| 1 |
<?php |
| 2 |
/** |
| 3 |
* MCP Tool: Redirect Management |
| 4 |
* |
| 5 |
* Provides tools for managing WordPress redirects. |
| 6 |
* |
| 7 |
* @package MetaSync |
| 8 |
* @subpackage MCP_Server/Tools |
| 9 |
*/ |
| 10 |
|
| 11 |
if (!defined('ABSPATH')) { |
| 12 |
exit; |
| 13 |
} |
| 14 |
|
| 15 |
/** |
| 16 |
* Create Redirect Tool |
| 17 |
*/ |
| 18 |
class MCP_Tool_Create_Redirect extends MCP_Tool_Base { |
| 19 |
|
| 20 |
public function get_name() { |
| 21 |
return 'wordpress_create_redirect'; |
| 22 |
} |
| 23 |
|
| 24 |
public function get_description() { |
| 25 |
return 'Create a 301 or 302 redirect from one URL to another'; |
| 26 |
} |
| 27 |
|
| 28 |
public function get_input_schema() { |
| 29 |
return [ |
| 30 |
'type' => 'object', |
| 31 |
'properties' => [ |
| 32 |
'source' => [ |
| 33 |
'type' => 'string', |
| 34 |
'description' => 'Source URL path (e.g., /old-page or https://example.com/old-page)' |
| 35 |
], |
| 36 |
'destination' => [ |
| 37 |
'type' => 'string', |
| 38 |
'description' => 'Destination URL (full URL or path)' |
| 39 |
], |
| 40 |
'type' => [ |
| 41 |
'type' => 'integer', |
| 42 |
'description' => 'Redirect HTTP code', |
| 43 |
'enum' => [301, 302], |
| 44 |
'default' => 301 |
| 45 |
], |
| 46 |
'description' => [ |
| 47 |
'type' => 'string', |
| 48 |
'description' => 'Optional description of the redirect', |
| 49 |
'default' => '' |
| 50 |
] |
| 51 |
], |
| 52 |
'required' => ['source', 'destination'] |
| 53 |
]; |
| 54 |
} |
| 55 |
|
| 56 |
public function execute($params) { |
| 57 |
$this->validate_params($params); |
| 58 |
$this->require_capability('manage_options'); |
| 59 |
|
| 60 |
// Load database class |
| 61 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-database.php'; |
| 62 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-validator.php'; |
| 63 |
$db = new Metasync_Redirection_Database(); |
| 64 |
|
| 65 |
$source = $this->sanitize_url($params['source']); |
| 66 |
$destination = $this->sanitize_url($params['destination']); |
| 67 |
$http_code = isset($params['type']) ? $this->sanitize_integer($params['type']) : 301; |
| 68 |
$description = isset($params['description']) ? $this->sanitize_textarea($params['description']) : ''; |
| 69 |
|
| 70 |
if (!empty($destination) && !Metasync_Redirection_Validator::is_safe_destination_syntax($destination)) { |
| 71 |
// Backslashes and protocol-relative hosts bypass host validation in |
| 72 |
// browsers while looking internal to wp_validate_redirect. |
| 73 |
return [ |
| 74 |
'error' => 'invalid_destination_syntax', |
| 75 |
'message' => 'Destination URL contains invalid characters (backslashes or protocol-relative hosts are not accepted).', |
| 76 |
]; |
| 77 |
} |
| 78 |
if (!get_option('metasync_allow_external_redirects', 0) && !empty($destination) && wp_validate_redirect($destination, '') !== $destination) { |
| 79 |
return [ |
| 80 |
'error' => 'external_destination', |
| 81 |
'message' => 'Destination URL must be on this site. Enable "Allow External Redirects" in plugin settings to permit off-site redirects.', |
| 82 |
]; |
| 83 |
} |
| 84 |
|
| 85 |
// Parse source to get path |
| 86 |
$source_path = parse_url($source, PHP_URL_PATH) ?: $source; |
| 87 |
|
| 88 |
// Loop detection — refuse to create a redirect whose chain resolves back to the source |
| 89 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection.php'; |
| 90 |
$db_ref = $db; |
| 91 |
$redirection_helper = new Metasync_Redirection($db_ref); |
| 92 |
$loop_chain = []; |
| 93 |
if ($redirection_helper->would_create_loop($source_path, $destination, $loop_chain)) { |
| 94 |
return [ |
| 95 |
'error' => 'loop_detected', |
| 96 |
'chain' => $loop_chain, |
| 97 |
]; |
| 98 |
} |
| 99 |
|
| 100 |
// Create redirect |
| 101 |
$result = $db->add([ |
| 102 |
'sources_from' => [$source_path], |
| 103 |
'url_redirect_to' => $destination, |
| 104 |
'http_code' => $http_code, |
| 105 |
'description' => $description, |
| 106 |
'status' => 'active', |
| 107 |
'pattern_type' => 'exact' |
| 108 |
]); |
| 109 |
|
| 110 |
if ($result === false) { |
| 111 |
throw new Exception('Failed to create redirect'); |
| 112 |
} |
| 113 |
|
| 114 |
// Non-blocking destination reachability check — surface a warning, never block creation. |
| 115 |
$dest_warning = $redirection_helper->destination_resolves_warning($destination, $http_code); |
| 116 |
|
| 117 |
$response_data = [ |
| 118 |
'redirect_id' => $result, |
| 119 |
'source' => $source_path, |
| 120 |
'destination' => $destination, |
| 121 |
'type' => $http_code, |
| 122 |
'status' => 'active' |
| 123 |
]; |
| 124 |
if ($dest_warning !== null) { |
| 125 |
$response_data['warning'] = $dest_warning; |
| 126 |
} |
| 127 |
|
| 128 |
return $this->success($response_data, 'Redirect created successfully'); |
| 129 |
} |
| 130 |
} |
| 131 |
|
| 132 |
/** |
| 133 |
* List Redirects Tool |
| 134 |
*/ |
| 135 |
class MCP_Tool_List_Redirects extends MCP_Tool_Base { |
| 136 |
|
| 137 |
public function get_name() { |
| 138 |
return 'wordpress_list_redirects'; |
| 139 |
} |
| 140 |
|
| 141 |
public function get_description() { |
| 142 |
return 'List all redirects with optional status filter'; |
| 143 |
} |
| 144 |
|
| 145 |
public function get_input_schema() { |
| 146 |
return [ |
| 147 |
'type' => 'object', |
| 148 |
'properties' => [ |
| 149 |
'status' => [ |
| 150 |
'type' => 'string', |
| 151 |
'description' => 'Filter by status', |
| 152 |
'enum' => ['active', 'inactive', 'all'], |
| 153 |
'default' => 'active' |
| 154 |
], |
| 155 |
'limit' => [ |
| 156 |
'type' => 'integer', |
| 157 |
'description' => 'Maximum number of results', |
| 158 |
'default' => 50, |
| 159 |
'minimum' => 1, |
| 160 |
'maximum' => 200 |
| 161 |
] |
| 162 |
], |
| 163 |
'required' => [] |
| 164 |
]; |
| 165 |
} |
| 166 |
|
| 167 |
public function execute($params) { |
| 168 |
$this->validate_params($params); |
| 169 |
$this->require_capability('manage_options'); |
| 170 |
|
| 171 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-database.php'; |
| 172 |
$db = new Metasync_Redirection_Database(); |
| 173 |
|
| 174 |
$status = isset($params['status']) ? $params['status'] : 'active'; |
| 175 |
|
| 176 |
// Get redirects |
| 177 |
if ($status === 'active') { |
| 178 |
$redirects = $db->getAllActiveRecords(); |
| 179 |
} else { |
| 180 |
$redirects = $db->getAllRecords(); |
| 181 |
} |
| 182 |
|
| 183 |
// Filter by status if needed |
| 184 |
if ($status !== 'all' && $status !== 'active') { |
| 185 |
$redirects = array_filter($redirects, function($r) use ($status) { |
| 186 |
return $r->status === $status; |
| 187 |
}); |
| 188 |
} |
| 189 |
|
| 190 |
// Limit results |
| 191 |
$limit = isset($params['limit']) ? $this->sanitize_integer($params['limit']) : 50; |
| 192 |
$redirects = array_slice($redirects, 0, $limit); |
| 193 |
|
| 194 |
// Format results (sources_from may be JSON or legacy serialized in DB) |
| 195 |
$result = array_map(function($redirect) { |
| 196 |
$sources_raw = $redirect->sources_from; |
| 197 |
$source = null; |
| 198 |
if ( ! empty( $sources_raw ) ) { |
| 199 |
// Try JSON first; fall back to unserialize for legacy DB records |
| 200 |
$sources = json_decode( $sources_raw, true ); |
| 201 |
if ( $sources === null && $sources_raw !== 'null' ) { |
| 202 |
$sources = unserialize( $sources_raw, ['allowed_classes' => false] ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize |
| 203 |
} |
| 204 |
if ( is_array( $sources ) && ! empty( $sources ) ) { |
| 205 |
$keys = array_keys( $sources ); |
| 206 |
$source = is_int( $keys[0] ) ? $sources[ $keys[0] ] : $keys[0]; |
| 207 |
} |
| 208 |
} |
| 209 |
return [ |
| 210 |
'id' => $redirect->id, |
| 211 |
'source' => $source, |
| 212 |
'destination' => $redirect->url_redirect_to, |
| 213 |
'type' => $redirect->http_code, |
| 214 |
'hits' => $redirect->hits_count, |
| 215 |
'status' => $redirect->status, |
| 216 |
'pattern_type' => $redirect->pattern_type ?? 'exact', |
| 217 |
'description' => $redirect->description ?? '', |
| 218 |
'created_at' => $redirect->created_at ?? null |
| 219 |
]; |
| 220 |
}, $redirects); |
| 221 |
|
| 222 |
return $this->success([ |
| 223 |
'redirects' => $result, |
| 224 |
'total' => count($result) |
| 225 |
]); |
| 226 |
} |
| 227 |
} |
| 228 |
|
| 229 |
/** |
| 230 |
* Delete Redirect Tool |
| 231 |
*/ |
| 232 |
class MCP_Tool_Delete_Redirect extends MCP_Tool_Base { |
| 233 |
|
| 234 |
public function get_name() { |
| 235 |
return 'wordpress_delete_redirect'; |
| 236 |
} |
| 237 |
|
| 238 |
public function get_description() { |
| 239 |
return 'Delete a redirect by ID'; |
| 240 |
} |
| 241 |
|
| 242 |
public function get_input_schema() { |
| 243 |
return [ |
| 244 |
'type' => 'object', |
| 245 |
'properties' => [ |
| 246 |
'redirect_id' => [ |
| 247 |
'type' => 'integer', |
| 248 |
'description' => 'Redirect ID to delete', |
| 249 |
'minimum' => 1 |
| 250 |
] |
| 251 |
], |
| 252 |
'required' => ['redirect_id'] |
| 253 |
]; |
| 254 |
} |
| 255 |
|
| 256 |
public function execute($params) { |
| 257 |
$this->validate_params($params); |
| 258 |
$this->require_capability('manage_options'); |
| 259 |
|
| 260 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-database.php'; |
| 261 |
$db = new Metasync_Redirection_Database(); |
| 262 |
|
| 263 |
$redirect_id = $this->sanitize_integer($params['redirect_id']); |
| 264 |
|
| 265 |
// Verify redirect exists |
| 266 |
$redirect = $db->find($redirect_id); |
| 267 |
if (!$redirect) { |
| 268 |
throw new Exception(sprintf("Redirect not found: %d", absint($redirect_id))); |
| 269 |
} |
| 270 |
|
| 271 |
// Delete redirect |
| 272 |
$result = $db->delete([$redirect_id]); |
| 273 |
|
| 274 |
if ($result === false) { |
| 275 |
throw new Exception('Failed to delete redirect'); |
| 276 |
} |
| 277 |
|
| 278 |
return $this->success([ |
| 279 |
'redirect_id' => $redirect_id, |
| 280 |
'deleted' => true |
| 281 |
], 'Redirect deleted successfully'); |
| 282 |
} |
| 283 |
} |
| 284 |
|
| 285 |
/** |
| 286 |
* Update Redirect Tool |
| 287 |
*/ |
| 288 |
class MCP_Tool_Update_Redirect extends MCP_Tool_Base { |
| 289 |
|
| 290 |
public function get_name() { |
| 291 |
return 'wordpress_update_redirect'; |
| 292 |
} |
| 293 |
|
| 294 |
public function get_description() { |
| 295 |
return 'Update an existing redirect'; |
| 296 |
} |
| 297 |
|
| 298 |
public function get_input_schema() { |
| 299 |
return [ |
| 300 |
'type' => 'object', |
| 301 |
'properties' => [ |
| 302 |
'redirect_id' => [ |
| 303 |
'type' => 'integer', |
| 304 |
'description' => 'Redirect ID to update', |
| 305 |
'minimum' => 1 |
| 306 |
], |
| 307 |
'destination' => [ |
| 308 |
'type' => 'string', |
| 309 |
'description' => 'New destination URL (optional)' |
| 310 |
], |
| 311 |
'type' => [ |
| 312 |
'type' => 'integer', |
| 313 |
'description' => 'New redirect HTTP code (optional)', |
| 314 |
'enum' => [301, 302] |
| 315 |
], |
| 316 |
'status' => [ |
| 317 |
'type' => 'string', |
| 318 |
'description' => 'New status (optional)', |
| 319 |
'enum' => ['active', 'inactive'] |
| 320 |
] |
| 321 |
], |
| 322 |
'required' => ['redirect_id'] |
| 323 |
]; |
| 324 |
} |
| 325 |
|
| 326 |
public function execute($params) { |
| 327 |
$this->validate_params($params); |
| 328 |
$this->require_capability('manage_options'); |
| 329 |
|
| 330 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-database.php'; |
| 331 |
$db = new Metasync_Redirection_Database(); |
| 332 |
|
| 333 |
$redirect_id = $this->sanitize_integer($params['redirect_id']); |
| 334 |
|
| 335 |
// Verify redirect exists |
| 336 |
$redirect = $db->find($redirect_id); |
| 337 |
if (!$redirect) { |
| 338 |
throw new Exception(sprintf("Redirect not found: %d", absint($redirect_id))); |
| 339 |
} |
| 340 |
|
| 341 |
// Build update args |
| 342 |
if (!class_exists('Metasync_Redirection_Validator')) { |
| 343 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection-validator.php'; |
| 344 |
} |
| 345 |
$update_args = ['updated_at' => current_time('mysql')]; |
| 346 |
// Declared up front so the later loop-guard and reachability blocks — |
| 347 |
// which run under the same isset() condition — have a defined value. |
| 348 |
$destination = ''; |
| 349 |
|
| 350 |
if (isset($params['destination'])) { |
| 351 |
$destination = $this->sanitize_url($params['destination']); |
| 352 |
if (!empty($destination) && !Metasync_Redirection_Validator::is_safe_destination_syntax($destination)) { |
| 353 |
return [ |
| 354 |
'error' => 'invalid_destination_syntax', |
| 355 |
'message' => 'Destination URL contains invalid characters (backslashes or protocol-relative hosts are not accepted).', |
| 356 |
]; |
| 357 |
} |
| 358 |
if (!get_option('metasync_allow_external_redirects', 0) && !empty($destination) && wp_validate_redirect($destination, '') !== $destination) { |
| 359 |
return [ |
| 360 |
'error' => 'external_destination', |
| 361 |
'message' => 'Destination URL must be on this site. Enable "Allow External Redirects" in plugin settings to permit off-site redirects.', |
| 362 |
]; |
| 363 |
} |
| 364 |
$update_args['url_redirect_to'] = $destination; |
| 365 |
} |
| 366 |
|
| 367 |
if (isset($params['type'])) { |
| 368 |
$update_args['http_code'] = $this->sanitize_integer($params['type']); |
| 369 |
} |
| 370 |
|
| 371 |
if (isset($params['status'])) { |
| 372 |
$update_args['status'] = $this->sanitize_string($params['status']); |
| 373 |
} |
| 374 |
|
| 375 |
// Loop guard, mirroring the create tool: updating A→B while B→A |
| 376 |
// already exists wires up an instant ping-pong. 410/451 send no |
| 377 |
// Location header, so they are exempt. |
| 378 |
if (isset($params['destination'])) { |
| 379 |
$effective_code = isset($update_args['http_code']) ? (int) $update_args['http_code'] : (int) $redirect->http_code; |
| 380 |
if (!in_array($effective_code, [410, 451], true)) { |
| 381 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection.php'; |
| 382 |
$db_ref = $db; |
| 383 |
$redirection_helper = new Metasync_Redirection($db_ref); |
| 384 |
$stored_sources = json_decode((string) $redirect->sources_from, true); |
| 385 |
if ($stored_sources === null && (string) $redirect->sources_from !== 'null') { |
| 386 |
$stored_sources = unserialize($redirect->sources_from, ['allowed_classes' => false]); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize |
| 387 |
} |
| 388 |
if (is_array($stored_sources)) { |
| 389 |
foreach ($stored_sources as $stored_key => $stored_value) { |
| 390 |
$source = is_int($stored_key) ? (string) $stored_value : (string) $stored_key; |
| 391 |
$loop_chain = []; |
| 392 |
if ($redirection_helper->would_create_loop($source, $destination, $loop_chain)) { |
| 393 |
return [ |
| 394 |
'error' => 'loop_detected', |
| 395 |
'chain' => $loop_chain, |
| 396 |
]; |
| 397 |
} |
| 398 |
} |
| 399 |
} |
| 400 |
} |
| 401 |
} |
| 402 |
|
| 403 |
// Update redirect |
| 404 |
$result = $db->update($update_args, $redirect_id); |
| 405 |
|
| 406 |
if ($result === false) { |
| 407 |
throw new Exception('Failed to update redirect'); |
| 408 |
} |
| 409 |
|
| 410 |
// Non-blocking destination reachability check — surface a warning, never block the update. |
| 411 |
$dest_warning = null; |
| 412 |
if (isset($params['destination'])) { |
| 413 |
require_once plugin_dir_path(dirname(dirname(__FILE__))) . 'redirections/class-metasync-redirection.php'; |
| 414 |
$db_ref = $db; |
| 415 |
$effective_code = isset($update_args['http_code']) ? (int) $update_args['http_code'] : (int) $redirect->http_code; |
| 416 |
$effective_pattern = isset($redirect->pattern_type) ? $redirect->pattern_type : 'exact'; |
| 417 |
$dest_warning = (new Metasync_Redirection($db_ref))->destination_resolves_warning($destination, $effective_code, $effective_pattern); |
| 418 |
} |
| 419 |
|
| 420 |
// Get updated redirect (sources_from may be JSON or legacy serialized in DB) |
| 421 |
$updated = $db->find($redirect_id); |
| 422 |
$source = null; |
| 423 |
if ( ! empty( $updated->sources_from ) ) { |
| 424 |
// Try JSON first; fall back to unserialize for legacy DB records |
| 425 |
$sources = json_decode( $updated->sources_from, true ); |
| 426 |
if ( $sources === null && $updated->sources_from !== 'null' ) { |
| 427 |
$sources = unserialize( $updated->sources_from, ['allowed_classes' => false] ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.serialize_unserialize |
| 428 |
} |
| 429 |
if ( is_array( $sources ) && ! empty( $sources ) ) { |
| 430 |
$keys = array_keys( $sources ); |
| 431 |
$source = is_int( $keys[0] ) ? $sources[ $keys[0] ] : $keys[0]; |
| 432 |
} |
| 433 |
} |
| 434 |
|
| 435 |
$success_data = [ |
| 436 |
'redirect_id' => $redirect_id, |
| 437 |
'source' => $source, |
| 438 |
'destination' => $updated->url_redirect_to, |
| 439 |
'type' => $updated->http_code, |
| 440 |
'status' => $updated->status |
| 441 |
]; |
| 442 |
if ($dest_warning !== null) { |
| 443 |
$success_data['warning'] = $dest_warning; |
| 444 |
} |
| 445 |
|
| 446 |
return $this->success($success_data, 'Redirect updated successfully'); |
| 447 |
} |
| 448 |
} |
| 449 |
|
