| 1 |
<?php |
| 2 |
|
| 3 |
namespace ImportWP\Common\Importer\State; |
| 4 |
|
| 5 |
use ImportWP\Common\Util\Logger; |
| 6 |
|
| 7 |
class ImporterState |
| 8 |
{ |
| 9 |
private $importer_id; |
| 10 |
private $user; |
| 11 |
protected $data; |
| 12 |
|
| 13 |
public function __construct($importer_id, $user) |
| 14 |
{ |
| 15 |
$this->importer_id = $importer_id; |
| 16 |
$this->user = $user; |
| 17 |
} |
| 18 |
|
| 19 |
public function init($session) |
| 20 |
{ |
| 21 |
$state = self::wait_for_lock_and_get_state($this->importer_id, $this->user, [ |
| 22 |
'id' => $session, |
| 23 |
'version' => 2, |
| 24 |
'status' => 'init', |
| 25 |
'section' => 'import', |
| 26 |
'message' => '', |
| 27 |
'progress' => [ |
| 28 |
'import' => [ |
| 29 |
'start' => 0, |
| 30 |
'end' => 0, |
| 31 |
'current_row' => 0, |
| 32 |
], |
| 33 |
'delete' => [ |
| 34 |
'start' => 0, |
| 35 |
'end' => 0, |
| 36 |
'current_row' => 0, |
| 37 |
] |
| 38 |
], |
| 39 |
'updated' => time(), |
| 40 |
'timestamp' => time(), |
| 41 |
'duration' => 0 |
| 42 |
]); |
| 43 |
|
| 44 |
if (!$state || !isset($state['status'])) { |
| 45 |
throw new \Exception("Invalid importer state"); |
| 46 |
} |
| 47 |
|
| 48 |
$this->populate($state); |
| 49 |
|
| 50 |
if (!$this->validate($session)) { |
| 51 |
throw new \Exception("Importer session has changed"); |
| 52 |
} |
| 53 |
} |
| 54 |
|
| 55 |
public function populate($state) |
| 56 |
{ |
| 57 |
foreach ($state as $name => $value) { |
| 58 |
$this->data[$name] = $value; |
| 59 |
} |
| 60 |
} |
| 61 |
|
| 62 |
public function has_status($status) |
| 63 |
{ |
| 64 |
if (!isset($this->data['status'])) { |
| 65 |
return false; |
| 66 |
} |
| 67 |
|
| 68 |
if (is_array($status)) { |
| 69 |
return in_array($this->data['status'], $status); |
| 70 |
} |
| 71 |
|
| 72 |
return $this->data['status'] == $status; |
| 73 |
} |
| 74 |
|
| 75 |
public function has_section($section) |
| 76 |
{ |
| 77 |
if (!isset($this->data['section'])) { |
| 78 |
return false; |
| 79 |
} |
| 80 |
|
| 81 |
if (is_array($section)) { |
| 82 |
return in_array($this->data['section'], $section); |
| 83 |
} |
| 84 |
|
| 85 |
return $this->data['section'] == $section; |
| 86 |
} |
| 87 |
|
| 88 |
public function get_session() |
| 89 |
{ |
| 90 |
return isset($this->data['id']) ? $this->data['id'] : false; |
| 91 |
} |
| 92 |
|
| 93 |
public function get_status() |
| 94 |
{ |
| 95 |
return isset($this->data['status']) ? $this->data['status'] : false; |
| 96 |
} |
| 97 |
|
| 98 |
public function validate($session_id) |
| 99 |
{ |
| 100 |
$valid = $this->has_status('init') || $this->get_session() == $session_id; |
| 101 |
if (!$valid) { |
| 102 |
Logger::write("state -invalid -check={$session_id} -current={$this->get_session()}"); |
| 103 |
} |
| 104 |
return $valid; |
| 105 |
} |
| 106 |
|
| 107 |
public function get_raw() |
| 108 |
{ |
| 109 |
return $this->data; |
| 110 |
} |
| 111 |
|
| 112 |
public function get_importer_id() |
| 113 |
{ |
| 114 |
return $this->importer_id; |
| 115 |
} |
| 116 |
|
| 117 |
public function get_section() |
| 118 |
{ |
| 119 |
if (!isset($this->data['section'])) { |
| 120 |
return false; |
| 121 |
} |
| 122 |
|
| 123 |
return $this->data['section']; |
| 124 |
} |
| 125 |
|
| 126 |
public function get_progress($section = null) |
| 127 |
{ |
| 128 |
if (is_null($section)) { |
| 129 |
$section = $this->get_section(); |
| 130 |
} |
| 131 |
|
| 132 |
return $this->data['progress'][$section]; |
| 133 |
} |
| 134 |
|
| 135 |
/** |
| 136 |
* Update live state data using callback |
| 137 |
* |
| 138 |
* @param Closure[array]:array $state |
| 139 |
* |
| 140 |
* @return $this |
| 141 |
*/ |
| 142 |
public function update($callback) |
| 143 |
{ |
| 144 |
$raw = self::wait_for_lock($this->importer_id, $this->user, function () use ($callback) { |
| 145 |
$state = self::get_state($this->importer_id); |
| 146 |
|
| 147 |
if (is_callable($callback)) { |
| 148 |
$state = call_user_func($callback, $state); |
| 149 |
} |
| 150 |
|
| 151 |
self::set_state($this->importer_id, $state); |
| 152 |
do_action('iwp/importer/status/save', $state); |
| 153 |
return $state; |
| 154 |
}); |
| 155 |
|
| 156 |
$this->populate($raw); |
| 157 |
|
| 158 |
return $this; |
| 159 |
} |
| 160 |
|
| 161 |
/** |
| 162 |
* Log fatal error |
| 163 |
* |
| 164 |
* @param \Exception $error |
| 165 |
* @return $this |
| 166 |
*/ |
| 167 |
public function error($error) |
| 168 |
{ |
| 169 |
return $this->update(function ($data) use ($error) { |
| 170 |
|
| 171 |
$data['status'] = 'error'; |
| 172 |
$data['message'] = $error->getMessage(); |
| 173 |
$data['duration'] = floatval($data['duration']) + Logger::timer(); |
| 174 |
|
| 175 |
return $data; |
| 176 |
}); |
| 177 |
} |
| 178 |
|
| 179 |
public static function wait_for_lock($id, $user, $callback) |
| 180 |
{ |
| 181 |
|
| 182 |
$start = microtime(true); |
| 183 |
|
| 184 |
do { |
| 185 |
list($has_lock, $result) = self::try_get_lock($id, $user, $callback); |
| 186 |
} while (!$has_lock && (microtime(true) - $start < 30)); |
| 187 |
|
| 188 |
if (!$has_lock) { |
| 189 |
throw new \Exception("Unable to get lock"); |
| 190 |
} |
| 191 |
|
| 192 |
return $result; |
| 193 |
} |
| 194 |
|
| 195 |
public static function wait_for_lock_and_get_state($id, $user, $default = false) |
| 196 |
{ |
| 197 |
return self::wait_for_lock($id, $user, function () use ($id, $default) { |
| 198 |
return self::get_state($id, $default); |
| 199 |
}); |
| 200 |
} |
| 201 |
|
| 202 |
/** |
| 203 |
* Get importer lock to update state |
| 204 |
* |
| 205 |
* @param mixed $user current id |
| 206 |
* @param mixed $callback Callback triggered when we have a lock. |
| 207 |
* @param int $wait_in_microseconds Time to wait in microseconds before retrying |
| 208 |
* |
| 209 |
* @return false|array |
| 210 |
*/ |
| 211 |
public static function try_get_lock($id, $user, $callback) |
| 212 |
{ |
| 213 |
$has_lock = self::get_lock($id, $user); |
| 214 |
if ($has_lock) { |
| 215 |
|
| 216 |
$result = $has_lock; |
| 217 |
|
| 218 |
if (is_callable($callback)) { |
| 219 |
$result = call_user_func($callback); |
| 220 |
} |
| 221 |
|
| 222 |
self::reset_lock($id); |
| 223 |
|
| 224 |
return [true, $result]; |
| 225 |
} else { |
| 226 |
|
| 227 |
return [false, null]; |
| 228 |
} |
| 229 |
} |
| 230 |
|
| 231 |
/** |
| 232 |
* Update importer state |
| 233 |
* |
| 234 |
* @param mixed $state State to overwrite |
| 235 |
* |
| 236 |
* @return void |
| 237 |
*/ |
| 238 |
public static function set_state($id, $state) |
| 239 |
{ |
| 240 |
$state['updated'] = time(); |
| 241 |
self::update_option('iwp_importer_state_' . $id, maybe_serialize($state)); |
| 242 |
} |
| 243 |
|
| 244 |
/** |
| 245 |
* Get last importer state |
| 246 |
* |
| 247 |
* @return array Importer state |
| 248 |
*/ |
| 249 |
public static function get_state($id, $default = false) |
| 250 |
{ |
| 251 |
$state = self::get_option('iwp_importer_state_' . $id); |
| 252 |
if (!$state) { |
| 253 |
$state = $default; |
| 254 |
if ($state !== false) { |
| 255 |
self::set_state($id, $state); |
| 256 |
} |
| 257 |
} |
| 258 |
|
| 259 |
return $state; |
| 260 |
} |
| 261 |
|
| 262 |
|
| 263 |
public static function get_lock($id, $user, $timeout_in_seconds = 10) |
| 264 |
{ |
| 265 |
/** |
| 266 |
* @var \WPDB $wpdb |
| 267 |
*/ |
| 268 |
global $wpdb; |
| 269 |
|
| 270 |
$lock_option_id = sprintf("iwp_importer_lock_%d", $id); |
| 271 |
$existing = self::get_option($lock_option_id, false); |
| 272 |
|
| 273 |
if ($existing !== false) { |
| 274 |
if (is_multisite()) { |
| 275 |
$query = $wpdb->prepare( |
| 276 |
"UPDATE {$wpdb->sitemeta} SET meta_value=%s WHERE site_id=%d AND meta_key=%s AND meta_value=''", |
| 277 |
$user, |
| 278 |
$wpdb->siteid, |
| 279 |
$lock_option_id |
| 280 |
); |
| 281 |
} else { |
| 282 |
$query = $wpdb->prepare( |
| 283 |
"UPDATE {$wpdb->options} SET option_value=%s WHERE option_name=%s AND option_value=''", |
| 284 |
$user, |
| 285 |
$lock_option_id |
| 286 |
); |
| 287 |
} |
| 288 |
} else { |
| 289 |
return self::update_option($lock_option_id, ''); |
| 290 |
} |
| 291 |
|
| 292 |
$result = $wpdb->query($query); |
| 293 |
|
| 294 |
if ($result) { |
| 295 |
|
| 296 |
self::touch_lock($id); |
| 297 |
} else { |
| 298 |
|
| 299 |
// Clear lock if timestamp is greater than timeout. |
| 300 |
$last_locked_time = (int)self::get_option('iwp_importer_lock_timestamp_' . $id, 0); |
| 301 |
if (current_time('timestamp') > $last_locked_time + $timeout_in_seconds) { |
| 302 |
self::reset_lock($id); |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
return $result; |
| 307 |
} |
| 308 |
|
| 309 |
public static function reset_lock($id) |
| 310 |
{ |
| 311 |
self::update_option('iwp_importer_lock_' . $id); |
| 312 |
self::touch_lock($id); |
| 313 |
} |
| 314 |
|
| 315 |
public static function touch_lock($id) |
| 316 |
{ |
| 317 |
self::update_option('iwp_importer_lock_timestamp_' . $id, current_time('timestamp')); |
| 318 |
} |
| 319 |
|
| 320 |
public static function get_option($key, $default = false) |
| 321 |
{ |
| 322 |
/** |
| 323 |
* @var \WPDB $wpdb |
| 324 |
*/ |
| 325 |
global $wpdb; |
| 326 |
|
| 327 |
if (is_multisite()) { |
| 328 |
$query = $wpdb->prepare("SELECT meta_id as id, meta_value as data FROM {$wpdb->sitemeta} WHERE site_id=%s AND meta_key=%s LIMIT 1", [$wpdb->siteid, $key]); |
| 329 |
} else { |
| 330 |
$query = $wpdb->prepare("SELECT option_id as id, option_value as data FROM {$wpdb->options} WHERE option_name=%s LIMIT 1", [$key]); |
| 331 |
} |
| 332 |
|
| 333 |
$result = $wpdb->get_row($query, ARRAY_A); |
| 334 |
if (!$result) { |
| 335 |
return $default; |
| 336 |
} |
| 337 |
|
| 338 |
if (is_serialized($result['data'])) { |
| 339 |
return unserialize($result['data']); |
| 340 |
} |
| 341 |
|
| 342 |
return $result['data']; |
| 343 |
} |
| 344 |
|
| 345 |
public static function update_option($key, $value = '') |
| 346 |
{ |
| 347 |
/** |
| 348 |
* @var \WPDB $wpdb |
| 349 |
*/ |
| 350 |
global $wpdb; |
| 351 |
|
| 352 |
$result = self::get_option($key); |
| 353 |
|
| 354 |
if (is_multisite()) { |
| 355 |
|
| 356 |
if ($result !== false) { |
| 357 |
$result = $wpdb->update($wpdb->sitemeta, ['meta_value' => $value], ['meta_key' => $key, 'site_id' => $wpdb->siteid], ['%s'], ['%s', '%s']); |
| 358 |
} else { |
| 359 |
$result = $wpdb->insert($wpdb->sitemeta, ['meta_value' => $value, 'meta_key' => $key, 'site_id' => $wpdb->siteid], ['%s', '%s', '%s']); |
| 360 |
} |
| 361 |
} else { |
| 362 |
if ($result !== false) { |
| 363 |
$result = $wpdb->update($wpdb->options, ['option_value' => $value], ['option_name' => $key], ['%s'], ['%s']); |
| 364 |
} else { |
| 365 |
$result = $wpdb->insert($wpdb->options, ['option_value' => $value, 'option_name' => $key], ['%s', '%s']); |
| 366 |
} |
| 367 |
} |
| 368 |
|
| 369 |
return $result; |
| 370 |
} |
| 371 |
|
| 372 |
public static function clear_options($id) |
| 373 |
{ |
| 374 |
|
| 375 |
// clear existing |
| 376 |
delete_site_option('iwp_importer_config_' . $id); |
| 377 |
delete_site_option('iwp_importer_state_' . $id); |
| 378 |
delete_site_option('iwp_importer_lock_' . $id); |
| 379 |
delete_site_option('iwp_importer_lock_timestamp_' . $id); |
| 380 |
|
| 381 |
/** |
| 382 |
* @var \WPDB $wpdb |
| 383 |
*/ |
| 384 |
global $wpdb; |
| 385 |
|
| 386 |
if (is_multisite()) { |
| 387 |
$wpdb->query("DELETE FROM {$wpdb->sitemeta} WHERE meta_key LIKE 'iwp\_importer\_state\_" . $id . "\_%'"); |
| 388 |
} else { |
| 389 |
$wpdb->query("DELETE FROM {$wpdb->options} WHERE option_name LIKE 'iwp\_importer\_state\_" . $id . "\_%'"); |
| 390 |
} |
| 391 |
} |
| 392 |
} |
| 393 |
|
