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generator.go
42 lines (34 loc) · 1000 Bytes
/
generator.go
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package onetimetoken
import (
"crypto/rand"
"encoding/base64"
"fmt"
)
// TokenGenerator missing godoc
//
//go:generate mockery --name=TokenGenerator --output=automock --outpkg=automock --case=underscore --disable-version-string
type TokenGenerator interface {
NewToken() (string, error)
}
type tokenGenerator struct {
tokenLength int
}
// NewTokenGenerator missing godoc
func NewTokenGenerator(tokenLength int) TokenGenerator {
return &tokenGenerator{tokenLength: tokenLength}
}
// NewToken missing godoc
func (tg *tokenGenerator) NewToken() (string, error) {
return generateRandomString(tg.tokenLength)
}
func generateRandomBytes(number int) ([]byte, error) {
bytes := make([]byte, number)
if _, err := rand.Read(bytes); err != nil {
return nil, fmt.Errorf("failed to generate random bytes: %s", err)
}
return bytes, nil
}
func generateRandomString(length int) (string, error) {
bytes, err := generateRandomBytes(length)
return base64.URLEncoding.EncodeToString(bytes), err
}