Fix HttpClientTests, Use Servarr HttpBin Mirror

src/NzbDrone.Common.Test/Http/HttpClientFixture.cs

@@ -46,7 +46,7 @@ namespace NzbDrone.Common.Test.Http
 
             TestLogger.Info($"{candidates.Length} TestSites available.");
 
-            _httpBinSleep = _httpBinHosts.Length < 2 ? 100 : 10;
+            _httpBinSleep = _httpBinHosts.Count() < 2 ? 100 : 10;
         }
 
         private bool IsTestSiteAvailable(string site)
@@ -250,7 +250,7 @@ namespace NzbDrone.Common.Test.Http
         [Test]
         public void should_throw_on_too_many_redirects()
         {
-            var request = new HttpRequest($"https://{_httpBinHost}/redirect/4");
+            var request = new HttpRequest($"https://{_httpBinHost}/redirect/6");
             request.AllowAutoRedirect = true;
 
             Assert.Throws<WebException>(() => Subject.Get(request));

src/NzbDrone.Common/Http/HttpClient.cs

@@ -28,6 +28,8 @@ namespace NzbDrone.Common.Http
 
     public class HttpClient : IHttpClient
     {
+        private const int MaxRedirects = 5;
+
         private readonly Logger _logger;
         private readonly IRateLimitService _rateLimitService;
         private readonly ICached<CookieContainer> _cookieContainerCache;
@@ -70,7 +72,7 @@ namespace NzbDrone.Common.Http
 
                     _logger.Trace("Redirected to {0}", request.Url);
 
-                    if (autoRedirectChain.Count > 3)
+                    if (autoRedirectChain.Count > MaxRedirects)
                     {
                         throw new WebException($"Too many automatic redirections were attempted for {autoRedirectChain.Join(" -> ")}", WebExceptionStatus.ProtocolError);
                     }