dave/libre-hardware-monitor-exporter
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This commit is contained in:
PhatPhuckDave
2025-10-05 17:55:26 +02:00
parent 2eac3d2610
commit e90eacd065
1 changed files with 93 additions and 113 deletions
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88
Program.cs
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@@ -3,8 +3,7 @@ using System.Text;
using LibreHardwareMonitor.Hardware; using LibreHardwareMonitor.Hardware;
var port = Environment.GetEnvironmentVariable("PORT"); var port = Environment.GetEnvironmentVariable("PORT");
if (!int.TryParse(port, out var httpPort)) if (!int.TryParse(port, out var httpPort)) {
{
httpPort = 9646; // default port httpPort = 9646; // default port
} }
@@ -12,33 +11,26 @@ var listener = new HttpListener();
listener.Prefixes.Add($"http://*:{httpPort}/"); listener.Prefixes.Add($"http://*:{httpPort}/");
listener.Start(); listener.Start();
var computer = new Computer var computer =
{ new Computer { IsCpuEnabled = true, IsGpuEnabled = true,
IsCpuEnabled = true, IsMemoryEnabled = true, IsMotherboardEnabled = true,
IsGpuEnabled = true, IsControllerEnabled = true, IsNetworkEnabled = true,
IsMemoryEnabled = true, IsStorageEnabled = true };
IsMotherboardEnabled = true,
IsControllerEnabled = true,
IsNetworkEnabled = true,
IsStorageEnabled = true
};
computer.Open(); computer.Open();
Console.WriteLine($"LibreHardwareMonitorExporter listening on http://localhost:{httpPort}/metrics"); Console.WriteLine(
$"LibreHardwareMonitorExporter listening on http://localhost:{httpPort}/metrics");
while (true) while (true) {
{
var context = await listener.GetContextAsync(); var context = await listener.GetContextAsync();
if (context.Request.HttpMethod != "GET") if (context.Request.HttpMethod != "GET") {
{
context.Response.StatusCode = 405; context.Response.StatusCode = 405;
context.Response.Close(); context.Response.Close();
continue; continue;
} }
if (context.Request.Url?.AbsolutePath != "/metrics") if (context.Request.Url?.AbsolutePath != "/metrics") {
{
context.Response.StatusCode = 404; context.Response.StatusCode = 404;
context.Response.Close(); context.Response.Close();
continue; continue;
@@ -55,32 +47,27 @@ while (true)
context.Response.Close(); context.Response.Close();
} }
static void AppendMetrics(StringBuilder output, Computer computer) static void AppendMetrics(StringBuilder output, Computer computer) {
{
var updateVisitor = new UpdateVisitor(); var updateVisitor = new UpdateVisitor();
computer.Accept(updateVisitor); computer.Accept(updateVisitor);
// Basic example metrics for temperature, load, clock, power, fan // Basic example metrics for temperature, load, clock, power, fan
foreach (var hardware in computer.Hardware) foreach (var hardware in computer.Hardware) {
{
EmitHardwareMetrics(output, hardware); EmitHardwareMetrics(output, hardware);
foreach (var sub in hardware.SubHardware) foreach (var sub in hardware.SubHardware) {
{
EmitHardwareMetrics(output, sub); EmitHardwareMetrics(output, sub);
} }
} }
} }
static void EmitHardwareMetrics(StringBuilder output, IHardware hardware) static void EmitHardwareMetrics(StringBuilder output, IHardware hardware) {
{
var hardwareLabel = SanitizeLabel(hardware.Name); var hardwareLabel = SanitizeLabel(hardware.Name);
foreach (var sensor in hardware.Sensors) foreach (var sensor in hardware.Sensors) {
{ if (sensor.Value is null)
if (sensor.Value is null) continue; continue;
var sensorLabel = SanitizeLabel(sensor.Name); var sensorLabel = SanitizeLabel(sensor.Name);
var value = sensor.Value.Value; var value = sensor.Value.Value;
var metricName = sensor.SensorType switch var metricName = sensor.SensorType switch {
{
SensorType.Temperature => "lhm_temperature_celsius", SensorType.Temperature => "lhm_temperature_celsius",
SensorType.Load => "lhm_load_percent", SensorType.Load => "lhm_load_percent",
SensorType.Clock => "lhm_clock_mhz", SensorType.Clock => "lhm_clock_mhz",
@@ -96,44 +83,37 @@ static void EmitHardwareMetrics(StringBuilder output, IHardware hardware)
_ => null _ => null
}; };
if (metricName == null) continue; if (metricName == null)
continue;
output.Append(metricName); output.Append(metricName);
output.Append("{"); output.Append("{");
output.Append($"hardware=\"{hardwareLabel}\",sensor=\"{sensorLabel}\",type=\"{sensor.SensorType}\""); output.Append(
$"hardware=\"{hardwareLabel}\",sensor=\"{sensorLabel}\",type=\"{sensor.SensorType}\"");
output.Append("} "); output.Append("} ");
output.AppendLine(value.ToString(System.Globalization.CultureInfo.InvariantCulture)); output.AppendLine(
value.ToString(System.Globalization.CultureInfo.InvariantCulture));
} }
} }
static string SanitizeLabel(string raw) static string SanitizeLabel(string raw) {
{
var sb = new StringBuilder(raw.Length); var sb = new StringBuilder(raw.Length);
foreach (var ch in raw) foreach (var ch in raw) {
{ if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9') || ch == '_' || ch == ':' || ch == '.') (ch >= '0' && ch <= '9') || ch == '_' || ch == ':' || ch == '.') {
{
sb.Append(ch); sb.Append(ch);
} } else {
else
{
sb.Append('_'); sb.Append('_');
} }
} }
return sb.ToString(); return sb.ToString();
} }
sealed class UpdateVisitor : IVisitor sealed class UpdateVisitor : IVisitor {
{ public void VisitComputer(IComputer computer) { computer.Traverse(this); }
public void VisitComputer(IComputer computer)
{
computer.Traverse(this);
}
public void VisitHardware(IHardware hardware) public void VisitHardware(IHardware hardware) {
{
hardware.Update(); hardware.Update();
foreach (var sub in hardware.SubHardware) foreach (var sub in hardware.SubHardware) {
{
sub.Accept(this); sub.Accept(this);
} }
} }