Issue 4657 - Add Acceptable Ads API

lib/api.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 119 matching lines @@
 
         // These aren't normally properties of a Subscription object
         subscription.author = subscriptions[i].author;
         subscription.prefixes = subscriptions[i].prefixes;
         subscription.specialization = subscriptions[i].specialization;
         result.push(subscription);
       }
       return result;
     },
 
+    isAASubscription: function(subscription)
+    {
+      return subscription.url == Prefs.subscriptions_exceptionsurl;
+    },
+
+    setAASubscriptionEnabled: function(enabled)
+    {
+      var aaSubscription = FilterStorage.subscriptions.find(API.isAASubscription);
+      if (!enabled)
+      {
+        if (aaSubscription && !aaSubscription.disabled)
+          aaSubscription.disabled = true;
+        return;
+      }
+      if (!aaSubscription)
+      {
+        aaSubscription = Subscription.fromURL(Prefs.subscriptions_exceptionsurl);
+        FilterStorage.addSubscription(aaSubscription);
+      }
+      if (aaSubscription.disabled)
+        aaSubscription.disabled = false;
+      if (!aaSubscription.lastDownload)
+        Synchronizer.execute(aaSubscription);
+    },
+
+    isAASubscriptionEnabled: function()
+    {
+      var aaSubscription = FilterStorage.subscriptions.find(API.isAASubscription);
+      return aaSubscription && !aaSubscription.disabled;
+    },
+
     showNextNotification: function(url)
     {
       Notification.showNext(url);
     },
 
     getNotificationTexts: function(notification)
     {
       return Notification.getLocalizedTexts(notification);
     },
 
@@ skipping 24 matching lines @@
       Prefs[pref] = value;
     },
 
     forceUpdateCheck: function(eventName)
     {
       checkForUpdates(eventName ? _triggerEvent.bind(null, eventName) : null);
     },
 
     getHostFromUrl: function(url)
     {
-      return extractHostFromURL(url);      
+      return extractHostFromURL(url);
     },
 
     compareVersions: function(v1, v2)
     {
       return Services.vc.compare(v1, v2);
     }
   };
 })();