Issue 4657 - Add Acceptable Ads API

lib/api.js

Index: lib/api.js
diff --git a/lib/api.js b/lib/api.js
index ca656b898f6680637d15e84a030a5c8b02986738..d558c5ff74ab2b35bad812b4b8bd0060257529e9 100644
--- a/lib/api.js
+++ b/lib/api.js
@@ -137,6 +137,37 @@ var API = (function()
       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);
@@ -181,7 +212,7 @@ var API = (function()
 
     getHostFromUrl: function(url)
     {
-      return extractHostFromURL(url);      
+      return extractHostFromURL(url);
     },
 
     compareVersions: function(v1, v2)