Innovenergy_trunk/frontend/node_modules/chrome-remote-interface/lib/external-request.js

44 lines
1.3 KiB
JavaScript

'use strict';
const dns = require('dns');
const util = require('util');
const REQUEST_TIMEOUT = 10000;
// callback(err, data)
async function externalRequest(transport, options, callback) {
// perform the DNS lookup manually so that the HTTP host header generated by
// http.get will contain the IP address, this is needed because since Chrome
// 66 the host header cannot contain an host name different than localhost
// (see https://github.com/cyrus-and/chrome-remote-interface/issues/340)
if (!options.useHostName) {
try {
const {address} = await util.promisify(dns.lookup)(options.host);
options.host = address;
} catch (err) {
callback(err);
return;
}
}
// perform the actual request
const request = transport.get(options, (response) => {
let data = '';
response.on('data', (chunk) => {
data += chunk;
});
response.on('end', () => {
if (response.statusCode === 200) {
callback(null, data);
} else {
callback(new Error(data));
}
});
});
request.setTimeout(REQUEST_TIMEOUT, () => {
request.abort();
});
request.on('error', callback);
}
module.exports = externalRequest;