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| 1 | <?php |
| 2 | /** |
| 3 | * The Jetpack Connection Tokens class file. |
| 4 | * |
| 5 | * @package automattic/jetpack-connection |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Connection; |
| 9 | |
| 10 | use Automattic\Jetpack\Constants; |
| 11 | use Automattic\Jetpack\Roles; |
| 12 | use DateInterval; |
| 13 | use DateTime; |
| 14 | use Exception; |
| 15 | use Jetpack_Options; |
| 16 | use WP_Error; |
| 17 | |
| 18 | /** |
| 19 | * The Jetpack Connection Tokens class that manages tokens. |
| 20 | */ |
| 21 | class Tokens { |
| 22 | |
| 23 | const MAGIC_NORMAL_TOKEN_KEY = ';normal;'; |
| 24 | |
| 25 | /** |
| 26 | * Datetime format. |
| 27 | */ |
| 28 | const DATE_FORMAT_ATOM = 'Y-m-d\TH:i:sP'; |
| 29 | |
| 30 | /** |
| 31 | * Deletes all connection tokens and transients from the local Jetpack site. |
| 32 | */ |
| 33 | public function delete_all() { |
| 34 | Jetpack_Options::delete_option( |
| 35 | array( |
| 36 | 'blog_token', |
| 37 | 'user_token', |
| 38 | 'user_tokens', |
| 39 | ) |
| 40 | ); |
| 41 | |
| 42 | $this->remove_lock(); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Perform the API request to validate the blog and user tokens. |
| 47 | * |
| 48 | * @param int|null $user_id ID of the user we need to validate token for. Current user's ID by default. |
| 49 | * |
| 50 | * @return array|false|WP_Error The API response: `array( 'blog_token_is_healthy' => true|false, 'user_token_is_healthy' => true|false )`. |
| 51 | */ |
| 52 | public function validate( $user_id = null ) { |
| 53 | $blog_id = Jetpack_Options::get_option( 'id' ); |
| 54 | if ( ! $blog_id ) { |
| 55 | return new WP_Error( 'site_not_registered', 'Site not registered.' ); |
| 56 | } |
| 57 | $url = sprintf( |
| 58 | '%s/%s/v%s/%s', |
| 59 | Constants::get_constant( 'JETPACK__WPCOM_JSON_API_BASE' ), |
| 60 | 'wpcom', |
| 61 | '2', |
| 62 | 'sites/' . $blog_id . '/jetpack-token-health' |
| 63 | ); |
| 64 | |
| 65 | $user_token = $this->get_access_token( $user_id ? $user_id : get_current_user_id() ); |
| 66 | $blog_token = $this->get_access_token(); |
| 67 | |
| 68 | // Cannot validate non-existent tokens. |
| 69 | if ( false === $user_token || false === $blog_token ) { |
| 70 | return false; |
| 71 | } |
| 72 | |
| 73 | $method = 'POST'; |
| 74 | $body = array( |
| 75 | 'user_token' => $this->get_signed_token( $user_token ), |
| 76 | 'blog_token' => $this->get_signed_token( $blog_token ), |
| 77 | ); |
| 78 | $response = Client::_wp_remote_request( $url, compact( 'body', 'method' ) ); |
| 79 | |
| 80 | if ( is_wp_error( $response ) || ! wp_remote_retrieve_body( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | $body = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 85 | |
| 86 | return $body ? $body : false; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Perform the API request to validate only the blog. |
| 91 | * |
| 92 | * @return bool|WP_Error Boolean with the test result. WP_Error if test cannot be performed. |
| 93 | */ |
| 94 | public function validate_blog_token() { |
| 95 | $blog_id = Jetpack_Options::get_option( 'id' ); |
| 96 | if ( ! $blog_id ) { |
| 97 | return new WP_Error( 'site_not_registered', 'Site not registered.' ); |
| 98 | } |
| 99 | $url = sprintf( |
| 100 | '%s/%s/v%s/%s', |
| 101 | Constants::get_constant( 'JETPACK__WPCOM_JSON_API_BASE' ), |
| 102 | 'wpcom', |
| 103 | '2', |
| 104 | 'sites/' . $blog_id . '/jetpack-token-health/blog' |
| 105 | ); |
| 106 | |
| 107 | $method = 'GET'; |
| 108 | $response = Client::remote_request( compact( 'url', 'method' ) ); |
| 109 | |
| 110 | if ( is_wp_error( $response ) || ! wp_remote_retrieve_body( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { |
| 111 | return false; |
| 112 | } |
| 113 | |
| 114 | $body = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 115 | |
| 116 | return is_array( $body ) && isset( $body['is_healthy'] ) && true === $body['is_healthy']; |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Obtains the auth token. |
| 121 | * |
| 122 | * @param array $data The request data. |
| 123 | * @param string $token_api_url The URL of the Jetpack "token" API. |
| 124 | * @return object|WP_Error Returns the auth token on success. |
| 125 | * Returns a WP_Error on failure. |
| 126 | */ |
| 127 | public function get( $data, $token_api_url ) { |
| 128 | $roles = new Roles(); |
| 129 | $role = $roles->translate_current_user_to_role(); |
| 130 | |
| 131 | if ( ! $role ) { |
| 132 | return new WP_Error( 'role', __( 'An administrator for this blog must set up the Jetpack connection.', 'jetpack-connection' ) ); |
| 133 | } |
| 134 | |
| 135 | $client_secret = $this->get_access_token(); |
| 136 | if ( ! $client_secret ) { |
| 137 | return new WP_Error( 'client_secret', __( 'You need to register your Jetpack before connecting it.', 'jetpack-connection' ) ); |
| 138 | } |
| 139 | |
| 140 | /** |
| 141 | * Filter the URL of the first time the user gets redirected back to your site for connection |
| 142 | * data processing. |
| 143 | * |
| 144 | * @since 1.7.0 |
| 145 | * @since-jetpack 8.0.0 |
| 146 | * |
| 147 | * @param string $redirect_url Defaults to the site admin URL. |
| 148 | */ |
| 149 | $processing_url = apply_filters( 'jetpack_token_processing_url', admin_url( 'admin.php' ) ); |
| 150 | |
| 151 | $redirect = isset( $data['redirect'] ) ? esc_url_raw( (string) $data['redirect'] ) : ''; |
| 152 | |
| 153 | /** |
| 154 | * Filter the URL to redirect the user back to when the authentication process |
| 155 | * is complete. |
| 156 | * |
| 157 | * @since 1.7.0 |
| 158 | * @since-jetpack 8.0.0 |
| 159 | * |
| 160 | * @param string $redirect_url Defaults to the site URL. |
| 161 | */ |
| 162 | $redirect = apply_filters( 'jetpack_token_redirect_url', $redirect ); |
| 163 | |
| 164 | $redirect_uri = ( 'calypso' === $data['auth_type'] ) |
| 165 | ? $data['redirect_uri'] |
| 166 | : add_query_arg( |
| 167 | array( |
| 168 | 'handler' => 'jetpack-connection-webhooks', |
| 169 | 'action' => 'authorize', |
| 170 | '_wpnonce' => wp_create_nonce( "jetpack-authorize_{$role}_{$redirect}" ), |
| 171 | 'redirect' => $redirect ? rawurlencode( $redirect ) : false, |
| 172 | ), |
| 173 | esc_url( $processing_url ) |
| 174 | ); |
| 175 | |
| 176 | /** |
| 177 | * Filters the token request data. |
| 178 | * |
| 179 | * @since 1.7.0 |
| 180 | * @since-jetpack 8.0.0 |
| 181 | * |
| 182 | * @param array $request_data request data. |
| 183 | */ |
| 184 | $body = apply_filters( |
| 185 | 'jetpack_token_request_body', |
| 186 | array( |
| 187 | 'client_id' => Jetpack_Options::get_option( 'id' ), |
| 188 | 'client_secret' => $client_secret->secret, |
| 189 | 'grant_type' => 'authorization_code', |
| 190 | 'code' => $data['code'], |
| 191 | 'redirect_uri' => $redirect_uri, |
| 192 | ) |
| 193 | ); |
| 194 | |
| 195 | $args = array( |
| 196 | 'method' => 'POST', |
| 197 | 'body' => $body, |
| 198 | 'headers' => array( |
| 199 | 'Accept' => 'application/json', |
| 200 | ), |
| 201 | ); |
| 202 | add_filter( 'http_request_timeout', array( $this, 'return_30' ), PHP_INT_MAX - 1 ); |
| 203 | $response = Client::_wp_remote_request( $token_api_url, $args ); |
| 204 | remove_filter( 'http_request_timeout', array( $this, 'return_30' ), PHP_INT_MAX - 1 ); |
| 205 | |
| 206 | if ( is_wp_error( $response ) ) { |
| 207 | return new WP_Error( 'token_http_request_failed', $response->get_error_message() ); |
| 208 | } |
| 209 | |
| 210 | $code = wp_remote_retrieve_response_code( $response ); |
| 211 | $entity = wp_remote_retrieve_body( $response ); |
| 212 | |
| 213 | if ( $entity ) { |
| 214 | $json = json_decode( $entity ); |
| 215 | } else { |
| 216 | $json = false; |
| 217 | } |
| 218 | |
| 219 | if ( 200 !== $code || ! empty( $json->error ) ) { |
| 220 | if ( empty( $json->error ) ) { |
| 221 | return new WP_Error( 'unknown', '', $code ); |
| 222 | } |
| 223 | |
| 224 | /* translators: Error description string. */ |
| 225 | $error_description = isset( $json->error_description ) ? sprintf( __( 'Error Details: %s', 'jetpack-connection' ), (string) $json->error_description ) : ''; |
| 226 | |
| 227 | return new WP_Error( (string) $json->error, $error_description, $code ); |
| 228 | } |
| 229 | |
| 230 | if ( empty( $json->access_token ) || ! is_scalar( $json->access_token ) ) { |
| 231 | return new WP_Error( 'access_token', '', $code ); |
| 232 | } |
| 233 | |
| 234 | if ( empty( $json->token_type ) || 'X_JETPACK' !== strtoupper( $json->token_type ) ) { |
| 235 | return new WP_Error( 'token_type', '', $code ); |
| 236 | } |
| 237 | |
| 238 | if ( empty( $json->scope ) ) { |
| 239 | return new WP_Error( 'scope', 'No Scope', $code ); |
| 240 | } |
| 241 | |
| 242 | // TODO: get rid of the error silencer. |
| 243 | // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 244 | @list( $role, $hmac ) = explode( ':', $json->scope ); |
| 245 | if ( empty( $role ) || empty( $hmac ) ) { |
| 246 | return new WP_Error( 'scope', 'Malformed Scope', $code ); |
| 247 | } |
| 248 | |
| 249 | if ( $this->sign_role( $role ) !== $json->scope ) { |
| 250 | return new WP_Error( 'scope', 'Invalid Scope', $code ); |
| 251 | } |
| 252 | |
| 253 | $cap = $roles->translate_role_to_cap( $role ); |
| 254 | if ( ! $cap ) { |
| 255 | return new WP_Error( 'scope', 'No Cap', $code ); |
| 256 | } |
| 257 | |
| 258 | if ( ! current_user_can( $cap ) ) { |
| 259 | return new WP_Error( 'scope', 'current_user_cannot', $code ); |
| 260 | } |
| 261 | |
| 262 | return (string) $json->access_token; |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Enters a user token into the user_tokens option |
| 267 | * |
| 268 | * @param int $user_id The user id. |
| 269 | * @param string $token The user token. |
| 270 | * @param bool $is_master_user Whether the user is the master user. |
| 271 | * @return bool |
| 272 | */ |
| 273 | public function update_user_token( $user_id, $token, $is_master_user ) { |
| 274 | // Not designed for concurrent updates. |
| 275 | $user_tokens = $this->get_user_tokens(); |
| 276 | if ( ! is_array( $user_tokens ) ) { |
| 277 | $user_tokens = array(); |
| 278 | } |
| 279 | $user_tokens[ $user_id ] = $token; |
| 280 | if ( $is_master_user ) { |
| 281 | $master_user = $user_id; |
| 282 | $options = compact( 'user_tokens', 'master_user' ); |
| 283 | } else { |
| 284 | $options = compact( 'user_tokens' ); |
| 285 | } |
| 286 | return Jetpack_Options::update_options( $options ); |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * Sign a user role with the master access token. |
| 291 | * If not specified, will default to the current user. |
| 292 | * |
| 293 | * @access public |
| 294 | * |
| 295 | * @param string $role User role. |
| 296 | * @param int $user_id ID of the user. |
| 297 | * @return string Signed user role. |
| 298 | */ |
| 299 | public function sign_role( $role, $user_id = null ) { |
| 300 | if ( empty( $user_id ) ) { |
| 301 | $user_id = (int) get_current_user_id(); |
| 302 | } |
| 303 | |
| 304 | if ( ! $user_id ) { |
| 305 | return false; |
| 306 | } |
| 307 | |
| 308 | $token = $this->get_access_token(); |
| 309 | if ( ! $token || is_wp_error( $token ) ) { |
| 310 | return false; |
| 311 | } |
| 312 | |
| 313 | return $role . ':' . hash_hmac( 'md5', "{$role}|{$user_id}", $token->secret ); |
| 314 | } |
| 315 | |
| 316 | /** |
| 317 | * Increases the request timeout value to 30 seconds. |
| 318 | * |
| 319 | * @return int Returns 30. |
| 320 | */ |
| 321 | public function return_30() { |
| 322 | return 30; |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * Gets the requested token. |
| 327 | * |
| 328 | * Tokens are one of two types: |
| 329 | * 1. Blog Tokens: These are the "main" tokens. Each site typically has one Blog Token, |
| 330 | * though some sites can have multiple "Special" Blog Tokens (see below). These tokens |
| 331 | * are not associated with a user account. They represent the site's connection with |
| 332 | * the Jetpack servers. |
| 333 | * 2. User Tokens: These are "sub-"tokens. Each connected user account has one User Token. |
| 334 | * |
| 335 | * All tokens look like "{$token_key}.{$private}". $token_key is a public ID for the |
| 336 | * token, and $private is a secret that should never be displayed anywhere or sent |
| 337 | * over the network; it's used only for signing things. |
| 338 | * |
| 339 | * Blog Tokens can be "Normal" or "Special". |
| 340 | * * Normal: The result of a normal connection flow. They look like |
| 341 | * "{$random_string_1}.{$random_string_2}" |
| 342 | * That is, $token_key and $private are both random strings. |
| 343 | * Sites only have one Normal Blog Token. Normal Tokens are found in either |
| 344 | * Jetpack_Options::get_option( 'blog_token' ) (usual) or the JETPACK_BLOG_TOKEN |
| 345 | * constant (rare). |
| 346 | * * Special: A connection token for sites that have gone through an alternative |
| 347 | * connection flow. They look like: |
| 348 | * ";{$special_id}{$special_version};{$wpcom_blog_id};.{$random_string}" |
| 349 | * That is, $private is a random string and $token_key has a special structure with |
| 350 | * lots of semicolons. |
| 351 | * Most sites have zero Special Blog Tokens. Special tokens are only found in the |
| 352 | * JETPACK_BLOG_TOKEN constant. |
| 353 | * |
| 354 | * In particular, note that Normal Blog Tokens never start with ";" and that |
| 355 | * Special Blog Tokens always do. |
| 356 | * |
| 357 | * When searching for a matching Blog Tokens, Blog Tokens are examined in the following |
| 358 | * order: |
| 359 | * 1. Defined Special Blog Tokens (via the JETPACK_BLOG_TOKEN constant) |
| 360 | * 2. Stored Normal Tokens (via Jetpack_Options::get_option( 'blog_token' )) |
| 361 | * 3. Defined Normal Tokens (via the JETPACK_BLOG_TOKEN constant) |
| 362 | * |
| 363 | * @param int|false $user_id false: Return the Blog Token. int: Return that user's User Token. |
| 364 | * @param string|false $token_key If provided, check that the token matches the provided input. |
| 365 | * @param bool|true $suppress_errors If true, return a falsy value when the token isn't found; When false, return a descriptive WP_Error when the token isn't found. |
| 366 | * |
| 367 | * @return object|false|WP_Error |
| 368 | */ |
| 369 | public function get_access_token( $user_id = false, $token_key = false, $suppress_errors = true ) { |
| 370 | if ( $this->is_locked() ) { |
| 371 | $this->delete_all(); |
| 372 | return false; |
| 373 | } |
| 374 | |
| 375 | $possible_special_tokens = array(); |
| 376 | $possible_normal_tokens = array(); |
| 377 | $user_tokens = $this->get_user_tokens(); |
| 378 | |
| 379 | if ( $user_id ) { |
| 380 | if ( ! $user_tokens ) { |
| 381 | return $suppress_errors ? false : new WP_Error( 'no_user_tokens', __( 'No user tokens found', 'jetpack-connection' ) ); |
| 382 | } |
| 383 | if ( true === $user_id ) { // connection owner. |
| 384 | $user_id = Jetpack_Options::get_option( 'master_user' ); |
| 385 | if ( ! $user_id ) { |
| 386 | return $suppress_errors ? false : new WP_Error( 'empty_master_user_option', __( 'No primary user defined', 'jetpack-connection' ) ); |
| 387 | } |
| 388 | } |
| 389 | if ( ! isset( $user_tokens[ $user_id ] ) || ! $user_tokens[ $user_id ] ) { |
| 390 | // translators: %s is the user ID. |
| 391 | return $suppress_errors ? false : new WP_Error( 'no_token_for_user', sprintf( __( 'No token for user %d', 'jetpack-connection' ), $user_id ) ); |
| 392 | } |
| 393 | $user_token_chunks = explode( '.', $user_tokens[ $user_id ] ); |
| 394 | if ( empty( $user_token_chunks[1] ) || empty( $user_token_chunks[2] ) ) { |
| 395 | // translators: %s is the user ID. |
| 396 | return $suppress_errors ? false : new WP_Error( 'token_malformed', sprintf( __( 'Token for user %d is malformed', 'jetpack-connection' ), $user_id ) ); |
| 397 | } |
| 398 | if ( $user_token_chunks[2] !== (string) $user_id ) { |
| 399 | // translators: %1$d is the ID of the requested user. %2$d is the user ID found in the token. |
| 400 | return $suppress_errors ? false : new WP_Error( 'user_id_mismatch', sprintf( __( 'Requesting user_id %1$d does not match token user_id %2$d', 'jetpack-connection' ), $user_id, $user_token_chunks[2] ) ); |
| 401 | } |
| 402 | $possible_normal_tokens[] = "{$user_token_chunks[0]}.{$user_token_chunks[1]}"; |
| 403 | } else { |
| 404 | $stored_blog_token = Jetpack_Options::get_option( 'blog_token' ); |
| 405 | if ( $stored_blog_token ) { |
| 406 | $possible_normal_tokens[] = $stored_blog_token; |
| 407 | } |
| 408 | |
| 409 | $defined_tokens_string = Constants::get_constant( 'JETPACK_BLOG_TOKEN' ); |
| 410 | |
| 411 | if ( $defined_tokens_string ) { |
| 412 | $defined_tokens = explode( ',', $defined_tokens_string ); |
| 413 | foreach ( $defined_tokens as $defined_token ) { |
| 414 | if ( ';' === $defined_token[0] ) { |
| 415 | $possible_special_tokens[] = $defined_token; |
| 416 | } else { |
| 417 | $possible_normal_tokens[] = $defined_token; |
| 418 | } |
| 419 | } |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | if ( self::MAGIC_NORMAL_TOKEN_KEY === $token_key ) { |
| 424 | $possible_tokens = $possible_normal_tokens; |
| 425 | } else { |
| 426 | $possible_tokens = array_merge( $possible_special_tokens, $possible_normal_tokens ); |
| 427 | } |
| 428 | |
| 429 | if ( ! $possible_tokens ) { |
| 430 | // If no user tokens were found, it would have failed earlier, so this is about blog token. |
| 431 | return $suppress_errors ? false : new WP_Error( 'no_possible_tokens', __( 'No blog token found', 'jetpack-connection' ) ); |
| 432 | } |
| 433 | |
| 434 | $valid_token = false; |
| 435 | |
| 436 | if ( false === $token_key ) { |
| 437 | // Use first token. |
| 438 | $valid_token = $possible_tokens[0]; |
| 439 | } elseif ( self::MAGIC_NORMAL_TOKEN_KEY === $token_key ) { |
| 440 | // Use first normal token. |
| 441 | $valid_token = $possible_tokens[0]; // $possible_tokens only contains normal tokens because of earlier check. |
| 442 | } else { |
| 443 | // Use the token matching $token_key or false if none. |
| 444 | // Ensure we check the full key. |
| 445 | $token_check = rtrim( $token_key, '.' ) . '.'; |
| 446 | |
| 447 | foreach ( $possible_tokens as $possible_token ) { |
| 448 | if ( hash_equals( substr( $possible_token, 0, strlen( $token_check ) ), $token_check ) ) { |
| 449 | $valid_token = $possible_token; |
| 450 | break; |
| 451 | } |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | if ( ! $valid_token ) { |
| 456 | if ( $user_id ) { |
| 457 | // translators: %d is the user ID. |
| 458 | return $suppress_errors ? false : new WP_Error( 'no_valid_user_token', sprintf( __( 'Invalid token for user %d', 'jetpack-connection' ), $user_id ) ); |
| 459 | } else { |
| 460 | return $suppress_errors ? false : new WP_Error( 'no_valid_blog_token', __( 'Invalid blog token', 'jetpack-connection' ) ); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | return (object) array( |
| 465 | 'secret' => $valid_token, |
| 466 | 'external_user_id' => (int) $user_id, |
| 467 | ); |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * Updates the blog token to a new value. |
| 472 | * |
| 473 | * @access public |
| 474 | * |
| 475 | * @param string $token the new blog token value. |
| 476 | * @return Boolean Whether updating the blog token was successful. |
| 477 | */ |
| 478 | public function update_blog_token( $token ) { |
| 479 | return Jetpack_Options::update_option( 'blog_token', $token ); |
| 480 | } |
| 481 | |
| 482 | /** |
| 483 | * Unlinks the current user from the linked WordPress.com user. |
| 484 | * |
| 485 | * @access public |
| 486 | * @static |
| 487 | * |
| 488 | * @todo Refactor to properly load the XMLRPC client independently. |
| 489 | * |
| 490 | * @param int $user_id The user identifier. |
| 491 | * |
| 492 | * @return bool Whether the disconnection of the user was successful. |
| 493 | */ |
| 494 | public function disconnect_user( $user_id ) { |
| 495 | $tokens = $this->get_user_tokens(); |
| 496 | if ( ! $tokens ) { |
| 497 | return false; |
| 498 | } |
| 499 | |
| 500 | if ( ! isset( $tokens[ $user_id ] ) ) { |
| 501 | return false; |
| 502 | } |
| 503 | |
| 504 | unset( $tokens[ $user_id ] ); |
| 505 | |
| 506 | $this->update_user_tokens( $tokens ); |
| 507 | |
| 508 | return true; |
| 509 | } |
| 510 | |
| 511 | /** |
| 512 | * Returns an array of user_id's that have user tokens for communicating with wpcom. |
| 513 | * Able to select by specific capability. |
| 514 | * |
| 515 | * @deprecated 1.30.0 |
| 516 | * @see Manager::get_connected_users |
| 517 | * |
| 518 | * @param string $capability The capability of the user. |
| 519 | * @param int|null $limit How many connected users to get before returning. |
| 520 | * @return array Array of WP_User objects if found. |
| 521 | */ |
| 522 | public function get_connected_users( $capability = 'any', $limit = null ) { |
| 523 | _deprecated_function( __METHOD__, '1.30.0' ); |
| 524 | return ( new Manager( 'jetpack' ) )->get_connected_users( $capability, $limit ); |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * Fetches a signed token. |
| 529 | * |
| 530 | * @param object $token the token. |
| 531 | * @return WP_Error|string a signed token |
| 532 | */ |
| 533 | public function get_signed_token( $token ) { |
| 534 | if ( ! isset( $token->secret ) || empty( $token->secret ) ) { |
| 535 | return new WP_Error( 'invalid_token' ); |
| 536 | } |
| 537 | |
| 538 | list( $token_key, $token_secret ) = explode( '.', $token->secret ); |
| 539 | |
| 540 | $token_key = sprintf( |
| 541 | '%s:%d:%d', |
| 542 | $token_key, |
| 543 | Constants::get_constant( 'JETPACK__API_VERSION' ), |
| 544 | $token->external_user_id |
| 545 | ); |
| 546 | |
| 547 | $timestamp = time(); |
| 548 | |
| 549 | if ( function_exists( 'wp_generate_password' ) ) { |
| 550 | $nonce = wp_generate_password( 10, false ); |
| 551 | } else { |
| 552 | $nonce = substr( sha1( (string) wp_rand( 0, 1000000 ) ), 0, 10 ); |
| 553 | } |
| 554 | |
| 555 | $normalized_request_string = implode( |
| 556 | "\n", |
| 557 | array( |
| 558 | $token_key, |
| 559 | $timestamp, |
| 560 | $nonce, |
| 561 | ) |
| 562 | ) . "\n"; |
| 563 | |
| 564 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode |
| 565 | $signature = base64_encode( hash_hmac( 'sha1', $normalized_request_string, $token_secret, true ) ); |
| 566 | |
| 567 | $auth = array( |
| 568 | 'token' => $token_key, |
| 569 | 'timestamp' => $timestamp, |
| 570 | 'nonce' => $nonce, |
| 571 | 'signature' => $signature, |
| 572 | ); |
| 573 | |
| 574 | $header_pieces = array(); |
| 575 | foreach ( $auth as $key => $value ) { |
| 576 | $header_pieces[] = sprintf( '%s="%s"', $key, $value ); |
| 577 | } |
| 578 | |
| 579 | return implode( ' ', $header_pieces ); |
| 580 | } |
| 581 | |
| 582 | /** |
| 583 | * Gets the list of user tokens |
| 584 | * |
| 585 | * @since 1.30.0 |
| 586 | * |
| 587 | * @return bool|array An array of user tokens where keys are user IDs and values are the tokens. False if no user token is found. |
| 588 | */ |
| 589 | public function get_user_tokens() { |
| 590 | return Jetpack_Options::get_option( 'user_tokens' ); |
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * Updates the option that stores the user tokens |
| 595 | * |
| 596 | * @since 1.30.0 |
| 597 | * |
| 598 | * @param array $tokens An array of user tokens where keys are user IDs and values are the tokens. |
| 599 | * @return bool Was the option successfully updated? |
| 600 | * |
| 601 | * @todo add validate the input. |
| 602 | */ |
| 603 | public function update_user_tokens( $tokens ) { |
| 604 | return Jetpack_Options::update_option( 'user_tokens', $tokens ); |
| 605 | } |
| 606 | |
| 607 | /** |
| 608 | * Lock the tokens to the current site URL. |
| 609 | * |
| 610 | * @param int $timespan How long the tokens should be locked, in seconds. |
| 611 | * |
| 612 | * @return bool |
| 613 | */ |
| 614 | public function set_lock( $timespan = HOUR_IN_SECONDS ) { |
| 615 | try { |
| 616 | $expires = ( new DateTime() )->add( DateInterval::createFromDateString( (int) $timespan . ' seconds' ) ); |
| 617 | } catch ( Exception $e ) { |
| 618 | return false; |
| 619 | } |
| 620 | |
| 621 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode |
| 622 | return Jetpack_Options::update_option( 'token_lock', $expires->format( static::DATE_FORMAT_ATOM ) . '|||' . base64_encode( Urls::site_url() ) ); |
| 623 | } |
| 624 | |
| 625 | /** |
| 626 | * Remove the site lock from tokens. |
| 627 | * |
| 628 | * @return bool |
| 629 | */ |
| 630 | public function remove_lock() { |
| 631 | Jetpack_Options::delete_option( 'token_lock' ); |
| 632 | |
| 633 | return true; |
| 634 | } |
| 635 | |
| 636 | /** |
| 637 | * Check if the domain is locked, remove the lock if needed. |
| 638 | * Possible scenarios: |
| 639 | * - lock expired, site URL matches the lock URL: remove the lock, return false. |
| 640 | * - lock not expired, site URL matches the lock URL: return false. |
| 641 | * - site URL does not match the lock URL (expiration date is ignored): return true, do not remove the lock. |
| 642 | * |
| 643 | * @return bool |
| 644 | */ |
| 645 | public function is_locked() { |
| 646 | $the_lock = Jetpack_Options::get_option( 'token_lock' ); |
| 647 | if ( ! $the_lock ) { |
| 648 | // Not locked. |
| 649 | return false; |
| 650 | } |
| 651 | |
| 652 | $the_lock = explode( '|||', $the_lock, 2 ); |
| 653 | if ( count( $the_lock ) !== 2 ) { |
| 654 | // Something's wrong with the lock. |
| 655 | $this->remove_lock(); |
| 656 | return false; |
| 657 | } |
| 658 | |
| 659 | // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode |
| 660 | $locked_site_url = base64_decode( $the_lock[1] ); |
| 661 | $expires = $the_lock[0]; |
| 662 | |
| 663 | $expiration_date = DateTime::createFromFormat( static::DATE_FORMAT_ATOM, $expires ); |
| 664 | if ( false === $expiration_date || ! $locked_site_url ) { |
| 665 | // Something's wrong with the lock. |
| 666 | $this->remove_lock(); |
| 667 | return false; |
| 668 | } |
| 669 | |
| 670 | if ( Urls::site_url() === $locked_site_url ) { |
| 671 | if ( new DateTime() > $expiration_date ) { |
| 672 | // Site lock expired. |
| 673 | // Site URL matches, removing the lock. |
| 674 | $this->remove_lock(); |
| 675 | } |
| 676 | |
| 677 | return false; |
| 678 | } |
| 679 | |
| 680 | // Site URL doesn't match. |
| 681 | return true; |
| 682 | } |
| 683 | } |