You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

65 lines
1.9 KiB
JavaScript

'use strict'
const log = require('npmlog')
const execFile = require('child_process').execFile
const path = require('path')
function logWithPrefix (log, prefix) {
function setPrefix (logFunction) {
return (...args) => logFunction.apply(null, [ prefix, ...args ]) // eslint-disable-line
}
return {
silly: setPrefix(log.silly),
verbose: setPrefix(log.verbose),
info: setPrefix(log.info),
warn: setPrefix(log.warn),
error: setPrefix(log.error)
}
}
function regGetValue (key, value, addOpts, cb) {
const outReValue = value.replace(/\W/g, '.')
const outRe = new RegExp(`^\\s+${outReValue}\\s+REG_\\w+\\s+(\\S.*)$`, 'im')
const reg = path.join(process.env.SystemRoot, 'System32', 'reg.exe')
const regArgs = ['query', key, '/v', value].concat(addOpts)
log.silly('reg', 'running', reg, regArgs)
const child = execFile(reg, regArgs, { encoding: 'utf8' },
function (err, stdout, stderr) {
log.silly('reg', 'reg.exe stdout = %j', stdout)
if (err || stderr.trim() !== '') {
log.silly('reg', 'reg.exe err = %j', err && (err.stack || err))
log.silly('reg', 'reg.exe stderr = %j', stderr)
return cb(err, stderr)
}
const result = outRe.exec(stdout)
if (!result) {
log.silly('reg', 'error parsing stdout')
return cb(new Error('Could not parse output of reg.exe'))
}
log.silly('reg', 'found: %j', result[1])
cb(null, result[1])
})
child.stdin.end()
}
function regSearchKeys (keys, value, addOpts, cb) {
var i = 0
const search = () => {
log.silly('reg-search', 'looking for %j in %j', value, keys[i])
regGetValue(keys[i], value, addOpts, (err, res) => {
++i
if (err && i < keys.length) { return search() }
cb(err, res)
})
}
search()
}
module.exports = {
logWithPrefix: logWithPrefix,
regGetValue: regGetValue,
regSearchKeys: regSearchKeys
}