mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 17:57:51 +00:00
a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
97 lines
2.3 KiB
Go
97 lines
2.3 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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recordNum++
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if record[0] == "" {
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glog.Warningf("empty token has been found in token file '%s', record number '%d'", path, recordNum)
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continue
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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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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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