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lib
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node_modules
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pm2
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node_modules
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systeminformation
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battery.js
'use strict'; // @ts-check; // ================================================================================== // battery.js // ---------------------------------------------------------------------------------- // Description: System Information - library // for Node.js // Copyright: (c) 2014 - 2024 // Author: Sebastian Hildebrandt // ---------------------------------------------------------------------------------- // License: MIT // ================================================================================== // 6. Battery // ---------------------------------------------------------------------------------- const exec = require('child_process').exec; const fs = require('fs'); const util = require('./util'); 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 parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity) { const result = {}; let status = util.getValue(lines, 'BatteryStatus', ':').trim(); // 1 = "Discharging" // 2 = "On A/C" // 3 = "Fully Charged" // 4 = "Low" // 5 = "Critical" // 6 = "Charging" // 7 = "Charging High" // 8 = "Charging Low" // 9 = "Charging Critical" // 10 = "Undefined" // 11 = "Partially Charged" if (status >= 0) { const statusValue = status ? parseInt(status) : 0; result.status = statusValue; result.hasBattery = true; result.maxCapacity = fullChargeCapacity || parseInt(util.getValue(lines, 'DesignCapacity', ':') || 0); result.designedCapacity = parseInt(util.getValue(lines, 'DesignCapacity', ':') || designedCapacity); result.voltage = parseInt(util.getValue(lines, 'DesignVoltage', ':') || 0) / 1000.0; result.capacityUnit = 'mWh'; result.percent = parseInt(util.getValue(lines, 'EstimatedChargeRemaining', ':') || 0); result.currentCapacity = parseInt(result.maxCapacity * result.percent / 100); result.isCharging = (statusValue >= 6 && statusValue <= 9) || statusValue === 11 || ((statusValue !== 3) && (statusValue !== 1) && result.percent < 100); result.acConnected = result.isCharging || statusValue === 2; result.model = util.getValue(lines, 'DeviceID', ':'); } else { result.status = -1; } return result; } module.exports = function (callback) { return new Promise((resolve) => { process.nextTick(() => { let result = { hasBattery: false, cycleCount: 0, isCharging: false, designedCapacity: 0, maxCapacity: 0, currentCapacity: 0, voltage: 0, capacityUnit: '', percent: 0, timeRemaining: null, acConnected: true, type: '', model: '', manufacturer: '', serial: '' }; if (_linux) { let battery_path = ''; if (fs.existsSync('/sys/class/power_supply/BAT1/uevent')) { battery_path = '/sys/class/power_supply/BAT1/'; } else if (fs.existsSync('/sys/class/power_supply/BAT0/uevent')) { battery_path = '/sys/class/power_supply/BAT0/'; } let acConnected = false; let acPath = ''; if (fs.existsSync('/sys/class/power_supply/AC/online')) { acPath = '/sys/class/power_supply/AC/online'; } else if (fs.existsSync('/sys/class/power_supply/AC0/online')) { acPath = '/sys/class/power_supply/AC0/online'; } if (acPath) { const file = fs.readFileSync(acPath); acConnected = file.toString().trim() === '1'; } if (battery_path) { fs.readFile(battery_path + 'uevent', function (error, stdout) { if (!error) { let lines = stdout.toString().split('\n'); result.isCharging = (util.getValue(lines, 'POWER_SUPPLY_STATUS', '=').toLowerCase() === 'charging'); result.acConnected = acConnected || result.isCharging; result.voltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_NOW', '='), 10) / 1000000.0; result.capacityUnit = result.voltage ? 'mWh' : 'mAh'; result.cycleCount = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CYCLE_COUNT', '='), 10); result.maxCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL', '=', true, true), 10) / 1000.0 * (result.voltage || 1)); const desingedMinVoltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_MIN_DESIGN', '='), 10) / 1000000.0; result.designedCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL_DESIGN', '=', true, true), 10) / 1000.0 * (desingedMinVoltage || result.voltage || 1)); result.currentCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_NOW', '='), 10) / 1000.0 * (result.voltage || 1)); if (!result.maxCapacity) { result.maxCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL', '=', true, true), 10) / 1000.0; result.designedCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL_DESIGN', '=', true, true), 10) / 1000.0 | result.maxCapacity; result.currentCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10) / 1000.0; } const percent = util.getValue(lines, 'POWER_SUPPLY_CAPACITY', '='); const energy = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10); const power = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_POWER_NOW', '='), 10); const current = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CURRENT_NOW', '='), 10); const charge = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_NOW', '='), 10); result.percent = parseInt('0' + percent, 10); if (result.maxCapacity && result.currentCapacity) { result.hasBattery = true; if (!percent) { result.percent = 100.0 * result.currentCapacity / result.maxCapacity; } } if (result.isCharging) { result.hasBattery = true; } if (energy && power) { result.timeRemaining = Math.floor(energy / power * 60); } else if (current && charge) { result.timeRemaining = Math.floor(charge / current * 60); } else if (current && result.currentCapacity) { result.timeRemaining = Math.floor(result.currentCapacity / current * 60); } result.type = util.getValue(lines, 'POWER_SUPPLY_TECHNOLOGY', '='); result.model = util.getValue(lines, 'POWER_SUPPLY_MODEL_NAME', '='); result.manufacturer = util.getValue(lines, 'POWER_SUPPLY_MANUFACTURER', '='); result.serial = util.getValue(lines, 'POWER_SUPPLY_SERIAL_NUMBER', '='); if (callback) { callback(result); } resolve(result); } else { if (callback) { callback(result); } resolve(result); } }); } else { if (callback) { callback(result); } resolve(result); } } if (_freebsd || _openbsd || _netbsd) { exec('sysctl -i hw.acpi.battery hw.acpi.acline', function (error, stdout) { let lines = stdout.toString().split('\n'); const batteries = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.units'), 10); const percent = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.life'), 10); result.hasBattery = (batteries > 0); result.cycleCount = null; result.isCharging = util.getValue(lines, 'hw.acpi.acline') !== '1'; result.acConnected = result.isCharging; result.maxCapacity = null; result.currentCapacity = null; result.capacityUnit = 'unknown'; result.percent = batteries ? percent : null; if (callback) { callback(result); } resolve(result); }); } if (_darwin) { exec('ioreg -n AppleSmartBattery -r | egrep "CycleCount|IsCharging|DesignCapacity|MaxCapacity|CurrentCapacity|BatterySerialNumber|TimeRemaining|Voltage"; pmset -g batt | grep %', function (error, stdout) { if (stdout) { let lines = stdout.toString().replace(/ +/g, '').replace(/"+/g, '').replace(/-/g, '').split('\n'); result.cycleCount = parseInt('0' + util.getValue(lines, 'cyclecount', '='), 10); result.voltage = parseInt('0' + util.getValue(lines, 'voltage', '='), 10) / 1000.0; result.capacityUnit = result.voltage ? 'mWh' : 'mAh'; result.maxCapacity = Math.round(parseInt('0' + util.getValue(lines, 'applerawmaxcapacity', '='), 10) * (result.voltage || 1)); result.currentCapacity = Math.round(parseInt('0' + util.getValue(lines, 'applerawcurrentcapacity', '='), 10) * (result.voltage || 1)); result.designedCapacity = Math.round(parseInt('0' + util.getValue(lines, 'DesignCapacity', '='), 10) * (result.voltage || 1)); result.manufacturer = 'Apple'; result.serial = util.getValue(lines, 'BatterySerialNumber', '='); let percent = null; const line = util.getValue(lines, 'internal', 'Battery'); let parts = line.split(';'); if (parts && parts[0]) { let parts2 = parts[0].split('\t'); if (parts2 && parts2[1]) { percent = parseFloat(parts2[1].trim().replace(/%/g, '')); } } if (parts && parts[1]) { result.isCharging = (parts[1].trim() === 'charging'); result.acConnected = (parts[1].trim() !== 'discharging'); } else { result.isCharging = util.getValue(lines, 'ischarging', '=').toLowerCase() === 'yes'; result.acConnected = result.isCharging; } if (result.maxCapacity && result.currentCapacity) { result.hasBattery = true; result.type = 'Li-ion'; result.percent = percent !== null ? percent : Math.round(100.0 * result.currentCapacity / result.maxCapacity); if (!result.isCharging) { result.timeRemaining = parseInt('0' + util.getValue(lines, 'TimeRemaining', '='), 10); } } } if (callback) { callback(result); } resolve(result); }); } if (_sunos) { if (callback) { callback(result); } resolve(result); } if (_windows) { try { const workload = []; workload.push(util.powerShell('Get-CimInstance Win32_Battery | select BatteryStatus, DesignCapacity, DesignVoltage, EstimatedChargeRemaining, DeviceID | fl')); workload.push(util.powerShell('(Get-WmiObject -Class BatteryStaticData -Namespace ROOT/WMI).DesignedCapacity')); workload.push(util.powerShell('(Get-CimInstance -Class BatteryFullChargedCapacity -Namespace ROOT/WMI).FullChargedCapacity')); util.promiseAll( workload ).then((data) => { if (data) { let parts = data.results[0].split(/\n\s*\n/); let batteries = []; const hasValue = value => /\S/.test(value); for (let i = 0; i < parts.length; i++) { if (hasValue(parts[i]) && (!batteries.length || !hasValue(parts[i - 1]))) { batteries.push([]); } if (hasValue(parts[i])) { batteries[batteries.length - 1].push(parts[i]); } } let designCapacities = data.results[1].split('\r\n').filter(e => e); let fullChargeCapacities = data.results[2].split('\r\n').filter(e => e); if (batteries.length) { let first = false; let additionalBatteries = []; for (let i = 0; i < batteries.length; i++) { let lines = batteries[i][0].split('\r\n'); const designedCapacity = designCapacities && designCapacities.length >= (i + 1) && designCapacities[i] ? util.toInt(designCapacities[i]) : 0; const fullChargeCapacity = fullChargeCapacities && fullChargeCapacities.length >= (i + 1) && fullChargeCapacities[i] ? util.toInt(fullChargeCapacities[i]) : 0; const parsed = parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity); if (!first && parsed.status > 0 && parsed.status !== 10) { result.hasBattery = parsed.hasBattery; result.maxCapacity = parsed.maxCapacity; result.designedCapacity = parsed.designedCapacity; result.voltage = parsed.voltage; result.capacityUnit = parsed.capacityUnit; result.percent = parsed.percent; result.currentCapacity = parsed.currentCapacity; result.isCharging = parsed.isCharging; result.acConnected = parsed.acConnected; result.model = parsed.model; first = true; } else if (parsed.status !== -1) { additionalBatteries.push( { hasBattery: parsed.hasBattery, maxCapacity: parsed.maxCapacity, designedCapacity: parsed.designedCapacity, voltage: parsed.voltage, capacityUnit: parsed.capacityUnit, percent: parsed.percent, currentCapacity: parsed.currentCapacity, isCharging: parsed.isCharging, timeRemaining: null, acConnected: parsed.acConnected, model: parsed.model, type: '', manufacturer: '', serial: '' } ); } } if (!first && additionalBatteries.length) { result = additionalBatteries[0]; additionalBatteries.shift(); } if (additionalBatteries.length) { result.additionalBatteries = additionalBatteries; } } } if (callback) { callback(result); } resolve(result); }); } catch (e) { if (callback) { callback(result); } resolve(result); } } }); }); };
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