owncast/utils/accessTokens.go

38 lines
1 KiB
Go

package utils
import (
"crypto/rand"
"encoding/base64"
)
const tokenLength = 32
// GenerateAccessToken will generate and return an access token.
func GenerateAccessToken() (string, error) {
return generateRandomString(tokenLength)
}
// generateRandomBytes returns securely generated random bytes.
// It will return an error if the system's secure random
// number generator fails to function correctly, in which
// case the caller should not continue.
func generateRandomBytes(n int) ([]byte, error) {
b := make([]byte, n)
_, err := rand.Read(b)
// Note that err == nil only if we read len(b) bytes.
if err != nil {
return nil, err
}
return b, nil
}
// generateRandomString returns a URL-safe, base64 encoded
// securely generated random string.
// It will return an error if the system's secure random
// number generator fails to function correctly, in which
// case the caller should not continue.
func generateRandomString(n int) (string, error) {
b, err := generateRandomBytes(n)
return base64.URLEncoding.EncodeToString(b), err
}