| 1 |
<?php |
| 2 |
/** |
| 3 |
* Token Endpoint. |
| 4 |
* |
| 5 |
* Handles POST /oauth/token for two grant types: |
| 6 |
* - authorization_code: PKCE verification → create Application Password → issue JWT pair. |
| 7 |
* - refresh_token: verify refresh JWT → revocation check → issue new access JWT. |
| 8 |
* |
| 9 |
* Raw Application Passwords are never stored and are discarded immediately |
| 10 |
* after creation. Only the UUID is retained inside the JWT claims for |
| 11 |
* revocation checking. |
| 12 |
*/ |
| 13 |
|
| 14 |
declare(strict_types=1); |
| 15 |
|
| 16 |
namespace WPMedia\MCP\OAuth\Auth; |
| 17 |
|
| 18 |
use WPMedia\MCP\OAuth\Logging\McpLogger; |
| 19 |
|
| 20 |
class TokenEndpoint { |
| 21 |
use ParseBodyTrait; |
| 22 |
|
| 23 |
/** |
| 24 |
* User-meta key prefix storing the currently valid refresh-token id (jti) |
| 25 |
* for a session. The session is identified by its Application Password UUID, |
| 26 |
* so the full key is REFRESH_JTI_META_PREFIX . $app_pass_uuid. |
| 27 |
*/ |
| 28 |
const REFRESH_JTI_META_PREFIX = 'mcp_refresh_jti_'; |
| 29 |
|
| 30 |
/** |
| 31 |
* Maximum number of concurrent MCP sessions (Application Passwords) retained |
| 32 |
* per user per client. Every successful code exchange mints a new Application |
| 33 |
* Password, so a client that re-runs the authorize→token flow repeatedly would |
| 34 |
* otherwise accumulate unbounded rows — bloating the user's Application |
| 35 |
* Passwords screen and slowing the per-request revocation lookup in |
| 36 |
* OAuthHttpTransport, which scans all of the user's Application Passwords. When |
| 37 |
* a new session would exceed this cap, the oldest sessions for that client are |
| 38 |
* evicted first. |
| 39 |
*/ |
| 40 |
const MAX_SESSIONS_PER_CLIENT = 5; |
| 41 |
|
| 42 |
/** |
| 43 |
* Handle the token request. |
| 44 |
* |
| 45 |
* @return void |
| 46 |
*/ |
| 47 |
public function handle_request(): void { |
| 48 |
$request_method = isset( $_SERVER['REQUEST_METHOD'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) : ''; |
| 49 |
$content_type = isset( $_SERVER['CONTENT_TYPE'] ) ? sanitize_text_field( wp_unslash( $_SERVER['CONTENT_TYPE'] ) ) : ''; |
| 50 |
|
| 51 |
McpLogger::log( |
| 52 |
'TOKEN', |
| 53 |
'token request received', |
| 54 |
[ |
| 55 |
'method' => $request_method, |
| 56 |
'content_type' => $content_type, |
| 57 |
'remote_addr' => isset( $_SERVER['REMOTE_ADDR'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REMOTE_ADDR'] ) ) : '', |
| 58 |
'user_agent' => isset( $_SERVER['HTTP_USER_AGENT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) ) : '', |
| 59 |
'headers' => McpLogger::safe_request_headers(), |
| 60 |
'body' => McpLogger::safe_request_body(), |
| 61 |
] |
| 62 |
); |
| 63 |
|
| 64 |
if ( 'POST' !== $request_method ) { |
| 65 |
McpLogger::log( 'TOKEN', 'rejected: wrong method', [ 'method' => $request_method ] ); |
| 66 |
$this->send_error( 405, 'invalid_request', 'Method not allowed.' ); |
| 67 |
return; |
| 68 |
} |
| 69 |
|
| 70 |
$body = $this->parse_body(); |
| 71 |
|
| 72 |
$grant_type = sanitize_text_field( $body['grant_type'] ?? '' ); |
| 73 |
|
| 74 |
McpLogger::log( 'TOKEN', 'grant_type received', [ 'grant_type' => $grant_type ] ); |
| 75 |
|
| 76 |
if ( 'authorization_code' === $grant_type ) { |
| 77 |
$this->handle_authorization_code( $body ); |
| 78 |
} elseif ( 'refresh_token' === $grant_type ) { |
| 79 |
$this->handle_refresh_token( $body ); |
| 80 |
} else { |
| 81 |
McpLogger::log( 'TOKEN', 'rejected: unsupported grant_type', [ 'grant_type' => $grant_type ] ); |
| 82 |
$this->send_error( 400, 'unsupported_grant_type' ); |
| 83 |
} |
| 84 |
} |
| 85 |
|
| 86 |
/** |
| 87 |
* Exchange an auth code for a JWT pair. |
| 88 |
* |
| 89 |
* @param array<string, mixed> $body Parsed request body. |
| 90 |
* @return void |
| 91 |
*/ |
| 92 |
private function handle_authorization_code( array $body ): void { |
| 93 |
$code = sanitize_text_field( $body['code'] ?? '' ); |
| 94 |
$code_verifier = sanitize_text_field( $body['code_verifier'] ?? '' ); |
| 95 |
$redirect_uri = esc_url_raw( $body['redirect_uri'] ?? '' ); |
| 96 |
|
| 97 |
McpLogger::log( |
| 98 |
'TOKEN', |
| 99 |
'authorization_code exchange: params', |
| 100 |
[ |
| 101 |
'has_code' => '' !== $code ? 'yes' : 'no', |
| 102 |
'has_code_verifier' => '' !== $code_verifier ? 'yes' : 'no', |
| 103 |
'redirect_uri' => $redirect_uri, |
| 104 |
] |
| 105 |
); |
| 106 |
|
| 107 |
if ( '' === $code || '' === $code_verifier ) { |
| 108 |
McpLogger::log( 'TOKEN', 'rejected: missing code or code_verifier' ); |
| 109 |
$this->send_error( 400, 'invalid_request', 'code and code_verifier are required.' ); |
| 110 |
return; |
| 111 |
} |
| 112 |
|
| 113 |
// Look up the single-use code, then atomically consume it. delete_transient() |
| 114 |
// returns true for only one caller when two requests race for the same code |
| 115 |
// (delete_option / wp_cache_delete report the row/key they actually removed), |
| 116 |
// so a double-submitted or replayed code is rejected here rather than minting |
| 117 |
// a second session. |
| 118 |
$code_key = 'mcp_oauth_code_' . $code; |
| 119 |
$code_data = get_transient( $code_key ); |
| 120 |
|
| 121 |
if ( false === $code_data || ! is_array( $code_data ) ) { |
| 122 |
McpLogger::log( 'TOKEN', 'rejected: auth code transient missing or expired (60 s window)' ); |
| 123 |
$this->send_error( 400, 'invalid_grant', 'Code is invalid or has expired.' ); |
| 124 |
return; |
| 125 |
} |
| 126 |
|
| 127 |
if ( ! delete_transient( $code_key ) ) { |
| 128 |
McpLogger::log( 'TOKEN', 'rejected: auth code already consumed (concurrent redemption)' ); |
| 129 |
$this->send_error( 400, 'invalid_grant', 'Code is invalid or has expired.' ); |
| 130 |
return; |
| 131 |
} |
| 132 |
|
| 133 |
// Verify PKCE S256: BASE64URL(SHA256(verifier)) must equal stored challenge. |
| 134 |
$expected = JWT::base64url_encode( hash( 'sha256', $code_verifier, true ) ); |
| 135 |
|
| 136 |
if ( ! hash_equals( (string) $code_data['code_challenge'], $expected ) ) { |
| 137 |
McpLogger::log( 'TOKEN', 'rejected: PKCE code_verifier does not match challenge' ); |
| 138 |
$this->send_error( 400, 'invalid_grant', 'PKCE code_verifier does not match challenge.' ); |
| 139 |
return; |
| 140 |
} |
| 141 |
|
| 142 |
// redirect_uri is required whenever it was included in the authorization request |
| 143 |
// (OAuth 2.1 §4.1.3). AuthorizeEndpoint always requires it, so code_data always |
| 144 |
// contains a non-empty value. Exact match is enforced; the client must send the |
| 145 |
// same runtime URI (including ephemeral port for loopback) it used at authorize time. |
| 146 |
if ( $redirect_uri !== (string) $code_data['redirect_uri'] ) { |
| 147 |
McpLogger::log( |
| 148 |
'TOKEN', |
| 149 |
'rejected: redirect_uri missing or does not match authorization request', |
| 150 |
[ |
| 151 |
'provided' => $redirect_uri, |
| 152 |
'stored' => $code_data['redirect_uri'], |
| 153 |
] |
| 154 |
); |
| 155 |
$this->send_error( 400, 'invalid_grant', 'redirect_uri is required and must match the authorization request.' ); |
| 156 |
return; |
| 157 |
} |
| 158 |
|
| 159 |
$user_id = (int) $code_data['user_id']; |
| 160 |
$client_id = (string) ( $code_data['client_id'] ?? '' ); |
| 161 |
|
| 162 |
// The Application Password name is required by WordPress core and must be |
| 163 |
// non-empty. Fall back to the client host when the CIMD document omitted a |
| 164 |
// client_name so a sparse-but-valid client cannot break the token exchange. |
| 165 |
$client_name = (string) ( $code_data['client_name'] ?? '' ); |
| 166 |
if ( '' === $client_name ) { |
| 167 |
$client_name = (string) wp_parse_url( $client_id, PHP_URL_HOST ); |
| 168 |
} |
| 169 |
if ( '' === $client_name ) { |
| 170 |
$client_name = 'MCP Client'; |
| 171 |
} |
| 172 |
|
| 173 |
McpLogger::log( 'TOKEN', 'PKCE verified — creating Application Password', [ 'user_id' => $user_id ] ); |
| 174 |
|
| 175 |
// Bound the number of sessions this client can stockpile before adding one more. |
| 176 |
$this->prune_sessions( $user_id, $client_id ); |
| 177 |
|
| 178 |
// Create a WordPress Application Password (raw password is discarded). |
| 179 |
$result = \WP_Application_Passwords::create_new_application_password( |
| 180 |
$user_id, |
| 181 |
[ |
| 182 |
'name' => $client_name, |
| 183 |
'app_id' => $client_id, |
| 184 |
], |
| 185 |
); |
| 186 |
|
| 187 |
if ( is_wp_error( $result ) ) { |
| 188 |
McpLogger::log( |
| 189 |
'TOKEN', |
| 190 |
'server_error: Application Password creation failed', |
| 191 |
[ |
| 192 |
'wp_error_code' => $result->get_error_code(), |
| 193 |
'wp_error_message' => $result->get_error_message(), |
| 194 |
'user_id' => $user_id, |
| 195 |
] |
| 196 |
); |
| 197 |
$this->send_error( 500, 'server_error', 'Could not create MCP session.' ); |
| 198 |
return; |
| 199 |
} |
| 200 |
|
| 201 |
// create_new_application_password() returns [raw_password, metadata]. Raw password is discarded. |
| 202 |
$app_pass_uuid = (string) $result[1]['uuid']; |
| 203 |
|
| 204 |
McpLogger::log( |
| 205 |
'TOKEN', |
| 206 |
'Application Password created — issuing token pair', |
| 207 |
[ |
| 208 |
'user_id' => $user_id, |
| 209 |
'app_pass_uuid' => $app_pass_uuid, |
| 210 |
] |
| 211 |
); |
| 212 |
|
| 213 |
$this->issue_token_pair( $user_id, $app_pass_uuid, $client_id ); |
| 214 |
} |
| 215 |
|
| 216 |
/** |
| 217 |
* Refresh an access token using a valid refresh JWT. |
| 218 |
* |
| 219 |
* @param array<string, mixed> $body Parsed request body. |
| 220 |
* @return void |
| 221 |
*/ |
| 222 |
private function handle_refresh_token( array $body ): void { |
| 223 |
$refresh_token = sanitize_text_field( $body['refresh_token'] ?? '' ); |
| 224 |
|
| 225 |
McpLogger::log( 'TOKEN', 'refresh_token grant: validating', [ 'has_refresh_token' => '' !== $refresh_token ? 'yes' : 'no' ] ); |
| 226 |
|
| 227 |
if ( '' === $refresh_token ) { |
| 228 |
McpLogger::log( 'TOKEN', 'rejected: refresh_token missing' ); |
| 229 |
$this->send_error( 400, 'invalid_request', 'refresh_token is required.' ); |
| 230 |
return; |
| 231 |
} |
| 232 |
|
| 233 |
$secret = SecretManager::get_secret(); |
| 234 |
$claims = JWT::decode( $refresh_token, $secret ); |
| 235 |
|
| 236 |
if ( null === $claims || 'refresh' !== ( $claims['type'] ?? '' ) ) { |
| 237 |
McpLogger::log( |
| 238 |
'TOKEN', |
| 239 |
'rejected: refresh token decode failed or wrong type', |
| 240 |
[ |
| 241 |
'claims_null' => null === $claims ? 'yes' : 'no', |
| 242 |
'type' => null !== $claims ? ( $claims['type'] ?? '(missing)' ) : 'n/a', |
| 243 |
] |
| 244 |
); |
| 245 |
$this->send_error( 401, 'invalid_token', 'Refresh token is invalid or expired.' ); |
| 246 |
return; |
| 247 |
} |
| 248 |
|
| 249 |
// Verify the token was issued by this site. A staging clone sharing the same |
| 250 |
// JWT secret would otherwise allow cross-site token replay. |
| 251 |
$token_iss = (string) ( $claims['iss'] ?? '' ); |
| 252 |
if ( home_url() !== $token_iss ) { |
| 253 |
McpLogger::log( |
| 254 |
'TOKEN', |
| 255 |
'rejected: refresh token issuer mismatch', |
| 256 |
[ |
| 257 |
'token_iss' => $token_iss, |
| 258 |
'expected_iss' => home_url(), |
| 259 |
] |
| 260 |
); |
| 261 |
$this->send_error( 401, 'invalid_token', 'Refresh token was not issued by this server.' ); |
| 262 |
return; |
| 263 |
} |
| 264 |
|
| 265 |
$user_id = (int) $claims['sub']; |
| 266 |
$app_pass_uuid = (string) ( $claims['app_pass_id'] ?? '' ); |
| 267 |
$client_id = (string) ( $claims['client_id'] ?? '' ); |
| 268 |
|
| 269 |
McpLogger::log( |
| 270 |
'TOKEN', |
| 271 |
'refresh token decoded — checking revocation', |
| 272 |
[ |
| 273 |
'user_id' => $user_id, |
| 274 |
'app_pass_uuid' => $app_pass_uuid, |
| 275 |
] |
| 276 |
); |
| 277 |
|
| 278 |
// Revocation check: if the Application Password was deleted the session is gone. |
| 279 |
$app_pass = \WP_Application_Passwords::get_user_application_password( $user_id, $app_pass_uuid ); |
| 280 |
|
| 281 |
if ( ! is_array( $app_pass ) ) { |
| 282 |
// Session is gone; drop the now-orphaned rotation marker too. |
| 283 |
delete_user_meta( $user_id, self::REFRESH_JTI_META_PREFIX . $app_pass_uuid ); |
| 284 |
McpLogger::log( |
| 285 |
'TOKEN', |
| 286 |
'rejected: Application Password revoked or not found', |
| 287 |
[ |
| 288 |
'user_id' => $user_id, |
| 289 |
'app_pass_uuid' => $app_pass_uuid, |
| 290 |
] |
| 291 |
); |
| 292 |
$this->send_error( 401, 'invalid_token', 'MCP session has been revoked.' ); |
| 293 |
return; |
| 294 |
} |
| 295 |
|
| 296 |
// Refresh-token rotation / reuse detection (OAuth 2.1 §4.3.1, RFC 6819 §5.2.2.3). |
| 297 |
// Each issued refresh token carries a unique jti; only the most recently |
| 298 |
// issued jti for this session is accepted. Presenting any other (i.e. an |
| 299 |
// already-rotated, previously-consumed) refresh token means the token has |
| 300 |
// leaked and is being replayed — revoke the whole session so the attacker |
| 301 |
// and the legitimate client are both forced to re-authenticate. |
| 302 |
$presented_jti = (string) ( $claims['jti'] ?? '' ); |
| 303 |
$current_jti = (string) get_user_meta( $user_id, self::REFRESH_JTI_META_PREFIX . $app_pass_uuid, true ); |
| 304 |
|
| 305 |
if ( '' === $presented_jti || '' === $current_jti || ! hash_equals( $current_jti, $presented_jti ) ) { |
| 306 |
McpLogger::log( |
| 307 |
'TOKEN', |
| 308 |
'SECURITY: refresh token reuse detected — revoking session', |
| 309 |
[ |
| 310 |
'user_id' => $user_id, |
| 311 |
'app_pass_uuid' => $app_pass_uuid, |
| 312 |
'has_presented' => '' !== $presented_jti ? 'yes' : 'no', |
| 313 |
'has_current' => '' !== $current_jti ? 'yes' : 'no', |
| 314 |
] |
| 315 |
); |
| 316 |
// Deleting the Application Password fires wp_delete_application_password, |
| 317 |
// which purges the rotation marker via purge_refresh_jti_meta(). |
| 318 |
\WP_Application_Passwords::delete_application_password( $user_id, $app_pass_uuid ); |
| 319 |
$this->send_error( 401, 'invalid_grant', 'Refresh token has been revoked.' ); |
| 320 |
return; |
| 321 |
} |
| 322 |
|
| 323 |
McpLogger::log( |
| 324 |
'TOKEN', |
| 325 |
'refresh token valid — issuing new token pair', |
| 326 |
[ |
| 327 |
'user_id' => $user_id, |
| 328 |
'app_pass_uuid' => $app_pass_uuid, |
| 329 |
] |
| 330 |
); |
| 331 |
|
| 332 |
// Issue a new access token and rotate the refresh token: issue_token_pair() |
| 333 |
// mints a fresh jti and overwrites the stored marker, invalidating the |
| 334 |
// refresh token just presented. |
| 335 |
$this->issue_token_pair( $user_id, $app_pass_uuid, $client_id ); |
| 336 |
} |
| 337 |
|
| 338 |
/** |
| 339 |
* Build and return an access + refresh JWT pair. |
| 340 |
* |
| 341 |
* @param int $user_id WordPress user ID. |
| 342 |
* @param string $app_pass_uuid UUID of the Application Password. |
| 343 |
* @param string $client_id Client ID URL from the CIMD record. |
| 344 |
* @return void |
| 345 |
*/ |
| 346 |
private function issue_token_pair( int $user_id, string $app_pass_uuid, string $client_id = '' ): void { |
| 347 |
$secret = SecretManager::get_secret(); |
| 348 |
// iss is home_url() (the Site Address), matching the base get_rest_url() |
| 349 |
// uses for aud and where the OAuth/.well-known routes are actually served. |
| 350 |
$issuer = home_url(); |
| 351 |
$now = time(); |
| 352 |
$aud = get_rest_url( null, 'mcp/mcp-oauth-server' ); |
| 353 |
|
| 354 |
// Mint a fresh refresh-token id and persist it as the only one accepted |
| 355 |
// for this session. This overwrites any prior marker, so the previously |
| 356 |
// issued refresh token (if any) is invalidated the instant this returns. |
| 357 |
$refresh_jti = bin2hex( random_bytes( 16 ) ); |
| 358 |
update_user_meta( $user_id, self::REFRESH_JTI_META_PREFIX . $app_pass_uuid, $refresh_jti ); |
| 359 |
|
| 360 |
$access_payload = [ |
| 361 |
'iss' => $issuer, |
| 362 |
'aud' => $aud, |
| 363 |
'sub' => (string) $user_id, |
| 364 |
'app_pass_id' => $app_pass_uuid, |
| 365 |
'client_id' => $client_id, |
| 366 |
'scope' => 'mcp', |
| 367 |
'iat' => $now, |
| 368 |
'exp' => $now + HOUR_IN_SECONDS, |
| 369 |
]; |
| 370 |
|
| 371 |
$refresh_payload = [ |
| 372 |
'iss' => $issuer, |
| 373 |
'sub' => (string) $user_id, |
| 374 |
'app_pass_id' => $app_pass_uuid, |
| 375 |
'client_id' => $client_id, |
| 376 |
'type' => 'refresh', |
| 377 |
'jti' => $refresh_jti, |
| 378 |
'iat' => $now, |
| 379 |
'exp' => $now + ( 30 * DAY_IN_SECONDS ), |
| 380 |
]; |
| 381 |
|
| 382 |
$access_token = JWT::encode( $access_payload, $secret ); |
| 383 |
$refresh_token = JWT::encode( $refresh_payload, $secret ); |
| 384 |
|
| 385 |
McpLogger::log( |
| 386 |
'TOKEN', |
| 387 |
'token pair issued', |
| 388 |
[ |
| 389 |
'user_id' => $user_id, |
| 390 |
'app_pass_uuid' => $app_pass_uuid, |
| 391 |
'access_exp' => $access_payload['exp'], |
| 392 |
'refresh_exp' => $refresh_payload['exp'], |
| 393 |
'access_token_len' => strlen( $access_token ), |
| 394 |
] |
| 395 |
); |
| 396 |
|
| 397 |
nocache_headers(); |
| 398 |
wp_send_json( |
| 399 |
[ |
| 400 |
'access_token' => $access_token, |
| 401 |
'token_type' => 'Bearer', |
| 402 |
'expires_in' => HOUR_IN_SECONDS, |
| 403 |
'refresh_token' => $refresh_token, |
| 404 |
'scope' => 'mcp', |
| 405 |
] |
| 406 |
); |
| 407 |
} |
| 408 |
|
| 409 |
/** |
| 410 |
* Evict the oldest MCP sessions for a user+client so that creating one more |
| 411 |
* stays within MAX_SESSIONS_PER_CLIENT. |
| 412 |
* |
| 413 |
* Only Application Passwords this feature created are considered — they are |
| 414 |
* matched by the `app_id` we set to the client_id at creation time, so |
| 415 |
* Application Passwords the user created for other integrations are never |
| 416 |
* touched. Deleting one fires `wp_delete_application_password`, which removes |
| 417 |
* its `mcp_refresh_jti_*` meta via purge_refresh_jti_meta(), so no orphaned |
| 418 |
* rows are left behind. |
| 419 |
* |
| 420 |
* @param int $user_id WordPress user ID. |
| 421 |
* @param string $client_id Client ID URL the sessions belong to. |
| 422 |
* @return void |
| 423 |
*/ |
| 424 |
private function prune_sessions( int $user_id, string $client_id ): void { |
| 425 |
if ( '' === $client_id ) { |
| 426 |
return; |
| 427 |
} |
| 428 |
|
| 429 |
$passwords = \WP_Application_Passwords::get_user_application_passwords( $user_id ); |
| 430 |
|
| 431 |
// Keep only this feature's Application Passwords for this client. |
| 432 |
$ours = array_values( |
| 433 |
array_filter( |
| 434 |
$passwords, |
| 435 |
static function ( $item ) use ( $client_id ) { |
| 436 |
return $item['app_id'] === $client_id; |
| 437 |
} |
| 438 |
) |
| 439 |
); |
| 440 |
|
| 441 |
// Below the cap: the new session about to be created still fits. |
| 442 |
if ( count( $ours ) < self::MAX_SESSIONS_PER_CLIENT ) { |
| 443 |
return; |
| 444 |
} |
| 445 |
|
| 446 |
// Oldest first. |
| 447 |
usort( |
| 448 |
$ours, |
| 449 |
static function ( $a, $b ) { |
| 450 |
return $a['created'] <=> $b['created']; |
| 451 |
} |
| 452 |
); |
| 453 |
|
| 454 |
// Evict enough of the oldest so that, after the new one is created, the |
| 455 |
// total sits at exactly MAX_SESSIONS_PER_CLIENT. |
| 456 |
$evict_count = ( count( $ours ) - self::MAX_SESSIONS_PER_CLIENT ) + 1; |
| 457 |
|
| 458 |
for ( $i = 0; $i < $evict_count; $i++ ) { |
| 459 |
$uuid = (string) ( $ours[ $i ]['uuid'] ?? '' ); |
| 460 |
if ( '' === $uuid ) { |
| 461 |
continue; |
| 462 |
} |
| 463 |
|
| 464 |
\WP_Application_Passwords::delete_application_password( $user_id, $uuid ); |
| 465 |
|
| 466 |
McpLogger::log( |
| 467 |
'TOKEN', |
| 468 |
'evicted oldest MCP session to enforce per-client cap', |
| 469 |
[ |
| 470 |
'user_id' => $user_id, |
| 471 |
'client_id' => $client_id, |
| 472 |
'app_pass_uuid' => $uuid, |
| 473 |
] |
| 474 |
); |
| 475 |
} |
| 476 |
} |
| 477 |
|
| 478 |
/** |
| 479 |
* Purge the stored refresh-token rotation marker for a deleted session. |
| 480 |
* |
| 481 |
* Hooked on WordPress's `wp_delete_application_password` action so the |
| 482 |
* per-session user meta is removed wherever the Application Password that |
| 483 |
* anchors the session is deleted — the revoke endpoint, the admin page, or |
| 484 |
* WordPress core — leaving no orphaned rows behind. |
| 485 |
* |
| 486 |
* @param int $user_id WordPress user ID. |
| 487 |
* @param array<string, mixed> $item The Application Password record being deleted. |
| 488 |
* @return void |
| 489 |
*/ |
| 490 |
public function purge_refresh_jti_meta( int $user_id, array $item ): void { |
| 491 |
$uuid = (string) ( $item['uuid'] ?? '' ); |
| 492 |
|
| 493 |
if ( '' === $uuid ) { |
| 494 |
return; |
| 495 |
} |
| 496 |
|
| 497 |
delete_user_meta( $user_id, self::REFRESH_JTI_META_PREFIX . $uuid ); |
| 498 |
} |
| 499 |
|
| 500 |
/** |
| 501 |
* Send a JSON error response and exit. |
| 502 |
* |
| 503 |
* @param int $status HTTP status code. |
| 504 |
* @param string $error OAuth error code. |
| 505 |
* @param string $description Optional human-readable description. |
| 506 |
* @return void |
| 507 |
*/ |
| 508 |
private function send_error( int $status, string $error, string $description = '' ): void { |
| 509 |
status_header( $status ); |
| 510 |
nocache_headers(); |
| 511 |
$body = [ 'error' => $error ]; |
| 512 |
if ( '' !== $description ) { |
| 513 |
$body['error_description'] = $description; |
| 514 |
} |
| 515 |
wp_send_json( $body ); |
| 516 |
} |
| 517 |
} |
| 518 |
|
