firehol/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package whoisquery

import (
    _ "embed"
    "errors"
    "time"

    "github.com/netdata/netdata/go/plugins/plugin/go.d/agent/module"
    "github.com/netdata/netdata/go/plugins/plugin/go.d/pkg/confopt"
)

//go:embed "config_schema.json"
var configSchema string

func init() {
    module.Register("whoisquery", module.Creator{
        JobConfigSchema: configSchema,
        Defaults: module.Defaults{
            UpdateEvery: 60,
        },
        Create: func() module.Module { return New() },
        Config: func() any { return &Config{} },
    })
}

func New() *WhoisQuery {
    return &WhoisQuery{
        Config: Config{
            Timeout:       confopt.Duration(time.Second * 5),
            DaysUntilWarn: 30,
            DaysUntilCrit: 15,
        },
    }
}

type Config struct {
    UpdateEvery   int              `yaml:"update_every,omitempty" json:"update_every"`
    Source        string           `yaml:"source" json:"source"`
    Timeout       confopt.Duration `yaml:"timeout,omitempty" json:"timeout"`
    DaysUntilWarn int64            `yaml:"days_until_expiration_warning,omitempty" json:"days_until_expiration_warning"`
    DaysUntilCrit int64            `yaml:"days_until_expiration_critical,omitempty" json:"days_until_expiration_critical"`
}

type WhoisQuery struct {
    module.Base
    Config `yaml:",inline" json:""`

    charts *module.Charts

    prov provider
}

func (w *WhoisQuery) Configuration() any {
    return w.Config
}

func (w *WhoisQuery) Init() error {
    if err := w.validateConfig(); err != nil {
        w.Errorf("config validation: %v", err)
        return err
    }

    prov, err := w.initProvider()
    if err != nil {
        w.Errorf("init whois provider: %v", err)
        return err
    }
    w.prov = prov

    w.charts = w.initCharts()

    return nil
}

func (w *WhoisQuery) Check() error {
    mx, err := w.collect()
    if err != nil {
        w.Error(err)
        return err
    }
    if len(mx) == 0 {
        return errors.New("no metrics collected")
    }
    return nil
}

func (w *WhoisQuery) Charts() *module.Charts {
    return w.charts
}

func (w *WhoisQuery) Collect() map[string]int64 {
    mx, err := w.collect()
    if err != nil {
        w.Error(err)
    }

    if len(mx) == 0 {
        return nil
    }
    return mx
}

func (w *WhoisQuery) Cleanup() {}