From c9a8ebc2e62b4f3e12854144dc7faba2f972b002 Mon Sep 17 00:00:00 2001
From: Keivan Beigi <me@keivan.io>
Date: Fri, 20 Jan 2017 20:15:49 -0800
Subject: [PATCH] Create anonymous hash to detect issue duplication

---
 src/NzbDrone.Common.Test/HashUtilFixture.cs   | 21 +++++++++++++++++++
 .../NzbDrone.Common.Test.csproj               |  1 +
 src/NzbDrone.Common/HashUtil.cs               |  8 ++++++-
 .../Sentry/MachineNameUserFactory.cs          |  3 +--
 4 files changed, 30 insertions(+), 3 deletions(-)
 create mode 100644 src/NzbDrone.Common.Test/HashUtilFixture.cs

diff --git a/src/NzbDrone.Common.Test/HashUtilFixture.cs b/src/NzbDrone.Common.Test/HashUtilFixture.cs
new file mode 100644
index 000000000..02869fa24
--- /dev/null
+++ b/src/NzbDrone.Common.Test/HashUtilFixture.cs
@@ -0,0 +1,21 @@
+using FluentAssertions;
+using NUnit.Framework;
+
+namespace NzbDrone.Common.Test
+{
+    [TestFixture]
+    public class HashUtilFixture
+    {
+        [Test]
+        public void should_create_anon_id()
+        {
+            HashUtil.AnonymousToken().Should().NotBeNullOrEmpty();
+        }
+
+        [Test]
+        public void should_create_the_same_id()
+        {
+            HashUtil.AnonymousToken().Should().Be(HashUtil.AnonymousToken());
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj b/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
index eac513244..bd34c1e63 100644
--- a/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
+++ b/src/NzbDrone.Common.Test/NzbDrone.Common.Test.csproj
@@ -84,6 +84,7 @@
     <Compile Include="ExtensionTests\IEnumerableExtensionTests\ExceptByFixture.cs" />
     <Compile Include="ExtensionTests\IEnumerableExtensionTests\IntersectByFixture.cs" />
     <Compile Include="ExtensionTests\Int64ExtensionFixture.cs" />
+    <Compile Include="HashUtilFixture.cs" />
     <Compile Include="Http\HttpClientFixture.cs" />
     <Compile Include="Http\HttpHeaderFixture.cs" />
     <Compile Include="Http\HttpRequestBuilderFixture.cs" />
diff --git a/src/NzbDrone.Common/HashUtil.cs b/src/NzbDrone.Common/HashUtil.cs
index 062e561c1..d826324f3 100644
--- a/src/NzbDrone.Common/HashUtil.cs
+++ b/src/NzbDrone.Common/HashUtil.cs
@@ -24,7 +24,13 @@ namespace NzbDrone.Common
                     }
                 }
             }
-            return string.Format("{0:x8}", mCrc);
+            return $"{mCrc:x8}";
+        }
+
+        public static string AnonymousToken()
+        {
+            var seed = $"{Environment.ProcessorCount}_{Environment.OSVersion.Platform}_{Environment.MachineName}_{Environment.UserName}";
+            return HashUtil.CalculateCrc(seed);
         }
     }
 }
\ No newline at end of file
diff --git a/src/NzbDrone.Common/Instrumentation/Sentry/MachineNameUserFactory.cs b/src/NzbDrone.Common/Instrumentation/Sentry/MachineNameUserFactory.cs
index b9c92c880..59e892542 100644
--- a/src/NzbDrone.Common/Instrumentation/Sentry/MachineNameUserFactory.cs
+++ b/src/NzbDrone.Common/Instrumentation/Sentry/MachineNameUserFactory.cs
@@ -1,4 +1,3 @@
-using System;
 using SharpRaven.Data;
 
 namespace NzbDrone.Common.Instrumentation.Sentry
@@ -7,7 +6,7 @@ namespace NzbDrone.Common.Instrumentation.Sentry
     {
         public SentryUser Create()
         {
-            return new SentryUser(Environment.MachineName);
+            return new SentryUser(HashUtil.AnonymousToken());
         }
     }
 }
\ No newline at end of file