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130 | 'use strict';
const Promise = require('pinkie-promise');
const queryString = require('querystring');
const fetch = require('node-fetch');
const objectAssign = require('object-assign');
const nodeUrl = require('url');
const electron = require('electron');
const BrowserWindow = electron.BrowserWindow || electron.remote.BrowserWindow;
module.exports = function (config, windowParams) {
function getAuthorizationCode(opts) {
opts = opts || {};
if (!config.redirectUri) {
config.redirectUri = 'urn:ietf:wg:oauth:2.0:oob';
}
var urlParams = {
response_type: 'code',
redirect_uri: config.redirectUri,
client_id: config.clientId
};
if (opts.scope) {
urlParams.scope = opts.scope;
}
if (opts.accessType) {
urlParams.access_type = opts.accessType;
}
var url = config.authorizationUrl + '?' + queryString.stringify(urlParams);
return new Promise(function (resolve, reject) {
const authWindow = new BrowserWindow(windowParams || {'use-content-size': true});
authWindow.loadURL(url);
authWindow.show();
authWindow.on('closed', () => {
reject(new Error('window was closed by user'));
});
function onCallback(url) {
var url_parts = nodeUrl.parse(url, true);
var query = url_parts.query;
var code = query.code;
var error = query.error;
if (error !== undefined) {
reject(error);
authWindow.removeAllListeners('closed');
setImmediate(function () {
authWindow.close();
});
} else if (code) {
resolve(code);
authWindow.removeAllListeners('closed');
setImmediate(function () {
authWindow.close();
});
}
}
authWindow.webContents.on('will-navigate', (event, url) => {
onCallback(url);
});
authWindow.webContents.on('will-redirect', (event, url) => {
onCallback(url);
});
authWindow.webContents.on('did-get-redirect-request', (event, oldUrl, newUrl) => {
onCallback(newUrl);
});
});
}
function tokenRequest(data) {
const header = {
'Accept': 'application/json',
'Content-Type': 'application/x-www-form-urlencoded'
};
if (config.useBasicAuthorizationHeader) {
header.Authorization = 'Basic ' + new Buffer(config.clientId + ':' + config.clientSecret).toString('base64');
} else {
objectAssign(data, {
client_id: config.clientId,
client_secret: config.clientSecret
});
}
return fetch(config.tokenUrl, {
method: 'POST',
headers: header,
body: queryString.stringify(data)
}).then(res => {
return res.json();
});
}
function getAccessToken(opts) {
return getAuthorizationCode(opts)
.then(authorizationCode => {
var tokenRequestData = {
code: authorizationCode,
grant_type: 'authorization_code',
redirect_uri: config.redirectUri
};
tokenRequestData = Object.assign(tokenRequestData, opts.additionalTokenRequestData);
return tokenRequest(tokenRequestData);
});
}
function refreshToken(refreshToken) {
return tokenRequest({
refresh_token: refreshToken,
grant_type: 'refresh_token',
redirect_uri: config.redirectUri
});
}
return {
getAuthorizationCode: getAuthorizationCode,
getAccessToken: getAccessToken,
refreshToken: refreshToken
};
};
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