1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/* Copyright (C) 2024 Rafael San José <[email protected]> |
4
|
|
|
* |
5
|
|
|
* This program is free software; you can redistribute it and/or modify |
6
|
|
|
* it under the terms of the GNU General Public License as published by |
7
|
|
|
* the Free Software Foundation; either version 3 of the License, or |
8
|
|
|
* any later version. |
9
|
|
|
* |
10
|
|
|
* This program is distributed in the hope that it will be useful, |
11
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
12
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13
|
|
|
* GNU General Public License for more details. |
14
|
|
|
* |
15
|
|
|
* You should have received a copy of the GNU General Public License |
16
|
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>. |
17
|
|
|
*/ |
18
|
|
|
|
19
|
|
|
namespace Alxarafe\Base; |
20
|
|
|
|
21
|
|
|
use Exception; |
22
|
|
|
use PDO; |
23
|
|
|
use stdClass; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* Manage the configuration file |
27
|
|
|
*/ |
28
|
|
|
abstract class Config |
29
|
|
|
{ |
30
|
|
|
/** |
31
|
|
|
* Configuration filename. |
32
|
|
|
*/ |
33
|
|
|
private const CONFIG_FILENAME = 'config.json'; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* Defines the configuration file structure |
37
|
|
|
*/ |
38
|
|
|
private const CONFIG_STRUCTURE = [ |
39
|
|
|
'main' => [ |
40
|
|
|
'path', // Path to the public folder (usually htdocs) |
41
|
|
|
'url', |
42
|
|
|
'data', // Route to the private folder that stores the documents. |
43
|
|
|
'theme', |
44
|
|
|
'language', |
45
|
|
|
], |
46
|
|
|
'db' => [ |
47
|
|
|
'type', |
48
|
|
|
'host', |
49
|
|
|
'user', |
50
|
|
|
'pass', |
51
|
|
|
'name', |
52
|
|
|
'port', |
53
|
|
|
'prefix', |
54
|
|
|
'charset', |
55
|
|
|
'collation', |
56
|
|
|
'encryption', // Pending review: If true, some database fields are encrypted. |
57
|
|
|
'encrypt_type', // Pending review: Encryption type ('0' if none, '1' if DES and '2' if AES) |
58
|
|
|
], |
59
|
|
|
'security' => [ |
60
|
|
|
'unique_id', // Unique identifier of the installation. |
61
|
|
|
'https', // If true, the use of https is forced (recommended) |
62
|
|
|
] |
63
|
|
|
]; |
64
|
|
|
|
65
|
|
|
/** |
66
|
|
|
* Contains configuration file information |
67
|
|
|
* |
68
|
|
|
* @var stdClass|null |
69
|
|
|
*/ |
70
|
|
|
private static ?stdClass $config = null; |
71
|
|
|
|
72
|
|
|
private static array $messages = []; |
73
|
|
|
|
74
|
|
|
/** |
75
|
|
|
* Checks if the connection to the database is possible with the parameters |
76
|
|
|
* defined in the configuration file. |
77
|
|
|
* |
78
|
|
|
* @param $data |
79
|
|
|
* @return bool |
80
|
|
|
*/ |
81
|
|
|
public static function checkDatabaseConnection($data): bool |
82
|
|
|
{ |
83
|
|
|
$dsn = "$data->type:host=$data->host;dbname=$data->name;charset=$data->charset"; |
84
|
|
|
try { |
85
|
|
|
$options = [ |
86
|
|
|
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, |
87
|
|
|
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, |
88
|
|
|
PDO::ATTR_EMULATE_PREPARES => false, |
89
|
|
|
]; |
90
|
|
|
|
91
|
|
|
$pdo = new PDO($dsn, $data->user, $data->pass, $options); |
92
|
|
|
|
93
|
|
|
// Run a simple query to verify the connection |
94
|
|
|
$pdo->query('SELECT 1'); |
95
|
|
|
} catch (Exception $e) { |
96
|
|
|
// Catch errors and return false if connection fails |
97
|
|
|
$message = $e->getMessage(); |
98
|
|
|
static::addNewMessage($message); |
99
|
|
|
error_log($message); |
100
|
|
|
dump(Config::getMessages()); |
101
|
|
|
return false; |
102
|
|
|
} |
103
|
|
|
return true; |
104
|
|
|
} |
105
|
|
|
|
106
|
|
|
/** |
107
|
|
|
* Adds a new message that will then be returned by getMessages. |
108
|
|
|
* |
109
|
|
|
* @param $message |
110
|
|
|
* @return void |
111
|
|
|
*/ |
112
|
|
|
private static function addNewMessage($message) |
113
|
|
|
{ |
114
|
|
|
static::$messages[] = $message; |
|
|
|
|
115
|
|
|
} |
116
|
|
|
|
117
|
|
|
/** |
118
|
|
|
* Gets the information defined in the configuration file. |
119
|
|
|
* To reload the configuration file, set $reload to true. |
120
|
|
|
* |
121
|
|
|
* @param bool $reload |
122
|
|
|
* @return stdClass|null |
123
|
|
|
*/ |
124
|
|
|
public static function getConfig(bool $reload = false): ?stdClass |
125
|
|
|
{ |
126
|
|
|
if ($reload || !isset(self::$config)) { |
127
|
|
|
self::$config = self::loadConfig($reload); |
128
|
|
|
} |
129
|
|
|
|
130
|
|
|
return self::$config; |
131
|
|
|
} |
132
|
|
|
|
133
|
|
|
/** |
134
|
|
|
* Add the configuration parameters received in $data in the configuration file. |
135
|
|
|
* |
136
|
|
|
* @param array $data |
137
|
|
|
* @return bool |
138
|
|
|
*/ |
139
|
|
|
public static function setConfig(array $data): bool |
140
|
|
|
{ |
141
|
|
|
/** |
142
|
|
|
* If the configuration file is empty, we add the parameters |
143
|
|
|
* that we can obtain at runtime (getDefaultMainFileInfo). |
144
|
|
|
*/ |
145
|
|
|
if (empty(self::$config)) { |
146
|
|
|
self::$config = new stdClass(); |
147
|
|
|
self::$config->main = static::getDefaultMainFileInfo(); |
148
|
|
|
} |
149
|
|
|
|
150
|
|
|
foreach (self::CONFIG_STRUCTURE as $section => $values) { |
151
|
|
|
foreach ($values as $key) { |
152
|
|
|
if (!isset($data[$section])) { |
153
|
|
|
error_log($section . ' is not defined!'); |
154
|
|
|
continue; |
155
|
|
|
} |
156
|
|
|
if (!isset($data[$section][$key])) { |
157
|
|
|
error_log($key . ' is not defined in ' . $section . '!'); |
158
|
|
|
continue; |
159
|
|
|
} |
160
|
|
|
if (!isset(self::$config->{$section})) { |
161
|
|
|
self::$config->{$section} = new stdClass(); |
162
|
|
|
} |
163
|
|
|
self::$config->{$section}->{$key} = $data[$section][$key]; |
164
|
|
|
} |
165
|
|
|
} |
166
|
|
|
|
167
|
|
|
/** |
168
|
|
|
* Save the configuration in the configuration file. |
169
|
|
|
*/ |
170
|
|
|
return self::saveConfig(); |
171
|
|
|
} |
172
|
|
|
|
173
|
|
|
/** |
174
|
|
|
* Returns a stdClass with the program configuration. |
175
|
|
|
* If the configuration file does not exist, is not accessible, or is not correct, returns null. |
176
|
|
|
* The configuration is loaded from the file only once and stored in a variable. You can set $reload |
177
|
|
|
* to true to force a reload of the configuration file. |
178
|
|
|
* |
179
|
|
|
* @param bool $reload |
180
|
|
|
* @return stdClass|null |
181
|
|
|
*/ |
182
|
|
|
private static function loadConfig(bool $reload = false): ?stdClass |
183
|
|
|
{ |
184
|
|
|
if (!$reload && isset(self::$config)) { |
185
|
|
|
return self::$config; |
186
|
|
|
} |
187
|
|
|
|
188
|
|
|
$filename = self::getConfigFilename(); |
189
|
|
|
if (!file_exists($filename)) { |
190
|
|
|
return null; |
191
|
|
|
} |
192
|
|
|
|
193
|
|
|
$config = file_get_contents($filename); |
194
|
|
|
if ($config === false) { |
195
|
|
|
return self::$config; |
196
|
|
|
} |
197
|
|
|
|
198
|
|
|
$result = json_decode($config); |
199
|
|
|
if (json_last_error() === JSON_ERROR_NONE) { |
200
|
|
|
self::$config = $result; |
201
|
|
|
} |
202
|
|
|
|
203
|
|
|
return $result; |
204
|
|
|
} |
205
|
|
|
|
206
|
|
|
/** |
207
|
|
|
* Returns the config.json complete path. |
208
|
|
|
* |
209
|
|
|
* @return string |
210
|
|
|
*/ |
211
|
|
|
private static function getConfigFilename(): string |
212
|
|
|
{ |
213
|
|
|
return realpath(constant('BASE_PATH') . '/..') . DIRECTORY_SEPARATOR . self::CONFIG_FILENAME; |
214
|
|
|
} |
215
|
|
|
|
216
|
|
|
/** |
217
|
|
|
* Those configuration parameters that we can obtain at run time, |
218
|
|
|
* or their default values, are obtained. |
219
|
|
|
* |
220
|
|
|
* @return stdClass |
221
|
|
|
*/ |
222
|
|
|
public static function getDefaultMainFileInfo(): stdClass |
223
|
|
|
{ |
224
|
|
|
$result = new stdClass(); |
225
|
|
|
$result->path = constant('BASE_PATH'); |
226
|
|
|
$result->url = constant('BASE_URL'); |
227
|
|
|
return $result; |
228
|
|
|
} |
229
|
|
|
|
230
|
|
|
/** |
231
|
|
|
* Updates the configuration file with the information it has in memory. |
232
|
|
|
* |
233
|
|
|
* @return bool |
234
|
|
|
*/ |
235
|
|
|
private static function saveConfig(): bool |
236
|
|
|
{ |
237
|
|
|
if (empty(self::$config)) { |
238
|
|
|
return true; |
239
|
|
|
} |
240
|
|
|
return file_put_contents(self::getConfigFilename(), json_encode(self::$config, JSON_PRETTY_PRINT)) !== false; |
241
|
|
|
} |
242
|
|
|
|
243
|
|
|
/** |
244
|
|
|
* Returns an array with the messages accumulated since the last call. |
245
|
|
|
* |
246
|
|
|
* @return array |
247
|
|
|
*/ |
248
|
|
|
public static function getMessages() |
249
|
|
|
{ |
250
|
|
|
$result = static::$messages; |
|
|
|
|
251
|
|
|
static::$messages = []; |
252
|
|
|
return $result; |
253
|
|
|
} |
254
|
|
|
} |
255
|
|
|
|