From ea6e4a95ce5e0fc8c5e3d049b43b9cc0ada65491 Mon Sep 17 00:00:00 2001
From: idb <idb>
Date: Thu, 29 Jan 2009 19:47:55 +0000
Subject: [PATCH] Complete the implementation of llSHA1String.

---
 OpenSim/Framework/Util.cs                             | 11 +++++++++++
 .../ScriptEngine/Shared/Api/Implementation/LSL_Api.cs |  3 ++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 7217ece05b..df7a5521ce 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -334,6 +334,17 @@ namespace OpenSim.Framework
             return sb.ToString();
         }
 
+        /// <summary>
+        /// Return an SHA1 hash of the given string
+        /// </summary>
+        /// <param name="src"></param>
+        /// <returns></returns>
+        public static string SHA1Hash(string src)
+        {
+            SHA1CryptoServiceProvider SHA1 = new SHA1CryptoServiceProvider();
+            return BitConverter.ToString(SHA1.ComputeHash(Encoding.Default.GetBytes(src))).Replace("-", String.Empty);
+        }
+
         public static int fast_distance2d(int x, int y)
         {
             x = Math.Abs(x);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 10a3133e5c..36b524abe1 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -5890,8 +5890,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public LSL_String llSHA1String(string src)
         {
             m_host.AddScriptLPS(1);
-            return ""; //ckrinke 1/27 This needs to return a proper hash.
+            return Util.SHA1Hash(src).ToLower();
         }
+
         private ObjectShapePacket.ObjectDataBlock SetPrimitiveBlockShapeParams(SceneObjectPart part, int holeshape, LSL_Vector cut, float hollow, LSL_Vector twist)
         {
             ObjectShapePacket.ObjectDataBlock shapeBlock = new ObjectShapePacket.ObjectDataBlock();