loopback/lib/models/application.js

// Authentication schemes
var AuthenticationScheme = {
    scheme: String, // local, facebook, google, twitter, linkedin, github
    credential: Object // Scheme-specific credentials
}

// Push notification settings
var PushNotificationSetting = {
    platform: {type: String, required: true}, // apns, gcm, mpns
    configuration: Object // platform-specific configurations
}

/**
 * Data model for Application
 */
var ApplicationSchema = {

    // Basic information
    id: {type: String, required: true}, // The id
    name: {type: String, required: true}, // The name
    description: String, // The description
    icon: String, // The icon image url

    owner: String, // The user id of the developer who registers the application
    collaborators: [String], // A list of users ids who have permissions to work on this app

    // EMail
    email: String, // e-mail address
    emailVerified: Boolean, // Is the e-mail verified

    // oAuth 2.0 settings
    url: String, // The application url
    callbackUrls: [String], // oAuth 2.0 code/token callback url
    permissions: [String], // A list of permissions required by the application

    // Keys
    clientKey: String,
    javaScriptKey: String,
    restApiKey: String,
    windowsKey: String,
    masterKey: String,

    // Push notification
    pushSettings: [PushNotificationSetting],

    // User Authentication
    authenticationEnabled: {type: Boolean, default: true},
    anonymousAllowed: {type: Boolean, default: true},
    authenticationSchemes: [AuthenticationScheme],

    status: {type: String, default: 'sandbox'}, // Status of the application, production/sandbox/disabled

    // Timestamps
    created: {type: Date, default: Date},
    modified: {type: Date, default: Date}
};


/**
 * Application management functions
 */

var crypto = require('crypto');

function generateKey(hmacKey, algorithm) {
    hmacKey = hmacKey || 'asteroid';
    algorithm = algorithm || 'sha256';
    var hmac = crypto.createHmac(algorithm, hmacKey);
    var buf = crypto.randomBytes(64);
    hmac.update(buf);
    return hmac.digest('base64');
}

module.exports = function (dataSource) {
    dataSource = dataSource || new require('jugglingdb').ModelBuilder();


    var Application = dataSource.define('Application', ApplicationSchema);

    Application.afterInitialize = function () {
        var app = this;
        // use data argument to update object
        app.created = app.modified = new Date();
        app.id = generateKey('id', 'sha1');
        app.clientKey = generateKey('client');
        app.javaScriptKey = generateKey('javaScript');
        app.restApiKey = generateKey('restApi');
        app.windowsKey = generateKey('windows');
        app.masterKey = generateKey('master');
    };

    // Register a new application
    Application.register = function (name, description, owner) {
        return new Application({name: name, description: description, owner: owner});
    }

    return Application;
}