windows_exporter/internal/collector/license/license.go

90 lines
1.8 KiB
Go

//go:build windows
package license
import (
"log/slog"
"github.com/alecthomas/kingpin/v2"
"github.com/prometheus-community/windows_exporter/internal/headers/slc"
"github.com/prometheus-community/windows_exporter/internal/mi"
"github.com/prometheus-community/windows_exporter/internal/types"
"github.com/prometheus/client_golang/prometheus"
)
const Name = "license"
var labelMap = map[slc.SL_GENUINE_STATE]string{
slc.SL_GEN_STATE_IS_GENUINE: "genuine",
slc.SL_GEN_STATE_INVALID_LICENSE: "invalid_license",
slc.SL_GEN_STATE_TAMPERED: "tampered",
slc.SL_GEN_STATE_OFFLINE: "offline",
slc.SL_GEN_STATE_LAST: "last",
}
type Config struct{}
var ConfigDefaults = Config{}
// A Collector is a Prometheus Collector for WMI Win32_PerfRawData_DNS_DNS metrics.
type Collector struct {
config Config
licenseStatus *prometheus.Desc
}
func New(config *Config) *Collector {
if config == nil {
config = &ConfigDefaults
}
c := &Collector{
config: *config,
}
return c
}
func NewWithFlags(_ *kingpin.Application) *Collector {
return &Collector{}
}
func (c *Collector) GetName() string {
return Name
}
func (c *Collector) Close() error {
return nil
}
func (c *Collector) Build(_ *slog.Logger, _ *mi.Session) error {
c.licenseStatus = prometheus.NewDesc(
prometheus.BuildFQName(types.Namespace, Name, "status"),
"Status of windows license",
[]string{"state"},
nil,
)
return nil
}
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *Collector) Collect(ch chan<- prometheus.Metric) error {
status, err := slc.SLIsWindowsGenuineLocal()
if err != nil {
return err
}
for k, v := range labelMap {
val := 0.0
if status == k {
val = 1.0
}
ch <- prometheus.MustNewConstMetric(c.licenseStatus, prometheus.GaugeValue, val, v)
}
return nil
}