| 1 |
<?php |
| 2 |
/** |
| 3 |
* WP-Config Security Class |
| 4 |
* |
| 5 |
* Manages wp-config.php security constants with MULTIPLE safety checks |
| 6 |
* Uses comment/uncomment strategy to handle existing constants |
| 7 |
* |
| 8 |
* @package Vigilante |
| 9 |
*/ |
| 10 |
|
| 11 |
// Prevent direct access |
| 12 |
if ( ! defined( 'ABSPATH' ) ) { |
| 13 |
exit; |
| 14 |
} |
| 15 |
|
| 16 |
/** |
| 17 |
* Class Vigilante_Wpconfig_Security |
| 18 |
* |
| 19 |
* Applies security constants to wp-config.php |
| 20 |
*/ |
| 21 |
class Vigilante_Wpconfig_Security { |
| 22 |
|
| 23 |
/** |
| 24 |
* Settings instance |
| 25 |
* |
| 26 |
* @var Vigilante_Settings |
| 27 |
*/ |
| 28 |
private $settings; |
| 29 |
|
| 30 |
/** |
| 31 |
* Security options |
| 32 |
* |
| 33 |
* @var array |
| 34 |
*/ |
| 35 |
private $options; |
| 36 |
|
| 37 |
/** |
| 38 |
* Path to wp-config.php |
| 39 |
* |
| 40 |
* @var string |
| 41 |
*/ |
| 42 |
private $wpconfig_path; |
| 43 |
|
| 44 |
/** |
| 45 |
* Marker for our constants |
| 46 |
*/ |
| 47 |
const MARKER_START = '/* BEGIN Vigilante Security Constants */'; |
| 48 |
const MARKER_END = '/* END Vigilante Security Constants */'; |
| 49 |
|
| 50 |
/** |
| 51 |
* Marker for commented original lines |
| 52 |
*/ |
| 53 |
const ORIGINAL_MARKER = '// [VIGILANTE_ORIGINAL] '; |
| 54 |
|
| 55 |
/** |
| 56 |
* Old plugin markers to clean |
| 57 |
*/ |
| 58 |
const OLD_MARKER_START = '/* BEGIN AyudaWP Security Constants */'; |
| 59 |
const OLD_MARKER_END = '/* END AyudaWP Security Constants */'; |
| 60 |
|
| 61 |
/** |
| 62 |
* Minimum valid wp-config.php size in bytes |
| 63 |
*/ |
| 64 |
const MIN_CONFIG_SIZE = 1000; |
| 65 |
|
| 66 |
/** |
| 67 |
* Constants managed by this plugin |
| 68 |
* |
| 69 |
* @var array |
| 70 |
*/ |
| 71 |
private $managed_constants = array( |
| 72 |
'DISALLOW_FILE_EDIT', |
| 73 |
'DISALLOW_FILE_MODS', |
| 74 |
'FORCE_SSL_ADMIN', |
| 75 |
'FORCE_SSL_LOGIN', |
| 76 |
'WP_DEBUG', |
| 77 |
'WP_DEBUG_LOG', |
| 78 |
'WP_DEBUG_DISPLAY', |
| 79 |
'SCRIPT_DEBUG', |
| 80 |
'DISABLE_WP_CRON', |
| 81 |
); |
| 82 |
|
| 83 |
/** |
| 84 |
* Constructor |
| 85 |
* |
| 86 |
* @param Vigilante_Settings $settings Settings instance. |
| 87 |
*/ |
| 88 |
public function __construct( $settings ) { |
| 89 |
$this->settings = $settings; |
| 90 |
$this->options = $settings->get_section( 'wp_hardening' ); |
| 91 |
$this->wpconfig_path = ABSPATH . 'wp-config.php'; |
| 92 |
} |
| 93 |
|
| 94 |
/** |
| 95 |
* Apply security constants to wp-config.php |
| 96 |
* |
| 97 |
* @return bool|WP_Error |
| 98 |
*/ |
| 99 |
public function apply_security_constants() { |
| 100 |
// Safety check 1: File must exist and be writable |
| 101 |
if ( ! $this->is_wpconfig_writable() ) { |
| 102 |
return new WP_Error( 'not_writable', __( 'wp-config.php is not writable', 'vigilante' ) ); |
| 103 |
} |
| 104 |
|
| 105 |
// Safety check 2: Create backup BEFORE any modification |
| 106 |
$backup_result = $this->create_backup(); |
| 107 |
if ( is_wp_error( $backup_result ) ) { |
| 108 |
return $backup_result; |
| 109 |
} |
| 110 |
|
| 111 |
// First clean up old plugin constants |
| 112 |
$this->remove_old_constants(); |
| 113 |
|
| 114 |
// Restore any previously commented constants (clean slate for upgrades) |
| 115 |
// This ensures constants no longer managed by current version get uncommented |
| 116 |
$this->uncomment_original_constants(); |
| 117 |
|
| 118 |
// Comment out existing managed constants |
| 119 |
$comment_result = $this->comment_existing_constants(); |
| 120 |
if ( is_wp_error( $comment_result ) ) { |
| 121 |
return $comment_result; |
| 122 |
} |
| 123 |
|
| 124 |
// Generate and write our constants block |
| 125 |
$constants = $this->generate_constants(); |
| 126 |
$result = $this->write_constants( $constants ); |
| 127 |
|
| 128 |
// Regenerate critical file baseline so the integrity scan does not |
| 129 |
// flag our own modifications as unauthorized changes. |
| 130 |
if ( true === $result ) { |
| 131 |
/** |
| 132 |
* Fires after Vigilante successfully writes to wp-config.php. |
| 133 |
* Used by the file integrity module to update the baseline hash. |
| 134 |
*/ |
| 135 |
do_action( 'vigilante_critical_file_written', 'wp-config.php' ); |
| 136 |
} |
| 137 |
|
| 138 |
return $result; |
| 139 |
} |
| 140 |
|
| 141 |
/** |
| 142 |
* Create a backup of wp-config.php before modification |
| 143 |
* |
| 144 |
* @return bool|WP_Error |
| 145 |
*/ |
| 146 |
private function create_backup() { |
| 147 |
if ( ! file_exists( $this->wpconfig_path ) ) { |
| 148 |
return new WP_Error( 'no_config', __( 'wp-config.php does not exist', 'vigilante' ) ); |
| 149 |
} |
| 150 |
|
| 151 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 152 |
|
| 153 |
if ( false === $content || strlen( $content ) < self::MIN_CONFIG_SIZE ) { |
| 154 |
return new WP_Error( 'invalid_config', __( 'wp-config.php appears invalid or too small', 'vigilante' ) ); |
| 155 |
} |
| 156 |
|
| 157 |
// Validate it looks like a real wp-config.php |
| 158 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 159 |
return new WP_Error( 'invalid_config', __( 'wp-config.php does not appear to be a valid WordPress configuration file', 'vigilante' ) ); |
| 160 |
} |
| 161 |
|
| 162 |
// Store the backup in a private database option, never as a file under |
| 163 |
// the web root. wp-config.php holds DB credentials and salts; a file in |
| 164 |
// wp-content could be served by a misconfigured server. The option is |
| 165 |
// not reachable over HTTP and is not autoloaded. |
| 166 |
$stored = update_option( |
| 167 |
'vigilante_wpconfig_backup', |
| 168 |
array( |
| 169 |
'content' => $content, |
| 170 |
'time' => time(), |
| 171 |
), |
| 172 |
false |
| 173 |
); |
| 174 |
|
| 175 |
// update_option() returns false both on failure and when the value is |
| 176 |
// unchanged; only treat it as an error if the content was not stored. |
| 177 |
if ( false === $stored && $content !== $this->get_wpconfig_backup_content() ) { |
| 178 |
return new WP_Error( 'backup_failed', __( 'Could not create wp-config.php backup', 'vigilante' ) ); |
| 179 |
} |
| 180 |
|
| 181 |
return true; |
| 182 |
} |
| 183 |
|
| 184 |
/** |
| 185 |
* Get the stored wp-config.php backup content, or '' if none. |
| 186 |
* |
| 187 |
* @return string |
| 188 |
*/ |
| 189 |
private function get_wpconfig_backup_content() { |
| 190 |
$backup = get_option( 'vigilante_wpconfig_backup' ); |
| 191 |
return ( is_array( $backup ) && isset( $backup['content'] ) ) ? (string) $backup['content'] : ''; |
| 192 |
} |
| 193 |
|
| 194 |
/** |
| 195 |
* Read file directly without WP_Filesystem (more reliable) |
| 196 |
* |
| 197 |
* @param string $path File path. |
| 198 |
* @return string|false |
| 199 |
*/ |
| 200 |
private function read_file_directly( $path ) { |
| 201 |
if ( ! file_exists( $path ) || ! is_readable( $path ) ) { |
| 202 |
return false; |
| 203 |
} |
| 204 |
return file_get_contents( $path ); // phpcs:ignore |
| 205 |
} |
| 206 |
|
| 207 |
/** |
| 208 |
* Validate that content looks like a real wp-config.php |
| 209 |
* |
| 210 |
* @param string $content File content. |
| 211 |
* @return bool |
| 212 |
*/ |
| 213 |
private function validate_wpconfig_content( $content ) { |
| 214 |
// Must contain PHP opening tag |
| 215 |
if ( strpos( $content, '<?php' ) === false ) { |
| 216 |
return false; |
| 217 |
} |
| 218 |
|
| 219 |
// Must contain database configuration |
| 220 |
if ( strpos( $content, 'DB_NAME' ) === false ) { |
| 221 |
return false; |
| 222 |
} |
| 223 |
|
| 224 |
if ( strpos( $content, 'DB_USER' ) === false ) { |
| 225 |
return false; |
| 226 |
} |
| 227 |
|
| 228 |
if ( strpos( $content, 'DB_PASSWORD' ) === false ) { |
| 229 |
return false; |
| 230 |
} |
| 231 |
|
| 232 |
// Must contain table prefix |
| 233 |
if ( strpos( $content, '$table_prefix' ) === false ) { |
| 234 |
return false; |
| 235 |
} |
| 236 |
|
| 237 |
return true; |
| 238 |
} |
| 239 |
|
| 240 |
/** |
| 241 |
* Comment out existing managed constants in wp-config.php |
| 242 |
* |
| 243 |
* @return bool|WP_Error |
| 244 |
*/ |
| 245 |
private function comment_existing_constants() { |
| 246 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 247 |
|
| 248 |
if ( false === $content || ! $this->validate_wpconfig_content( $content ) ) { |
| 249 |
return new WP_Error( 'read_failed', __( 'Could not read wp-config.php', 'vigilante' ) ); |
| 250 |
} |
| 251 |
|
| 252 |
$modified = false; |
| 253 |
|
| 254 |
foreach ( $this->managed_constants as $constant ) { |
| 255 |
// Pattern to match define statements for this constant |
| 256 |
// Matches: define( 'CONSTANT', value ); or define('CONSTANT', value); |
| 257 |
// Does NOT match already commented lines (commented lines have // prefix before define) |
| 258 |
$pattern = '/^(\s*)(define\s*\(\s*[\'"]' . preg_quote( $constant, '/' ) . '[\'"]\s*,\s*[^)]+\)\s*;)/m'; |
| 259 |
|
| 260 |
// Loop to comment ALL occurrences, not just the first |
| 261 |
// wp-config.php files may have duplicate defines (e.g. multiple WP_DEBUG) |
| 262 |
$safety = 0; |
| 263 |
while ( preg_match( $pattern, $content, $matches ) && $safety < 20 ) { |
| 264 |
$safety++; |
| 265 |
$full_line = $matches[0]; |
| 266 |
|
| 267 |
// Already commented by us — no more uncommented matches possible |
| 268 |
if ( strpos( $full_line, self::ORIGINAL_MARKER ) !== false ) { |
| 269 |
break; |
| 270 |
} |
| 271 |
|
| 272 |
// Check if this line is inside our Vigilante block (skip it) |
| 273 |
$marker_pos = strpos( $content, self::MARKER_START ); |
| 274 |
if ( $marker_pos !== false ) { |
| 275 |
$line_pos = strpos( $content, $full_line ); |
| 276 |
$end_marker_pos = strpos( $content, self::MARKER_END ); |
| 277 |
if ( $line_pos > $marker_pos && $line_pos < $end_marker_pos ) { |
| 278 |
break; // Inside our block, stop processing this constant |
| 279 |
} |
| 280 |
} |
| 281 |
|
| 282 |
// Comment out this occurrence |
| 283 |
$replacement = $matches[1] . self::ORIGINAL_MARKER . $matches[2]; |
| 284 |
$content = preg_replace( $pattern, $replacement, $content, 1 ); |
| 285 |
$modified = true; |
| 286 |
} |
| 287 |
} |
| 288 |
|
| 289 |
if ( $modified ) { |
| 290 |
// Validate BEFORE writing |
| 291 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 292 |
return new WP_Error( 'invalid_after_comment', __( 'wp-config.php would be invalid after commenting constants', 'vigilante' ) ); |
| 293 |
} |
| 294 |
|
| 295 |
if ( ! $this->write_file_directly( $this->wpconfig_path, $content ) ) { |
| 296 |
return new WP_Error( 'write_failed', __( 'Could not write to wp-config.php', 'vigilante' ) ); |
| 297 |
} |
| 298 |
} |
| 299 |
|
| 300 |
return true; |
| 301 |
} |
| 302 |
|
| 303 |
/** |
| 304 |
* Uncomment original constants that were commented by us |
| 305 |
* |
| 306 |
* @return bool |
| 307 |
*/ |
| 308 |
private function uncomment_original_constants() { |
| 309 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 310 |
|
| 311 |
if ( false === $content ) { |
| 312 |
return false; |
| 313 |
} |
| 314 |
|
| 315 |
// Find and uncomment lines marked with our original marker |
| 316 |
$pattern = '/^(\s*)' . preg_quote( self::ORIGINAL_MARKER, '/' ) . '(.+)$/m'; |
| 317 |
|
| 318 |
if ( preg_match( $pattern, $content ) ) { |
| 319 |
$content = preg_replace( $pattern, '$1$2', $content ); |
| 320 |
|
| 321 |
// Validate BEFORE writing |
| 322 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 323 |
return false; |
| 324 |
} |
| 325 |
|
| 326 |
return $this->write_file_directly( $this->wpconfig_path, $content ); |
| 327 |
} |
| 328 |
|
| 329 |
return true; |
| 330 |
} |
| 331 |
|
| 332 |
/** |
| 333 |
* Remove old Easy Vigilante constants from wp-config.php |
| 334 |
* |
| 335 |
* @return bool |
| 336 |
*/ |
| 337 |
public function remove_old_constants() { |
| 338 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 339 |
|
| 340 |
if ( false === $content || ! $this->validate_wpconfig_content( $content ) ) { |
| 341 |
return false; |
| 342 |
} |
| 343 |
|
| 344 |
$modified = false; |
| 345 |
|
| 346 |
// Remove old AyudaWP Security Constants block |
| 347 |
$pattern = '/' . preg_quote( self::OLD_MARKER_START, '/' ) . '.*?' . preg_quote( self::OLD_MARKER_END, '/' ) . '\s*/s'; |
| 348 |
if ( preg_match( $pattern, $content ) ) { |
| 349 |
$content = preg_replace( $pattern, '', $content ); |
| 350 |
$modified = true; |
| 351 |
} |
| 352 |
|
| 353 |
if ( $modified ) { |
| 354 |
// Validate BEFORE writing |
| 355 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 356 |
return false; |
| 357 |
} |
| 358 |
return $this->write_file_directly( $this->wpconfig_path, $content ); |
| 359 |
} |
| 360 |
|
| 361 |
return true; |
| 362 |
} |
| 363 |
|
| 364 |
/** |
| 365 |
* Remove our security constants from wp-config.php and restore originals |
| 366 |
* |
| 367 |
* @return bool |
| 368 |
*/ |
| 369 |
public function remove_constants() { |
| 370 |
if ( ! file_exists( $this->wpconfig_path ) ) { |
| 371 |
return true; |
| 372 |
} |
| 373 |
|
| 374 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 375 |
|
| 376 |
if ( false === $content ) { |
| 377 |
return false; |
| 378 |
} |
| 379 |
|
| 380 |
// If our markers don't exist, just try to uncomment originals |
| 381 |
if ( strpos( $content, self::MARKER_START ) === false ) { |
| 382 |
return $this->uncomment_original_constants(); |
| 383 |
} |
| 384 |
|
| 385 |
// Validate before modification |
| 386 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 387 |
return false; |
| 388 |
} |
| 389 |
|
| 390 |
// Remove our section |
| 391 |
$pattern = '/' . preg_quote( self::MARKER_START, '/' ) . '.*?' . preg_quote( self::MARKER_END, '/' ) . '\s*/s'; |
| 392 |
$new_content = preg_replace( $pattern, '', $content ); |
| 393 |
|
| 394 |
// CRITICAL: Validate result BEFORE writing |
| 395 |
if ( ! $this->validate_wpconfig_content( $new_content ) ) { |
| 396 |
// Something went wrong, don't write |
| 397 |
return false; |
| 398 |
} |
| 399 |
|
| 400 |
// Clean up multiple empty lines |
| 401 |
$new_content = preg_replace( '/\n{3,}/', "\n\n", $new_content ); |
| 402 |
|
| 403 |
// Write the file without our block |
| 404 |
if ( ! $this->write_file_directly( $this->wpconfig_path, $new_content ) ) { |
| 405 |
return false; |
| 406 |
} |
| 407 |
|
| 408 |
// Now uncomment the original constants |
| 409 |
return $this->uncomment_original_constants(); |
| 410 |
} |
| 411 |
|
| 412 |
/** |
| 413 |
* Generate security constants block (without conditional checks) |
| 414 |
* |
| 415 |
* @return string |
| 416 |
*/ |
| 417 |
public function generate_constants() { |
| 418 |
$constants = array(); |
| 419 |
|
| 420 |
$constants[] = self::MARKER_START; |
| 421 |
$constants[] = '// Vigilante for WordPress - v' . VIGILANTE_VERSION; |
| 422 |
$constants[] = '// Generated: ' . gmdate( 'Y-m-d H:i:s' ) . ' UTC'; |
| 423 |
$constants[] = '// Note: Original constants (if any) are commented with [VIGILANTE_ORIGINAL] marker'; |
| 424 |
$constants[] = '// Each define() is wrapped in "if ( ! defined() )" so the block is safe on'; |
| 425 |
$constants[] = '// non-standard setups that pre-define WordPress constants before wp-config.php'; |
| 426 |
$constants[] = '// is parsed (would otherwise trigger a "Constant already defined" fatal).'; |
| 427 |
$constants[] = ''; |
| 428 |
|
| 429 |
// File editing/modification |
| 430 |
if ( ! empty( $this->options['disallow_file_edit'] ) ) { |
| 431 |
$constants[] = "// Disable file editing in admin"; |
| 432 |
$constants[] = "if ( ! defined( 'DISALLOW_FILE_EDIT' ) ) { define( 'DISALLOW_FILE_EDIT', true ); }"; |
| 433 |
$constants[] = ''; |
| 434 |
} |
| 435 |
|
| 436 |
if ( ! empty( $this->options['disallow_file_mods'] ) ) { |
| 437 |
$constants[] = "// Disable file modifications (plugins/themes install/update)"; |
| 438 |
$constants[] = "if ( ! defined( 'DISALLOW_FILE_MODS' ) ) { define( 'DISALLOW_FILE_MODS', true ); }"; |
| 439 |
$constants[] = ''; |
| 440 |
} |
| 441 |
|
| 442 |
// SSL settings |
| 443 |
if ( ! empty( $this->options['force_ssl_admin'] ) ) { |
| 444 |
$constants[] = "// Force SSL for admin"; |
| 445 |
$constants[] = "if ( ! defined( 'FORCE_SSL_ADMIN' ) ) { define( 'FORCE_SSL_ADMIN', true ); }"; |
| 446 |
$constants[] = ''; |
| 447 |
} |
| 448 |
|
| 449 |
if ( ! empty( $this->options['force_ssl_login'] ) ) { |
| 450 |
$constants[] = "// Force SSL for login"; |
| 451 |
$constants[] = "if ( ! defined( 'FORCE_SSL_LOGIN' ) ) { define( 'FORCE_SSL_LOGIN', true ); }"; |
| 452 |
$constants[] = ''; |
| 453 |
} |
| 454 |
|
| 455 |
// Debug settings - generate when "Hide PHP errors from visitors" is unchecked (development mode) |
| 456 |
if ( empty( $this->options['wp_debug'] ) ) { |
| 457 |
$constants[] = "// Debug settings (enabled for development)"; |
| 458 |
$constants[] = "if ( ! defined( 'WP_DEBUG' ) ) { define( 'WP_DEBUG', true ); }"; |
| 459 |
$constants[] = "if ( ! defined( 'WP_DEBUG_LOG' ) ) { define( 'WP_DEBUG_LOG', true ); }"; |
| 460 |
$constants[] = "if ( ! defined( 'WP_DEBUG_DISPLAY' ) ) { define( 'WP_DEBUG_DISPLAY', false ); }"; |
| 461 |
$constants[] = "if ( ! defined( 'SCRIPT_DEBUG' ) ) { define( 'SCRIPT_DEBUG', false ); }"; |
| 462 |
$constants[] = ''; |
| 463 |
} else { |
| 464 |
$constants[] = "// Debug disabled (production)"; |
| 465 |
$constants[] = "if ( ! defined( 'WP_DEBUG' ) ) { define( 'WP_DEBUG', false ); }"; |
| 466 |
$constants[] = ''; |
| 467 |
} |
| 468 |
|
| 469 |
// Disable WordPress's built-in pseudo-cron (page-view trigger). Pairs with the |
| 470 |
// .htaccess block from firewall.protect_wp_cron — this constant alone does NOT |
| 471 |
// block external HTTP access to wp-cron.php, only the auto-spawn from front-end |
| 472 |
// page views. Both pieces are needed for full coverage; both require a real |
| 473 |
// server-side cron job calling wp-cron.php from CLI. |
| 474 |
if ( ! empty( $this->options['disable_wp_cron'] ) ) { |
| 475 |
$constants[] = "// Disable WordPress pseudo-cron (use real server-side cron instead)"; |
| 476 |
$constants[] = "if ( ! defined( 'DISABLE_WP_CRON' ) ) { define( 'DISABLE_WP_CRON', true ); }"; |
| 477 |
$constants[] = ''; |
| 478 |
} |
| 479 |
|
| 480 |
$constants[] = self::MARKER_END; |
| 481 |
$constants[] = ''; |
| 482 |
|
| 483 |
return implode( "\n", $constants ); |
| 484 |
} |
| 485 |
|
| 486 |
/** |
| 487 |
* Write constants to wp-config.php with multiple safety checks |
| 488 |
* |
| 489 |
* @param string $constants Constants block to write. |
| 490 |
* @return bool|WP_Error |
| 491 |
*/ |
| 492 |
private function write_constants( $constants ) { |
| 493 |
// SAFETY CHECK 1: Read file directly (not via WP_Filesystem which can fail) |
| 494 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 495 |
|
| 496 |
// SAFETY CHECK 2: Verify we got valid content |
| 497 |
if ( false === $content || strlen( $content ) < self::MIN_CONFIG_SIZE ) { |
| 498 |
return new WP_Error( 'read_failed', __( 'Could not read wp-config.php or file is too small', 'vigilante' ) ); |
| 499 |
} |
| 500 |
|
| 501 |
// SAFETY CHECK 3: Validate it's a real wp-config.php |
| 502 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 503 |
return new WP_Error( 'invalid_config', __( 'wp-config.php does not appear to be valid', 'vigilante' ) ); |
| 504 |
} |
| 505 |
|
| 506 |
// Store original for comparison |
| 507 |
$original_content = $content; |
| 508 |
|
| 509 |
// Remove existing Vigilante constants block |
| 510 |
$pattern = '/' . preg_quote( self::MARKER_START, '/' ) . '.*?' . preg_quote( self::MARKER_END, '/' ) . '\s*/s'; |
| 511 |
$content = preg_replace( $pattern, '', $content ); |
| 512 |
|
| 513 |
// Remove old plugin constants block |
| 514 |
$old_pattern = '/' . preg_quote( self::OLD_MARKER_START, '/' ) . '.*?' . preg_quote( self::OLD_MARKER_END, '/' ) . '\s*/s'; |
| 515 |
$content = preg_replace( $old_pattern, '', $content ); |
| 516 |
|
| 517 |
// Clean up multiple empty lines |
| 518 |
$content = preg_replace( '/\n{3,}/', "\n\n", $content ); |
| 519 |
|
| 520 |
// SAFETY CHECK 4: Content should still be valid after removal |
| 521 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 522 |
return new WP_Error( 'invalid_after_clean', __( 'wp-config.php became invalid after cleanup', 'vigilante' ) ); |
| 523 |
} |
| 524 |
|
| 525 |
// Find the best place to insert constants |
| 526 |
$inserted = false; |
| 527 |
|
| 528 |
// Method 1: Before "That's all, stop editing" comment |
| 529 |
// This comment may be translated in localized wp-config files, so we use a broad pattern |
| 530 |
// that matches the block comment immediately before the ABSPATH section. |
| 531 |
// Known variants: "That's all, stop editing!", "C'est tout, ne touchez plus à ce qui suit", |
| 532 |
// "Das war's, Schluss mit dem Editieren!", "Ya está. ¡Deja de editar!", etc. |
| 533 |
$stop_editing_patterns = array( |
| 534 |
// English (default) |
| 535 |
"/(\/\*[^*]*That's all,?\s*stop editing[^*]*\*\/)/i", |
| 536 |
// Broad match: any block comment on its own line(s) immediately before "Absolute path" |
| 537 |
// This catches translated versions without needing every language |
| 538 |
'/(\n\/\*[^\n*]{5,80}\*\/)\s*\n+\s*\/\*\*\s*Absolute path/i', |
| 539 |
); |
| 540 |
|
| 541 |
foreach ( $stop_editing_patterns as $pattern ) { |
| 542 |
if ( preg_match( $pattern, $content, $matches ) ) { |
| 543 |
$content = str_replace( |
| 544 |
$matches[1], |
| 545 |
$constants . "\n\n" . $matches[1], |
| 546 |
$content |
| 547 |
); |
| 548 |
$inserted = true; |
| 549 |
break; |
| 550 |
} |
| 551 |
} |
| 552 |
|
| 553 |
// Method 2: Before "/** Absolute path to the WordPress directory" PHPDoc comment |
| 554 |
// This is a code comment in wp-config-sample.php and is NOT translatable |
| 555 |
if ( ! $inserted && preg_match( '/(\/\*\*\s*Absolute path to the WordPress directory)/i', $content, $matches ) ) { |
| 556 |
$content = str_replace( |
| 557 |
$matches[1], |
| 558 |
$constants . "\n\n" . $matches[1], |
| 559 |
$content |
| 560 |
); |
| 561 |
$inserted = true; |
| 562 |
} |
| 563 |
|
| 564 |
// Method 3: Before ABSPATH definition (language-independent) |
| 565 |
if ( ! $inserted && preg_match( '/(if\s*\(\s*!\s*defined\s*\(\s*[\'"]ABSPATH[\'"]\s*\)\s*\))/i', $content, $matches ) ) { |
| 566 |
$content = str_replace( |
| 567 |
$matches[1], |
| 568 |
$constants . "\n\n" . $matches[1], |
| 569 |
$content |
| 570 |
); |
| 571 |
$inserted = true; |
| 572 |
} |
| 573 |
|
| 574 |
// Method 4: Before require_once wp-settings.php (language-independent) |
| 575 |
if ( ! $inserted && preg_match( '/(require[_once\s\(]+[\'"]?.*wp-settings\.php[\'"]?\s*\)?;)/i', $content, $matches ) ) { |
| 576 |
$content = str_replace( |
| 577 |
$matches[1], |
| 578 |
$constants . "\n\n" . $matches[1], |
| 579 |
$content |
| 580 |
); |
| 581 |
$inserted = true; |
| 582 |
} |
| 583 |
|
| 584 |
// Method 5: After $table_prefix (safest fallback) |
| 585 |
if ( ! $inserted && preg_match( '/(\$table_prefix\s*=\s*[\'"][^\'"]+[\'"]\s*;)/i', $content, $matches ) ) { |
| 586 |
$content = str_replace( |
| 587 |
$matches[1], |
| 588 |
$matches[1] . "\n\n" . $constants, |
| 589 |
$content |
| 590 |
); |
| 591 |
$inserted = true; |
| 592 |
} |
| 593 |
|
| 594 |
if ( ! $inserted ) { |
| 595 |
return new WP_Error( 'insert_failed', __( 'Could not find a safe place to insert constants', 'vigilante' ) ); |
| 596 |
} |
| 597 |
|
| 598 |
// SAFETY CHECK 5: Final content must still be valid |
| 599 |
if ( ! $this->validate_wpconfig_content( $content ) ) { |
| 600 |
return new WP_Error( 'invalid_final', __( 'Final wp-config.php would be invalid, aborting', 'vigilante' ) ); |
| 601 |
} |
| 602 |
|
| 603 |
// SAFETY CHECK 6: Final content should be at least as big as original (minus our old block) |
| 604 |
if ( strlen( $content ) < strlen( $original_content ) * 0.5 ) { |
| 605 |
return new WP_Error( 'size_check_failed', __( 'Final wp-config.php would be too small, aborting', 'vigilante' ) ); |
| 606 |
} |
| 607 |
|
| 608 |
// All checks passed, write the file |
| 609 |
if ( $this->write_file_directly( $this->wpconfig_path, $content ) ) { |
| 610 |
return true; |
| 611 |
} |
| 612 |
|
| 613 |
return new WP_Error( 'write_failed', __( 'Failed to write wp-config.php', 'vigilante' ) ); |
| 614 |
} |
| 615 |
|
| 616 |
/** |
| 617 |
* Write file directly (more reliable than WP_Filesystem) |
| 618 |
* |
| 619 |
* @param string $path File path. |
| 620 |
* @param string $content Content to write. |
| 621 |
* @return bool |
| 622 |
*/ |
| 623 |
private function write_file_directly( $path, $content ) { |
| 624 |
return false !== file_put_contents( $path, $content ); // phpcs:ignore |
| 625 |
} |
| 626 |
|
| 627 |
/** |
| 628 |
* Check if wp-config.php is writable |
| 629 |
* |
| 630 |
* @return bool |
| 631 |
*/ |
| 632 |
public function is_wpconfig_writable() { |
| 633 |
if ( ! file_exists( $this->wpconfig_path ) ) { |
| 634 |
return false; |
| 635 |
} |
| 636 |
|
| 637 |
// Initialize WP_Filesystem |
| 638 |
global $wp_filesystem; |
| 639 |
if ( ! function_exists( 'WP_Filesystem' ) ) { |
| 640 |
require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 641 |
} |
| 642 |
WP_Filesystem(); |
| 643 |
|
| 644 |
if ( ! $wp_filesystem ) { |
| 645 |
return false; |
| 646 |
} |
| 647 |
|
| 648 |
return $wp_filesystem->is_writable( $this->wpconfig_path ); |
| 649 |
} |
| 650 |
|
| 651 |
/** |
| 652 |
* Verify if our constants are currently active |
| 653 |
* |
| 654 |
* @return bool |
| 655 |
*/ |
| 656 |
public function are_constants_active() { |
| 657 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 658 |
if ( false === $content ) { |
| 659 |
return false; |
| 660 |
} |
| 661 |
return strpos( $content, self::MARKER_START ) !== false; |
| 662 |
} |
| 663 |
|
| 664 |
/** |
| 665 |
* Get current defined constants status |
| 666 |
* |
| 667 |
* @return array |
| 668 |
*/ |
| 669 |
public function get_constants_status() { |
| 670 |
return array( |
| 671 |
'DISALLOW_FILE_EDIT' => defined( 'DISALLOW_FILE_EDIT' ) ? DISALLOW_FILE_EDIT : null, |
| 672 |
'DISALLOW_FILE_MODS' => defined( 'DISALLOW_FILE_MODS' ) ? DISALLOW_FILE_MODS : null, |
| 673 |
'FORCE_SSL_ADMIN' => defined( 'FORCE_SSL_ADMIN' ) ? FORCE_SSL_ADMIN : null, |
| 674 |
'FORCE_SSL_LOGIN' => defined( 'FORCE_SSL_LOGIN' ) ? FORCE_SSL_LOGIN : null, |
| 675 |
'WP_DEBUG' => defined( 'WP_DEBUG' ) ? WP_DEBUG : null, |
| 676 |
'WP_DEBUG_LOG' => defined( 'WP_DEBUG_LOG' ) ? WP_DEBUG_LOG : null, |
| 677 |
'WP_DEBUG_DISPLAY' => defined( 'WP_DEBUG_DISPLAY' ) ? WP_DEBUG_DISPLAY : null, |
| 678 |
); |
| 679 |
} |
| 680 |
|
| 681 |
/** |
| 682 |
* Check if there are commented original constants |
| 683 |
* |
| 684 |
* @return bool |
| 685 |
*/ |
| 686 |
public function has_commented_originals() { |
| 687 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 688 |
if ( false === $content ) { |
| 689 |
return false; |
| 690 |
} |
| 691 |
return strpos( $content, self::ORIGINAL_MARKER ) !== false; |
| 692 |
} |
| 693 |
|
| 694 |
/** |
| 695 |
* Get list of commented original constants |
| 696 |
* |
| 697 |
* @return array |
| 698 |
*/ |
| 699 |
public function get_commented_originals() { |
| 700 |
$content = $this->read_file_directly( $this->wpconfig_path ); |
| 701 |
if ( false === $content ) { |
| 702 |
return array(); |
| 703 |
} |
| 704 |
|
| 705 |
$originals = array(); |
| 706 |
$pattern = '/' . preg_quote( self::ORIGINAL_MARKER, '/' ) . '(.+)$/m'; |
| 707 |
|
| 708 |
if ( preg_match_all( $pattern, $content, $matches ) ) { |
| 709 |
$originals = $matches[1]; |
| 710 |
} |
| 711 |
|
| 712 |
return $originals; |
| 713 |
} |
| 714 |
} |
