mirror of
https://github.com/classilla/tenfourfox.git
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373 lines
12 KiB
JavaScript
373 lines
12 KiB
JavaScript
/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* 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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const Cu = Components.utils;
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const Ci = Components.interfaces;
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const Cc = Components.classes;
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const Cr = Components.results;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/identity/LogUtils.jsm");
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Cu.import("resource://gre/modules/identity/IdentityStore.jsm");
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this.EXPORTED_SYMBOLS = ["RelyingParty"];
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XPCOMUtils.defineLazyModuleGetter(this, "objectCopy",
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"resource://gre/modules/identity/IdentityUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this,
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"jwcrypto",
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"resource://gre/modules/identity/jwcrypto.jsm");
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function log(...aMessageArgs) {
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Logger.log.apply(Logger, ["RP"].concat(aMessageArgs));
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}
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function reportError(...aMessageArgs) {
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Logger.reportError.apply(Logger, ["RP"].concat(aMessageArgs));
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}
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function IdentityRelyingParty() {
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// The store is a singleton shared among Identity, RelyingParty, and
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// IdentityProvider. The Identity module takes care of resetting
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// state in the _store on shutdown.
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this._store = IdentityStore;
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this.reset();
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}
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IdentityRelyingParty.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports, Ci.nsIObserver]),
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observe: function observe(aSubject, aTopic, aData) {
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switch (aTopic) {
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case "quit-application-granted":
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Services.obs.removeObserver(this, "quit-application-granted");
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this.shutdown();
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break;
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}
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},
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reset: function RP_reset() {
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// Forget all documents that call in. (These are sometimes
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// referred to as callers.)
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this._rpFlows = {};
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},
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shutdown: function RP_shutdown() {
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this.reset();
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Services.obs.removeObserver(this, "quit-application-granted");
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},
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/**
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* Register a listener for a given windowID as a result of a call to
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* navigator.id.watch().
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*
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* @param aCaller
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* (Object) an object that represents the caller document, and
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* is expected to have properties:
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* - id (unique, e.g. uuid)
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* - loggedInUser (string or null)
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* - origin (string)
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*
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* and a bunch of callbacks
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* - doReady()
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* - doLogin()
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* - doLogout()
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* - doError()
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* - doCancel()
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*
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*/
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watch: function watch(aRpCaller) {
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this._rpFlows[aRpCaller.id] = aRpCaller;
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let origin = aRpCaller.origin;
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let state = this._store.getLoginState(origin) || { isLoggedIn: false, email: null };
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log("watch: rpId:", aRpCaller.id,
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"origin:", origin,
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"loggedInUser:", aRpCaller.loggedInUser,
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"loggedIn:", state.isLoggedIn,
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"email:", state.email);
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// If the user is already logged in, then there are three cases
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// to deal with:
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//
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// 1. the email is valid and unchanged: 'ready'
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// 2. the email is null: 'login'; 'ready'
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// 3. the email has changed: 'login'; 'ready'
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if (state.isLoggedIn) {
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if (state.email && aRpCaller.loggedInUser === state.email) {
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this._notifyLoginStateChanged(aRpCaller.id, state.email);
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return aRpCaller.doReady();
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} else if (aRpCaller.loggedInUser === null) {
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// Generate assertion for existing login
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let options = {loggedInUser: state.email, origin: origin};
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return this._doLogin(aRpCaller, options);
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} else {
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// A loggedInUser different from state.email has been specified.
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// Change login identity.
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let options = {loggedInUser: state.email, origin: origin};
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return this._doLogin(aRpCaller, options);
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}
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// If the user is not logged in, there are two cases:
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//
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// 1. a logged in email was provided: 'ready'; 'logout'
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// 2. not logged in, no email given: 'ready';
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} else {
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if (aRpCaller.loggedInUser) {
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return this._doLogout(aRpCaller, {origin: origin});
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} else {
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return aRpCaller.doReady();
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}
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}
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},
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/**
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* A utility for watch() to set state and notify the dom
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* on login
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*
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* Note that this calls _getAssertion
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*/
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_doLogin: function _doLogin(aRpCaller, aOptions, aAssertion) {
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log("_doLogin: rpId:", aRpCaller.id, "origin:", aOptions.origin);
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let loginWithAssertion = function loginWithAssertion(assertion) {
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this._store.setLoginState(aOptions.origin, true, aOptions.loggedInUser);
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this._notifyLoginStateChanged(aRpCaller.id, aOptions.loggedInUser);
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aRpCaller.doLogin(assertion);
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aRpCaller.doReady();
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}.bind(this);
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if (aAssertion) {
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loginWithAssertion(aAssertion);
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} else {
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this._getAssertion(aOptions, function gotAssertion(err, assertion) {
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if (err) {
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reportError("_doLogin:", "Failed to get assertion on login attempt:", err);
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this._doLogout(aRpCaller);
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} else {
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loginWithAssertion(assertion);
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}
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}.bind(this));
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}
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},
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/**
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* A utility for watch() to set state and notify the dom
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* on logout.
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*/
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_doLogout: function _doLogout(aRpCaller, aOptions) {
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log("_doLogout: rpId:", aRpCaller.id, "origin:", aOptions.origin);
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let state = this._store.getLoginState(aOptions.origin) || {};
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state.isLoggedIn = false;
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this._notifyLoginStateChanged(aRpCaller.id, null);
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aRpCaller.doLogout();
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aRpCaller.doReady();
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},
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/**
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* For use with login or logout, emit 'identity-login-state-changed'
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*
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* The notification will send the rp caller id in the properties,
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* and the email of the user in the message.
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*
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* @param aRpCallerId
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* (integer) The id of the RP caller
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*
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* @param aIdentity
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* (string) The email of the user whose login state has changed
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*/
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_notifyLoginStateChanged: function _notifyLoginStateChanged(aRpCallerId, aIdentity) {
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log("_notifyLoginStateChanged: rpId:", aRpCallerId, "identity:", aIdentity);
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let options = {rpId: aRpCallerId};
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Services.obs.notifyObservers({wrappedJSObject: options},
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"identity-login-state-changed",
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aIdentity);
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},
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/**
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* Initiate a login with user interaction as a result of a call to
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* navigator.id.request().
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*
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* @param aRPId
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* (integer) the id of the doc object obtained in .watch()
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*
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* @param aOptions
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* (Object) options including privacyPolicy, termsOfService
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*/
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request: function request(aRPId, aOptions) {
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log("request: rpId:", aRPId);
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let rp = this._rpFlows[aRPId];
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// Notify UX to display identity picker.
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// Pass the doc id to UX so it can pass it back to us later.
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let options = {rpId: aRPId, origin: rp.origin};
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objectCopy(aOptions, options);
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// Append URLs after resolving
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let baseURI = Services.io.newURI(rp.origin, null, null);
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for (let optionName of ["privacyPolicy", "termsOfService"]) {
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if (aOptions[optionName]) {
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options[optionName] = baseURI.resolve(aOptions[optionName]);
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}
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}
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Services.obs.notifyObservers({wrappedJSObject: options}, "identity-request", null);
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},
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/**
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* Invoked when a user wishes to logout of a site (for instance, when clicking
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* on an in-content logout button).
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*
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* @param aRpCallerId
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* (integer) the id of the doc object obtained in .watch()
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*
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*/
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logout: function logout(aRpCallerId) {
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log("logout: RP caller id:", aRpCallerId);
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let rp = this._rpFlows[aRpCallerId];
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if (rp && rp.origin) {
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let origin = rp.origin;
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log("logout: origin:", origin);
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this._doLogout(rp, {origin: origin});
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} else {
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log("logout: no RP found with id:", aRpCallerId);
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}
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// We don't delete this._rpFlows[aRpCallerId], because
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// the user might log back in again.
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},
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getDefaultEmailForOrigin: function getDefaultEmailForOrigin(aOrigin) {
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let identities = this.getIdentitiesForSite(aOrigin);
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let result = identities.lastUsed || null;
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log("getDefaultEmailForOrigin:", aOrigin, "->", result);
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return result;
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},
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/**
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* Return the list of identities a user may want to use to login to aOrigin.
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*/
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getIdentitiesForSite: function getIdentitiesForSite(aOrigin) {
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let rv = { result: [] };
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for (let id in this._store.getIdentities()) {
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rv.result.push(id);
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}
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let loginState = this._store.getLoginState(aOrigin);
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if (loginState && loginState.email)
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rv.lastUsed = loginState.email;
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return rv;
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},
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/**
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* Obtain a BrowserID assertion with the specified characteristics.
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*
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* @param aCallback
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* (Function) Callback to be called with (err, assertion) where 'err'
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* can be an Error or NULL, and 'assertion' can be NULL or a valid
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* BrowserID assertion. If no callback is provided, an exception is
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* thrown.
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*
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* @param aOptions
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* (Object) An object that may contain the following properties:
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*
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* "audience" : The audience for which the assertion is to be
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* issued. If this property is not set an exception
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* will be thrown.
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*
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* Any properties not listed above will be ignored.
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*/
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_getAssertion: function _getAssertion(aOptions, aCallback) {
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let audience = aOptions.origin;
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let email = aOptions.loggedInUser || this.getDefaultEmailForOrigin(audience);
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log("_getAssertion: audience:", audience, "email:", email);
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if (!audience) {
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throw "audience required for _getAssertion";
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}
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// We might not have any identity info for this email
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if (!this._store.fetchIdentity(email)) {
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this._store.addIdentity(email, null, null);
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}
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let cert = this._store.fetchIdentity(email)['cert'];
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if (cert) {
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this._generateAssertion(audience, email, function generatedAssertion(err, assertion) {
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if (err) {
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log("ERROR: _getAssertion:", err);
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}
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log("_getAssertion: generated assertion:", assertion);
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return aCallback(err, assertion);
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});
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}
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},
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/**
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* Generate an assertion, including provisioning via IdP if necessary,
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* but no user interaction, so if provisioning fails, aCallback is invoked
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* with an error.
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*
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* @param aAudience
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* (string) web origin
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*
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* @param aIdentity
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* (string) the email we're logging in with
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*
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* @param aCallback
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* (function) callback to invoke on completion
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* with first-positional parameter the error.
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*/
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_generateAssertion: function _generateAssertion(aAudience, aIdentity, aCallback) {
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log("_generateAssertion: audience:", aAudience, "identity:", aIdentity);
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let id = this._store.fetchIdentity(aIdentity);
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if (! (id && id.cert)) {
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let errStr = "Cannot generate an assertion without a certificate";
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log("ERROR: _generateAssertion:", errStr);
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aCallback(errStr);
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return;
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}
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let kp = id.keyPair;
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if (!kp) {
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let errStr = "Cannot generate an assertion without a keypair";
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log("ERROR: _generateAssertion:", errStr);
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aCallback(errStr);
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return;
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}
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jwcrypto.generateAssertion(id.cert, kp, aAudience, aCallback);
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},
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/**
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* Clean up references to the provisioning flow for the specified RP.
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*/
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_cleanUpProvisionFlow: function RP_cleanUpProvisionFlow(aRPId, aProvId) {
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let rp = this._rpFlows[aRPId];
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if (rp) {
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delete rp['provId'];
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} else {
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log("Error: Couldn't delete provision flow ", aProvId, " for RP ", aRPId);
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}
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},
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};
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this.RelyingParty = new IdentityRelyingParty();
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