Add framework to disable builtin recipes and disable Aftenposten, at the publishers request

resources/recipes/aftenposten.recipe

@@ -7,6 +7,9 @@ class Aftenposten(BasicNewsRecipe):
      language = 'no'
      oldest_article = 5
      max_articles_per_feed = 100
+     recipe_disabled = ('The recipe to download Aftenposten has been '
+             'temporarily disabled at the publisher\'s request, while '
+             'they finalize their digital strategy.')
      no_stylesheets = True
      encoding = 'ISO-8859-1'
 

resources/recipes/independent.recipe

@@ -3,7 +3,7 @@ from calibre.web.feeds.news import BasicNewsRecipe
 class Independent(BasicNewsRecipe):
     title          = u'The Independent'
     oldest_article = 1
-    language = 'en_UK'
+    language = 'en_GB'
     __author__ = 'Jimmy Patrick'
     max_articles_per_feed = 100
 

src/calibre/gui2/ui.py

@@ -1736,6 +1736,16 @@ class Main(MainWindow, Ui_MainWindow, DeviceGUI):
                 d.show()
                 self._modeless_dialogs.append(d)
                 return
+            if 'calibre.web.feeds.input.RecipeDisabled' in job.details:
+                msg = job.details
+                msg = msg[msg.find('calibre.web.feeds.input.RecipeDisabled:'):]
+                msg = msg.partition(':')[-1]
+                d = error_dialog(self, _('Recipe Disabled'),
+                    '<p>%s</p>'%msg)
+                d.setModal(False)
+                d.show()
+                self._modeless_dialogs.append(d)
+                return
         except:
             pass
         if job.killed:

src/calibre/web/feeds/input.py

@@ -11,6 +11,9 @@ import os
 from calibre.customize.conversion import InputFormatPlugin, OptionRecommendation
 from calibre.constants import numeric_version
 
+class RecipeDisabled(Exception):
+    pass
+
 class RecipeInput(InputFormatPlugin):
 
     name        = 'Recipe Input'
@@ -83,6 +86,9 @@ class RecipeInput(InputFormatPlugin):
                     recipe_or_file)
 
         ro = recipe(opts, log, self.report_progress)
+        disabled = getattr(ro, 'recipe_disabled', None)
+        if disabled is not None:
+            raise RecipeDisabled(disabled)
         ro.download()
         self.recipe_object = ro
         for key, val in recipe.conversion_options.items():

src/calibre/web/feeds/news.py

@@ -270,7 +270,11 @@ class BasicNewsRecipe(Recipe):
             .navbar {
                 font-family:monospace;
             }
-'''
+    '''
+
+    #: Set to a non empty string to disable this recipe
+    #: The string will be used as the disabled message
+    recipe_disabled = None
 
 
     # See the built-in profiles for examples of these settings.