authHelper.js

// Copyright(c) Microsoft. All rights reserved. Licensed under the MIT license. See full license at the bottom of this file.
var AuthenticationContext = require("adal-node").AuthenticationContext;

// The application registration (must match Azure AD config)
var credentials = {
    authority: "https://login.microsoftonline.com/common",
    client_id: "caaf4d2a-0300-4517-933e-9977e56765da",
    client_secret: "GxAKwNBQCs8JsSr4CwxYid0auwefTBLypHTx62LXojE=",
    redirect_uri: "http://o365ondocker.cloudapp.net:80/login"
};

/**
 * Generate a fully formed uri to use for authentication based on the supplied resource argument
 * @return {string} a fully formed uri with which authentcation can be completed
 */
function getAuthUrl() {
    return credentials.authority + "/oauth2/authorize" +
        "?client_id=" + credentials.client_id +
        "&response_type=code" +
        "&redirect_uri=" + credentials.redirect_uri;
};

/**
 * Gets a token for a given resource.
 * @param {string} code An authorization code returned from a client.
 * @param {string} res A URI that identifies the resource for which the token is valid.
 * @param {AcquireTokenCallback} callback The callback function.
 */
function getTokenFromCode(res, code, callback) {
    var authContext = new AuthenticationContext(credentials.authority);
    authContext.acquireTokenWithAuthorizationCode(code, credentials.redirect_uri, res, credentials.client_id, credentials.client_secret, function (err, response) {
        if (err) {
            callback(null);
        }
        else {
            callback(response);
        }
    });
};


/**
 * Gets a new access token via a previously issued refresh token.
 * @param {string} res The OAuth resource for which a token is being request. This parameter is optional and can be set to null.
 * @param {string} token A refresh token returned in a tokne response from a previous invocation of acquireToken.
 * @param {AcquireTokenCallback} callback The callback function.
 */
function getTokenFromRefreshToken(res, token, callback) {
    var authContext = new AuthenticationContext(credentials.authority);
    authContext.acquireTokenWithRefreshToken(token, credentials.client_id, credentials.client_secret, res, function (err, response) {
        if (err) {
            callback(null);
        }
        else {
            callback(response);
        }
    });
};

exports.getAuthUrl = getAuthUrl;
exports.getTokenFromCode = getTokenFromCode;
exports.getTokenFromRefreshToken = getTokenFromRefreshToken;
exports.TOKEN_CACHE_KEY = 'TOKEN_CACHE_KEY';
exports.TENANT_CACHE_KEY = 'TENANT_CACHE_KEY';

/*
######################################################################
O365-Nodejs-Microsoft-Graph-Connect, https://github.com/OfficeDev/O365-Nodejs-Microsoft-Graph-Connect

Copyright (c) Microsoft Corporation
All rights reserved.

MIT License:
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.
######################################################################
*/