Revision a7a8a47ba0fa613b1ba14b63252efff7aa2db30c authored by Gyu-Ho Lee on 20 January 2017, 21:42:11 UTC, committed by Gyu-Ho Lee on 20 January 2017, 22:21:00 UTC
1 parent 379f7ae
store.go
// Copyright 2016 The etcd 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 auth
import (
"bytes"
"encoding/binary"
"errors"
"fmt"
"sort"
"strings"
"sync"
"github.com/coreos/etcd/auth/authpb"
pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
"github.com/coreos/etcd/mvcc/backend"
"github.com/coreos/pkg/capnslog"
"golang.org/x/crypto/bcrypt"
"golang.org/x/net/context"
)
var (
enableFlagKey = []byte("authEnabled")
authEnabled = []byte{1}
authDisabled = []byte{0}
revisionKey = []byte("authRevision")
authBucketName = []byte("auth")
authUsersBucketName = []byte("authUsers")
authRolesBucketName = []byte("authRoles")
plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "auth")
ErrRootUserNotExist = errors.New("auth: root user does not exist")
ErrRootRoleNotExist = errors.New("auth: root user does not have root role")
ErrUserAlreadyExist = errors.New("auth: user already exists")
ErrUserEmpty = errors.New("auth: user name is empty")
ErrUserNotFound = errors.New("auth: user not found")
ErrRoleAlreadyExist = errors.New("auth: role already exists")
ErrRoleNotFound = errors.New("auth: role not found")
ErrAuthFailed = errors.New("auth: authentication failed, invalid user ID or password")
ErrPermissionDenied = errors.New("auth: permission denied")
ErrRoleNotGranted = errors.New("auth: role is not granted to the user")
ErrPermissionNotGranted = errors.New("auth: permission is not granted to the role")
ErrAuthNotEnabled = errors.New("auth: authentication is not enabled")
ErrAuthOldRevision = errors.New("auth: revision in header is old")
// BcryptCost is the algorithm cost / strength for hashing auth passwords
BcryptCost = bcrypt.DefaultCost
)
const (
rootUser = "root"
rootRole = "root"
revBytesLen = 8
)
type AuthInfo struct {
Username string
Revision uint64
}
type AuthStore interface {
// AuthEnable turns on the authentication feature
AuthEnable() error
// AuthDisable turns off the authentication feature
AuthDisable()
// Authenticate does authentication based on given user name and password
Authenticate(ctx context.Context, username, password string) (*pb.AuthenticateResponse, error)
// Recover recovers the state of auth store from the given backend
Recover(b backend.Backend)
// UserAdd adds a new user
UserAdd(r *pb.AuthUserAddRequest) (*pb.AuthUserAddResponse, error)
// UserDelete deletes a user
UserDelete(r *pb.AuthUserDeleteRequest) (*pb.AuthUserDeleteResponse, error)
// UserChangePassword changes a password of a user
UserChangePassword(r *pb.AuthUserChangePasswordRequest) (*pb.AuthUserChangePasswordResponse, error)
// UserGrantRole grants a role to the user
UserGrantRole(r *pb.AuthUserGrantRoleRequest) (*pb.AuthUserGrantRoleResponse, error)
// UserGet gets the detailed information of a users
UserGet(r *pb.AuthUserGetRequest) (*pb.AuthUserGetResponse, error)
// UserRevokeRole revokes a role of a user
UserRevokeRole(r *pb.AuthUserRevokeRoleRequest) (*pb.AuthUserRevokeRoleResponse, error)
// RoleAdd adds a new role
RoleAdd(r *pb.AuthRoleAddRequest) (*pb.AuthRoleAddResponse, error)
// RoleGrantPermission grants a permission to a role
RoleGrantPermission(r *pb.AuthRoleGrantPermissionRequest) (*pb.AuthRoleGrantPermissionResponse, error)
// RoleGet gets the detailed information of a role
RoleGet(r *pb.AuthRoleGetRequest) (*pb.AuthRoleGetResponse, error)
// RoleRevokePermission gets the detailed information of a role
RoleRevokePermission(r *pb.AuthRoleRevokePermissionRequest) (*pb.AuthRoleRevokePermissionResponse, error)
// RoleDelete gets the detailed information of a role
RoleDelete(r *pb.AuthRoleDeleteRequest) (*pb.AuthRoleDeleteResponse, error)
// UserList gets a list of all users
UserList(r *pb.AuthUserListRequest) (*pb.AuthUserListResponse, error)
// RoleList gets a list of all roles
RoleList(r *pb.AuthRoleListRequest) (*pb.AuthRoleListResponse, error)
// AuthInfoFromToken gets a username from the given Token and current revision number
// (The revision number is used for preventing the TOCTOU problem)
AuthInfoFromToken(token string) (*AuthInfo, bool)
// IsPutPermitted checks put permission of the user
IsPutPermitted(authInfo *AuthInfo, key []byte) error
// IsRangePermitted checks range permission of the user
IsRangePermitted(authInfo *AuthInfo, key, rangeEnd []byte) error
// IsDeleteRangePermitted checks delete-range permission of the user
IsDeleteRangePermitted(authInfo *AuthInfo, key, rangeEnd []byte) error
// IsAdminPermitted checks admin permission of the user
IsAdminPermitted(authInfo *AuthInfo) error
// GenSimpleToken produces a simple random string
GenSimpleToken() (string, error)
// Revision gets current revision of authStore
Revision() uint64
// CheckPassword checks a given pair of username and password is correct
CheckPassword(username, password string) (uint64, error)
// Close does cleanup of AuthStore
Close() error
}
type authStore struct {
be backend.Backend
enabled bool
enabledMu sync.RWMutex
rangePermCache map[string]*unifiedRangePermissions // username -> unifiedRangePermissions
simpleTokensMu sync.RWMutex
simpleTokens map[string]string // token -> username
simpleTokenKeeper *simpleTokenTTLKeeper
revision uint64
}
func (as *authStore) AuthEnable() error {
as.enabledMu.Lock()
defer as.enabledMu.Unlock()
if as.enabled {
plog.Noticef("Authentication already enabled")
return nil
}
b := as.be
tx := b.BatchTx()
tx.Lock()
defer func() {
tx.Unlock()
b.ForceCommit()
}()
u := getUser(tx, rootUser)
if u == nil {
return ErrRootUserNotExist
}
if !hasRootRole(u) {
return ErrRootRoleNotExist
}
tx.UnsafePut(authBucketName, enableFlagKey, authEnabled)
as.enabled = true
tokenDeleteFunc := func(t string) {
as.simpleTokensMu.Lock()
defer as.simpleTokensMu.Unlock()
if username, ok := as.simpleTokens[t]; ok {
plog.Infof("deleting token %s for user %s", t, username)
delete(as.simpleTokens, t)
}
}
as.simpleTokenKeeper = NewSimpleTokenTTLKeeper(tokenDeleteFunc)
as.rangePermCache = make(map[string]*unifiedRangePermissions)
as.revision = getRevision(tx)
plog.Noticef("Authentication enabled")
return nil
}
func (as *authStore) AuthDisable() {
as.enabledMu.Lock()
defer as.enabledMu.Unlock()
if !as.enabled {
return
}
b := as.be
tx := b.BatchTx()
tx.Lock()
tx.UnsafePut(authBucketName, enableFlagKey, authDisabled)
as.commitRevision(tx)
tx.Unlock()
b.ForceCommit()
as.enabled = false
as.simpleTokensMu.Lock()
as.simpleTokens = make(map[string]string) // invalidate all tokens
as.simpleTokensMu.Unlock()
if as.simpleTokenKeeper != nil {
as.simpleTokenKeeper.stop()
as.simpleTokenKeeper = nil
}
plog.Noticef("Authentication disabled")
}
func (as *authStore) Close() error {
as.enabledMu.Lock()
defer as.enabledMu.Unlock()
if !as.enabled {
return nil
}
if as.simpleTokenKeeper != nil {
as.simpleTokenKeeper.stop()
as.simpleTokenKeeper = nil
}
return nil
}
func (as *authStore) Authenticate(ctx context.Context, username, password string) (*pb.AuthenticateResponse, error) {
if !as.isAuthEnabled() {
return nil, ErrAuthNotEnabled
}
// TODO(mitake): after adding jwt support, branching based on values of ctx is required
index := ctx.Value("index").(uint64)
simpleToken := ctx.Value("simpleToken").(string)
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, username)
if user == nil {
return nil, ErrAuthFailed
}
token := fmt.Sprintf("%s.%d", simpleToken, index)
as.assignSimpleTokenToUser(username, token)
plog.Infof("authorized %s, token is %s", username, token)
return &pb.AuthenticateResponse{Token: token}, nil
}
func (as *authStore) CheckPassword(username, password string) (uint64, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, username)
if user == nil {
return 0, ErrAuthFailed
}
if bcrypt.CompareHashAndPassword(user.Password, []byte(password)) != nil {
plog.Noticef("authentication failed, invalid password for user %s", username)
return 0, ErrAuthFailed
}
return getRevision(tx), nil
}
func (as *authStore) Recover(be backend.Backend) {
enabled := false
as.be = be
tx := be.BatchTx()
tx.Lock()
_, vs := tx.UnsafeRange(authBucketName, enableFlagKey, nil, 0)
if len(vs) == 1 {
if bytes.Equal(vs[0], authEnabled) {
enabled = true
}
}
as.revision = getRevision(tx)
tx.Unlock()
as.enabledMu.Lock()
as.enabled = enabled
as.enabledMu.Unlock()
}
func (as *authStore) UserAdd(r *pb.AuthUserAddRequest) (*pb.AuthUserAddResponse, error) {
if len(r.Name) == 0 {
return nil, ErrUserEmpty
}
hashed, err := bcrypt.GenerateFromPassword([]byte(r.Password), BcryptCost)
if err != nil {
plog.Errorf("failed to hash password: %s", err)
return nil, err
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, r.Name)
if user != nil {
return nil, ErrUserAlreadyExist
}
newUser := &authpb.User{
Name: []byte(r.Name),
Password: hashed,
}
putUser(tx, newUser)
as.commitRevision(tx)
plog.Noticef("added a new user: %s", r.Name)
return &pb.AuthUserAddResponse{}, nil
}
func (as *authStore) UserDelete(r *pb.AuthUserDeleteRequest) (*pb.AuthUserDeleteResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, r.Name)
if user == nil {
return nil, ErrUserNotFound
}
delUser(tx, r.Name)
as.commitRevision(tx)
as.invalidateCachedPerm(r.Name)
as.invalidateUser(r.Name)
plog.Noticef("deleted a user: %s", r.Name)
return &pb.AuthUserDeleteResponse{}, nil
}
func (as *authStore) UserChangePassword(r *pb.AuthUserChangePasswordRequest) (*pb.AuthUserChangePasswordResponse, error) {
// TODO(mitake): measure the cost of bcrypt.GenerateFromPassword()
// If the cost is too high, we should move the encryption to outside of the raft
hashed, err := bcrypt.GenerateFromPassword([]byte(r.Password), BcryptCost)
if err != nil {
plog.Errorf("failed to hash password: %s", err)
return nil, err
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, r.Name)
if user == nil {
return nil, ErrUserNotFound
}
updatedUser := &authpb.User{
Name: []byte(r.Name),
Roles: user.Roles,
Password: hashed,
}
putUser(tx, updatedUser)
as.commitRevision(tx)
as.invalidateCachedPerm(r.Name)
as.invalidateUser(r.Name)
plog.Noticef("changed a password of a user: %s", r.Name)
return &pb.AuthUserChangePasswordResponse{}, nil
}
func (as *authStore) UserGrantRole(r *pb.AuthUserGrantRoleRequest) (*pb.AuthUserGrantRoleResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, r.User)
if user == nil {
return nil, ErrUserNotFound
}
if r.Role != rootRole {
role := getRole(tx, r.Role)
if role == nil {
return nil, ErrRoleNotFound
}
}
idx := sort.SearchStrings(user.Roles, r.Role)
if idx < len(user.Roles) && strings.Compare(user.Roles[idx], r.Role) == 0 {
plog.Warningf("user %s is already granted role %s", r.User, r.Role)
return &pb.AuthUserGrantRoleResponse{}, nil
}
user.Roles = append(user.Roles, r.Role)
sort.Sort(sort.StringSlice(user.Roles))
putUser(tx, user)
as.invalidateCachedPerm(r.User)
as.commitRevision(tx)
plog.Noticef("granted role %s to user %s", r.Role, r.User)
return &pb.AuthUserGrantRoleResponse{}, nil
}
func (as *authStore) UserGet(r *pb.AuthUserGetRequest) (*pb.AuthUserGetResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
var resp pb.AuthUserGetResponse
user := getUser(tx, r.Name)
if user == nil {
return nil, ErrUserNotFound
}
resp.Roles = append(resp.Roles, user.Roles...)
return &resp, nil
}
func (as *authStore) UserList(r *pb.AuthUserListRequest) (*pb.AuthUserListResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
var resp pb.AuthUserListResponse
users := getAllUsers(tx)
for _, u := range users {
resp.Users = append(resp.Users, string(u.Name))
}
return &resp, nil
}
func (as *authStore) UserRevokeRole(r *pb.AuthUserRevokeRoleRequest) (*pb.AuthUserRevokeRoleResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, r.Name)
if user == nil {
return nil, ErrUserNotFound
}
updatedUser := &authpb.User{
Name: user.Name,
Password: user.Password,
}
for _, role := range user.Roles {
if strings.Compare(role, r.Role) != 0 {
updatedUser.Roles = append(updatedUser.Roles, role)
}
}
if len(updatedUser.Roles) == len(user.Roles) {
return nil, ErrRoleNotGranted
}
putUser(tx, updatedUser)
as.invalidateCachedPerm(r.Name)
as.commitRevision(tx)
plog.Noticef("revoked role %s from user %s", r.Role, r.Name)
return &pb.AuthUserRevokeRoleResponse{}, nil
}
func (as *authStore) RoleGet(r *pb.AuthRoleGetRequest) (*pb.AuthRoleGetResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
var resp pb.AuthRoleGetResponse
role := getRole(tx, r.Role)
if role == nil {
return nil, ErrRoleNotFound
}
resp.Perm = append(resp.Perm, role.KeyPermission...)
return &resp, nil
}
func (as *authStore) RoleList(r *pb.AuthRoleListRequest) (*pb.AuthRoleListResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
var resp pb.AuthRoleListResponse
roles := getAllRoles(tx)
for _, r := range roles {
resp.Roles = append(resp.Roles, string(r.Name))
}
return &resp, nil
}
func (as *authStore) RoleRevokePermission(r *pb.AuthRoleRevokePermissionRequest) (*pb.AuthRoleRevokePermissionResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
role := getRole(tx, r.Role)
if role == nil {
return nil, ErrRoleNotFound
}
updatedRole := &authpb.Role{
Name: role.Name,
}
for _, perm := range role.KeyPermission {
if !bytes.Equal(perm.Key, []byte(r.Key)) || !bytes.Equal(perm.RangeEnd, []byte(r.RangeEnd)) {
updatedRole.KeyPermission = append(updatedRole.KeyPermission, perm)
}
}
if len(role.KeyPermission) == len(updatedRole.KeyPermission) {
return nil, ErrPermissionNotGranted
}
putRole(tx, updatedRole)
// TODO(mitake): currently single role update invalidates every cache
// It should be optimized.
as.clearCachedPerm()
as.commitRevision(tx)
plog.Noticef("revoked key %s from role %s", r.Key, r.Role)
return &pb.AuthRoleRevokePermissionResponse{}, nil
}
func (as *authStore) RoleDelete(r *pb.AuthRoleDeleteRequest) (*pb.AuthRoleDeleteResponse, error) {
// TODO(mitake): current scheme of role deletion allows existing users to have the deleted roles
//
// Assume a case like below:
// create a role r1
// create a user u1 and grant r1 to u1
// delete r1
//
// After this sequence, u1 is still granted the role r1. So if admin create a new role with the name r1,
// the new r1 is automatically granted u1.
// In some cases, it would be confusing. So we need to provide an option for deleting the grant relation
// from all users.
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
role := getRole(tx, r.Role)
if role == nil {
return nil, ErrRoleNotFound
}
delRole(tx, r.Role)
as.commitRevision(tx)
plog.Noticef("deleted role %s", r.Role)
return &pb.AuthRoleDeleteResponse{}, nil
}
func (as *authStore) RoleAdd(r *pb.AuthRoleAddRequest) (*pb.AuthRoleAddResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
role := getRole(tx, r.Name)
if role != nil {
return nil, ErrRoleAlreadyExist
}
newRole := &authpb.Role{
Name: []byte(r.Name),
}
putRole(tx, newRole)
as.commitRevision(tx)
plog.Noticef("Role %s is created", r.Name)
return &pb.AuthRoleAddResponse{}, nil
}
func (as *authStore) AuthInfoFromToken(token string) (*AuthInfo, bool) {
as.simpleTokensMu.RLock()
defer as.simpleTokensMu.RUnlock()
t, ok := as.simpleTokens[token]
if ok {
as.simpleTokenKeeper.resetSimpleToken(token)
}
return &AuthInfo{Username: t, Revision: as.revision}, ok
}
type permSlice []*authpb.Permission
func (perms permSlice) Len() int {
return len(perms)
}
func (perms permSlice) Less(i, j int) bool {
return bytes.Compare(perms[i].Key, perms[j].Key) < 0
}
func (perms permSlice) Swap(i, j int) {
perms[i], perms[j] = perms[j], perms[i]
}
func (as *authStore) RoleGrantPermission(r *pb.AuthRoleGrantPermissionRequest) (*pb.AuthRoleGrantPermissionResponse, error) {
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
role := getRole(tx, r.Name)
if role == nil {
return nil, ErrRoleNotFound
}
idx := sort.Search(len(role.KeyPermission), func(i int) bool {
return bytes.Compare(role.KeyPermission[i].Key, []byte(r.Perm.Key)) >= 0
})
if idx < len(role.KeyPermission) && bytes.Equal(role.KeyPermission[idx].Key, r.Perm.Key) && bytes.Equal(role.KeyPermission[idx].RangeEnd, r.Perm.RangeEnd) {
// update existing permission
role.KeyPermission[idx].PermType = r.Perm.PermType
} else {
// append new permission to the role
newPerm := &authpb.Permission{
Key: []byte(r.Perm.Key),
RangeEnd: []byte(r.Perm.RangeEnd),
PermType: r.Perm.PermType,
}
role.KeyPermission = append(role.KeyPermission, newPerm)
sort.Sort(permSlice(role.KeyPermission))
}
putRole(tx, role)
// TODO(mitake): currently single role update invalidates every cache
// It should be optimized.
as.clearCachedPerm()
as.commitRevision(tx)
plog.Noticef("role %s's permission of key %s is updated as %s", r.Name, r.Perm.Key, authpb.Permission_Type_name[int32(r.Perm.PermType)])
return &pb.AuthRoleGrantPermissionResponse{}, nil
}
func (as *authStore) isOpPermitted(userName string, revision uint64, key, rangeEnd []byte, permTyp authpb.Permission_Type) error {
// TODO(mitake): this function would be costly so we need a caching mechanism
if !as.isAuthEnabled() {
return nil
}
// only gets rev == 0 when passed AuthInfo{}; no user given
if revision == 0 {
return ErrUserEmpty
}
if revision < as.revision {
return ErrAuthOldRevision
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
user := getUser(tx, userName)
if user == nil {
plog.Errorf("invalid user name %s for permission checking", userName)
return ErrPermissionDenied
}
// root role should have permission on all ranges
if hasRootRole(user) {
return nil
}
if as.isRangeOpPermitted(tx, userName, key, rangeEnd, permTyp) {
return nil
}
return ErrPermissionDenied
}
func (as *authStore) IsPutPermitted(authInfo *AuthInfo, key []byte) error {
return as.isOpPermitted(authInfo.Username, authInfo.Revision, key, nil, authpb.WRITE)
}
func (as *authStore) IsRangePermitted(authInfo *AuthInfo, key, rangeEnd []byte) error {
return as.isOpPermitted(authInfo.Username, authInfo.Revision, key, rangeEnd, authpb.READ)
}
func (as *authStore) IsDeleteRangePermitted(authInfo *AuthInfo, key, rangeEnd []byte) error {
return as.isOpPermitted(authInfo.Username, authInfo.Revision, key, rangeEnd, authpb.WRITE)
}
func (as *authStore) IsAdminPermitted(authInfo *AuthInfo) error {
if !as.isAuthEnabled() {
return nil
}
tx := as.be.BatchTx()
tx.Lock()
defer tx.Unlock()
u := getUser(tx, authInfo.Username)
if u == nil {
return ErrUserNotFound
}
if !hasRootRole(u) {
return ErrPermissionDenied
}
return nil
}
func getUser(tx backend.BatchTx, username string) *authpb.User {
_, vs := tx.UnsafeRange(authUsersBucketName, []byte(username), nil, 0)
if len(vs) == 0 {
return nil
}
user := &authpb.User{}
err := user.Unmarshal(vs[0])
if err != nil {
plog.Panicf("failed to unmarshal user struct (name: %s): %s", username, err)
}
return user
}
func getAllUsers(tx backend.BatchTx) []*authpb.User {
_, vs := tx.UnsafeRange(authUsersBucketName, []byte{0}, []byte{0xff}, -1)
if len(vs) == 0 {
return nil
}
var users []*authpb.User
for _, v := range vs {
user := &authpb.User{}
err := user.Unmarshal(v)
if err != nil {
plog.Panicf("failed to unmarshal user struct: %s", err)
}
users = append(users, user)
}
return users
}
func putUser(tx backend.BatchTx, user *authpb.User) {
b, err := user.Marshal()
if err != nil {
plog.Panicf("failed to marshal user struct (name: %s): %s", user.Name, err)
}
tx.UnsafePut(authUsersBucketName, user.Name, b)
}
func delUser(tx backend.BatchTx, username string) {
tx.UnsafeDelete(authUsersBucketName, []byte(username))
}
func getRole(tx backend.BatchTx, rolename string) *authpb.Role {
_, vs := tx.UnsafeRange(authRolesBucketName, []byte(rolename), nil, 0)
if len(vs) == 0 {
return nil
}
role := &authpb.Role{}
err := role.Unmarshal(vs[0])
if err != nil {
plog.Panicf("failed to unmarshal role struct (name: %s): %s", rolename, err)
}
return role
}
func getAllRoles(tx backend.BatchTx) []*authpb.Role {
_, vs := tx.UnsafeRange(authRolesBucketName, []byte{0}, []byte{0xff}, -1)
if len(vs) == 0 {
return nil
}
var roles []*authpb.Role
for _, v := range vs {
role := &authpb.Role{}
err := role.Unmarshal(v)
if err != nil {
plog.Panicf("failed to unmarshal role struct: %s", err)
}
roles = append(roles, role)
}
return roles
}
func putRole(tx backend.BatchTx, role *authpb.Role) {
b, err := role.Marshal()
if err != nil {
plog.Panicf("failed to marshal role struct (name: %s): %s", role.Name, err)
}
tx.UnsafePut(authRolesBucketName, []byte(role.Name), b)
}
func delRole(tx backend.BatchTx, rolename string) {
tx.UnsafeDelete(authRolesBucketName, []byte(rolename))
}
func (as *authStore) isAuthEnabled() bool {
as.enabledMu.RLock()
defer as.enabledMu.RUnlock()
return as.enabled
}
func NewAuthStore(be backend.Backend) *authStore {
tx := be.BatchTx()
tx.Lock()
tx.UnsafeCreateBucket(authBucketName)
tx.UnsafeCreateBucket(authUsersBucketName)
tx.UnsafeCreateBucket(authRolesBucketName)
as := &authStore{
be: be,
simpleTokens: make(map[string]string),
revision: 0,
}
as.commitRevision(tx)
tx.Unlock()
be.ForceCommit()
return as
}
func hasRootRole(u *authpb.User) bool {
for _, r := range u.Roles {
if r == rootRole {
return true
}
}
return false
}
func (as *authStore) commitRevision(tx backend.BatchTx) {
as.revision++
revBytes := make([]byte, revBytesLen)
binary.BigEndian.PutUint64(revBytes, as.revision)
tx.UnsafePut(authBucketName, revisionKey, revBytes)
}
func getRevision(tx backend.BatchTx) uint64 {
_, vs := tx.UnsafeRange(authBucketName, []byte(revisionKey), nil, 0)
if len(vs) != 1 {
plog.Panicf("failed to get the key of auth store revision")
}
return binary.BigEndian.Uint64(vs[0])
}
func (as *authStore) Revision() uint64 {
return as.revision
}
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