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'use strict';
// @ts-check
// ==================================================================================
// audio.js
// ----------------------------------------------------------------------------------
// Description: System Information - library
// for Node.js
// Copyright: (c) 2014 - 2022
// Author: Sebastian Hildebrandt
// ----------------------------------------------------------------------------------
// License: MIT
// ==================================================================================
// 17. bluetooth
// ----------------------------------------------------------------------------------
const exec = require('child_process').exec;
const execSync = require('child_process').execSync;
const path = require('path');
const util = require('./util');
const fs = require('fs');
let _platform = process.platform;
const _linux = (_platform === 'linux' || _platform === 'android');
const _darwin = (_platform === 'darwin');
const _windows = (_platform === 'win32');
const _freebsd = (_platform === 'freebsd');
const _openbsd = (_platform === 'openbsd');
const _netbsd = (_platform === 'netbsd');
const _sunos = (_platform === 'sunos');
function parseBluetoothType(str) {
let result = '';
if (str.indexOf('keyboard') >= 0) { result = 'Keyboard'; }
if (str.indexOf('mouse') >= 0) { result = 'Mouse'; }
if (str.indexOf('speaker') >= 0) { result = 'Speaker'; }
if (str.indexOf('headset') >= 0) { result = 'Headset'; }
if (str.indexOf('phone') >= 0) { result = 'Phone'; }
// to be continued ...
return result;
}
function parseLinuxBluetoothInfo(lines, macAddr1, macAddr2) {
const result = {};
result.device = null;
result.name = util.getValue(lines, 'name', '=');
result.manufacturer = null;
result.macDevice = macAddr1;
result.macHost = macAddr2;
result.batteryPercent = null;
result.type = parseBluetoothType(result.name.toLowerCase());
result.connected = false;
return result;
}
function parseDarwinBluetoothDevices(bluetoothObject, macAddr2) {
const result = {};
const typeStr = ((bluetoothObject.device_minorClassOfDevice_string || bluetoothObject.device_majorClassOfDevice_string || '') + (bluetoothObject.device_name || '')).toLowerCase();
result.device = bluetoothObject.device_services || '';
result.name = bluetoothObject.device_name || '';
result.manufacturer = bluetoothObject.device_manufacturer || '';
result.macDevice = (bluetoothObject.device_addr || '').toLowerCase().replace(/-/g, ':');
result.macHost = macAddr2;
result.batteryPercent = bluetoothObject.device_batteryPercent || null;
result.type = parseBluetoothType(typeStr);
result.connected = bluetoothObject.device_isconnected === 'attrib_Yes' || false;
return result;
}
function parseWindowsBluetooth(lines) {
const result = {};
result.device = null;
result.name = util.getValue(lines, 'name', ':');
result.manufacturer = util.getValue(lines, 'manufacturer', ':');
result.macDevice = null;
result.macHost = null;
result.batteryPercent = null;
result.type = parseBluetoothType(result.name.toLowerCase());
result.connected = null;
return result;
}
function bluetoothDevices(callback) {
return new Promise((resolve) => {
process.nextTick(() => {
let result = [];
if (_linux) {
// get files in /var/lib/bluetooth/ recursive
const btFiles = util.getFilesInPath('/var/lib/bluetooth/');
for (let i = 0; i < btFiles.length; i++) {
const filename = path.basename(btFiles[i]);
const pathParts = btFiles[i].split('/');
const macAddr1 = pathParts.length >= 6 ? pathParts[pathParts.length - 2] : null;
const macAddr2 = pathParts.length >= 7 ? pathParts[pathParts.length - 3] : null;
if (filename === 'info') {
const infoFile = fs.readFileSync(btFiles[i], { encoding: 'utf8' }).split('\n');
result.push(parseLinuxBluetoothInfo(infoFile, macAddr1, macAddr2));
}
}
// determine "connected" with hcitool con
try {
const hdicon = execSync('hcitool con').toString().toLowerCase();
for (let i = 0; i < result.length; i++) {
if (result[i].macDevice && result[i].macDevice.length > 10 && hdicon.indexOf(result[i].macDevice.toLowerCase()) >= 0) {
result[i].connected = true;
}
}
} catch (e) {
util.noop();
}
if (callback) {
callback(result);
}
resolve(result);
}
if (_darwin) {
let cmd = 'system_profiler SPBluetoothDataType -json';
exec(cmd, function (error, stdout) {
if (!error) {
try {
const outObj = JSON.parse(stdout.toString());
if (outObj.SPBluetoothDataType && outObj.SPBluetoothDataType.length && outObj.SPBluetoothDataType[0] && outObj.SPBluetoothDataType[0]['device_title'] && outObj.SPBluetoothDataType[0]['device_title'].length) {
// missing: host BT Adapter macAddr ()
let macAddr2 = null;
if (outObj.SPBluetoothDataType[0]['local_device_title'] && outObj.SPBluetoothDataType[0].local_device_title.general_address) {
macAddr2 = outObj.SPBluetoothDataType[0].local_device_title.general_address.toLowerCase().replace(/-/g, ':');
}
for (let i = 0; i < outObj.SPBluetoothDataType[0]['device_title'].length; i++) {
const obj = outObj.SPBluetoothDataType[0]['device_title'][i];
const objKey = Object.keys(obj);
if (objKey && objKey.length === 1) {
const innerObject = obj[objKey[0]];
innerObject.device_name = objKey[0];
const bluetoothDevice = parseDarwinBluetoothDevices(innerObject, macAddr2);
result.push(bluetoothDevice);
}
}
}
} catch (e) {
util.noop();
}
}
if (callback) {
callback(result);
}
resolve(result);
});
}
if (_windows) {
util.powerShell('Get-WmiObject Win32_PNPEntity | select PNPClass, Name, Manufacturer | fl').then((stdout, error) => {
if (!error) {
const parts = stdout.toString().split(/\n\s*\n/);
for (let i = 0; i < parts.length; i++) {
if (util.getValue(parts[i].split('\n'), 'PNPClass', ':') === 'Bluetooth') {
result.push(parseWindowsBluetooth(parts[i].split('\n')));
}
}
}
if (callback) {
callback(result);
}
resolve(result);
});
}
if (_freebsd || _netbsd || _openbsd || _sunos) {
resolve(null);
}
});
});
}
exports.bluetoothDevices = bluetoothDevices;
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