64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
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/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package bearertoken
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import (
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"errors"
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"net/http"
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"strings"
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"k8s.io/apiserver/pkg/authentication/authenticator"
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"k8s.io/apiserver/pkg/authentication/user"
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)
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type Authenticator struct {
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auth authenticator.Token
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}
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func New(auth authenticator.Token) *Authenticator {
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return &Authenticator{auth}
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}
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var invalidToken = errors.New("invalid bearer token")
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func (a *Authenticator) AuthenticateRequest(req *http.Request) (user.Info, bool, error) {
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auth := strings.TrimSpace(req.Header.Get("Authorization"))
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if auth == "" {
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return nil, false, nil
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}
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parts := strings.Split(auth, " ")
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if len(parts) < 2 || strings.ToLower(parts[0]) != "bearer" {
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return nil, false, nil
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}
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token := parts[1]
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// Empty bearer tokens aren't valid
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if len(token) == 0 {
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return nil, false, nil
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}
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user, ok, err := a.auth.AuthenticateToken(token)
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// If the token authenticator didn't error, provide a default error
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if !ok && err == nil {
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err = invalidToken
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}
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return user, ok, err
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}
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