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user.go
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user.go
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package auth
import (
"fmt"
"strings"
"github.com/rancher/types/apis/core/v1"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/types/config"
v12 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/cache"
)
type userLifecycle struct {
prtb v3.ProjectRoleTemplateBindingInterface
crtb v3.ClusterRoleTemplateBindingInterface
grb v3.GlobalRoleBindingInterface
users v3.UserInterface
tokens v3.TokenInterface
namespaces v1.NamespaceInterface
namespaceLister v1.NamespaceLister
prtbLister v3.ProjectRoleTemplateBindingLister
crtbLister v3.ClusterRoleTemplateBindingLister
grbLister v3.GlobalRoleBindingLister
prtbIndexer cache.Indexer
crtbIndexer cache.Indexer
grbIndexer cache.Indexer
tokenIndexer cache.Indexer
}
const (
crtbByUserRefKey = "auth.management.cattle.io/crtb-by-user-ref"
prtbByUserRefKey = "auth.management.cattle.io/prtb-by-user-ref"
grbByUserRefKey = "auth.management.cattle.io/grb-by-user-ref"
tokenByUserRefKey = "auth.management.cattle.io/token-by-user-ref"
)
func newUserLifecycle(management *config.ManagementContext) *userLifecycle {
lfc := &userLifecycle{
prtb: management.Management.ProjectRoleTemplateBindings(""),
crtb: management.Management.ClusterRoleTemplateBindings(""),
grb: management.Management.GlobalRoleBindings(""),
users: management.Management.Users(""),
tokens: management.Management.Tokens(""),
namespaces: management.Core.Namespaces(""),
prtbLister: management.Management.ProjectRoleTemplateBindings("").Controller().Lister(),
crtbLister: management.Management.ClusterRoleTemplateBindings("").Controller().Lister(),
grbLister: management.Management.GlobalRoleBindings("").Controller().Lister(),
namespaceLister: management.Core.Namespaces("").Controller().Lister(),
}
prtbInformer := management.Management.ProjectRoleTemplateBindings("").Controller().Informer()
prtbInformer.AddIndexers(map[string]cache.IndexFunc{
prtbByUserRefKey: prtbByUserRefFunc,
})
lfc.prtbIndexer = prtbInformer.GetIndexer()
crtbInformer := management.Management.ClusterRoleTemplateBindings("").Controller().Informer()
crtbInformer.AddIndexers(map[string]cache.IndexFunc{
crtbByUserRefKey: crtbByUserRefFunc,
})
lfc.crtbIndexer = crtbInformer.GetIndexer()
grbInformer := management.Management.GlobalRoleBindings("").Controller().Informer()
grbInformer.AddIndexers(map[string]cache.IndexFunc{
grbByUserRefKey: grbByUserRefFunc,
})
lfc.grbIndexer = grbInformer.GetIndexer()
tokenInformer := management.Management.Tokens("").Controller().Informer()
tokenInformer.AddIndexers(map[string]cache.IndexFunc{
tokenByUserRefKey: tokenByUserRefFunc,
})
lfc.tokenIndexer = tokenInformer.GetIndexer()
return lfc
}
func grbByUserRefFunc(obj interface{}) ([]string, error) {
globalRoleBinding, ok := obj.(*v3.GlobalRoleBinding)
if !ok {
return []string{}, nil
}
return []string{globalRoleBinding.UserName}, nil
}
func prtbByUserRefFunc(obj interface{}) ([]string, error) {
projectRoleBinding, ok := obj.(*v3.ProjectRoleTemplateBinding)
if !ok || projectRoleBinding.UserName == "" {
return []string{}, nil
}
return []string{projectRoleBinding.UserName}, nil
}
func crtbByUserRefFunc(obj interface{}) ([]string, error) {
clusterRoleBinding, ok := obj.(*v3.ClusterRoleTemplateBinding)
if !ok || clusterRoleBinding.UserName == "" {
return []string{}, nil
}
return []string{clusterRoleBinding.UserName}, nil
}
func tokenByUserRefFunc(obj interface{}) ([]string, error) {
token, ok := obj.(*v3.Token)
if !ok {
return []string{}, nil
}
return []string{token.UserID}, nil
}
func (l *userLifecycle) Create(user *v3.User) (*v3.User, error) {
var match = false
for _, id := range user.PrincipalIDs {
if strings.HasPrefix(id, "local://") {
match = true
break
}
}
if !match {
user.PrincipalIDs = append(user.PrincipalIDs, "local://"+user.Name)
}
return user, nil
}
func (l *userLifecycle) Updated(user *v3.User) (*v3.User, error) {
return user, nil
}
func (l *userLifecycle) Remove(user *v3.User) (*v3.User, error) {
clusterRoles, err := l.getCRTBByUserName(user.Name)
if err != nil {
return nil, err
}
err = l.deleteAllCRTB(clusterRoles)
if err != nil {
return nil, err
}
projectRoles, err := l.getPRTBByUserName(user.Name)
if err != nil {
return nil, err
}
err = l.deleteAllPRTB(projectRoles)
if err != nil {
return nil, err
}
globalRoles, err := l.getGRBByUserName(user.Name)
if err != nil {
return nil, err
}
err = l.deleteAllGRB(globalRoles)
if err != nil {
return nil, err
}
tokens, err := l.getTokensByUserName(user.Name)
if err != nil {
return nil, err
}
err = l.deleteAllTokens(tokens)
if err != nil {
return nil, err
}
err = l.deleteUserNamespace(user.Name)
if err != nil {
return nil, err
}
return user, nil
}
func (l *userLifecycle) getCRTBByUserName(username string) ([]*v3.ClusterRoleTemplateBinding, error) {
obj, err := l.crtbIndexer.ByIndex(crtbByUserRefKey, username)
if err != nil {
return nil, fmt.Errorf("error getting cluster roles: %v", err)
}
var crtbs []*v3.ClusterRoleTemplateBinding
for _, o := range obj {
crtb, ok := o.(*v3.ClusterRoleTemplateBinding)
if !ok {
return nil, fmt.Errorf("error converting obj to cluster role template binding: %v", o)
}
crtbs = append(crtbs, crtb)
}
return crtbs, nil
}
func (l *userLifecycle) getPRTBByUserName(username string) ([]*v3.ProjectRoleTemplateBinding, error) {
objs, err := l.prtbIndexer.ByIndex(prtbByUserRefKey, username)
if err != nil {
return nil, fmt.Errorf("error getting indexed project roles: %v", err)
}
var prtbs []*v3.ProjectRoleTemplateBinding
for _, obj := range objs {
prtb, ok := obj.(*v3.ProjectRoleTemplateBinding)
if !ok {
return nil, fmt.Errorf("could not convert obj to v3.ProjectRoleTemplateBinding")
}
prtbs = append(prtbs, prtb)
}
return prtbs, nil
}
func (l *userLifecycle) getGRBByUserName(username string) ([]*v3.GlobalRoleBinding, error) {
objs, err := l.grbIndexer.ByIndex(grbByUserRefKey, username)
if err != nil {
return nil, fmt.Errorf("error getting indexed global roles: %v", err)
}
var grbs []*v3.GlobalRoleBinding
for _, obj := range objs {
grb, ok := obj.(*v3.GlobalRoleBinding)
if !ok {
return nil, fmt.Errorf("could not convert obj to v3.GlobalRoleBinding")
}
grbs = append(grbs, grb)
}
return grbs, nil
}
func (l *userLifecycle) getTokensByUserName(username string) ([]*v3.Token, error) {
objs, err := l.tokenIndexer.ByIndex(tokenByUserRefKey, username)
if err != nil {
return nil, fmt.Errorf("error getting indexed tokens: %v", err)
}
var tokens []*v3.Token
for _, obj := range objs {
token, ok := obj.(*v3.Token)
if !ok {
return nil, fmt.Errorf("could not convert to *v3.Token: %v", obj)
}
tokens = append(tokens, token)
}
return tokens, nil
}
func (l *userLifecycle) deleteAllCRTB(crtbs []*v3.ClusterRoleTemplateBinding) error {
for _, crtb := range crtbs {
var err error
if crtb.Namespace == "" {
err = l.crtb.Delete(crtb.Name, &metav1.DeleteOptions{})
} else {
err = l.crtb.DeleteNamespaced(crtb.Namespace, crtb.Name, &metav1.DeleteOptions{})
}
if err != nil {
return fmt.Errorf("error deleting cluster role: %v", err)
}
}
return nil
}
func (l *userLifecycle) deleteAllPRTB(prtbs []*v3.ProjectRoleTemplateBinding) error {
for _, prtb := range prtbs {
var err error
if prtb.Namespace == "" {
err = l.prtb.Delete(prtb.Name, &metav1.DeleteOptions{})
} else {
err = l.prtb.DeleteNamespaced(prtb.Namespace, prtb.Name, &metav1.DeleteOptions{})
}
if err != nil {
return fmt.Errorf("error deleting projet role: %v", err)
}
}
return nil
}
func (l *userLifecycle) deleteAllGRB(grbs []*v3.GlobalRoleBinding) error {
for _, grb := range grbs {
var err error
if grb.Namespace == "" {
err = l.grb.Delete(grb.Name, &metav1.DeleteOptions{})
} else {
err = l.grb.DeleteNamespaced(grb.Namespace, grb.Name, &metav1.DeleteOptions{})
}
if err != nil {
return fmt.Errorf("error deleting global role template %v: %v", grb.Name, err)
}
}
return nil
}
func (l *userLifecycle) deleteAllTokens(tokens []*v3.Token) error {
for _, token := range tokens {
err := l.tokens.DeleteNamespaced(token.Namespace, token.Name, &metav1.DeleteOptions{})
if err != nil {
return fmt.Errorf("error deleting token: %v", err)
}
}
return nil
}
func (l *userLifecycle) deleteUserNamespace(username string) error {
namespace, err := l.namespaceLister.Get("", username)
if err != nil {
if errors.IsNotFound(err) {
return nil // nothing to delete
}
return fmt.Errorf("error getting user namespace: %v", err)
}
if namespace.Status.Phase == v12.NamespaceTerminating {
return nil // nothing to do namespace is already deleting
}
err = l.namespaces.Delete(username, &metav1.DeleteOptions{})
if err != nil {
return fmt.Errorf("error deleting user namespace: %v", err)
}
return nil
}