2331 lines
		
	
	
		
			81 KiB
		
	
	
	
		
			C#
		
	
	
			
		
		
	
	
			2331 lines
		
	
	
		
			81 KiB
		
	
	
	
		
			C#
		
	
	
| /*
 | |
|  * 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.Collections;
 | |
| using System.Collections.Generic;
 | |
| using System.Data;
 | |
| using System.Diagnostics;
 | |
| using System.Globalization;
 | |
| using System.IO;
 | |
| using System.IO.Compression;
 | |
| using System.Net;
 | |
| using System.Net.Sockets;
 | |
| using System.Reflection;
 | |
| using System.Runtime.InteropServices;
 | |
| using System.Runtime.Serialization;
 | |
| using System.Runtime.Serialization.Formatters.Binary;
 | |
| using System.Security.Cryptography;
 | |
| using System.Text;
 | |
| using System.Text.RegularExpressions;
 | |
| using System.Xml;
 | |
| using System.Threading;
 | |
| using log4net;
 | |
| using log4net.Appender;
 | |
| using Nini.Config;
 | |
| using Nwc.XmlRpc;
 | |
| using OpenMetaverse;
 | |
| using OpenMetaverse.StructuredData;
 | |
| using Amib.Threading;
 | |
| 
 | |
| namespace OpenSim.Framework
 | |
| {
 | |
|     [Flags]
 | |
|     public enum PermissionMask : uint
 | |
|     { 
 | |
|         None = 0,
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|         Transfer = 1 << 13,
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|         Modify = 1 << 14,
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|         Copy = 1 << 15,
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|         Export = 1 << 16,
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|         Move = 1 << 19,
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|         Damage = 1 << 20,
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|         // All does not contain Export, which is special and must be
 | |
|         // explicitly given
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|         All = (1 << 13) | (1 << 14) | (1 << 15) | (1 << 19)
 | |
|     } 
 | |
| 
 | |
|     /// <summary>
 | |
|     /// The method used by Util.FireAndForget for asynchronously firing events
 | |
|     /// </summary>
 | |
|     /// <remarks>
 | |
|     /// None is used to execute the method in the same thread that made the call.  It should only be used by regression
 | |
|     /// test code that relies on predictable event ordering.
 | |
|     /// RegressionTest is used by regression tests.  It fires the call synchronously and does not catch any exceptions.
 | |
|     /// </remarks>
 | |
|     public enum FireAndForgetMethod
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|     {
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|         None,
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|         RegressionTest,
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|         UnsafeQueueUserWorkItem,
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|         QueueUserWorkItem,
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|         BeginInvoke,
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|         SmartThreadPool,
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|         Thread,
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|     }
 | |
| 
 | |
|     /// <summary>
 | |
|     /// Class for delivering SmartThreadPool statistical information
 | |
|     /// </summary>
 | |
|     /// <remarks>
 | |
|     /// We do it this way so that we do not directly expose STP.
 | |
|     /// </remarks>
 | |
|     public class STPInfo
 | |
|     {
 | |
|         public string Name { get; set; }
 | |
|         public STPStartInfo STPStartInfo { get; set; }
 | |
|         public WIGStartInfo WIGStartInfo { get; set; }
 | |
|         public bool IsIdle { get; set; }
 | |
|         public bool IsShuttingDown { get; set; }       
 | |
|         public int MaxThreads { get; set; }
 | |
|         public int MinThreads { get; set; }
 | |
|         public int InUseThreads { get; set; }
 | |
|         public int ActiveThreads { get; set; }
 | |
|         public int WaitingCallbacks { get; set; }
 | |
|         public int MaxConcurrentWorkItems { get; set; }
 | |
|     }
 | |
| 
 | |
|     /// <summary>
 | |
|     /// Miscellaneous utility functions
 | |
|     /// </summary>
 | |
|     public static class Util
 | |
|     {
 | |
|         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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| 
 | |
|         private static uint nextXferID = 5000;
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|         private static Random randomClass = new Random();
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| 
 | |
|         // Get a list of invalid file characters (OS dependent)
 | |
|         private static string regexInvalidFileChars = "[" + new String(Path.GetInvalidFileNameChars()) + "]";
 | |
|         private static string regexInvalidPathChars = "[" + new String(Path.GetInvalidPathChars()) + "]";
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|         private static object XferLock = new object();
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| 
 | |
|         /// <summary>
 | |
|         /// Thread pool used for Util.FireAndForget if FireAndForgetMethod.SmartThreadPool is used
 | |
|         /// </summary>
 | |
|         private static SmartThreadPool m_ThreadPool;
 | |
| 
 | |
|         // Unix-epoch starts at January 1st 1970, 00:00:00 UTC. And all our times in the server are (or at least should be) in UTC.
 | |
|         private static readonly DateTime unixEpoch =
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|             DateTime.ParseExact("1970-01-01 00:00:00 +0", "yyyy-MM-dd hh:mm:ss z", DateTimeFormatInfo.InvariantInfo).ToUniversalTime();
 | |
| 
 | |
|         private static readonly string rawUUIDPattern
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|             = "[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}";
 | |
|         public static readonly Regex PermissiveUUIDPattern = new Regex(rawUUIDPattern);
 | |
|         public static readonly Regex UUIDPattern = new Regex(string.Format("^{0}$", rawUUIDPattern));
 | |
| 
 | |
|         public static FireAndForgetMethod DefaultFireAndForgetMethod = FireAndForgetMethod.SmartThreadPool;
 | |
|         public static FireAndForgetMethod FireAndForgetMethod = DefaultFireAndForgetMethod;
 | |
| 
 | |
|         public static bool IsPlatformMono
 | |
|         {
 | |
|             get { return Type.GetType("Mono.Runtime") != null; }
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Gets the name of the directory where the current running executable
 | |
|         /// is located
 | |
|         /// </summary>
 | |
|         /// <returns>Filesystem path to the directory containing the current
 | |
|         /// executable</returns>
 | |
|         public static string ExecutingDirectory()
 | |
|         {
 | |
|             return Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Linear interpolates B<->C using percent A
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|         /// </summary>
 | |
|         /// <param name="a"></param>
 | |
|         /// <param name="b"></param>
 | |
|         /// <param name="c"></param>
 | |
|         /// <returns></returns>
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|         public static double lerp(double a, double b, double c)
 | |
|         {
 | |
|             return (b*a) + (c*(1 - a));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Bilinear Interpolate, see Lerp but for 2D using 'percents' X & Y.
 | |
|         /// Layout:
 | |
|         ///     A B
 | |
|         ///     C D
 | |
|         /// A<->C = Y
 | |
|         /// C<->D = X
 | |
|         /// </summary>
 | |
|         /// <param name="x"></param>
 | |
|         /// <param name="y"></param>
 | |
|         /// <param name="a"></param>
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|         /// <param name="b"></param>
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|         /// <param name="c"></param>
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|         /// <param name="d"></param>
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|         /// <returns></returns>
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|         public static double lerp2D(double x, double y, double a, double b, double c, double d)
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|         {
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|             return lerp(y, lerp(x, a, b), lerp(x, c, d));
 | |
|         }
 | |
| 
 | |
|         public static Encoding UTF8 = Encoding.UTF8;
 | |
|         public static Encoding UTF8NoBomEncoding = new UTF8Encoding(false);
 | |
| 
 | |
|         /// <value>
 | |
|         /// Well known UUID for the blank texture used in the Linden SL viewer version 1.20 (and hopefully onwards) 
 | |
|         /// </value>
 | |
|         public static UUID BLANK_TEXTURE_UUID = new UUID("5748decc-f629-461c-9a36-a35a221fe21f");
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| 
 | |
|         #region Vector Equations
 | |
| 
 | |
|         /// <summary>
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|         /// Get the distance between two 3d vectors
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|         /// </summary>
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|         /// <param name="a">A 3d vector</param>
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|         /// <param name="b">A 3d vector</param>
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|         /// <returns>The distance between the two vectors</returns>
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|         public static double GetDistanceTo(Vector3 a, Vector3 b)
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|         {
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|             float dx = a.X - b.X;
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|             float dy = a.Y - b.Y;
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|             float dz = a.Z - b.Z;
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|             return Math.Sqrt(dx * dx + dy * dy + dz * dz);
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|         }
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| 
 | |
|         /// <summary>
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|         /// Returns true if the distance beween A and B is less than amount. Significantly faster than GetDistanceTo since it eliminates the Sqrt.
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|         /// </summary>
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|         /// <param name="a"></param>
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|         /// <param name="b"></param>
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|         /// <param name="amount"></param>
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|         /// <returns></returns>
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|         public static bool DistanceLessThan(Vector3 a, Vector3 b, double amount)
 | |
|         {
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|             float dx = a.X - b.X;
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|             float dy = a.Y - b.Y;
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|             float dz = a.Z - b.Z;
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|             return (dx*dx + dy*dy + dz*dz) < (amount*amount);
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|         }
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| 
 | |
|         /// <summary>
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|         /// Get the magnitude of a 3d vector
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|         /// </summary>
 | |
|         /// <param name="a">A 3d vector</param>
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|         /// <returns>The magnitude of the vector</returns>
 | |
|         public static double GetMagnitude(Vector3 a)
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|         {
 | |
|             return Math.Sqrt((a.X * a.X) + (a.Y * a.Y) + (a.Z * a.Z));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Get a normalized form of a 3d vector
 | |
|         /// </summary>
 | |
|         /// <param name="a">A 3d vector</param>
 | |
|         /// <returns>A new vector which is normalized form of the vector</returns>
 | |
|         /// <remarks>The vector paramater cannot be <0,0,0></remarks>
 | |
|         public static Vector3 GetNormalizedVector(Vector3 a)
 | |
|         {
 | |
|             if (IsZeroVector(a))
 | |
|                 throw new ArgumentException("Vector paramater cannot be a zero vector.");
 | |
| 
 | |
|             float Mag = (float) GetMagnitude(a);
 | |
|             return new Vector3(a.X / Mag, a.Y / Mag, a.Z / Mag);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Returns if a vector is a zero vector (has all zero components)
 | |
|         /// </summary>
 | |
|         /// <returns></returns>
 | |
|         public static bool IsZeroVector(Vector3 v)
 | |
|         {
 | |
|             if (v.X == 0 && v.Y == 0 && v.Z == 0)
 | |
|             {
 | |
|                 return true;
 | |
|             }
 | |
| 
 | |
|             return false;
 | |
|         }
 | |
| 
 | |
|         # endregion
 | |
| 
 | |
|         public static Quaternion Axes2Rot(Vector3 fwd, Vector3 left, Vector3 up)
 | |
|         {
 | |
|             float s;
 | |
|             float tr = (float) (fwd.X + left.Y + up.Z + 1.0);
 | |
| 
 | |
|             if (tr >= 1.0)
 | |
|             {
 | |
|                 s = (float) (0.5 / Math.Sqrt(tr));
 | |
|                 return new Quaternion(
 | |
|                         (left.Z - up.Y) * s,
 | |
|                         (up.X - fwd.Z) * s,
 | |
|                         (fwd.Y - left.X) * s,
 | |
|                         (float) 0.25 / s);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 float max = (left.Y > up.Z) ? left.Y : up.Z;
 | |
| 
 | |
|                 if (max < fwd.X)
 | |
|                 {
 | |
|                     s = (float) (Math.Sqrt(fwd.X - (left.Y + up.Z) + 1.0));
 | |
|                     float x = (float) (s * 0.5);
 | |
|                     s = (float) (0.5 / s);
 | |
|                     return new Quaternion(
 | |
|                             x,
 | |
|                             (fwd.Y + left.X) * s,
 | |
|                             (up.X + fwd.Z) * s,
 | |
|                             (left.Z - up.Y) * s);
 | |
|                 }
 | |
|                 else if (max == left.Y)
 | |
|                 {
 | |
|                     s = (float) (Math.Sqrt(left.Y - (up.Z + fwd.X) + 1.0));
 | |
|                     float y = (float) (s * 0.5);
 | |
|                     s = (float) (0.5 / s);
 | |
|                     return new Quaternion(
 | |
|                             (fwd.Y + left.X) * s,
 | |
|                             y,
 | |
|                             (left.Z + up.Y) * s,
 | |
|                             (up.X - fwd.Z) * s);
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     s = (float) (Math.Sqrt(up.Z - (fwd.X + left.Y) + 1.0));
 | |
|                     float z = (float) (s * 0.5);
 | |
|                     s = (float) (0.5 / s);
 | |
|                     return new Quaternion(
 | |
|                             (up.X + fwd.Z) * s,
 | |
|                             (left.Z + up.Y) * s,
 | |
|                             z,
 | |
|                             (fwd.Y - left.X) * s);
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static Random RandomClass
 | |
|         {
 | |
|             get { return randomClass; }
 | |
|         }
 | |
| 
 | |
|         public static ulong UIntsToLong(uint X, uint Y)
 | |
|         {
 | |
|             return Utils.UIntsToLong(X, Y);
 | |
|         }
 | |
| 
 | |
|         public static T Clamp<T>(T x, T min, T max)
 | |
|             where T : IComparable<T>
 | |
|         {
 | |
|             return x.CompareTo(max) > 0 ? max :
 | |
|                 x.CompareTo(min) < 0 ? min :
 | |
|                 x;
 | |
|         }
 | |
| 
 | |
|         // Clamp the maximum magnitude of a vector
 | |
|         public static Vector3 ClampV(Vector3 x, float max)
 | |
|         {
 | |
|             float lenSq = x.LengthSquared();
 | |
|             if (lenSq > (max * max))
 | |
|             {
 | |
|                 x = x / x.Length() * max;
 | |
|             }
 | |
| 
 | |
|             return x;
 | |
|         }
 | |
| 
 | |
|         // Inclusive, within range test (true if equal to the endpoints)
 | |
|         public static bool InRange<T>(T x, T min, T max)
 | |
|             where T : IComparable<T>
 | |
|         {
 | |
|             return x.CompareTo(max) <= 0 && x.CompareTo(min) >= 0;
 | |
|         }
 | |
| 
 | |
|         public static uint GetNextXferID()
 | |
|         {
 | |
|             uint id = 0;
 | |
|             lock (XferLock)
 | |
|             {
 | |
|                 id = nextXferID;
 | |
|                 nextXferID++;
 | |
|             }
 | |
|             return id;
 | |
|         }
 | |
| 
 | |
|         public static string GetFileName(string file)
 | |
|         {
 | |
|             // Return just the filename on UNIX platforms
 | |
|             // TODO: this should be customisable with a prefix, but that's something to do later.
 | |
|             if (Environment.OSVersion.Platform == PlatformID.Unix)
 | |
|             {
 | |
|                 return file;
 | |
|             }
 | |
| 
 | |
|             // Return %APPDATA%/OpenSim/file for 2K/XP/NT/2K3/VISTA
 | |
|             // TODO: Switch this to System.Enviroment.SpecialFolders.ApplicationData
 | |
|             if (Environment.OSVersion.Platform == PlatformID.Win32NT)
 | |
|             {
 | |
|                 if (!Directory.Exists("%APPDATA%\\OpenSim\\"))
 | |
|                 {
 | |
|                     Directory.CreateDirectory("%APPDATA%\\OpenSim");
 | |
|                 }
 | |
| 
 | |
|                 return "%APPDATA%\\OpenSim\\" + file;
 | |
|             }
 | |
| 
 | |
|             // Catch all - covers older windows versions
 | |
|             // (but those probably wont work anyway)
 | |
|             return file;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Debug utility function to convert OSD into formatted XML for debugging purposes.
 | |
|         /// </summary>
 | |
|         /// <param name="osd">
 | |
|         /// A <see cref="OSD"/>
 | |
|         /// </param>
 | |
|         /// <returns>
 | |
|         /// A <see cref="System.String"/>
 | |
|         /// </returns>
 | |
|         public static string GetFormattedXml(OSD osd)
 | |
|         {
 | |
|             return GetFormattedXml(OSDParser.SerializeLLSDXmlString(osd));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Debug utility function to convert unbroken strings of XML into something human readable for occasional debugging purposes.
 | |
|         /// </summary>
 | |
|         /// <remarks>
 | |
|         /// Please don't delete me even if I appear currently unused!
 | |
|         /// </remarks>
 | |
|         /// <param name="rawXml"></param>
 | |
|         /// <returns></returns>
 | |
|         public static string GetFormattedXml(string rawXml)
 | |
|         {
 | |
|             XmlDocument xd = new XmlDocument();
 | |
|             xd.LoadXml(rawXml);
 | |
| 
 | |
|             StringBuilder sb = new StringBuilder();
 | |
|             StringWriter sw = new StringWriter(sb);
 | |
| 
 | |
|             XmlTextWriter xtw = new XmlTextWriter(sw);
 | |
|             xtw.Formatting = Formatting.Indented;
 | |
| 
 | |
|             try
 | |
|             {
 | |
|                 xd.WriteTo(xtw);
 | |
|             }
 | |
|             finally
 | |
|             {
 | |
|                 xtw.Close();
 | |
|             }
 | |
| 
 | |
|             return sb.ToString();
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Is the platform Windows?
 | |
|         /// </summary>
 | |
|         /// <returns>true if so, false otherwise</returns>
 | |
|         public static bool IsWindows()
 | |
|         {
 | |
|             PlatformID platformId = Environment.OSVersion.Platform;
 | |
| 
 | |
|             return (platformId == PlatformID.Win32NT
 | |
|                 || platformId == PlatformID.Win32S
 | |
|                 || platformId == PlatformID.Win32Windows
 | |
|                 || platformId == PlatformID.WinCE);
 | |
|         }
 | |
| 
 | |
|         public static bool LoadArchSpecificWindowsDll(string libraryName)
 | |
|         {
 | |
|             // We do this so that OpenSimulator on Windows loads the correct native library depending on whether
 | |
|             // it's running as a 32-bit process or a 64-bit one.  By invoking LoadLibary here, later DLLImports
 | |
|             // will find it already loaded later on.
 | |
|             //
 | |
|             // This isn't necessary for other platforms (e.g. Mac OSX and Linux) since the DLL used can be
 | |
|             // controlled in config files.
 | |
|             string nativeLibraryPath;
 | |
| 
 | |
|             if (Util.Is64BitProcess())
 | |
|                 nativeLibraryPath = "lib64/" + libraryName;
 | |
|             else
 | |
|                 nativeLibraryPath = "lib32/" + libraryName;
 | |
| 
 | |
|             m_log.DebugFormat("[UTIL]: Loading native Windows library at {0}", nativeLibraryPath);
 | |
| 
 | |
|             if (Util.LoadLibrary(nativeLibraryPath) == IntPtr.Zero)
 | |
|             {
 | |
|                 m_log.ErrorFormat(
 | |
|                     "[UTIL]: Couldn't find native Windows library at {0}", nativeLibraryPath);
 | |
| 
 | |
|                 return false;
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 return true;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static bool IsEnvironmentSupported(ref string reason)
 | |
|         {
 | |
|             // Must have .NET 2.0 (Generics / libsl)
 | |
|             if (Environment.Version.Major < 2)
 | |
|             {
 | |
|                 reason = ".NET 1.0/1.1 lacks components that is used by OpenSim";
 | |
|                 return false;
 | |
|             }
 | |
| 
 | |
|             // Windows 95/98/ME are unsupported
 | |
|             if (Environment.OSVersion.Platform == PlatformID.Win32Windows &&
 | |
|                 Environment.OSVersion.Platform != PlatformID.Win32NT)
 | |
|             {
 | |
|                 reason = "Windows 95/98/ME will not run OpenSim";
 | |
|                 return false;
 | |
|             }
 | |
| 
 | |
|             // Windows 2000 / Pre-SP2 XP
 | |
|             if (Environment.OSVersion.Version.Major == 5 &&
 | |
|                 Environment.OSVersion.Version.Minor == 0)
 | |
|             {
 | |
|                 reason = "Please update to Windows XP Service Pack 2 or Server2003";
 | |
|                 return false;
 | |
|             }
 | |
| 
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         public static int UnixTimeSinceEpoch()
 | |
|         {
 | |
|             return ToUnixTime(DateTime.UtcNow);
 | |
|         }
 | |
| 
 | |
|         public static int ToUnixTime(DateTime stamp)
 | |
|         {
 | |
|             TimeSpan t = stamp.ToUniversalTime() - unixEpoch;
 | |
|             return (int) t.TotalSeconds;
 | |
|         }
 | |
| 
 | |
|         public static DateTime ToDateTime(ulong seconds)
 | |
|         {
 | |
|             DateTime epoch = unixEpoch;
 | |
|             return epoch.AddSeconds(seconds);
 | |
|         }
 | |
| 
 | |
|         public static DateTime ToDateTime(int seconds)
 | |
|         {
 | |
|             DateTime epoch = unixEpoch;
 | |
|             return epoch.AddSeconds(seconds);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Return an md5 hash of the given string
 | |
|         /// </summary>
 | |
|         /// <param name="data"></param>
 | |
|         /// <returns></returns>
 | |
|         public static string Md5Hash(string data)
 | |
|         {
 | |
|             byte[] dataMd5 = ComputeMD5Hash(data);
 | |
|             StringBuilder sb = new StringBuilder();
 | |
|             for (int i = 0; i < dataMd5.Length; i++)
 | |
|                 sb.AppendFormat("{0:x2}", dataMd5[i]);
 | |
|             return sb.ToString();
 | |
|         }
 | |
| 
 | |
|         private static byte[] ComputeMD5Hash(string data)
 | |
|         {
 | |
|             MD5 md5 = MD5.Create();
 | |
|             return md5.ComputeHash(Encoding.Default.GetBytes(data));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Return an SHA1 hash
 | |
|         /// </summary>
 | |
|         /// <param name="data"></param>
 | |
|         /// <returns></returns>
 | |
|         public static string SHA1Hash(string data)
 | |
|         {
 | |
|             return SHA1Hash(Encoding.Default.GetBytes(data));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Return an SHA1 hash
 | |
|         /// </summary>
 | |
|         /// <param name="data"></param>
 | |
|         /// <returns></returns>
 | |
|         public static string SHA1Hash(byte[] data)
 | |
|         {
 | |
|             byte[] hash = ComputeSHA1Hash(data);
 | |
|             return BitConverter.ToString(hash).Replace("-", String.Empty);
 | |
|         }
 | |
| 
 | |
|         private static byte[] ComputeSHA1Hash(byte[] src)
 | |
|         {
 | |
|             SHA1CryptoServiceProvider SHA1 = new SHA1CryptoServiceProvider();
 | |
|             return SHA1.ComputeHash(src);
 | |
|         }
 | |
| 
 | |
|         public static int fast_distance2d(int x, int y)
 | |
|         {
 | |
|             x = Math.Abs(x);
 | |
|             y = Math.Abs(y);
 | |
| 
 | |
|             int min = Math.Min(x, y);
 | |
| 
 | |
|             return (x + y - (min >> 1) - (min >> 2) + (min >> 4));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Determines whether a point is inside a bounding box.
 | |
|         /// </summary>
 | |
|         /// <param name='v'></param>
 | |
|         /// <param name='min'></param>
 | |
|         /// <param name='max'></param>
 | |
|         /// <returns></returns>
 | |
|         public static bool IsInsideBox(Vector3 v, Vector3 min, Vector3 max)
 | |
|         {
 | |
|             return v.X >= min.X & v.Y >= min.Y && v.Z >= min.Z
 | |
|                 && v.X <= max.X && v.Y <= max.Y && v.Z <= max.Z;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Are the co-ordinates of the new region visible from the old region?
 | |
|         /// </summary>
 | |
|         /// <param name="oldx">Old region x-coord</param>
 | |
|         /// <param name="newx">New region x-coord</param>
 | |
|         /// <param name="oldy">Old region y-coord</param>
 | |
|         /// <param name="newy">New region y-coord</param>
 | |
|         /// <returns></returns>        
 | |
|         public static bool IsOutsideView(float drawdist, uint oldx, uint newx, uint oldy, uint newy)
 | |
|         {
 | |
|             int dd = (int)((drawdist + Constants.RegionSize - 1) / Constants.RegionSize);
 | |
| 
 | |
|             int startX = (int)oldx - dd;
 | |
|             int startY = (int)oldy - dd;
 | |
| 
 | |
|             int endX = (int)oldx + dd;
 | |
|             int endY = (int)oldy + dd;
 | |
| 
 | |
|             return (newx < startX || endX < newx || newy < startY || endY < newy);
 | |
|         }
 | |
| 
 | |
|         public static string FieldToString(byte[] bytes)
 | |
|         {
 | |
|             return FieldToString(bytes, String.Empty);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert a variable length field (byte array) to a string, with a
 | |
|         /// field name prepended to each line of the output
 | |
|         /// </summary>
 | |
|         /// <remarks>If the byte array has unprintable characters in it, a
 | |
|         /// hex dump will be put in the string instead</remarks>
 | |
|         /// <param name="bytes">The byte array to convert to a string</param>
 | |
|         /// <param name="fieldName">A field name to prepend to each line of output</param>
 | |
|         /// <returns>An ASCII string or a string containing a hex dump, minus
 | |
|         /// the null terminator</returns>
 | |
|         public static string FieldToString(byte[] bytes, string fieldName)
 | |
|         {
 | |
|             // Check for a common case
 | |
|             if (bytes.Length == 0) return String.Empty;
 | |
| 
 | |
|             StringBuilder output = new StringBuilder();
 | |
|             bool printable = true;
 | |
| 
 | |
|             for (int i = 0; i < bytes.Length; ++i)
 | |
|             {
 | |
|                 // Check if there are any unprintable characters in the array
 | |
|                 if ((bytes[i] < 0x20 || bytes[i] > 0x7E) && bytes[i] != 0x09
 | |
|                     && bytes[i] != 0x0D && bytes[i] != 0x0A && bytes[i] != 0x00)
 | |
|                 {
 | |
|                     printable = false;
 | |
|                     break;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (printable)
 | |
|             {
 | |
|                 if (fieldName.Length > 0)
 | |
|                 {
 | |
|                     output.Append(fieldName);
 | |
|                     output.Append(": ");
 | |
|                 }
 | |
| 
 | |
|                 output.Append(CleanString(Util.UTF8.GetString(bytes, 0, bytes.Length - 1)));
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 for (int i = 0; i < bytes.Length; i += 16)
 | |
|                 {
 | |
|                     if (i != 0)
 | |
|                         output.Append(Environment.NewLine);
 | |
|                     if (fieldName.Length > 0)
 | |
|                     {
 | |
|                         output.Append(fieldName);
 | |
|                         output.Append(": ");
 | |
|                     }
 | |
| 
 | |
|                     for (int j = 0; j < 16; j++)
 | |
|                     {
 | |
|                         if ((i + j) < bytes.Length)
 | |
|                             output.Append(String.Format("{0:X2} ", bytes[i + j]));
 | |
|                         else
 | |
|                             output.Append("   ");
 | |
|                     }
 | |
| 
 | |
|                     for (int j = 0; j < 16 && (i + j) < bytes.Length; j++)
 | |
|                     {
 | |
|                         if (bytes[i + j] >= 0x20 && bytes[i + j] < 0x7E)
 | |
|                             output.Append((char) bytes[i + j]);
 | |
|                         else
 | |
|                             output.Append(".");
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return output.ToString();
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Converts a URL to a IPAddress
 | |
|         /// </summary>
 | |
|         /// <param name="url">URL Standard Format</param>
 | |
|         /// <returns>A resolved IP Address</returns>
 | |
|         public static IPAddress GetHostFromURL(string url)
 | |
|         {
 | |
|             return GetHostFromDNS(url.Split(new char[] {'/', ':'})[3]);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Returns a IP address from a specified DNS, favouring IPv4 addresses.
 | |
|         /// </summary>
 | |
|         /// <param name="dnsAddress">DNS Hostname</param>
 | |
|         /// <returns>An IP address, or null</returns>
 | |
|         public static IPAddress GetHostFromDNS(string dnsAddress)
 | |
|         {
 | |
|             // Is it already a valid IP? No need to look it up.
 | |
|             IPAddress ipa;
 | |
|             if (IPAddress.TryParse(dnsAddress, out ipa))
 | |
|                 return ipa;
 | |
| 
 | |
|             IPAddress[] hosts = null;
 | |
| 
 | |
|             // Not an IP, lookup required
 | |
|             try
 | |
|             {
 | |
|                 hosts = Dns.GetHostEntry(dnsAddress).AddressList;
 | |
|             }
 | |
|             catch (Exception e)
 | |
|             {
 | |
|                 m_log.WarnFormat("[UTIL]: An error occurred while resolving host name {0}, {1}", dnsAddress, e);
 | |
| 
 | |
|                 // Still going to throw the exception on for now, since this was what was happening in the first place
 | |
|                 throw e;
 | |
|             }
 | |
| 
 | |
|             foreach (IPAddress host in hosts)
 | |
|             {
 | |
|                 if (host.AddressFamily == AddressFamily.InterNetwork)
 | |
|                 {
 | |
|                     return host;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (hosts.Length > 0)
 | |
|                 return hosts[0];
 | |
| 
 | |
|             return null;
 | |
|         }
 | |
| 
 | |
|         public static Uri GetURI(string protocol, string hostname, int port, string path)
 | |
|         {
 | |
|             return new UriBuilder(protocol, hostname, port, path).Uri;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Gets a list of all local system IP addresses
 | |
|         /// </summary>
 | |
|         /// <returns></returns>
 | |
|         public static IPAddress[] GetLocalHosts()
 | |
|         {
 | |
|             return Dns.GetHostAddresses(Dns.GetHostName());
 | |
|         }
 | |
| 
 | |
|         public static IPAddress GetLocalHost()
 | |
|         {
 | |
|             IPAddress[] iplist = GetLocalHosts();
 | |
| 
 | |
|             if (iplist.Length == 0) // No accessible external interfaces
 | |
|             {
 | |
|                 IPAddress[] loopback = Dns.GetHostAddresses("localhost");
 | |
|                 IPAddress localhost = loopback[0];
 | |
| 
 | |
|                 return localhost;
 | |
|             }
 | |
| 
 | |
|             foreach (IPAddress host in iplist)
 | |
|             {
 | |
|                 if (!IPAddress.IsLoopback(host) && host.AddressFamily == AddressFamily.InterNetwork)
 | |
|                 {
 | |
|                     return host;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             if (iplist.Length > 0)
 | |
|             {
 | |
|                 foreach (IPAddress host in iplist)
 | |
|                 {
 | |
|                     if (host.AddressFamily == AddressFamily.InterNetwork)
 | |
|                         return host;
 | |
|                 }
 | |
|                 // Well all else failed...
 | |
|                 return iplist[0];
 | |
|             }
 | |
| 
 | |
|             return null;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Removes all invalid path chars (OS dependent)
 | |
|         /// </summary>
 | |
|         /// <param name="path">path</param>
 | |
|         /// <returns>safe path</returns>
 | |
|         public static string safePath(string path)
 | |
|         {
 | |
|             return Regex.Replace(path, regexInvalidPathChars, String.Empty);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Removes all invalid filename chars (OS dependent)
 | |
|         /// </summary>
 | |
|         /// <param name="path">filename</param>
 | |
|         /// <returns>safe filename</returns>
 | |
|         public static string safeFileName(string filename)
 | |
|         {
 | |
|             return Regex.Replace(filename, regexInvalidFileChars, String.Empty);
 | |
|             ;
 | |
|         }
 | |
| 
 | |
|         //
 | |
|         // directory locations
 | |
|         //
 | |
| 
 | |
|         public static string homeDir()
 | |
|         {
 | |
|             string temp;
 | |
|             //            string personal=(Environment.GetFolderPath(Environment.SpecialFolder.Personal));
 | |
|             //            temp = Path.Combine(personal,".OpenSim");
 | |
|             temp = ".";
 | |
|             return temp;
 | |
|         }
 | |
| 
 | |
|         public static string assetsDir()
 | |
|         {
 | |
|             return Path.Combine(configDir(), "assets");
 | |
|         }
 | |
| 
 | |
|         public static string inventoryDir()
 | |
|         {
 | |
|             return Path.Combine(configDir(), "inventory");
 | |
|         }
 | |
| 
 | |
|         public static string configDir()
 | |
|         {
 | |
|             return ".";
 | |
|         }
 | |
| 
 | |
|         public static string dataDir()
 | |
|         {
 | |
|             return ".";
 | |
|         }
 | |
| 
 | |
|         public static string logFile()
 | |
|         {
 | |
|             foreach (IAppender appender in LogManager.GetRepository().GetAppenders())
 | |
|             {
 | |
|                 if (appender is FileAppender)
 | |
|                 {
 | |
|                     return ((FileAppender)appender).File;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return "./OpenSim.log";
 | |
|         }
 | |
| 
 | |
|         public static string logDir()
 | |
|         {
 | |
|             return Path.GetDirectoryName(logFile());
 | |
|         }
 | |
| 
 | |
|         // From: http://coercedcode.blogspot.com/2008/03/c-generate-unique-filenames-within.html
 | |
|         public static string GetUniqueFilename(string FileName)
 | |
|         {
 | |
|             int count = 0;
 | |
|             string Name;
 | |
| 
 | |
|             if (File.Exists(FileName))
 | |
|             {
 | |
|                 FileInfo f = new FileInfo(FileName);
 | |
| 
 | |
|                 if (!String.IsNullOrEmpty(f.Extension))
 | |
|                 {
 | |
|                     Name = f.FullName.Substring(0, f.FullName.LastIndexOf('.'));
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     Name = f.FullName;
 | |
|                 }
 | |
| 
 | |
|                 while (File.Exists(FileName))
 | |
|                 {
 | |
|                     count++;
 | |
|                     FileName = Name + count + f.Extension;
 | |
|                 }
 | |
|             }
 | |
|             return FileName;
 | |
|         }
 | |
| 
 | |
|         #region Nini (config) related Methods
 | |
|         public static IConfigSource ConvertDataRowToXMLConfig(DataRow row, string fileName)
 | |
|         {
 | |
|             if (!File.Exists(fileName))
 | |
|             {
 | |
|                 //create new file
 | |
|             }
 | |
|             XmlConfigSource config = new XmlConfigSource(fileName);
 | |
|             AddDataRowToConfig(config, row);
 | |
|             config.Save();
 | |
| 
 | |
|             return config;
 | |
|         }
 | |
| 
 | |
|         public static void AddDataRowToConfig(IConfigSource config, DataRow row)
 | |
|         {
 | |
|             config.Configs.Add((string) row[0]);
 | |
|             for (int i = 0; i < row.Table.Columns.Count; i++)
 | |
|             {
 | |
|                 config.Configs[(string) row[0]].Set(row.Table.Columns[i].ColumnName, row[i]);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static string GetConfigVarWithDefaultSection(IConfigSource config, string varname, string section)
 | |
|         {
 | |
|             // First, check the Startup section, the default section
 | |
|             IConfig cnf = config.Configs["Startup"];
 | |
|             if (cnf == null)
 | |
|                 return string.Empty;
 | |
|             string val = cnf.GetString(varname, string.Empty);
 | |
| 
 | |
|             // Then check for an overwrite of the default in the given section
 | |
|             if (!string.IsNullOrEmpty(section))
 | |
|             {
 | |
|                 cnf = config.Configs[section];
 | |
|                 if (cnf != null)
 | |
|                     val = cnf.GetString(varname, val);
 | |
|             }
 | |
| 
 | |
|             return val;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Gets the value of a configuration variable by looking into
 | |
|         /// multiple sections in order. The latter sections overwrite 
 | |
|         /// any values previously found.
 | |
|         /// </summary>
 | |
|         /// <typeparam name="T">Type of the variable</typeparam>
 | |
|         /// <param name="config">The configuration object</param>
 | |
|         /// <param name="varname">The configuration variable</param>
 | |
|         /// <param name="sections">Ordered sequence of sections to look at</param>
 | |
|         /// <returns></returns>
 | |
|         public static T GetConfigVarFromSections<T>(IConfigSource config, string varname, string[] sections)
 | |
|         {
 | |
|             return GetConfigVarFromSections<T>(config, varname, sections, default(T));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Gets the value of a configuration variable by looking into
 | |
|         /// multiple sections in order. The latter sections overwrite 
 | |
|         /// any values previously found.
 | |
|         /// </summary>
 | |
|         /// <remarks>
 | |
|         /// If no value is found then the given default value is returned
 | |
|         /// </remarks>
 | |
|         /// <typeparam name="T">Type of the variable</typeparam>
 | |
|         /// <param name="config">The configuration object</param>
 | |
|         /// <param name="varname">The configuration variable</param>
 | |
|         /// <param name="sections">Ordered sequence of sections to look at</param>
 | |
|         /// <param name="val">Default value</param>
 | |
|         /// <returns></returns>
 | |
|         public static T GetConfigVarFromSections<T>(IConfigSource config, string varname, string[] sections, object val)
 | |
|         {
 | |
|             foreach (string section in sections)
 | |
|             {
 | |
|                 IConfig cnf = config.Configs[section];
 | |
|                 if (cnf == null)
 | |
|                     continue;
 | |
| 
 | |
|                 if (typeof(T) == typeof(String))
 | |
|                     val = cnf.GetString(varname, (string)val);
 | |
|                 else if (typeof(T) == typeof(Boolean))
 | |
|                     val = cnf.GetBoolean(varname, (bool)val);
 | |
|                 else if (typeof(T) == typeof(Int32))
 | |
|                     val = cnf.GetInt(varname, (int)val);
 | |
|                 else if (typeof(T) == typeof(float))
 | |
|                     val = cnf.GetFloat(varname, (int)val);
 | |
|                 else
 | |
|                     m_log.ErrorFormat("[UTIL]: Unhandled type {0}", typeof(T));
 | |
|             }
 | |
| 
 | |
|             return (T)val;
 | |
|         }
 | |
| 
 | |
|         #endregion
 | |
| 
 | |
|         public static float Clip(float x, float min, float max)
 | |
|         {
 | |
|             return Math.Min(Math.Max(x, min), max);
 | |
|         }
 | |
| 
 | |
|         public static int Clip(int x, int min, int max)
 | |
|         {
 | |
|             return Math.Min(Math.Max(x, min), max);
 | |
|         }
 | |
| 
 | |
|         public static Vector3 Clip(Vector3 vec, float min, float max)
 | |
|         {
 | |
|             return new Vector3(Clip(vec.X, min, max), Clip(vec.Y, min, max),
 | |
|                 Clip(vec.Z, min, max));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert an UUID to a raw uuid string.  Right now this is a string without hyphens.
 | |
|         /// </summary>
 | |
|         /// <param name="UUID"></param>
 | |
|         /// <returns></returns>
 | |
|         public static String ToRawUuidString(UUID UUID)
 | |
|         {
 | |
|             return UUID.Guid.ToString("n");
 | |
|         }
 | |
| 
 | |
|         public static string CleanString(string input)
 | |
|         {
 | |
|             if (input.Length == 0)
 | |
|                 return input;
 | |
| 
 | |
|             int clip = input.Length;
 | |
| 
 | |
|             // Test for ++ string terminator
 | |
|             int pos = input.IndexOf("\0");
 | |
|             if (pos != -1 && pos < clip)
 | |
|                 clip = pos;
 | |
| 
 | |
|             // Test for CR
 | |
|             pos = input.IndexOf("\r");
 | |
|             if (pos != -1 && pos < clip)
 | |
|                 clip = pos;
 | |
| 
 | |
|             // Test for LF
 | |
|             pos = input.IndexOf("\n");
 | |
|             if (pos != -1 && pos < clip)
 | |
|                 clip = pos;
 | |
| 
 | |
|             // Truncate string before first end-of-line character found
 | |
|             return input.Substring(0, clip);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// returns the contents of /etc/issue on Unix Systems
 | |
|         /// Use this for where it's absolutely necessary to implement platform specific stuff
 | |
|         /// </summary>
 | |
|         /// <returns></returns>
 | |
|         public static string ReadEtcIssue()
 | |
|         {
 | |
|             try
 | |
|             {
 | |
|                 StreamReader sr = new StreamReader("/etc/issue.net");
 | |
|                 string issue = sr.ReadToEnd();
 | |
|                 sr.Close();
 | |
|                 return issue;
 | |
|             }
 | |
|             catch (Exception)
 | |
|             {
 | |
|                 return "";
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void SerializeToFile(string filename, Object obj)
 | |
|         {
 | |
|             IFormatter formatter = new BinaryFormatter();
 | |
|             Stream stream = null;
 | |
| 
 | |
|             try
 | |
|             {
 | |
|                 stream = new FileStream(
 | |
|                     filename, FileMode.Create,
 | |
|                     FileAccess.Write, FileShare.None);
 | |
| 
 | |
|                 formatter.Serialize(stream, obj);
 | |
|             }
 | |
|             catch (Exception e)
 | |
|             {
 | |
|                 m_log.Error(e.ToString());
 | |
|             }
 | |
|             finally
 | |
|             {
 | |
|                 if (stream != null)
 | |
|                 {
 | |
|                     stream.Close();
 | |
|                 }
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static Object DeserializeFromFile(string filename)
 | |
|         {
 | |
|             IFormatter formatter = new BinaryFormatter();
 | |
|             Stream stream = null;
 | |
|             Object ret = null;
 | |
| 
 | |
|             try
 | |
|             {
 | |
|                 stream = new FileStream(
 | |
|                     filename, FileMode.Open,
 | |
|                     FileAccess.Read, FileShare.None);
 | |
| 
 | |
|                 ret = formatter.Deserialize(stream);
 | |
|             }
 | |
|             catch (Exception e)
 | |
|             {
 | |
|                 m_log.Error(e.ToString());
 | |
|             }
 | |
|             finally
 | |
|             {
 | |
|                 if (stream != null)
 | |
|                 {
 | |
|                     stream.Close();
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return ret;
 | |
|         }
 | |
| 
 | |
|         public static string Compress(string text)
 | |
|         {
 | |
|             byte[] buffer = Util.UTF8.GetBytes(text);
 | |
|             MemoryStream memory = new MemoryStream();
 | |
|             using (GZipStream compressor = new GZipStream(memory, CompressionMode.Compress, true))
 | |
|             {
 | |
|                 compressor.Write(buffer, 0, buffer.Length);
 | |
|             }
 | |
| 
 | |
|             memory.Position = 0;
 | |
|            
 | |
|             byte[] compressed = new byte[memory.Length];
 | |
|             memory.Read(compressed, 0, compressed.Length);
 | |
| 
 | |
|             byte[] compressedBuffer = new byte[compressed.Length + 4];
 | |
|             Buffer.BlockCopy(compressed, 0, compressedBuffer, 4, compressed.Length);
 | |
|             Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, compressedBuffer, 0, 4);
 | |
|             return Convert.ToBase64String(compressedBuffer);
 | |
|         }
 | |
| 
 | |
|         public static string Decompress(string compressedText)
 | |
|         {
 | |
|             byte[] compressedBuffer = Convert.FromBase64String(compressedText);
 | |
|             using (MemoryStream memory = new MemoryStream())
 | |
|             {
 | |
|                 int msgLength = BitConverter.ToInt32(compressedBuffer, 0);
 | |
|                 memory.Write(compressedBuffer, 4, compressedBuffer.Length - 4);
 | |
| 
 | |
|                 byte[] buffer = new byte[msgLength];
 | |
| 
 | |
|                 memory.Position = 0;
 | |
|                 using (GZipStream decompressor = new GZipStream(memory, CompressionMode.Decompress))
 | |
|                 {
 | |
|                     decompressor.Read(buffer, 0, buffer.Length);
 | |
|                 }
 | |
| 
 | |
|                 return Util.UTF8.GetString(buffer);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Copy data from one stream to another, leaving the read position of both streams at the beginning.
 | |
|         /// </summary>
 | |
|         /// <param name='inputStream'>
 | |
|         /// Input stream.  Must be seekable.
 | |
|         /// </param>
 | |
|         /// <exception cref='ArgumentException'>
 | |
|         /// Thrown if the input stream is not seekable.
 | |
|         /// </exception>
 | |
|         public static Stream Copy(Stream inputStream)
 | |
|         {
 | |
|             if (!inputStream.CanSeek)
 | |
|                 throw new ArgumentException("Util.Copy(Stream inputStream) must receive an inputStream that can seek");
 | |
| 
 | |
|             const int readSize = 256;
 | |
|             byte[] buffer = new byte[readSize];
 | |
|             MemoryStream ms = new MemoryStream();
 | |
|         
 | |
|             int count = inputStream.Read(buffer, 0, readSize);
 | |
| 
 | |
|             while (count > 0)
 | |
|             {
 | |
|                 ms.Write(buffer, 0, count);
 | |
|                 count = inputStream.Read(buffer, 0, readSize);
 | |
|             }
 | |
| 
 | |
|             ms.Position = 0;
 | |
|             inputStream.Position = 0;
 | |
| 
 | |
|             return ms;
 | |
|         }
 | |
| 
 | |
|         public static XmlRpcResponse XmlRpcCommand(string url, string methodName, params object[] args)
 | |
|         {
 | |
|             return SendXmlRpcCommand(url, methodName, args);
 | |
|         }
 | |
| 
 | |
|         public static XmlRpcResponse SendXmlRpcCommand(string url, string methodName, object[] args)
 | |
|         {
 | |
|             XmlRpcRequest client = new XmlRpcRequest(methodName, args);
 | |
|             return client.Send(url, 6000);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Returns an error message that the user could not be found in the database
 | |
|         /// </summary>
 | |
|         /// <returns>XML string consisting of a error element containing individual error(s)</returns>
 | |
|         public static XmlRpcResponse CreateUnknownUserErrorResponse()
 | |
|         {
 | |
|             XmlRpcResponse response = new XmlRpcResponse();
 | |
|             Hashtable responseData = new Hashtable();
 | |
|             responseData["error_type"] = "unknown_user";
 | |
|             responseData["error_desc"] = "The user requested is not in the database";
 | |
| 
 | |
|             response.Value = responseData;
 | |
|             return response;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Converts a byte array in big endian order into an ulong.
 | |
|         /// </summary>
 | |
|         /// <param name="bytes">
 | |
|         /// The array of bytes
 | |
|         /// </param>
 | |
|         /// <returns>
 | |
|         /// The extracted ulong
 | |
|         /// </returns>
 | |
|         public static ulong BytesToUInt64Big(byte[] bytes)
 | |
|         {
 | |
|             if (bytes.Length < 8) return 0;
 | |
|             return ((ulong)bytes[0] << 56) | ((ulong)bytes[1] << 48) | ((ulong)bytes[2] << 40) | ((ulong)bytes[3] << 32) |
 | |
|                 ((ulong)bytes[4] << 24) | ((ulong)bytes[5] << 16) | ((ulong)bytes[6] << 8) | (ulong)bytes[7];
 | |
|         }
 | |
| 
 | |
|         // used for RemoteParcelRequest (for "About Landmark")
 | |
|         public static UUID BuildFakeParcelID(ulong regionHandle, uint x, uint y)
 | |
|         {
 | |
|             byte[] bytes =
 | |
|             {
 | |
|                 (byte)regionHandle, (byte)(regionHandle >> 8), (byte)(regionHandle >> 16), (byte)(regionHandle >> 24),
 | |
|                 (byte)(regionHandle >> 32), (byte)(regionHandle >> 40), (byte)(regionHandle >> 48), (byte)(regionHandle << 56),
 | |
|                 (byte)x, (byte)(x >> 8), 0, 0,
 | |
|                 (byte)y, (byte)(y >> 8), 0, 0 };
 | |
|             return new UUID(bytes, 0);
 | |
|         }
 | |
| 
 | |
|         public static UUID BuildFakeParcelID(ulong regionHandle, uint x, uint y, uint z)
 | |
|         {
 | |
|             byte[] bytes =
 | |
|             {
 | |
|                 (byte)regionHandle, (byte)(regionHandle >> 8), (byte)(regionHandle >> 16), (byte)(regionHandle >> 24),
 | |
|                 (byte)(regionHandle >> 32), (byte)(regionHandle >> 40), (byte)(regionHandle >> 48), (byte)(regionHandle << 56),
 | |
|                 (byte)x, (byte)(x >> 8), (byte)z, (byte)(z >> 8),
 | |
|                 (byte)y, (byte)(y >> 8), 0, 0 };
 | |
|             return new UUID(bytes, 0);
 | |
|         }
 | |
| 
 | |
|         public static void ParseFakeParcelID(UUID parcelID, out ulong regionHandle, out uint x, out uint y)
 | |
|         {
 | |
|             byte[] bytes = parcelID.GetBytes();
 | |
|             regionHandle = Utils.BytesToUInt64(bytes);
 | |
|             x = Utils.BytesToUInt(bytes, 8) & 0xffff;
 | |
|             y = Utils.BytesToUInt(bytes, 12) & 0xffff;
 | |
|         }
 | |
| 
 | |
|         public static void ParseFakeParcelID(UUID parcelID, out ulong regionHandle, out uint x, out uint y, out uint z)
 | |
|         {
 | |
|             byte[] bytes = parcelID.GetBytes();
 | |
|             regionHandle = Utils.BytesToUInt64(bytes);
 | |
|             x = Utils.BytesToUInt(bytes, 8) & 0xffff;
 | |
|             z = (Utils.BytesToUInt(bytes, 8) & 0xffff0000) >> 16;
 | |
|             y = Utils.BytesToUInt(bytes, 12) & 0xffff;
 | |
|         }
 | |
| 
 | |
|         public static void FakeParcelIDToGlobalPosition(UUID parcelID, out uint x, out uint y)
 | |
|         {
 | |
|             ulong regionHandle;
 | |
|             uint rx, ry;
 | |
| 
 | |
|             ParseFakeParcelID(parcelID, out regionHandle, out x, out y);
 | |
|             Utils.LongToUInts(regionHandle, out rx, out ry);
 | |
| 
 | |
|             x += rx;
 | |
|             y += ry;
 | |
|         }
 | |
|         
 | |
|         /// <summary>
 | |
|         /// Get operating system information if available.  Returns only the first 45 characters of information
 | |
|         /// </summary>
 | |
|         /// <returns>
 | |
|         /// Operating system information.  Returns an empty string if none was available.
 | |
|         /// </returns>
 | |
|         public static string GetOperatingSystemInformation()
 | |
|         {
 | |
|             string os = String.Empty;
 | |
| 
 | |
|             if (Environment.OSVersion.Platform != PlatformID.Unix)
 | |
|             {
 | |
|                 os = Environment.OSVersion.ToString();
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 os = ReadEtcIssue();
 | |
|             }
 | |
|                       
 | |
|             if (os.Length > 45)
 | |
|             {
 | |
|                 os = os.Substring(0, 45);
 | |
|             }
 | |
|             
 | |
|             return os;
 | |
|         }
 | |
| 
 | |
|         public static string GetRuntimeInformation()
 | |
|         {
 | |
|             string ru = String.Empty;
 | |
| 
 | |
|             if (Environment.OSVersion.Platform == PlatformID.Unix)
 | |
|                 ru = "Unix/Mono";
 | |
|             else
 | |
|                 if (Environment.OSVersion.Platform == PlatformID.MacOSX)
 | |
|                     ru = "OSX/Mono";
 | |
|                 else
 | |
|                 {
 | |
|                     if (IsPlatformMono)
 | |
|                         ru = "Win/Mono";
 | |
|                     else
 | |
|                         ru = "Win/.NET";
 | |
|                 }
 | |
| 
 | |
|             return ru;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Is the given string a UUID?
 | |
|         /// </summary>
 | |
|         /// <param name="s"></param>
 | |
|         /// <returns></returns>
 | |
|         public static bool isUUID(string s)
 | |
|         {
 | |
|             return UUIDPattern.IsMatch(s);
 | |
|         }
 | |
| 
 | |
|         public static string GetDisplayConnectionString(string connectionString)
 | |
|         {
 | |
|             int passPosition = 0;
 | |
|             int passEndPosition = 0;
 | |
|             string displayConnectionString = null;
 | |
| 
 | |
|             // hide the password in the connection string
 | |
|             passPosition = connectionString.IndexOf("password", StringComparison.OrdinalIgnoreCase);
 | |
|             passPosition = connectionString.IndexOf("=", passPosition);
 | |
|             if (passPosition < connectionString.Length)
 | |
|                 passPosition += 1;
 | |
|             passEndPosition = connectionString.IndexOf(";", passPosition);
 | |
| 
 | |
|             displayConnectionString = connectionString.Substring(0, passPosition);
 | |
|             displayConnectionString += "***";
 | |
|             displayConnectionString += connectionString.Substring(passEndPosition, connectionString.Length - passEndPosition);
 | |
| 
 | |
|             return displayConnectionString;
 | |
|         }
 | |
| 
 | |
|         public static T ReadSettingsFromIniFile<T>(IConfig config, T settingsClass)
 | |
|         {
 | |
|             Type settingsType = settingsClass.GetType();
 | |
| 
 | |
|             FieldInfo[] fieldInfos = settingsType.GetFields();
 | |
|             foreach (FieldInfo fieldInfo in fieldInfos)
 | |
|             {
 | |
|                 if (!fieldInfo.IsStatic)
 | |
|                 {
 | |
|                     if (fieldInfo.FieldType == typeof(System.String))
 | |
|                     {
 | |
|                         fieldInfo.SetValue(settingsClass, config.Get(fieldInfo.Name, (string)fieldInfo.GetValue(settingsClass)));
 | |
|                     }
 | |
|                     else if (fieldInfo.FieldType == typeof(System.Boolean))
 | |
|                     {
 | |
|                         fieldInfo.SetValue(settingsClass, config.GetBoolean(fieldInfo.Name, (bool)fieldInfo.GetValue(settingsClass)));
 | |
|                     }
 | |
|                     else if (fieldInfo.FieldType == typeof(System.Int32))
 | |
|                     {
 | |
|                         fieldInfo.SetValue(settingsClass, config.GetInt(fieldInfo.Name, (int)fieldInfo.GetValue(settingsClass)));
 | |
|                     }
 | |
|                     else if (fieldInfo.FieldType == typeof(System.Single))
 | |
|                     {
 | |
|                         fieldInfo.SetValue(settingsClass, config.GetFloat(fieldInfo.Name, (float)fieldInfo.GetValue(settingsClass)));
 | |
|                     }
 | |
|                     else if (fieldInfo.FieldType == typeof(System.UInt32))
 | |
|                     {
 | |
|                         fieldInfo.SetValue(settingsClass, Convert.ToUInt32(config.Get(fieldInfo.Name, ((uint)fieldInfo.GetValue(settingsClass)).ToString())));
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             PropertyInfo[] propertyInfos = settingsType.GetProperties();
 | |
|             foreach (PropertyInfo propInfo in propertyInfos)
 | |
|             {
 | |
|                 if ((propInfo.CanRead) && (propInfo.CanWrite))
 | |
|                 {
 | |
|                     if (propInfo.PropertyType == typeof(System.String))
 | |
|                     {
 | |
|                         propInfo.SetValue(settingsClass, config.Get(propInfo.Name, (string)propInfo.GetValue(settingsClass, null)), null);
 | |
|                     }
 | |
|                     else if (propInfo.PropertyType == typeof(System.Boolean))
 | |
|                     {
 | |
|                         propInfo.SetValue(settingsClass, config.GetBoolean(propInfo.Name, (bool)propInfo.GetValue(settingsClass, null)), null);
 | |
|                     }
 | |
|                     else if (propInfo.PropertyType == typeof(System.Int32))
 | |
|                     {
 | |
|                         propInfo.SetValue(settingsClass, config.GetInt(propInfo.Name, (int)propInfo.GetValue(settingsClass, null)), null);
 | |
|                     }
 | |
|                     else if (propInfo.PropertyType == typeof(System.Single))
 | |
|                     {
 | |
|                         propInfo.SetValue(settingsClass, config.GetFloat(propInfo.Name, (float)propInfo.GetValue(settingsClass, null)), null);
 | |
|                     }
 | |
|                     if (propInfo.PropertyType == typeof(System.UInt32))
 | |
|                     {
 | |
|                         propInfo.SetValue(settingsClass, Convert.ToUInt32(config.Get(propInfo.Name, ((uint)propInfo.GetValue(settingsClass, null)).ToString())), null);
 | |
|                     }
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return settingsClass;
 | |
|         }
 | |
| 
 | |
|         public static string Base64ToString(string str)
 | |
|         {
 | |
|             Decoder utf8Decode = Encoding.UTF8.GetDecoder();
 | |
| 
 | |
|             byte[] todecode_byte = Convert.FromBase64String(str);
 | |
|             int charCount = utf8Decode.GetCharCount(todecode_byte, 0, todecode_byte.Length);
 | |
|             char[] decoded_char = new char[charCount];
 | |
|             utf8Decode.GetChars(todecode_byte, 0, todecode_byte.Length, decoded_char, 0);
 | |
|             string result = new String(decoded_char);
 | |
|             return result;
 | |
|         }
 | |
| 
 | |
|         public static Guid GetHashGuid(string data, string salt)
 | |
|         {
 | |
|             byte[] hash = ComputeMD5Hash(data + salt);
 | |
| 
 | |
|             //string s = BitConverter.ToString(hash);
 | |
| 
 | |
|             Guid guid = new Guid(hash);
 | |
| 
 | |
|             return guid;
 | |
|         }
 | |
| 
 | |
|         public static byte ConvertMaturityToAccessLevel(uint maturity)
 | |
|         {
 | |
|             byte retVal = 0;
 | |
|             switch (maturity)
 | |
|             {
 | |
|                 case 0: //PG
 | |
|                     retVal = 13;
 | |
|                     break;
 | |
|                 case 1: //Mature
 | |
|                     retVal = 21;
 | |
|                     break;
 | |
|                 case 2: // Adult
 | |
|                     retVal = 42;
 | |
|                     break;
 | |
|             }
 | |
| 
 | |
|             return retVal;
 | |
| 
 | |
|         }
 | |
| 
 | |
|         public static uint ConvertAccessLevelToMaturity(byte maturity)
 | |
|         {
 | |
|             if (maturity <= 13)
 | |
|                 return 0;
 | |
|             else if (maturity <= 21)
 | |
|                 return 1;
 | |
|             else
 | |
|                 return 2;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Produces an OSDMap from its string representation on a stream
 | |
|         /// </summary>
 | |
|         /// <param name="data">The stream</param>
 | |
|         /// <param name="length">The size of the data on the stream</param>
 | |
|         /// <returns>The OSDMap or an exception</returns>
 | |
|         public static OSDMap GetOSDMap(Stream stream, int length)
 | |
|         {
 | |
|             byte[] data = new byte[length];
 | |
|             stream.Read(data, 0, length);
 | |
|             string strdata = Util.UTF8.GetString(data);
 | |
|             OSDMap args = null;
 | |
|             OSD buffer;
 | |
|             buffer = OSDParser.DeserializeJson(strdata);
 | |
|             if (buffer.Type == OSDType.Map)
 | |
|             {
 | |
|                 args = (OSDMap)buffer;
 | |
|                 return args;
 | |
|             }
 | |
|             return null;
 | |
|         }
 | |
| 
 | |
|         public static OSDMap GetOSDMap(string data)
 | |
|         {
 | |
|             OSDMap args = null;
 | |
|             try
 | |
|             {
 | |
|                 OSD buffer;
 | |
|                 // We should pay attention to the content-type, but let's assume we know it's Json
 | |
|                 buffer = OSDParser.DeserializeJson(data);
 | |
|                 if (buffer.Type == OSDType.Map)
 | |
|                 {
 | |
|                     args = (OSDMap)buffer;
 | |
|                     return args;
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     // uh?
 | |
|                     m_log.Debug(("[UTILS]: Got OSD of unexpected type " + buffer.Type.ToString()));
 | |
|                     return null;
 | |
|                 }
 | |
|             }
 | |
|             catch (Exception ex)
 | |
|             {
 | |
|                 m_log.Debug("[UTILS]: exception on GetOSDMap " + ex.Message);
 | |
|                 return null;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static string[] Glob(string path)
 | |
|         {
 | |
|             string vol=String.Empty;
 | |
| 
 | |
|             if (Path.VolumeSeparatorChar != Path.DirectorySeparatorChar)
 | |
|             {
 | |
|                 string[] vcomps = path.Split(new char[] {Path.VolumeSeparatorChar}, 2, StringSplitOptions.RemoveEmptyEntries);
 | |
| 
 | |
|                 if (vcomps.Length > 1)
 | |
|                 {
 | |
|                     path = vcomps[1];
 | |
|                     vol = vcomps[0];
 | |
|                 }
 | |
|             }
 | |
|             
 | |
|             string[] comps = path.Split(new char[] {Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar}, StringSplitOptions.RemoveEmptyEntries);
 | |
| 
 | |
|             // Glob
 | |
| 
 | |
|             path = vol;
 | |
|             if (vol != String.Empty)
 | |
|                 path += new String(new char[] {Path.VolumeSeparatorChar, Path.DirectorySeparatorChar});
 | |
|             else
 | |
|                 path = new String(new char[] {Path.DirectorySeparatorChar});
 | |
| 
 | |
|             List<string> paths = new List<string>();
 | |
|             List<string> found = new List<string>();
 | |
|             paths.Add(path);
 | |
| 
 | |
|             int compIndex = -1;
 | |
|             foreach (string c in comps)
 | |
|             {
 | |
|                 compIndex++;
 | |
| 
 | |
|                 List<string> addpaths = new List<string>();
 | |
|                 foreach (string p in paths)
 | |
|                 {
 | |
|                     string[] dirs = Directory.GetDirectories(p, c);
 | |
| 
 | |
|                     if (dirs.Length != 0)
 | |
|                     {
 | |
|                         foreach (string dir in dirs)
 | |
|                             addpaths.Add(Path.Combine(path, dir));
 | |
|                     }
 | |
| 
 | |
|                     // Only add files if that is the last path component
 | |
|                     if (compIndex == comps.Length - 1)
 | |
|                     {
 | |
|                         string[] files = Directory.GetFiles(p, c);
 | |
|                         foreach (string f in files)
 | |
|                             found.Add(f);
 | |
|                     }
 | |
|                 }
 | |
|                 paths = addpaths;
 | |
|             }
 | |
| 
 | |
|             return found.ToArray();
 | |
|         }
 | |
| 
 | |
|         public static string ServerURI(string uri)
 | |
|         {
 | |
|             if (uri == string.Empty)
 | |
|                 return string.Empty;
 | |
| 
 | |
|             // Get rid of eventual slashes at the end
 | |
|             uri = uri.TrimEnd('/');
 | |
| 
 | |
|             IPAddress ipaddr1 = null;
 | |
|             string port1 = "";
 | |
|             try
 | |
|             {
 | |
|                 ipaddr1 = Util.GetHostFromURL(uri);
 | |
|             }
 | |
|             catch { }
 | |
| 
 | |
|             try
 | |
|             {
 | |
|                 port1 = uri.Split(new char[] { ':' })[2];
 | |
|             }
 | |
|             catch { }
 | |
| 
 | |
|             // We tried our best to convert the domain names to IP addresses
 | |
|             return (ipaddr1 != null) ? "http://" + ipaddr1.ToString() + ":" + port1 : uri;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert a string to a byte format suitable for transport in an LLUDP packet.  The output is truncated to 256 bytes if necessary.
 | |
|         /// </summary>
 | |
|         /// <param name="str">
 | |
|         /// If null or empty, then an bytes[0] is returned.
 | |
|         /// Using "\0" will return a conversion of the null character to a byte.  This is not the same as bytes[0]
 | |
|         /// </param>
 | |
|         /// <param name="args">
 | |
|         /// Arguments to substitute into the string via the {} mechanism.
 | |
|         /// </param>
 | |
|         /// <returns></returns>
 | |
|         public static byte[] StringToBytes256(string str, params object[] args)
 | |
|         {
 | |
|             return StringToBytes256(string.Format(str, args));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert a string to a byte format suitable for transport in an LLUDP packet.  The output is truncated to 256 bytes if necessary.
 | |
|         /// </summary>
 | |
|         /// <param name="str">
 | |
|         /// If null or empty, then an bytes[0] is returned.
 | |
|         /// Using "\0" will return a conversion of the null character to a byte.  This is not the same as bytes[0]
 | |
|         /// </param>
 | |
|         /// <returns></returns>
 | |
|         public static byte[] StringToBytes256(string str)
 | |
|         {
 | |
|             if (String.IsNullOrEmpty(str)) { return Utils.EmptyBytes; }
 | |
|             if (str.Length > 254) str = str.Remove(254);
 | |
|             if (!str.EndsWith("\0")) { str += "\0"; }
 | |
|             
 | |
|             // Because this is UTF-8 encoding and not ASCII, it's possible we
 | |
|             // might have gotten an oversized array even after the string trim
 | |
|             byte[] data = UTF8.GetBytes(str);
 | |
|             if (data.Length > 256)
 | |
|             {
 | |
|                 Array.Resize<byte>(ref data, 256);
 | |
|                 data[255] = 0;
 | |
|             }
 | |
| 
 | |
|             return data;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert a string to a byte format suitable for transport in an LLUDP packet.  The output is truncated to 1024 bytes if necessary.
 | |
|         /// </summary>
 | |
|         /// <param name="str">
 | |
|         /// If null or empty, then an bytes[0] is returned.
 | |
|         /// Using "\0" will return a conversion of the null character to a byte.  This is not the same as bytes[0]
 | |
|         /// </param>
 | |
|         /// <param name="args">
 | |
|         /// Arguments to substitute into the string via the {} mechanism.
 | |
|         /// </param>
 | |
|         /// <returns></returns>
 | |
|         public static byte[] StringToBytes1024(string str, params object[] args)
 | |
|         {
 | |
|             return StringToBytes1024(string.Format(str, args));
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Convert a string to a byte format suitable for transport in an LLUDP packet.  The output is truncated to 1024 bytes if necessary.
 | |
|         /// </summary>
 | |
|         /// <param name="str">
 | |
|         /// If null or empty, then an bytes[0] is returned.
 | |
|         /// Using "\0" will return a conversion of the null character to a byte.  This is not the same as bytes[0]
 | |
|         /// </param>
 | |
|         /// <returns></returns>
 | |
|         public static byte[] StringToBytes1024(string str)
 | |
|         {
 | |
|             if (String.IsNullOrEmpty(str)) { return Utils.EmptyBytes; }
 | |
|             if (str.Length > 1023) str = str.Remove(1023);
 | |
|             if (!str.EndsWith("\0")) { str += "\0"; }
 | |
| 
 | |
|             // Because this is UTF-8 encoding and not ASCII, it's possible we
 | |
|             // might have gotten an oversized array even after the string trim
 | |
|             byte[] data = UTF8.GetBytes(str);
 | |
|             if (data.Length > 1024)
 | |
|             {
 | |
|                 Array.Resize<byte>(ref data, 1024);
 | |
|                 data[1023] = 0;
 | |
|             }
 | |
| 
 | |
|             return data;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Used to trigger an early library load on Windows systems.
 | |
|         /// </summary>
 | |
|         /// <remarks>
 | |
|         /// Required to get 32-bit and 64-bit processes to automatically use the
 | |
|         /// appropriate native library.
 | |
|         /// </remarks>
 | |
|         /// <param name="dllToLoad"></param>
 | |
|         /// <returns></returns>
 | |
|         [DllImport("kernel32.dll")]
 | |
|         public static extern IntPtr LoadLibrary(string dllToLoad);
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Determine whether the current process is 64 bit
 | |
|         /// </summary>
 | |
|         /// <returns>true if so, false if not</returns>
 | |
|         public static bool Is64BitProcess()
 | |
|         {
 | |
|             return IntPtr.Size == 8;
 | |
|         }
 | |
| 
 | |
|         #region FireAndForget Threading Pattern
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Created to work around a limitation in Mono with nested delegates
 | |
|         /// </summary>
 | |
|         private sealed class FireAndForgetWrapper
 | |
|         {
 | |
|             private static volatile FireAndForgetWrapper instance;
 | |
|             private static object syncRoot = new Object();
 | |
| 
 | |
|             public static FireAndForgetWrapper Instance {
 | |
|                 get {
 | |
| 
 | |
|                     if (instance == null)
 | |
|                     {
 | |
|                         lock (syncRoot)
 | |
|                         {
 | |
|                             if (instance == null)
 | |
|                             {
 | |
|                                 instance = new FireAndForgetWrapper();
 | |
|                             }
 | |
|                         }
 | |
|                     }
 | |
| 
 | |
|                     return instance;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             public void FireAndForget(System.Threading.WaitCallback callback)
 | |
|             {
 | |
|                 callback.BeginInvoke(null, EndFireAndForget, callback);
 | |
|             }
 | |
| 
 | |
|             public void FireAndForget(System.Threading.WaitCallback callback, object obj)
 | |
|             {
 | |
|                 callback.BeginInvoke(obj, EndFireAndForget, callback);
 | |
|             }
 | |
| 
 | |
|             private static void EndFireAndForget(IAsyncResult ar)
 | |
|             {
 | |
|                 System.Threading.WaitCallback callback = (System.Threading.WaitCallback)ar.AsyncState;
 | |
| 
 | |
|                 try { callback.EndInvoke(ar); }
 | |
|                 catch (Exception ex) { m_log.Error("[UTIL]: Asynchronous method threw an exception: " + ex.Message, ex); }
 | |
| 
 | |
|                 ar.AsyncWaitHandle.Close();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void FireAndForget(System.Threading.WaitCallback callback)
 | |
|         {
 | |
|             FireAndForget(callback, null);
 | |
|         }
 | |
| 
 | |
|         public static void InitThreadPool(int minThreads, int maxThreads)
 | |
|         {
 | |
|             if (maxThreads < 2)
 | |
|                 throw new ArgumentOutOfRangeException("maxThreads", "maxThreads must be greater than 2");
 | |
|             if (minThreads > maxThreads || minThreads < 2)
 | |
|                 throw new ArgumentOutOfRangeException("minThreads", "minThreads must be greater than 2 and less than or equal to maxThreads");
 | |
|             if (m_ThreadPool != null)
 | |
|                 throw new InvalidOperationException("SmartThreadPool is already initialized");
 | |
| 
 | |
|             STPStartInfo startInfo = new STPStartInfo();
 | |
|             startInfo.ThreadPoolName = "Util";
 | |
|             startInfo.IdleTimeout = 2000;
 | |
|             startInfo.MaxWorkerThreads = maxThreads;
 | |
|             startInfo.MinWorkerThreads = 2;
 | |
|             startInfo.MinWorkerThreads = minThreads;
 | |
| 
 | |
|             m_ThreadPool = new SmartThreadPool(startInfo);
 | |
|         }
 | |
| 
 | |
|         public static int FireAndForgetCount()
 | |
|         {
 | |
|             const int MAX_SYSTEM_THREADS = 200;
 | |
| 
 | |
|             switch (FireAndForgetMethod)
 | |
|             {
 | |
|                 case FireAndForgetMethod.UnsafeQueueUserWorkItem:
 | |
|                 case FireAndForgetMethod.QueueUserWorkItem:
 | |
|                 case FireAndForgetMethod.BeginInvoke:
 | |
|                     int workerThreads, iocpThreads;
 | |
|                     ThreadPool.GetAvailableThreads(out workerThreads, out iocpThreads);
 | |
|                     return workerThreads;
 | |
|                 case FireAndForgetMethod.SmartThreadPool:
 | |
|                     return m_ThreadPool.MaxThreads - m_ThreadPool.InUseThreads;
 | |
|                 case FireAndForgetMethod.Thread:
 | |
|                     return MAX_SYSTEM_THREADS - System.Diagnostics.Process.GetCurrentProcess().Threads.Count;
 | |
|                 default:
 | |
|                     throw new NotImplementedException();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void FireAndForget(System.Threading.WaitCallback callback, object obj)
 | |
|         {
 | |
|             WaitCallback realCallback;
 | |
| 
 | |
|             if (FireAndForgetMethod == FireAndForgetMethod.RegressionTest)
 | |
|             {
 | |
|                 // If we're running regression tests, then we want any exceptions to rise up to the test code.
 | |
|                 realCallback = o => { Culture.SetCurrentCulture(); callback(o); };
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 // When OpenSim interacts with a database or sends data over the wire, it must send this in en_US culture
 | |
|                 // so that we don't encounter problems where, for instance, data is saved with a culture that uses commas
 | |
|                 // for decimals places but is read by a culture that treats commas as number seperators.
 | |
|                 realCallback = o =>
 | |
|                 {
 | |
|                     Culture.SetCurrentCulture();
 | |
| 
 | |
|                     try
 | |
|                     {
 | |
|                         callback(o);
 | |
|                     }
 | |
|                     catch (Exception e)
 | |
|                     {
 | |
|                         m_log.ErrorFormat(
 | |
|                             "[UTIL]: Continuing after async_call_method thread terminated with exception {0}{1}",
 | |
|                             e.Message, e.StackTrace);
 | |
|                     }
 | |
|                 };
 | |
|             }
 | |
| 
 | |
|             switch (FireAndForgetMethod)
 | |
|             {
 | |
|                 case FireAndForgetMethod.RegressionTest:
 | |
|                 case FireAndForgetMethod.None:
 | |
|                     realCallback.Invoke(obj);
 | |
|                     break;
 | |
|                 case FireAndForgetMethod.UnsafeQueueUserWorkItem:
 | |
|                     ThreadPool.UnsafeQueueUserWorkItem(realCallback, obj);
 | |
|                     break;
 | |
|                 case FireAndForgetMethod.QueueUserWorkItem:
 | |
|                     ThreadPool.QueueUserWorkItem(realCallback, obj);
 | |
|                     break;
 | |
|                 case FireAndForgetMethod.BeginInvoke:
 | |
|                     FireAndForgetWrapper wrapper = FireAndForgetWrapper.Instance;
 | |
|                     wrapper.FireAndForget(realCallback, obj);
 | |
|                     break;
 | |
|                 case FireAndForgetMethod.SmartThreadPool:
 | |
|                     if (m_ThreadPool == null)
 | |
|                         InitThreadPool(2, 15); 
 | |
|                     m_ThreadPool.QueueWorkItem((cb, o) => cb(o), realCallback, obj);
 | |
|                     break;
 | |
|                 case FireAndForgetMethod.Thread:
 | |
|                     Thread thread = new Thread(delegate(object o) { realCallback(o); });
 | |
|                     thread.Start(obj);
 | |
|                     break;
 | |
|                 default:
 | |
|                     throw new NotImplementedException();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Get information about the current state of the smart thread pool.
 | |
|         /// </summary>
 | |
|         /// <returns>
 | |
|         /// null if this isn't the pool being used for non-scriptengine threads.
 | |
|         /// </returns>
 | |
|         public static STPInfo GetSmartThreadPoolInfo()
 | |
|         {
 | |
|             if (m_ThreadPool == null)
 | |
|                 return null;
 | |
| 
 | |
|             STPInfo stpi = new STPInfo();
 | |
|             stpi.Name = m_ThreadPool.Name;
 | |
|             stpi.STPStartInfo = m_ThreadPool.STPStartInfo;
 | |
|             stpi.IsIdle = m_ThreadPool.IsIdle;
 | |
|             stpi.IsShuttingDown = m_ThreadPool.IsShuttingdown;
 | |
|             stpi.MaxThreads = m_ThreadPool.MaxThreads;
 | |
|             stpi.MinThreads = m_ThreadPool.MinThreads;
 | |
|             stpi.InUseThreads = m_ThreadPool.InUseThreads;
 | |
|             stpi.ActiveThreads = m_ThreadPool.ActiveThreads;
 | |
|             stpi.WaitingCallbacks = m_ThreadPool.WaitingCallbacks;
 | |
|             stpi.MaxConcurrentWorkItems = m_ThreadPool.Concurrency;
 | |
| 
 | |
|             return stpi;
 | |
|         }
 | |
| 
 | |
|         #endregion FireAndForget Threading Pattern
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Environment.TickCount is an int but it counts all 32 bits so it goes positive
 | |
|         /// and negative every 24.9 days. This trims down TickCount so it doesn't wrap
 | |
|         /// for the callers. 
 | |
|         /// This trims it to a 12 day interval so don't let your frame time get too long.
 | |
|         /// </summary>
 | |
|         /// <returns></returns>
 | |
|         public static Int32 EnvironmentTickCount()
 | |
|         {
 | |
|             return Environment.TickCount & EnvironmentTickCountMask;
 | |
|         }
 | |
|         const Int32 EnvironmentTickCountMask = 0x3fffffff;
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Environment.TickCount is an int but it counts all 32 bits so it goes positive
 | |
|         /// and negative every 24.9 days. Subtracts the passed value (previously fetched by
 | |
|         /// 'EnvironmentTickCount()') and accounts for any wrapping.
 | |
|         /// </summary>
 | |
|         /// <param name="newValue"></param>
 | |
|         /// <param name="prevValue"></param>
 | |
|         /// <returns>subtraction of passed prevValue from current Environment.TickCount</returns>
 | |
|         public static Int32 EnvironmentTickCountSubtract(Int32 newValue, Int32 prevValue)
 | |
|         {
 | |
|             Int32 diff = newValue - prevValue;
 | |
|             return (diff >= 0) ? diff : (diff + EnvironmentTickCountMask + 1);
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Environment.TickCount is an int but it counts all 32 bits so it goes positive
 | |
|         /// and negative every 24.9 days. Subtracts the passed value (previously fetched by
 | |
|         /// 'EnvironmentTickCount()') and accounts for any wrapping.
 | |
|         /// </summary>
 | |
|         /// <returns>subtraction of passed prevValue from current Environment.TickCount</returns>
 | |
|         public static Int32 EnvironmentTickCountSubtract(Int32 prevValue)
 | |
|         {
 | |
|             return EnvironmentTickCountSubtract(EnvironmentTickCount(), prevValue);
 | |
|         }
 | |
| 
 | |
|         // Returns value of Tick Count A - TickCount B accounting for wrapping of TickCount
 | |
|         // Assumes both tcA and tcB came from previous calls to Util.EnvironmentTickCount().
 | |
|         // A positive return value indicates A occured later than B
 | |
|         public static Int32 EnvironmentTickCountCompare(Int32 tcA, Int32 tcB)
 | |
|         {
 | |
|             // A, B and TC are all between 0 and 0x3fffffff
 | |
|             int tc = EnvironmentTickCount();
 | |
| 
 | |
|             if (tc - tcA >= 0)
 | |
|                 tcA += EnvironmentTickCountMask + 1;
 | |
| 
 | |
|             if (tc - tcB >= 0)
 | |
|                 tcB += EnvironmentTickCountMask + 1;
 | |
| 
 | |
|             return tcA - tcB;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Prints the call stack at any given point. Useful for debugging.
 | |
|         /// </summary>
 | |
|         public static void PrintCallStack()
 | |
|         {
 | |
|             PrintCallStack(m_log.DebugFormat);
 | |
|         }
 | |
| 
 | |
|         public delegate void DebugPrinter(string msg, params Object[] parm);
 | |
|         public static void PrintCallStack(DebugPrinter printer)
 | |
|         {
 | |
|             StackTrace stackTrace = new StackTrace(true);           // get call stack
 | |
|             StackFrame[] stackFrames = stackTrace.GetFrames();  // get method calls (frames)
 | |
| 
 | |
|             // write call stack method names
 | |
|             foreach (StackFrame stackFrame in stackFrames)
 | |
|             {
 | |
|                 MethodBase mb = stackFrame.GetMethod();
 | |
|                 printer("{0}.{1}:{2}", mb.DeclaringType, mb.Name, stackFrame.GetFileLineNumber()); // write method name
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Gets the client IP address
 | |
|         /// </summary>
 | |
|         /// <param name="xff"></param>
 | |
|         /// <returns></returns>
 | |
|         public static IPEndPoint GetClientIPFromXFF(string xff)
 | |
|         {
 | |
|             if (xff == string.Empty)
 | |
|                 return null;
 | |
| 
 | |
|             string[] parts = xff.Split(new char[] { ',' });
 | |
|             if (parts.Length > 0)
 | |
|             {
 | |
|                 try
 | |
|                 {
 | |
|                     return new IPEndPoint(IPAddress.Parse(parts[0]), 0);
 | |
|                 }
 | |
|                 catch (Exception e)
 | |
|                 {
 | |
|                     m_log.WarnFormat("[UTIL]: Exception parsing XFF header {0}: {1}", xff, e.Message);
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             return null;
 | |
|         }
 | |
| 
 | |
|         public static string GetCallerIP(Hashtable req)
 | |
|         {
 | |
|             if (req.ContainsKey("headers"))
 | |
|             {
 | |
|                 try
 | |
|                 {
 | |
|                     Hashtable headers = (Hashtable)req["headers"];
 | |
|                     if (headers.ContainsKey("remote_addr") && headers["remote_addr"] != null)
 | |
|                         return headers["remote_addr"].ToString();
 | |
|                 }
 | |
|                 catch (Exception e)
 | |
|                 {
 | |
|                     m_log.WarnFormat("[UTIL]: exception in GetCallerIP: {0}", e.Message);
 | |
|                 }
 | |
|             }
 | |
|             return string.Empty;
 | |
|         }
 | |
| 
 | |
|         #region Xml Serialization Utilities
 | |
|         public static bool ReadBoolean(XmlTextReader reader)
 | |
|         {
 | |
|             reader.ReadStartElement();
 | |
|             bool result = Boolean.Parse(reader.ReadContentAsString().ToLower());
 | |
|             reader.ReadEndElement();
 | |
| 
 | |
|             return result;
 | |
|         }
 | |
| 
 | |
|         public static UUID ReadUUID(XmlTextReader reader, string name)
 | |
|         {
 | |
|             UUID id;
 | |
|             string idStr;
 | |
| 
 | |
|             reader.ReadStartElement(name);
 | |
| 
 | |
|             if (reader.Name == "Guid")
 | |
|                 idStr = reader.ReadElementString("Guid");
 | |
|             else if (reader.Name == "UUID")
 | |
|                 idStr = reader.ReadElementString("UUID");
 | |
|             else // no leading tag
 | |
|                 idStr = reader.ReadContentAsString();
 | |
|             UUID.TryParse(idStr, out id);
 | |
|             reader.ReadEndElement();
 | |
| 
 | |
|             return id;
 | |
|         }
 | |
| 
 | |
|         public static Vector3 ReadVector(XmlTextReader reader, string name)
 | |
|         {
 | |
|             Vector3 vec;
 | |
| 
 | |
|             reader.ReadStartElement(name);
 | |
|             vec.X = reader.ReadElementContentAsFloat(reader.Name, String.Empty); // X or x
 | |
|             vec.Y = reader.ReadElementContentAsFloat(reader.Name, String.Empty); // Y or y
 | |
|             vec.Z = reader.ReadElementContentAsFloat(reader.Name, String.Empty); // Z or z
 | |
|             reader.ReadEndElement();
 | |
| 
 | |
|             return vec;
 | |
|         }
 | |
| 
 | |
|         public static Quaternion ReadQuaternion(XmlTextReader reader, string name)
 | |
|         {
 | |
|             Quaternion quat = new Quaternion();
 | |
| 
 | |
|             reader.ReadStartElement(name);
 | |
|             while (reader.NodeType != XmlNodeType.EndElement)
 | |
|             {
 | |
|                 switch (reader.Name.ToLower())
 | |
|                 {
 | |
|                     case "x":
 | |
|                         quat.X = reader.ReadElementContentAsFloat(reader.Name, String.Empty);
 | |
|                         break;
 | |
|                     case "y":
 | |
|                         quat.Y = reader.ReadElementContentAsFloat(reader.Name, String.Empty);
 | |
|                         break;
 | |
|                     case "z":
 | |
|                         quat.Z = reader.ReadElementContentAsFloat(reader.Name, String.Empty);
 | |
|                         break;
 | |
|                     case "w":
 | |
|                         quat.W = reader.ReadElementContentAsFloat(reader.Name, String.Empty);
 | |
|                         break;
 | |
|                 }
 | |
|             }
 | |
| 
 | |
|             reader.ReadEndElement();
 | |
| 
 | |
|             return quat;
 | |
|         }
 | |
| 
 | |
|         public static T ReadEnum<T>(XmlTextReader reader, string name)
 | |
|         {
 | |
|             string value = reader.ReadElementContentAsString(name, String.Empty);
 | |
|             // !!!!! to deal with flags without commas
 | |
|             if (value.Contains(" ") && !value.Contains(","))
 | |
|                 value = value.Replace(" ", ", ");
 | |
| 
 | |
|             return (T)Enum.Parse(typeof(T), value); ;
 | |
|         }
 | |
|         #endregion
 | |
| 
 | |
|         #region Universal User Identifiers
 | |
|        /// <summary>
 | |
|         /// </summary>
 | |
|         /// <param name="value">uuid[;endpoint[;first last[;secret]]]</param>
 | |
|         /// <param name="uuid">the uuid part</param>
 | |
|         /// <param name="url">the endpoint part (e.g. http://foo.com)</param>
 | |
|         /// <param name="firstname">the first name part (e.g. Test)</param>
 | |
|         /// <param name="lastname">the last name part (e.g User)</param>
 | |
|         /// <param name="secret">the secret part</param>
 | |
|         public static bool ParseUniversalUserIdentifier(string value, out UUID uuid, out string url, out string firstname, out string lastname, out string secret)
 | |
|         {
 | |
|             uuid = UUID.Zero; url = string.Empty; firstname = "Unknown"; lastname = "UserUPUUI"; secret = string.Empty;
 | |
| 
 | |
|             string[] parts = value.Split(';');
 | |
|             if (parts.Length >= 1)
 | |
|                 if (!UUID.TryParse(parts[0], out uuid))
 | |
|                     return false;
 | |
| 
 | |
|             if (parts.Length >= 2)
 | |
|                 url = parts[1];
 | |
| 
 | |
|             if (parts.Length >= 3)
 | |
|             {
 | |
|                 string[] name = parts[2].Split();
 | |
|                 if (name.Length == 2)
 | |
|                 {
 | |
|                     firstname = name[0];
 | |
|                     lastname = name[1];
 | |
|                 }
 | |
|             }
 | |
|             if (parts.Length >= 4)
 | |
|                 secret = parts[3];
 | |
| 
 | |
|             return true;
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Produces a universal (HG) system-facing identifier given the information
 | |
|         /// </summary>
 | |
|         /// <param name="acircuit"></param>
 | |
|         /// <returns>uuid[;homeURI[;first last]]</returns>
 | |
|         public static string ProduceUserUniversalIdentifier(AgentCircuitData acircuit)
 | |
|         {
 | |
|             if (acircuit.ServiceURLs.ContainsKey("HomeURI"))
 | |
|                 return UniversalIdentifier(acircuit.AgentID, acircuit.firstname, acircuit.lastname, acircuit.ServiceURLs["HomeURI"].ToString());
 | |
|             else
 | |
|                 return acircuit.AgentID.ToString();
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Produces a universal (HG) system-facing identifier given the information
 | |
|         /// </summary>
 | |
|         /// <param name="id">UUID of the user</param>
 | |
|         /// <param name="firstName">first name (e.g Test)</param>
 | |
|         /// <param name="lastName">last name (e.g. User)</param>
 | |
|         /// <param name="homeURI">homeURI (e.g. http://foo.com)</param>
 | |
|         /// <returns>a string of the form uuid[;homeURI[;first last]]</returns>
 | |
|         public static string UniversalIdentifier(UUID id, String firstName, String lastName, String homeURI)
 | |
|         {
 | |
|             string agentsURI = homeURI;
 | |
|             if (!agentsURI.EndsWith("/"))
 | |
|                 agentsURI += "/";
 | |
| 
 | |
|             // This is ugly, but there's no other way, given that the name is changed
 | |
|             // in the agent circuit data for foreigners
 | |
|             if (lastName.Contains("@"))
 | |
|             {
 | |
|                 string[] parts = firstName.Split(new char[] { '.' });
 | |
|                 if (parts.Length == 2)
 | |
|                     return id.ToString() + ";" + agentsURI + ";" + parts[0] + " " + parts[1];
 | |
|             }
 | |
|             return id.ToString() + ";" + agentsURI + ";" + firstName + " " + lastName;
 | |
| 
 | |
|         }
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Produces a universal (HG) user-facing name given the information
 | |
|         /// </summary>
 | |
|         /// <param name="firstName"></param>
 | |
|         /// <param name="lastName"></param>
 | |
|         /// <param name="homeURI"></param>
 | |
|         /// <returns>string of the form first.last @foo.com or first last</returns>
 | |
|         public static string UniversalName(String firstName, String lastName, String homeURI)
 | |
|         {
 | |
|             Uri uri = null;
 | |
|             try
 | |
|             {
 | |
|                 uri = new Uri(homeURI);
 | |
|             }
 | |
|             catch (UriFormatException)
 | |
|             {
 | |
|                 return firstName + " " + lastName;
 | |
|             }
 | |
|             return firstName + "." + lastName + " " + "@" + uri.Authority;
 | |
|         }
 | |
|         #endregion
 | |
| 
 | |
|         /// <summary>
 | |
|         /// Escapes the special characters used in "LIKE".
 | |
|         /// </summary>
 | |
|         /// <remarks>
 | |
|         /// For example: EscapeForLike("foo_bar%baz") = "foo\_bar\%baz"
 | |
|         /// </remarks>
 | |
|         public static string EscapeForLike(string str)
 | |
|         {
 | |
|             return str.Replace("_", "\\_").Replace("%", "\\%");
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     public class DoubleQueue<T> where T:class
 | |
|     {
 | |
|         private Queue<T> m_lowQueue = new Queue<T>();
 | |
|         private Queue<T> m_highQueue = new Queue<T>();
 | |
| 
 | |
|         private object m_syncRoot = new object();
 | |
|         private Semaphore m_s = new Semaphore(0, 1);
 | |
| 
 | |
|         public DoubleQueue()
 | |
|         {
 | |
|         }
 | |
| 
 | |
|         public virtual int Count
 | |
|         {
 | |
|             get { return m_highQueue.Count + m_lowQueue.Count; }
 | |
|         }
 | |
| 
 | |
|         public virtual void Enqueue(T data)
 | |
|         {
 | |
|             Enqueue(m_lowQueue, data);
 | |
|         }
 | |
| 
 | |
|         public virtual void EnqueueLow(T data)
 | |
|         {
 | |
|             Enqueue(m_lowQueue, data);
 | |
|         }
 | |
| 
 | |
|         public virtual void EnqueueHigh(T data)
 | |
|         {
 | |
|             Enqueue(m_highQueue, data);
 | |
|         }
 | |
| 
 | |
|         private void Enqueue(Queue<T> q, T data)
 | |
|         {
 | |
|             lock (m_syncRoot)
 | |
|             {
 | |
|                 m_lowQueue.Enqueue(data);
 | |
|                 m_s.WaitOne(0);
 | |
|                 m_s.Release();
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public virtual T Dequeue()
 | |
|         {
 | |
|             return Dequeue(Timeout.Infinite);
 | |
|         }
 | |
| 
 | |
|         public virtual T Dequeue(int tmo)
 | |
|         {
 | |
|             return Dequeue(TimeSpan.FromMilliseconds(tmo));
 | |
|         }
 | |
| 
 | |
|         public virtual T Dequeue(TimeSpan wait)
 | |
|         {
 | |
|             T res = null;
 | |
| 
 | |
|             if (!Dequeue(wait, ref res))
 | |
|                 return null;
 | |
| 
 | |
|             return res;
 | |
|         }
 | |
| 
 | |
|         public bool Dequeue(int timeout, ref T res)
 | |
|         {
 | |
|             return Dequeue(TimeSpan.FromMilliseconds(timeout), ref res);
 | |
|         }
 | |
| 
 | |
|         public bool Dequeue(TimeSpan wait, ref T res)
 | |
|         {
 | |
|             if (!m_s.WaitOne(wait))
 | |
|                 return false;
 | |
| 
 | |
|             lock (m_syncRoot)
 | |
|             {
 | |
|                 if (m_highQueue.Count > 0)
 | |
|                     res = m_highQueue.Dequeue();
 | |
|                 else if (m_lowQueue.Count > 0)
 | |
|                     res = m_lowQueue.Dequeue();
 | |
| 
 | |
|                 if (m_highQueue.Count == 0 && m_lowQueue.Count == 0)
 | |
|                     return true;
 | |
| 
 | |
|                 try
 | |
|                 {
 | |
|                     m_s.Release();
 | |
|                 }
 | |
|                 catch
 | |
|                 {
 | |
|                 }
 | |
| 
 | |
|                 return true;
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public virtual void Clear()
 | |
|         {
 | |
| 
 | |
|             lock (m_syncRoot)
 | |
|             {
 | |
|                 // Make sure sem count is 0
 | |
|                 m_s.WaitOne(0);
 | |
| 
 | |
|                 m_lowQueue.Clear();
 | |
|                 m_highQueue.Clear();
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| }
 |