Add LastError to indexer API (#802)

src/Jackett/Controllers/AdminController.cs

@@ -233,6 +233,7 @@ namespace Jackett.Controllers
                     item["configured"] = indexer.IsConfigured;
                     item["site_link"] = indexer.SiteLink;
                     item["language"] = indexer.Language;
+                    item["last_error"] = indexer.LastError;
                     item["potatoenabled"] = indexer.TorznabCaps.Categories.Select(c => c.ID).Any(i => PotatoController.MOVIE_CATS.Contains(i));
 
                     var caps = new JObject();
@@ -257,19 +258,24 @@ namespace Jackett.Controllers
         public async Task<IHttpActionResult> Test()
         {
             JToken jsonReply = new JObject();
+            IIndexer indexer = null;
             try
             {
                 var postData = await ReadPostDataJson();
                 string indexerString = (string)postData["indexer"];
+                indexer = indexerService.GetIndexer(indexerString);
                 await indexerService.TestIndexer(indexerString);
-                jsonReply["name"] = indexerService.GetIndexer(indexerString).DisplayName;
+                jsonReply["name"] = indexer.DisplayName;
                 jsonReply["result"] = "success";
+                indexer.LastError = null;
             }
             catch (Exception ex)
             {
                 logger.Error(ex, "Exception in test_indexer");
                 jsonReply["result"] = "error";
                 jsonReply["error"] = ex.Message;
+                if (indexer != null)
+                    indexer.LastError = ex.Message;
             }
             return Json(jsonReply);
         }

src/Jackett/Indexers/BaseIndexer.cs

@@ -39,7 +39,17 @@ namespace Jackett.Indexers
             set { configData.CookieHeader.Value = value; }
         }
 
-
+        public string LastError
+        {
+            get { return configData.LastError.Value; }
+            set
+            {
+                bool SaveNeeded = configData.LastError.Value != value && IsConfigured;
+                configData.LastError.Value = value;
+                if (SaveNeeded)
+                    SaveConfig();
+            }
+        }
 
         protected ConfigurationData configData;
 

src/Jackett/Indexers/IIndexer.cs

@@ -17,6 +17,7 @@ namespace Jackett.Indexers
         string DisplayName { get; }
         string DisplayDescription { get; }
         string Language { get; }
+        string LastError { get; set; }
         string ID { get; }
 
         TorznabCapabilities TorznabCaps { get; }

src/Jackett/Models/IndexerConfig/ConfigurationData.cs

@@ -26,6 +26,7 @@ namespace Jackett.Models.IndexerConfig
         }
 
         public HiddenItem CookieHeader { get; private set; } = new HiddenItem { Name = "CookieHeader" };
+        public HiddenItem LastError { get; private set; } = new HiddenItem { Name = "LastError" };
 
         public ConfigurationData()
         {