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claims.go
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claims.go
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package jwtauth
import (
"encoding/json"
"fmt"
"strconv"
"github.com/golang-jwt/jwt/v4"
)
// MapClaims represents a jwt.MapClaims
type MapClaims jwt.MapClaims
// Exp returns value of exp
func (m MapClaims) Exp() (int64, error) {
return m.Int64("exp")
}
// OrigIat returns value of orig_iat
func (m MapClaims) OrigIat() (int64, error) {
return m.Int64("orig_iat")
}
// Identity returns value of identity
func (m MapClaims) Identity() (int64, error) {
return m.Int64("identity")
}
// Int64 try to convert to int64 by key
func (m MapClaims) Int64(key string) (int64, error) {
value := m[key]
if value == nil {
return 0, fmt.Errorf("invalid key '%v'", key)
}
switch value.(type) {
case json.Number:
return value.(json.Number).Int64()
case float64:
return int64(value.(float64)), nil
case string:
return strconv.ParseInt(value.(string), 10, 0)
default:
return 0, fmt.Errorf("invalid value '%v' type '%T'", value, value)
}
}
// String try to convert to string by key
func (m MapClaims) String(key string) string {
value := m[key]
if value == nil {
return ""
}
switch value.(type) {
case json.Number:
return value.(json.Number).String()
case float64:
return strconv.FormatFloat(value.(float64), 'g', -1, 64)
case string:
return value.(string)
default:
fmt.Errorf("maptoclaims key to string invalid value '%v' type '%T' key %v", value, value, key)
return ""
}
}
// Int try to convert to int by key
func (m MapClaims) Int(key string) (int, error) {
value := m[key]
if value == nil {
return 0, fmt.Errorf("invalid key '%v'", key)
}
switch value.(type) {
case json.Number:
intVal, err := value.(json.Number).Int64()
if err != nil {
return 0, err
}
return int(intVal), nil
case float64:
return int(value.(float64)), nil
case string:
intVal, err := strconv.ParseInt(value.(string), 10, 0)
if err != nil {
return 0, err
}
return int(intVal), nil
default:
return 0, fmt.Errorf("invalid value '%v' type '%T'", value, value)
}
}
// UInt64 try to convert to uint64 by key
func (m MapClaims) UInt64(key string) (uint64, error) {
value := m[key]
if value == nil {
return 0, fmt.Errorf("invalid key '%v'", key)
}
switch value.(type) {
case json.Number:
intVal, err := value.(json.Number).Int64()
if err != nil {
return 0, err
}
return uint64(intVal), nil
case float64:
return uint64(value.(float64)), nil
case string:
intVal, err := strconv.ParseInt(value.(string), 10, 0)
if err != nil {
return 0, err
}
return uint64(intVal), nil
default:
return 0, fmt.Errorf("invalid value '%v' type '%T'", value, value)
}
}