Skip restricted songs from playback

src/controller/mainController.py

@@ -231,6 +231,11 @@ class Controller(object):
 		call_threaded(utils.download_file, url, filename, self.window)
 
 	def play_audio(self, audio_object):
+		# Restricted audios does not include an URL paramether.
+		# Restriction can be due to licensed content to unauthorized countries.
+		if "url" in audio_object and audio_object["url"] =="":
+			self.notify(message=_(u"This file could not be played because it is not allowed in your country"))
+			return
 		call_threaded(player.player.play, audio_object)
 
 	def play_audios(self, audios):

src/controller/player.py

@@ -91,7 +91,8 @@ class audioPlayer(object):
 
 	def play_all(self, list_of_urls, shuffle=False):
 		self.stop()
-		self.queue = list_of_urls
+		# Skip all country restricted tracks as they are not playable here.
+		self.queue = [i for i in list_of_urls if i["url"] != ""]
 		if shuffle:
 			random.shuffle(self.queue)
 		self.play(self.queue[0])