1// Copyright 2016 The etcd Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package command
16
17import (
18	"fmt"
19
20	"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
21	"github.com/spf13/cobra"
22)
23
24// NewAuthCommand returns the cobra command for "auth".
25func NewAuthCommand() *cobra.Command {
26	ac := &cobra.Command{
27		Use:   "auth <enable or disable>",
28		Short: "Enable or disable authentication",
29	}
30
31	ac.AddCommand(newAuthEnableCommand())
32	ac.AddCommand(newAuthDisableCommand())
33
34	return ac
35}
36
37func newAuthEnableCommand() *cobra.Command {
38	return &cobra.Command{
39		Use:   "enable",
40		Short: "Enables authentication",
41		Run:   authEnableCommandFunc,
42	}
43}
44
45// authEnableCommandFunc executes the "auth enable" command.
46func authEnableCommandFunc(cmd *cobra.Command, args []string) {
47	if len(args) != 0 {
48		ExitWithError(ExitBadArgs, fmt.Errorf("auth enable command does not accept any arguments."))
49	}
50
51	ctx, cancel := commandCtx(cmd)
52	cli := mustClientFromCmd(cmd)
53	var err error
54	for err == nil {
55		if _, err = cli.AuthEnable(ctx); err == nil {
56			break
57		}
58		if err == rpctypes.ErrRootRoleNotExist {
59			if _, err = cli.RoleAdd(ctx, "root"); err != nil {
60				break
61			}
62			if _, err = cli.UserGrantRole(ctx, "root", "root"); err != nil {
63				break
64			}
65		}
66	}
67	cancel()
68	if err != nil {
69		ExitWithError(ExitError, err)
70	}
71
72	fmt.Println("Authentication Enabled")
73}
74
75func newAuthDisableCommand() *cobra.Command {
76	return &cobra.Command{
77		Use:   "disable",
78		Short: "Disables authentication",
79		Run:   authDisableCommandFunc,
80	}
81}
82
83// authDisableCommandFunc executes the "auth disable" command.
84func authDisableCommandFunc(cmd *cobra.Command, args []string) {
85	if len(args) != 0 {
86		ExitWithError(ExitBadArgs, fmt.Errorf("auth disable command does not accept any arguments."))
87	}
88
89	ctx, cancel := commandCtx(cmd)
90	_, err := mustClientFromCmd(cmd).Auth.AuthDisable(ctx)
91	cancel()
92	if err != nil {
93		ExitWithError(ExitError, err)
94	}
95
96	fmt.Println("Authentication Disabled")
97}
98