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Bug 1280775 - null check in removePermission to prevent crash: permission manager change

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janekptacijarabaci 2018-04-26 12:40:03 +02:00 • committed by Roy Tam
commit 4deec33633
1 changed files with 13 additions and 13 deletions
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26
application/palemoon/components/preferences/advanced.js
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@ -475,23 +475,23 @@ var gAdvancedPane = {
var pm = Components.classes["@mozilla.org/permissionmanager;1"]
.getService(Components.interfaces.nsIPermissionManager);
var perm = pm.getPermissionObject(principal, "offline-app");
// clear offline cache entries
var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
getService(Components.interfaces.nsIApplicationCacheService);
var ios = Components.classes["@mozilla.org/network/io-service;1"].
getService(Components.interfaces.nsIIOService);
var groups = cacheService.getGroups();
for (var i = 0; i < groups.length; i++) {
var uri = ios.newURI(groups[i], null, null);
if (perm.matchesURI(uri, true)) {
if (perm) {
// clear offline cache entries
try {
var cacheService = Components.classes["@mozilla.org/network/application-cache-service;1"].
getService(Components.interfaces.nsIApplicationCacheService);
var groups = cacheService.getGroups();
for (var i = 0; i < groups.length; i++) {
var uri = Services.io.newURI(groups[i], null, null);
if (perm.matchesURI(uri, true)) {
var cache = cacheService.getActiveCache(groups[i]);
cache.discard();
}
}
} catch (e) {}
pm.removePermission(perm);
}
pm.removePermission(perm);
list.removeChild(item);
gAdvancedPane.offlineAppSelected();
this.updateActualAppCacheSize();