| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* The Urls Redirection functionality of the plugin. |
| 5 |
* |
| 6 |
* Defines the plugin name, version, and two examples hooks for how to |
| 7 |
* enqueue the admin-specific stylesheet and JavaScript. |
| 8 |
* |
| 9 |
* @link https://searchatlas.com |
| 10 |
* @since 1.0.0 |
| 11 |
* @package Metasync |
| 12 |
* @subpackage Metasync/redirections |
| 13 |
* @author Engineering Team <support@searchatlas.com> |
| 14 |
*/ |
| 15 |
|
| 16 |
// Abort if this file is accessed directly. |
| 17 |
if (!defined('ABSPATH')) { |
| 18 |
exit; |
| 19 |
} |
| 20 |
|
| 21 |
class Metasync_Redirection |
| 22 |
{ |
| 23 |
|
| 24 |
private $db_redirection; |
| 25 |
private $common; |
| 26 |
private $importer; |
| 27 |
public function __construct(&$db_redirection) |
| 28 |
{ |
| 29 |
$this->db_redirection = $db_redirection; |
| 30 |
$this->common = new Metasync_Common(); |
| 31 |
|
| 32 |
# Load importer class |
| 33 |
require_once dirname(__FILE__) . '/class-metasync-redirection-importer.php'; |
| 34 |
$this->importer = new Metasync_Redirection_Importer($db_redirection); |
| 35 |
} |
| 36 |
|
| 37 |
function contains($haystack, $needle, $caseSensitive = false) |
| 38 |
{ |
| 39 |
return $caseSensitive ? |
| 40 |
(strpos($haystack, $needle) === FALSE ? FALSE : TRUE) : (stripos($haystack, $needle) === FALSE ? FALSE : TRUE); |
| 41 |
} |
| 42 |
|
| 43 |
public function create_admin_redirection_interface() |
| 44 |
{ |
| 45 |
# Check if we should show import interface |
| 46 |
$request_data = metasync_sanitize_input_array($_REQUEST); |
| 47 |
if (isset($request_data['action']) && $request_data['action'] === 'import') { |
| 48 |
$this->show_import_interface(); |
| 49 |
return; |
| 50 |
} |
| 51 |
|
| 52 |
if (!class_exists('WP_List_Table')) { |
| 53 |
require_once ABSPATH . 'wp-admin/includes/class-wp-list-table.php'; |
| 54 |
} |
| 55 |
require dirname(__FILE__, 2) . '/redirections/class-metasync-redirection-list-table.php'; |
| 56 |
|
| 57 |
$MetasyncRedirection = new Metasync_Redirection_List_Table(); |
| 58 |
|
| 59 |
$MetasyncRedirection->setDatabaseResource($this->db_redirection); |
| 60 |
|
| 61 |
$MetasyncRedirection->prepare_items(); |
| 62 |
|
| 63 |
// Include the view markup. |
| 64 |
include dirname(__FILE__, 2) . '/views/metasync-redirection.php'; |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* Show import interface |
| 69 |
*/ |
| 70 |
public function show_import_interface() |
| 71 |
{ |
| 72 |
$importer = $this->importer; |
| 73 |
include dirname(__FILE__, 2) . '/views/metasync-import-redirections.php'; |
| 74 |
} |
| 75 |
|
| 76 |
/** |
| 77 |
* Handle AJAX import request |
| 78 |
*/ |
| 79 |
public function handle_import_ajax() |
| 80 |
{ |
| 81 |
# Verify nonce |
| 82 |
check_ajax_referer('metasync_import_redirections', 'nonce'); |
| 83 |
|
| 84 |
# Check user capabilities |
| 85 |
if (!Metasync::current_user_has_plugin_access()) { |
| 86 |
wp_send_json_error(['message' => 'Insufficient permissions.']); |
| 87 |
return; |
| 88 |
} |
| 89 |
|
| 90 |
$plugin = isset($_POST['plugin']) ? sanitize_text_field($_POST['plugin']) : ''; |
| 91 |
|
| 92 |
if (empty($plugin)) { |
| 93 |
wp_send_json_error(['message' => 'No plugin specified.']); |
| 94 |
return; |
| 95 |
} |
| 96 |
|
| 97 |
try { |
| 98 |
# Perform import |
| 99 |
$result = $this->importer->import_from_plugin($plugin); |
| 100 |
|
| 101 |
if ($result['success']) { |
| 102 |
wp_send_json_success($result); |
| 103 |
} else { |
| 104 |
wp_send_json_error($result); |
| 105 |
} |
| 106 |
} catch (Exception $e) { |
| 107 |
wp_send_json_error([ |
| 108 |
'message' => 'Import failed. Please try again or contact support.', |
| 109 |
'imported' => 0, |
| 110 |
'skipped' => 0 |
| 111 |
]); |
| 112 |
} |
| 113 |
} |
| 114 |
|
| 115 |
public function get_current_page_url() |
| 116 |
{ |
| 117 |
$server_data = metasync_sanitize_input_array($_SERVER); |
| 118 |
$link = '://' . $server_data['HTTP_HOST'] . $server_data['REQUEST_URI']; |
| 119 |
$link = (is_ssl() ? 'https' : 'http') . $link; |
| 120 |
return sanitize_url($link); |
| 121 |
} |
| 122 |
|
| 123 |
public function source_url_redirection(object $row, string $uri) |
| 124 |
{ |
| 125 |
// Optimize: unserialize only once |
| 126 |
$sources_from = unserialize($row->sources_from); |
| 127 |
$source_urls = is_array($sources_from) ? $sources_from : []; |
| 128 |
$global_pattern_type = isset($row->pattern_type) ? $row->pattern_type : null; |
| 129 |
$regex_pattern = isset($row->regex_pattern) ? $row->regex_pattern : null; |
| 130 |
|
| 131 |
foreach ($source_urls as $source_key => $source_value) { |
| 132 |
$match_found = false; |
| 133 |
$captured_path = ''; // Store captured path for wildcard replacement |
| 134 |
|
| 135 |
// Ensure source_key is always a string (handles numeric array indexes) |
| 136 |
$source_key = (string) $source_key; |
| 137 |
|
| 138 |
// Determine pattern type: use source value if it's a valid pattern, otherwise use global pattern_type |
| 139 |
$pattern_type = in_array($source_value, ['exact', 'contain', 'start', 'end', 'wildcard', 'regex']) |
| 140 |
? $source_value |
| 141 |
: ($global_pattern_type ? $global_pattern_type : 'exact'); |
| 142 |
|
| 143 |
// Normalize both URI and source for comparison |
| 144 |
$normalized_uri = $uri; |
| 145 |
$normalized_source = $source_key; |
| 146 |
|
| 147 |
// If source is a full URL, extract just the path part |
| 148 |
if (strpos($source_key, 'http') === 0) { |
| 149 |
$parsed_url = parse_url($source_key); |
| 150 |
$normalized_source = $parsed_url['path'] ?? ''; |
| 151 |
} |
| 152 |
|
| 153 |
# Ensure both have leading slashes for proper comparison |
| 154 |
# This handles cases where database stores URLs with or without leading slash |
| 155 |
# Convert to string to handle cases where source_key might be an integer |
| 156 |
$normalized_source = (string) $normalized_source; |
| 157 |
if (!empty($normalized_source) && $normalized_source[0] !== '/') { |
| 158 |
$normalized_source = '/' . $normalized_source; |
| 159 |
} |
| 160 |
if (!empty($normalized_uri) && $normalized_uri[0] !== '/') { |
| 161 |
$normalized_uri = '/' . $normalized_uri; |
| 162 |
} |
| 163 |
|
| 164 |
// Keep full URI path for matching (don't strip leading slash) |
| 165 |
// This allows matching against full URLs like /wordpress/index.php/category/article/* |
| 166 |
|
| 167 |
// Handle regex patterns |
| 168 |
if ($pattern_type === 'regex' && $regex_pattern) { |
| 169 |
// Validate regex pattern before using it |
| 170 |
if (!$this->validate_regex_pattern($regex_pattern)) { |
| 171 |
// Skip invalid regex patterns to prevent errors |
| 172 |
continue; |
| 173 |
} |
| 174 |
|
| 175 |
# Normalize pattern (add delimiters if missing) |
| 176 |
$normalized_pattern = $this->normalize_regex_pattern($regex_pattern); |
| 177 |
|
| 178 |
|
| 179 |
$matches = []; |
| 180 |
// Suppress warnings for invalid regex and check result |
| 181 |
# $result = @preg_match($regex_pattern, $normalized_uri, $matches); |
| 182 |
$result = @preg_match($normalized_pattern, $normalized_uri, $matches); |
| 183 |
|
| 184 |
if ($result === 1) { |
| 185 |
$match_found = true; |
| 186 |
// Store captured groups for replacement |
| 187 |
if (isset($matches[1])) { |
| 188 |
$captured_path = $matches[1]; |
| 189 |
} |
| 190 |
} |
| 191 |
// If $result === false, regex is invalid - skip silently |
| 192 |
} else { |
| 193 |
// Check if source has wildcard |
| 194 |
$has_wildcard = strpos($normalized_source, '*') !== false; |
| 195 |
|
| 196 |
if ($has_wildcard) { |
| 197 |
// Handle wildcard pattern |
| 198 |
$match_result = $this->match_wildcard($normalized_source, $normalized_uri); |
| 199 |
if ($match_result !== false) { |
| 200 |
$match_found = true; |
| 201 |
$captured_path = $match_result; |
| 202 |
} |
| 203 |
} else { |
| 204 |
// Handle legacy pattern matching (non-wildcard) |
| 205 |
switch ($source_value) { |
| 206 |
case 'exact': |
| 207 |
if ($normalized_source === $normalized_uri) { |
| 208 |
$match_found = true; |
| 209 |
} |
| 210 |
break; |
| 211 |
case 'contain': |
| 212 |
if ($this->contains($normalized_uri, $normalized_source)) { |
| 213 |
$match_found = true; |
| 214 |
} |
| 215 |
break; |
| 216 |
case 'start': |
| 217 |
if (str_starts_with($normalized_uri, $normalized_source)) { |
| 218 |
$match_found = true; |
| 219 |
} |
| 220 |
break; |
| 221 |
case 'end': |
| 222 |
if (str_ends_with($normalized_uri, $normalized_source)) { |
| 223 |
$match_found = true; |
| 224 |
} |
| 225 |
break; |
| 226 |
default: |
| 227 |
// Handle new pattern_type field |
| 228 |
switch ($pattern_type) { |
| 229 |
case 'exact': |
| 230 |
if ($normalized_source === $normalized_uri) { |
| 231 |
$match_found = true; |
| 232 |
} |
| 233 |
break; |
| 234 |
case 'contain': |
| 235 |
if ($this->contains($normalized_uri, $normalized_source)) { |
| 236 |
$match_found = true; |
| 237 |
} |
| 238 |
break; |
| 239 |
case 'start': |
| 240 |
if (str_starts_with($normalized_uri, $normalized_source)) { |
| 241 |
$match_found = true; |
| 242 |
} |
| 243 |
break; |
| 244 |
case 'end': |
| 245 |
if (str_ends_with($normalized_uri, $normalized_source)) { |
| 246 |
$match_found = true; |
| 247 |
} |
| 248 |
break; |
| 249 |
case 'wildcard': |
| 250 |
$match_result = $this->match_wildcard($normalized_source, $normalized_uri); |
| 251 |
if ($match_result !== false) { |
| 252 |
$match_found = true; |
| 253 |
$captured_path = $match_result; |
| 254 |
} |
| 255 |
break; |
| 256 |
} |
| 257 |
break; |
| 258 |
} |
| 259 |
} |
| 260 |
} |
| 261 |
|
| 262 |
if ($match_found) { |
| 263 |
$this->db_redirection->update_counter($row); |
| 264 |
|
| 265 |
if ($row->http_code === '410') { |
| 266 |
status_header(410); |
| 267 |
die; |
| 268 |
} |
| 269 |
if ($row->http_code === '451') { |
| 270 |
status_header(451, 'Unavailable For Legal Reasons'); |
| 271 |
die; |
| 272 |
} |
| 273 |
if ($row->url_redirect_to) { |
| 274 |
// Replace wildcards or $1 placeholders in destination URL |
| 275 |
$destination = $this->process_destination_url($row->url_redirect_to, $captured_path); |
| 276 |
wp_redirect($destination, $row->http_code); |
| 277 |
die; |
| 278 |
} |
| 279 |
// Match found and processed, return true to stop checking other rules |
| 280 |
return true; |
| 281 |
} |
| 282 |
} |
| 283 |
|
| 284 |
// No match found |
| 285 |
return false; |
| 286 |
} |
| 287 |
|
| 288 |
/** |
| 289 |
* Resolve a URL through the redirect table to its final destination (follows redirect chains). |
| 290 |
* Used by OTTO and other backend processing so the final canonical URL is used before 404 checks. |
| 291 |
* |
| 292 |
* @param string $url Full URL (e.g. https://example.com/old-page) |
| 293 |
* @param int $max_hops Maximum redirect hops to follow (default 10, prevents infinite loops) |
| 294 |
* @return string Final destination URL, or original $url if no redirect matches |
| 295 |
*/ |
| 296 |
public function resolve_url_to_final_destination($url, $max_hops = 10) |
| 297 |
{ |
| 298 |
if (empty($url) || !is_string($url)) { |
| 299 |
return $url; |
| 300 |
} |
| 301 |
$parsed = parse_url($url); |
| 302 |
$scheme = isset($parsed['scheme']) ? $parsed['scheme'] : 'https'; |
| 303 |
$host = isset($parsed['host']) ? $parsed['host'] : ''; |
| 304 |
$base = $scheme . '://' . $host; |
| 305 |
$uri = isset($parsed['path']) ? $parsed['path'] : '/'; |
| 306 |
if (!empty($parsed['query'])) { |
| 307 |
$uri .= '?' . $parsed['query']; |
| 308 |
} |
| 309 |
$seen = array(); |
| 310 |
for ($i = 0; $i < $max_hops; $i++) { |
| 311 |
$uri_key = $uri; |
| 312 |
if (isset($seen[$uri_key])) { |
| 313 |
break; // cycle detected |
| 314 |
} |
| 315 |
$seen[$uri_key] = true; |
| 316 |
$dest = $this->get_redirect_destination_for_uri($uri); |
| 317 |
if ($dest === null) { |
| 318 |
break; |
| 319 |
} |
| 320 |
if (strpos($dest, 'http') === 0) { |
| 321 |
$url = $dest; |
| 322 |
$parsed = parse_url($url); |
| 323 |
$scheme = isset($parsed['scheme']) ? $parsed['scheme'] : 'https'; |
| 324 |
$host = isset($parsed['host']) ? $parsed['host'] : ''; |
| 325 |
$base = $scheme . '://' . $host; |
| 326 |
$uri = isset($parsed['path']) ? $parsed['path'] : '/'; |
| 327 |
if (!empty($parsed['query'])) { |
| 328 |
$uri .= '?' . $parsed['query']; |
| 329 |
} |
| 330 |
} else { |
| 331 |
$uri = (isset($dest[0]) && $dest[0] === '/') ? $dest : '/' . $dest; |
| 332 |
$url = $base . $uri; |
| 333 |
} |
| 334 |
} |
| 335 |
return $url; |
| 336 |
} |
| 337 |
|
| 338 |
/** |
| 339 |
* Get redirect destination for a URI without redirecting (no wp_redirect, no counter update). |
| 340 |
* Returns the destination URL/path if this URI matches a redirect source, else null. |
| 341 |
* Used by resolve_url_to_final_destination. 410/451 are treated as "no destination". |
| 342 |
* |
| 343 |
* @param string $uri URI path (and optional query), e.g. /old-page or /old?x=1 |
| 344 |
* @return string|null Destination URL or path, or null if no match |
| 345 |
*/ |
| 346 |
private function get_redirect_destination_for_uri($uri) |
| 347 |
{ |
| 348 |
$redirections = $this->db_redirection->getAllActiveRecords(); |
| 349 |
if (empty($redirections)) { |
| 350 |
return null; |
| 351 |
} |
| 352 |
foreach ($redirections as $row) { |
| 353 |
if (isset($row->http_code) && in_array((int) $row->http_code, array(410, 451), true)) { |
| 354 |
continue; // Gone / Unavailable – no destination to follow |
| 355 |
} |
| 356 |
if (empty($row->url_redirect_to)) { |
| 357 |
continue; |
| 358 |
} |
| 359 |
$dest = $this->get_destination_for_row_and_uri($row, $uri); |
| 360 |
if ($dest !== null) { |
| 361 |
return $dest; |
| 362 |
} |
| 363 |
} |
| 364 |
return null; |
| 365 |
} |
| 366 |
|
| 367 |
/** |
| 368 |
* Get destination for a single row and URI if it matches. Same matching logic as source_url_redirection. |
| 369 |
* |
| 370 |
* @param object $row Redirect row |
| 371 |
* @param string $uri URI to match |
| 372 |
* @return string|null Destination URL/path or null |
| 373 |
*/ |
| 374 |
private function get_destination_for_row_and_uri($row, $uri) |
| 375 |
{ |
| 376 |
// Parse stored redirect sources (serialized: source path/URL => pattern type per source, or single list) |
| 377 |
$sources_from = @unserialize($row->sources_from); |
| 378 |
$source_urls = is_array($sources_from) ? $sources_from : array(); |
| 379 |
$global_pattern_type = isset($row->pattern_type) ? $row->pattern_type : null; |
| 380 |
$regex_pattern = isset($row->regex_pattern) ? $row->regex_pattern : null; |
| 381 |
|
| 382 |
foreach ($source_urls as $source_key => $source_value) { |
| 383 |
$match_found = false; |
| 384 |
$captured_path = ''; // Used for wildcard/regex replacement in destination (e.g. * or $1) |
| 385 |
|
| 386 |
// Resolve pattern type: per-source value (exact, contain, start, end, wildcard, regex) or row-level default |
| 387 |
$pattern_type = in_array($source_value, array('exact', 'contain', 'start', 'end', 'wildcard', 'regex')) |
| 388 |
? $source_value |
| 389 |
: ($global_pattern_type ? $global_pattern_type : 'exact'); |
| 390 |
|
| 391 |
$normalized_uri = $uri; |
| 392 |
$normalized_source = $source_key; |
| 393 |
|
| 394 |
// If source is a full URL, use only the path for matching (consistent with front-end redirect behavior) |
| 395 |
if (strpos($source_key, 'http') === 0) { |
| 396 |
$parsed_src = parse_url($source_key); |
| 397 |
$normalized_source = isset($parsed_src['path']) ? $parsed_src['path'] : ''; |
| 398 |
} |
| 399 |
|
| 400 |
// Ensure leading slash for reliable path comparison |
| 401 |
if (!empty($normalized_source) && $normalized_source[0] !== '/') { |
| 402 |
$normalized_source = '/' . $normalized_source; |
| 403 |
} |
| 404 |
if (!empty($normalized_uri) && $normalized_uri[0] !== '/') { |
| 405 |
$normalized_uri = '/' . $normalized_uri; |
| 406 |
} |
| 407 |
|
| 408 |
// --- Matching: regex, wildcard, or legacy pattern types --- |
| 409 |
|
| 410 |
if ($pattern_type === 'regex' && $regex_pattern) { |
| 411 |
// Regex: validate and normalize pattern, then match; capture group 1 for $1 in destination |
| 412 |
if (!$this->validate_regex_pattern($regex_pattern)) { |
| 413 |
continue; |
| 414 |
} |
| 415 |
$normalized_pattern = $this->normalize_regex_pattern($regex_pattern); |
| 416 |
$matches = array(); |
| 417 |
if (@preg_match($normalized_pattern, $normalized_uri, $matches) === 1) { |
| 418 |
$match_found = true; |
| 419 |
$captured_path = isset($matches[1]) ? $matches[1] : ''; |
| 420 |
} |
| 421 |
} else { |
| 422 |
// Non-regex: check for * in source (wildcard) or use exact/contain/start/end |
| 423 |
$has_wildcard = strpos($normalized_source, '*') !== false; |
| 424 |
if ($has_wildcard) { |
| 425 |
// Wildcard: e.g. /old/* matches /old/page and captures "page" for destination |
| 426 |
$match_result = $this->match_wildcard($normalized_source, $normalized_uri); |
| 427 |
if ($match_result !== false) { |
| 428 |
$match_found = true; |
| 429 |
$captured_path = $match_result; |
| 430 |
} |
| 431 |
} else { |
| 432 |
// Legacy pattern: source_value can be the pattern type when key is the path |
| 433 |
switch ($source_value) { |
| 434 |
case 'exact': |
| 435 |
if ($normalized_source === $normalized_uri) { |
| 436 |
$match_found = true; |
| 437 |
} |
| 438 |
break; |
| 439 |
case 'contain': |
| 440 |
if ($this->contains($normalized_uri, $normalized_source)) { |
| 441 |
$match_found = true; |
| 442 |
} |
| 443 |
break; |
| 444 |
case 'start': |
| 445 |
if (str_starts_with($normalized_uri, $normalized_source)) { |
| 446 |
$match_found = true; |
| 447 |
} |
| 448 |
break; |
| 449 |
case 'end': |
| 450 |
if (str_ends_with($normalized_uri, $normalized_source)) { |
| 451 |
$match_found = true; |
| 452 |
} |
| 453 |
break; |
| 454 |
default: |
| 455 |
// Fallback to row-level pattern_type when source_value is not a known type |
| 456 |
switch ($pattern_type) { |
| 457 |
case 'exact': |
| 458 |
if ($normalized_source === $normalized_uri) { |
| 459 |
$match_found = true; |
| 460 |
} |
| 461 |
break; |
| 462 |
case 'contain': |
| 463 |
if ($this->contains($normalized_uri, $normalized_source)) { |
| 464 |
$match_found = true; |
| 465 |
} |
| 466 |
break; |
| 467 |
case 'start': |
| 468 |
if (str_starts_with($normalized_uri, $normalized_source)) { |
| 469 |
$match_found = true; |
| 470 |
} |
| 471 |
break; |
| 472 |
case 'end': |
| 473 |
if (str_ends_with($normalized_uri, $normalized_source)) { |
| 474 |
$match_found = true; |
| 475 |
} |
| 476 |
break; |
| 477 |
case 'wildcard': |
| 478 |
$match_result = $this->match_wildcard($normalized_source, $normalized_uri); |
| 479 |
if ($match_result !== false) { |
| 480 |
$match_found = true; |
| 481 |
$captured_path = $match_result; |
| 482 |
} |
| 483 |
break; |
| 484 |
} |
| 485 |
break; |
| 486 |
} |
| 487 |
} |
| 488 |
} |
| 489 |
|
| 490 |
// First match wins: return destination with * / $1 replaced by captured_path |
| 491 |
if ($match_found && !empty($row->url_redirect_to)) { |
| 492 |
return $this->process_destination_url($row->url_redirect_to, $captured_path); |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
return null; |
| 497 |
} |
| 498 |
|
| 499 |
/** |
| 500 |
* Match wildcard pattern against URI |
| 501 |
* |
| 502 |
* @param string $pattern Pattern with * wildcard |
| 503 |
* @param string $uri URI to match against |
| 504 |
* @return string|false Returns captured path on match, false otherwise |
| 505 |
*/ |
| 506 |
private function match_wildcard($pattern, $uri) |
| 507 |
{ |
| 508 |
// Escape special regex characters except * |
| 509 |
$pattern = str_replace(['\\', '/', '.', '+', '?', '[', '^', ']', '$', '(', ')', '{', '}', '=', '!', '<', '>', '|', ':', '-'], |
| 510 |
['\\\\', '\\/', '\\.', '\\+', '\\?', '\\[', '\\^', '\\]', '\\$', '\\(', '\\)', '\\{', '\\}', '\\=', '\\!', '\\<', '\\>', '\\|', '\\:', '\\-'], |
| 511 |
$pattern); |
| 512 |
|
| 513 |
// Replace * with capturing group |
| 514 |
$pattern = str_replace('*', '(.*)', $pattern); |
| 515 |
|
| 516 |
// Create regex pattern |
| 517 |
$regex = '/^' . $pattern . '$/'; |
| 518 |
|
| 519 |
$matches = []; |
| 520 |
if (preg_match($regex, $uri, $matches)) { |
| 521 |
// Return the captured path (first capturing group) |
| 522 |
return isset($matches[1]) ? $matches[1] : ''; |
| 523 |
} |
| 524 |
|
| 525 |
return false; |
| 526 |
} |
| 527 |
|
| 528 |
/** |
| 529 |
* Process destination URL with captured path |
| 530 |
* |
| 531 |
* @param string $destination Destination URL (may contain * or $1) |
| 532 |
* @param string $captured_path Captured path from source |
| 533 |
* @return string Processed destination URL |
| 534 |
*/ |
| 535 |
private function process_destination_url($destination, $captured_path) |
| 536 |
{ |
| 537 |
// Replace * wildcard with captured path |
| 538 |
if (strpos($destination, '*') !== false) { |
| 539 |
$destination = str_replace('*', $captured_path ?? '', $destination); |
| 540 |
} |
| 541 |
|
| 542 |
// Replace $1 placeholder with captured path (for regex compatibility) |
| 543 |
if (strpos($destination, '$1') !== false) { |
| 544 |
$destination = str_replace('$1', $captured_path ?? '', $destination); |
| 545 |
} |
| 546 |
|
| 547 |
return $destination; |
| 548 |
} |
| 549 |
|
| 550 |
/** |
| 551 |
* Handle template redirect for frontend redirections |
| 552 |
*/ |
| 553 |
public function handle_template_redirect() |
| 554 |
{ |
| 555 |
// Only process on frontend |
| 556 |
if (is_admin()) { |
| 557 |
return; |
| 558 |
} |
| 559 |
|
| 560 |
// Get current URI |
| 561 |
$uri = $_SERVER['REQUEST_URI']; |
| 562 |
|
| 563 |
// Remove query string for matching |
| 564 |
$uri = strtok($uri, '?'); |
| 565 |
|
| 566 |
// Get all active redirections (cached for 1 hour) |
| 567 |
$redirections = $this->db_redirection->getAllActiveRecords(); |
| 568 |
|
| 569 |
// Early exit if no redirections configured |
| 570 |
if (empty($redirections)) { |
| 571 |
return; |
| 572 |
} |
| 573 |
|
| 574 |
// Process each redirection until a match is found |
| 575 |
foreach ($redirections as $redirection) { |
| 576 |
// Stop processing once a match is found and redirect is executed |
| 577 |
if ($this->source_url_redirection($redirection, $uri)) { |
| 578 |
break; // Early exit - no need to check remaining rules |
| 579 |
} |
| 580 |
} |
| 581 |
} |
| 582 |
|
| 583 |
/** |
| 584 |
* Prevent WordPress from redirecting to draft posts |
| 585 |
* This stops WordPress from auto-redirecting URLs to ?p=POST_ID for draft posts |
| 586 |
* |
| 587 |
* @param string $redirect_url The redirect URL |
| 588 |
* @param string $requested_url The requested URL |
| 589 |
* @return string|false The redirect URL or false to cancel redirect |
| 590 |
*/ |
| 591 |
public function prevent_draft_post_redirects($redirect_url, $requested_url) |
| 592 |
{ |
| 593 |
# If no redirect is happening, return as-is |
| 594 |
if (empty($redirect_url)) { |
| 595 |
return $redirect_url; |
| 596 |
} |
| 597 |
|
| 598 |
# Check if WordPress is trying to redirect to a ?p= or ?page_id= URL |
| 599 |
if (strpos($redirect_url, '?p=') !== false || strpos($redirect_url, '?page_id=') !== false) { |
| 600 |
# Extract the post ID |
| 601 |
$post_id = null; |
| 602 |
if (preg_match('/[?&]p=(\d+)/', $redirect_url, $matches)) { |
| 603 |
$post_id = intval($matches[1]); |
| 604 |
} elseif (preg_match('/[?&]page_id=(\d+)/', $redirect_url, $matches)) { |
| 605 |
$post_id = intval($matches[1]); |
| 606 |
} |
| 607 |
|
| 608 |
# If we found a post ID, check if it's a draft |
| 609 |
if ($post_id) { |
| 610 |
$post = get_post($post_id); |
| 611 |
|
| 612 |
# If post is draft, auto-draft, pending, or private, prevent the redirect |
| 613 |
if ($post && in_array($post->post_status, ['draft', 'auto-draft', 'pending', 'private'])) { |
| 614 |
# Return false to cancel the redirect and show 404 instead |
| 615 |
return false; |
| 616 |
} |
| 617 |
} |
| 618 |
} |
| 619 |
|
| 620 |
# Allow the redirect for published posts |
| 621 |
return $redirect_url; |
| 622 |
} |
| 623 |
|
| 624 |
/** |
| 625 |
* Prevent wp_old_slug_redirect from redirecting to draft posts |
| 626 |
* |
| 627 |
* This uses WordPress's built-in 'old_slug_redirect_post_id' filter to selectively |
| 628 |
* block redirects ONLY to unpublished posts, while allowing redirects to published posts. |
| 629 |
* - It doesn't break existing WordPress functionality |
| 630 |
* - Published posts can still use old slug redirects (good for SEO) |
| 631 |
* - Only protects unpublished content from exposure |
| 632 |
* - Non-invasive and backwards compatible |
| 633 |
* |
| 634 |
* @param int $post_id The post ID that WordPress wants to redirect to |
| 635 |
* @return int|false The post ID to redirect to, or false to prevent redirect |
| 636 |
*/ |
| 637 |
public function prevent_old_slug_redirect_to_drafts($post_id) |
| 638 |
{ |
| 639 |
# If no post ID provided, don't redirect |
| 640 |
if (empty($post_id)) { |
| 641 |
return false; |
| 642 |
} |
| 643 |
|
| 644 |
# Get the post |
| 645 |
$post = get_post($post_id); |
| 646 |
|
| 647 |
# If post doesn't exist, don't redirect |
| 648 |
if (!$post) { |
| 649 |
return false; |
| 650 |
} |
| 651 |
|
| 652 |
// Check if this post is unpublished (draft, pending, private, auto-draft) |
| 653 |
if (in_array($post->post_status, ['draft', 'auto-draft', 'pending', 'private'])) { |
| 654 |
# Return false to prevent the redirect to unpublished content |
| 655 |
# This will cause WordPress to show 404 instead, protecting draft content |
| 656 |
return false; |
| 657 |
} |
| 658 |
|
| 659 |
# Allow redirect for published posts (preserves normal WordPress functionality) |
| 660 |
return $post_id; |
| 661 |
} |
| 662 |
|
| 663 |
/** |
| 664 |
* Normalize regex pattern by adding delimiters if missing |
| 665 |
* |
| 666 |
* @param string $pattern The regex pattern |
| 667 |
* @return string Pattern with delimiters |
| 668 |
*/ |
| 669 |
public static function normalize_regex_pattern($pattern) |
| 670 |
{ |
| 671 |
if (empty($pattern)) { |
| 672 |
return $pattern; |
| 673 |
} |
| 674 |
|
| 675 |
// Check if pattern starts with a common delimiter |
| 676 |
$common_delimiters = ['/', '#', '~', '%', '@']; |
| 677 |
$starts_with_delimiter = in_array($pattern[0], $common_delimiters); |
| 678 |
|
| 679 |
if ($starts_with_delimiter) { |
| 680 |
// Pattern starts with delimiter, check if it has proper structure |
| 681 |
$first_char = $pattern[0]; |
| 682 |
$last_delimiter_pos = strrpos($pattern, $first_char); |
| 683 |
|
| 684 |
// If there's a closing delimiter at a different position, pattern likely has delimiters |
| 685 |
if ($last_delimiter_pos !== false && $last_delimiter_pos > 0) { |
| 686 |
// Check if what comes after the last delimiter are valid modifiers |
| 687 |
$after_last_delimiter = substr($pattern, $last_delimiter_pos + 1); |
| 688 |
// Valid modifiers: i, m, s, x, A, D, S, U, X, J, u |
| 689 |
if (empty($after_last_delimiter) || preg_match('/^[imsxADSUXJu]*$/', $after_last_delimiter)) { |
| 690 |
// Pattern appears to have proper delimiters, return as-is |
| 691 |
return $pattern; |
| 692 |
} |
| 693 |
} |
| 694 |
} |
| 695 |
|
| 696 |
// Pattern doesn't have delimiters or is malformed, add them |
| 697 |
// Choose delimiter that's not in the pattern |
| 698 |
$delimiters = ['/', '#', '~', '%', '@']; |
| 699 |
$delimiter = '/'; |
| 700 |
|
| 701 |
foreach ($delimiters as $test_delimiter) { |
| 702 |
if (strpos($pattern, $test_delimiter) === false) { |
| 703 |
$delimiter = $test_delimiter; |
| 704 |
break; |
| 705 |
} |
| 706 |
} |
| 707 |
|
| 708 |
return $delimiter . $pattern . $delimiter; |
| 709 |
} |
| 710 |
|
| 711 |
/** |
| 712 |
* Validate regex pattern |
| 713 |
*/ |
| 714 |
public function validate_regex_pattern($pattern) |
| 715 |
{ |
| 716 |
if (empty($pattern)) { |
| 717 |
return true; // Empty pattern is valid (not required) |
| 718 |
} |
| 719 |
|
| 720 |
// Normalize pattern (add delimiters if missing, fix malformed patterns) |
| 721 |
$normalized_pattern = $this->normalize_regex_pattern($pattern); |
| 722 |
|
| 723 |
// Test if the regex pattern is valid |
| 724 |
# $test_result = @preg_match($pattern, ''); |
| 725 |
# return $test_result !== false; |
| 726 |
|
| 727 |
// Use error handler to catch warnings from malformed patterns |
| 728 |
$error_occurred = false; |
| 729 |
set_error_handler(function() use (&$error_occurred) { |
| 730 |
$error_occurred = true; |
| 731 |
return true; // Suppress the error |
| 732 |
}, E_WARNING); |
| 733 |
|
| 734 |
$test_result = preg_match($normalized_pattern, ''); |
| 735 |
|
| 736 |
restore_error_handler(); |
| 737 |
|
| 738 |
// Return false if preg_match failed or if an error occurred |
| 739 |
return $test_result !== false && !$error_occurred; |
| 740 |
} |
| 741 |
|
| 742 |
/** |
| 743 |
* Sanitize URL for redirection |
| 744 |
*/ |
| 745 |
public function sanitize_redirect_url($url) |
| 746 |
{ |
| 747 |
// Remove any dangerous protocols |
| 748 |
$url = str_replace(['javascript:', 'data:', 'vbscript:'], '', $url); |
| 749 |
|
| 750 |
// Ensure it's a valid URL |
| 751 |
if (!filter_var($url, FILTER_VALIDATE_URL) && !str_starts_with($url, '/')) { |
| 752 |
// If it's not a full URL and doesn't start with /, assume it's a relative path |
| 753 |
$url = '/' . ltrim($url, '/'); |
| 754 |
} |
| 755 |
|
| 756 |
return esc_url_raw($url); |
| 757 |
} |
| 758 |
} |
| 759 |
|
