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access.go
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access.go
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/*
Copyright 2016 Gravitational, Inc.
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 local
import (
"context"
"sort"
"github.com/gravitational/teleport/lib/backend"
"github.com/gravitational/teleport/lib/services"
"github.com/gravitational/trace"
)
// AccessService manages roles
type AccessService struct {
backend.Backend
}
// NewAccessService returns new access service instance
func NewAccessService(backend backend.Backend) *AccessService {
return &AccessService{Backend: backend}
}
// DeleteAllRoles deletes all roles
func (s *AccessService) DeleteAllRoles() error {
return s.DeleteRange(context.TODO(), backend.Key(rolesPrefix), backend.RangeEnd(backend.Key(rolesPrefix)))
}
// GetRoles returns a list of roles registered with the local auth server
func (s *AccessService) GetRoles() ([]services.Role, error) {
result, err := s.GetRange(context.TODO(), backend.Key(rolesPrefix), backend.RangeEnd(backend.Key(rolesPrefix)), backend.NoLimit)
if err != nil {
return nil, trace.Wrap(err)
}
out := make([]services.Role, 0, len(result.Items))
for _, item := range result.Items {
role, err := services.GetRoleMarshaler().UnmarshalRole(item.Value,
services.WithResourceID(item.ID), services.WithExpires(item.Expires))
if err != nil {
return nil, trace.Wrap(err)
}
out = append(out, role)
}
sort.Sort(services.SortedRoles(out))
return out, nil
}
// CreateRole creates a role on the backend.
func (s *AccessService) CreateRole(role services.Role) error {
value, err := services.GetRoleMarshaler().MarshalRole(role)
if err != nil {
return trace.Wrap(err)
}
item := backend.Item{
Key: backend.Key(rolesPrefix, role.GetName(), paramsPrefix),
Value: value,
Expires: role.Expiry(),
}
_, err = s.Create(context.TODO(), item)
if err != nil {
return trace.Wrap(err)
}
return nil
}
// UpsertRole updates parameters about role
func (s *AccessService) UpsertRole(role services.Role) error {
value, err := services.GetRoleMarshaler().MarshalRole(role)
if err != nil {
return trace.Wrap(err)
}
item := backend.Item{
Key: backend.Key(rolesPrefix, role.GetName(), paramsPrefix),
Value: value,
Expires: role.Expiry(),
ID: role.GetResourceID(),
}
_, err = s.Put(context.TODO(), item)
if err != nil {
return trace.Wrap(err)
}
return nil
}
// GetRole returns a role by name
func (s *AccessService) GetRole(name string) (services.Role, error) {
if name == "" {
return nil, trace.BadParameter("missing role name")
}
item, err := s.Get(context.TODO(), backend.Key(rolesPrefix, name, paramsPrefix))
if err != nil {
if trace.IsNotFound(err) {
return nil, trace.NotFound("role %v is not found", name)
}
return nil, trace.Wrap(err)
}
return services.GetRoleMarshaler().UnmarshalRole(item.Value,
services.WithResourceID(item.ID), services.WithExpires(item.Expires))
}
// DeleteRole deletes a role from the backend
func (s *AccessService) DeleteRole(name string) error {
if name == "" {
return trace.BadParameter("missing role name")
}
err := s.Delete(context.TODO(), backend.Key(rolesPrefix, name, paramsPrefix))
if err != nil {
if trace.IsNotFound(err) {
return trace.NotFound("role %q is not found", name)
}
}
return trace.Wrap(err)
}
const (
rolesPrefix = "roles"
paramsPrefix = "params"
)