/
register.go
53 lines (45 loc) · 1.71 KB
/
register.go
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// Copyright 2022 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package usermanager
import (
"reflect"
"github.com/juju/errors"
"github.com/juju/names/v5"
"github.com/juju/juju/apiserver/authentication"
"github.com/juju/juju/apiserver/common"
apiservererrors "github.com/juju/juju/apiserver/errors"
"github.com/juju/juju/apiserver/facade"
"github.com/juju/juju/core/permission"
)
// Register is called to expose a package of facades onto a given registry.
func Register(registry facade.FacadeRegistry) {
registry.MustRegister("UserManager", 3, func(ctx facade.Context) (facade.Facade, error) {
return newUserManagerAPI(ctx) // Adds ModelUserInfo
}, reflect.TypeOf((*UserManagerAPI)(nil)))
}
// newUserManagerAPI provides the signature required for facade registration.
func newUserManagerAPI(ctx facade.Context) (*UserManagerAPI, error) {
authorizer := ctx.Auth()
if !authorizer.AuthClient() {
return nil, apiservererrors.ErrPerm
}
// Since we know this is a user tag (because AuthClient is true),
// we just do the type assertion to the UserTag.
apiUser, _ := authorizer.GetAuthTag().(names.UserTag)
// Pretty much all of the user manager methods have special casing for admin
// users, so look once when we start and remember if the user is an admin.
st := ctx.State()
err := authorizer.HasPermission(permission.SuperuserAccess, st.ControllerTag())
if err != nil && !errors.Is(err, authentication.ErrorEntityMissingPermission) {
return nil, errors.Trace(err)
}
isAdmin := err == nil
return &UserManagerAPI{
state: st,
pool: ctx.StatePool(),
authorizer: authorizer,
check: common.NewBlockChecker(st),
apiUser: apiUser,
isAdmin: isAdmin,
}, nil
}