add imdbid detection from media file

MediaBrowser.Server.Implementations/Library/PathExtensions.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Text.RegularExpressions;
 
 namespace MediaBrowser.Server.Implementations.Library
 {
@@ -31,6 +32,14 @@ namespace MediaBrowser.Server.Implementations.Library
                 int end = str.IndexOf(']', start);
                 return str.Substring(start, end - start);
             }
+            // for imdbid we also accept pattern matching
+            if (attrib == "imdbid")
+            {
+              Regex imdbPattern = new Regex("tt\\d{7}");
+              var m = imdbPattern.Match(str);
+              return m.Success ? m.Value : null;            
+            }
+            
             return null;
         }
     }

MediaBrowser.Server.Implementations/Library/Resolvers/Movies/MovieResolver.cs

@@ -248,24 +248,34 @@ namespace MediaBrowser.Server.Implementations.Library.Resolvers.Movies
         {
             base.SetInitialItemValues(item, args);
 
-            SetProviderIdFromPath(item);
+            SetProviderIdsFromPath(item);
         }
 
         /// <summary>
         /// Sets the provider id from path.
         /// </summary>
         /// <param name="item">The item.</param>
-        private void SetProviderIdFromPath(Video item)
+        private void SetProviderIdsFromPath(Video item)
         {
             //we need to only look at the name of this actual item (not parents)
             var justName = item.IsInMixedFolder ? Path.GetFileName(item.Path) : Path.GetFileName(item.ContainingFolderPath);
 
-            var id = justName.GetAttributeValue("tmdbid");
+            // check for tmdb id
+            var tmdbid = justName.GetAttributeValue("tmdbid");
 
-            if (!string.IsNullOrEmpty(id))
+            if (!string.IsNullOrEmpty(tmdbid))
             {
-                item.SetProviderId(MetadataProviders.Tmdb, id);
+                item.SetProviderId(MetadataProviders.Tmdb, tmdbid);
             }
+
+            // check for imdb id - we use full media path, as we can assume, that this will match in any use case (wither id in parent dir or in file name)
+            var imdbid = item.Path.GetAttributeValue("imdbid");
+
+            if (!string.IsNullOrEmpty(imdbid))
+            {
+              item.SetProviderId(MetadataProviders.Imdb, imdbid);
+            }
+
         }
 
         /// <summary>