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token.go
43 lines (38 loc) · 950 Bytes
/
token.go
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package auth
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"github.com/dgrijalva/jwt-go"
"github.com/palourde/logger"
)
var (
keyPEM []byte
pubKeyPEM []byte
)
// GetToken returns a string that contain the token
func GetToken(role Role) (string, error) {
t := jwt.New(jwt.GetSigningMethod("RS256"))
t.Claims["Role"] = role
tokenString, err := t.SignedString(keyPEM)
return tokenString, err
}
func initToken() {
keyPair, err := rsa.GenerateKey(rand.Reader, 1024)
if err != nil {
logger.Fatalf("Could not generate the private key: %s", err)
}
keyPEM = pem.EncodeToMemory(&pem.Block{
Type: "RSA PRIVATE KEY",
Bytes: x509.MarshalPKCS1PrivateKey(keyPair),
})
pubKeyANS1, err := x509.MarshalPKIXPublicKey(&keyPair.PublicKey)
if err != nil {
logger.Fatalf("Could not generate the public key: %s", err)
}
pubKeyPEM = pem.EncodeToMemory(&pem.Block{
Type: "RSA PUBLIC KEY",
Bytes: pubKeyANS1,
})
}