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https://gitlab.winehq.org/wine/wine-gecko.git
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535 lines
16 KiB
JavaScript
535 lines
16 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["IdentityManager"];
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Promise.jsm");
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Cu.import("resource://services-sync/constants.js");
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Cu.import("resource://gre/modules/Log.jsm");
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Cu.import("resource://services-sync/util.js");
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// Lazy import to prevent unnecessary load on startup.
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for (let symbol of ["BulkKeyBundle", "SyncKeyBundle"]) {
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XPCOMUtils.defineLazyModuleGetter(this, symbol,
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"resource://services-sync/keys.js",
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symbol);
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}
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/**
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* Manages "legacy" identity and authentication for Sync.
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* See browserid_identity for the Firefox Accounts based identity manager.
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*
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* The following entities are managed:
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*
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* account - The main Sync/services account. This is typically an email
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* address.
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* username - A normalized version of your account. This is what's
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* transmitted to the server.
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* basic password - UTF-8 password used for authenticating when using HTTP
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* basic authentication.
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* sync key - The main encryption key used by Sync.
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* sync key bundle - A representation of your sync key.
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*
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* When changes are made to entities that are stored in the password manager
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* (basic password, sync key), those changes are merely staged. To commit them
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* to the password manager, you'll need to call persistCredentials().
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*
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* This type also manages authenticating Sync's network requests. Sync's
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* network code calls into getRESTRequestAuthenticator and
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* getResourceAuthenticator (depending on the network layer being used). Each
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* returns a function which can be used to add authentication information to an
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* outgoing request.
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*
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* In theory, this type supports arbitrary identity and authentication
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* mechanisms. You can add support for them by monkeypatching the global
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* instance of this type. Specifically, you'll need to redefine the
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* aforementioned network code functions to do whatever your authentication
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* mechanism needs them to do. In addition, you may wish to install custom
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* functions to support your API. Although, that is certainly not required.
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* If you do monkeypatch, please be advised that Sync expects the core
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* attributes to have values. You will need to carry at least account and
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* username forward. If you do not wish to support one of the built-in
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* authentication mechanisms, you'll probably want to redefine currentAuthState
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* and any other function that involves the built-in functionality.
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*/
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this.IdentityManager = function IdentityManager() {
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this._log = Log.repository.getLogger("Sync.Identity");
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this._log.Level = Log.Level[Svc.Prefs.get("log.logger.identity")];
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this._basicPassword = null;
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this._basicPasswordAllowLookup = true;
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this._basicPasswordUpdated = false;
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this._syncKey = null;
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this._syncKeyAllowLookup = true;
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this._syncKeySet = false;
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this._syncKeyBundle = null;
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}
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IdentityManager.prototype = {
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_log: null,
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_basicPassword: null,
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_basicPasswordAllowLookup: true,
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_basicPasswordUpdated: false,
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_syncKey: null,
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_syncKeyAllowLookup: true,
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_syncKeySet: false,
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_syncKeyBundle: null,
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/**
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* Initialize the identity provider. Returns a promise that is resolved
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* when initialization is complete and the provider can be queried for
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* its state
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*/
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initialize: function() {
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// nothing to do for this identity provider
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return Promise.resolve();
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},
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/**
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* Indicates if the identity manager is still initializing
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*/
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get readyToAuthenticate() {
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// We initialize in a fully sync manner, so we are always finished.
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return true;
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},
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get account() {
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return Svc.Prefs.get("account", this.username);
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},
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/**
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* Sets the active account name.
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*
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* This should almost always be called in favor of setting username, as
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* username is derived from account.
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*
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* Changing the account name has the side-effect of wiping out stored
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* credentials. Keep in mind that persistCredentials() will need to be called
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* to flush the changes to disk.
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*
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* Set this value to null to clear out identity information.
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*/
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set account(value) {
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if (value) {
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value = value.toLowerCase();
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Svc.Prefs.set("account", value);
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} else {
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Svc.Prefs.reset("account");
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}
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this.username = this.usernameFromAccount(value);
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},
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get username() {
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return Svc.Prefs.get("username", null);
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},
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/**
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* Set the username value.
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*
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* Changing the username has the side-effect of wiping credentials.
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*/
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set username(value) {
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if (value) {
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value = value.toLowerCase();
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if (value == this.username) {
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return;
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}
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Svc.Prefs.set("username", value);
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} else {
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Svc.Prefs.reset("username");
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}
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// If we change the username, we interpret this as a major change event
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// and wipe out the credentials.
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this._log.info("Username changed. Removing stored credentials.");
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this.resetCredentials();
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},
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/**
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* Resets/Drops all credentials we hold for the current user.
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*/
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resetCredentials: function() {
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this.basicPassword = null;
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this.resetSyncKey();
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},
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/**
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* Resets/Drops the sync key we hold for the current user.
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*/
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resetSyncKey: function() {
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this.syncKey = null;
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// syncKeyBundle cleared as a result of setting syncKey.
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},
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/**
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* Obtains the HTTP Basic auth password.
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*
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* Returns a string if set or null if it is not set.
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*/
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get basicPassword() {
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if (this._basicPasswordAllowLookup) {
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// We need a username to find the credentials.
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let username = this.username;
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if (!username) {
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return null;
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}
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for each (let login in this._getLogins(PWDMGR_PASSWORD_REALM)) {
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if (login.username.toLowerCase() == username) {
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// It should already be UTF-8 encoded, but we don't take any chances.
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this._basicPassword = Utils.encodeUTF8(login.password);
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}
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}
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this._basicPasswordAllowLookup = false;
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}
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return this._basicPassword;
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},
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/**
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* Set the HTTP basic password to use.
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*
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* Changes will not persist unless persistSyncCredentials() is called.
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*/
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set basicPassword(value) {
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// Wiping out value.
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if (!value) {
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this._log.info("Basic password has no value. Removing.");
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this._basicPassword = null;
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this._basicPasswordUpdated = true;
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this._basicPasswordAllowLookup = false;
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return;
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}
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let username = this.username;
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if (!username) {
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throw new Error("basicPassword cannot be set before username.");
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}
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this._log.info("Basic password being updated.");
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this._basicPassword = Utils.encodeUTF8(value);
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this._basicPasswordUpdated = true;
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},
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/**
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* Obtain the Sync Key.
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*
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* This returns a 26 character "friendly" Base32 encoded string on success or
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* null if no Sync Key could be found.
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*
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* If the Sync Key hasn't been set in this session, this will look in the
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* password manager for the sync key.
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*/
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get syncKey() {
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if (this._syncKeyAllowLookup) {
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let username = this.username;
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if (!username) {
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return null;
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}
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for each (let login in this._getLogins(PWDMGR_PASSPHRASE_REALM)) {
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if (login.username.toLowerCase() == username) {
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this._syncKey = login.password;
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}
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}
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this._syncKeyAllowLookup = false;
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}
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return this._syncKey;
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},
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/**
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* Set the active Sync Key.
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*
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* If being set to null, the Sync Key and its derived SyncKeyBundle are
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* removed. However, the Sync Key won't be deleted from the password manager
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* until persistSyncCredentials() is called.
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*
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* If a value is provided, it should be a 26 or 32 character "friendly"
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* Base32 string for which Utils.isPassphrase() returns true.
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*
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* A side-effect of setting the Sync Key is that a SyncKeyBundle is
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* generated. For historical reasons, this will silently error out if the
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* value is not a proper Sync Key (!Utils.isPassphrase()). This should be
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* fixed in the future (once service.js is more sane) to throw if the passed
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* value is not valid.
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*/
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set syncKey(value) {
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if (!value) {
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this._log.info("Sync Key has no value. Deleting.");
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this._syncKey = null;
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this._syncKeyBundle = null;
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this._syncKeyUpdated = true;
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return;
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}
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if (!this.username) {
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throw new Error("syncKey cannot be set before username.");
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}
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this._log.info("Sync Key being updated.");
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this._syncKey = value;
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// Clear any cached Sync Key Bundle and regenerate it.
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this._syncKeyBundle = null;
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let bundle = this.syncKeyBundle;
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this._syncKeyUpdated = true;
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},
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/**
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* Obtain the active SyncKeyBundle.
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*
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* This returns a SyncKeyBundle representing a key pair derived from the
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* Sync Key on success. If no Sync Key is present or if the Sync Key is not
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* valid, this returns null.
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*
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* The SyncKeyBundle should be treated as immutable.
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*/
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get syncKeyBundle() {
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// We can't obtain a bundle without a username set.
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if (!this.username) {
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this._log.warn("Attempted to obtain Sync Key Bundle with no username set!");
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return null;
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}
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if (!this.syncKey) {
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this._log.warn("Attempted to obtain Sync Key Bundle with no Sync Key " +
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"set!");
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return null;
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}
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if (!this._syncKeyBundle) {
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try {
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this._syncKeyBundle = new SyncKeyBundle(this.username, this.syncKey);
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} catch (ex) {
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this._log.warn(Utils.exceptionStr(ex));
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return null;
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}
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}
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return this._syncKeyBundle;
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},
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/**
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* The current state of the auth credentials.
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*
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* This essentially validates that enough credentials are available to use
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* Sync.
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*/
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get currentAuthState() {
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if (!this.username) {
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return LOGIN_FAILED_NO_USERNAME;
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}
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if (Utils.mpLocked()) {
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return STATUS_OK;
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}
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if (!this.basicPassword) {
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return LOGIN_FAILED_NO_PASSWORD;
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}
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if (!this.syncKey) {
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return LOGIN_FAILED_NO_PASSPHRASE;
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}
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// If we have a Sync Key but no bundle, bundle creation failed, which
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// implies a bad Sync Key.
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if (!this.syncKeyBundle) {
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return LOGIN_FAILED_INVALID_PASSPHRASE;
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}
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return STATUS_OK;
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},
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/**
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* Persist credentials to password store.
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*
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* When credentials are updated, they are changed in memory only. This will
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* need to be called to save them to the underlying password store.
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*
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* If the password store is locked (e.g. if the master password hasn't been
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* entered), this could throw an exception.
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*/
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persistCredentials: function persistCredentials(force) {
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if (this._basicPasswordUpdated || force) {
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if (this._basicPassword) {
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this._setLogin(PWDMGR_PASSWORD_REALM, this.username,
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this._basicPassword);
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} else {
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for each (let login in this._getLogins(PWDMGR_PASSWORD_REALM)) {
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Services.logins.removeLogin(login);
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}
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}
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this._basicPasswordUpdated = false;
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}
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if (this._syncKeyUpdated || force) {
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if (this._syncKey) {
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this._setLogin(PWDMGR_PASSPHRASE_REALM, this.username, this._syncKey);
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} else {
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for each (let login in this._getLogins(PWDMGR_PASSPHRASE_REALM)) {
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Services.logins.removeLogin(login);
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}
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}
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this._syncKeyUpdated = false;
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}
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},
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/**
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* Deletes the Sync Key from the system.
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*/
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deleteSyncKey: function deleteSyncKey() {
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this.syncKey = null;
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this.persistCredentials();
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},
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hasBasicCredentials: function hasBasicCredentials() {
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// Because JavaScript.
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return this.username && this.basicPassword && true;
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},
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/**
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* Obtains the array of basic logins from nsiPasswordManager.
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*/
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_getLogins: function _getLogins(realm) {
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return Services.logins.findLogins({}, PWDMGR_HOST, null, realm);
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},
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/**
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* Set a login in the password manager.
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*
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* This has the side-effect of deleting any other logins for the specified
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* realm.
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*/
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_setLogin: function _setLogin(realm, username, password) {
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let exists = false;
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for each (let login in this._getLogins(realm)) {
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if (login.username == username && login.password == password) {
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exists = true;
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} else {
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this._log.debug("Pruning old login for " + username + " from " + realm);
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Services.logins.removeLogin(login);
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}
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}
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if (exists) {
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return;
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}
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this._log.debug("Updating saved password for " + username + " in " +
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realm);
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let loginInfo = new Components.Constructor(
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"@mozilla.org/login-manager/loginInfo;1", Ci.nsILoginInfo, "init");
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let login = new loginInfo(PWDMGR_HOST, null, realm, username,
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password, "", "");
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Services.logins.addLogin(login);
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},
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/**
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* Deletes Sync credentials from the password manager.
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*/
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deleteSyncCredentials: function deleteSyncCredentials() {
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let logins = Services.logins.findLogins({}, PWDMGR_HOST, "", "");
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for each (let login in logins) {
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Services.logins.removeLogin(login);
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}
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// Wait until after store is updated in case it fails.
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this._basicPassword = null;
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this._basicPasswordAllowLookup = true;
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this._basicPasswordUpdated = false;
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this._syncKey = null;
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// this._syncKeyBundle is nullified as part of _syncKey setter.
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this._syncKeyAllowLookup = true;
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this._syncKeyUpdated = false;
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},
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usernameFromAccount: function usernameFromAccount(value) {
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// If we encounter characters not allowed by the API (as found for
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// instance in an email address), hash the value.
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if (value && value.match(/[^A-Z0-9._-]/i)) {
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return Utils.sha1Base32(value.toLowerCase()).toLowerCase();
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}
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return value ? value.toLowerCase() : value;
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},
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/**
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* Obtain a function to be used for adding auth to Resource HTTP requests.
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*/
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getResourceAuthenticator: function getResourceAuthenticator() {
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if (this.hasBasicCredentials()) {
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return this._onResourceRequestBasic.bind(this);
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}
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return null;
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},
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/**
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* Helper method to return an authenticator for basic Resource requests.
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*/
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getBasicResourceAuthenticator:
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function getBasicResourceAuthenticator(username, password) {
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return function basicAuthenticator(resource) {
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let value = "Basic " + btoa(username + ":" + password);
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return {headers: {authorization: value}};
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};
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},
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_onResourceRequestBasic: function _onResourceRequestBasic(resource) {
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let value = "Basic " + btoa(this.username + ":" + this.basicPassword);
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return {headers: {authorization: value}};
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},
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_onResourceRequestMAC: function _onResourceRequestMAC(resource, method) {
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// TODO Get identifier and key from somewhere.
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let identifier;
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let key;
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let result = Utils.computeHTTPMACSHA1(identifier, key, method, resource.uri);
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return {headers: {authorization: result.header}};
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},
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/**
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* Obtain a function to be used for adding auth to RESTRequest instances.
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*/
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getRESTRequestAuthenticator: function getRESTRequestAuthenticator() {
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if (this.hasBasicCredentials()) {
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return this.onRESTRequestBasic.bind(this);
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}
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return null;
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},
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onRESTRequestBasic: function onRESTRequestBasic(request) {
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let up = this.username + ":" + this.basicPassword;
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request.setHeader("authorization", "Basic " + btoa(up));
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},
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createClusterManager: function(service) {
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Cu.import("resource://services-sync/stages/cluster.js");
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return new ClusterManager(service);
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}
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};
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