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PHP Cross Reference of WordPress |
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1 <?php 2 /** 3 * These functions can be replaced via plugins. If plugins do not redefine these 4 * functions, then these will be used instead. 5 * 6 * @package WordPress 7 */ 8 9 if ( ! function_exists( 'wp_set_current_user' ) ) : 10 /** 11 * Changes the current user by ID or name. 12 * 13 * Set $id to null and specify a name if you do not know a user's ID. 14 * 15 * Some WordPress functionality is based on the current user and not based on 16 * the signed in user. Therefore, it opens the ability to edit and perform 17 * actions on users who aren't signed in. 18 * 19 * @since 2.0.3 20 * 21 * @global WP_User $current_user The current user object which holds the user data. 22 * 23 * @param int|null $id User ID. 24 * @param string $name User's username. 25 * @return WP_User Current user User object. 26 */ 27 function wp_set_current_user( $id, $name = '' ) { 28 global $current_user; 29 30 // If `$id` matches the current user, there is nothing to do. 31 if ( isset( $current_user ) 32 && ( $current_user instanceof WP_User ) 33 && ( $id == $current_user->ID ) 34 && ( null !== $id ) 35 ) { 36 return $current_user; 37 } 38 39 $current_user = new WP_User( $id, $name ); 40 41 setup_userdata( $current_user->ID ); 42 43 /** 44 * Fires after the current user is set. 45 * 46 * @since 2.0.1 47 */ 48 do_action( 'set_current_user' ); 49 50 return $current_user; 51 } 52 endif; 53 54 if ( ! function_exists( 'wp_get_current_user' ) ) : 55 /** 56 * Retrieve the current user object. 57 * 58 * Will set the current user, if the current user is not set. The current user 59 * will be set to the logged-in person. If no user is logged-in, then it will 60 * set the current user to 0, which is invalid and won't have any permissions. 61 * 62 * @since 2.0.3 63 * 64 * @see _wp_get_current_user() 65 * @global WP_User $current_user Checks if the current user is set. 66 * 67 * @return WP_User Current WP_User instance. 68 */ 69 function wp_get_current_user() { 70 return _wp_get_current_user(); 71 } 72 endif; 73 74 if ( ! function_exists( 'get_userdata' ) ) : 75 /** 76 * Retrieve user info by user ID. 77 * 78 * @since 0.71 79 * 80 * @param int $user_id User ID 81 * @return WP_User|false WP_User object on success, false on failure. 82 */ 83 function get_userdata( $user_id ) { 84 return get_user_by( 'id', $user_id ); 85 } 86 endif; 87 88 if ( ! function_exists( 'get_user_by' ) ) : 89 /** 90 * Retrieve user info by a given field 91 * 92 * @since 2.8.0 93 * @since 4.4.0 Added 'ID' as an alias of 'id' for the `$field` parameter. 94 * @since 5.8.0 Returns the global `$current_user` if it's the user being fetched. 95 * 96 * @global WP_User $current_user The current user object which holds the user data. 97 * 98 * @param string $field The field to retrieve the user with. id | ID | slug | email | login. 99 * @param int|string $value A value for $field. A user ID, slug, email address, or login name. 100 * @return WP_User|false WP_User object on success, false on failure. 101 */ 102 function get_user_by( $field, $value ) { 103 global $current_user; 104 105 $userdata = WP_User::get_data_by( $field, $value ); 106 107 if ( ! $userdata ) { 108 return false; 109 } 110 111 if ( $current_user instanceof WP_User && $current_user->ID === (int) $userdata->ID ) { 112 return $current_user; 113 } 114 115 $user = new WP_User; 116 $user->init( $userdata ); 117 118 return $user; 119 } 120 endif; 121 122 if ( ! function_exists( 'cache_users' ) ) : 123 /** 124 * Retrieve info for user lists to prevent multiple queries by get_userdata() 125 * 126 * @since 3.0.0 127 * 128 * @global wpdb $wpdb WordPress database abstraction object. 129 * 130 * @param int[] $user_ids User ID numbers list 131 */ 132 function cache_users( $user_ids ) { 133 global $wpdb; 134 135 $clean = _get_non_cached_ids( $user_ids, 'users' ); 136 137 if ( empty( $clean ) ) { 138 return; 139 } 140 141 $list = implode( ',', $clean ); 142 143 $users = $wpdb->get_results( "SELECT * FROM $wpdb->users WHERE ID IN ($list)" ); 144 145 $ids = array(); 146 foreach ( $users as $user ) { 147 update_user_caches( $user ); 148 $ids[] = $user->ID; 149 } 150 update_meta_cache( 'user', $ids ); 151 } 152 endif; 153 154 if ( ! function_exists( 'wp_mail' ) ) : 155 /** 156 * Sends an email, similar to PHP's mail function. 157 * 158 * A true return value does not automatically mean that the user received the 159 * email successfully. It just only means that the method used was able to 160 * process the request without any errors. 161 * 162 * The default content type is `text/plain` which does not allow using HTML. 163 * However, you can set the content type of the email by using the 164 * {@see 'wp_mail_content_type'} filter. 165 * 166 * The default charset is based on the charset used on the blog. The charset can 167 * be set using the {@see 'wp_mail_charset'} filter. 168 * 169 * @since 1.2.1 170 * @since 5.5.0 is_email() is used for email validation, 171 * instead of PHPMailer's default validator. 172 * 173 * @global PHPMailer\PHPMailer\PHPMailer $phpmailer 174 * 175 * @param string|string[] $to Array or comma-separated list of email addresses to send message. 176 * @param string $subject Email subject. 177 * @param string $message Message contents. 178 * @param string|string[] $headers Optional. Additional headers. 179 * @param string|string[] $attachments Optional. Paths to files to attach. 180 * @return bool Whether the email was sent successfully. 181 */ 182 function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() ) { 183 // Compact the input, apply the filters, and extract them back out. 184 185 /** 186 * Filters the wp_mail() arguments. 187 * 188 * @since 2.2.0 189 * 190 * @param array $args { 191 * Array of the `wp_mail()` arguments. 192 * 193 * @type string|string[] $to Array or comma-separated list of email addresses to send message. 194 * @type string $subject Email subject. 195 * @type string $message Message contents. 196 * @type string|string[] $headers Additional headers. 197 * @type string|string[] $attachments Paths to files to attach. 198 * } 199 */ 200 $atts = apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) ); 201 202 /** 203 * Filters whether to preempt sending an email. 204 * 205 * Returning a non-null value will short-circuit {@see wp_mail()}, returning 206 * that value instead. A boolean return value should be used to indicate whether 207 * the email was successfully sent. 208 * 209 * @since 5.7.0 210 * 211 * @param null|bool $return Short-circuit return value. 212 * @param array $atts { 213 * Array of the `wp_mail()` arguments. 214 * 215 * @type string|string[] $to Array or comma-separated list of email addresses to send message. 216 * @type string $subject Email subject. 217 * @type string $message Message contents. 218 * @type string|string[] $headers Additional headers. 219 * @type string|string[] $attachments Paths to files to attach. 220 * } 221 */ 222 $pre_wp_mail = apply_filters( 'pre_wp_mail', null, $atts ); 223 224 if ( null !== $pre_wp_mail ) { 225 return $pre_wp_mail; 226 } 227 228 if ( isset( $atts['to'] ) ) { 229 $to = $atts['to']; 230 } 231 232 if ( ! is_array( $to ) ) { 233 $to = explode( ',', $to ); 234 } 235 236 if ( isset( $atts['subject'] ) ) { 237 $subject = $atts['subject']; 238 } 239 240 if ( isset( $atts['message'] ) ) { 241 $message = $atts['message']; 242 } 243 244 if ( isset( $atts['headers'] ) ) { 245 $headers = $atts['headers']; 246 } 247 248 if ( isset( $atts['attachments'] ) ) { 249 $attachments = $atts['attachments']; 250 } 251 252 if ( ! is_array( $attachments ) ) { 253 $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) ); 254 } 255 global $phpmailer; 256 257 // (Re)create it, if it's gone missing. 258 if ( ! ( $phpmailer instanceof PHPMailer\PHPMailer\PHPMailer ) ) { 259 require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php'; 260 require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php'; 261 require_once ABSPATH . WPINC . '/PHPMailer/Exception.php'; 262 $phpmailer = new PHPMailer\PHPMailer\PHPMailer( true ); 263 264 $phpmailer::$validator = static function ( $email ) { 265 return (bool) is_email( $email ); 266 }; 267 } 268 269 // Headers. 270 $cc = array(); 271 $bcc = array(); 272 $reply_to = array(); 273 274 if ( empty( $headers ) ) { 275 $headers = array(); 276 } else { 277 if ( ! is_array( $headers ) ) { 278 // Explode the headers out, so this function can take 279 // both string headers and an array of headers. 280 $tempheaders = explode( "\n", str_replace( "\r\n", "\n", $headers ) ); 281 } else { 282 $tempheaders = $headers; 283 } 284 $headers = array(); 285 286 // If it's actually got contents. 287 if ( ! empty( $tempheaders ) ) { 288 // Iterate through the raw headers. 289 foreach ( (array) $tempheaders as $header ) { 290 if ( strpos( $header, ':' ) === false ) { 291 if ( false !== stripos( $header, 'boundary=' ) ) { 292 $parts = preg_split( '/boundary=/i', trim( $header ) ); 293 $boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) ); 294 } 295 continue; 296 } 297 // Explode them out. 298 list( $name, $content ) = explode( ':', trim( $header ), 2 ); 299 300 // Cleanup crew. 301 $name = trim( $name ); 302 $content = trim( $content ); 303 304 switch ( strtolower( $name ) ) { 305 // Mainly for legacy -- process a "From:" header if it's there. 306 case 'from': 307 $bracket_pos = strpos( $content, '<' ); 308 if ( false !== $bracket_pos ) { 309 // Text before the bracketed email is the "From" name. 310 if ( $bracket_pos > 0 ) { 311 $from_name = substr( $content, 0, $bracket_pos - 1 ); 312 $from_name = str_replace( '"', '', $from_name ); 313 $from_name = trim( $from_name ); 314 } 315 316 $from_email = substr( $content, $bracket_pos + 1 ); 317 $from_email = str_replace( '>', '', $from_email ); 318 $from_email = trim( $from_email ); 319 320 // Avoid setting an empty $from_email. 321 } elseif ( '' !== trim( $content ) ) { 322 $from_email = trim( $content ); 323 } 324 break; 325 case 'content-type': 326 if ( strpos( $content, ';' ) !== false ) { 327 list( $type, $charset_content ) = explode( ';', $content ); 328 $content_type = trim( $type ); 329 if ( false !== stripos( $charset_content, 'charset=' ) ) { 330 $charset = trim( str_replace( array( 'charset=', '"' ), '', $charset_content ) ); 331 } elseif ( false !== stripos( $charset_content, 'boundary=' ) ) { 332 $boundary = trim( str_replace( array( 'BOUNDARY=', 'boundary=', '"' ), '', $charset_content ) ); 333 $charset = ''; 334 } 335 336 // Avoid setting an empty $content_type. 337 } elseif ( '' !== trim( $content ) ) { 338 $content_type = trim( $content ); 339 } 340 break; 341 case 'cc': 342 $cc = array_merge( (array) $cc, explode( ',', $content ) ); 343 break; 344 case 'bcc': 345 $bcc = array_merge( (array) $bcc, explode( ',', $content ) ); 346 break; 347 case 'reply-to': 348 $reply_to = array_merge( (array) $reply_to, explode( ',', $content ) ); 349 break; 350 default: 351 // Add it to our grand headers array. 352 $headers[ trim( $name ) ] = trim( $content ); 353 break; 354 } 355 } 356 } 357 } 358 359 // Empty out the values that may be set. 360 $phpmailer->clearAllRecipients(); 361 $phpmailer->clearAttachments(); 362 $phpmailer->clearCustomHeaders(); 363 $phpmailer->clearReplyTos(); 364 365 // Set "From" name and email. 366 367 // If we don't have a name from the input headers. 368 if ( ! isset( $from_name ) ) { 369 $from_name = 'WordPress'; 370 } 371 372 /* 373 * If we don't have an email from the input headers, default to wordpress@$sitename 374 * Some hosts will block outgoing mail from this address if it doesn't exist, 375 * but there's no easy alternative. Defaulting to admin_email might appear to be 376 * another option, but some hosts may refuse to relay mail from an unknown domain. 377 * See https://core.trac.wordpress.org/ticket/5007. 378 */ 379 if ( ! isset( $from_email ) ) { 380 // Get the site domain and get rid of www. 381 $sitename = wp_parse_url( network_home_url(), PHP_URL_HOST ); 382 $from_email = 'wordpress@'; 383 384 if ( null !== $sitename ) { 385 if ( 'www.' === substr( $sitename, 0, 4 ) ) { 386 $sitename = substr( $sitename, 4 ); 387 } 388 389 $from_email .= $sitename; 390 } 391 } 392 393 /** 394 * Filters the email address to send from. 395 * 396 * @since 2.2.0 397 * 398 * @param string $from_email Email address to send from. 399 */ 400 $from_email = apply_filters( 'wp_mail_from', $from_email ); 401 402 /** 403 * Filters the name to associate with the "from" email address. 404 * 405 * @since 2.3.0 406 * 407 * @param string $from_name Name associated with the "from" email address. 408 */ 409 $from_name = apply_filters( 'wp_mail_from_name', $from_name ); 410 411 try { 412 $phpmailer->setFrom( $from_email, $from_name, false ); 413 } catch ( PHPMailer\PHPMailer\Exception $e ) { 414 $mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' ); 415 $mail_error_data['phpmailer_exception_code'] = $e->getCode(); 416 417 /** This filter is documented in wp-includes/pluggable.php */ 418 do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) ); 419 420 return false; 421 } 422 423 // Set mail's subject and body. 424 $phpmailer->Subject = $subject; 425 $phpmailer->Body = $message; 426 427 // Set destination addresses, using appropriate methods for handling addresses. 428 $address_headers = compact( 'to', 'cc', 'bcc', 'reply_to' ); 429 430 foreach ( $address_headers as $address_header => $addresses ) { 431 if ( empty( $addresses ) ) { 432 continue; 433 } 434 435 foreach ( (array) $addresses as $address ) { 436 try { 437 // Break $recipient into name and address parts if in the format "Foo <bar@baz.com>". 438 $recipient_name = ''; 439 440 if ( preg_match( '/(.*)<(.+)>/', $address, $matches ) ) { 441 if ( count( $matches ) == 3 ) { 442 $recipient_name = $matches[1]; 443 $address = $matches[2]; 444 } 445 } 446 447 switch ( $address_header ) { 448 case 'to': 449 $phpmailer->addAddress( $address, $recipient_name ); 450 break; 451 case 'cc': 452 $phpmailer->addCc( $address, $recipient_name ); 453 break; 454 case 'bcc': 455 $phpmailer->addBcc( $address, $recipient_name ); 456 break; 457 case 'reply_to': 458 $phpmailer->addReplyTo( $address, $recipient_name ); 459 break; 460 } 461 } catch ( PHPMailer\PHPMailer\Exception $e ) { 462 continue; 463 } 464 } 465 } 466 467 // Set to use PHP's mail(). 468 $phpmailer->isMail(); 469 470 // Set Content-Type and charset. 471 472 // If we don't have a content-type from the input headers. 473 if ( ! isset( $content_type ) ) { 474 $content_type = 'text/plain'; 475 } 476 477 /** 478 * Filters the wp_mail() content type. 479 * 480 * @since 2.3.0 481 * 482 * @param string $content_type Default wp_mail() content type. 483 */ 484 $content_type = apply_filters( 'wp_mail_content_type', $content_type ); 485 486 $phpmailer->ContentType = $content_type; 487 488 // Set whether it's plaintext, depending on $content_type. 489 if ( 'text/html' === $content_type ) { 490 $phpmailer->isHTML( true ); 491 } 492 493 // If we don't have a charset from the input headers. 494 if ( ! isset( $charset ) ) { 495 $charset = get_bloginfo( 'charset' ); 496 } 497 498 /** 499 * Filters the default wp_mail() charset. 500 * 501 * @since 2.3.0 502 * 503 * @param string $charset Default email charset. 504 */ 505 $phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset ); 506 507 // Set custom headers. 508 if ( ! empty( $headers ) ) { 509 foreach ( (array) $headers as $name => $content ) { 510 // Only add custom headers not added automatically by PHPMailer. 511 if ( ! in_array( $name, array( 'MIME-Version', 'X-Mailer' ), true ) ) { 512 try { 513 $phpmailer->addCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) ); 514 } catch ( PHPMailer\PHPMailer\Exception $e ) { 515 continue; 516 } 517 } 518 } 519 520 if ( false !== stripos( $content_type, 'multipart' ) && ! empty( $boundary ) ) { 521 $phpmailer->addCustomHeader( sprintf( 'Content-Type: %s; boundary="%s"', $content_type, $boundary ) ); 522 } 523 } 524 525 if ( ! empty( $attachments ) ) { 526 foreach ( $attachments as $attachment ) { 527 try { 528 $phpmailer->addAttachment( $attachment ); 529 } catch ( PHPMailer\PHPMailer\Exception $e ) { 530 continue; 531 } 532 } 533 } 534 535 /** 536 * Fires after PHPMailer is initialized. 537 * 538 * @since 2.2.0 539 * 540 * @param PHPMailer $phpmailer The PHPMailer instance (passed by reference). 541 */ 542 do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); 543 544 $mail_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' ); 545 546 // Send! 547 try { 548 $send = $phpmailer->send(); 549 550 /** 551 * Fires after PHPMailer has successfully sent an email. 552 * 553 * The firing of this action does not necessarily mean that the recipient(s) received the 554 * email successfully. It only means that the `send` method above was able to 555 * process the request without any errors. 556 * 557 * @since 5.9.0 558 * 559 * @param array $mail_data { 560 * An array containing the email recipient(s), subject, message, headers, and attachments. 561 * 562 * @type string[] $to Email addresses to send message. 563 * @type string $subject Email subject. 564 * @type string $message Message contents. 565 * @type string[] $headers Additional headers. 566 * @type string[] $attachments Paths to files to attach. 567 * } 568 */ 569 do_action( 'wp_mail_succeeded', $mail_data ); 570 571 return $send; 572 } catch ( PHPMailer\PHPMailer\Exception $e ) { 573 $mail_data['phpmailer_exception_code'] = $e->getCode(); 574 575 /** 576 * Fires after a PHPMailer\PHPMailer\Exception is caught. 577 * 578 * @since 4.4.0 579 * 580 * @param WP_Error $error A WP_Error object with the PHPMailer\PHPMailer\Exception message, and an array 581 * containing the mail recipient, subject, message, headers, and attachments. 582 */ 583 do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_data ) ); 584 585 return false; 586 } 587 } 588 endif; 589 590 if ( ! function_exists( 'wp_authenticate' ) ) : 591 /** 592 * Authenticate a user, confirming the login credentials are valid. 593 * 594 * @since 2.5.0 595 * @since 4.5.0 `$username` now accepts an email address. 596 * 597 * @param string $username User's username or email address. 598 * @param string $password User's password. 599 * @return WP_User|WP_Error WP_User object if the credentials are valid, 600 * otherwise WP_Error. 601 */ 602 function wp_authenticate( $username, $password ) { 603 $username = sanitize_user( $username ); 604 $password = trim( $password ); 605 606 /** 607 * Filters whether a set of user login credentials are valid. 608 * 609 * A WP_User object is returned if the credentials authenticate a user. 610 * WP_Error or null otherwise. 611 * 612 * @since 2.8.0 613 * @since 4.5.0 `$username` now accepts an email address. 614 * 615 * @param null|WP_User|WP_Error $user WP_User if the user is authenticated. 616 * WP_Error or null otherwise. 617 * @param string $username Username or email address. 618 * @param string $password User password 619 */ 620 $user = apply_filters( 'authenticate', null, $username, $password ); 621 622 if ( null == $user ) { 623 // TODO: What should the error message be? (Or would these even happen?) 624 // Only needed if all authentication handlers fail to return anything. 625 $user = new WP_Error( 'authentication_failed', __( '<strong>Error</strong>: Invalid username, email address or incorrect password.' ) ); 626 } 627 628 $ignore_codes = array( 'empty_username', 'empty_password' ); 629 630 if ( is_wp_error( $user ) && ! in_array( $user->get_error_code(), $ignore_codes, true ) ) { 631 $error = $user; 632 633 /** 634 * Fires after a user login has failed. 635 * 636 * @since 2.5.0 637 * @since 4.5.0 The value of `$username` can now be an email address. 638 * @since 5.4.0 The `$error` parameter was added. 639 * 640 * @param string $username Username or email address. 641 * @param WP_Error $error A WP_Error object with the authentication failure details. 642 */ 643 do_action( 'wp_login_failed', $username, $error ); 644 } 645 646 return $user; 647 } 648 endif; 649 650 if ( ! function_exists( 'wp_logout' ) ) : 651 /** 652 * Log the current user out. 653 * 654 * @since 2.5.0 655 */ 656 function wp_logout() { 657 $user_id = get_current_user_id(); 658 659 wp_destroy_current_session(); 660 wp_clear_auth_cookie(); 661 wp_set_current_user( 0 ); 662 663 /** 664 * Fires after a user is logged out. 665 * 666 * @since 1.5.0 667 * @since 5.5.0 Added the `$user_id` parameter. 668 * 669 * @param int $user_id ID of the user that was logged out. 670 */ 671 do_action( 'wp_logout', $user_id ); 672 } 673 endif; 674 675 if ( ! function_exists( 'wp_validate_auth_cookie' ) ) : 676 /** 677 * Validates authentication cookie. 678 * 679 * The checks include making sure that the authentication cookie is set and 680 * pulling in the contents (if $cookie is not used). 681 * 682 * Makes sure the cookie is not expired. Verifies the hash in cookie is what is 683 * should be and compares the two. 684 * 685 * @since 2.5.0 686 * 687 * @global int $login_grace_period 688 * 689 * @param string $cookie Optional. If used, will validate contents instead of cookie's. 690 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 691 * @return int|false User ID if valid cookie, false if invalid. 692 */ 693 function wp_validate_auth_cookie( $cookie = '', $scheme = '' ) { 694 $cookie_elements = wp_parse_auth_cookie( $cookie, $scheme ); 695 if ( ! $cookie_elements ) { 696 /** 697 * Fires if an authentication cookie is malformed. 698 * 699 * @since 2.7.0 700 * 701 * @param string $cookie Malformed auth cookie. 702 * @param string $scheme Authentication scheme. Values include 'auth', 'secure_auth', 703 * or 'logged_in'. 704 */ 705 do_action( 'auth_cookie_malformed', $cookie, $scheme ); 706 return false; 707 } 708 709 $scheme = $cookie_elements['scheme']; 710 $username = $cookie_elements['username']; 711 $hmac = $cookie_elements['hmac']; 712 $token = $cookie_elements['token']; 713 $expired = $cookie_elements['expiration']; 714 $expiration = $cookie_elements['expiration']; 715 716 // Allow a grace period for POST and Ajax requests. 717 if ( wp_doing_ajax() || 'POST' === $_SERVER['REQUEST_METHOD'] ) { 718 $expired += HOUR_IN_SECONDS; 719 } 720 721 // Quick check to see if an honest cookie has expired. 722 if ( $expired < time() ) { 723 /** 724 * Fires once an authentication cookie has expired. 725 * 726 * @since 2.7.0 727 * 728 * @param string[] $cookie_elements { 729 * Authentication cookie components. None of the components should be assumed 730 * to be valid as they come directly from a client-provided cookie value. 731 * 732 * @type string $username User's username. 733 * @type string $expiration The time the cookie expires as a UNIX timestamp. 734 * @type string $token User's session token used. 735 * @type string $hmac The security hash for the cookie. 736 * @type string $scheme The cookie scheme to use. 737 * } 738 */ 739 do_action( 'auth_cookie_expired', $cookie_elements ); 740 return false; 741 } 742 743 $user = get_user_by( 'login', $username ); 744 if ( ! $user ) { 745 /** 746 * Fires if a bad username is entered in the user authentication process. 747 * 748 * @since 2.7.0 749 * 750 * @param string[] $cookie_elements { 751 * Authentication cookie components. None of the components should be assumed 752 * to be valid as they come directly from a client-provided cookie value. 753 * 754 * @type string $username User's username. 755 * @type string $expiration The time the cookie expires as a UNIX timestamp. 756 * @type string $token User's session token used. 757 * @type string $hmac The security hash for the cookie. 758 * @type string $scheme The cookie scheme to use. 759 * } 760 */ 761 do_action( 'auth_cookie_bad_username', $cookie_elements ); 762 return false; 763 } 764 765 $pass_frag = substr( $user->user_pass, 8, 4 ); 766 767 $key = wp_hash( $username . '|' . $pass_frag . '|' . $expiration . '|' . $token, $scheme ); 768 769 // If ext/hash is not present, compat.php's hash_hmac() does not support sha256. 770 $algo = function_exists( 'hash' ) ? 'sha256' : 'sha1'; 771 $hash = hash_hmac( $algo, $username . '|' . $expiration . '|' . $token, $key ); 772 773 if ( ! hash_equals( $hash, $hmac ) ) { 774 /** 775 * Fires if a bad authentication cookie hash is encountered. 776 * 777 * @since 2.7.0 778 * 779 * @param string[] $cookie_elements { 780 * Authentication cookie components. None of the components should be assumed 781 * to be valid as they come directly from a client-provided cookie value. 782 * 783 * @type string $username User's username. 784 * @type string $expiration The time the cookie expires as a UNIX timestamp. 785 * @type string $token User's session token used. 786 * @type string $hmac The security hash for the cookie. 787 * @type string $scheme The cookie scheme to use. 788 * } 789 */ 790 do_action( 'auth_cookie_bad_hash', $cookie_elements ); 791 return false; 792 } 793 794 $manager = WP_Session_Tokens::get_instance( $user->ID ); 795 if ( ! $manager->verify( $token ) ) { 796 /** 797 * Fires if a bad session token is encountered. 798 * 799 * @since 4.0.0 800 * 801 * @param string[] $cookie_elements { 802 * Authentication cookie components. None of the components should be assumed 803 * to be valid as they come directly from a client-provided cookie value. 804 * 805 * @type string $username User's username. 806 * @type string $expiration The time the cookie expires as a UNIX timestamp. 807 * @type string $token User's session token used. 808 * @type string $hmac The security hash for the cookie. 809 * @type string $scheme The cookie scheme to use. 810 * } 811 */ 812 do_action( 'auth_cookie_bad_session_token', $cookie_elements ); 813 return false; 814 } 815 816 // Ajax/POST grace period set above. 817 if ( $expiration < time() ) { 818 $GLOBALS['login_grace_period'] = 1; 819 } 820 821 /** 822 * Fires once an authentication cookie has been validated. 823 * 824 * @since 2.7.0 825 * 826 * @param string[] $cookie_elements { 827 * Authentication cookie components. 828 * 829 * @type string $username User's username. 830 * @type string $expiration The time the cookie expires as a UNIX timestamp. 831 * @type string $token User's session token used. 832 * @type string $hmac The security hash for the cookie. 833 * @type string $scheme The cookie scheme to use. 834 * } 835 * @param WP_User $user User object. 836 */ 837 do_action( 'auth_cookie_valid', $cookie_elements, $user ); 838 839 return $user->ID; 840 } 841 endif; 842 843 if ( ! function_exists( 'wp_generate_auth_cookie' ) ) : 844 /** 845 * Generates authentication cookie contents. 846 * 847 * @since 2.5.0 848 * @since 4.0.0 The `$token` parameter was added. 849 * 850 * @param int $user_id User ID. 851 * @param int $expiration The time the cookie expires as a UNIX timestamp. 852 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 853 * Default 'auth'. 854 * @param string $token User's session token to use for this cookie. 855 * @return string Authentication cookie contents. Empty string if user does not exist. 856 */ 857 function wp_generate_auth_cookie( $user_id, $expiration, $scheme = 'auth', $token = '' ) { 858 $user = get_userdata( $user_id ); 859 if ( ! $user ) { 860 return ''; 861 } 862 863 if ( ! $token ) { 864 $manager = WP_Session_Tokens::get_instance( $user_id ); 865 $token = $manager->create( $expiration ); 866 } 867 868 $pass_frag = substr( $user->user_pass, 8, 4 ); 869 870 $key = wp_hash( $user->user_login . '|' . $pass_frag . '|' . $expiration . '|' . $token, $scheme ); 871 872 // If ext/hash is not present, compat.php's hash_hmac() does not support sha256. 873 $algo = function_exists( 'hash' ) ? 'sha256' : 'sha1'; 874 $hash = hash_hmac( $algo, $user->user_login . '|' . $expiration . '|' . $token, $key ); 875 876 $cookie = $user->user_login . '|' . $expiration . '|' . $token . '|' . $hash; 877 878 /** 879 * Filters the authentication cookie. 880 * 881 * @since 2.5.0 882 * @since 4.0.0 The `$token` parameter was added. 883 * 884 * @param string $cookie Authentication cookie. 885 * @param int $user_id User ID. 886 * @param int $expiration The time the cookie expires as a UNIX timestamp. 887 * @param string $scheme Cookie scheme used. Accepts 'auth', 'secure_auth', or 'logged_in'. 888 * @param string $token User's session token used. 889 */ 890 return apply_filters( 'auth_cookie', $cookie, $user_id, $expiration, $scheme, $token ); 891 } 892 endif; 893 894 if ( ! function_exists( 'wp_parse_auth_cookie' ) ) : 895 /** 896 * Parses a cookie into its components. 897 * 898 * @since 2.7.0 899 * 900 * @param string $cookie Authentication cookie. 901 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 902 * @return string[]|false { 903 * Authentication cookie components. None of the components should be assumed 904 * to be valid as they come directly from a client-provided cookie value. If 905 * the cookie value is malformed, false is returned. 906 * 907 * @type string $username User's username. 908 * @type string $expiration The time the cookie expires as a UNIX timestamp. 909 * @type string $token User's session token used. 910 * @type string $hmac The security hash for the cookie. 911 * @type string $scheme The cookie scheme to use. 912 * } 913 */ 914 function wp_parse_auth_cookie( $cookie = '', $scheme = '' ) { 915 if ( empty( $cookie ) ) { 916 switch ( $scheme ) { 917 case 'auth': 918 $cookie_name = AUTH_COOKIE; 919 break; 920 case 'secure_auth': 921 $cookie_name = SECURE_AUTH_COOKIE; 922 break; 923 case 'logged_in': 924 $cookie_name = LOGGED_IN_COOKIE; 925 break; 926 default: 927 if ( is_ssl() ) { 928 $cookie_name = SECURE_AUTH_COOKIE; 929 $scheme = 'secure_auth'; 930 } else { 931 $cookie_name = AUTH_COOKIE; 932 $scheme = 'auth'; 933 } 934 } 935 936 if ( empty( $_COOKIE[ $cookie_name ] ) ) { 937 return false; 938 } 939 $cookie = $_COOKIE[ $cookie_name ]; 940 } 941 942 $cookie_elements = explode( '|', $cookie ); 943 if ( count( $cookie_elements ) !== 4 ) { 944 return false; 945 } 946 947 list( $username, $expiration, $token, $hmac ) = $cookie_elements; 948 949 return compact( 'username', 'expiration', 'token', 'hmac', 'scheme' ); 950 } 951 endif; 952 953 if ( ! function_exists( 'wp_set_auth_cookie' ) ) : 954 /** 955 * Sets the authentication cookies based on user ID. 956 * 957 * The $remember parameter increases the time that the cookie will be kept. The 958 * default the cookie is kept without remembering is two days. When $remember is 959 * set, the cookies will be kept for 14 days or two weeks. 960 * 961 * @since 2.5.0 962 * @since 4.3.0 Added the `$token` parameter. 963 * 964 * @param int $user_id User ID. 965 * @param bool $remember Whether to remember the user. 966 * @param bool|string $secure Whether the auth cookie should only be sent over HTTPS. Default is an empty 967 * string which means the value of `is_ssl()` will be used. 968 * @param string $token Optional. User's session token to use for this cookie. 969 */ 970 function wp_set_auth_cookie( $user_id, $remember = false, $secure = '', $token = '' ) { 971 if ( $remember ) { 972 /** 973 * Filters the duration of the authentication cookie expiration period. 974 * 975 * @since 2.8.0 976 * 977 * @param int $length Duration of the expiration period in seconds. 978 * @param int $user_id User ID. 979 * @param bool $remember Whether to remember the user login. Default false. 980 */ 981 $expiration = time() + apply_filters( 'auth_cookie_expiration', 14 * DAY_IN_SECONDS, $user_id, $remember ); 982 983 /* 984 * Ensure the browser will continue to send the cookie after the expiration time is reached. 985 * Needed for the login grace period in wp_validate_auth_cookie(). 986 */ 987 $expire = $expiration + ( 12 * HOUR_IN_SECONDS ); 988 } else { 989 /** This filter is documented in wp-includes/pluggable.php */ 990 $expiration = time() + apply_filters( 'auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, $remember ); 991 $expire = 0; 992 } 993 994 if ( '' === $secure ) { 995 $secure = is_ssl(); 996 } 997 998 // Front-end cookie is secure when the auth cookie is secure and the site's home URL uses HTTPS. 999 $secure_logged_in_cookie = $secure && 'https' === parse_url( get_option( 'home' ), PHP_URL_SCHEME ); 1000 1001 /** 1002 * Filters whether the auth cookie should only be sent over HTTPS. 1003 * 1004 * @since 3.1.0 1005 * 1006 * @param bool $secure Whether the cookie should only be sent over HTTPS. 1007 * @param int $user_id User ID. 1008 */ 1009 $secure = apply_filters( 'secure_auth_cookie', $secure, $user_id ); 1010 1011 /** 1012 * Filters whether the logged in cookie should only be sent over HTTPS. 1013 * 1014 * @since 3.1.0 1015 * 1016 * @param bool $secure_logged_in_cookie Whether the logged in cookie should only be sent over HTTPS. 1017 * @param int $user_id User ID. 1018 * @param bool $secure Whether the auth cookie should only be sent over HTTPS. 1019 */ 1020 $secure_logged_in_cookie = apply_filters( 'secure_logged_in_cookie', $secure_logged_in_cookie, $user_id, $secure ); 1021 1022 if ( $secure ) { 1023 $auth_cookie_name = SECURE_AUTH_COOKIE; 1024 $scheme = 'secure_auth'; 1025 } else { 1026 $auth_cookie_name = AUTH_COOKIE; 1027 $scheme = 'auth'; 1028 } 1029 1030 if ( '' === $token ) { 1031 $manager = WP_Session_Tokens::get_instance( $user_id ); 1032 $token = $manager->create( $expiration ); 1033 } 1034 1035 $auth_cookie = wp_generate_auth_cookie( $user_id, $expiration, $scheme, $token ); 1036 $logged_in_cookie = wp_generate_auth_cookie( $user_id, $expiration, 'logged_in', $token ); 1037 1038 /** 1039 * Fires immediately before the authentication cookie is set. 1040 * 1041 * @since 2.5.0 1042 * @since 4.9.0 The `$token` parameter was added. 1043 * 1044 * @param string $auth_cookie Authentication cookie value. 1045 * @param int $expire The time the login grace period expires as a UNIX timestamp. 1046 * Default is 12 hours past the cookie's expiration time. 1047 * @param int $expiration The time when the authentication cookie expires as a UNIX timestamp. 1048 * Default is 14 days from now. 1049 * @param int $user_id User ID. 1050 * @param string $scheme Authentication scheme. Values include 'auth' or 'secure_auth'. 1051 * @param string $token User's session token to use for this cookie. 1052 */ 1053 do_action( 'set_auth_cookie', $auth_cookie, $expire, $expiration, $user_id, $scheme, $token ); 1054 1055 /** 1056 * Fires immediately before the logged-in authentication cookie is set. 1057 * 1058 * @since 2.6.0 1059 * @since 4.9.0 The `$token` parameter was added. 1060 * 1061 * @param string $logged_in_cookie The logged-in cookie value. 1062 * @param int $expire The time the login grace period expires as a UNIX timestamp. 1063 * Default is 12 hours past the cookie's expiration time. 1064 * @param int $expiration The time when the logged-in authentication cookie expires as a UNIX timestamp. 1065 * Default is 14 days from now. 1066 * @param int $user_id User ID. 1067 * @param string $scheme Authentication scheme. Default 'logged_in'. 1068 * @param string $token User's session token to use for this cookie. 1069 */ 1070 do_action( 'set_logged_in_cookie', $logged_in_cookie, $expire, $expiration, $user_id, 'logged_in', $token ); 1071 1072 /** 1073 * Allows preventing auth cookies from actually being sent to the client. 1074 * 1075 * @since 4.7.4 1076 * 1077 * @param bool $send Whether to send auth cookies to the client. 1078 */ 1079 if ( ! apply_filters( 'send_auth_cookies', true ) ) { 1080 return; 1081 } 1082 1083 setcookie( $auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN, $secure, true ); 1084 setcookie( $auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, $secure, true ); 1085 setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true ); 1086 if ( COOKIEPATH != SITECOOKIEPATH ) { 1087 setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true ); 1088 } 1089 } 1090 endif; 1091 1092 if ( ! function_exists( 'wp_clear_auth_cookie' ) ) : 1093 /** 1094 * Removes all of the cookies associated with authentication. 1095 * 1096 * @since 2.5.0 1097 */ 1098 function wp_clear_auth_cookie() { 1099 /** 1100 * Fires just before the authentication cookies are cleared. 1101 * 1102 * @since 2.7.0 1103 */ 1104 do_action( 'clear_auth_cookie' ); 1105 1106 /** This filter is documented in wp-includes/pluggable.php */ 1107 if ( ! apply_filters( 'send_auth_cookies', true ) ) { 1108 return; 1109 } 1110 1111 // Auth cookies. 1112 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); 1113 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); 1114 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); 1115 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); 1116 setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1117 setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1118 1119 // Settings cookies. 1120 setcookie( 'wp-settings-' . get_current_user_id(), ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); 1121 setcookie( 'wp-settings-time-' . get_current_user_id(), ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); 1122 1123 // Old cookies. 1124 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1125 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1126 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1127 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1128 1129 // Even older cookies. 1130 setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1131 setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1132 setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1133 setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1134 1135 // Post password cookie. 1136 setcookie( 'wp-postpass_' . COOKIEHASH, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1137 } 1138 endif; 1139 1140 if ( ! function_exists( 'is_user_logged_in' ) ) : 1141 /** 1142 * Determines whether the current visitor is a logged in user. 1143 * 1144 * For more information on this and similar theme functions, check out 1145 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 1146 * Conditional Tags} article in the Theme Developer Handbook. 1147 * 1148 * @since 2.0.0 1149 * 1150 * @return bool True if user is logged in, false if not logged in. 1151 */ 1152 function is_user_logged_in() { 1153 $user = wp_get_current_user(); 1154 1155 return $user->exists(); 1156 } 1157 endif; 1158 1159 if ( ! function_exists( 'auth_redirect' ) ) : 1160 /** 1161 * Checks if a user is logged in, if not it redirects them to the login page. 1162 * 1163 * When this code is called from a page, it checks to see if the user viewing the page is logged in. 1164 * If the user is not logged in, they are redirected to the login page. The user is redirected 1165 * in such a way that, upon logging in, they will be sent directly to the page they were originally 1166 * trying to access. 1167 * 1168 * @since 1.5.0 1169 */ 1170 function auth_redirect() { 1171 $secure = ( is_ssl() || force_ssl_admin() ); 1172 1173 /** 1174 * Filters whether to use a secure authentication redirect. 1175 * 1176 * @since 3.1.0 1177 * 1178 * @param bool $secure Whether to use a secure authentication redirect. Default false. 1179 */ 1180 $secure = apply_filters( 'secure_auth_redirect', $secure ); 1181 1182 // If https is required and request is http, redirect. 1183 if ( $secure && ! is_ssl() && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) { 1184 if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 1185 wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 1186 exit; 1187 } else { 1188 wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1189 exit; 1190 } 1191 } 1192 1193 /** 1194 * Filters the authentication redirect scheme. 1195 * 1196 * @since 2.9.0 1197 * 1198 * @param string $scheme Authentication redirect scheme. Default empty. 1199 */ 1200 $scheme = apply_filters( 'auth_redirect_scheme', '' ); 1201 1202 $user_id = wp_validate_auth_cookie( '', $scheme ); 1203 if ( $user_id ) { 1204 /** 1205 * Fires before the authentication redirect. 1206 * 1207 * @since 2.8.0 1208 * 1209 * @param int $user_id User ID. 1210 */ 1211 do_action( 'auth_redirect', $user_id ); 1212 1213 // If the user wants ssl but the session is not ssl, redirect. 1214 if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) { 1215 if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 1216 wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 1217 exit; 1218 } else { 1219 wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1220 exit; 1221 } 1222 } 1223 1224 return; // The cookie is good, so we're done. 1225 } 1226 1227 // The cookie is no good, so force login. 1228 nocache_headers(); 1229 1230 $redirect = ( strpos( $_SERVER['REQUEST_URI'], '/options.php' ) && wp_get_referer() ) ? wp_get_referer() : set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1231 1232 $login_url = wp_login_url( $redirect, true ); 1233 1234 wp_redirect( $login_url ); 1235 exit; 1236 } 1237 endif; 1238 1239 if ( ! function_exists( 'check_admin_referer' ) ) : 1240 /** 1241 * Ensures intent by verifying that a user was referred from another admin page with the correct security nonce. 1242 * 1243 * This function ensures the user intends to perform a given action, which helps protect against clickjacking style 1244 * attacks. It verifies intent, not authorisation, therefore it does not verify the user's capabilities. This should 1245 * be performed with `current_user_can()` or similar. 1246 * 1247 * If the nonce value is invalid, the function will exit with an "Are You Sure?" style message. 1248 * 1249 * @since 1.2.0 1250 * @since 2.5.0 The `$query_arg` parameter was added. 1251 * 1252 * @param int|string $action The nonce action. 1253 * @param string $query_arg Optional. Key to check for nonce in `$_REQUEST`. Default '_wpnonce'. 1254 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 1255 * 2 if the nonce is valid and generated between 12-24 hours ago. 1256 * False if the nonce is invalid. 1257 */ 1258 function check_admin_referer( $action = -1, $query_arg = '_wpnonce' ) { 1259 if ( -1 === $action ) { 1260 _doing_it_wrong( __FUNCTION__, __( 'You should specify an action to be verified by using the first parameter.' ), '3.2.0' ); 1261 } 1262 1263 $adminurl = strtolower( admin_url() ); 1264 $referer = strtolower( wp_get_referer() ); 1265 $result = isset( $_REQUEST[ $query_arg ] ) ? wp_verify_nonce( $_REQUEST[ $query_arg ], $action ) : false; 1266 1267 /** 1268 * Fires once the admin request has been validated or not. 1269 * 1270 * @since 1.5.1 1271 * 1272 * @param string $action The nonce action. 1273 * @param false|int $result False if the nonce is invalid, 1 if the nonce is valid and generated between 1274 * 0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago. 1275 */ 1276 do_action( 'check_admin_referer', $action, $result ); 1277 1278 if ( ! $result && ! ( -1 === $action && strpos( $referer, $adminurl ) === 0 ) ) { 1279 wp_nonce_ays( $action ); 1280 die(); 1281 } 1282 1283 return $result; 1284 } 1285 endif; 1286 1287 if ( ! function_exists( 'check_ajax_referer' ) ) : 1288 /** 1289 * Verifies the Ajax request to prevent processing requests external of the blog. 1290 * 1291 * @since 2.0.3 1292 * 1293 * @param int|string $action Action nonce. 1294 * @param false|string $query_arg Optional. Key to check for the nonce in `$_REQUEST` (since 2.5). If false, 1295 * `$_REQUEST` values will be evaluated for '_ajax_nonce', and '_wpnonce' 1296 * (in that order). Default false. 1297 * @param bool $die Optional. Whether to die early when the nonce cannot be verified. 1298 * Default true. 1299 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 1300 * 2 if the nonce is valid and generated between 12-24 hours ago. 1301 * False if the nonce is invalid. 1302 */ 1303 function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) { 1304 if ( -1 == $action ) { 1305 _doing_it_wrong( __FUNCTION__, __( 'You should specify an action to be verified by using the first parameter.' ), '4.7.0' ); 1306 } 1307 1308 $nonce = ''; 1309 1310 if ( $query_arg && isset( $_REQUEST[ $query_arg ] ) ) { 1311 $nonce = $_REQUEST[ $query_arg ]; 1312 } elseif ( isset( $_REQUEST['_ajax_nonce'] ) ) { 1313 $nonce = $_REQUEST['_ajax_nonce']; 1314 } elseif ( isset( $_REQUEST['_wpnonce'] ) ) { 1315 $nonce = $_REQUEST['_wpnonce']; 1316 } 1317 1318 $result = wp_verify_nonce( $nonce, $action ); 1319 1320 /** 1321 * Fires once the Ajax request has been validated or not. 1322 * 1323 * @since 2.1.0 1324 * 1325 * @param string $action The Ajax nonce action. 1326 * @param false|int $result False if the nonce is invalid, 1 if the nonce is valid and generated between 1327 * 0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago. 1328 */ 1329 do_action( 'check_ajax_referer', $action, $result ); 1330 1331 if ( $die && false === $result ) { 1332 if ( wp_doing_ajax() ) { 1333 wp_die( -1, 403 ); 1334 } else { 1335 die( '-1' ); 1336 } 1337 } 1338 1339 return $result; 1340 } 1341 endif; 1342 1343 if ( ! function_exists( 'wp_redirect' ) ) : 1344 /** 1345 * Redirects to another page. 1346 * 1347 * Note: wp_redirect() does not exit automatically, and should almost always be 1348 * followed by a call to `exit;`: 1349 * 1350 * wp_redirect( $url ); 1351 * exit; 1352 * 1353 * Exiting can also be selectively manipulated by using wp_redirect() as a conditional 1354 * in conjunction with the {@see 'wp_redirect'} and {@see 'wp_redirect_location'} filters: 1355 * 1356 * if ( wp_redirect( $url ) ) { 1357 * exit; 1358 * } 1359 * 1360 * @since 1.5.1 1361 * @since 5.1.0 The `$x_redirect_by` parameter was added. 1362 * @since 5.4.0 On invalid status codes, wp_die() is called. 1363 * 1364 * @global bool $is_IIS 1365 * 1366 * @param string $location The path or URL to redirect to. 1367 * @param int $status Optional. HTTP response status code to use. Default '302' (Moved Temporarily). 1368 * @param string $x_redirect_by Optional. The application doing the redirect. Default 'WordPress'. 1369 * @return bool False if the redirect was cancelled, true otherwise. 1370 */ 1371 function wp_redirect( $location, $status = 302, $x_redirect_by = 'WordPress' ) { 1372 global $is_IIS; 1373 1374 /** 1375 * Filters the redirect location. 1376 * 1377 * @since 2.1.0 1378 * 1379 * @param string $location The path or URL to redirect to. 1380 * @param int $status The HTTP response status code to use. 1381 */ 1382 $location = apply_filters( 'wp_redirect', $location, $status ); 1383 1384 /** 1385 * Filters the redirect HTTP response status code to use. 1386 * 1387 * @since 2.3.0 1388 * 1389 * @param int $status The HTTP response status code to use. 1390 * @param string $location The path or URL to redirect to. 1391 */ 1392 $status = apply_filters( 'wp_redirect_status', $status, $location ); 1393 1394 if ( ! $location ) { 1395 return false; 1396 } 1397 1398 if ( $status < 300 || 399 < $status ) { 1399 wp_die( __( 'HTTP redirect status code must be a redirection code, 3xx.' ) ); 1400 } 1401 1402 $location = wp_sanitize_redirect( $location ); 1403 1404 if ( ! $is_IIS && 'cgi-fcgi' !== PHP_SAPI ) { 1405 status_header( $status ); // This causes problems on IIS and some FastCGI setups. 1406 } 1407 1408 /** 1409 * Filters the X-Redirect-By header. 1410 * 1411 * Allows applications to identify themselves when they're doing a redirect. 1412 * 1413 * @since 5.1.0 1414 * 1415 * @param string $x_redirect_by The application doing the redirect. 1416 * @param int $status Status code to use. 1417 * @param string $location The path to redirect to. 1418 */ 1419 $x_redirect_by = apply_filters( 'x_redirect_by', $x_redirect_by, $status, $location ); 1420 if ( is_string( $x_redirect_by ) ) { 1421 header( "X-Redirect-By: $x_redirect_by" ); 1422 } 1423 1424 header( "Location: $location", true, $status ); 1425 1426 return true; 1427 } 1428 endif; 1429 1430 if ( ! function_exists( 'wp_sanitize_redirect' ) ) : 1431 /** 1432 * Sanitizes a URL for use in a redirect. 1433 * 1434 * @since 2.3.0 1435 * 1436 * @param string $location The path to redirect to. 1437 * @return string Redirect-sanitized URL. 1438 */ 1439 function wp_sanitize_redirect( $location ) { 1440 // Encode spaces. 1441 $location = str_replace( ' ', '%20', $location ); 1442 1443 $regex = '/ 1444 ( 1445 (?: [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx 1446 | \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2 1447 | [\xE1-\xEC][\x80-\xBF]{2} 1448 | \xED[\x80-\x9F][\x80-\xBF] 1449 | [\xEE-\xEF][\x80-\xBF]{2} 1450 | \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3 1451 | [\xF1-\xF3][\x80-\xBF]{3} 1452 | \xF4[\x80-\x8F][\x80-\xBF]{2} 1453 ){1,40} # ...one or more times 1454 )/x'; 1455 $location = preg_replace_callback( $regex, '_wp_sanitize_utf8_in_redirect', $location ); 1456 $location = preg_replace( '|[^a-z0-9-~+_.?#=&;,/:%!*\[\]()@]|i', '', $location ); 1457 $location = wp_kses_no_null( $location ); 1458 1459 // Remove %0D and %0A from location. 1460 $strip = array( '%0d', '%0a', '%0D', '%0A' ); 1461 return _deep_replace( $strip, $location ); 1462 } 1463 1464 /** 1465 * URL encode UTF-8 characters in a URL. 1466 * 1467 * @ignore 1468 * @since 4.2.0 1469 * @access private 1470 * 1471 * @see wp_sanitize_redirect() 1472 * 1473 * @param array $matches RegEx matches against the redirect location. 1474 * @return string URL-encoded version of the first RegEx match. 1475 */ 1476 function _wp_sanitize_utf8_in_redirect( $matches ) { 1477 return urlencode( $matches[0] ); 1478 } 1479 endif; 1480 1481 if ( ! function_exists( 'wp_safe_redirect' ) ) : 1482 /** 1483 * Performs a safe (local) redirect, using wp_redirect(). 1484 * 1485 * Checks whether the $location is using an allowed host, if it has an absolute 1486 * path. A plugin can therefore set or remove allowed host(s) to or from the 1487 * list. 1488 * 1489 * If the host is not allowed, then the redirect defaults to wp-admin on the siteurl 1490 * instead. This prevents malicious redirects which redirect to another host, 1491 * but only used in a few places. 1492 * 1493 * Note: wp_safe_redirect() does not exit automatically, and should almost always be 1494 * followed by a call to `exit;`: 1495 * 1496 * wp_safe_redirect( $url ); 1497 * exit; 1498 * 1499 * Exiting can also be selectively manipulated by using wp_safe_redirect() as a conditional 1500 * in conjunction with the {@see 'wp_redirect'} and {@see 'wp_redirect_location'} filters: 1501 * 1502 * if ( wp_safe_redirect( $url ) ) { 1503 * exit; 1504 * } 1505 * 1506 * @since 2.3.0 1507 * @since 5.1.0 The return value from wp_redirect() is now passed on, and the `$x_redirect_by` parameter was added. 1508 * 1509 * @param string $location The path or URL to redirect to. 1510 * @param int $status Optional. HTTP response status code to use. Default '302' (Moved Temporarily). 1511 * @param string $x_redirect_by Optional. The application doing the redirect. Default 'WordPress'. 1512 * @return bool False if the redirect was cancelled, true otherwise. 1513 */ 1514 function wp_safe_redirect( $location, $status = 302, $x_redirect_by = 'WordPress' ) { 1515 1516 // Need to look at the URL the way it will end up in wp_redirect(). 1517 $location = wp_sanitize_redirect( $location ); 1518 1519 /** 1520 * Filters the redirect fallback URL for when the provided redirect is not safe (local). 1521 * 1522 * @since 4.3.0 1523 * 1524 * @param string $fallback_url The fallback URL to use by default. 1525 * @param int $status The HTTP response status code to use. 1526 */ 1527 $location = wp_validate_redirect( $location, apply_filters( 'wp_safe_redirect_fallback', admin_url(), $status ) ); 1528 1529 return wp_redirect( $location, $status, $x_redirect_by ); 1530 } 1531 endif; 1532 1533 if ( ! function_exists( 'wp_validate_redirect' ) ) : 1534 /** 1535 * Validates a URL for use in a redirect. 1536 * 1537 * Checks whether the $location is using an allowed host, if it has an absolute 1538 * path. A plugin can therefore set or remove allowed host(s) to or from the 1539 * list. 1540 * 1541 * If the host is not allowed, then the redirect is to $default supplied 1542 * 1543 * @since 2.8.1 1544 * 1545 * @param string $location The redirect to validate 1546 * @param string $default The value to return if $location is not allowed 1547 * @return string redirect-sanitized URL 1548 */ 1549 function wp_validate_redirect( $location, $default = '' ) { 1550 $location = wp_sanitize_redirect( trim( $location, " \t\n\r\0\x08\x0B" ) ); 1551 // Browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'. 1552 if ( '//' === substr( $location, 0, 2 ) ) { 1553 $location = 'http:' . $location; 1554 } 1555 1556 // In PHP 5 parse_url() may fail if the URL query part contains 'http://'. 1557 // See https://bugs.php.net/bug.php?id=38143 1558 $cut = strpos( $location, '?' ); 1559 $test = $cut ? substr( $location, 0, $cut ) : $location; 1560 1561 $lp = parse_url( $test ); 1562 1563 // Give up if malformed URL. 1564 if ( false === $lp ) { 1565 return $default; 1566 } 1567 1568 // Allow only 'http' and 'https' schemes. No 'data:', etc. 1569 if ( isset( $lp['scheme'] ) && ! ( 'http' === $lp['scheme'] || 'https' === $lp['scheme'] ) ) { 1570 return $default; 1571 } 1572 1573 if ( ! isset( $lp['host'] ) && ! empty( $lp['path'] ) && '/' !== $lp['path'][0] ) { 1574 $path = ''; 1575 if ( ! empty( $_SERVER['REQUEST_URI'] ) ) { 1576 $path = dirname( parse_url( 'http://placeholder' . $_SERVER['REQUEST_URI'], PHP_URL_PATH ) . '?' ); 1577 $path = wp_normalize_path( $path ); 1578 } 1579 $location = '/' . ltrim( $path . '/', '/' ) . $location; 1580 } 1581 1582 // Reject if certain components are set but host is not. 1583 // This catches URLs like https:host.com for which parse_url() does not set the host field. 1584 if ( ! isset( $lp['host'] ) && ( isset( $lp['scheme'] ) || isset( $lp['user'] ) || isset( $lp['pass'] ) || isset( $lp['port'] ) ) ) { 1585 return $default; 1586 } 1587 1588 // Reject malformed components parse_url() can return on odd inputs. 1589 foreach ( array( 'user', 'pass', 'host' ) as $component ) { 1590 if ( isset( $lp[ $component ] ) && strpbrk( $lp[ $component ], ':/?#@' ) ) { 1591 return $default; 1592 } 1593 } 1594 1595 $wpp = parse_url( home_url() ); 1596 1597 /** 1598 * Filters the list of allowed hosts to redirect to. 1599 * 1600 * @since 2.3.0 1601 * 1602 * @param string[] $hosts An array of allowed host names. 1603 * @param string $host The host name of the redirect destination; empty string if not set. 1604 */ 1605 $allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array( $wpp['host'] ), isset( $lp['host'] ) ? $lp['host'] : '' ); 1606 1607 if ( isset( $lp['host'] ) && ( ! in_array( $lp['host'], $allowed_hosts, true ) && strtolower( $wpp['host'] ) !== $lp['host'] ) ) { 1608 $location = $default; 1609 } 1610 1611 return $location; 1612 } 1613 endif; 1614 1615 if ( ! function_exists( 'wp_notify_postauthor' ) ) : 1616 /** 1617 * Notify an author (and/or others) of a comment/trackback/pingback on a post. 1618 * 1619 * @since 1.0.0 1620 * 1621 * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. 1622 * @param string $deprecated Not used 1623 * @return bool True on completion. False if no email addresses were specified. 1624 */ 1625 function wp_notify_postauthor( $comment_id, $deprecated = null ) { 1626 if ( null !== $deprecated ) { 1627 _deprecated_argument( __FUNCTION__, '3.8.0' ); 1628 } 1629 1630 $comment = get_comment( $comment_id ); 1631 if ( empty( $comment ) || empty( $comment->comment_post_ID ) ) { 1632 return false; 1633 } 1634 1635 $post = get_post( $comment->comment_post_ID ); 1636 $author = get_userdata( $post->post_author ); 1637 1638 // Who to notify? By default, just the post author, but others can be added. 1639 $emails = array(); 1640 if ( $author ) { 1641 $emails[] = $author->user_email; 1642 } 1643 1644 /** 1645 * Filters the list of email addresses to receive a comment notification. 1646 * 1647 * By default, only post authors are notified of comments. This filter allows 1648 * others to be added. 1649 * 1650 * @since 3.7.0 1651 * 1652 * @param string[] $emails An array of email addresses to receive a comment notification. 1653 * @param string $comment_id The comment ID as a numeric string. 1654 */ 1655 $emails = apply_filters( 'comment_notification_recipients', $emails, $comment->comment_ID ); 1656 $emails = array_filter( $emails ); 1657 1658 // If there are no addresses to send the comment to, bail. 1659 if ( ! count( $emails ) ) { 1660 return false; 1661 } 1662 1663 // Facilitate unsetting below without knowing the keys. 1664 $emails = array_flip( $emails ); 1665 1666 /** 1667 * Filters whether to notify comment authors of their comments on their own posts. 1668 * 1669 * By default, comment authors aren't notified of their comments on their own 1670 * posts. This filter allows you to override that. 1671 * 1672 * @since 3.8.0 1673 * 1674 * @param bool $notify Whether to notify the post author of their own comment. 1675 * Default false. 1676 * @param string $comment_id The comment ID as a numeric string. 1677 */ 1678 $notify_author = apply_filters( 'comment_notification_notify_author', false, $comment->comment_ID ); 1679 1680 // The comment was left by the author. 1681 if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) { 1682 unset( $emails[ $author->user_email ] ); 1683 } 1684 1685 // The author moderated a comment on their own post. 1686 if ( $author && ! $notify_author && get_current_user_id() == $post->post_author ) { 1687 unset( $emails[ $author->user_email ] ); 1688 } 1689 1690 // The post author is no longer a member of the blog. 1691 if ( $author && ! $notify_author && ! user_can( $post->post_author, 'read_post', $post->ID ) ) { 1692 unset( $emails[ $author->user_email ] ); 1693 } 1694 1695 // If there's no email to send the comment to, bail, otherwise flip array back around for use below. 1696 if ( ! count( $emails ) ) { 1697 return false; 1698 } else { 1699 $emails = array_flip( $emails ); 1700 } 1701 1702 $switched_locale = switch_to_locale( get_locale() ); 1703 1704 $comment_author_domain = ''; 1705 if ( WP_Http::is_ip_address( $comment->comment_author_IP ) ) { 1706 $comment_author_domain = gethostbyaddr( $comment->comment_author_IP ); 1707 } 1708 1709 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1710 // We want to reverse this for the plain text arena of emails. 1711 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1712 $comment_content = wp_specialchars_decode( $comment->comment_content ); 1713 1714 switch ( $comment->comment_type ) { 1715 case 'trackback': 1716 /* translators: %s: Post title. */ 1717 $notify_message = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n"; 1718 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1719 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1720 /* translators: %s: Trackback/pingback/comment author URL. */ 1721 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1722 /* translators: %s: Comment text. */ 1723 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1724 $notify_message .= __( 'You can see all trackbacks on this post here:' ) . "\r\n"; 1725 /* translators: Trackback notification email subject. 1: Site title, 2: Post title. */ 1726 $subject = sprintf( __( '[%1$s] Trackback: "%2$s"' ), $blogname, $post->post_title ); 1727 break; 1728 1729 case 'pingback': 1730 /* translators: %s: Post title. */ 1731 $notify_message = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n"; 1732 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1733 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1734 /* translators: %s: Trackback/pingback/comment author URL. */ 1735 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1736 /* translators: %s: Comment text. */ 1737 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1738 $notify_message .= __( 'You can see all pingbacks on this post here:' ) . "\r\n"; 1739 /* translators: Pingback notification email subject. 1: Site title, 2: Post title. */ 1740 $subject = sprintf( __( '[%1$s] Pingback: "%2$s"' ), $blogname, $post->post_title ); 1741 break; 1742 1743 default: // Comments. 1744 /* translators: %s: Post title. */ 1745 $notify_message = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n"; 1746 /* translators: 1: Comment author's name, 2: Comment author's IP address, 3: Comment author's hostname. */ 1747 $notify_message .= sprintf( __( 'Author: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1748 /* translators: %s: Comment author email. */ 1749 $notify_message .= sprintf( __( 'Email: %s' ), $comment->comment_author_email ) . "\r\n"; 1750 /* translators: %s: Trackback/pingback/comment author URL. */ 1751 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1752 1753 if ( $comment->comment_parent && user_can( $post->post_author, 'edit_comment', $comment->comment_parent ) ) { 1754 /* translators: Comment moderation. %s: Parent comment edit URL. */ 1755 $notify_message .= sprintf( __( 'In reply to: %s' ), admin_url( "comment.php?action=editcomment&c={$comment->comment_parent}#wpbody-content" ) ) . "\r\n"; 1756 } 1757 1758 /* translators: %s: Comment text. */ 1759 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1760 $notify_message .= __( 'You can see all comments on this post here:' ) . "\r\n"; 1761 /* translators: Comment notification email subject. 1: Site title, 2: Post title. */ 1762 $subject = sprintf( __( '[%1$s] Comment: "%2$s"' ), $blogname, $post->post_title ); 1763 break; 1764 } 1765 1766 $notify_message .= get_permalink( $comment->comment_post_ID ) . "#comments\r\n\r\n"; 1767 /* translators: %s: Comment URL. */ 1768 $notify_message .= sprintf( __( 'Permalink: %s' ), get_comment_link( $comment ) ) . "\r\n"; 1769 1770 if ( user_can( $post->post_author, 'edit_comment', $comment->comment_ID ) ) { 1771 if ( EMPTY_TRASH_DAYS ) { 1772 /* translators: Comment moderation. %s: Comment action URL. */ 1773 $notify_message .= sprintf( __( 'Trash it: %s' ), admin_url( "comment.php?action=trash&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1774 } else { 1775 /* translators: Comment moderation. %s: Comment action URL. */ 1776 $notify_message .= sprintf( __( 'Delete it: %s' ), admin_url( "comment.php?action=delete&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1777 } 1778 /* translators: Comment moderation. %s: Comment action URL. */ 1779 $notify_message .= sprintf( __( 'Spam it: %s' ), admin_url( "comment.php?action=spam&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1780 } 1781 1782 $wp_email = 'wordpress@' . preg_replace( '#^www\.#', '', wp_parse_url( network_home_url(), PHP_URL_HOST ) ); 1783 1784 if ( '' === $comment->comment_author ) { 1785 $from = "From: \"$blogname\" <$wp_email>"; 1786 if ( '' !== $comment->comment_author_email ) { 1787 $reply_to = "Reply-To: $comment->comment_author_email"; 1788 } 1789 } else { 1790 $from = "From: \"$comment->comment_author\" <$wp_email>"; 1791 if ( '' !== $comment->comment_author_email ) { 1792 $reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>"; 1793 } 1794 } 1795 1796 $message_headers = "$from\n" 1797 . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; 1798 1799 if ( isset( $reply_to ) ) { 1800 $message_headers .= $reply_to . "\n"; 1801 } 1802 1803 /** 1804 * Filters the comment notification email text. 1805 * 1806 * @since 1.5.2 1807 * 1808 * @param string $notify_message The comment notification email text. 1809 * @param string $comment_id Comment ID as a numeric string. 1810 */ 1811 $notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment->comment_ID ); 1812 1813 /** 1814 * Filters the comment notification email subject. 1815 * 1816 * @since 1.5.2 1817 * 1818 * @param string $subject The comment notification email subject. 1819 * @param string $comment_id Comment ID as a numeric string. 1820 */ 1821 $subject = apply_filters( 'comment_notification_subject', $subject, $comment->comment_ID ); 1822 1823 /** 1824 * Filters the comment notification email headers. 1825 * 1826 * @since 1.5.2 1827 * 1828 * @param string $message_headers Headers for the comment notification email. 1829 * @param string $comment_id Comment ID as a numeric string. 1830 */ 1831 $message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment->comment_ID ); 1832 1833 foreach ( $emails as $email ) { 1834 wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); 1835 } 1836 1837 if ( $switched_locale ) { 1838 restore_previous_locale(); 1839 } 1840 1841 return true; 1842 } 1843 endif; 1844 1845 if ( ! function_exists( 'wp_notify_moderator' ) ) : 1846 /** 1847 * Notifies the moderator of the site about a new comment that is awaiting approval. 1848 * 1849 * @since 1.0.0 1850 * 1851 * @global wpdb $wpdb WordPress database abstraction object. 1852 * 1853 * Uses the {@see 'notify_moderator'} filter to determine whether the site moderator 1854 * should be notified, overriding the site setting. 1855 * 1856 * @param int $comment_id Comment ID. 1857 * @return true Always returns true. 1858 */ 1859 function wp_notify_moderator( $comment_id ) { 1860 global $wpdb; 1861 1862 $maybe_notify = get_option( 'moderation_notify' ); 1863 1864 /** 1865 * Filters whether to send the site moderator email notifications, overriding the site setting. 1866 * 1867 * @since 4.4.0 1868 * 1869 * @param bool $maybe_notify Whether to notify blog moderator. 1870 * @param int $comment_ID The id of the comment for the notification. 1871 */ 1872 $maybe_notify = apply_filters( 'notify_moderator', $maybe_notify, $comment_id ); 1873 1874 if ( ! $maybe_notify ) { 1875 return true; 1876 } 1877 1878 $comment = get_comment( $comment_id ); 1879 $post = get_post( $comment->comment_post_ID ); 1880 $user = get_userdata( $post->post_author ); 1881 // Send to the administration and to the post author if the author can modify the comment. 1882 $emails = array( get_option( 'admin_email' ) ); 1883 if ( $user && user_can( $user->ID, 'edit_comment', $comment_id ) && ! empty( $user->user_email ) ) { 1884 if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) { 1885 $emails[] = $user->user_email; 1886 } 1887 } 1888 1889 $switched_locale = switch_to_locale( get_locale() ); 1890 1891 $comment_author_domain = ''; 1892 if ( WP_Http::is_ip_address( $comment->comment_author_IP ) ) { 1893 $comment_author_domain = gethostbyaddr( $comment->comment_author_IP ); 1894 } 1895 1896 $comments_waiting = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_approved = '0'" ); 1897 1898 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1899 // We want to reverse this for the plain text arena of emails. 1900 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1901 $comment_content = wp_specialchars_decode( $comment->comment_content ); 1902 1903 switch ( $comment->comment_type ) { 1904 case 'trackback': 1905 /* translators: %s: Post title. */ 1906 $notify_message = sprintf( __( 'A new trackback on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1907 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1908 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1909 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1910 /* translators: %s: Trackback/pingback/comment author URL. */ 1911 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1912 $notify_message .= __( 'Trackback excerpt: ' ) . "\r\n" . $comment_content . "\r\n\r\n"; 1913 break; 1914 1915 case 'pingback': 1916 /* translators: %s: Post title. */ 1917 $notify_message = sprintf( __( 'A new pingback on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1918 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1919 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1920 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1921 /* translators: %s: Trackback/pingback/comment author URL. */ 1922 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1923 $notify_message .= __( 'Pingback excerpt: ' ) . "\r\n" . $comment_content . "\r\n\r\n"; 1924 break; 1925 1926 default: // Comments. 1927 /* translators: %s: Post title. */ 1928 $notify_message = sprintf( __( 'A new comment on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1929 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1930 /* translators: 1: Comment author's name, 2: Comment author's IP address, 3: Comment author's hostname. */ 1931 $notify_message .= sprintf( __( 'Author: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1932 /* translators: %s: Comment author email. */ 1933 $notify_message .= sprintf( __( 'Email: %s' ), $comment->comment_author_email ) . "\r\n"; 1934 /* translators: %s: Trackback/pingback/comment author URL. */ 1935 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1936 1937 if ( $comment->comment_parent ) { 1938 /* translators: Comment moderation. %s: Parent comment edit URL. */ 1939 $notify_message .= sprintf( __( 'In reply to: %s' ), admin_url( "comment.php?action=editcomment&c={$comment->comment_parent}#wpbody-content" ) ) . "\r\n"; 1940 } 1941 1942 /* translators: %s: Comment text. */ 1943 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1944 break; 1945 } 1946 1947 /* translators: Comment moderation. %s: Comment action URL. */ 1948 $notify_message .= sprintf( __( 'Approve it: %s' ), admin_url( "comment.php?action=approve&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1949 1950 if ( EMPTY_TRASH_DAYS ) { 1951 /* translators: Comment moderation. %s: Comment action URL. */ 1952 $notify_message .= sprintf( __( 'Trash it: %s' ), admin_url( "comment.php?action=trash&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1953 } else { 1954 /* translators: Comment moderation. %s: Comment action URL. */ 1955 $notify_message .= sprintf( __( 'Delete it: %s' ), admin_url( "comment.php?action=delete&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1956 } 1957 1958 /* translators: Comment moderation. %s: Comment action URL. */ 1959 $notify_message .= sprintf( __( 'Spam it: %s' ), admin_url( "comment.php?action=spam&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1960 1961 $notify_message .= sprintf( 1962 /* translators: Comment moderation. %s: Number of comments awaiting approval. */ 1963 _n( 1964 'Currently %s comment is waiting for approval. Please visit the moderation panel:', 1965 'Currently %s comments are waiting for approval. Please visit the moderation panel:', 1966 $comments_waiting 1967 ), 1968 number_format_i18n( $comments_waiting ) 1969 ) . "\r\n"; 1970 $notify_message .= admin_url( 'edit-comments.php?comment_status=moderated#wpbody-content' ) . "\r\n"; 1971 1972 /* translators: Comment moderation notification email subject. 1: Site title, 2: Post title. */ 1973 $subject = sprintf( __( '[%1$s] Please moderate: "%2$s"' ), $blogname, $post->post_title ); 1974 $message_headers = ''; 1975 1976 /** 1977 * Filters the list of recipients for comment moderation emails. 1978 * 1979 * @since 3.7.0 1980 * 1981 * @param string[] $emails List of email addresses to notify for comment moderation. 1982 * @param int $comment_id Comment ID. 1983 */ 1984 $emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id ); 1985 1986 /** 1987 * Filters the comment moderation email text. 1988 * 1989 * @since 1.5.2 1990 * 1991 * @param string $notify_message Text of the comment moderation email. 1992 * @param int $comment_id Comment ID. 1993 */ 1994 $notify_message = apply_filters( 'comment_moderation_text', $notify_message, $comment_id ); 1995 1996 /** 1997 * Filters the comment moderation email subject. 1998 * 1999 * @since 1.5.2 2000 * 2001 * @param string $subject Subject of the comment moderation email. 2002 * @param int $comment_id Comment ID. 2003 */ 2004 $subject = apply_filters( 'comment_moderation_subject', $subject, $comment_id ); 2005 2006 /** 2007 * Filters the comment moderation email headers. 2008 * 2009 * @since 2.8.0 2010 * 2011 * @param string $message_headers Headers for the comment moderation email. 2012 * @param int $comment_id Comment ID. 2013 */ 2014 $message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id ); 2015 2016 foreach ( $emails as $email ) { 2017 wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); 2018 } 2019 2020 if ( $switched_locale ) { 2021 restore_previous_locale(); 2022 } 2023 2024 return true; 2025 } 2026 endif; 2027 2028 if ( ! function_exists( 'wp_password_change_notification' ) ) : 2029 /** 2030 * Notify the blog admin of a user changing password, normally via email. 2031 * 2032 * @since 2.7.0 2033 * 2034 * @param WP_User $user User object. 2035 */ 2036 function wp_password_change_notification( $user ) { 2037 // Send a copy of password change notification to the admin, 2038 // but check to see if it's the admin whose password we're changing, and skip this. 2039 if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) { 2040 /* translators: %s: User name. */ 2041 $message = sprintf( __( 'Password changed for user: %s' ), $user->user_login ) . "\r\n"; 2042 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 2043 // We want to reverse this for the plain text arena of emails. 2044 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 2045 2046 $wp_password_change_notification_email = array( 2047 'to' => get_option( 'admin_email' ), 2048 /* translators: Password change notification email subject. %s: Site title. */ 2049 'subject' => __( '[%s] Password Changed' ), 2050 'message' => $message, 2051 'headers' => '', 2052 ); 2053 2054 /** 2055 * Filters the contents of the password change notification email sent to the site admin. 2056 * 2057 * @since 4.9.0 2058 * 2059 * @param array $wp_password_change_notification_email { 2060 * Used to build wp_mail(). 2061 * 2062 * @type string $to The intended recipient - site admin email address. 2063 * @type string $subject The subject of the email. 2064 * @type string $message The body of the email. 2065 * @type string $headers The headers of the email. 2066 * } 2067 * @param WP_User $user User object for user whose password was changed. 2068 * @param string $blogname The site title. 2069 */ 2070 $wp_password_change_notification_email = apply_filters( 'wp_password_change_notification_email', $wp_password_change_notification_email, $user, $blogname ); 2071 2072 wp_mail( 2073 $wp_password_change_notification_email['to'], 2074 wp_specialchars_decode( sprintf( $wp_password_change_notification_email['subject'], $blogname ) ), 2075 $wp_password_change_notification_email['message'], 2076 $wp_password_change_notification_email['headers'] 2077 ); 2078 } 2079 } 2080 endif; 2081 2082 if ( ! function_exists( 'wp_new_user_notification' ) ) : 2083 /** 2084 * Email login credentials to a newly-registered user. 2085 * 2086 * A new user registration notification is also sent to admin email. 2087 * 2088 * @since 2.0.0 2089 * @since 4.3.0 The `$plaintext_pass` parameter was changed to `$notify`. 2090 * @since 4.3.1 The `$plaintext_pass` parameter was deprecated. `$notify` added as a third parameter. 2091 * @since 4.6.0 The `$notify` parameter accepts 'user' for sending notification only to the user created. 2092 * 2093 * @param int $user_id User ID. 2094 * @param null $deprecated Not used (argument deprecated). 2095 * @param string $notify Optional. Type of notification that should happen. Accepts 'admin' or an empty 2096 * string (admin only), 'user', or 'both' (admin and user). Default empty. 2097 */ 2098 function wp_new_user_notification( $user_id, $deprecated = null, $notify = '' ) { 2099 if ( null !== $deprecated ) { 2100 _deprecated_argument( __FUNCTION__, '4.3.1' ); 2101 } 2102 2103 // Accepts only 'user', 'admin' , 'both' or default '' as $notify. 2104 if ( ! in_array( $notify, array( 'user', 'admin', 'both', '' ), true ) ) { 2105 return; 2106 } 2107 2108 $user = get_userdata( $user_id ); 2109 2110 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 2111 // We want to reverse this for the plain text arena of emails. 2112 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 2113 2114 if ( 'user' !== $notify ) { 2115 $switched_locale = switch_to_locale( get_locale() ); 2116 2117 /* translators: %s: Site title. */ 2118 $message = sprintf( __( 'New user registration on your site %s:' ), $blogname ) . "\r\n\r\n"; 2119 /* translators: %s: User login. */ 2120 $message .= sprintf( __( 'Username: %s' ), $user->user_login ) . "\r\n\r\n"; 2121 /* translators: %s: User email address. */ 2122 $message .= sprintf( __( 'Email: %s' ), $user->user_email ) . "\r\n"; 2123 2124 $wp_new_user_notification_email_admin = array( 2125 'to' => get_option( 'admin_email' ), 2126 /* translators: New user registration notification email subject. %s: Site title. */ 2127 'subject' => __( '[%s] New User Registration' ), 2128 'message' => $message, 2129 'headers' => '', 2130 ); 2131 2132 /** 2133 * Filters the contents of the new user notification email sent to the site admin. 2134 * 2135 * @since 4.9.0 2136 * 2137 * @param array $wp_new_user_notification_email_admin { 2138 * Used to build wp_mail(). 2139 * 2140 * @type string $to The intended recipient - site admin email address. 2141 * @type string $subject The subject of the email. 2142 * @type string $message The body of the email. 2143 * @type string $headers The headers of the email. 2144 * } 2145 * @param WP_User $user User object for new user. 2146 * @param string $blogname The site title. 2147 */ 2148 $wp_new_user_notification_email_admin = apply_filters( 'wp_new_user_notification_email_admin', $wp_new_user_notification_email_admin, $user, $blogname ); 2149 2150 wp_mail( 2151 $wp_new_user_notification_email_admin['to'], 2152 wp_specialchars_decode( sprintf( $wp_new_user_notification_email_admin['subject'], $blogname ) ), 2153 $wp_new_user_notification_email_admin['message'], 2154 $wp_new_user_notification_email_admin['headers'] 2155 ); 2156 2157 if ( $switched_locale ) { 2158 restore_previous_locale(); 2159 } 2160 } 2161 2162 // `$deprecated` was pre-4.3 `$plaintext_pass`. An empty `$plaintext_pass` didn't sent a user notification. 2163 if ( 'admin' === $notify || ( empty( $deprecated ) && empty( $notify ) ) ) { 2164 return; 2165 } 2166 2167 $key = get_password_reset_key( $user ); 2168 if ( is_wp_error( $key ) ) { 2169 return; 2170 } 2171 2172 $switched_locale = switch_to_locale( get_user_locale( $user ) ); 2173 2174 /* translators: %s: User login. */ 2175 $message = sprintf( __( 'Username: %s' ), $user->user_login ) . "\r\n\r\n"; 2176 $message .= __( 'To set your password, visit the following address:' ) . "\r\n\r\n"; 2177 $message .= network_site_url( "wp-login.php?action=rp&key=$key&login=" . rawurlencode( $user->user_login ), 'login' ) . "\r\n\r\n"; 2178 2179 $message .= wp_login_url() . "\r\n"; 2180 2181 $wp_new_user_notification_email = array( 2182 'to' => $user->user_email, 2183 /* translators: Login details notification email subject. %s: Site title. */ 2184 'subject' => __( '[%s] Login Details' ), 2185 'message' => $message, 2186 'headers' => '', 2187 ); 2188 2189 /** 2190 * Filters the contents of the new user notification email sent to the new user. 2191 * 2192 * @since 4.9.0 2193 * 2194 * @param array $wp_new_user_notification_email { 2195 * Used to build wp_mail(). 2196 * 2197 * @type string $to The intended recipient - New user email address. 2198 * @type string $subject The subject of the email. 2199 * @type string $message The body of the email. 2200 * @type string $headers The headers of the email. 2201 * } 2202 * @param WP_User $user User object for new user. 2203 * @param string $blogname The site title. 2204 */ 2205 $wp_new_user_notification_email = apply_filters( 'wp_new_user_notification_email', $wp_new_user_notification_email, $user, $blogname ); 2206 2207 wp_mail( 2208 $wp_new_user_notification_email['to'], 2209 wp_specialchars_decode( sprintf( $wp_new_user_notification_email['subject'], $blogname ) ), 2210 $wp_new_user_notification_email['message'], 2211 $wp_new_user_notification_email['headers'] 2212 ); 2213 2214 if ( $switched_locale ) { 2215 restore_previous_locale(); 2216 } 2217 } 2218 endif; 2219 2220 if ( ! function_exists( 'wp_nonce_tick' ) ) : 2221 /** 2222 * Returns the time-dependent variable for nonce creation. 2223 * 2224 * A nonce has a lifespan of two ticks. Nonces in their second tick may be 2225 * updated, e.g. by autosave. 2226 * 2227 * @since 2.5.0 2228 * 2229 * @return float Float value rounded up to the next highest integer. 2230 */ 2231 function wp_nonce_tick() { 2232 /** 2233 * Filters the lifespan of nonces in seconds. 2234 * 2235 * @since 2.5.0 2236 * 2237 * @param int $lifespan Lifespan of nonces in seconds. Default 86,400 seconds, or one day. 2238 */ 2239 $nonce_life = apply_filters( 'nonce_life', DAY_IN_SECONDS ); 2240 2241 return ceil( time() / ( $nonce_life / 2 ) ); 2242 } 2243 endif; 2244 2245 if ( ! function_exists( 'wp_verify_nonce' ) ) : 2246 /** 2247 * Verifies that a correct security nonce was used with time limit. 2248 * 2249 * A nonce is valid for 24 hours (by default). 2250 * 2251 * @since 2.0.3 2252 * 2253 * @param string $nonce Nonce value that was used for verification, usually via a form field. 2254 * @param string|int $action Should give context to what is taking place and be the same when nonce was created. 2255 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 2256 * 2 if the nonce is valid and generated between 12-24 hours ago. 2257 * False if the nonce is invalid. 2258 */ 2259 function wp_verify_nonce( $nonce, $action = -1 ) { 2260 $nonce = (string) $nonce; 2261 $user = wp_get_current_user(); 2262 $uid = (int) $user->ID; 2263 if ( ! $uid ) { 2264 /** 2265 * Filters whether the user who generated the nonce is logged out. 2266 * 2267 * @since 3.5.0 2268 * 2269 * @param int $uid ID of the nonce-owning user. 2270 * @param string $action The nonce action. 2271 */ 2272 $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); 2273 } 2274 2275 if ( empty( $nonce ) ) { 2276 return false; 2277 } 2278 2279 $token = wp_get_session_token(); 2280 $i = wp_nonce_tick(); 2281 2282 // Nonce generated 0-12 hours ago. 2283 $expected = substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2284 if ( hash_equals( $expected, $nonce ) ) { 2285 return 1; 2286 } 2287 2288 // Nonce generated 12-24 hours ago. 2289 $expected = substr( wp_hash( ( $i - 1 ) . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2290 if ( hash_equals( $expected, $nonce ) ) { 2291 return 2; 2292 } 2293 2294 /** 2295 * Fires when nonce verification fails. 2296 * 2297 * @since 4.4.0 2298 * 2299 * @param string $nonce The invalid nonce. 2300 * @param string|int $action The nonce action. 2301 * @param WP_User $user The current user object. 2302 * @param string $token The user's session token. 2303 */ 2304 do_action( 'wp_verify_nonce_failed', $nonce, $action, $user, $token ); 2305 2306 // Invalid nonce. 2307 return false; 2308 } 2309 endif; 2310 2311 if ( ! function_exists( 'wp_create_nonce' ) ) : 2312 /** 2313 * Creates a cryptographic token tied to a specific action, user, user session, 2314 * and window of time. 2315 * 2316 * @since 2.0.3 2317 * @since 4.0.0 Session tokens were integrated with nonce creation 2318 * 2319 * @param string|int $action Scalar value to add context to the nonce. 2320 * @return string The token. 2321 */ 2322 function wp_create_nonce( $action = -1 ) { 2323 $user = wp_get_current_user(); 2324 $uid = (int) $user->ID; 2325 if ( ! $uid ) { 2326 /** This filter is documented in wp-includes/pluggable.php */ 2327 $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); 2328 } 2329 2330 $token = wp_get_session_token(); 2331 $i = wp_nonce_tick(); 2332 2333 return substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2334 } 2335 endif; 2336 2337 if ( ! function_exists( 'wp_salt' ) ) : 2338 /** 2339 * Returns a salt to add to hashes. 2340 * 2341 * Salts are created using secret keys. Secret keys are located in two places: 2342 * in the database and in the wp-config.php file. The secret key in the database 2343 * is randomly generated and will be appended to the secret keys in wp-config.php. 2344 * 2345 * The secret keys in wp-config.php should be updated to strong, random keys to maximize 2346 * security. Below is an example of how the secret key constants are defined. 2347 * Do not paste this example directly into wp-config.php. Instead, have a 2348 * {@link https://api.wordpress.org/secret-key/1.1/salt/ secret key created} just 2349 * for you. 2350 * 2351 * define('AUTH_KEY', ' Xakm<o xQy rw4EMsLKM-?!T+,PFF})H4lzcW57AF0U@N@< >M%G4Yt>f`z]MON'); 2352 * define('SECURE_AUTH_KEY', 'LzJ}op]mr|6+![P}Ak:uNdJCJZd>(Hx.-Mh#Tz)pCIU#uGEnfFz|f ;;eU%/U^O~'); 2353 * define('LOGGED_IN_KEY', '|i|Ux`9<p-h$aFf(qnT:sDO:D1P^wZ$$/Ra@miTJi9G;ddp_<q}6H1)o|a +&JCM'); 2354 * define('NONCE_KEY', '%:R{[P|,s.KuMltH5}cI;/k<Gx~j!f0I)m_sIyu+&NJZ)-iO>z7X>QYR0Z_XnZ@|'); 2355 * define('AUTH_SALT', 'eZyT)-Naw]F8CwA*VaW#q*|.)g@o}||wf~@C-YSt}(dh_r6EbI#A,y|nU2{B#JBW'); 2356 * define('SECURE_AUTH_SALT', '!=oLUTXh,QW=H `}`L|9/^4-3 STz},T(w}W<I`.JjPi)<Bmf1v,HpGe}T1:Xt7n'); 2357 * define('LOGGED_IN_SALT', '+XSqHc;@Q*K_b|Z?NC[3H!!EONbh.n<+=uKR:>*c(u`g~EJBf#8u#R{mUEZrozmm'); 2358 * define('NONCE_SALT', 'h`GXHhD>SLWVfg1(1(N{;.V!MoE(SfbA_ksP@&`+AycHcAV$+?@3q+rxV{%^VyKT'); 2359 * 2360 * Salting passwords helps against tools which has stored hashed values of 2361 * common dictionary strings. The added values makes it harder to crack. 2362 * 2363 * @since 2.5.0 2364 * 2365 * @link https://api.wordpress.org/secret-key/1.1/salt/ Create secrets for wp-config.php 2366 * 2367 * @param string $scheme Authentication scheme (auth, secure_auth, logged_in, nonce) 2368 * @return string Salt value 2369 */ 2370 function wp_salt( $scheme = 'auth' ) { 2371 static $cached_salts = array(); 2372 if ( isset( $cached_salts[ $scheme ] ) ) { 2373 /** 2374 * Filters the WordPress salt. 2375 * 2376 * @since 2.5.0 2377 * 2378 * @param string $cached_salt Cached salt for the given scheme. 2379 * @param string $scheme Authentication scheme. Values include 'auth', 2380 * 'secure_auth', 'logged_in', and 'nonce'. 2381 */ 2382 return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); 2383 } 2384 2385 static $duplicated_keys; 2386 if ( null === $duplicated_keys ) { 2387 $duplicated_keys = array( 'put your unique phrase here' => true ); 2388 foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { 2389 foreach ( array( 'KEY', 'SALT' ) as $second ) { 2390 if ( ! defined( "{$first}_{$second}" ) ) { 2391 continue; 2392 } 2393 $value = constant( "{$first}_{$second}" ); 2394 $duplicated_keys[ $value ] = isset( $duplicated_keys[ $value ] ); 2395 } 2396 } 2397 } 2398 2399 $values = array( 2400 'key' => '', 2401 'salt' => '', 2402 ); 2403 if ( defined( 'SECRET_KEY' ) && SECRET_KEY && empty( $duplicated_keys[ SECRET_KEY ] ) ) { 2404 $values['key'] = SECRET_KEY; 2405 } 2406 if ( 'auth' === $scheme && defined( 'SECRET_SALT' ) && SECRET_SALT && empty( $duplicated_keys[ SECRET_SALT ] ) ) { 2407 $values['salt'] = SECRET_SALT; 2408 } 2409 2410 if ( in_array( $scheme, array( 'auth', 'secure_auth', 'logged_in', 'nonce' ), true ) ) { 2411 foreach ( array( 'key', 'salt' ) as $type ) { 2412 $const = strtoupper( "{$scheme}_{$type}" ); 2413 if ( defined( $const ) && constant( $const ) && empty( $duplicated_keys[ constant( $const ) ] ) ) { 2414 $values[ $type ] = constant( $const ); 2415 } elseif ( ! $values[ $type ] ) { 2416 $values[ $type ] = get_site_option( "{$scheme}_{$type}" ); 2417 if ( ! $values[ $type ] ) { 2418 $values[ $type ] = wp_generate_password( 64, true, true ); 2419 update_site_option( "{$scheme}_{$type}", $values[ $type ] ); 2420 } 2421 } 2422 } 2423 } else { 2424 if ( ! $values['key'] ) { 2425 $values['key'] = get_site_option( 'secret_key' ); 2426 if ( ! $values['key'] ) { 2427 $values['key'] = wp_generate_password( 64, true, true ); 2428 update_site_option( 'secret_key', $values['key'] ); 2429 } 2430 } 2431 $values['salt'] = hash_hmac( 'md5', $scheme, $values['key'] ); 2432 } 2433 2434 $cached_salts[ $scheme ] = $values['key'] . $values['salt']; 2435 2436 /** This filter is documented in wp-includes/pluggable.php */ 2437 return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); 2438 } 2439 endif; 2440 2441 if ( ! function_exists( 'wp_hash' ) ) : 2442 /** 2443 * Get hash of given string. 2444 * 2445 * @since 2.0.3 2446 * 2447 * @param string $data Plain text to hash 2448 * @param string $scheme Authentication scheme (auth, secure_auth, logged_in, nonce) 2449 * @return string Hash of $data 2450 */ 2451 function wp_hash( $data, $scheme = 'auth' ) { 2452 $salt = wp_salt( $scheme ); 2453 2454 return hash_hmac( 'md5', $data, $salt ); 2455 } 2456 endif; 2457 2458 if ( ! function_exists( 'wp_hash_password' ) ) : 2459 /** 2460 * Create a hash (encrypt) of a plain text password. 2461 * 2462 * For integration with other applications, this function can be overwritten to 2463 * instead use the other package password checking algorithm. 2464 * 2465 * @since 2.5.0 2466 * 2467 * @global PasswordHash $wp_hasher PHPass object 2468 * 2469 * @param string $password Plain text user password to hash 2470 * @return string The hash string of the password 2471 */ 2472 function wp_hash_password( $password ) { 2473 global $wp_hasher; 2474 2475 if ( empty( $wp_hasher ) ) { 2476 require_once ABSPATH . WPINC . '/class-phpass.php'; 2477 // By default, use the portable hash from phpass. 2478 $wp_hasher = new PasswordHash( 8, true ); 2479 } 2480 2481 return $wp_hasher->HashPassword( trim( $password ) ); 2482 } 2483 endif; 2484 2485 if ( ! function_exists( 'wp_check_password' ) ) : 2486 /** 2487 * Checks the plaintext password against the encrypted Password. 2488 * 2489 * Maintains compatibility between old version and the new cookie authentication 2490 * protocol using PHPass library. The $hash parameter is the encrypted password 2491 * and the function compares the plain text password when encrypted similarly 2492 * against the already encrypted password to see if they match. 2493 * 2494 * For integration with other applications, this function can be overwritten to 2495 * instead use the other package password checking algorithm. 2496 * 2497 * @since 2.5.0 2498 * 2499 * @global PasswordHash $wp_hasher PHPass object used for checking the password 2500 * against the $hash + $password 2501 * @uses PasswordHash::CheckPassword 2502 * 2503 * @param string $password Plaintext user's password 2504 * @param string $hash Hash of the user's password to check against. 2505 * @param string|int $user_id Optional. User ID. 2506 * @return bool False, if the $password does not match the hashed password 2507 */ 2508 function wp_check_password( $password, $hash, $user_id = '' ) { 2509 global $wp_hasher; 2510 2511 // If the hash is still md5... 2512 if ( strlen( $hash ) <= 32 ) { 2513 $check = hash_equals( $hash, md5( $password ) ); 2514 if ( $check && $user_id ) { 2515 // Rehash using new hash. 2516 wp_set_password( $password, $user_id ); 2517 $hash = wp_hash_password( $password ); 2518 } 2519 2520 /** 2521 * Filters whether the plaintext password matches the encrypted password. 2522 * 2523 * @since 2.5.0 2524 * 2525 * @param bool $check Whether the passwords match. 2526 * @param string $password The plaintext password. 2527 * @param string $hash The hashed password. 2528 * @param string|int $user_id User ID. Can be empty. 2529 */ 2530 return apply_filters( 'check_password', $check, $password, $hash, $user_id ); 2531 } 2532 2533 // If the stored hash is longer than an MD5, 2534 // presume the new style phpass portable hash. 2535 if ( empty( $wp_hasher ) ) { 2536 require_once ABSPATH . WPINC . '/class-phpass.php'; 2537 // By default, use the portable hash from phpass. 2538 $wp_hasher = new PasswordHash( 8, true ); 2539 } 2540 2541 $check = $wp_hasher->CheckPassword( $password, $hash ); 2542 2543 /** This filter is documented in wp-includes/pluggable.php */ 2544 return apply_filters( 'check_password', $check, $password, $hash, $user_id ); 2545 } 2546 endif; 2547 2548 if ( ! function_exists( 'wp_generate_password' ) ) : 2549 /** 2550 * Generates a random password drawn from the defined set of characters. 2551 * 2552 * Uses wp_rand() is used to create passwords with far less predictability 2553 * than similar native PHP functions like `rand()` or `mt_rand()`. 2554 * 2555 * @since 2.5.0 2556 * 2557 * @param int $length Optional. The length of password to generate. Default 12. 2558 * @param bool $special_chars Optional. Whether to include standard special characters. 2559 * Default true. 2560 * @param bool $extra_special_chars Optional. Whether to include other special characters. 2561 * Used when generating secret keys and salts. Default false. 2562 * @return string The random password. 2563 */ 2564 function wp_generate_password( $length = 12, $special_chars = true, $extra_special_chars = false ) { 2565 $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; 2566 if ( $special_chars ) { 2567 $chars .= '!@#$%^&*()'; 2568 } 2569 if ( $extra_special_chars ) { 2570 $chars .= '-_ []{}<>~`+=,.;:/?|'; 2571 } 2572 2573 $password = ''; 2574 for ( $i = 0; $i < $length; $i++ ) { 2575 $password .= substr( $chars, wp_rand( 0, strlen( $chars ) - 1 ), 1 ); 2576 } 2577 2578 /** 2579 * Filters the randomly-generated password. 2580 * 2581 * @since 3.0.0 2582 * @since 5.3.0 Added the `$length`, `$special_chars`, and `$extra_special_chars` parameters. 2583 * 2584 * @param string $password The generated password. 2585 * @param int $length The length of password to generate. 2586 * @param bool $special_chars Whether to include standard special characters. 2587 * @param bool $extra_special_chars Whether to include other special characters. 2588 */ 2589 return apply_filters( 'random_password', $password, $length, $special_chars, $extra_special_chars ); 2590 } 2591 endif; 2592 2593 if ( ! function_exists( 'wp_rand' ) ) : 2594 /** 2595 * Generates a random number. 2596 * 2597 * @since 2.6.2 2598 * @since 4.4.0 Uses PHP7 random_int() or the random_compat library if available. 2599 * 2600 * @global string $rnd_value 2601 * 2602 * @param int $min Lower limit for the generated number 2603 * @param int $max Upper limit for the generated number 2604 * @return int A random number between min and max 2605 */ 2606 function wp_rand( $min = 0, $max = 0 ) { 2607 global $rnd_value; 2608 2609 // Some misconfigured 32-bit environments (Entropy PHP, for example) 2610 // truncate integers larger than PHP_INT_MAX to PHP_INT_MAX rather than overflowing them to floats. 2611 $max_random_number = 3000000000 === 2147483647 ? (float) '4294967295' : 4294967295; // 4294967295 = 0xffffffff 2612 2613 // We only handle ints, floats are truncated to their integer value. 2614 $min = (int) $min; 2615 $max = (int) $max; 2616 2617 // Use PHP's CSPRNG, or a compatible method. 2618 static $use_random_int_functionality = true; 2619 if ( $use_random_int_functionality ) { 2620 try { 2621 $_max = ( 0 != $max ) ? $max : $max_random_number; 2622 // wp_rand() can accept arguments in either order, PHP cannot. 2623 $_max = max( $min, $_max ); 2624 $_min = min( $min, $_max ); 2625 $val = random_int( $_min, $_max ); 2626 if ( false !== $val ) { 2627 return absint( $val ); 2628 } else { 2629 $use_random_int_functionality = false; 2630 } 2631 } catch ( Error $e ) { 2632 $use_random_int_functionality = false; 2633 } catch ( Exception $e ) { 2634 $use_random_int_functionality = false; 2635 } 2636 } 2637 2638 // Reset $rnd_value after 14 uses. 2639 // 32 (md5) + 40 (sha1) + 40 (sha1) / 8 = 14 random numbers from $rnd_value. 2640 if ( strlen( $rnd_value ) < 8 ) { 2641 if ( defined( 'WP_SETUP_CONFIG' ) ) { 2642 static $seed = ''; 2643 } else { 2644 $seed = get_transient( 'random_seed' ); 2645 } 2646 $rnd_value = md5( uniqid( microtime() . mt_rand(), true ) . $seed ); 2647 $rnd_value .= sha1( $rnd_value ); 2648 $rnd_value .= sha1( $rnd_value . $seed ); 2649 $seed = md5( $seed . $rnd_value ); 2650 if ( ! defined( 'WP_SETUP_CONFIG' ) && ! defined( 'WP_INSTALLING' ) ) { 2651 set_transient( 'random_seed', $seed ); 2652 } 2653 } 2654 2655 // Take the first 8 digits for our value. 2656 $value = substr( $rnd_value, 0, 8 ); 2657 2658 // Strip the first eight, leaving the remainder for the next call to wp_rand(). 2659 $rnd_value = substr( $rnd_value, 8 ); 2660 2661 $value = abs( hexdec( $value ) ); 2662 2663 // Reduce the value to be within the min - max range. 2664 if ( 0 != $max ) { 2665 $value = $min + ( $max - $min + 1 ) * $value / ( $max_random_number + 1 ); 2666 } 2667 2668 return abs( (int) $value ); 2669 } 2670 endif; 2671 2672 if ( ! function_exists( 'wp_set_password' ) ) : 2673 /** 2674 * Updates the user's password with a new encrypted one. 2675 * 2676 * For integration with other applications, this function can be overwritten to 2677 * instead use the other package password checking algorithm. 2678 * 2679 * Please note: This function should be used sparingly and is really only meant for single-time 2680 * application. Leveraging this improperly in a plugin or theme could result in an endless loop 2681 * of password resets if precautions are not taken to ensure it does not execute on every page load. 2682 * 2683 * @since 2.5.0 2684 * 2685 * @global wpdb $wpdb WordPress database abstraction object. 2686 * 2687 * @param string $password The plaintext new user password 2688 * @param int $user_id User ID 2689 */ 2690 function wp_set_password( $password, $user_id ) { 2691 global $wpdb; 2692 2693 $hash = wp_hash_password( $password ); 2694 $wpdb->update( 2695 $wpdb->users, 2696 array( 2697 'user_pass' => $hash, 2698 'user_activation_key' => '', 2699 ), 2700 array( 'ID' => $user_id ) 2701 ); 2702 2703 clean_user_cache( $user_id ); 2704 } 2705 endif; 2706 2707 if ( ! function_exists( 'get_avatar' ) ) : 2708 /** 2709 * Retrieve the avatar `<img>` tag for a user, email address, MD5 hash, comment, or post. 2710 * 2711 * @since 2.5.0 2712 * @since 4.2.0 Optional `$args` parameter added. 2713 * 2714 * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user_id, gravatar md5 hash, 2715 * user email, WP_User object, WP_Post object, or WP_Comment object. 2716 * @param int $size Optional. Height and width of the avatar image file in pixels. Default 96. 2717 * @param string $default Optional. URL for the default image or a default type. Accepts '404' 2718 * (return a 404 instead of a default image), 'retro' (8bit), 'monsterid' 2719 * (monster), 'wavatar' (cartoon face), 'indenticon' (the "quilt"), 2720 * 'mystery', 'mm', or 'mysteryman' (The Oyster Man), 'blank' (transparent GIF), 2721 * or 'gravatar_default' (the Gravatar logo). Default is the value of the 2722 * 'avatar_default' option, with a fallback of 'mystery'. 2723 * @param string $alt Optional. Alternative text to use in img tag. Default empty. 2724 * @param array $args { 2725 * Optional. Extra arguments to retrieve the avatar. 2726 * 2727 * @type int $height Display height of the avatar in pixels. Defaults to $size. 2728 * @type int $width Display width of the avatar in pixels. Defaults to $size. 2729 * @type bool $force_default Whether to always show the default image, never the Gravatar. Default false. 2730 * @type string $rating What rating to display avatars up to. Accepts 'G', 'PG', 'R', 'X', and are 2731 * judged in that order. Default is the value of the 'avatar_rating' option. 2732 * @type string $scheme URL scheme to use. See set_url_scheme() for accepted values. 2733 * Default null. 2734 * @type array|string $class Array or string of additional classes to add to the img element. 2735 * Default null. 2736 * @type bool $force_display Whether to always show the avatar - ignores the show_avatars option. 2737 * Default false. 2738 * @type string $loading Value for the `loading` attribute. 2739 * Default null. 2740 * @type string $extra_attr HTML attributes to insert in the IMG element. Is not sanitized. Default empty. 2741 * } 2742 * @return string|false `<img>` tag for the user's avatar. False on failure. 2743 */ 2744 function get_avatar( $id_or_email, $size = 96, $default = '', $alt = '', $args = null ) { 2745 $defaults = array( 2746 // get_avatar_data() args. 2747 'size' => 96, 2748 'height' => null, 2749 'width' => null, 2750 'default' => get_option( 'avatar_default', 'mystery' ), 2751 'force_default' => false, 2752 'rating' => get_option( 'avatar_rating' ), 2753 'scheme' => null, 2754 'alt' => '', 2755 'class' => null, 2756 'force_display' => false, 2757 'loading' => null, 2758 'extra_attr' => '', 2759 ); 2760 2761 if ( wp_lazy_loading_enabled( 'img', 'get_avatar' ) ) { 2762 $defaults['loading'] = wp_get_loading_attr_default( 'get_avatar' ); 2763 } 2764 2765 if ( empty( $args ) ) { 2766 $args = array(); 2767 } 2768 2769 $args['size'] = (int) $size; 2770 $args['default'] = $default; 2771 $args['alt'] = $alt; 2772 2773 $args = wp_parse_args( $args, $defaults ); 2774 2775 if ( empty( $args['height'] ) ) { 2776 $args['height'] = $args['size']; 2777 } 2778 if ( empty( $args['width'] ) ) { 2779 $args['width'] = $args['size']; 2780 } 2781 2782 if ( is_object( $id_or_email ) && isset( $id_or_email->comment_ID ) ) { 2783 $id_or_email = get_comment( $id_or_email ); 2784 } 2785 2786 /** 2787 * Allows the HTML for a user's avatar to be returned early. 2788 * 2789 * Returning a non-null value will effectively short-circuit get_avatar(), passing 2790 * the value through the {@see 'get_avatar'} filter and returning early. 2791 * 2792 * @since 4.2.0 2793 * 2794 * @param string|null $avatar HTML for the user's avatar. Default null. 2795 * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, 2796 * user email, WP_User object, WP_Post object, or WP_Comment object. 2797 * @param array $args Arguments passed to get_avatar_url(), after processing. 2798 */ 2799 $avatar = apply_filters( 'pre_get_avatar', null, $id_or_email, $args ); 2800 2801 if ( ! is_null( $avatar ) ) { 2802 /** This filter is documented in wp-includes/pluggable.php */ 2803 return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); 2804 } 2805 2806 if ( ! $args['force_display'] && ! get_option( 'show_avatars' ) ) { 2807 return false; 2808 } 2809 2810 $url2x = get_avatar_url( $id_or_email, array_merge( $args, array( 'size' => $args['size'] * 2 ) ) ); 2811 2812 $args = get_avatar_data( $id_or_email, $args ); 2813 2814 $url = $args['url']; 2815 2816 if ( ! $url || is_wp_error( $url ) ) { 2817 return false; 2818 } 2819 2820 $class = array( 'avatar', 'avatar-' . (int) $args['size'], 'photo' ); 2821 2822 if ( ! $args['found_avatar'] || $args['force_default'] ) { 2823 $class[] = 'avatar-default'; 2824 } 2825 2826 if ( $args['class'] ) { 2827 if ( is_array( $args['class'] ) ) { 2828 $class = array_merge( $class, $args['class'] ); 2829 } else { 2830 $class[] = $args['class']; 2831 } 2832 } 2833 2834 // Add `loading` attribute. 2835 $extra_attr = $args['extra_attr']; 2836 $loading = $args['loading']; 2837 2838 if ( in_array( $loading, array( 'lazy', 'eager' ), true ) && ! preg_match( '/\bloading\s*=/', $extra_attr ) ) { 2839 if ( ! empty( $extra_attr ) ) { 2840 $extra_attr .= ' '; 2841 } 2842 2843 $extra_attr .= "loading='{$loading}'"; 2844 } 2845 2846 $avatar = sprintf( 2847 "<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>", 2848 esc_attr( $args['alt'] ), 2849 esc_url( $url ), 2850 esc_url( $url2x ) . ' 2x', 2851 esc_attr( implode( ' ', $class ) ), 2852 (int) $args['height'], 2853 (int) $args['width'], 2854 $extra_attr 2855 ); 2856 2857 /** 2858 * Filters the HTML for a user's avatar. 2859 * 2860 * @since 2.5.0 2861 * @since 4.2.0 The `$args` parameter was added. 2862 * 2863 * @param string $avatar HTML for the user's avatar. 2864 * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, 2865 * user email, WP_User object, WP_Post object, or WP_Comment object. 2866 * @param int $size Square avatar width and height in pixels to retrieve. 2867 * @param string $default URL for the default image or a default type. Accepts '404', 'retro', 'monsterid', 2868 * 'wavatar', 'indenticon', 'mystery', 'mm', 'mysteryman', 'blank', or 'gravatar_default'. 2869 * @param string $alt Alternative text to use in the avatar image tag. 2870 * @param array $args Arguments passed to get_avatar_data(), after processing. 2871 */ 2872 return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); 2873 } 2874 endif; 2875 2876 if ( ! function_exists( 'wp_text_diff' ) ) : 2877 /** 2878 * Displays a human readable HTML representation of the difference between two strings. 2879 * 2880 * The Diff is available for getting the changes between versions. The output is 2881 * HTML, so the primary use is for displaying the changes. If the two strings 2882 * are equivalent, then an empty string will be returned. 2883 * 2884 * @since 2.6.0 2885 * 2886 * @see wp_parse_args() Used to change defaults to user defined settings. 2887 * @uses Text_Diff 2888 * @uses WP_Text_Diff_Renderer_Table 2889 * 2890 * @param string $left_string "old" (left) version of string 2891 * @param string $right_string "new" (right) version of string 2892 * @param string|array $args { 2893 * Associative array of options to pass to WP_Text_Diff_Renderer_Table(). 2894 * 2895 * @type string $title Titles the diff in a manner compatible 2896 * with the output. Default empty. 2897 * @type string $title_left Change the HTML to the left of the title. 2898 * Default empty. 2899 * @type string $title_right Change the HTML to the right of the title. 2900 * Default empty. 2901 * @type bool $show_split_view True for split view (two columns), false for 2902 * un-split view (single column). Default true. 2903 * } 2904 * @return string Empty string if strings are equivalent or HTML with differences. 2905 */ 2906 function wp_text_diff( $left_string, $right_string, $args = null ) { 2907 $defaults = array( 2908 'title' => '', 2909 'title_left' => '', 2910 'title_right' => '', 2911 'show_split_view' => true, 2912 ); 2913 $args = wp_parse_args( $args, $defaults ); 2914 2915 if ( ! class_exists( 'WP_Text_Diff_Renderer_Table', false ) ) { 2916 require ABSPATH . WPINC . '/wp-diff.php'; 2917 } 2918 2919 $left_string = normalize_whitespace( $left_string ); 2920 $right_string = normalize_whitespace( $right_string ); 2921 2922 $left_lines = explode( "\n", $left_string ); 2923 $right_lines = explode( "\n", $right_string ); 2924 $text_diff = new Text_Diff( $left_lines, $right_lines ); 2925 $renderer = new WP_Text_Diff_Renderer_Table( $args ); 2926 $diff = $renderer->render( $text_diff ); 2927 2928 if ( ! $diff ) { 2929 return ''; 2930 } 2931 2932 $is_split_view = ! empty( $args['show_split_view'] ); 2933 $is_split_view_class = $is_split_view ? ' is-split-view' : ''; 2934 2935 $r = "<table class='diff$is_split_view_class'>\n"; 2936 2937 if ( $args['title'] ) { 2938 $r .= "<caption class='diff-title'>$args[title]</caption>\n"; 2939 } 2940 2941 if ( $args['title_left'] || $args['title_right'] ) { 2942 $r .= '<thead>'; 2943 } 2944 2945 if ( $args['title_left'] || $args['title_right'] ) { 2946 $th_or_td_left = empty( $args['title_left'] ) ? 'td' : 'th'; 2947 $th_or_td_right = empty( $args['title_right'] ) ? 'td' : 'th'; 2948 2949 $r .= "<tr class='diff-sub-title'>\n"; 2950 $r .= "\t<$th_or_td_left>$args[title_left]</$th_or_td_left>\n"; 2951 if ( $is_split_view ) { 2952 $r .= "\t<$th_or_td_right>$args[title_right]</$th_or_td_right>\n"; 2953 } 2954 $r .= "</tr>\n"; 2955 } 2956 2957 if ( $args['title_left'] || $args['title_right'] ) { 2958 $r .= "</thead>\n"; 2959 } 2960 2961 $r .= "<tbody>\n$diff\n</tbody>\n"; 2962 $r .= '</table>'; 2963 2964 return $r; 2965 } 2966 endif;
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