expiration-check/checker/certificates.go
Simon Vieille d2ebea5a31
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2024-07-22 11:36:24 +02:00

47 lines
845 B
Go

package checker
import (
"crypto/tls"
"fmt"
"math"
"strings"
"time"
)
func FormatDomain(domain string) string {
elements := strings.Split(domain, ":")
if len(elements) == 1 {
return fmt.Sprintf("%s:443", elements[0])
}
return domain
}
func CheckCertificate(domain string) Domain {
now := time.Now()
conn, err := tls.Dial("tcp", FormatDomain(domain), nil)
if err == nil {
date := conn.ConnectionState().PeerCertificates[0].NotAfter
daysLeft := date.Sub(now).Hours() / 24
return Domain{
Name: domain,
DaysLeft: math.Floor(daysLeft),
Date: date.Format(time.DateTime),
}
}
return Domain{Name: domain, Failed: true}
}
func CheckCertificates(domains []string) []Domain {
values := []Domain{}
for _, domain := range domains {
values = append(values, CheckCertificate(domain))
}
return values
}