1674 lines
64 KiB
JavaScript
1674 lines
64 KiB
JavaScript
import { _getProvider, getApp, _registerComponent, registerVersion } from '@firebase/app';
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import { Component } from '@firebase/component';
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import { Deferred, ErrorFactory, isIndexedDBAvailable, uuidv4, getGlobal, base64, issuedAtTime, calculateBackoffMillis, getModularInstance } from '@firebase/util';
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import { Logger } from '@firebase/logger';
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const APP_CHECK_STATES = new Map();
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const DEFAULT_STATE = {
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activated: false,
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tokenObservers: []
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};
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const DEBUG_STATE = {
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initialized: false,
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enabled: false
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};
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/**
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* Gets a reference to the state object.
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*/
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function getStateReference(app) {
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return APP_CHECK_STATES.get(app) || Object.assign({}, DEFAULT_STATE);
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}
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/**
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* Set once on initialization. The map should hold the same reference to the
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* same object until this entry is deleted.
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*/
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function setInitialState(app, state) {
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APP_CHECK_STATES.set(app, state);
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return APP_CHECK_STATES.get(app);
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}
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function getDebugState() {
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return DEBUG_STATE;
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}
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const BASE_ENDPOINT = 'https://content-firebaseappcheck.googleapis.com/v1';
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const EXCHANGE_RECAPTCHA_TOKEN_METHOD = 'exchangeRecaptchaV3Token';
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const EXCHANGE_RECAPTCHA_ENTERPRISE_TOKEN_METHOD = 'exchangeRecaptchaEnterpriseToken';
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const EXCHANGE_DEBUG_TOKEN_METHOD = 'exchangeDebugToken';
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const TOKEN_REFRESH_TIME = {
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/**
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* The offset time before token natural expiration to run the refresh.
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* This is currently 5 minutes.
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*/
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OFFSET_DURATION: 5 * 60 * 1000,
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/**
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* This is the first retrial wait after an error. This is currently
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* 30 seconds.
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*/
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RETRIAL_MIN_WAIT: 30 * 1000,
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/**
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* This is the maximum retrial wait, currently 16 minutes.
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*/
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RETRIAL_MAX_WAIT: 16 * 60 * 1000
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};
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/**
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* One day in millis, for certain error code backoffs.
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*/
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const ONE_DAY = 24 * 60 * 60 * 1000;
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* Port from auth proactiverefresh.js
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*
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*/
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// TODO: move it to @firebase/util?
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// TODO: allow to config whether refresh should happen in the background
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class Refresher {
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constructor(operation, retryPolicy, getWaitDuration, lowerBound, upperBound) {
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this.operation = operation;
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this.retryPolicy = retryPolicy;
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this.getWaitDuration = getWaitDuration;
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this.lowerBound = lowerBound;
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this.upperBound = upperBound;
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this.pending = null;
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this.nextErrorWaitInterval = lowerBound;
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if (lowerBound > upperBound) {
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throw new Error('Proactive refresh lower bound greater than upper bound!');
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}
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}
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start() {
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this.nextErrorWaitInterval = this.lowerBound;
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this.process(true).catch(() => {
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/* we don't care about the result */
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});
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}
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stop() {
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if (this.pending) {
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this.pending.reject('cancelled');
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this.pending = null;
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}
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}
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isRunning() {
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return !!this.pending;
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}
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async process(hasSucceeded) {
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this.stop();
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try {
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this.pending = new Deferred();
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this.pending.promise.catch(_e => {
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/* ignore */
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});
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await sleep(this.getNextRun(hasSucceeded));
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// Why do we resolve a promise, then immediate wait for it?
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// We do it to make the promise chain cancellable.
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// We can call stop() which rejects the promise before the following line execute, which makes
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// the code jump to the catch block.
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// TODO: unit test this
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this.pending.resolve();
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await this.pending.promise;
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this.pending = new Deferred();
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this.pending.promise.catch(_e => {
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/* ignore */
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});
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await this.operation();
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this.pending.resolve();
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await this.pending.promise;
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this.process(true).catch(() => {
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/* we don't care about the result */
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});
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}
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catch (error) {
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if (this.retryPolicy(error)) {
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this.process(false).catch(() => {
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/* we don't care about the result */
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});
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}
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else {
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this.stop();
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}
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}
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}
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getNextRun(hasSucceeded) {
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if (hasSucceeded) {
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// If last operation succeeded, reset next error wait interval and return
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// the default wait duration.
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this.nextErrorWaitInterval = this.lowerBound;
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// Return typical wait duration interval after a successful operation.
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return this.getWaitDuration();
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}
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else {
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// Get next error wait interval.
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const currentErrorWaitInterval = this.nextErrorWaitInterval;
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// Double interval for next consecutive error.
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this.nextErrorWaitInterval *= 2;
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// Make sure next wait interval does not exceed the maximum upper bound.
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if (this.nextErrorWaitInterval > this.upperBound) {
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this.nextErrorWaitInterval = this.upperBound;
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}
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return currentErrorWaitInterval;
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}
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}
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}
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function sleep(ms) {
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return new Promise(resolve => {
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setTimeout(resolve, ms);
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});
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}
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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const ERRORS = {
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["already-initialized" /* AppCheckError.ALREADY_INITIALIZED */]: 'You have already called initializeAppCheck() for FirebaseApp {$appName} with ' +
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'different options. To avoid this error, call initializeAppCheck() with the ' +
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'same options as when it was originally called. This will return the ' +
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'already initialized instance.',
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["use-before-activation" /* AppCheckError.USE_BEFORE_ACTIVATION */]: 'App Check is being used before initializeAppCheck() is called for FirebaseApp {$appName}. ' +
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'Call initializeAppCheck() before instantiating other Firebase services.',
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["fetch-network-error" /* AppCheckError.FETCH_NETWORK_ERROR */]: 'Fetch failed to connect to a network. Check Internet connection. ' +
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'Original error: {$originalErrorMessage}.',
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["fetch-parse-error" /* AppCheckError.FETCH_PARSE_ERROR */]: 'Fetch client could not parse response.' +
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' Original error: {$originalErrorMessage}.',
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["fetch-status-error" /* AppCheckError.FETCH_STATUS_ERROR */]: 'Fetch server returned an HTTP error status. HTTP status: {$httpStatus}.',
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["storage-open" /* AppCheckError.STORAGE_OPEN */]: 'Error thrown when opening storage. Original error: {$originalErrorMessage}.',
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["storage-get" /* AppCheckError.STORAGE_GET */]: 'Error thrown when reading from storage. Original error: {$originalErrorMessage}.',
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["storage-set" /* AppCheckError.STORAGE_WRITE */]: 'Error thrown when writing to storage. Original error: {$originalErrorMessage}.',
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["recaptcha-error" /* AppCheckError.RECAPTCHA_ERROR */]: 'ReCAPTCHA error.',
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["throttled" /* AppCheckError.THROTTLED */]: `Requests throttled due to {$httpStatus} error. Attempts allowed again after {$time}`
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};
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const ERROR_FACTORY = new ErrorFactory('appCheck', 'AppCheck', ERRORS);
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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function getRecaptcha(isEnterprise = false) {
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var _a;
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if (isEnterprise) {
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return (_a = self.grecaptcha) === null || _a === void 0 ? void 0 : _a.enterprise;
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}
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return self.grecaptcha;
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}
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function ensureActivated(app) {
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if (!getStateReference(app).activated) {
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throw ERROR_FACTORY.create("use-before-activation" /* AppCheckError.USE_BEFORE_ACTIVATION */, {
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appName: app.name
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});
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}
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}
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function getDurationString(durationInMillis) {
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const totalSeconds = Math.round(durationInMillis / 1000);
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const days = Math.floor(totalSeconds / (3600 * 24));
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const hours = Math.floor((totalSeconds - days * 3600 * 24) / 3600);
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const minutes = Math.floor((totalSeconds - days * 3600 * 24 - hours * 3600) / 60);
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const seconds = totalSeconds - days * 3600 * 24 - hours * 3600 - minutes * 60;
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let result = '';
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if (days) {
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result += pad(days) + 'd:';
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}
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if (hours) {
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result += pad(hours) + 'h:';
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}
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result += pad(minutes) + 'm:' + pad(seconds) + 's';
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return result;
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}
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function pad(value) {
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if (value === 0) {
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return '00';
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}
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return value >= 10 ? value.toString() : '0' + value;
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}
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/**
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* @license
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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async function exchangeToken({ url, body }, heartbeatServiceProvider) {
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const headers = {
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'Content-Type': 'application/json'
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};
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// If heartbeat service exists, add heartbeat header string to the header.
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const heartbeatService = heartbeatServiceProvider.getImmediate({
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optional: true
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});
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if (heartbeatService) {
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const heartbeatsHeader = await heartbeatService.getHeartbeatsHeader();
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if (heartbeatsHeader) {
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headers['X-Firebase-Client'] = heartbeatsHeader;
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}
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}
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const options = {
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method: 'POST',
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body: JSON.stringify(body),
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headers
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};
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let response;
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try {
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response = await fetch(url, options);
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}
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catch (originalError) {
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throw ERROR_FACTORY.create("fetch-network-error" /* AppCheckError.FETCH_NETWORK_ERROR */, {
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originalErrorMessage: originalError === null || originalError === void 0 ? void 0 : originalError.message
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});
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}
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if (response.status !== 200) {
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throw ERROR_FACTORY.create("fetch-status-error" /* AppCheckError.FETCH_STATUS_ERROR */, {
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httpStatus: response.status
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});
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}
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let responseBody;
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try {
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// JSON parsing throws SyntaxError if the response body isn't a JSON string.
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responseBody = await response.json();
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}
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catch (originalError) {
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throw ERROR_FACTORY.create("fetch-parse-error" /* AppCheckError.FETCH_PARSE_ERROR */, {
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originalErrorMessage: originalError === null || originalError === void 0 ? void 0 : originalError.message
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});
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}
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// Protobuf duration format.
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// https://developers.google.com/protocol-buffers/docs/reference/java/com/google/protobuf/Duration
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const match = responseBody.ttl.match(/^([\d.]+)(s)$/);
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if (!match || !match[2] || isNaN(Number(match[1]))) {
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throw ERROR_FACTORY.create("fetch-parse-error" /* AppCheckError.FETCH_PARSE_ERROR */, {
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originalErrorMessage: `ttl field (timeToLive) is not in standard Protobuf Duration ` +
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`format: ${responseBody.ttl}`
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});
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}
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const timeToLiveAsNumber = Number(match[1]) * 1000;
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const now = Date.now();
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return {
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token: responseBody.token,
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expireTimeMillis: now + timeToLiveAsNumber,
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issuedAtTimeMillis: now
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};
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}
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function getExchangeRecaptchaV3TokenRequest(app, reCAPTCHAToken) {
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const { projectId, appId, apiKey } = app.options;
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return {
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url: `${BASE_ENDPOINT}/projects/${projectId}/apps/${appId}:${EXCHANGE_RECAPTCHA_TOKEN_METHOD}?key=${apiKey}`,
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body: {
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'recaptcha_v3_token': reCAPTCHAToken
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}
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};
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}
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function getExchangeRecaptchaEnterpriseTokenRequest(app, reCAPTCHAToken) {
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const { projectId, appId, apiKey } = app.options;
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return {
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url: `${BASE_ENDPOINT}/projects/${projectId}/apps/${appId}:${EXCHANGE_RECAPTCHA_ENTERPRISE_TOKEN_METHOD}?key=${apiKey}`,
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body: {
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'recaptcha_enterprise_token': reCAPTCHAToken
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}
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};
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}
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function getExchangeDebugTokenRequest(app, debugToken) {
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const { projectId, appId, apiKey } = app.options;
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return {
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url: `${BASE_ENDPOINT}/projects/${projectId}/apps/${appId}:${EXCHANGE_DEBUG_TOKEN_METHOD}?key=${apiKey}`,
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body: {
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// eslint-disable-next-line
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debug_token: debugToken
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}
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};
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}
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|
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/**
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* @license
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|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
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*/
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const DB_NAME = 'firebase-app-check-database';
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const DB_VERSION = 1;
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const STORE_NAME = 'firebase-app-check-store';
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const DEBUG_TOKEN_KEY = 'debug-token';
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let dbPromise = null;
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function getDBPromise() {
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if (dbPromise) {
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return dbPromise;
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}
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dbPromise = new Promise((resolve, reject) => {
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try {
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const request = indexedDB.open(DB_NAME, DB_VERSION);
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request.onsuccess = event => {
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resolve(event.target.result);
|
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};
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request.onerror = event => {
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var _a;
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reject(ERROR_FACTORY.create("storage-open" /* AppCheckError.STORAGE_OPEN */, {
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originalErrorMessage: (_a = event.target.error) === null || _a === void 0 ? void 0 : _a.message
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}));
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};
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request.onupgradeneeded = event => {
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const db = event.target.result;
|
|
// We don't use 'break' in this switch statement, the fall-through
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// behavior is what we want, because if there are multiple versions between
|
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// the old version and the current version, we want ALL the migrations
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|
// that correspond to those versions to run, not only the last one.
|
|
// eslint-disable-next-line default-case
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switch (event.oldVersion) {
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case 0:
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db.createObjectStore(STORE_NAME, {
|
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keyPath: 'compositeKey'
|
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});
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}
|
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};
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|
}
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catch (e) {
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reject(ERROR_FACTORY.create("storage-open" /* AppCheckError.STORAGE_OPEN */, {
|
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originalErrorMessage: e === null || e === void 0 ? void 0 : e.message
|
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}));
|
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}
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});
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return dbPromise;
|
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}
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|
function readTokenFromIndexedDB(app) {
|
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return read(computeKey(app));
|
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}
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|
function writeTokenToIndexedDB(app, token) {
|
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return write(computeKey(app), token);
|
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}
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|
function writeDebugTokenToIndexedDB(token) {
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return write(DEBUG_TOKEN_KEY, token);
|
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}
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function readDebugTokenFromIndexedDB() {
|
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return read(DEBUG_TOKEN_KEY);
|
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}
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|
async function write(key, value) {
|
|
const db = await getDBPromise();
|
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const transaction = db.transaction(STORE_NAME, 'readwrite');
|
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const store = transaction.objectStore(STORE_NAME);
|
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const request = store.put({
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compositeKey: key,
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value
|
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});
|
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return new Promise((resolve, reject) => {
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request.onsuccess = _event => {
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resolve();
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};
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transaction.onerror = event => {
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var _a;
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reject(ERROR_FACTORY.create("storage-set" /* AppCheckError.STORAGE_WRITE */, {
|
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originalErrorMessage: (_a = event.target.error) === null || _a === void 0 ? void 0 : _a.message
|
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}));
|
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};
|
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});
|
|
}
|
|
async function read(key) {
|
|
const db = await getDBPromise();
|
|
const transaction = db.transaction(STORE_NAME, 'readonly');
|
|
const store = transaction.objectStore(STORE_NAME);
|
|
const request = store.get(key);
|
|
return new Promise((resolve, reject) => {
|
|
request.onsuccess = event => {
|
|
const result = event.target.result;
|
|
if (result) {
|
|
resolve(result.value);
|
|
}
|
|
else {
|
|
resolve(undefined);
|
|
}
|
|
};
|
|
transaction.onerror = event => {
|
|
var _a;
|
|
reject(ERROR_FACTORY.create("storage-get" /* AppCheckError.STORAGE_GET */, {
|
|
originalErrorMessage: (_a = event.target.error) === null || _a === void 0 ? void 0 : _a.message
|
|
}));
|
|
};
|
|
});
|
|
}
|
|
function computeKey(app) {
|
|
return `${app.options.appId}-${app.name}`;
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
const logger = new Logger('@firebase/app-check');
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/**
|
|
* Always resolves. In case of an error reading from indexeddb, resolve with undefined
|
|
*/
|
|
async function readTokenFromStorage(app) {
|
|
if (isIndexedDBAvailable()) {
|
|
let token = undefined;
|
|
try {
|
|
token = await readTokenFromIndexedDB(app);
|
|
}
|
|
catch (e) {
|
|
// swallow the error and return undefined
|
|
logger.warn(`Failed to read token from IndexedDB. Error: ${e}`);
|
|
}
|
|
return token;
|
|
}
|
|
return undefined;
|
|
}
|
|
/**
|
|
* Always resolves. In case of an error writing to indexeddb, print a warning and resolve the promise
|
|
*/
|
|
function writeTokenToStorage(app, token) {
|
|
if (isIndexedDBAvailable()) {
|
|
return writeTokenToIndexedDB(app, token).catch(e => {
|
|
// swallow the error and resolve the promise
|
|
logger.warn(`Failed to write token to IndexedDB. Error: ${e}`);
|
|
});
|
|
}
|
|
return Promise.resolve();
|
|
}
|
|
async function readOrCreateDebugTokenFromStorage() {
|
|
/**
|
|
* Theoretically race condition can happen if we read, then write in 2 separate transactions.
|
|
* But it won't happen here, because this function will be called exactly once.
|
|
*/
|
|
let existingDebugToken = undefined;
|
|
try {
|
|
existingDebugToken = await readDebugTokenFromIndexedDB();
|
|
}
|
|
catch (_e) {
|
|
// failed to read from indexeddb. We assume there is no existing debug token, and generate a new one.
|
|
}
|
|
if (!existingDebugToken) {
|
|
// create a new debug token
|
|
const newToken = uuidv4();
|
|
// We don't need to block on writing to indexeddb
|
|
// In case persistence failed, a new debug token will be generated everytime the page is refreshed.
|
|
// It renders the debug token useless because you have to manually register(whitelist) the new token in the firebase console again and again.
|
|
// If you see this error trying to use debug token, it probably means you are using a browser that doesn't support indexeddb.
|
|
// You should switch to a different browser that supports indexeddb
|
|
writeDebugTokenToIndexedDB(newToken).catch(e => logger.warn(`Failed to persist debug token to IndexedDB. Error: ${e}`));
|
|
return newToken;
|
|
}
|
|
else {
|
|
return existingDebugToken;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
function isDebugMode() {
|
|
const debugState = getDebugState();
|
|
return debugState.enabled;
|
|
}
|
|
async function getDebugToken() {
|
|
const state = getDebugState();
|
|
if (state.enabled && state.token) {
|
|
return state.token.promise;
|
|
}
|
|
else {
|
|
// should not happen!
|
|
throw Error(`
|
|
Can't get debug token in production mode.
|
|
`);
|
|
}
|
|
}
|
|
function initializeDebugMode() {
|
|
const globals = getGlobal();
|
|
const debugState = getDebugState();
|
|
// Set to true if this function has been called, whether or not
|
|
// it enabled debug mode.
|
|
debugState.initialized = true;
|
|
if (typeof globals.FIREBASE_APPCHECK_DEBUG_TOKEN !== 'string' &&
|
|
globals.FIREBASE_APPCHECK_DEBUG_TOKEN !== true) {
|
|
return;
|
|
}
|
|
debugState.enabled = true;
|
|
const deferredToken = new Deferred();
|
|
debugState.token = deferredToken;
|
|
if (typeof globals.FIREBASE_APPCHECK_DEBUG_TOKEN === 'string') {
|
|
deferredToken.resolve(globals.FIREBASE_APPCHECK_DEBUG_TOKEN);
|
|
}
|
|
else {
|
|
deferredToken.resolve(readOrCreateDebugTokenFromStorage());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
// Initial hardcoded value agreed upon across platforms for initial launch.
|
|
// Format left open for possible dynamic error values and other fields in the future.
|
|
const defaultTokenErrorData = { error: 'UNKNOWN_ERROR' };
|
|
/**
|
|
* Stringify and base64 encode token error data.
|
|
*
|
|
* @param tokenError Error data, currently hardcoded.
|
|
*/
|
|
function formatDummyToken(tokenErrorData) {
|
|
return base64.encodeString(JSON.stringify(tokenErrorData),
|
|
/* webSafe= */ false);
|
|
}
|
|
/**
|
|
* This function always resolves.
|
|
* The result will contain an error field if there is any error.
|
|
* In case there is an error, the token field in the result will be populated with a dummy value
|
|
*/
|
|
async function getToken$2(appCheck, forceRefresh = false) {
|
|
const app = appCheck.app;
|
|
ensureActivated(app);
|
|
const state = getStateReference(app);
|
|
/**
|
|
* First check if there is a token in memory from a previous `getToken()` call.
|
|
*/
|
|
let token = state.token;
|
|
let error = undefined;
|
|
/**
|
|
* If an invalid token was found in memory, clear token from
|
|
* memory and unset the local variable `token`.
|
|
*/
|
|
if (token && !isValid(token)) {
|
|
state.token = undefined;
|
|
token = undefined;
|
|
}
|
|
/**
|
|
* If there is no valid token in memory, try to load token from indexedDB.
|
|
*/
|
|
if (!token) {
|
|
// cachedTokenPromise contains the token found in IndexedDB or undefined if not found.
|
|
const cachedToken = await state.cachedTokenPromise;
|
|
if (cachedToken) {
|
|
if (isValid(cachedToken)) {
|
|
token = cachedToken;
|
|
}
|
|
else {
|
|
// If there was an invalid token in the indexedDB cache, clear it.
|
|
await writeTokenToStorage(app, undefined);
|
|
}
|
|
}
|
|
}
|
|
// Return the cached token (from either memory or indexedDB) if it's valid
|
|
if (!forceRefresh && token && isValid(token)) {
|
|
return {
|
|
token: token.token
|
|
};
|
|
}
|
|
// Only set to true if this `getToken()` call is making the actual
|
|
// REST call to the exchange endpoint, versus waiting for an already
|
|
// in-flight call (see debug and regular exchange endpoint paths below)
|
|
let shouldCallListeners = false;
|
|
/**
|
|
* DEBUG MODE
|
|
* If debug mode is set, and there is no cached token, fetch a new App
|
|
* Check token using the debug token, and return it directly.
|
|
*/
|
|
if (isDebugMode()) {
|
|
// Avoid making another call to the exchange endpoint if one is in flight.
|
|
if (!state.exchangeTokenPromise) {
|
|
state.exchangeTokenPromise = exchangeToken(getExchangeDebugTokenRequest(app, await getDebugToken()), appCheck.heartbeatServiceProvider).finally(() => {
|
|
// Clear promise when settled - either resolved or rejected.
|
|
state.exchangeTokenPromise = undefined;
|
|
});
|
|
shouldCallListeners = true;
|
|
}
|
|
const tokenFromDebugExchange = await state.exchangeTokenPromise;
|
|
// Write debug token to indexedDB.
|
|
await writeTokenToStorage(app, tokenFromDebugExchange);
|
|
// Write debug token to state.
|
|
state.token = tokenFromDebugExchange;
|
|
return { token: tokenFromDebugExchange.token };
|
|
}
|
|
/**
|
|
* There are no valid tokens in memory or indexedDB and we are not in
|
|
* debug mode.
|
|
* Request a new token from the exchange endpoint.
|
|
*/
|
|
try {
|
|
// Avoid making another call to the exchange endpoint if one is in flight.
|
|
if (!state.exchangeTokenPromise) {
|
|
// state.provider is populated in initializeAppCheck()
|
|
// ensureActivated() at the top of this function checks that
|
|
// initializeAppCheck() has been called.
|
|
state.exchangeTokenPromise = state.provider.getToken().finally(() => {
|
|
// Clear promise when settled - either resolved or rejected.
|
|
state.exchangeTokenPromise = undefined;
|
|
});
|
|
shouldCallListeners = true;
|
|
}
|
|
token = await getStateReference(app).exchangeTokenPromise;
|
|
}
|
|
catch (e) {
|
|
if (e.code === `appCheck/${"throttled" /* AppCheckError.THROTTLED */}`) {
|
|
// Warn if throttled, but do not treat it as an error.
|
|
logger.warn(e.message);
|
|
}
|
|
else {
|
|
// `getToken()` should never throw, but logging error text to console will aid debugging.
|
|
logger.error(e);
|
|
}
|
|
// Always save error to be added to dummy token.
|
|
error = e;
|
|
}
|
|
let interopTokenResult;
|
|
if (!token) {
|
|
// If token is undefined, there must be an error.
|
|
// Return a dummy token along with the error.
|
|
interopTokenResult = makeDummyTokenResult(error);
|
|
}
|
|
else if (error) {
|
|
if (isValid(token)) {
|
|
// It's also possible a valid token exists, but there's also an error.
|
|
// (Such as if the token is almost expired, tries to refresh, and
|
|
// the exchange request fails.)
|
|
// We add a special error property here so that the refresher will
|
|
// count this as a failed attempt and use the backoff instead of
|
|
// retrying repeatedly with no delay, but any 3P listeners will not
|
|
// be hindered in getting the still-valid token.
|
|
interopTokenResult = {
|
|
token: token.token,
|
|
internalError: error
|
|
};
|
|
}
|
|
else {
|
|
// No invalid tokens should make it to this step. Memory and cached tokens
|
|
// are checked. Other tokens are from fresh exchanges. But just in case.
|
|
interopTokenResult = makeDummyTokenResult(error);
|
|
}
|
|
}
|
|
else {
|
|
interopTokenResult = {
|
|
token: token.token
|
|
};
|
|
// write the new token to the memory state as well as the persistent storage.
|
|
// Only do it if we got a valid new token
|
|
state.token = token;
|
|
await writeTokenToStorage(app, token);
|
|
}
|
|
if (shouldCallListeners) {
|
|
notifyTokenListeners(app, interopTokenResult);
|
|
}
|
|
return interopTokenResult;
|
|
}
|
|
/**
|
|
* Internal API for limited use tokens. Skips all FAC state and simply calls
|
|
* the underlying provider.
|
|
*/
|
|
async function getLimitedUseToken$1(appCheck) {
|
|
const app = appCheck.app;
|
|
ensureActivated(app);
|
|
const { provider } = getStateReference(app);
|
|
if (isDebugMode()) {
|
|
const debugToken = await getDebugToken();
|
|
const { token } = await exchangeToken(getExchangeDebugTokenRequest(app, debugToken), appCheck.heartbeatServiceProvider);
|
|
return { token };
|
|
}
|
|
else {
|
|
// provider is definitely valid since we ensure AppCheck was activated
|
|
const { token } = await provider.getToken();
|
|
return { token };
|
|
}
|
|
}
|
|
function addTokenListener(appCheck, type, listener, onError) {
|
|
const { app } = appCheck;
|
|
const state = getStateReference(app);
|
|
const tokenObserver = {
|
|
next: listener,
|
|
error: onError,
|
|
type
|
|
};
|
|
state.tokenObservers = [...state.tokenObservers, tokenObserver];
|
|
// Invoke the listener async immediately if there is a valid token
|
|
// in memory.
|
|
if (state.token && isValid(state.token)) {
|
|
const validToken = state.token;
|
|
Promise.resolve()
|
|
.then(() => {
|
|
listener({ token: validToken.token });
|
|
initTokenRefresher(appCheck);
|
|
})
|
|
.catch(() => {
|
|
/* we don't care about exceptions thrown in listeners */
|
|
});
|
|
}
|
|
/**
|
|
* Wait for any cached token promise to resolve before starting the token
|
|
* refresher. The refresher checks to see if there is an existing token
|
|
* in state and calls the exchange endpoint if not. We should first let the
|
|
* IndexedDB check have a chance to populate state if it can.
|
|
*
|
|
* Listener call isn't needed here because cachedTokenPromise will call any
|
|
* listeners that exist when it resolves.
|
|
*/
|
|
// state.cachedTokenPromise is always populated in `activate()`.
|
|
void state.cachedTokenPromise.then(() => initTokenRefresher(appCheck));
|
|
}
|
|
function removeTokenListener(app, listener) {
|
|
const state = getStateReference(app);
|
|
const newObservers = state.tokenObservers.filter(tokenObserver => tokenObserver.next !== listener);
|
|
if (newObservers.length === 0 &&
|
|
state.tokenRefresher &&
|
|
state.tokenRefresher.isRunning()) {
|
|
state.tokenRefresher.stop();
|
|
}
|
|
state.tokenObservers = newObservers;
|
|
}
|
|
/**
|
|
* Logic to create and start refresher as needed.
|
|
*/
|
|
function initTokenRefresher(appCheck) {
|
|
const { app } = appCheck;
|
|
const state = getStateReference(app);
|
|
// Create the refresher but don't start it if `isTokenAutoRefreshEnabled`
|
|
// is not true.
|
|
let refresher = state.tokenRefresher;
|
|
if (!refresher) {
|
|
refresher = createTokenRefresher(appCheck);
|
|
state.tokenRefresher = refresher;
|
|
}
|
|
if (!refresher.isRunning() && state.isTokenAutoRefreshEnabled) {
|
|
refresher.start();
|
|
}
|
|
}
|
|
function createTokenRefresher(appCheck) {
|
|
const { app } = appCheck;
|
|
return new Refresher(
|
|
// Keep in mind when this fails for any reason other than the ones
|
|
// for which we should retry, it will effectively stop the proactive refresh.
|
|
async () => {
|
|
const state = getStateReference(app);
|
|
// If there is no token, we will try to load it from storage and use it
|
|
// If there is a token, we force refresh it because we know it's going to expire soon
|
|
let result;
|
|
if (!state.token) {
|
|
result = await getToken$2(appCheck);
|
|
}
|
|
else {
|
|
result = await getToken$2(appCheck, true);
|
|
}
|
|
/**
|
|
* getToken() always resolves. In case the result has an error field defined, it means
|
|
* the operation failed, and we should retry.
|
|
*/
|
|
if (result.error) {
|
|
throw result.error;
|
|
}
|
|
/**
|
|
* A special `internalError` field reflects that there was an error
|
|
* getting a new token from the exchange endpoint, but there's still a
|
|
* previous token that's valid for now and this should be passed to 2P/3P
|
|
* requests for a token. But we want this callback (`this.operation` in
|
|
* `Refresher`) to throw in order to kick off the Refresher's retry
|
|
* backoff. (Setting `hasSucceeded` to false.)
|
|
*/
|
|
if (result.internalError) {
|
|
throw result.internalError;
|
|
}
|
|
}, () => {
|
|
return true;
|
|
}, () => {
|
|
const state = getStateReference(app);
|
|
if (state.token) {
|
|
// issuedAtTime + (50% * total TTL) + 5 minutes
|
|
let nextRefreshTimeMillis = state.token.issuedAtTimeMillis +
|
|
(state.token.expireTimeMillis - state.token.issuedAtTimeMillis) *
|
|
0.5 +
|
|
5 * 60 * 1000;
|
|
// Do not allow refresh time to be past (expireTime - 5 minutes)
|
|
const latestAllowableRefresh = state.token.expireTimeMillis - 5 * 60 * 1000;
|
|
nextRefreshTimeMillis = Math.min(nextRefreshTimeMillis, latestAllowableRefresh);
|
|
return Math.max(0, nextRefreshTimeMillis - Date.now());
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}, TOKEN_REFRESH_TIME.RETRIAL_MIN_WAIT, TOKEN_REFRESH_TIME.RETRIAL_MAX_WAIT);
|
|
}
|
|
function notifyTokenListeners(app, token) {
|
|
const observers = getStateReference(app).tokenObservers;
|
|
for (const observer of observers) {
|
|
try {
|
|
if (observer.type === "EXTERNAL" /* ListenerType.EXTERNAL */ && token.error != null) {
|
|
// If this listener was added by a 3P call, send any token error to
|
|
// the supplied error handler. A 3P observer always has an error
|
|
// handler.
|
|
observer.error(token.error);
|
|
}
|
|
else {
|
|
// If the token has no error field, always return the token.
|
|
// If this is a 2P listener, return the token, whether or not it
|
|
// has an error field.
|
|
observer.next(token);
|
|
}
|
|
}
|
|
catch (e) {
|
|
// Errors in the listener function itself are always ignored.
|
|
}
|
|
}
|
|
}
|
|
function isValid(token) {
|
|
return token.expireTimeMillis - Date.now() > 0;
|
|
}
|
|
function makeDummyTokenResult(error) {
|
|
return {
|
|
token: formatDummyToken(defaultTokenErrorData),
|
|
error
|
|
};
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/**
|
|
* AppCheck Service class.
|
|
*/
|
|
class AppCheckService {
|
|
constructor(app, heartbeatServiceProvider) {
|
|
this.app = app;
|
|
this.heartbeatServiceProvider = heartbeatServiceProvider;
|
|
}
|
|
_delete() {
|
|
const { tokenObservers } = getStateReference(this.app);
|
|
for (const tokenObserver of tokenObservers) {
|
|
removeTokenListener(this.app, tokenObserver.next);
|
|
}
|
|
return Promise.resolve();
|
|
}
|
|
}
|
|
function factory(app, heartbeatServiceProvider) {
|
|
return new AppCheckService(app, heartbeatServiceProvider);
|
|
}
|
|
function internalFactory(appCheck) {
|
|
return {
|
|
getToken: forceRefresh => getToken$2(appCheck, forceRefresh),
|
|
getLimitedUseToken: () => getLimitedUseToken$1(appCheck),
|
|
addTokenListener: listener => addTokenListener(appCheck, "INTERNAL" /* ListenerType.INTERNAL */, listener),
|
|
removeTokenListener: listener => removeTokenListener(appCheck.app, listener)
|
|
};
|
|
}
|
|
|
|
const name = "@firebase/app-check";
|
|
const version = "0.8.2";
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
const RECAPTCHA_URL = 'https://www.google.com/recaptcha/api.js';
|
|
const RECAPTCHA_ENTERPRISE_URL = 'https://www.google.com/recaptcha/enterprise.js';
|
|
function initializeV3(app, siteKey) {
|
|
const initialized = new Deferred();
|
|
const state = getStateReference(app);
|
|
state.reCAPTCHAState = { initialized };
|
|
const divId = makeDiv(app);
|
|
const grecaptcha = getRecaptcha(false);
|
|
if (!grecaptcha) {
|
|
loadReCAPTCHAV3Script(() => {
|
|
const grecaptcha = getRecaptcha(false);
|
|
if (!grecaptcha) {
|
|
// it shouldn't happen.
|
|
throw new Error('no recaptcha');
|
|
}
|
|
queueWidgetRender(app, siteKey, grecaptcha, divId, initialized);
|
|
});
|
|
}
|
|
else {
|
|
queueWidgetRender(app, siteKey, grecaptcha, divId, initialized);
|
|
}
|
|
return initialized.promise;
|
|
}
|
|
function initializeEnterprise(app, siteKey) {
|
|
const initialized = new Deferred();
|
|
const state = getStateReference(app);
|
|
state.reCAPTCHAState = { initialized };
|
|
const divId = makeDiv(app);
|
|
const grecaptcha = getRecaptcha(true);
|
|
if (!grecaptcha) {
|
|
loadReCAPTCHAEnterpriseScript(() => {
|
|
const grecaptcha = getRecaptcha(true);
|
|
if (!grecaptcha) {
|
|
// it shouldn't happen.
|
|
throw new Error('no recaptcha');
|
|
}
|
|
queueWidgetRender(app, siteKey, grecaptcha, divId, initialized);
|
|
});
|
|
}
|
|
else {
|
|
queueWidgetRender(app, siteKey, grecaptcha, divId, initialized);
|
|
}
|
|
return initialized.promise;
|
|
}
|
|
/**
|
|
* Add listener to render the widget and resolve the promise when
|
|
* the grecaptcha.ready() event fires.
|
|
*/
|
|
function queueWidgetRender(app, siteKey, grecaptcha, container, initialized) {
|
|
grecaptcha.ready(() => {
|
|
// Invisible widgets allow us to set a different siteKey for each widget,
|
|
// so we use them to support multiple apps
|
|
renderInvisibleWidget(app, siteKey, grecaptcha, container);
|
|
initialized.resolve(grecaptcha);
|
|
});
|
|
}
|
|
/**
|
|
* Add invisible div to page.
|
|
*/
|
|
function makeDiv(app) {
|
|
const divId = `fire_app_check_${app.name}`;
|
|
const invisibleDiv = document.createElement('div');
|
|
invisibleDiv.id = divId;
|
|
invisibleDiv.style.display = 'none';
|
|
document.body.appendChild(invisibleDiv);
|
|
return divId;
|
|
}
|
|
async function getToken$1(app) {
|
|
ensureActivated(app);
|
|
// ensureActivated() guarantees that reCAPTCHAState is set
|
|
const reCAPTCHAState = getStateReference(app).reCAPTCHAState;
|
|
const recaptcha = await reCAPTCHAState.initialized.promise;
|
|
return new Promise((resolve, _reject) => {
|
|
// Updated after initialization is complete.
|
|
const reCAPTCHAState = getStateReference(app).reCAPTCHAState;
|
|
recaptcha.ready(() => {
|
|
resolve(
|
|
// widgetId is guaranteed to be available if reCAPTCHAState.initialized.promise resolved.
|
|
recaptcha.execute(reCAPTCHAState.widgetId, {
|
|
action: 'fire_app_check'
|
|
}));
|
|
});
|
|
});
|
|
}
|
|
/**
|
|
*
|
|
* @param app
|
|
* @param container - Id of a HTML element.
|
|
*/
|
|
function renderInvisibleWidget(app, siteKey, grecaptcha, container) {
|
|
const widgetId = grecaptcha.render(container, {
|
|
sitekey: siteKey,
|
|
size: 'invisible',
|
|
// Success callback - set state
|
|
callback: () => {
|
|
getStateReference(app).reCAPTCHAState.succeeded = true;
|
|
},
|
|
// Failure callback - set state
|
|
'error-callback': () => {
|
|
getStateReference(app).reCAPTCHAState.succeeded = false;
|
|
}
|
|
});
|
|
const state = getStateReference(app);
|
|
state.reCAPTCHAState = Object.assign(Object.assign({}, state.reCAPTCHAState), { // state.reCAPTCHAState is set in the initialize()
|
|
widgetId });
|
|
}
|
|
function loadReCAPTCHAV3Script(onload) {
|
|
const script = document.createElement('script');
|
|
script.src = RECAPTCHA_URL;
|
|
script.onload = onload;
|
|
document.head.appendChild(script);
|
|
}
|
|
function loadReCAPTCHAEnterpriseScript(onload) {
|
|
const script = document.createElement('script');
|
|
script.src = RECAPTCHA_ENTERPRISE_URL;
|
|
script.onload = onload;
|
|
document.head.appendChild(script);
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2021 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/**
|
|
* App Check provider that can obtain a reCAPTCHA V3 token and exchange it
|
|
* for an App Check token.
|
|
*
|
|
* @public
|
|
*/
|
|
class ReCaptchaV3Provider {
|
|
/**
|
|
* Create a ReCaptchaV3Provider instance.
|
|
* @param siteKey - ReCAPTCHA V3 siteKey.
|
|
*/
|
|
constructor(_siteKey) {
|
|
this._siteKey = _siteKey;
|
|
/**
|
|
* Throttle requests on certain error codes to prevent too many retries
|
|
* in a short time.
|
|
*/
|
|
this._throttleData = null;
|
|
}
|
|
/**
|
|
* Returns an App Check token.
|
|
* @internal
|
|
*/
|
|
async getToken() {
|
|
var _a, _b, _c;
|
|
throwIfThrottled(this._throttleData);
|
|
// Top-level `getToken()` has already checked that App Check is initialized
|
|
// and therefore this._app and this._heartbeatServiceProvider are available.
|
|
const attestedClaimsToken = await getToken$1(this._app).catch(_e => {
|
|
// reCaptcha.execute() throws null which is not very descriptive.
|
|
throw ERROR_FACTORY.create("recaptcha-error" /* AppCheckError.RECAPTCHA_ERROR */);
|
|
});
|
|
// Check if a failure state was set by the recaptcha "error-callback".
|
|
if (!((_a = getStateReference(this._app).reCAPTCHAState) === null || _a === void 0 ? void 0 : _a.succeeded)) {
|
|
throw ERROR_FACTORY.create("recaptcha-error" /* AppCheckError.RECAPTCHA_ERROR */);
|
|
}
|
|
let result;
|
|
try {
|
|
result = await exchangeToken(getExchangeRecaptchaV3TokenRequest(this._app, attestedClaimsToken), this._heartbeatServiceProvider);
|
|
}
|
|
catch (e) {
|
|
if ((_b = e.code) === null || _b === void 0 ? void 0 : _b.includes("fetch-status-error" /* AppCheckError.FETCH_STATUS_ERROR */)) {
|
|
this._throttleData = setBackoff(Number((_c = e.customData) === null || _c === void 0 ? void 0 : _c.httpStatus), this._throttleData);
|
|
throw ERROR_FACTORY.create("throttled" /* AppCheckError.THROTTLED */, {
|
|
time: getDurationString(this._throttleData.allowRequestsAfter - Date.now()),
|
|
httpStatus: this._throttleData.httpStatus
|
|
});
|
|
}
|
|
else {
|
|
throw e;
|
|
}
|
|
}
|
|
// If successful, clear throttle data.
|
|
this._throttleData = null;
|
|
return result;
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
initialize(app) {
|
|
this._app = app;
|
|
this._heartbeatServiceProvider = _getProvider(app, 'heartbeat');
|
|
initializeV3(app, this._siteKey).catch(() => {
|
|
/* we don't care about the initialization result */
|
|
});
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
isEqual(otherProvider) {
|
|
if (otherProvider instanceof ReCaptchaV3Provider) {
|
|
return this._siteKey === otherProvider._siteKey;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* App Check provider that can obtain a reCAPTCHA Enterprise token and exchange it
|
|
* for an App Check token.
|
|
*
|
|
* @public
|
|
*/
|
|
class ReCaptchaEnterpriseProvider {
|
|
/**
|
|
* Create a ReCaptchaEnterpriseProvider instance.
|
|
* @param siteKey - reCAPTCHA Enterprise score-based site key.
|
|
*/
|
|
constructor(_siteKey) {
|
|
this._siteKey = _siteKey;
|
|
/**
|
|
* Throttle requests on certain error codes to prevent too many retries
|
|
* in a short time.
|
|
*/
|
|
this._throttleData = null;
|
|
}
|
|
/**
|
|
* Returns an App Check token.
|
|
* @internal
|
|
*/
|
|
async getToken() {
|
|
var _a, _b, _c;
|
|
throwIfThrottled(this._throttleData);
|
|
// Top-level `getToken()` has already checked that App Check is initialized
|
|
// and therefore this._app and this._heartbeatServiceProvider are available.
|
|
const attestedClaimsToken = await getToken$1(this._app).catch(_e => {
|
|
// reCaptcha.execute() throws null which is not very descriptive.
|
|
throw ERROR_FACTORY.create("recaptcha-error" /* AppCheckError.RECAPTCHA_ERROR */);
|
|
});
|
|
// Check if a failure state was set by the recaptcha "error-callback".
|
|
if (!((_a = getStateReference(this._app).reCAPTCHAState) === null || _a === void 0 ? void 0 : _a.succeeded)) {
|
|
throw ERROR_FACTORY.create("recaptcha-error" /* AppCheckError.RECAPTCHA_ERROR */);
|
|
}
|
|
let result;
|
|
try {
|
|
result = await exchangeToken(getExchangeRecaptchaEnterpriseTokenRequest(this._app, attestedClaimsToken), this._heartbeatServiceProvider);
|
|
}
|
|
catch (e) {
|
|
if ((_b = e.code) === null || _b === void 0 ? void 0 : _b.includes("fetch-status-error" /* AppCheckError.FETCH_STATUS_ERROR */)) {
|
|
this._throttleData = setBackoff(Number((_c = e.customData) === null || _c === void 0 ? void 0 : _c.httpStatus), this._throttleData);
|
|
throw ERROR_FACTORY.create("throttled" /* AppCheckError.THROTTLED */, {
|
|
time: getDurationString(this._throttleData.allowRequestsAfter - Date.now()),
|
|
httpStatus: this._throttleData.httpStatus
|
|
});
|
|
}
|
|
else {
|
|
throw e;
|
|
}
|
|
}
|
|
// If successful, clear throttle data.
|
|
this._throttleData = null;
|
|
return result;
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
initialize(app) {
|
|
this._app = app;
|
|
this._heartbeatServiceProvider = _getProvider(app, 'heartbeat');
|
|
initializeEnterprise(app, this._siteKey).catch(() => {
|
|
/* we don't care about the initialization result */
|
|
});
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
isEqual(otherProvider) {
|
|
if (otherProvider instanceof ReCaptchaEnterpriseProvider) {
|
|
return this._siteKey === otherProvider._siteKey;
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Custom provider class.
|
|
* @public
|
|
*/
|
|
class CustomProvider {
|
|
constructor(_customProviderOptions) {
|
|
this._customProviderOptions = _customProviderOptions;
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
async getToken() {
|
|
// custom provider
|
|
const customToken = await this._customProviderOptions.getToken();
|
|
// Try to extract IAT from custom token, in case this token is not
|
|
// being newly issued. JWT timestamps are in seconds since epoch.
|
|
const issuedAtTimeSeconds = issuedAtTime(customToken.token);
|
|
// Very basic validation, use current timestamp as IAT if JWT
|
|
// has no `iat` field or value is out of bounds.
|
|
const issuedAtTimeMillis = issuedAtTimeSeconds !== null &&
|
|
issuedAtTimeSeconds < Date.now() &&
|
|
issuedAtTimeSeconds > 0
|
|
? issuedAtTimeSeconds * 1000
|
|
: Date.now();
|
|
return Object.assign(Object.assign({}, customToken), { issuedAtTimeMillis });
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
initialize(app) {
|
|
this._app = app;
|
|
}
|
|
/**
|
|
* @internal
|
|
*/
|
|
isEqual(otherProvider) {
|
|
if (otherProvider instanceof CustomProvider) {
|
|
return (this._customProviderOptions.getToken.toString() ===
|
|
otherProvider._customProviderOptions.getToken.toString());
|
|
}
|
|
else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Set throttle data to block requests until after a certain time
|
|
* depending on the failed request's status code.
|
|
* @param httpStatus - Status code of failed request.
|
|
* @param throttleData - `ThrottleData` object containing previous throttle
|
|
* data state.
|
|
* @returns Data about current throttle state and expiration time.
|
|
*/
|
|
function setBackoff(httpStatus, throttleData) {
|
|
/**
|
|
* Block retries for 1 day for the following error codes:
|
|
*
|
|
* 404: Likely malformed URL.
|
|
*
|
|
* 403:
|
|
* - Attestation failed
|
|
* - Wrong API key
|
|
* - Project deleted
|
|
*/
|
|
if (httpStatus === 404 || httpStatus === 403) {
|
|
return {
|
|
backoffCount: 1,
|
|
allowRequestsAfter: Date.now() + ONE_DAY,
|
|
httpStatus
|
|
};
|
|
}
|
|
else {
|
|
/**
|
|
* For all other error codes, the time when it is ok to retry again
|
|
* is based on exponential backoff.
|
|
*/
|
|
const backoffCount = throttleData ? throttleData.backoffCount : 0;
|
|
const backoffMillis = calculateBackoffMillis(backoffCount, 1000, 2);
|
|
return {
|
|
backoffCount: backoffCount + 1,
|
|
allowRequestsAfter: Date.now() + backoffMillis,
|
|
httpStatus
|
|
};
|
|
}
|
|
}
|
|
function throwIfThrottled(throttleData) {
|
|
if (throttleData) {
|
|
if (Date.now() - throttleData.allowRequestsAfter <= 0) {
|
|
// If before, throw.
|
|
throw ERROR_FACTORY.create("throttled" /* AppCheckError.THROTTLED */, {
|
|
time: getDurationString(throttleData.allowRequestsAfter - Date.now()),
|
|
httpStatus: throttleData.httpStatus
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @license
|
|
* Copyright 2020 Google LLC
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/**
|
|
* Activate App Check for the given app. Can be called only once per app.
|
|
* @param app - the {@link @firebase/app#FirebaseApp} to activate App Check for
|
|
* @param options - App Check initialization options
|
|
* @public
|
|
*/
|
|
function initializeAppCheck(app = getApp(), options) {
|
|
app = getModularInstance(app);
|
|
const provider = _getProvider(app, 'app-check');
|
|
// Ensure initializeDebugMode() is only called once.
|
|
if (!getDebugState().initialized) {
|
|
initializeDebugMode();
|
|
}
|
|
// Log a message containing the debug token when `initializeAppCheck()`
|
|
// is called in debug mode.
|
|
if (isDebugMode()) {
|
|
// Do not block initialization to get the token for the message.
|
|
void getDebugToken().then(token =>
|
|
// Not using logger because I don't think we ever want this accidentally hidden.
|
|
console.log(`App Check debug token: ${token}. You will need to add it to your app's App Check settings in the Firebase console for it to work.`));
|
|
}
|
|
if (provider.isInitialized()) {
|
|
const existingInstance = provider.getImmediate();
|
|
const initialOptions = provider.getOptions();
|
|
if (initialOptions.isTokenAutoRefreshEnabled ===
|
|
options.isTokenAutoRefreshEnabled &&
|
|
initialOptions.provider.isEqual(options.provider)) {
|
|
return existingInstance;
|
|
}
|
|
else {
|
|
throw ERROR_FACTORY.create("already-initialized" /* AppCheckError.ALREADY_INITIALIZED */, {
|
|
appName: app.name
|
|
});
|
|
}
|
|
}
|
|
const appCheck = provider.initialize({ options });
|
|
_activate(app, options.provider, options.isTokenAutoRefreshEnabled);
|
|
// If isTokenAutoRefreshEnabled is false, do not send any requests to the
|
|
// exchange endpoint without an explicit call from the user either directly
|
|
// or through another Firebase library (storage, functions, etc.)
|
|
if (getStateReference(app).isTokenAutoRefreshEnabled) {
|
|
// Adding a listener will start the refresher and fetch a token if needed.
|
|
// This gets a token ready and prevents a delay when an internal library
|
|
// requests the token.
|
|
// Listener function does not need to do anything, its base functionality
|
|
// of calling getToken() already fetches token and writes it to memory/storage.
|
|
addTokenListener(appCheck, "INTERNAL" /* ListenerType.INTERNAL */, () => { });
|
|
}
|
|
return appCheck;
|
|
}
|
|
/**
|
|
* Activate App Check
|
|
* @param app - Firebase app to activate App Check for.
|
|
* @param provider - reCAPTCHA v3 provider or
|
|
* custom token provider.
|
|
* @param isTokenAutoRefreshEnabled - If true, the SDK automatically
|
|
* refreshes App Check tokens as needed. If undefined, defaults to the
|
|
* value of `app.automaticDataCollectionEnabled`, which defaults to
|
|
* false and can be set in the app config.
|
|
*/
|
|
function _activate(app, provider, isTokenAutoRefreshEnabled) {
|
|
// Create an entry in the APP_CHECK_STATES map. Further changes should
|
|
// directly mutate this object.
|
|
const state = setInitialState(app, Object.assign({}, DEFAULT_STATE));
|
|
state.activated = true;
|
|
state.provider = provider; // Read cached token from storage if it exists and store it in memory.
|
|
state.cachedTokenPromise = readTokenFromStorage(app).then(cachedToken => {
|
|
if (cachedToken && isValid(cachedToken)) {
|
|
state.token = cachedToken;
|
|
// notify all listeners with the cached token
|
|
notifyTokenListeners(app, { token: cachedToken.token });
|
|
}
|
|
return cachedToken;
|
|
});
|
|
// Use value of global `automaticDataCollectionEnabled` (which
|
|
// itself defaults to false if not specified in config) if
|
|
// `isTokenAutoRefreshEnabled` param was not provided by user.
|
|
state.isTokenAutoRefreshEnabled =
|
|
isTokenAutoRefreshEnabled === undefined
|
|
? app.automaticDataCollectionEnabled
|
|
: isTokenAutoRefreshEnabled;
|
|
state.provider.initialize(app);
|
|
}
|
|
/**
|
|
* Set whether App Check will automatically refresh tokens as needed.
|
|
*
|
|
* @param appCheckInstance - The App Check service instance.
|
|
* @param isTokenAutoRefreshEnabled - If true, the SDK automatically
|
|
* refreshes App Check tokens as needed. This overrides any value set
|
|
* during `initializeAppCheck()`.
|
|
* @public
|
|
*/
|
|
function setTokenAutoRefreshEnabled(appCheckInstance, isTokenAutoRefreshEnabled) {
|
|
const app = appCheckInstance.app;
|
|
const state = getStateReference(app);
|
|
// This will exist if any product libraries have called
|
|
// `addTokenListener()`
|
|
if (state.tokenRefresher) {
|
|
if (isTokenAutoRefreshEnabled === true) {
|
|
state.tokenRefresher.start();
|
|
}
|
|
else {
|
|
state.tokenRefresher.stop();
|
|
}
|
|
}
|
|
state.isTokenAutoRefreshEnabled = isTokenAutoRefreshEnabled;
|
|
}
|
|
/**
|
|
* Get the current App Check token. Attaches to the most recent
|
|
* in-flight request if one is present. Returns null if no token
|
|
* is present and no token requests are in-flight.
|
|
*
|
|
* @param appCheckInstance - The App Check service instance.
|
|
* @param forceRefresh - If true, will always try to fetch a fresh token.
|
|
* If false, will use a cached token if found in storage.
|
|
* @public
|
|
*/
|
|
async function getToken(appCheckInstance, forceRefresh) {
|
|
const result = await getToken$2(appCheckInstance, forceRefresh);
|
|
if (result.error) {
|
|
throw result.error;
|
|
}
|
|
return { token: result.token };
|
|
}
|
|
/**
|
|
* Requests a Firebase App Check token. This method should be used
|
|
* only if you need to authorize requests to a non-Firebase backend.
|
|
*
|
|
* Returns limited-use tokens that are intended for use with your
|
|
* non-Firebase backend endpoints that are protected with
|
|
* <a href="https://firebase.google.com/docs/app-check/custom-resource-backend#replay-protection">
|
|
* Replay Protection</a>. This method
|
|
* does not affect the token generation behavior of the
|
|
* #getAppCheckToken() method.
|
|
*
|
|
* @param appCheckInstance - The App Check service instance.
|
|
* @returns The limited use token.
|
|
* @public
|
|
*/
|
|
function getLimitedUseToken(appCheckInstance) {
|
|
return getLimitedUseToken$1(appCheckInstance);
|
|
}
|
|
/**
|
|
* Wraps `addTokenListener`/`removeTokenListener` methods in an `Observer`
|
|
* pattern for public use.
|
|
*/
|
|
function onTokenChanged(appCheckInstance, onNextOrObserver, onError,
|
|
/**
|
|
* NOTE: Although an `onCompletion` callback can be provided, it will
|
|
* never be called because the token stream is never-ending.
|
|
* It is added only for API consistency with the observer pattern, which
|
|
* we follow in JS APIs.
|
|
*/
|
|
// eslint-disable-next-line @typescript-eslint/no-unused-vars
|
|
onCompletion) {
|
|
let nextFn = () => { };
|
|
let errorFn = () => { };
|
|
if (onNextOrObserver.next != null) {
|
|
nextFn = onNextOrObserver.next.bind(onNextOrObserver);
|
|
}
|
|
else {
|
|
nextFn = onNextOrObserver;
|
|
}
|
|
if (onNextOrObserver.error != null) {
|
|
errorFn = onNextOrObserver.error.bind(onNextOrObserver);
|
|
}
|
|
else if (onError) {
|
|
errorFn = onError;
|
|
}
|
|
addTokenListener(appCheckInstance, "EXTERNAL" /* ListenerType.EXTERNAL */, nextFn, errorFn);
|
|
return () => removeTokenListener(appCheckInstance.app, nextFn);
|
|
}
|
|
|
|
/**
|
|
* The Firebase App Check Web SDK.
|
|
*
|
|
* @remarks
|
|
* Firebase App Check does not work in a Node.js environment using `ReCaptchaV3Provider` or
|
|
* `ReCaptchaEnterpriseProvider`, but can be used in Node.js if you use
|
|
* `CustomProvider` and write your own attestation method.
|
|
*
|
|
* @packageDocumentation
|
|
*/
|
|
const APP_CHECK_NAME = 'app-check';
|
|
const APP_CHECK_NAME_INTERNAL = 'app-check-internal';
|
|
function registerAppCheck() {
|
|
// The public interface
|
|
_registerComponent(new Component(APP_CHECK_NAME, container => {
|
|
// getImmediate for FirebaseApp will always succeed
|
|
const app = container.getProvider('app').getImmediate();
|
|
const heartbeatServiceProvider = container.getProvider('heartbeat');
|
|
return factory(app, heartbeatServiceProvider);
|
|
}, "PUBLIC" /* ComponentType.PUBLIC */)
|
|
.setInstantiationMode("EXPLICIT" /* InstantiationMode.EXPLICIT */)
|
|
/**
|
|
* Initialize app-check-internal after app-check is initialized to make AppCheck available to
|
|
* other Firebase SDKs
|
|
*/
|
|
.setInstanceCreatedCallback((container, _identifier, _appcheckService) => {
|
|
container.getProvider(APP_CHECK_NAME_INTERNAL).initialize();
|
|
}));
|
|
// The internal interface used by other Firebase products
|
|
_registerComponent(new Component(APP_CHECK_NAME_INTERNAL, container => {
|
|
const appCheck = container.getProvider('app-check').getImmediate();
|
|
return internalFactory(appCheck);
|
|
}, "PUBLIC" /* ComponentType.PUBLIC */).setInstantiationMode("EXPLICIT" /* InstantiationMode.EXPLICIT */));
|
|
registerVersion(name, version);
|
|
}
|
|
registerAppCheck();
|
|
|
|
export { CustomProvider, ReCaptchaEnterpriseProvider, ReCaptchaV3Provider, getLimitedUseToken, getToken, initializeAppCheck, onTokenChanged, setTokenAutoRefreshEnabled };
|
|
//# sourceMappingURL=index.esm2017.js.map
|