64 lines
1.8 KiB
Go
64 lines
1.8 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 basicauth
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import (
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"encoding/base64"
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"errors"
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"net/http"
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"strings"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/auth/authenticator"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/auth/user"
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)
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// Authenticator authenticates requests using basic auth
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type Authenticator struct {
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auth authenticator.Password
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}
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// New returns a request authenticator that validates credentials using the provided password authenticator
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func New(auth authenticator.Password) *Authenticator {
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return &Authenticator{auth}
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}
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// AuthenticateRequest authenticates the request using the "Authorization: Basic" header in the request
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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]) != "basic" {
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return nil, false, nil
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}
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payload, err := base64.StdEncoding.DecodeString(parts[1])
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if err != nil {
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return nil, false, err
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}
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pair := strings.SplitN(string(payload), ":", 2)
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if len(pair) != 2 {
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return nil, false, errors.New("malformed basic auth header")
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}
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username := pair[0]
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password := pair[1]
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return a.auth.AuthenticatePassword(username, password)
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}
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