restaf-server/src/config.js

Custom app server for Viya apps

/*
 *  ------------------------------------------------------------------------------------
 *  * Copyright (c) SAS Institute Inc.
 *  *  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.
 * ----------------------------------------------------------------------------------------
 *
 */

'use strict';

let fs = require('fs');
import parseDocker from './parseDocker';

function config (appEnv, dockerFile) {
	
	if (dockerFile !=null) {
		parseDocker(dockerFile);
	}

	if (appEnv != null) {
		iconfig(appEnv);
	}
	
	if (process.env.APPPORT == null && process.env.EXPOSEDPORT != null) {
		process.env.APPPORT = process.env.EXPOSEDPORT;
		console.log(`APPPORT set to value of exposed port ${process.env.APPPORT}`)
	}

	process.env.SAS_PROTOCOL =
		process.env.SAS_SSL_ENABLED === 'YES' ? 'https://' : 'http://';

	// fixing usual user error of adding a space after the url
	if (process.env.VIYA_SERVER != null) {
		let t = process.env.VIYA_SERVER.split(' ');
		process.env.VIYA_SERVER = t[0];

		if (process.env.VIYA_SERVER.indexOf('http') < 0) {
			process.env.VIYA_SERVER =
				process.env.SAS_PROTOCOL + process.env.VIYA_SERVER;
		}
	}
}

function iconfig (appEnv) {
	try {
		let data = fs.readFileSync(appEnv, 'utf8');
		let d = data.split(/\r?\n/);
		console.log('Configuration specified via raf.env');
		d.forEach(l => {
			if (l.length > 0 && l.indexOf('#') === -1) {
				let la = l.split('=');
				let envName = la[0];
				if (la.length === 2 && la[1].length > 0) {
					process.env[envName] = la[1];
				} else {
					console.log(
						`${envName} inherited as ${process.env[envName]}`
					);
				}
			}
		});
	} catch (err) {
		console.log(err);
		process.exit(0);
	}
}

export default config;