46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
export var ForgetAboutSite = {
|
|
/**
|
|
* Clear data associated with a base domain. This includes partitioned storage
|
|
* associated with the domain.
|
|
*
|
|
* @param {string} aDomainOrHost - Domain or host to clear data for. Will be
|
|
* converted to base domain if needed.
|
|
* @returns {Promise} - Resolves once all matching data has been cleared.
|
|
* Throws if any of the internal cleaners fail.
|
|
*/
|
|
async removeDataFromBaseDomain(aDomainOrHost) {
|
|
if (!aDomainOrHost) {
|
|
throw new Error("aDomainOrHost can not be empty.");
|
|
}
|
|
|
|
let schemelessSite = Services.eTLD.getSchemelessSiteFromHost(aDomainOrHost);
|
|
let errorCount = await new Promise(resolve => {
|
|
Services.clearData.deleteDataFromSite(
|
|
schemelessSite,
|
|
{},
|
|
true /* user request */,
|
|
Ci.nsIClearDataService.CLEAR_FORGET_ABOUT_SITE,
|
|
errorCode => resolve(bitCounting(errorCode))
|
|
);
|
|
});
|
|
|
|
if (errorCount !== 0) {
|
|
throw new Error(
|
|
`There were a total of ${errorCount} errors during removal`
|
|
);
|
|
}
|
|
},
|
|
};
|
|
|
|
function bitCounting(value) {
|
|
// To know more about how to count bits set to 1 in a numeric value, see this
|
|
// interesting article:
|
|
// https://blogs.msdn.microsoft.com/jeuge/2005/06/08/bit-fiddling-3/
|
|
const count =
|
|
value - ((value >> 1) & 0o33333333333) - ((value >> 2) & 0o11111111111);
|
|
return ((count + (count >> 3)) & 0o30707070707) % 63;
|
|
}
|