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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
// Copyright 2015 Matthew Holt and The Caddy 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 caddycmd
import (
"archive/tar"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"os"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/certmagic"
)
type storVal struct {
StorageRaw json.RawMessage `json:"storage,omitempty" caddy:"namespace=caddy.storage inline_key=module"`
}
// determineStorage returns the top-level storage module from the given config.
// It may return nil even if no error.
func determineStorage(configFile string, configAdapter string) (*storVal, error) {
cfg, _, err := LoadConfig(configFile, configAdapter)
if err != nil {
return nil, err
}
// storage defaults to FileStorage if not explicitly
// defined in the config, so the config can be valid
// json but unmarshaling will fail.
if !json.Valid(cfg) {
return nil, &json.SyntaxError{}
}
var tmpStruct storVal
err = json.Unmarshal(cfg, &tmpStruct)
if err != nil {
// default case, ignore the error
var jsonError *json.SyntaxError
if errors.As(err, &jsonError) {
return nil, nil
}
return nil, err
}
return &tmpStruct, nil
}
func cmdImportStorage(fl Flags) (int, error) {
importStorageCmdConfigFlag := fl.String("config")
importStorageCmdImportFile := fl.String("input")
if importStorageCmdConfigFlag == "" {
return caddy.ExitCodeFailedStartup, errors.New("--config is required")
}
if importStorageCmdImportFile == "" {
return caddy.ExitCodeFailedStartup, errors.New("--input is required")
}
// extract storage from config if possible
storageCfg, err := determineStorage(importStorageCmdConfigFlag, "")
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
// load specified storage or fallback to default
var stor certmagic.Storage
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if storageCfg != nil && storageCfg.StorageRaw != nil {
val, err := ctx.LoadModule(storageCfg, "StorageRaw")
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
stor, err = val.(caddy.StorageConverter).CertMagicStorage()
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
} else {
stor = caddy.DefaultStorage
}
// setup input
var f *os.File
if importStorageCmdImportFile == "-" {
f = os.Stdin
} else {
f, err = os.Open(importStorageCmdImportFile)
if err != nil {
return caddy.ExitCodeFailedStartup, fmt.Errorf("opening input file: %v", err)
}
defer f.Close()
}
// store each archive element
tr := tar.NewReader(f)
for {
hdr, err := tr.Next()
if err == io.EOF {
break
}
if err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("reading archive: %v", err)
}
b, err := io.ReadAll(tr)
if err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("reading archive: %v", err)
}
err = stor.Store(ctx, hdr.Name, b)
if err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("reading archive: %v", err)
}
}
fmt.Println("Successfully imported storage")
return caddy.ExitCodeSuccess, nil
}
func cmdExportStorage(fl Flags) (int, error) {
exportStorageCmdConfigFlag := fl.String("config")
exportStorageCmdOutputFlag := fl.String("output")
if exportStorageCmdConfigFlag == "" {
return caddy.ExitCodeFailedStartup, errors.New("--config is required")
}
if exportStorageCmdOutputFlag == "" {
return caddy.ExitCodeFailedStartup, errors.New("--output is required")
}
// extract storage from config if possible
storageCfg, err := determineStorage(exportStorageCmdConfigFlag, "")
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
// load specified storage or fallback to default
var stor certmagic.Storage
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if storageCfg != nil && storageCfg.StorageRaw != nil {
val, err := ctx.LoadModule(storageCfg, "StorageRaw")
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
stor, err = val.(caddy.StorageConverter).CertMagicStorage()
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
} else {
stor = caddy.DefaultStorage
}
// enumerate all keys
keys, err := stor.List(ctx, "", true)
if err != nil {
return caddy.ExitCodeFailedStartup, err
}
// setup output
var f *os.File
if exportStorageCmdOutputFlag == "-" {
f = os.Stdout
} else {
f, err = os.Create(exportStorageCmdOutputFlag)
if err != nil {
return caddy.ExitCodeFailedStartup, fmt.Errorf("opening output file: %v", err)
}
defer f.Close()
}
// `IsTerminal: true` keys hold the values we
// care about, write them out
tw := tar.NewWriter(f)
for _, k := range keys {
info, err := stor.Stat(ctx, k)
if err != nil {
return caddy.ExitCodeFailedQuit, err
}
if info.IsTerminal {
v, err := stor.Load(ctx, k)
if err != nil {
return caddy.ExitCodeFailedQuit, err
}
hdr := &tar.Header{
Name: k,
Mode: 0o600,
Size: int64(len(v)),
}
if err = tw.WriteHeader(hdr); err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("writing archive: %v", err)
}
if _, err = tw.Write(v); err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("writing archive: %v", err)
}
}
}
if err = tw.Close(); err != nil {
return caddy.ExitCodeFailedQuit, fmt.Errorf("writing archive: %v", err)
}
return caddy.ExitCodeSuccess, nil
}
|
