90 lines
2.1 KiB
JavaScript
90 lines
2.1 KiB
JavaScript
'use strict'
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const networkPattern = /network[\s\S]*?=[\s\S]*?{([\s\S]*?)}/gi
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const quoteRe = new RegExp('"', 'g')
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const filePath = '/etc/wpa_supplicant/wpa_supplicant.conf'
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const reconfigure = '/sbin/wpa_cli reconfigure'
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const refresh = '/sbin/ifdown wlan0 && /sbin/ifup --force wlan0'
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const iwlist = '/sbin/iwlist wlan0 scanning | grep "ESSID:"'
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const iwgetid = '/sbin/iwgetid'
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const exec = require('child_process').exec
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const fs = require('fs')
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class wifi {
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constructor () {
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this._callback = () => {}
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this._entry = null
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}
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list (callback) {
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exec(iwlist, (err, stdout, stderr) => {
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if (err) {
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console.error(err)
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return callback(err)
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}
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const lines = stdout.split('\n')
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const output = []
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let line
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for (let l of lines) {
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line = l.replace('ESSID:', '').trim()
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if (line != '""') {
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line = line.replace(quoteRe, '')
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output.push(line)
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}
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}
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return callback(null, output)
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})
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}
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_readConfigCb (err, data) {
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if (err) {
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console.error(err)
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return this._callback(err)
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}
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if (data.search(networkPattern) === -1) {
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data += `\n${this._entry}`
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} else {
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data = data.replace(networkPattern, entry)
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}
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fs.writeFile(filePath, data, 'utf8', this._writeConfigCb)
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}
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_writeConfigCb (err) {
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if (err) {
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console.error(err)
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return this._callback(err)
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}
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exec(reconfigure, this._reconfigureCb)
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}
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_reconfigureCb (err, stdout, stderr) {
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if (err) {
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console.error(err)
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return this._callback(err)
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}
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console.log('Wifi reconfigured')
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exec(refresh, this._refreshCb)
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}
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_refreshCb (err, stdout, stderr) {
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if (err) {
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console.error(err)
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return this._callback(err)
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}
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console.log('Wifi refreshed')
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this._callback(null, { ssid : ssid, pwd : pwd.length })
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this._callback = () => {}
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}
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setNetwork (ssid, pwd, callback) {
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this._entry = `network={\n\tssid="${ssid}"\n\tpsk="${pwd}"\n}\n`
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this._callback = callback
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fs.readFile(filePath, 'utf8', this._readConfigCb)
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}
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getNetwork (callback) {
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exec(iwgetid, (err, stdout, stderr) => {
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if (err) {
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return callback(err)
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}
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callback(null, stdout)
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})
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}
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}
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module.exports = new wifi() |