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authenticator.go
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authenticator.go
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package session
import (
"errors"
"net/http"
"github.com/GoogleCloudPlatform/kubernetes/pkg/auth/user"
)
const UserNameKey = "user.name"
const UserUIDKey = "user.uid"
type Authenticator struct {
store Store
name string
}
func NewAuthenticator(store Store, name string) *Authenticator {
return &Authenticator{
store: store,
name: name,
}
}
func (a *Authenticator) AuthenticateRequest(req *http.Request) (user.Info, bool, error) {
session, err := a.store.Get(req, a.name)
if err != nil {
return nil, false, err
}
nameObj, ok := session.Values()[UserNameKey]
if !ok {
return nil, false, nil
}
name, ok := nameObj.(string)
if !ok {
return nil, false, errors.New("user.name on session is not a string")
}
if name == "" {
return nil, false, nil
}
uidObj, ok := session.Values()[UserUIDKey]
if !ok {
return nil, false, nil
}
uid, ok := uidObj.(string)
if !ok {
return nil, false, errors.New("user.uid on session is not a string")
}
// Tolerate empty string UIDs in the session
return &user.DefaultInfo{
Name: name,
UID: uid,
}, true, nil
}
func (a *Authenticator) AuthenticationSucceeded(user user.Info, state string, w http.ResponseWriter, req *http.Request) (bool, error) {
session, err := a.store.Get(req, a.name)
if err != nil {
return false, err
}
values := session.Values()
values[UserNameKey] = user.GetName()
values[UserUIDKey] = user.GetUID()
// TODO: should we save groups, scope, and extra in the session as well?
return false, a.store.Save(w, req)
}
func (a *Authenticator) InvalidateAuthentication(w http.ResponseWriter, req *http.Request) error {
session, err := a.store.Get(req, a.name)
if err != nil {
return err
}
session.Values()[UserNameKey] = ""
session.Values()[UserUIDKey] = ""
return a.store.Save(w, req)
}