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import dgram from 'dgram';
import RssParser from 'rss-parser';
import xml2js from 'xml2js';
/**
* Retrieve Jenkins instance computer information.
*
* @param {Function} cb: standard cb(err, result) callback
*/
function computer(cb) {
const depth = 1;
this.remoteAccessApi.getComputer(depth, cb);
}
/**
* Retrieve Jenkins crumb, this is needed when sending POST requests to a Jenkins
* instance with CSRF protection.
*
* @param {Function} cb: standard cb(err, result) callback
*/
function crumb(cb) {
this.baseApi.getCrumb(cb);
}
/**
* Discover whether there's a Jenkins instance running on the specified host.
*
* @param {String} host: hostname
* @param {Function} cb: standard cb(err, result) callback
*/
function discover(host, cb) {
const TIMEOUT = 5000;
const socket = dgram.createSocket('udp4');
const buffer = new Buffer('Long live Jenkins!');
const parser = new xml2js.Parser();
socket.on('error', function (err) {
socket.close();
cb(err);
});
socket.on('message', function (result) {
socket.close();
parser.addListener('end', function (result) {
cb(null, result);
});
parser.parseString(result);
});
socket.send(buffer, 0, buffer.length, 33848, host, function (err, result) {
if (err) {
socket.close();
cb(err);
}
});
setTimeout(function () {
cb(new Error(`Unable to find any Jenkins instance on ${host}`));
}, TIMEOUT);
}
/**
* Retrieve Jenkins instance information.
*
* @param {Function} cb: standard cb(err, result) callback
*/
function info(cb) {
this.remoteAccessApi.getJenkins(cb);
}
/**
* Parse Jenkins instance feed (all jobs).
*
* @param {Function} cb: standard cb(err, result) callback
*/
function parseFeed(cb) {
const url = this.url + '/rssAll';
new RssParser().parseURL(url, cb);
}
/**
* Retrieve a list of jobs in the queue waiting for available
* executor or for a previously running build of the same job
* to finish.
*
* @param {Function} cb: standard cb(err, result) callback
*/
function queue(cb) {
this.remoteAccessApi.getQueue(cb);
}
/**
* Retrieve Jenkins version number from x-jenkins header.
* If x-jenkins header does not exist, then it's assumed that the server is not a Jenkins instance.
*
* @param {Function} cb: standard cb(err, result) callback
*/
function version(cb) {
function _cb(err, result, response) {
if (err) {
cb(err);
} else if (response.headers['x-jenkins']) {
cb(null, response.headers['x-jenkins']);
} else {
cb(new Error('Not a Jenkins server'));
}
}
this.remoteAccessApi.headJenkins(_cb);
}
const exports = {
computer: computer,
crumb: crumb,
discover: discover,
info: info,
parseFeed: parseFeed,
queue: queue,
version: version
};
export {
exports as default
}; |