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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/. */
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
LoginHelper: "resource://gre/modules/LoginHelper.sys.mjs",
RemoteSettings: "resource://services-settings/remote-settings.sys.mjs",
});
XPCOMUtils.defineLazyGetter(lazy, "log", () => {
let logger = lazy.LoginHelper.createLogger("LoginRelatedRealms");
return logger;
});
export class LoginRelatedRealmsParent extends JSWindowActorParent {
/**
* @type RemoteSettingsClient
*
* @memberof LoginRelatedRealmsParent
*/
_sharedCredentialsClient = null;
/**
* @type string[][]
*
* @memberof LoginRelatedRealmsParent
*/
_relatedDomainsList = [[]];
/**
* Handles the Remote Settings sync event
*
* @param {Object} aEvent
* @param {Array} aEvent.current Records that are currently in the collection after the sync event
* @param {Array} aEvent.created Records that were created
* @param {Array} aEvent.updated Records that were updated
* @param {Array} aEvent.deleted Records that were deleted
* @memberof LoginRelatedRealmsParent
*/
onRemoteSettingsSync(aEvent) {
let {
data: { current },
} = aEvent;
this._relatedDomainsList = current;
}
async getSharedCredentialsCollection() {
if (!this._sharedCredentialsClient) {
this._sharedCredentialsClient = lazy.RemoteSettings(
lazy.LoginHelper.relatedRealmsCollection
);
this._sharedCredentialsClient.on("sync", event =>
this.onRemoteSettingsSync(event)
);
this._relatedDomainsList = await this._sharedCredentialsClient.get();
}
return this._relatedDomainsList;
}
/**
* Determine if there are any related realms of this `formOrigin` using the related realms collection
* @param {string} formOrigin A form origin
* @return {string[]} filteredRealms An array of domains related to the `formOrigin`
* @async
* @memberof LoginRelatedRealmsParent
*/
async findRelatedRealms(formOrigin) {
try {
let formOriginURI = Services.io.newURI(formOrigin);
let originDomain = formOriginURI.host;
let [{ relatedRealms } = {}] =
await this.getSharedCredentialsCollection();
if (!relatedRealms) {
return [];
}
let filterOriginIndex;
let shouldInclude = false;
let filteredRealms = relatedRealms.filter(_realms => {
for (let relatedOrigin of _realms) {
// We can't have an origin that matches multiple entries in our related realms collection
// so we exit the loop early
if (shouldInclude) {
return false;
}
if (Services.eTLD.hasRootDomain(originDomain, relatedOrigin)) {
shouldInclude = true;
break;
}
}
return shouldInclude;
});
// * Filtered realms is a nested array due to its structure in Remote Settings
filteredRealms = filteredRealms.flat();
filterOriginIndex = filteredRealms.indexOf(originDomain);
// Removing the current formOrigin match if it exists in the related realms
// so that we don't return duplicates when we search for logins
if (filterOriginIndex !== -1) {
filteredRealms.splice(filterOriginIndex, 1);
}
return filteredRealms;
} catch (e) {
lazy.log.error(e);
return [];
}
}
}
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