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/* 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/. */
const PERM_NAME = "ipp-vpn";
/**
* Manages site exceptions for IP Protection.
* It communicates with Services.perms to update the ipp-vpn permission type.
* Site exclusions are marked as permissions with DENY capabilities.
*
* While permissions related UI (eg. panels and dialogs) already handle changes to ipp-vpn,
* the intention of this class is to abstract methods for updating ipp-vpn as needed
* from other non-permissions related UI.
*/
class ExceptionsManager {
#inited = false;
init() {
if (this.#inited) {
return;
}
this.#inited = true;
}
uninit() {
if (!this.#inited) {
return;
}
this.#inited = false;
}
/**
* Adds a principal to ipp-vpn with capability DENY_ACTION
* for site exclusions.
*
* @param {nsIPrincipal} principal
* The principal that we want to add as a site exception.
*/
addExclusion(principal) {
Services.perms.addFromPrincipal(
principal,
PERM_NAME,
Ci.nsIPermissionManager.DENY_ACTION
);
}
/**
* Removes an existing principal from ipp-vpn.
*
* @param {nsIPrincipal} principal
* The principal that we want to remove as a site exception.
*/
removeExclusion(principal) {
Services.perms.removeFromPrincipal(principal, PERM_NAME);
}
/**
* Returns true if the principal already exists in ipp-vpn
* and is registered as a permission with a DENY_ACTION
* capability (site exclusions).
* Else returns false if no such principal exists.
*
* @param {nsIPrincipal} principal
* The principal that we want to check is saved in ipp-vpn
* as a site exclusion.
* @returns {boolean}
* True if the principal exists as a site exclusion.
*/
hasExclusion(principal) {
let permission = this.getExceptionPermissionObject(principal);
return permission?.capability === Ci.nsIPermissionManager.DENY_ACTION;
}
/**
* Get the permission object for a site exception if it exists in ipp-vpn.
*
* @param {nsIPrincipal} principal
* The principal that we want to check is saved in ipp-vpn.
*
* @returns {nsIPermission}
* The permission object for a site exception, or null if unavailable.
*/
getExceptionPermissionObject(principal) {
let permissionObject = Services.perms.getPermissionObject(
principal,
PERM_NAME,
true /* exactHost */
);
return permissionObject;
}
}
const IPPExceptionsManager = new ExceptionsManager();
export { IPPExceptionsManager };
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