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header.go
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/
header.go
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// Copyright © 2017 Aeneas Rekkas <aeneas+oss@aeneas.io>
//
// 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/dgrijalva/jwt-go"
// Headers is the jwt headers
type Headers struct {
Extra map[string]interface{}
}
// ToMap will transform the headers to a map structure
func (h *Headers) ToMap() map[string]interface{} {
var filter = map[string]bool{"alg": true, "typ": true}
var extra = map[string]interface{}{}
// filter known values from extra.
for k, v := range h.Extra {
if _, ok := filter[k]; !ok {
extra[k] = v
}
}
return extra
}
// Add will add a key-value pair to the extra field
func (h *Headers) Add(key string, value interface{}) {
if h.Extra == nil {
h.Extra = make(map[string]interface{})
}
h.Extra[key] = value
}
// Get will get a value from the extra field based on a given key
func (h *Headers) Get(key string) interface{} {
return h.Extra[key]
}
// ToMapClaims will return a jwt-go MapClaims representaion
func (h Headers) ToMapClaims() jwt.MapClaims {
return h.ToMap()
}