebRequest that is hardened against malicious
+        /// endpoints after ensuring the given Uri is safe to retrieve
+        /// </summary>
+        /// <param name="uri">Web location to request</param>
+        /// <param name="allowLoopback">True to allow connections to localhost, otherwise false</param>
+        /// <param name="readWriteTimeoutMS">Read write timeout, in milliseconds</param>
+        /// <param name="timeoutMS">Connection timeout, in milliseconds</param>
+        /// <param name="maximumRedirects">Maximum number of allowed redirects</param>
+        /// <returns>A hardened HttpWebRequest if the uri was determined to be safe</returns>
+        /// <exception cref="ArgumentNullException">If uri is null</exception>
+        /// <exception cref="ArgumentException">If uri is unsafe</exception>
+        public static HttpWebRequest Create(Uri uri, bool allowLoopback, int readWriteTimeoutMS, int timeoutMS, int maximumRedirects)
+        {
+            if (uri == null)
+                throw new ArgumentNullException("uri");
+
+            if (!IsUriAllowable(uri, allowLoopback))
+                throw new ArgumentException("Uri " + uri + " was rejected");
+
+            HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(uri);
+            httpWebRequest.MaximumAutomaticRedirections = maximumRedirects;
+            httpWebRequest.ReadWriteTimeout = readWriteTimeoutMS;
+            httpWebRequest.Timeout = timeoutMS;
+            httpWebRequest.KeepAlive = false;
+
+            return httpWebRequest;
+        }
+
+        public static string PostToUntrustedUrl(Uri url, string data)
+        {
+            try
+            {
+                byte[] requestData = System.Text.Encoding.UTF8.GetBytes(data);
+
+                HttpWebRequest request = Create(url);
+                request.Method = "POST";
+                request.ContentLength = requestData.Length;
+                request.ContentType = "application/x-www-form-urlencoded";
+
+                using (Stream requestStream = request.GetRequestStream())
+                    requestStream.Write(requestData, 0, requestData.Length);
+
+                using (WebResponse response = request.GetResponse())
+                {
+                    using (Stream responseStream = response.GetResponseStream())
+                        return responseStream.GetStreamString();
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.Warn("POST to untrusted URL " + url + " failed: " + ex.Message);
+                return null;
+            }
+        }
+
+        public static string GetUntrustedUrl(Uri url)
+        {
+            try
+            {
+                HttpWebRequest request = Create(url);
+
+                using (WebResponse response = request.GetResponse())
+                {
+                    using (Stream responseStream = response.GetResponseStream())
+                        return responseStream.GetStreamString();
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.Warn("GET from untrusted URL " + url + " failed: " + ex.Message);
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Determines whether a URI is allowed based on scheme and host name.
+        /// No requireSSL check is done here
+        /// </summary>
+        /// <param name="allowLoopback">True to allow loopback addresses to be used</param>
+        /// <param name="uri">The URI to test for whether it should be allowed.</param>
+        /// <returns>
+        ///     <c>true</c> if [is URI allowable] [the specified URI]; otherwise, <c>false</c>.
+        /// </returns>
+        private static bool IsUriAllowable(Uri uri, bool allowLoopback)
+        {
+            if (!allowableSchemes.Contains(uri.Scheme))
+            {
+                m_log.WarnFormat("Rejecting URL {0} because it uses a disallowed scheme.", uri);
+                return false;
+            }
+
+            // Try to interpret the hostname as an IP address so we can test for internal
+            // IP address ranges.  Note that IP addresses can appear in many forms 
+            // (e.g. http://127.0.0.1, http://2130706433, http://0x0100007f, http://::1
+            // So we convert them to a canonical IPAddress instance, and test for all
+            // non-routable IP ranges: 10.*.*.*, 127.*.*.*, ::1
+            // Note that Uri.IsLoopback is very unreliable, not catching many of these variants.
+            IPAddress hostIPAddress;
+            if (IPAddress.TryParse(uri.DnsSafeHost, out hostIPAddress))
+            {
+                byte[] addressBytes = hostIPAddress.GetAddressBytes();
+
+                // The host is actually an IP address.
+                switch (hostIPAddress.AddressFamily)
+                {
+                    case System.Net.Sockets.AddressFamily.InterNetwork:
+                        if (!allowLoopback && (addressBytes[0] == 127 || addressBytes[0] == 10))
+                        {
+                            m_log.WarnFormat("Rejecting URL {0} because it is a loopback address.", uri);
+                            return false;
+                        }
+                        break;
+                    case System.Net.Sockets.AddressFamily.InterNetworkV6:
+                        if (!allowLoopback && IsIPv6Loopback(hostIPAddress))
+                        {
+                            m_log.WarnFormat("Rejecting URL {0} because it is a loopback address.", uri);
+                            return false;
+                        }
+                        break;
+                    default:
+                        m_log.WarnFormat("Rejecting URL {0} because it does not use an IPv4 or IPv6 address.", uri);
+                        return false;
+                }
+            }
+            else
+            {
+                // The host is given by name.  We require names to contain periods to
+                // help make sure it's not an internal address.
+                if (!allowLoopback && !uri.Host.Contains("."))
+                {
+                    m_log.WarnFormat("Rejecting URL {0} because it does not contain a period in the host name.", uri);
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /// <summary>
+        /// Determines whether an IP address is the IPv6 equivalent of "localhost/127.0.0.1".
+        /// </summary>
+        /// <param name="ip">The ip address to check.</param>
+        /// <returns>
+        ///     <c>true</c> if this is a loopback IP address; <c>false</c> otherwise.
+        /// </returns>
+        private static bool IsIPv6Loopback(IPAddress ip)
+        {
+            if (ip == null)
+                throw new ArgumentNullException("ip");
+
+            byte[] addressBytes = ip.GetAddressBytes();
+            for (int i = 0; i < addressBytes.Length - 1; i++)
+            {
+                if (addressBytes[i] != 0)
+                    return false;
+            }
+
+            if (addressBytes[addressBytes.Length - 1] != 1)
+                return false;
+
+            return true;
+        }
+    }
+}
diff --git a/OpenSim/Framework/WebUtil.cs b/OpenSim/Framework/WebUtil.cs
new file mode 100644
index 0000000..d9782ff
--- /dev/null
+++ b/OpenSim/Framework/WebUtil.cs
@@ -0,0 +1,330 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.IO;
+using System.Net;
+using System.Net.Security;
+using System.Reflection;
+using System.Text;
+using System.Web;
+using log4net;
+using OpenSim.Framework.Servers.HttpServer;
+using OpenMetaverse.StructuredData;
+
+namespace OpenSim.Framework
+{
+    /// <summary>
+    /// Miscellaneous static methods and extension methods related to the web
+    /// </summary>
+    public static class WebUtil
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// Send LLSD to an HTTP client in application/llsd+json form
+        /// </summary>
+        /// <param name="response">HTTP response to send the data in</param>
+        /// <param name="body">LLSD to send to the client</param>
+        public static void SendJSONResponse(OSHttpResponse response, OSDMap body)
+        {
+            byte[] responseData = Encoding.UTF8.GetBytes(OSDParser.SerializeJsonString(body));
+
+            response.ContentEncoding = Encoding.UTF8;
+            response.ContentLength = responseData.Length;
+            response.ContentType = "application/llsd+json";
+            response.Body.Write(responseData, 0, responseData.Length);
+        }
+
+        /// <summary>
+        /// Send LLSD to an HTTP client in application/llsd+xml form
+        /// </summary>
+        /// <param name="response">HTTP response to send the data in</param>
+        /// <param name="body">LLSD to send to the client</param>
+        public static void SendXMLResponse(OSHttpResponse response, OSDMap body)
+        {
+            byte[] responseData = OSDParser.SerializeLLSDXmlBytes(body);
+
+            response.ContentEncoding = Encoding.UTF8;
+            response.ContentLength = responseData.Length;
+            response.ContentType = "application/llsd+xml";
+            response.Body.Write(responseData, 0, responseData.Length);
+        }
+
+        /// <summary>
+        /// Make a GET or GET-like request to a web service that returns LLSD
+        /// or JSON data
+        /// </summary>
+        public static OSDMap ServiceRequest(string url, string httpVerb)
+        {
+            string errorMessage;
+
+            try
+            {
+                HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
+                request.Method = httpVerb;
+
+                using (WebResponse response = request.GetResponse())
+                {
+                    using (Stream responseStream = response.GetResponseStream())
+                    {
+                        try
+                        {
+                            string responseStr = responseStream.GetStreamString();
+                            OSD responseOSD = OSDParser.Deserialize(responseStr);
+                            if (responseOSD.Type == OSDType.Map)
+                                return (OSDMap)responseOSD;
+                            else
+                                errorMessage = "Response format was invalid.";
+                        }
+                        catch
+                        {
+                            errorMessage = "Failed to parse the response.";
+                        }
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.Warn("GET from URL " + url + " failed: " + ex.Message);
+                errorMessage = ex.Message;
+            }
+
+            return new OSDMap { { "Message", OSD.FromString("Service request failed. " + errorMessage) } };
+        }
+
+        /// <summary>
+        /// POST URL-encoded form data to a web service that returns LLSD or
+        /// JSON data
+        /// </summary>
+        public static OSDMap PostToService(string url, NameValueCollection data)
+        {
+            string errorMessage;
+
+            try
+            {
+                string queryString = BuildQueryString(data);
+                byte[] requestData = System.Text.Encoding.UTF8.GetBytes(queryString);
+
+                HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
+                request.Method = "POST";
+                request.ContentLength = requestData.Length;
+                request.ContentType = "application/x-www-form-urlencoded";
+
+                using (Stream requestStream = request.GetRequestStream())
+                    requestStream.Write(requestData, 0, requestData.Length);
+
+                using (WebResponse response = request.GetResponse())
+                {
+                    using (Stream responseStream = response.GetResponseStream())
+                    {
+                        try
+                        {
+                            string responseStr = responseStream.GetStreamString();
+                            OSD responseOSD = OSDParser.Deserialize(responseStr);
+                            if (responseOSD.Type == OSDType.Map)
+                                return (OSDMap)responseOSD;
+                            else
+                                errorMessage = "Response format was invalid.";
+                        }
+                        catch
+                        {
+                            errorMessage = "Failed to parse the response.";
+                        }
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.Warn("POST to URL " + url + " failed: " + ex.Message);
+                errorMessage = ex.Message;
+            }
+
+            return new OSDMap { { "Message", OSD.FromString("Service request failed. " + errorMessage) } };
+        }
+
+        #region Uri
+
+        /// <summary>
+        /// Combines a Uri that can contain both a base Uri and relative path
+        /// with a second relative path fragment
+        /// </summary>
+        /// <param name="uri">Starting (base) Uri</param>
+        /// <param name="fragment">Relative path fragment to append to the end
+        /// of the Uri</param>
+        /// <returns>The combined Uri</returns>
+        /// <remarks>This is similar to the Uri constructor that takes a base
+        /// Uri and the relative path, except this method can append a relative
+        /// path fragment on to an existing relative path</remarks>
+        public static Uri Combine(this Uri uri, string fragment)
+        {
+            string fragment1 = uri.Fragment;
+            string fragment2 = fragment;
+
+            if (!fragment1.EndsWith("/"))
+                fragment1 = fragment1 + '/';
+            if (fragment2.StartsWith("/"))
+                fragment2 = fragment2.Substring(1);
+
+            return new Uri(uri, fragment1 + fragment2);
+        }
+
+        /// <summary>
+        /// Combines a Uri that can contain both a base Uri and relative path
+        /// with a second relative path fragment. If the fragment is absolute,
+        /// it will be returned without modification
+        /// </summary>
+        /// <param name="uri">Starting (base) Uri</param>
+        /// <param name="fragment">Relative path fragment to append to the end
+        /// of the Uri, or an absolute Uri to return unmodified</param>
+        /// <returns>The combined Uri</returns>
+        public static Uri Combine(this Uri uri, Uri fragment)
+        {
+            if (fragment.IsAbsoluteUri)
+                return fragment;
+
+            string fragment1 = uri.Fragment;
+            string fragment2 = fragment.ToString();
+
+            if (!fragment1.EndsWith("/"))
+                fragment1 = fragment1 + '/';
+            if (fragment2.StartsWith("/"))
+                fragment2 = fragment2.Substring(1);
+
+            return new Uri(uri, fragment1 + fragment2);
+        }
+
+        /// <summary>
+        /// Appends a query string to a Uri that may or may not have existing 
+        /// query parameters
+        /// </summary>
+        /// <param name="uri">Uri to append the query to</param>
+        /// <param name="query">Query string to append. Can either start with ?
+        /// or just containg key/value pairs</param>
+        /// <returns>String representation of the Uri with the query string
+        /// appended</returns>
+        public static string AppendQuery(this Uri uri, string query)
+        {
+            if (String.IsNullOrEmpty(query))
+                return uri.ToString();
+
+            if (query[0] == '?' || query[0] == '&')
+                query = query.Substring(1);
+
+            string uriStr = uri.ToString();
+
+            if (uriStr.Contains("?"))
+                return uriStr + '&' + query;
+            else
+                return uriStr + '?' + query;
+        }
+
+        #endregion Uri
+
+        #region NameValueCollection
+
+        /// <summary>
+        /// Convert a NameValueCollection into a query string. This is the
+        /// inverse of HttpUtility.ParseQueryString()
+        /// </summary>
+        /// <param name="parameters">Collection of key/value pairs to convert</param>
+        /// <returns>A query string with URL-escaped values</returns>
+        public static string BuildQueryString(NameValueCollection parameters)
+        {
+            List<string> items = new List<string>(parameters.Count);
+
+            foreach (string key in parameters.Keys)
+            {
+                foreach (string value in parameters.GetValues(key))
+                    items.Add(String.Concat(key, "=", HttpUtility.UrlEncode(value ?? String.Empty)));
+            }
+
+            return String.Join("&", items.ToArray());
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="collection"></param>
+        /// <param name="key"></param>
+        /// <returns></returns>
+        public static string GetOne(this NameValueCollection collection, string key)
+        {
+            string[] values = collection.GetValues(key);
+            if (values != null && values.Length > 0)
+                return values[0];
+
+            return null;
+        }
+
+        #endregion NameValueCollection
+
+        #region Stream
+
+        /// <summary>
+        /// Copies the contents of one stream to another, starting at the 
+        /// current position of each stream
+        /// </summary>
+        /// <param name="copyFrom">The stream to copy from, at the position 
+        /// where copying should begin</param>
+        /// <param name="copyTo">The stream to copy to, at the position where 
+        /// bytes should be written</param>
+        /// <param name="maximumBytesToCopy">The maximum bytes to copy</param>
+        /// <returns>The total number of bytes copied</returns>
+        /// <remarks>
+        /// Copying begins at the streams' current positions. The positions are
+        /// NOT reset after copying is complete.
+        /// </remarks>
+        public static int CopyTo(this Stream copyFrom, Stream copyTo, int maximumBytesToCopy)
+        {
+            byte[] buffer = new byte[4096];
+            int readBytes;
+            int totalCopiedBytes = 0;
+
+            while ((readBytes = copyFrom.Read(buffer, 0, Math.Min(4096, maximumBytesToCopy))) > 0)
+            {
+                int writeBytes = Math.Min(maximumBytesToCopy, readBytes);
+                copyTo.Write(buffer, 0, writeBytes);
+                totalCopiedBytes += writeBytes;
+                maximumBytesToCopy -= writeBytes;
+            }
+
+            return totalCopiedBytes;
+        }
+
+        /// <summary>
+        /// Converts an entire stream to a string, regardless of current stream
+        /// position
+        /// </summary>
+        /// <param name="stream">The stream to convert to a string</param>
+        /// <returns></returns>
+        /// <remarks>When this method is done, the stream position will be 
+        /// reset to its previous position before this method was called</remarks>
+        public static string GetStreamString(this Stream stream)
+        {
+            string value = null;
+
+            if (stream != null && stream.CanRead)
+            {
+                long rewindPos = -1;
+
+                if (stream.CanSeek)
+                {
+                    rewindPos = stream.Position;
+                    stream.Seek(0, SeekOrigin.Begin);
+                }
+
+                StreamReader reader = new StreamReader(stream);
+                value = reader.ReadToEnd();
+
+                if (rewindPos >= 0)
+                    stream.Seek(rewindPos, SeekOrigin.Begin);
+            }
+
+            return value;
+        }
+
+        #endregion Stream
+    }
+}
diff --git a/OpenSim/Framework/sLLVector3.cs b/OpenSim/Framework/sLLVector3.cs
deleted file mode 100644
index 49940c4..0000000
--- a/OpenSim/Framework/sLLVector3.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * 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 OpenMetaverse;
-
-namespace OpenSim.Framework
-{
-    [Serializable]
-    public class sLLVector3
-    {
-        public float x = 0;
-        public float y = 0;
-        public float z = 0;
-
-        public sLLVector3()
-        {
-        }
-
-        public sLLVector3(Vector3 v)
-        {
-            x = v.X;
-            y = v.Y;
-            z = v.Z;
-        }
-    }
-}
\ No newline at end of file