tra-analysis/website/functions/node_modules/firebase-functions/lib/apps.js
2019-01-06 13:14:45 -06:00

104 lines
3.5 KiB
JavaScript

"use strict";
// The MIT License (MIT)
//
// Copyright (c) 2017 Firebase
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
Object.defineProperty(exports, "__esModule", { value: true });
const _ = require("lodash");
const firebase = require("firebase-admin");
const config_1 = require("./config");
/** @internal */
function apps() {
if (typeof apps.singleton === 'undefined') {
apps.init();
}
return apps.singleton;
}
exports.apps = apps;
/** @internal */
(function (apps) {
/** @internal */
apps.garbageCollectionInterval = 2 * 60 * 1000;
/** @internal */
function delay(delay) {
return new Promise(resolve => {
setTimeout(resolve, delay);
});
}
apps.delay = delay;
apps.init = () => (apps.singleton = new Apps());
/** @internal */
class Apps {
constructor() {
this._refCounter = {};
}
_appAlive(appName) {
try {
let app = firebase.app(appName);
return !_.get(app, 'isDeleted_');
}
catch (e) {
return false;
}
}
_destroyApp(appName) {
if (!this._appAlive(appName)) {
return;
}
firebase
.app(appName)
.delete()
.catch(_.noop);
}
retain() {
let increment = (n) => {
return (n || 0) + 1;
};
// Increment counter for admin because function might use event.data.ref
_.update(this._refCounter, '__admin__', increment);
}
release() {
let decrement = (n) => {
return n - 1;
};
return delay(apps.garbageCollectionInterval).then(() => {
_.update(this._refCounter, '__admin__', decrement);
_.forEach(this._refCounter, (count, key) => {
if (count <= 0) {
this._destroyApp(key);
}
});
});
}
get admin() {
if (this._appAlive('__admin__')) {
return firebase.app('__admin__');
}
return firebase.initializeApp(this.firebaseArgs, '__admin__');
}
get firebaseArgs() {
return _.assign({}, config_1.firebaseConfig(), {
credential: firebase.credential.applicationDefault(),
});
}
}
apps.Apps = Apps;
})(apps = exports.apps || (exports.apps = {}));