New: Freeleech tokens support for Gazelle

src/NzbDrone.Core/Indexers/Gazelle/GazelleParser.cs

@@ -68,7 +68,7 @@ namespace NzbDrone.Core.Indexers.Gazelle
                             Container = torrent.Encoding,
                             Codec = torrent.Format,
                             Size = long.Parse(torrent.Size),
-                            DownloadUrl = GetDownloadUrl(id, _settings.AuthKey, _settings.PassKey),
+                            DownloadUrl = GetDownloadUrl(id),
                             InfoUrl = GetInfoUrl(result.GroupId, id),
                             Seeders = int.Parse(torrent.Seeders),
                             Peers = int.Parse(torrent.Leechers) + int.Parse(torrent.Seeders),
@@ -88,14 +88,20 @@ namespace NzbDrone.Core.Indexers.Gazelle
                     .ToArray();
         }
 
-        private string GetDownloadUrl(int torrentId, string authKey, string passKey)
+        private string GetDownloadUrl(int torrentId)
         {
             var url = new HttpUri(_settings.BaseUrl)
                 .CombinePath("/torrents.php")
                 .AddQueryParam("action", "download")
                 .AddQueryParam("id", torrentId)
-                .AddQueryParam("authkey", authKey)
-                .AddQueryParam("torrent_pass", passKey);
+                .AddQueryParam("authkey", _settings.AuthKey)
+                .AddQueryParam("torrent_pass", _settings.PassKey);
+
+            // Some trackers fail to download if usetoken=0 so we need to only add if we will use one
+            if (_settings.UseFreeleechToken)
+            {
+                url = url.AddQueryParam("usetoken", "1");
+            }
 
             return url.FullUri;
         }

src/NzbDrone.Core/Indexers/Gazelle/GazelleSettings.cs

@@ -37,6 +37,9 @@ namespace NzbDrone.Core.Indexers.Gazelle
         [FieldDefinition(2, Label = "Password", Type = FieldType.Password, HelpText = "Password", Privacy = PrivacyLevel.Password)]
         public string Password { get; set; }
 
+        [FieldDefinition(3, Type = FieldType.Checkbox, Label = "Use Freeleech Token", HelpText = "Will cause grabbing to fail if you do not have any tokens available", Advanced = true)]
+        public bool UseFreeleechToken { get; set; }
+
         [FieldDefinition(4, Type = FieldType.Number, Label = "Early Download Limit", Unit = "days", HelpText = "Time before release date Readarr will download from this indexer, empty is no limit", Advanced = true)]
         public int? EarlyReleaseLimit { get; set; }