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
|
// Copyright The Notary Project 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 policy
import (
"encoding/json"
"errors"
"fmt"
"io/fs"
"os"
"github.com/notaryproject/notation-go/dir"
"github.com/notaryproject/notation-go/verifier/trustpolicy"
"github.com/spf13/cobra"
)
type showOpts struct {
}
func showCmd() *cobra.Command {
var opts showOpts
command := &cobra.Command{
Use: "show [flags]",
Short: "Show trust policy configuration",
Long: `Show trust policy configuration.
** This command is in preview and under development. **
Example - Show current trust policy configuration:
notation policy show
Example - Save current trust policy configuration to a file:
notation policy show > my_policy.json
`,
Args: cobra.ExactArgs(0),
RunE: func(cmd *cobra.Command, args []string) error {
return runShow(cmd, opts)
},
}
return command
}
func runShow(command *cobra.Command, opts showOpts) error {
// get policy file path
policyPath, err := dir.ConfigFS().SysPath(dir.PathTrustPolicy)
if err != nil {
return fmt.Errorf("failed to obtain path of trust policy file: %w", err)
}
// core process
policyJSON, err := os.ReadFile(policyPath)
if err != nil {
if errors.Is(err, fs.ErrNotExist) {
return fmt.Errorf("failed to show trust policy as the trust policy file does not exist.\nYou can import one using `notation policy import <path-to-policy.json>`")
}
return fmt.Errorf("failed to show trust policy: %w", err)
}
var doc trustpolicy.Document
if err = json.Unmarshal(policyJSON, &doc); err == nil {
err = doc.Validate()
}
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %s\n", err.Error())
fmt.Fprintf(os.Stderr, "Existing trust policy configuration is invalid, you may update or create a new one via `notation policy import <path-to-policy.json>`\n")
// not returning to show the invalid policy configuration
}
// show policy content
_, err = os.Stdout.Write(policyJSON)
return err
}
|
