Fixed: (Cardigann) Sites that use POST search not sending form params

Fixes #367

src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequest.cs

@@ -8,7 +8,13 @@ namespace NzbDrone.Core.Indexers.Cardigann
         public Dictionary<string, object> Variables { get; private set; }
 
         public CardigannRequest(string url, HttpAccept httpAccept, Dictionary<string, object> variables)
-        : base(url, httpAccept)
+            : base(url, httpAccept)
+        {
+            Variables = variables;
+        }
+
+        public CardigannRequest(HttpRequest httpRequest, Dictionary<string, object> variables)
+            : base(httpRequest)
         {
             Variables = variables;
         }

src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannRequestGenerator.cs

@@ -933,7 +933,20 @@ namespace NzbDrone.Core.Indexers.Cardigann
 
                 _logger.Info($"Adding request: {searchUrl}");
 
-                var request = new CardigannRequest(searchUrl, HttpAccept.Html, variables);
+                var requestbuilder = new HttpRequestBuilder(searchUrl);
+
+                requestbuilder.Method = method;
+
+                // Add FormData for searchs that POST
+                if (method == HttpMethod.POST)
+                {
+                    foreach (var param in queryCollection)
+                    {
+                        requestbuilder.AddFormParameter(param.Key, param.Value);
+                    }
+                }
+
+                var request = new CardigannRequest(requestbuilder.Build(), variables);
 
                 // send HTTP request
                 if (search.Headers != null)
@@ -944,8 +957,6 @@ namespace NzbDrone.Core.Indexers.Cardigann
                     }
                 }
 
-                request.HttpRequest.Method = method;
-
                 yield return request;
             }
         }