74 lines
1.6 KiB
JavaScript
74 lines
1.6 KiB
JavaScript
'use strict';
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const childProcess = require('child_process');
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module.exports = class Util {
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static isValidIPv4(str) {
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const blocks = str.split('.');
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if (blocks.length !== 4) return false;
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for (let value of blocks) {
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value = parseInt(value, 10);
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if (Number.isNaN(value)) return false;
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if (value < 0 || value > 255) return false;
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}
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return true;
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}
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static promisify(fn) {
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// eslint-disable-next-line func-names
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return function(req, res) {
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Promise.resolve().then(async () => fn(req, res))
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.then(result => {
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if (res.headersSent) return;
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if (typeof result === 'undefined') {
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return res
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.status(204)
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.end();
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}
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return res
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.status(200)
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.json(result);
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})
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.catch(error => {
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if (typeof error === 'string') {
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error = new Error(error);
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}
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// eslint-disable-next-line no-console
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console.error(error);
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return res
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.status(error.statusCode || 500)
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.json({
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error: error.message || error.toString(),
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stack: error.stack,
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});
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});
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};
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}
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static async exec(cmd) {
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// eslint-disable-next-line no-console
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console.log(`$ ${cmd}`);
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if (process.platform !== 'linux') {
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return '';
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}
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return new Promise((resolve, reject) => {
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childProcess.exec(cmd, {
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shell: 'bash',
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}, (err, stdout) => {
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if (err) return reject(err);
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return resolve(String(stdout).trim());
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});
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});
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}
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};
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