forked from kyma-project/kyma
/
tokens.go
executable file
·47 lines (37 loc) · 1.17 KB
/
tokens.go
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package tokens
import (
"crypto/rand"
"encoding/base64"
"github.com/kyma-project/kyma/components/connector-service/internal/apperrors"
"github.com/kyma-project/kyma/components/connector-service/internal/tokens/tokencache"
)
type TokenGenerator interface {
NewToken(re string) (string, apperrors.AppError)
}
type tokenGenerator struct {
tokenLength int
tokenCache tokencache.TokenCache
}
func NewTokenGenerator(tokenLength int, tokenCache tokencache.TokenCache) TokenGenerator {
return &tokenGenerator{tokenLength: tokenLength, tokenCache: tokenCache}
}
func (tg *tokenGenerator) NewToken(re string) (string, apperrors.AppError) {
token, err := generateRandomString(tg.tokenLength)
if err != nil {
return "", err
}
tg.tokenCache.Put(re, token)
return token, nil
}
func generateRandomBytes(number int) ([]byte, apperrors.AppError) {
bytes := make([]byte, number)
_, err := rand.Read(bytes)
if err != nil {
return nil, apperrors.Internal("Failed to generate random bytes: %s", err)
}
return bytes, nil
}
func generateRandomString(length int) (string, apperrors.AppError) {
bytes, err := generateRandomBytes(length)
return base64.URLEncoding.EncodeToString(bytes), err
}