Fixed: Removing torcache url query params to avoid redirect.

fixes #799
Removing query param was cleaner coz it avoids spoofing the referrer.

src/NzbDrone.Core.Test/Http/TorCacheHttpRequestInterceptorFixture.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using NUnit.Framework;
+using NzbDrone.Common.Http;
+using NzbDrone.Core.Http;
+using NzbDrone.Test.Common;
+using FluentAssertions;
+
+namespace NzbDrone.Core.Test.Http
+{
+    [TestFixture]
+    public class TorCacheHttpRequestInterceptorFixture : TestBase<TorCacheHttpRequestInterceptor>
+    {
+        [Test]
+        public void should_remove_query_params_from_torcache_request()
+        {
+            var request = new HttpRequest("http://torcache.net/download/123.torrent?title=something");
+
+            var newRequest = Subject.PreRequest(request);
+
+            newRequest.Url.AbsoluteUri.Should().Be("http://torcache.net/download/123.torrent");
+        }
+
+        [TestCase("http://site.com/download?url=torcache.net&blaat=1")]
+        [TestCase("http://torcache.net.com/download?url=123")]
+        public void should_not_remove_query_params_from_other_requests(string url)
+        {
+            var request = new HttpRequest(url);
+
+            var newRequest = Subject.PreRequest(request);
+
+            newRequest.Url.AbsoluteUri.Should().Be(url);
+        }
+    }
+}