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rbac.go
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rbac.go
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// Copyright Project Harbor Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rbac
import (
"context"
"sync"
"github.com/casbin/casbin"
"github.com/goharbor/harbor/src/pkg/permission/evaluator"
"github.com/goharbor/harbor/src/pkg/permission/types"
)
var _ evaluator.Evaluator = &Evaluator{}
// Evaluator the permission evaluator for rbac user
type Evaluator struct {
rbacUser types.RBACUser
enforcer *casbin.Enforcer
once sync.Once
}
// HasPermission returns true when the rbac user has action permission for the resource
func (e *Evaluator) HasPermission(_ context.Context, resource types.Resource, action types.Action) bool {
e.once.Do(func() {
e.enforcer = makeEnforcer(e.rbacUser)
})
return e.enforcer.Enforce(e.rbacUser.GetUserName(), resource.String(), action.String())
}
// New returns evaluator.Evaluator for the RBACUser
func New(rbacUser types.RBACUser) *Evaluator {
return &Evaluator{
rbacUser: rbacUser,
}
}