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lookup.go
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lookup.go
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package identitymapper
import (
"fmt"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
kuser "k8s.io/apiserver/pkg/authentication/user"
authapi "github.com/openshift/origin/pkg/auth/api"
userclient "github.com/openshift/origin/pkg/user/generated/internalclientset/typed/user/internalversion"
)
var _ = authapi.UserIdentityMapper(&lookupIdentityMapper{})
// lookupIdentityMapper does not provision a new identity or user, it only allows identities already associated with users
type lookupIdentityMapper struct {
mappings userclient.UserIdentityMappingInterface
users userclient.UserResourceInterface
}
// UserFor returns info about the user for whom identity info has been provided
func (p *lookupIdentityMapper) UserFor(info authapi.UserIdentityInfo) (kuser.Info, error) {
mapping, err := p.mappings.Get(info.GetIdentityName(), metav1.GetOptions{})
if err != nil {
return nil, NewLookupError(info, err)
}
u, err := p.users.Get(mapping.User.Name, metav1.GetOptions{})
if err != nil {
return nil, NewLookupError(info, err)
}
return &kuser.DefaultInfo{
Name: u.Name,
UID: string(u.UID),
Groups: u.Groups,
}, nil
}
type lookupError struct {
Identity authapi.UserIdentityInfo
CausedBy error
}
func IsLookupError(err error) bool {
_, ok := err.(lookupError)
return ok
}
func NewLookupError(info authapi.UserIdentityInfo, err error) error {
return lookupError{Identity: info, CausedBy: err}
}
func (c lookupError) Error() string {
return fmt.Sprintf("lookup of user for %q failed: %v", c.Identity.GetIdentityName(), c.CausedBy)
}