Fix Headphones Download Auth, Add Special Parsing (#152)

* Add Secondary Backup Parsing Method if Regex Fails

* Add BasicAuth info to release for nzb download handling

src/NzbDrone.Core/Indexers/Headphones/Headphones.cs

@@ -32,7 +32,10 @@ namespace NzbDrone.Core.Indexers.Headphones
 
         public override IParseIndexerResponse GetParser()
         {
-            return new NewznabRssParser();
+            return new HeadphonesRssParser
+            {
+                Settings = Settings
+            };
         }
 
         public Headphones(IHeadphonesCapabilitiesProvider capabilitiesProvider, IHttpClient httpClient, IIndexerStatusService indexerStatusService, IConfigService configService, IParsingService parsingService, Logger logger)

src/NzbDrone.Core/Indexers/Headphones/HeadphonesRssParser.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Text;
+using NzbDrone.Core.Indexers.Newznab;
+
+namespace NzbDrone.Core.Indexers.Headphones
+{
+    public class HeadphonesRssParser : NewznabRssParser
+    {
+        public const string ns = "{http://www.newznab.com/DTD/2010/feeds/attributes/}";
+        public HeadphonesSettings Settings { get; set; }
+
+        public HeadphonesRssParser()
+        {
+            PreferredEnclosureMimeTypes = UsenetEnclosureMimeTypes;
+            UseEnclosureUrl = true;
+        }
+
+        protected override string GetBasicAuth()
+        {
+            return Convert.ToBase64String(Encoding.GetEncoding("ISO-8859-1").GetBytes($"{Settings.Username}:{Settings.Password}")); ;
+        }
+    }
+}

src/NzbDrone.Core/Indexers/RssParser.cs

@@ -156,6 +156,7 @@ namespace NzbDrone.Core.Indexers
             releaseInfo.Title = GetTitle(item);
             releaseInfo.PublishDate = GetPublishDate(item);
             releaseInfo.DownloadUrl = GetDownloadUrl(item);
+            releaseInfo.BasicAuthString = GetBasicAuth();
             releaseInfo.InfoUrl = GetInfoUrl(item);
             releaseInfo.CommentUrl = GetCommentUrl(item);
 
@@ -198,6 +199,11 @@ namespace NzbDrone.Core.Indexers
             return XElementExtensions.ParseDate(dateString);
         }
 
+        protected virtual string GetBasicAuth()
+        {
+            return null;
+        }
+
         protected virtual string GetDownloadUrl(XElement item)
         {
             if (UseEnclosureUrl)