mediamtx/internal/conf/credential.go

42 lines
979 B
Go

package conf
import (
"encoding/json"
"fmt"
"regexp"
"strings"
)
var reCredential = regexp.MustCompile(`^[a-zA-Z0-9!\$\(\)\*\+\.;<=>\[\]\^_\-\{\}]+$`)
const credentialSupportedChars = "A-Z,0-9,!,$,(,),*,+,.,;,<,=,>,[,],^,_,-,{,}"
// Credential is a parameter that is used as username or password.
type Credential string
// MarshalJSON marshals a Credential into JSON.
func (d Credential) MarshalJSON() ([]byte, error) {
return json.Marshal(string(d))
}
// UnmarshalJSON unmarshals a Credential from JSON.
func (d *Credential) UnmarshalJSON(b []byte) error {
var in string
if err := json.Unmarshal(b, &in); err != nil {
return err
}
if in != "" &&
!strings.HasPrefix(in, "sha256:") &&
!reCredential.MatchString(in) {
return fmt.Errorf("contains unsupported characters (supported are %s)", credentialSupportedChars)
}
*d = Credential(in)
return nil
}
func (d *Credential) unmarshalEnv(s string) error {
return d.UnmarshalJSON([]byte(`"` + s + `"`))
}