Bug 710548 - Add offline-app and webapp-manage permissions to pre-installed apps r=cjones DONTBUILD since this is b2g/ only

b2g/app/b2g.js

@@ -66,6 +66,7 @@ pref("image.cache.size", 1048576); // bytes
 
 /* offline cache prefs */
 pref("browser.offline-apps.notify", false);
+pref("browser.cache.offline.enable", false);
 
 /* protocol warning prefs */
 pref("network.protocol-handler.warn-external.tel", false);

b2g/chrome/content/shell.js

@@ -72,11 +72,19 @@ function startupHttpd(baseDir, port) {
   server.start(port);
 }
 
-// XXX until we have a security model, just let the pre-installed
-// app used indexedDB.
-function allowIndexedDB(url) {
-  let uri = Services.io.newURI(url, null, null);
-  Services.perms.add(uri, 'indexedDB', Ci.nsIPermissionManager.ALLOW_ACTION);
+// FIXME Bug 707625
+// until we have a proper security model, add some rights to
+// the pre-installed web applications 
+function addPermissions(urls) {
+  let permissions = ['indexedDB', 'webapps-manage', 'offline-app'];
+  urls.forEach(function(url) {
+    let uri = Services.io.newURI(url, null, null);
+    let allow = Ci.nsIPermissionManager.ALLOW_ACTION;
+    
+    permissions.forEach(function(permission) {
+      Services.perms.add(uri, permission, allow);
+    });
+  });
 }
 
 
@@ -135,7 +143,7 @@ var shell = {
         let baseHost = 'http://localhost';
         homeURL = homeURL.replace(baseDir, baseHost + ':' + SERVER_PORT);
       }
-      allowIndexedDB(homeURL);
+      addPermissions([homeURL]);
     } catch (e) {
       let msg = 'Fatal error during startup: [' + e + '[' + homeURL + ']';
       return alert(msg);
@@ -200,6 +208,9 @@ var shell = {
         break;
       case 'MozApplicationManifest':
         try {
+          if (!Services.prefs.getBoolPref('browser.cache.offline.enable'))
+            return;
+
           let contentWindow = evt.originalTarget.defaultView;
           let documentElement = contentWindow.document.documentElement;
           if (!documentElement)
@@ -210,10 +221,18 @@ var shell = {
             return;
 
           let documentURI = contentWindow.document.documentURIObject;
-          let manifestURI = Services.io.newURI(manifest, null, documentURI);
+          if (!Services.perms.testPermission(documentURI, 'offline-app')) {
+            if (Services.prefs.getBoolPref('browser.offline-apps.notify')) {
+              // FIXME Bug 710729 - Add a UI for offline cache notifications
+              return;
+            }
+            return;
+          }
+
           Services.perms.add(documentURI, 'offline-app',
                              Ci.nsIPermissionManager.ALLOW_ACTION);
 
+          let manifestURI = Services.io.newURI(manifest, null, documentURI);
           let updateService = Cc['@mozilla.org/offlinecacheupdate-service;1']
                               .getService(Ci.nsIOfflineCacheUpdateService);
           updateService.scheduleUpdate(manifestURI, documentURI, window);