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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
package dash
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"time"
"github.com/seaweedfs/seaweedfs/weed/glog"
)
const (
// Configuration file names
MaintenanceConfigFile = "maintenance.json"
AdminConfigFile = "admin.json"
ConfigDirPermissions = 0755
ConfigFilePermissions = 0644
)
// ConfigPersistence handles saving and loading configuration files
type ConfigPersistence struct {
dataDir string
}
// NewConfigPersistence creates a new configuration persistence manager
func NewConfigPersistence(dataDir string) *ConfigPersistence {
return &ConfigPersistence{
dataDir: dataDir,
}
}
// SaveMaintenanceConfig saves maintenance configuration to JSON file
func (cp *ConfigPersistence) SaveMaintenanceConfig(config *MaintenanceConfig) error {
if cp.dataDir == "" {
return fmt.Errorf("no data directory specified, cannot save configuration")
}
configPath := filepath.Join(cp.dataDir, MaintenanceConfigFile)
// Create directory if it doesn't exist
if err := os.MkdirAll(cp.dataDir, ConfigDirPermissions); err != nil {
return fmt.Errorf("failed to create config directory: %w", err)
}
// Marshal configuration to JSON
configData, err := json.MarshalIndent(config, "", " ")
if err != nil {
return fmt.Errorf("failed to marshal maintenance config: %w", err)
}
// Write to file
if err := os.WriteFile(configPath, configData, ConfigFilePermissions); err != nil {
return fmt.Errorf("failed to write maintenance config file: %w", err)
}
glog.V(1).Infof("Saved maintenance configuration to %s", configPath)
return nil
}
// LoadMaintenanceConfig loads maintenance configuration from JSON file
func (cp *ConfigPersistence) LoadMaintenanceConfig() (*MaintenanceConfig, error) {
if cp.dataDir == "" {
glog.V(1).Infof("No data directory specified, using default maintenance configuration")
return DefaultMaintenanceConfig(), nil
}
configPath := filepath.Join(cp.dataDir, MaintenanceConfigFile)
// Check if file exists
if _, err := os.Stat(configPath); os.IsNotExist(err) {
glog.V(1).Infof("Maintenance config file does not exist, using defaults: %s", configPath)
return DefaultMaintenanceConfig(), nil
}
// Read file
configData, err := os.ReadFile(configPath)
if err != nil {
return nil, fmt.Errorf("failed to read maintenance config file: %w", err)
}
// Unmarshal JSON
var config MaintenanceConfig
if err := json.Unmarshal(configData, &config); err != nil {
return nil, fmt.Errorf("failed to unmarshal maintenance config: %w", err)
}
glog.V(1).Infof("Loaded maintenance configuration from %s", configPath)
return &config, nil
}
// SaveAdminConfig saves general admin configuration to JSON file
func (cp *ConfigPersistence) SaveAdminConfig(config map[string]interface{}) error {
if cp.dataDir == "" {
return fmt.Errorf("no data directory specified, cannot save configuration")
}
configPath := filepath.Join(cp.dataDir, AdminConfigFile)
// Create directory if it doesn't exist
if err := os.MkdirAll(cp.dataDir, ConfigDirPermissions); err != nil {
return fmt.Errorf("failed to create config directory: %w", err)
}
// Marshal configuration to JSON
configData, err := json.MarshalIndent(config, "", " ")
if err != nil {
return fmt.Errorf("failed to marshal admin config: %w", err)
}
// Write to file
if err := os.WriteFile(configPath, configData, ConfigFilePermissions); err != nil {
return fmt.Errorf("failed to write admin config file: %w", err)
}
glog.V(1).Infof("Saved admin configuration to %s", configPath)
return nil
}
// LoadAdminConfig loads general admin configuration from JSON file
func (cp *ConfigPersistence) LoadAdminConfig() (map[string]interface{}, error) {
if cp.dataDir == "" {
glog.V(1).Infof("No data directory specified, using default admin configuration")
return make(map[string]interface{}), nil
}
configPath := filepath.Join(cp.dataDir, AdminConfigFile)
// Check if file exists
if _, err := os.Stat(configPath); os.IsNotExist(err) {
glog.V(1).Infof("Admin config file does not exist, using defaults: %s", configPath)
return make(map[string]interface{}), nil
}
// Read file
configData, err := os.ReadFile(configPath)
if err != nil {
return nil, fmt.Errorf("failed to read admin config file: %w", err)
}
// Unmarshal JSON
var config map[string]interface{}
if err := json.Unmarshal(configData, &config); err != nil {
return nil, fmt.Errorf("failed to unmarshal admin config: %w", err)
}
glog.V(1).Infof("Loaded admin configuration from %s", configPath)
return config, nil
}
// GetConfigPath returns the path to a configuration file
func (cp *ConfigPersistence) GetConfigPath(filename string) string {
if cp.dataDir == "" {
return ""
}
return filepath.Join(cp.dataDir, filename)
}
// ListConfigFiles returns all configuration files in the data directory
func (cp *ConfigPersistence) ListConfigFiles() ([]string, error) {
if cp.dataDir == "" {
return nil, fmt.Errorf("no data directory specified")
}
files, err := os.ReadDir(cp.dataDir)
if err != nil {
return nil, fmt.Errorf("failed to read config directory: %w", err)
}
var configFiles []string
for _, file := range files {
if !file.IsDir() && filepath.Ext(file.Name()) == ".json" {
configFiles = append(configFiles, file.Name())
}
}
return configFiles, nil
}
// BackupConfig creates a backup of a configuration file
func (cp *ConfigPersistence) BackupConfig(filename string) error {
if cp.dataDir == "" {
return fmt.Errorf("no data directory specified")
}
configPath := filepath.Join(cp.dataDir, filename)
if _, err := os.Stat(configPath); os.IsNotExist(err) {
return fmt.Errorf("config file does not exist: %s", filename)
}
// Create backup filename with timestamp
timestamp := time.Now().Format("2006-01-02_15-04-05")
backupName := fmt.Sprintf("%s.backup_%s", filename, timestamp)
backupPath := filepath.Join(cp.dataDir, backupName)
// Copy file
configData, err := os.ReadFile(configPath)
if err != nil {
return fmt.Errorf("failed to read config file: %w", err)
}
if err := os.WriteFile(backupPath, configData, ConfigFilePermissions); err != nil {
return fmt.Errorf("failed to create backup: %w", err)
}
glog.V(1).Infof("Created backup of %s as %s", filename, backupName)
return nil
}
// RestoreConfig restores a configuration file from a backup
func (cp *ConfigPersistence) RestoreConfig(filename, backupName string) error {
if cp.dataDir == "" {
return fmt.Errorf("no data directory specified")
}
backupPath := filepath.Join(cp.dataDir, backupName)
if _, err := os.Stat(backupPath); os.IsNotExist(err) {
return fmt.Errorf("backup file does not exist: %s", backupName)
}
// Read backup file
backupData, err := os.ReadFile(backupPath)
if err != nil {
return fmt.Errorf("failed to read backup file: %w", err)
}
// Write to config file
configPath := filepath.Join(cp.dataDir, filename)
if err := os.WriteFile(configPath, backupData, ConfigFilePermissions); err != nil {
return fmt.Errorf("failed to restore config: %w", err)
}
glog.V(1).Infof("Restored %s from backup %s", filename, backupName)
return nil
}
// GetDataDir returns the data directory path
func (cp *ConfigPersistence) GetDataDir() string {
return cp.dataDir
}
// IsConfigured returns true if a data directory is configured
func (cp *ConfigPersistence) IsConfigured() bool {
return cp.dataDir != ""
}
// GetConfigInfo returns information about the configuration storage
func (cp *ConfigPersistence) GetConfigInfo() map[string]interface{} {
info := map[string]interface{}{
"data_dir_configured": cp.IsConfigured(),
"data_dir": cp.dataDir,
}
if cp.IsConfigured() {
// Check if data directory exists
if _, err := os.Stat(cp.dataDir); err == nil {
info["data_dir_exists"] = true
// List config files
configFiles, err := cp.ListConfigFiles()
if err == nil {
info["config_files"] = configFiles
}
} else {
info["data_dir_exists"] = false
}
}
return info
}
|
