59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
const { DebugBuilder } = require("./utilities/debugBuilder");
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const log = new DebugBuilder("server", "libUtils");
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/**
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* sleep - sleep/wait
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* @constructor
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*/
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exports.sleep = (ms) => new Promise((resolve) => {
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setTimeout(resolve, ms);
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})
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/**
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* Normalize a port into a number, string, or false.
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*
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* @param {*} val Value to be normalized
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* @returns Normalized value
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*/
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exports.normalizePort = (val) => {
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var port = parseInt(val, 10);
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if (isNaN(port)) {
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// named pipe
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return val;
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}
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if (port >= 0) {
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// port number
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return port;
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}
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return false;
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}
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/**
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* Event listener for HTTP server "error" event.
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*/
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exports.onError = (error) => {
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if (error.syscall !== 'listen') {
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throw error;
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}
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var bind = typeof port === 'string'
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? 'Pipe ' + port
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: 'Port ' + port;
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// handle specific listen errors with friendly messages
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switch (error.code) {
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case 'EACCES':
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log.ERROR(bind + ' requires elevated privileges');
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process.exit(1);
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break;
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case 'EADDRINUSE':
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log.ERROR(bind + ' is already in use');
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process.exit(1);
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break;
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default:
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throw error;
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}
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} |