bf51655a7b
Signed-off-by: Jacek J. Łakis <jacek.lakis@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
/*
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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 tokenfile
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import (
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"encoding/csv"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/golang/glog"
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"k8s.io/apiserver/pkg/authentication/user"
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)
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type TokenAuthenticator struct {
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tokens map[string]*user.DefaultInfo
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}
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// New returns a TokenAuthenticator for a single token
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func New(tokens map[string]*user.DefaultInfo) *TokenAuthenticator {
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return &TokenAuthenticator{
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tokens: tokens,
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}
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}
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// NewCSV returns a TokenAuthenticator, populated from a CSV file.
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// The CSV file must contain records in the format "token,username,useruid"
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func NewCSV(path string) (*TokenAuthenticator, error) {
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file, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer file.Close()
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recordNum := 0
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tokens := make(map[string]*user.DefaultInfo)
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reader := csv.NewReader(file)
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reader.FieldsPerRecord = -1
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for {
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record, err := reader.Read()
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if err == io.EOF {
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break
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}
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if err != nil {
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return nil, err
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}
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if len(record) < 3 {
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return nil, fmt.Errorf("token file '%s' must have at least 3 columns (token, user name, user uid), found %d", path, len(record))
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}
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obj := &user.DefaultInfo{
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Name: record[1],
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UID: record[2],
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}
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recordNum++
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if _, exist := tokens[record[0]]; exist {
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glog.Warningf("duplicate token has been found in token file '%s', record number '%d'", path, recordNum)
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}
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tokens[record[0]] = obj
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if len(record) >= 4 {
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obj.Groups = strings.Split(record[3], ",")
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}
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}
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return &TokenAuthenticator{
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tokens: tokens,
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}, nil
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}
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func (a *TokenAuthenticator) AuthenticateToken(value string) (user.Info, bool, error) {
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user, ok := a.tokens[value]
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if !ok {
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return nil, false, nil
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}
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return user, true, nil
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}
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