worker/checks/crkn/rkn_init.go

package crkn

import (
	"errors"
	"time"

	"rocketgit.ru/rsmon/worker/app/models"
)

// Perform checks if a domain or IP is in the RKN registry
func Perform(m *models.Monitor) *Result {
	result := &Result{}
	start := time.Now()

	blocked, err := models.IsRknDomainBlocked(m.Host)
	if err != nil {
		failResult(err, result, start)
		return result
	}
	if blocked {
		testResult(true, result, "Domain is contained in RKN registry", start)
		return result
	}

	for _, dnsRecord := range m.DNSRecords {
		if dnsRecord.Kind != "A" && dnsRecord.Kind != "AAAA" {
			continue
		}
		findIP, err := models.IsRknIPBlocked(dnsRecord.Value.Inet.String())
		if err != nil {
			failResult(err, result, start)
			return result
		}
		if findIP {
			testResult(true, result, "IP is contained in RKN registry", start)
			return result
		}
	}

	testResult(false, result, "", start)
	return result
}

func failResult(err error, result *Result, start time.Time) {
	result.State = "FAIL"
	result.Error = err
	result.Duration = time.Since(start)
}

func testResult(find bool, result *Result, msg string, start time.Time) {
	if find {
		result.State = "ERR"
		result.Error = errors.New(msg)
		result.Duration = time.Since(start)
		result.Warnings = append(result.Warnings, "Resource is blocked in Russia according to RKN registry")
	} else {
		result.State = "OK"
		result.Duration = time.Since(start)
		result.Infos = append(result.Infos, "Resource is not in RKN registry")
	}
}