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security_requests.go
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/
security_requests.go
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// Copyright 2015 CoreOS, 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 security
import (
"encoding/json"
"log"
"path"
"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
etcderr "github.com/coreos/etcd/error"
"github.com/coreos/etcd/etcdserver"
"github.com/coreos/etcd/etcdserver/etcdserverpb"
)
func (s *Store) ensureSecurityDirectories() error {
for _, res := range []string{StorePermsPrefix, StorePermsPrefix + "/users/", StorePermsPrefix + "/roles/"} {
ctx, cancel := context.WithTimeout(context.Background(), s.timeout)
defer cancel()
pe := false
rr := etcdserverpb.Request{
Method: "PUT",
Path: res,
Dir: true,
PrevExist: &pe,
}
_, err := s.server.Do(ctx, rr)
if err != nil {
if e, ok := err.(*etcderr.Error); ok {
if e.ErrorCode == etcderr.EcodeNodeExist {
continue
}
}
log.Println("security: Trying to create security directories in the store; failed:", err)
return err
}
}
return nil
}
func (s *Store) detectSecurity() bool {
if s.server == nil {
return false
}
_, err := s.requestResource("/users/root", false)
if err == nil {
return true
}
return false
}
func (s *Store) requestResource(res string, dir bool) (etcdserver.Response, error) {
ctx, cancel := context.WithTimeout(context.Background(), s.timeout)
defer cancel()
p := path.Join(StorePermsPrefix, res)
rr := etcdserverpb.Request{
Method: "GET",
Path: p,
Dir: dir,
}
return s.server.Do(ctx, rr)
}
func (s *Store) updateResource(res string, value interface{}) (etcdserver.Response, error) {
return s.setResource(res, value, true)
}
func (s *Store) createResource(res string, value interface{}) (etcdserver.Response, error) {
return s.setResource(res, value, false)
}
func (s *Store) setResource(res string, value interface{}, prevexist bool) (etcdserver.Response, error) {
ctx, cancel := context.WithTimeout(context.Background(), s.timeout)
defer cancel()
data, err := json.Marshal(value)
if err != nil {
return etcdserver.Response{}, err
}
p := path.Join(StorePermsPrefix, res)
rr := etcdserverpb.Request{
Method: "PUT",
Path: p,
Val: string(data),
PrevExist: &prevexist,
}
return s.server.Do(ctx, rr)
}
func (s *Store) deleteResource(res string) (etcdserver.Response, error) {
ctx, cancel := context.WithTimeout(context.Background(), s.timeout)
defer cancel()
pex := true
p := path.Join(StorePermsPrefix, res)
rr := etcdserverpb.Request{
Method: "DELETE",
Path: p,
PrevExist: &pex,
}
return s.server.Do(ctx, rr)
}