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jti.go
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jti.go
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// Copyright 2015-present, Cyrill @ Schumacher.fm and the CoreStore contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package jwt
import (
"github.com/corestoreio/errors"
"github.com/corestoreio/pkg/util/conv"
"github.com/corestoreio/pkg/util/csjwt"
"github.com/teris-io/shortid"
)
// IDGenerator represents the interface to generate a new UUID aka JWT ID.
type IDGenerator interface {
NewID() (string, error)
}
// jti type to generate a JTI for a token, a unique ID
type jti struct{}
func (j jti) NewID() (string, error) {
return shortid.Generate()
}
// extractJTI returns the token ID
func extractJTI(token csjwt.Token) ([]byte, error) {
rawkid, err := token.Claims.Get(claimKeyID)
if err != nil {
return nil, errors.Wrapf(errEmptyKID, "[jwt] extractJTI token.Claims.Get.KID: %s", err)
}
kid, err := conv.ToByteE(rawkid)
if err != nil {
return nil, errors.Wrap(errEmptyKID, "[jwt] tokenJTI conv.ToByteE")
}
if len(kid) == 0 {
return nil, errors.Wrap(errEmptyKID, "[jwt] extractJTI KID len")
}
return kid, nil
}