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- /*
- * Copyright (c) Contributors, http://opensimulator.org/
- * See CONTRIBUTORS.TXT for a full list of copyright holders.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the OpenSimulator Project nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.Data;
- using System.Globalization;
- using System.IO;
- using System.IO.Compression;
- using System.Net;
- using System.Net.Sockets;
- using System.Reflection;
- 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 Nini.Config;
- using Nwc.XmlRpc;
- using BclExtras;
- using OpenMetaverse;
- using OpenMetaverse.StructuredData;
- using Amib.Threading;
- namespace OpenSim.Framework
- {
- /// <summary>
- /// The method used by Util.FireAndForget for asynchronously firing events
- /// </summary>
- public enum FireAndForgetMethod
- {
- UnsafeQueueUserWorkItem,
- QueueUserWorkItem,
- BeginInvoke,
- SmartThreadPool,
- Thread,
- }
- /// <summary>
- /// Miscellaneous utility functions
- /// </summary>
- public class Util
- {
- private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
- private static uint nextXferID = 5000;
- private static Random randomClass = new Random();
- // 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()) + "]";
- private static object XferLock = new object();
- /// <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 =
- DateTime.ParseExact("1970-01-01 00:00:00 +0", "yyyy-MM-dd hh:mm:ss z", DateTimeFormatInfo.InvariantInfo).ToUniversalTime();
- public static readonly Regex UUIDPattern
- = new Regex("^[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 FireAndForgetMethod FireAndForgetMethod = FireAndForgetMethod.SmartThreadPool;
- /// <summary>
- /// Linear interpolates B<->C using percent A
- /// </summary>
- /// <param name="a"></param>
- /// <param name="b"></param>
- /// <param name="c"></param>
- /// <returns></returns>
- 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>
- /// <param name="b"></param>
- /// <param name="c"></param>
- /// <param name="d"></param>
- /// <returns></returns>
- public static double lerp2D(double x, double y, double a, double b, double c, double d)
- {
- return lerp(y, lerp(x, a, b), lerp(x, c, d));
- }
- public static Encoding UTF8 = Encoding.UTF8;
- /// <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");
- #region Vector Equations
- /// <summary>
- /// Get the distance between two 3d vectors
- /// </summary>
- /// <param name="a">A 3d vector</param>
- /// <param name="b">A 3d vector</param>
- /// <returns>The distance between the two vectors</returns>
- public static double GetDistanceTo(Vector3 a, Vector3 b)
- {
- float dx = a.X - b.X;
- float dy = a.Y - b.Y;
- float dz = a.Z - b.Z;
- return Math.Sqrt(dx * dx + dy * dy + dz * dz);
- }
- /// <summary>
- /// Returns true if the distance beween A and B is less than amount. Significantly faster than GetDistanceTo since it eliminates the Sqrt.
- /// </summary>
- /// <param name="a"></param>
- /// <param name="b"></param>
- /// <param name="amount"></param>
- /// <returns></returns>
- public static bool DistanceLessThan(Vector3 a, Vector3 b, double amount)
- {
- float dx = a.X - b.X;
- float dy = a.Y - b.Y;
- float dz = a.Z - b.Z;
- return (dx*dx + dy*dy + dz*dz) < (amount*amount);
- }
- /// <summary>
- /// Get the magnitude of a 3d vector
- /// </summary>
- /// <param name="a">A 3d vector</param>
- /// <returns>The magnitude of the vector</returns>
- public static double GetMagnitude(Vector3 a)
- {
- 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;
- }
- 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 unbroken strings of XML into something human readable for occasional debugging purposes.
- ///
- /// Please don't delete me even if I appear currently unused!
- /// </summary>
- /// <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();
- }
- 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 of the given string
- /// </summary>
- /// <param name="data"></param>
- /// <returns></returns>
- public static string SHA1Hash(string data)
- {
- byte[] hash = ComputeSHA1Hash(data);
- return BitConverter.ToString(hash).Replace("-", String.Empty);
- }
- private static byte[] ComputeSHA1Hash(string src)
- {
- SHA1CryptoServiceProvider SHA1 = new SHA1CryptoServiceProvider();
- return SHA1.ComputeHash(Encoding.Default.GetBytes(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));
- }
- public static bool IsOutsideView(uint oldx, uint newx, uint oldy, uint newy)
- {
- // Eventually this will be a function of the draw distance / camera position too.
- return (((int)Math.Abs((int)(oldx - newx)) > 1) || ((int)Math.Abs((int)(oldy - newy)) > 1));
- }
- 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.ErrorFormat("[UTIL]: An error occurred while resolving {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()
- {
- string dnsAddress = "localhost";
- IPAddress[] hosts = Dns.GetHostEntry(dnsAddress).AddressList;
- foreach (IPAddress host in hosts)
- {
- if (!IPAddress.IsLoopback(host) && host.AddressFamily == AddressFamily.InterNetwork)
- {
- return host;
- }
- }
- if (hosts.Length > 0)
- {
- foreach (IPAddress host in hosts)
- {
- if (host.AddressFamily == AddressFamily.InterNetwork)
- return host;
- }
- // Well all else failed...
- return hosts[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 logDir()
- {
- return ".";
- }
- // 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;
- }
- // 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 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);
- }
- /// <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);
- }
- }
- 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;
- }
- /// <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)
- {
- UTF8Encoding encoder = new UTF8Encoding();
- Decoder utf8Decode = encoder.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;
- }
- /// <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 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;
- }
- 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;
- }
- 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;
- }
- #region FireAndForget Threading Pattern
- /// <summary>
- /// Created to work around a limitation in Mono with nested delegates
- /// </summary>
- private class FireAndForgetWrapper
- {
- 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 maxThreads)
- {
- if (maxThreads < 2)
- throw new ArgumentOutOfRangeException("maxThreads", "maxThreads must be greater than 2");
- if (m_ThreadPool != null)
- throw new InvalidOperationException("SmartThreadPool is already initialized");
- m_ThreadPool = new SmartThreadPool(2000, maxThreads, 2);
- }
- 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)
- {
- switch (FireAndForgetMethod)
- {
- case FireAndForgetMethod.UnsafeQueueUserWorkItem:
- ThreadPool.UnsafeQueueUserWorkItem(callback, obj);
- break;
- case FireAndForgetMethod.QueueUserWorkItem:
- ThreadPool.QueueUserWorkItem(callback, obj);
- break;
- case FireAndForgetMethod.BeginInvoke:
- FireAndForgetWrapper wrapper = Singleton.GetInstance<FireAndForgetWrapper>();
- wrapper.FireAndForget(callback, obj);
- break;
- case FireAndForgetMethod.SmartThreadPool:
- if (m_ThreadPool == null)
- m_ThreadPool = new SmartThreadPool(2000, 15, 2);
- m_ThreadPool.QueueWorkItem(SmartThreadPoolCallback, new object[] { callback, obj });
- break;
- case FireAndForgetMethod.Thread:
- Thread thread = new Thread(delegate(object o) { callback(o); });
- thread.Start(obj);
- break;
- default:
- throw new NotImplementedException();
- }
- }
- private static object SmartThreadPoolCallback(object o)
- {
- object[] array = (object[])o;
- WaitCallback callback = (WaitCallback)array[0];
- object obj = array[1];
- callback(obj);
- return null;
- }
- #endregion FireAndForget Threading Pattern
- }
- }
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