-
Notifications
You must be signed in to change notification settings - Fork 19
/
file.go
114 lines (89 loc) · 2.44 KB
/
file.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
package paths
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
vgcrypto "code.vegaprotocol.io/vega/libs/crypto"
vgfs "code.vegaprotocol.io/vega/libs/fs"
"github.com/BurntSushi/toml"
)
var (
ErrEmptyResponse = errors.New("empty response")
ErrEmptyFile = errors.New("empty file")
)
func FetchStructuredFile(url string, v interface{}) error {
resp, err := http.Get(url) //nolint:noctx
if err != nil {
return fmt.Errorf("couldn't load file: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return errors.New(http.StatusText(resp.StatusCode))
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("couldn't read HTTP response body: %w", err)
}
if len(body) == 0 {
return ErrEmptyResponse
}
if _, err := toml.Decode(string(body), v); err != nil {
return fmt.Errorf("invalid TOML document: %w", err)
}
return nil
}
func ReadStructuredFile(path string, v interface{}) error {
buf, err := vgfs.ReadFile(path)
if err != nil {
return fmt.Errorf("couldn't read file: %w", err)
}
if len(buf) == 0 {
return ErrEmptyFile
}
if _, err := toml.Decode(string(buf), v); err != nil {
return fmt.Errorf("invalid TOML file: %w", err)
}
return nil
}
func WriteStructuredFile(path string, v interface{}) error {
buf := new(bytes.Buffer)
if err := toml.NewEncoder(buf).Encode(v); err != nil {
return fmt.Errorf("couldn't encode to TOML: %w", err)
}
if err := vgfs.WriteFile(path, buf.Bytes()); err != nil {
return fmt.Errorf("couldn't write file: %w", err)
}
return nil
}
func ReadEncryptedFile(path string, passphrase string, v interface{}) error {
encryptedBuf, err := vgfs.ReadFile(path)
if err != nil {
return fmt.Errorf("couldn't read secure file: %w", err)
}
buf, err := vgcrypto.Decrypt(encryptedBuf, passphrase)
if err != nil {
return fmt.Errorf("couldn't decrypt content: %w", err)
}
err = json.Unmarshal(buf, v)
if err != nil {
return fmt.Errorf("couldn't unmarshal content: %w", err)
}
return nil
}
func WriteEncryptedFile(path string, passphrase string, v interface{}) error {
buf, err := json.Marshal(v)
if err != nil {
return fmt.Errorf("couldn't marshal content: %w", err)
}
encryptedBuf, err := vgcrypto.Encrypt(buf, passphrase)
if err != nil {
return fmt.Errorf("couldn't encrypt content: %w", err)
}
if err := vgfs.WriteFile(path, encryptedBuf); err != nil {
return fmt.Errorf("couldn't write secure file: %w", err)
}
return nil
}