// Authorizer implements authorizer.Authorize
func (ka *keystoneAuthorizer) Authorize(a authorizer.Attributes) (string, error) {
var (
tenantName string
ns *api.Namespace
err error
)
if a.GetNamespace() != "" {
ns, err = ka.kubeClient.Namespaces().Get(a.GetNamespace())
if err != nil {
return "", err
}
tenantName = ns.Tenant
} else {
if a.GetTenant() != "" {
te, err := ka.kubeClient.Tenants().Get(a.GetTenant())
if err != nil {
return "", err
}
tenantName = te.Name
}
}
if authorizer.IsWhiteListedUser(a.GetUserName()) {
if a.GetUserName() != api.UserAdmin {
return tenantName, nil
} else {
return api.TenantDefault, nil
}
} else {
if !a.IsReadOnly() && a.GetResource() == "tenants" {
return "", errors.New("only admin can write tenant")
}
}
authConfig := &authConfig{
AuthUrl: ka.authUrl,
Username: a.GetUserName(),
Password: a.GetPassword(),
}
osClient, err := newOpenstackClient(authConfig)
if err != nil {
glog.Errorf("%v", err)
return "", err
}
tenant, err := osClient.getTenant()
if err != nil {
glog.Errorf("%v", err)
return "", err
}
if tenantName == "" || tenantName == tenant.Name {
return tenant.Name, nil
}
return "", errors.New("Keystone authorization failed")
}