mirror of
https://github.com/kubernetes/client-go.git
synced 2025-09-15 22:58:24 +00:00
5974905c2a
(https://github.com/kubernetes/contrib/tree/master/mungegithub) Directory 1.4 is copied from https://github.com/kubernetes/kubernetes.git, branch release-1.4, last commit is 23b426563780c64ac25df63a2d141247d02aac7a Directory 1.5 is copied from https://github.com/kubernetes/kubernetes.git, branch master, last commit is 9f99f4a55455b40504ab56b71cf067db17f830c1
106 lines
2.8 KiB
Go
106 lines
2.8 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
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 gcp
|
|
|
|
import (
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/golang/glog"
|
|
"golang.org/x/net/context"
|
|
"golang.org/x/oauth2"
|
|
"golang.org/x/oauth2/google"
|
|
"k8s.io/client-go/1.5/rest"
|
|
)
|
|
|
|
func init() {
|
|
if err := rest.RegisterAuthProviderPlugin("gcp", newGCPAuthProvider); err != nil {
|
|
glog.Fatalf("Failed to register gcp auth plugin: %v", err)
|
|
}
|
|
}
|
|
|
|
type gcpAuthProvider struct {
|
|
tokenSource oauth2.TokenSource
|
|
persister rest.AuthProviderConfigPersister
|
|
}
|
|
|
|
func newGCPAuthProvider(_ string, gcpConfig map[string]string, persister rest.AuthProviderConfigPersister) (rest.AuthProvider, error) {
|
|
ts, err := newCachedTokenSource(gcpConfig["access-token"], gcpConfig["expiry"], persister)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &gcpAuthProvider{ts, persister}, nil
|
|
}
|
|
|
|
func (g *gcpAuthProvider) WrapTransport(rt http.RoundTripper) http.RoundTripper {
|
|
return &oauth2.Transport{
|
|
Source: g.tokenSource,
|
|
Base: rt,
|
|
}
|
|
}
|
|
|
|
func (g *gcpAuthProvider) Login() error { return nil }
|
|
|
|
type cachedTokenSource struct {
|
|
source oauth2.TokenSource
|
|
accessToken string
|
|
expiry time.Time
|
|
persister rest.AuthProviderConfigPersister
|
|
}
|
|
|
|
func newCachedTokenSource(accessToken, expiry string, persister rest.AuthProviderConfigPersister) (*cachedTokenSource, error) {
|
|
var expiryTime time.Time
|
|
if parsedTime, err := time.Parse(time.RFC3339Nano, expiry); err == nil {
|
|
expiryTime = parsedTime
|
|
}
|
|
ts, err := google.DefaultTokenSource(context.Background(), "https://www.googleapis.com/auth/cloud-platform")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &cachedTokenSource{
|
|
source: ts,
|
|
accessToken: accessToken,
|
|
expiry: expiryTime,
|
|
persister: persister,
|
|
}, nil
|
|
}
|
|
|
|
func (t *cachedTokenSource) Token() (*oauth2.Token, error) {
|
|
tok := &oauth2.Token{
|
|
AccessToken: t.accessToken,
|
|
TokenType: "Bearer",
|
|
Expiry: t.expiry,
|
|
}
|
|
if tok.Valid() && !tok.Expiry.IsZero() {
|
|
return tok, nil
|
|
}
|
|
tok, err := t.source.Token()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if t.persister != nil {
|
|
cached := map[string]string{
|
|
"access-token": tok.AccessToken,
|
|
"expiry": tok.Expiry.Format(time.RFC3339Nano),
|
|
}
|
|
if err := t.persister.Persist(cached); err != nil {
|
|
glog.V(4).Infof("Failed to persist token: %v", err)
|
|
}
|
|
}
|
|
return tok, nil
|
|
}
|