kubernetes/pkg/auth/authenticator/tokenfile/tokenfile.go
Clayton Coleman c8ef4b8230 Add simple Bearer authenticator filter for Kube
* Default file based implementation
* Define some simple interfaces
* Add -token_auth_file to apiserver that will start the apiserver
  with a request filter for tokens
2014-10-07 13:25:12 -04:00

71 lines
1.6 KiB
Go

/*
Copyright 2014 Google Inc. All rights reserved.
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 tokenfile
import (
"encoding/csv"
"fmt"
"io"
"os"
"github.com/GoogleCloudPlatform/kubernetes/pkg/auth/user"
)
type TokenAuthenticator struct {
tokens map[string]*user.DefaultInfo
}
func New(path string) (*TokenAuthenticator, error) {
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer file.Close()
tokens := make(map[string]*user.DefaultInfo)
reader := csv.NewReader(file)
for {
record, err := reader.Read()
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
if len(record) < 3 {
return nil, fmt.Errorf("token file '%s' must have at least 3 columns (token, user name, user uid), found %d", path, len(record))
}
obj := &user.DefaultInfo{
Name: record[1],
UID: record[2],
}
tokens[record[0]] = obj
}
return &TokenAuthenticator{
tokens: tokens,
}, nil
}
func (a *TokenAuthenticator) AuthenticateToken(value string) (user.Info, bool, error) {
user, ok := a.tokens[value]
if !ok {
return nil, false, nil
}
return user, true, nil
}