gin/scripts/certs/main.go

77 lines
2.2 KiB
Go

package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"log"
"math/big"
"net"
"os"
"path/filepath"
"time"
)
func main() {
certDir := "testdata/certificate"
if err := os.MkdirAll(certDir, 0755); err != nil {
log.Fatalf("Failed to create directory %s: %v", certDir, err)
}
template := &x509.Certificate{
SerialNumber: big.NewInt(1),
Subject: pkix.Name{
Organization: []string{"Gin Test"},
CommonName: "localhost",
},
NotBefore: time.Now(),
NotAfter: time.Now().Add(365 * 24 * time.Hour), // 1 year validity
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
DNSNames: []string{"localhost"},
IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1), net.IPv6loopback},
}
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
log.Fatalf("Failed to generate private key: %v", err)
}
derBytes, err := x509.CreateCertificate(rand.Reader, template, template, &privateKey.PublicKey, privateKey)
if err != nil {
log.Fatalf("Failed to create certificate: %v", err)
}
certPath := filepath.Join(certDir, "cert.pem")
certOut, err := os.Create(certPath)
if err != nil {
log.Fatalf("Failed to open %s for writing: %v", certPath, err)
}
if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
log.Fatalf("Failed to write data to %s: %v", certPath, err)
}
if err := certOut.Close(); err != nil {
log.Fatalf("Error closing %s: %v", certPath, err)
}
log.Printf("Wrote %s\n", certPath)
keyPath := filepath.Join(certDir, "key.pem")
keyOut, err := os.OpenFile(keyPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
log.Fatalf("Failed to open %s for writing: %v", keyPath, err)
}
privBytes := x509.MarshalPKCS1PrivateKey(privateKey)
if err := pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: privBytes}); err != nil {
log.Fatalf("Failed to write data to %s: %v", keyPath, err)
}
if err := keyOut.Close(); err != nil {
log.Fatalf("Error closing %s: %v", keyPath, err)
}
log.Printf("Wrote %s\n", keyPath)
}