-
Notifications
You must be signed in to change notification settings - Fork 43
/
generatecontext.go
155 lines (138 loc) · 4.35 KB
/
generatecontext.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/*
* Copyright 2023 The NATS 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 cmd
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
"github.com/nats-io/nsc/v2/cmd/store"
"github.com/nats-io/nsc/v2/home"
"github.com/spf13/cobra"
)
func init() {
generateCmd.AddCommand(createGenerateContext())
}
type GenerateContextParams struct {
AccountContextParams
user string
context string
creds string
operatorURL string
}
func createGenerateContext() *cobra.Command {
var params GenerateContextParams
cmd := &cobra.Command{
Use: "context",
Short: "Generate nats cli user context",
Args: MaxArgs(0),
SilenceUsage: true,
Example: `nsc generate context --account a --user u --context contextName`,
RunE: func(cmd *cobra.Command, args []string) error {
return RunAction(cmd, args, ¶ms)
},
}
cmd.Flags().StringVarP(¶ms.user, "user", "u", "", "user name")
cmd.Flags().StringVarP(¶ms.context, "context", "", "", "context name")
params.AccountContextParams.BindFlags(cmd)
return cmd
}
func (p *GenerateContextParams) SetDefaults(ctx ActionCtx) error {
p.AccountContextParams.SetDefaults(ctx)
if p.user == "" && p.AccountContextParams.Name != "" {
entries, err := ctx.StoreCtx().Store.ListEntries(store.Accounts, p.AccountContextParams.Name, store.Users)
if err != nil {
return err
}
switch len(entries) {
case 0:
return fmt.Errorf("account %q has no users", p.AccountContextParams.Name)
case 1:
p.user = entries[0]
}
}
return nil
}
func (p *GenerateContextParams) PreInteractive(_ ActionCtx) error {
return nil
}
func (p *GenerateContextParams) Load(ctx ActionCtx) error {
oc, err := ctx.StoreCtx().Store.ReadOperatorClaim()
if err != nil {
return err
}
if len(oc.OperatorServiceURLs) > 0 {
p.operatorURL = oc.OperatorServiceURLs[0]
}
return nil
}
func (p *GenerateContextParams) PostInteractive(_ ActionCtx) error {
return nil
}
func (p *GenerateContextParams) Validate(ctx ActionCtx) error {
if p.context == "" {
return fmt.Errorf("context name is required")
}
if strings.ContainsAny(p.context, "/\\") {
return fmt.Errorf("context name cannot contain filepath separators")
}
if p.AccountContextParams.Name == "" {
return fmt.Errorf("account is required")
}
if p.user == "" {
return fmt.Errorf("user is required")
}
if !ctx.StoreCtx().Store.Has(store.Accounts, p.AccountContextParams.Name, store.Users, store.JwtName(p.user)) {
return fmt.Errorf("user %q not found in %q", p.user, p.AccountContextParams.Name)
}
p.creds = ctx.StoreCtx().KeyStore.CalcUserCredsPath(p.AccountContextParams.Name, p.user)
if _, err := os.Stat(p.creds); err != nil {
return fmt.Errorf("creds file %q - doesn't exist - nsc generate creds first", p.creds)
}
return nil
}
type cliContext struct {
Nsc string `json:"nsc,omitempty"`
Url string `json:"url,omitempty"`
Creds string `json:"creds,omitempty"`
}
func (p *GenerateContextParams) Run(ctx ActionCtx) (store.Status, error) {
var s store.Status
natsCli := cliContext{}
natsCli.Creds = p.creds
natsCli.Nsc = fmt.Sprintf(`nsc://%s/%s/%s`, ctx.StoreCtx().Operator.Name, p.AccountContextParams.Name, p.user)
natsCli.Url = p.operatorURL
if err := os.MkdirAll(home.NatsCliContextDir(), 0755); err != nil {
s = store.ErrorStatus("failed to create context dir %q: %v", home.NatsCliContextDir(), err)
return s, nil
}
if !strings.HasSuffix(p.context, ".json") {
p.context = fmt.Sprintf("%s.json", p.context)
}
fn := filepath.Join(home.NatsCliContextDir(), p.context)
ctx.CurrentCmd().Println(fn)
bytes, err := json.Marshal(natsCli)
if err != nil {
s = store.FromError(err)
return s, nil
}
if err := Write(fn, bytes); err != nil {
s = store.ErrorStatus("failed to write context file: %v", err)
return s, nil
}
s = store.OKStatus("wrote nats cli context file to %#q", AbbrevHomePaths(fn))
return s, nil
}