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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 $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 * 95 * @param string $field The field to retrieve the user with. id | ID | slug | email | login. 96 * @param int|string $value A value for $field. A user ID, slug, email address, or login name. 97 * @return WP_User|false WP_User object on success, false on failure. 98 */ 99 function get_user_by( $field, $value ) { 100 $userdata = WP_User::get_data_by( $field, $value ); 101 102 if ( ! $userdata ) { 103 return false; 104 } 105 106 $user = new WP_User; 107 $user->init( $userdata ); 108 109 return $user; 110 } 111 endif; 112 113 if ( ! function_exists( 'cache_users' ) ) : 114 /** 115 * Retrieve info for user lists to prevent multiple queries by get_userdata() 116 * 117 * @since 3.0.0 118 * 119 * @global wpdb $wpdb WordPress database abstraction object. 120 * 121 * @param array $user_ids User ID numbers list 122 */ 123 function cache_users( $user_ids ) { 124 global $wpdb; 125 126 $clean = _get_non_cached_ids( $user_ids, 'users' ); 127 128 if ( empty( $clean ) ) { 129 return; 130 } 131 132 $list = implode( ',', $clean ); 133 134 $users = $wpdb->get_results( "SELECT * FROM $wpdb->users WHERE ID IN ($list)" ); 135 136 $ids = array(); 137 foreach ( $users as $user ) { 138 update_user_caches( $user ); 139 $ids[] = $user->ID; 140 } 141 update_meta_cache( 'user', $ids ); 142 } 143 endif; 144 145 if ( ! function_exists( 'wp_mail' ) ) : 146 /** 147 * Sends an email, similar to PHP's mail function. 148 * 149 * A true return value does not automatically mean that the user received the 150 * email successfully. It just only means that the method used was able to 151 * process the request without any errors. 152 * 153 * The default content type is `text/plain` which does not allow using HTML. 154 * However, you can set the content type of the email by using the 155 * {@see 'wp_mail_content_type'} filter. 156 * 157 * The default charset is based on the charset used on the blog. The charset can 158 * be set using the {@see 'wp_mail_charset'} filter. 159 * 160 * @since 1.2.1 161 * 162 * @global PHPMailer\PHPMailer\PHPMailer $phpmailer 163 * 164 * @param string|array $to Array or comma-separated list of email addresses to send message. 165 * @param string $subject Email subject 166 * @param string $message Message contents 167 * @param string|array $headers Optional. Additional headers. 168 * @param string|array $attachments Optional. Files to attach. 169 * @return bool Whether the email contents were sent successfully. 170 */ 171 function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() ) { 172 // Compact the input, apply the filters, and extract them back out. 173 174 /** 175 * Filters the wp_mail() arguments. 176 * 177 * @since 2.2.0 178 * 179 * @param array $args A compacted array of wp_mail() arguments, including the "to" email, 180 * subject, message, headers, and attachments values. 181 */ 182 $atts = apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) ); 183 184 if ( isset( $atts['to'] ) ) { 185 $to = $atts['to']; 186 } 187 188 if ( ! is_array( $to ) ) { 189 $to = explode( ',', $to ); 190 } 191 192 if ( isset( $atts['subject'] ) ) { 193 $subject = $atts['subject']; 194 } 195 196 if ( isset( $atts['message'] ) ) { 197 $message = $atts['message']; 198 } 199 200 if ( isset( $atts['headers'] ) ) { 201 $headers = $atts['headers']; 202 } 203 204 if ( isset( $atts['attachments'] ) ) { 205 $attachments = $atts['attachments']; 206 } 207 208 if ( ! is_array( $attachments ) ) { 209 $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) ); 210 } 211 global $phpmailer; 212 213 // (Re)create it, if it's gone missing. 214 if ( ! ( $phpmailer instanceof PHPMailer\PHPMailer\PHPMailer ) ) { 215 require_once ABSPATH . WPINC . '/PHPMailer/PHPMailer.php'; 216 require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php'; 217 require_once ABSPATH . WPINC . '/PHPMailer/Exception.php'; 218 $phpmailer = new PHPMailer\PHPMailer\PHPMailer( true ); 219 220 $phpmailer::$validator = static function ( $email ) { 221 return (bool) is_email( $email ); 222 }; 223 } 224 225 // Headers. 226 $cc = array(); 227 $bcc = array(); 228 $reply_to = array(); 229 230 if ( empty( $headers ) ) { 231 $headers = array(); 232 } else { 233 if ( ! is_array( $headers ) ) { 234 // Explode the headers out, so this function can take 235 // both string headers and an array of headers. 236 $tempheaders = explode( "\n", str_replace( "\r\n", "\n", $headers ) ); 237 } else { 238 $tempheaders = $headers; 239 } 240 $headers = array(); 241 242 // If it's actually got contents. 243 if ( ! empty( $tempheaders ) ) { 244 // Iterate through the raw headers. 245 foreach ( (array) $tempheaders as $header ) { 246 if ( strpos( $header, ':' ) === false ) { 247 if ( false !== stripos( $header, 'boundary=' ) ) { 248 $parts = preg_split( '/boundary=/i', trim( $header ) ); 249 $boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) ); 250 } 251 continue; 252 } 253 // Explode them out. 254 list( $name, $content ) = explode( ':', trim( $header ), 2 ); 255 256 // Cleanup crew. 257 $name = trim( $name ); 258 $content = trim( $content ); 259 260 switch ( strtolower( $name ) ) { 261 // Mainly for legacy -- process a "From:" header if it's there. 262 case 'from': 263 $bracket_pos = strpos( $content, '<' ); 264 if ( false !== $bracket_pos ) { 265 // Text before the bracketed email is the "From" name. 266 if ( $bracket_pos > 0 ) { 267 $from_name = substr( $content, 0, $bracket_pos - 1 ); 268 $from_name = str_replace( '"', '', $from_name ); 269 $from_name = trim( $from_name ); 270 } 271 272 $from_email = substr( $content, $bracket_pos + 1 ); 273 $from_email = str_replace( '>', '', $from_email ); 274 $from_email = trim( $from_email ); 275 276 // Avoid setting an empty $from_email. 277 } elseif ( '' !== trim( $content ) ) { 278 $from_email = trim( $content ); 279 } 280 break; 281 case 'content-type': 282 if ( strpos( $content, ';' ) !== false ) { 283 list( $type, $charset_content ) = explode( ';', $content ); 284 $content_type = trim( $type ); 285 if ( false !== stripos( $charset_content, 'charset=' ) ) { 286 $charset = trim( str_replace( array( 'charset=', '"' ), '', $charset_content ) ); 287 } elseif ( false !== stripos( $charset_content, 'boundary=' ) ) { 288 $boundary = trim( str_replace( array( 'BOUNDARY=', 'boundary=', '"' ), '', $charset_content ) ); 289 $charset = ''; 290 } 291 292 // Avoid setting an empty $content_type. 293 } elseif ( '' !== trim( $content ) ) { 294 $content_type = trim( $content ); 295 } 296 break; 297 case 'cc': 298 $cc = array_merge( (array) $cc, explode( ',', $content ) ); 299 break; 300 case 'bcc': 301 $bcc = array_merge( (array) $bcc, explode( ',', $content ) ); 302 break; 303 case 'reply-to': 304 $reply_to = array_merge( (array) $reply_to, explode( ',', $content ) ); 305 break; 306 default: 307 // Add it to our grand headers array. 308 $headers[ trim( $name ) ] = trim( $content ); 309 break; 310 } 311 } 312 } 313 } 314 315 // Empty out the values that may be set. 316 $phpmailer->clearAllRecipients(); 317 $phpmailer->clearAttachments(); 318 $phpmailer->clearCustomHeaders(); 319 $phpmailer->clearReplyTos(); 320 321 // Set "From" name and email. 322 323 // If we don't have a name from the input headers. 324 if ( ! isset( $from_name ) ) { 325 $from_name = 'WordPress'; 326 } 327 328 /* 329 * If we don't have an email from the input headers, default to wordpress@$sitename 330 * Some hosts will block outgoing mail from this address if it doesn't exist, 331 * but there's no easy alternative. Defaulting to admin_email might appear to be 332 * another option, but some hosts may refuse to relay mail from an unknown domain. 333 * See https://core.trac.wordpress.org/ticket/5007. 334 */ 335 if ( ! isset( $from_email ) ) { 336 // Get the site domain and get rid of www. 337 $sitename = wp_parse_url( network_home_url(), PHP_URL_HOST ); 338 if ( 'www.' === substr( $sitename, 0, 4 ) ) { 339 $sitename = substr( $sitename, 4 ); 340 } 341 342 $from_email = 'wordpress@' . $sitename; 343 } 344 345 /** 346 * Filters the email address to send from. 347 * 348 * @since 2.2.0 349 * 350 * @param string $from_email Email address to send from. 351 */ 352 $from_email = apply_filters( 'wp_mail_from', $from_email ); 353 354 /** 355 * Filters the name to associate with the "from" email address. 356 * 357 * @since 2.3.0 358 * 359 * @param string $from_name Name associated with the "from" email address. 360 */ 361 $from_name = apply_filters( 'wp_mail_from_name', $from_name ); 362 363 try { 364 $phpmailer->setFrom( $from_email, $from_name, false ); 365 } catch ( PHPMailer\PHPMailer\Exception $e ) { 366 $mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' ); 367 $mail_error_data['phpmailer_exception_code'] = $e->getCode(); 368 369 /** This filter is documented in wp-includes/pluggable.php */ 370 do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) ); 371 372 return false; 373 } 374 375 // Set mail's subject and body. 376 $phpmailer->Subject = $subject; 377 $phpmailer->Body = $message; 378 379 // Set destination addresses, using appropriate methods for handling addresses. 380 $address_headers = compact( 'to', 'cc', 'bcc', 'reply_to' ); 381 382 foreach ( $address_headers as $address_header => $addresses ) { 383 if ( empty( $addresses ) ) { 384 continue; 385 } 386 387 foreach ( (array) $addresses as $address ) { 388 try { 389 // Break $recipient into name and address parts if in the format "Foo <bar@baz.com>". 390 $recipient_name = ''; 391 392 if ( preg_match( '/(.*)<(.+)>/', $address, $matches ) ) { 393 if ( count( $matches ) == 3 ) { 394 $recipient_name = $matches[1]; 395 $address = $matches[2]; 396 } 397 } 398 399 switch ( $address_header ) { 400 case 'to': 401 $phpmailer->addAddress( $address, $recipient_name ); 402 break; 403 case 'cc': 404 $phpmailer->addCc( $address, $recipient_name ); 405 break; 406 case 'bcc': 407 $phpmailer->addBcc( $address, $recipient_name ); 408 break; 409 case 'reply_to': 410 $phpmailer->addReplyTo( $address, $recipient_name ); 411 break; 412 } 413 } catch ( PHPMailer\PHPMailer\Exception $e ) { 414 continue; 415 } 416 } 417 } 418 419 // Set to use PHP's mail(). 420 $phpmailer->isMail(); 421 422 // Set Content-Type and charset. 423 424 // If we don't have a content-type from the input headers. 425 if ( ! isset( $content_type ) ) { 426 $content_type = 'text/plain'; 427 } 428 429 /** 430 * Filters the wp_mail() content type. 431 * 432 * @since 2.3.0 433 * 434 * @param string $content_type Default wp_mail() content type. 435 */ 436 $content_type = apply_filters( 'wp_mail_content_type', $content_type ); 437 438 $phpmailer->ContentType = $content_type; 439 440 // Set whether it's plaintext, depending on $content_type. 441 if ( 'text/html' === $content_type ) { 442 $phpmailer->isHTML( true ); 443 } 444 445 // If we don't have a charset from the input headers. 446 if ( ! isset( $charset ) ) { 447 $charset = get_bloginfo( 'charset' ); 448 } 449 450 /** 451 * Filters the default wp_mail() charset. 452 * 453 * @since 2.3.0 454 * 455 * @param string $charset Default email charset. 456 */ 457 $phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset ); 458 459 // Set custom headers. 460 if ( ! empty( $headers ) ) { 461 foreach ( (array) $headers as $name => $content ) { 462 // Only add custom headers not added automatically by PHPMailer. 463 if ( ! in_array( $name, array( 'MIME-Version', 'X-Mailer' ), true ) ) { 464 try { 465 $phpmailer->addCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) ); 466 } catch ( PHPMailer\PHPMailer\Exception $e ) { 467 continue; 468 } 469 } 470 } 471 472 if ( false !== stripos( $content_type, 'multipart' ) && ! empty( $boundary ) ) { 473 $phpmailer->addCustomHeader( sprintf( 'Content-Type: %s; boundary="%s"', $content_type, $boundary ) ); 474 } 475 } 476 477 if ( ! empty( $attachments ) ) { 478 foreach ( $attachments as $attachment ) { 479 try { 480 $phpmailer->addAttachment( $attachment ); 481 } catch ( PHPMailer\PHPMailer\Exception $e ) { 482 continue; 483 } 484 } 485 } 486 487 /** 488 * Fires after PHPMailer is initialized. 489 * 490 * @since 2.2.0 491 * 492 * @param PHPMailer $phpmailer The PHPMailer instance (passed by reference). 493 */ 494 do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); 495 496 // Send! 497 try { 498 return $phpmailer->send(); 499 } catch ( PHPMailer\PHPMailer\Exception $e ) { 500 501 $mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' ); 502 $mail_error_data['phpmailer_exception_code'] = $e->getCode(); 503 504 /** 505 * Fires after a PHPMailer\PHPMailer\Exception is caught. 506 * 507 * @since 4.4.0 508 * 509 * @param WP_Error $error A WP_Error object with the PHPMailer\PHPMailer\Exception message, and an array 510 * containing the mail recipient, subject, message, headers, and attachments. 511 */ 512 do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) ); 513 514 return false; 515 } 516 } 517 endif; 518 519 if ( ! function_exists( 'wp_authenticate' ) ) : 520 /** 521 * Authenticate a user, confirming the login credentials are valid. 522 * 523 * @since 2.5.0 524 * @since 4.5.0 `$username` now accepts an email address. 525 * 526 * @param string $username User's username or email address. 527 * @param string $password User's password. 528 * @return WP_User|WP_Error WP_User object if the credentials are valid, 529 * otherwise WP_Error. 530 */ 531 function wp_authenticate( $username, $password ) { 532 $username = sanitize_user( $username ); 533 $password = trim( $password ); 534 535 /** 536 * Filters whether a set of user login credentials are valid. 537 * 538 * A WP_User object is returned if the credentials authenticate a user. 539 * WP_Error or null otherwise. 540 * 541 * @since 2.8.0 542 * @since 4.5.0 `$username` now accepts an email address. 543 * 544 * @param null|WP_User|WP_Error $user WP_User if the user is authenticated. 545 * WP_Error or null otherwise. 546 * @param string $username Username or email address. 547 * @param string $password User password 548 */ 549 $user = apply_filters( 'authenticate', null, $username, $password ); 550 551 if ( null == $user ) { 552 // TODO: What should the error message be? (Or would these even happen?) 553 // Only needed if all authentication handlers fail to return anything. 554 $user = new WP_Error( 'authentication_failed', __( '<strong>Error</strong>: Invalid username, email address or incorrect password.' ) ); 555 } 556 557 $ignore_codes = array( 'empty_username', 'empty_password' ); 558 559 if ( is_wp_error( $user ) && ! in_array( $user->get_error_code(), $ignore_codes, true ) ) { 560 $error = $user; 561 562 /** 563 * Fires after a user login has failed. 564 * 565 * @since 2.5.0 566 * @since 4.5.0 The value of `$username` can now be an email address. 567 * @since 5.4.0 The `$error` parameter was added. 568 * 569 * @param string $username Username or email address. 570 * @param WP_Error $error A WP_Error object with the authentication failure details. 571 */ 572 do_action( 'wp_login_failed', $username, $error ); 573 } 574 575 return $user; 576 } 577 endif; 578 579 if ( ! function_exists( 'wp_logout' ) ) : 580 /** 581 * Log the current user out. 582 * 583 * @since 2.5.0 584 */ 585 function wp_logout() { 586 $user_id = get_current_user_id(); 587 588 wp_destroy_current_session(); 589 wp_clear_auth_cookie(); 590 wp_set_current_user( 0 ); 591 592 /** 593 * Fires after a user is logged out. 594 * 595 * @since 1.5.0 596 * @since 5.5.0 Added the `$user_id` parameter. 597 * 598 * @param int $user_id ID of the user that was logged out. 599 */ 600 do_action( 'wp_logout', $user_id ); 601 } 602 endif; 603 604 if ( ! function_exists( 'wp_validate_auth_cookie' ) ) : 605 /** 606 * Validates authentication cookie. 607 * 608 * The checks include making sure that the authentication cookie is set and 609 * pulling in the contents (if $cookie is not used). 610 * 611 * Makes sure the cookie is not expired. Verifies the hash in cookie is what is 612 * should be and compares the two. 613 * 614 * @since 2.5.0 615 * 616 * @global int $login_grace_period 617 * 618 * @param string $cookie Optional. If used, will validate contents instead of cookie's. 619 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 620 * @return int|false User ID if valid cookie, false if invalid. 621 */ 622 function wp_validate_auth_cookie( $cookie = '', $scheme = '' ) { 623 $cookie_elements = wp_parse_auth_cookie( $cookie, $scheme ); 624 if ( ! $cookie_elements ) { 625 /** 626 * Fires if an authentication cookie is malformed. 627 * 628 * @since 2.7.0 629 * 630 * @param string $cookie Malformed auth cookie. 631 * @param string $scheme Authentication scheme. Values include 'auth', 'secure_auth', 632 * or 'logged_in'. 633 */ 634 do_action( 'auth_cookie_malformed', $cookie, $scheme ); 635 return false; 636 } 637 638 $scheme = $cookie_elements['scheme']; 639 $username = $cookie_elements['username']; 640 $hmac = $cookie_elements['hmac']; 641 $token = $cookie_elements['token']; 642 $expired = $cookie_elements['expiration']; 643 $expiration = $cookie_elements['expiration']; 644 645 // Allow a grace period for POST and Ajax requests. 646 if ( wp_doing_ajax() || 'POST' === $_SERVER['REQUEST_METHOD'] ) { 647 $expired += HOUR_IN_SECONDS; 648 } 649 650 // Quick check to see if an honest cookie has expired. 651 if ( $expired < time() ) { 652 /** 653 * Fires once an authentication cookie has expired. 654 * 655 * @since 2.7.0 656 * 657 * @param string[] $cookie_elements An array of data for the authentication cookie. 658 */ 659 do_action( 'auth_cookie_expired', $cookie_elements ); 660 return false; 661 } 662 663 $user = get_user_by( 'login', $username ); 664 if ( ! $user ) { 665 /** 666 * Fires if a bad username is entered in the user authentication process. 667 * 668 * @since 2.7.0 669 * 670 * @param string[] $cookie_elements An array of data for the authentication cookie. 671 */ 672 do_action( 'auth_cookie_bad_username', $cookie_elements ); 673 return false; 674 } 675 676 $pass_frag = substr( $user->user_pass, 8, 4 ); 677 678 $key = wp_hash( $username . '|' . $pass_frag . '|' . $expiration . '|' . $token, $scheme ); 679 680 // If ext/hash is not present, compat.php's hash_hmac() does not support sha256. 681 $algo = function_exists( 'hash' ) ? 'sha256' : 'sha1'; 682 $hash = hash_hmac( $algo, $username . '|' . $expiration . '|' . $token, $key ); 683 684 if ( ! hash_equals( $hash, $hmac ) ) { 685 /** 686 * Fires if a bad authentication cookie hash is encountered. 687 * 688 * @since 2.7.0 689 * 690 * @param string[] $cookie_elements An array of data for the authentication cookie. 691 */ 692 do_action( 'auth_cookie_bad_hash', $cookie_elements ); 693 return false; 694 } 695 696 $manager = WP_Session_Tokens::get_instance( $user->ID ); 697 if ( ! $manager->verify( $token ) ) { 698 /** 699 * Fires if a bad session token is encountered. 700 * 701 * @since 4.0.0 702 * 703 * @param string[] $cookie_elements An array of data for the authentication cookie. 704 */ 705 do_action( 'auth_cookie_bad_session_token', $cookie_elements ); 706 return false; 707 } 708 709 // Ajax/POST grace period set above. 710 if ( $expiration < time() ) { 711 $GLOBALS['login_grace_period'] = 1; 712 } 713 714 /** 715 * Fires once an authentication cookie has been validated. 716 * 717 * @since 2.7.0 718 * 719 * @param string[] $cookie_elements An array of data for the authentication cookie. 720 * @param WP_User $user User object. 721 */ 722 do_action( 'auth_cookie_valid', $cookie_elements, $user ); 723 724 return $user->ID; 725 } 726 endif; 727 728 if ( ! function_exists( 'wp_generate_auth_cookie' ) ) : 729 /** 730 * Generates authentication cookie contents. 731 * 732 * @since 2.5.0 733 * @since 4.0.0 The `$token` parameter was added. 734 * 735 * @param int $user_id User ID. 736 * @param int $expiration The time the cookie expires as a UNIX timestamp. 737 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 738 * Default 'auth'. 739 * @param string $token User's session token to use for this cookie. 740 * @return string Authentication cookie contents. Empty string if user does not exist. 741 */ 742 function wp_generate_auth_cookie( $user_id, $expiration, $scheme = 'auth', $token = '' ) { 743 $user = get_userdata( $user_id ); 744 if ( ! $user ) { 745 return ''; 746 } 747 748 if ( ! $token ) { 749 $manager = WP_Session_Tokens::get_instance( $user_id ); 750 $token = $manager->create( $expiration ); 751 } 752 753 $pass_frag = substr( $user->user_pass, 8, 4 ); 754 755 $key = wp_hash( $user->user_login . '|' . $pass_frag . '|' . $expiration . '|' . $token, $scheme ); 756 757 // If ext/hash is not present, compat.php's hash_hmac() does not support sha256. 758 $algo = function_exists( 'hash' ) ? 'sha256' : 'sha1'; 759 $hash = hash_hmac( $algo, $user->user_login . '|' . $expiration . '|' . $token, $key ); 760 761 $cookie = $user->user_login . '|' . $expiration . '|' . $token . '|' . $hash; 762 763 /** 764 * Filters the authentication cookie. 765 * 766 * @since 2.5.0 767 * @since 4.0.0 The `$token` parameter was added. 768 * 769 * @param string $cookie Authentication cookie. 770 * @param int $user_id User ID. 771 * @param int $expiration The time the cookie expires as a UNIX timestamp. 772 * @param string $scheme Cookie scheme used. Accepts 'auth', 'secure_auth', or 'logged_in'. 773 * @param string $token User's session token used. 774 */ 775 return apply_filters( 'auth_cookie', $cookie, $user_id, $expiration, $scheme, $token ); 776 } 777 endif; 778 779 if ( ! function_exists( 'wp_parse_auth_cookie' ) ) : 780 /** 781 * Parses a cookie into its components. 782 * 783 * @since 2.7.0 784 * 785 * @param string $cookie Authentication cookie. 786 * @param string $scheme Optional. The cookie scheme to use: 'auth', 'secure_auth', or 'logged_in'. 787 * @return string[]|false Authentication cookie components. 788 */ 789 function wp_parse_auth_cookie( $cookie = '', $scheme = '' ) { 790 if ( empty( $cookie ) ) { 791 switch ( $scheme ) { 792 case 'auth': 793 $cookie_name = AUTH_COOKIE; 794 break; 795 case 'secure_auth': 796 $cookie_name = SECURE_AUTH_COOKIE; 797 break; 798 case 'logged_in': 799 $cookie_name = LOGGED_IN_COOKIE; 800 break; 801 default: 802 if ( is_ssl() ) { 803 $cookie_name = SECURE_AUTH_COOKIE; 804 $scheme = 'secure_auth'; 805 } else { 806 $cookie_name = AUTH_COOKIE; 807 $scheme = 'auth'; 808 } 809 } 810 811 if ( empty( $_COOKIE[ $cookie_name ] ) ) { 812 return false; 813 } 814 $cookie = $_COOKIE[ $cookie_name ]; 815 } 816 817 $cookie_elements = explode( '|', $cookie ); 818 if ( count( $cookie_elements ) !== 4 ) { 819 return false; 820 } 821 822 list( $username, $expiration, $token, $hmac ) = $cookie_elements; 823 824 return compact( 'username', 'expiration', 'token', 'hmac', 'scheme' ); 825 } 826 endif; 827 828 if ( ! function_exists( 'wp_set_auth_cookie' ) ) : 829 /** 830 * Sets the authentication cookies based on user ID. 831 * 832 * The $remember parameter increases the time that the cookie will be kept. The 833 * default the cookie is kept without remembering is two days. When $remember is 834 * set, the cookies will be kept for 14 days or two weeks. 835 * 836 * @since 2.5.0 837 * @since 4.3.0 Added the `$token` parameter. 838 * 839 * @param int $user_id User ID. 840 * @param bool $remember Whether to remember the user. 841 * @param bool|string $secure Whether the auth cookie should only be sent over HTTPS. Default is an empty 842 * string which means the value of `is_ssl()` will be used. 843 * @param string $token Optional. User's session token to use for this cookie. 844 */ 845 function wp_set_auth_cookie( $user_id, $remember = false, $secure = '', $token = '' ) { 846 if ( $remember ) { 847 /** 848 * Filters the duration of the authentication cookie expiration period. 849 * 850 * @since 2.8.0 851 * 852 * @param int $length Duration of the expiration period in seconds. 853 * @param int $user_id User ID. 854 * @param bool $remember Whether to remember the user login. Default false. 855 */ 856 $expiration = time() + apply_filters( 'auth_cookie_expiration', 14 * DAY_IN_SECONDS, $user_id, $remember ); 857 858 /* 859 * Ensure the browser will continue to send the cookie after the expiration time is reached. 860 * Needed for the login grace period in wp_validate_auth_cookie(). 861 */ 862 $expire = $expiration + ( 12 * HOUR_IN_SECONDS ); 863 } else { 864 /** This filter is documented in wp-includes/pluggable.php */ 865 $expiration = time() + apply_filters( 'auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, $remember ); 866 $expire = 0; 867 } 868 869 if ( '' === $secure ) { 870 $secure = is_ssl(); 871 } 872 873 // Front-end cookie is secure when the auth cookie is secure and the site's home URL uses HTTPS. 874 $secure_logged_in_cookie = $secure && 'https' === parse_url( get_option( 'home' ), PHP_URL_SCHEME ); 875 876 /** 877 * Filters whether the auth cookie should only be sent over HTTPS. 878 * 879 * @since 3.1.0 880 * 881 * @param bool $secure Whether the cookie should only be sent over HTTPS. 882 * @param int $user_id User ID. 883 */ 884 $secure = apply_filters( 'secure_auth_cookie', $secure, $user_id ); 885 886 /** 887 * Filters whether the logged in cookie should only be sent over HTTPS. 888 * 889 * @since 3.1.0 890 * 891 * @param bool $secure_logged_in_cookie Whether the logged in cookie should only be sent over HTTPS. 892 * @param int $user_id User ID. 893 * @param bool $secure Whether the auth cookie should only be sent over HTTPS. 894 */ 895 $secure_logged_in_cookie = apply_filters( 'secure_logged_in_cookie', $secure_logged_in_cookie, $user_id, $secure ); 896 897 if ( $secure ) { 898 $auth_cookie_name = SECURE_AUTH_COOKIE; 899 $scheme = 'secure_auth'; 900 } else { 901 $auth_cookie_name = AUTH_COOKIE; 902 $scheme = 'auth'; 903 } 904 905 if ( '' === $token ) { 906 $manager = WP_Session_Tokens::get_instance( $user_id ); 907 $token = $manager->create( $expiration ); 908 } 909 910 $auth_cookie = wp_generate_auth_cookie( $user_id, $expiration, $scheme, $token ); 911 $logged_in_cookie = wp_generate_auth_cookie( $user_id, $expiration, 'logged_in', $token ); 912 913 /** 914 * Fires immediately before the authentication cookie is set. 915 * 916 * @since 2.5.0 917 * @since 4.9.0 The `$token` parameter was added. 918 * 919 * @param string $auth_cookie Authentication cookie value. 920 * @param int $expire The time the login grace period expires as a UNIX timestamp. 921 * Default is 12 hours past the cookie's expiration time. 922 * @param int $expiration The time when the authentication cookie expires as a UNIX timestamp. 923 * Default is 14 days from now. 924 * @param int $user_id User ID. 925 * @param string $scheme Authentication scheme. Values include 'auth' or 'secure_auth'. 926 * @param string $token User's session token to use for this cookie. 927 */ 928 do_action( 'set_auth_cookie', $auth_cookie, $expire, $expiration, $user_id, $scheme, $token ); 929 930 /** 931 * Fires immediately before the logged-in authentication cookie is set. 932 * 933 * @since 2.6.0 934 * @since 4.9.0 The `$token` parameter was added. 935 * 936 * @param string $logged_in_cookie The logged-in cookie value. 937 * @param int $expire The time the login grace period expires as a UNIX timestamp. 938 * Default is 12 hours past the cookie's expiration time. 939 * @param int $expiration The time when the logged-in authentication cookie expires as a UNIX timestamp. 940 * Default is 14 days from now. 941 * @param int $user_id User ID. 942 * @param string $scheme Authentication scheme. Default 'logged_in'. 943 * @param string $token User's session token to use for this cookie. 944 */ 945 do_action( 'set_logged_in_cookie', $logged_in_cookie, $expire, $expiration, $user_id, 'logged_in', $token ); 946 947 /** 948 * Allows preventing auth cookies from actually being sent to the client. 949 * 950 * @since 4.7.4 951 * 952 * @param bool $send Whether to send auth cookies to the client. 953 */ 954 if ( ! apply_filters( 'send_auth_cookies', true ) ) { 955 return; 956 } 957 958 setcookie( $auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN, $secure, true ); 959 setcookie( $auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, $secure, true ); 960 setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true ); 961 if ( COOKIEPATH != SITECOOKIEPATH ) { 962 setcookie( LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true ); 963 } 964 } 965 endif; 966 967 if ( ! function_exists( 'wp_clear_auth_cookie' ) ) : 968 /** 969 * Removes all of the cookies associated with authentication. 970 * 971 * @since 2.5.0 972 */ 973 function wp_clear_auth_cookie() { 974 /** 975 * Fires just before the authentication cookies are cleared. 976 * 977 * @since 2.7.0 978 */ 979 do_action( 'clear_auth_cookie' ); 980 981 /** This filter is documented in wp-includes/pluggable.php */ 982 if ( ! apply_filters( 'send_auth_cookies', true ) ) { 983 return; 984 } 985 986 // Auth cookies. 987 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); 988 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); 989 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); 990 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); 991 setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 992 setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 993 994 // Settings cookies. 995 setcookie( 'wp-settings-' . get_current_user_id(), ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); 996 setcookie( 'wp-settings-time-' . get_current_user_id(), ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); 997 998 // Old cookies. 999 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1000 setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1001 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1002 setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1003 1004 // Even older cookies. 1005 setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1006 setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1007 setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1008 setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); 1009 1010 // Post password cookie. 1011 setcookie( 'wp-postpass_' . COOKIEHASH, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); 1012 } 1013 endif; 1014 1015 if ( ! function_exists( 'is_user_logged_in' ) ) : 1016 /** 1017 * Determines whether the current visitor is a logged in user. 1018 * 1019 * For more information on this and similar theme functions, check out 1020 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 1021 * Conditional Tags} article in the Theme Developer Handbook. 1022 * 1023 * @since 2.0.0 1024 * 1025 * @return bool True if user is logged in, false if not logged in. 1026 */ 1027 function is_user_logged_in() { 1028 $user = wp_get_current_user(); 1029 1030 return $user->exists(); 1031 } 1032 endif; 1033 1034 if ( ! function_exists( 'auth_redirect' ) ) : 1035 /** 1036 * Checks if a user is logged in, if not it redirects them to the login page. 1037 * 1038 * When this code is called from a page, it checks to see if the user viewing the page is logged in. 1039 * If the user is not logged in, they are redirected to the login page. The user is redirected 1040 * in such a way that, upon logging in, they will be sent directly to the page they were originally 1041 * trying to access. 1042 * 1043 * @since 1.5.0 1044 */ 1045 function auth_redirect() { 1046 $secure = ( is_ssl() || force_ssl_admin() ); 1047 1048 /** 1049 * Filters whether to use a secure authentication redirect. 1050 * 1051 * @since 3.1.0 1052 * 1053 * @param bool $secure Whether to use a secure authentication redirect. Default false. 1054 */ 1055 $secure = apply_filters( 'secure_auth_redirect', $secure ); 1056 1057 // If https is required and request is http, redirect. 1058 if ( $secure && ! is_ssl() && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) { 1059 if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 1060 wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 1061 exit; 1062 } else { 1063 wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1064 exit; 1065 } 1066 } 1067 1068 /** 1069 * Filters the authentication redirect scheme. 1070 * 1071 * @since 2.9.0 1072 * 1073 * @param string $scheme Authentication redirect scheme. Default empty. 1074 */ 1075 $scheme = apply_filters( 'auth_redirect_scheme', '' ); 1076 1077 $user_id = wp_validate_auth_cookie( '', $scheme ); 1078 if ( $user_id ) { 1079 /** 1080 * Fires before the authentication redirect. 1081 * 1082 * @since 2.8.0 1083 * 1084 * @param int $user_id User ID. 1085 */ 1086 do_action( 'auth_redirect', $user_id ); 1087 1088 // If the user wants ssl but the session is not ssl, redirect. 1089 if ( ! $secure && get_user_option( 'use_ssl', $user_id ) && false !== strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) ) { 1090 if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { 1091 wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); 1092 exit; 1093 } else { 1094 wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1095 exit; 1096 } 1097 } 1098 1099 return; // The cookie is good, so we're done. 1100 } 1101 1102 // The cookie is no good, so force login. 1103 nocache_headers(); 1104 1105 $redirect = ( strpos( $_SERVER['REQUEST_URI'], '/options.php' ) && wp_get_referer() ) ? wp_get_referer() : set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); 1106 1107 $login_url = wp_login_url( $redirect, true ); 1108 1109 wp_redirect( $login_url ); 1110 exit; 1111 } 1112 endif; 1113 1114 if ( ! function_exists( 'check_admin_referer' ) ) : 1115 /** 1116 * Ensures intent by verifying that a user was referred from another admin page with the correct security nonce. 1117 * 1118 * This function ensures the user intends to perform a given action, which helps protect against clickjacking style 1119 * attacks. It verifies intent, not authorisation, therefore it does not verify the user's capabilities. This should 1120 * be performed with `current_user_can()` or similar. 1121 * 1122 * If the nonce value is invalid, the function will exit with an "Are You Sure?" style message. 1123 * 1124 * @since 1.2.0 1125 * @since 2.5.0 The `$query_arg` parameter was added. 1126 * 1127 * @param int|string $action The nonce action. 1128 * @param string $query_arg Optional. Key to check for nonce in `$_REQUEST`. Default '_wpnonce'. 1129 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 1130 * 2 if the nonce is valid and generated between 12-24 hours ago. 1131 * False if the nonce is invalid. 1132 */ 1133 function check_admin_referer( $action = -1, $query_arg = '_wpnonce' ) { 1134 if ( -1 === $action ) { 1135 _doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2.0' ); 1136 } 1137 1138 $adminurl = strtolower( admin_url() ); 1139 $referer = strtolower( wp_get_referer() ); 1140 $result = isset( $_REQUEST[ $query_arg ] ) ? wp_verify_nonce( $_REQUEST[ $query_arg ], $action ) : false; 1141 1142 /** 1143 * Fires once the admin request has been validated or not. 1144 * 1145 * @since 1.5.1 1146 * 1147 * @param string $action The nonce action. 1148 * @param false|int $result False if the nonce is invalid, 1 if the nonce is valid and generated between 1149 * 0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago. 1150 */ 1151 do_action( 'check_admin_referer', $action, $result ); 1152 1153 if ( ! $result && ! ( -1 === $action && strpos( $referer, $adminurl ) === 0 ) ) { 1154 wp_nonce_ays( $action ); 1155 die(); 1156 } 1157 1158 return $result; 1159 } 1160 endif; 1161 1162 if ( ! function_exists( 'check_ajax_referer' ) ) : 1163 /** 1164 * Verifies the Ajax request to prevent processing requests external of the blog. 1165 * 1166 * @since 2.0.3 1167 * 1168 * @param int|string $action Action nonce. 1169 * @param false|string $query_arg Optional. Key to check for the nonce in `$_REQUEST` (since 2.5). If false, 1170 * `$_REQUEST` values will be evaluated for '_ajax_nonce', and '_wpnonce' 1171 * (in that order). Default false. 1172 * @param bool $die Optional. Whether to die early when the nonce cannot be verified. 1173 * Default true. 1174 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 1175 * 2 if the nonce is valid and generated between 12-24 hours ago. 1176 * False if the nonce is invalid. 1177 */ 1178 function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) { 1179 if ( -1 == $action ) { 1180 _doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '4.7' ); 1181 } 1182 1183 $nonce = ''; 1184 1185 if ( $query_arg && isset( $_REQUEST[ $query_arg ] ) ) { 1186 $nonce = $_REQUEST[ $query_arg ]; 1187 } elseif ( isset( $_REQUEST['_ajax_nonce'] ) ) { 1188 $nonce = $_REQUEST['_ajax_nonce']; 1189 } elseif ( isset( $_REQUEST['_wpnonce'] ) ) { 1190 $nonce = $_REQUEST['_wpnonce']; 1191 } 1192 1193 $result = wp_verify_nonce( $nonce, $action ); 1194 1195 /** 1196 * Fires once the Ajax request has been validated or not. 1197 * 1198 * @since 2.1.0 1199 * 1200 * @param string $action The Ajax nonce action. 1201 * @param false|int $result False if the nonce is invalid, 1 if the nonce is valid and generated between 1202 * 0-12 hours ago, 2 if the nonce is valid and generated between 12-24 hours ago. 1203 */ 1204 do_action( 'check_ajax_referer', $action, $result ); 1205 1206 if ( $die && false === $result ) { 1207 if ( wp_doing_ajax() ) { 1208 wp_die( -1, 403 ); 1209 } else { 1210 die( '-1' ); 1211 } 1212 } 1213 1214 return $result; 1215 } 1216 endif; 1217 1218 if ( ! function_exists( 'wp_redirect' ) ) : 1219 /** 1220 * Redirects to another page. 1221 * 1222 * Note: wp_redirect() does not exit automatically, and should almost always be 1223 * followed by a call to `exit;`: 1224 * 1225 * wp_redirect( $url ); 1226 * exit; 1227 * 1228 * Exiting can also be selectively manipulated by using wp_redirect() as a conditional 1229 * in conjunction with the {@see 'wp_redirect'} and {@see 'wp_redirect_location'} filters: 1230 * 1231 * if ( wp_redirect( $url ) ) { 1232 * exit; 1233 * } 1234 * 1235 * @since 1.5.1 1236 * @since 5.1.0 The `$x_redirect_by` parameter was added. 1237 * @since 5.4.0 On invalid status codes, wp_die() is called. 1238 * 1239 * @global bool $is_IIS 1240 * 1241 * @param string $location The path or URL to redirect to. 1242 * @param int $status Optional. HTTP response status code to use. Default '302' (Moved Temporarily). 1243 * @param string $x_redirect_by Optional. The application doing the redirect. Default 'WordPress'. 1244 * @return bool False if the redirect was cancelled, true otherwise. 1245 */ 1246 function wp_redirect( $location, $status = 302, $x_redirect_by = 'WordPress' ) { 1247 global $is_IIS; 1248 1249 /** 1250 * Filters the redirect location. 1251 * 1252 * @since 2.1.0 1253 * 1254 * @param string $location The path or URL to redirect to. 1255 * @param int $status The HTTP response status code to use. 1256 */ 1257 $location = apply_filters( 'wp_redirect', $location, $status ); 1258 1259 /** 1260 * Filters the redirect HTTP response status code to use. 1261 * 1262 * @since 2.3.0 1263 * 1264 * @param int $status The HTTP response status code to use. 1265 * @param string $location The path or URL to redirect to. 1266 */ 1267 $status = apply_filters( 'wp_redirect_status', $status, $location ); 1268 1269 if ( ! $location ) { 1270 return false; 1271 } 1272 1273 if ( $status < 300 || 399 < $status ) { 1274 wp_die( __( 'HTTP redirect status code must be a redirection code, 3xx.' ) ); 1275 } 1276 1277 $location = wp_sanitize_redirect( $location ); 1278 1279 if ( ! $is_IIS && 'cgi-fcgi' !== PHP_SAPI ) { 1280 status_header( $status ); // This causes problems on IIS and some FastCGI setups. 1281 } 1282 1283 /** 1284 * Filters the X-Redirect-By header. 1285 * 1286 * Allows applications to identify themselves when they're doing a redirect. 1287 * 1288 * @since 5.1.0 1289 * 1290 * @param string $x_redirect_by The application doing the redirect. 1291 * @param int $status Status code to use. 1292 * @param string $location The path to redirect to. 1293 */ 1294 $x_redirect_by = apply_filters( 'x_redirect_by', $x_redirect_by, $status, $location ); 1295 if ( is_string( $x_redirect_by ) ) { 1296 header( "X-Redirect-By: $x_redirect_by" ); 1297 } 1298 1299 header( "Location: $location", true, $status ); 1300 1301 return true; 1302 } 1303 endif; 1304 1305 if ( ! function_exists( 'wp_sanitize_redirect' ) ) : 1306 /** 1307 * Sanitizes a URL for use in a redirect. 1308 * 1309 * @since 2.3.0 1310 * 1311 * @param string $location The path to redirect to. 1312 * @return string Redirect-sanitized URL. 1313 */ 1314 function wp_sanitize_redirect( $location ) { 1315 // Encode spaces. 1316 $location = str_replace( ' ', '%20', $location ); 1317 1318 $regex = '/ 1319 ( 1320 (?: [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx 1321 | \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2 1322 | [\xE1-\xEC][\x80-\xBF]{2} 1323 | \xED[\x80-\x9F][\x80-\xBF] 1324 | [\xEE-\xEF][\x80-\xBF]{2} 1325 | \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3 1326 | [\xF1-\xF3][\x80-\xBF]{3} 1327 | \xF4[\x80-\x8F][\x80-\xBF]{2} 1328 ){1,40} # ...one or more times 1329 )/x'; 1330 $location = preg_replace_callback( $regex, '_wp_sanitize_utf8_in_redirect', $location ); 1331 $location = preg_replace( '|[^a-z0-9-~+_.?#=&;,/:%!*\[\]()@]|i', '', $location ); 1332 $location = wp_kses_no_null( $location ); 1333 1334 // Remove %0D and %0A from location. 1335 $strip = array( '%0d', '%0a', '%0D', '%0A' ); 1336 return _deep_replace( $strip, $location ); 1337 } 1338 1339 /** 1340 * URL encode UTF-8 characters in a URL. 1341 * 1342 * @ignore 1343 * @since 4.2.0 1344 * @access private 1345 * 1346 * @see wp_sanitize_redirect() 1347 * 1348 * @param array $matches RegEx matches against the redirect location. 1349 * @return string URL-encoded version of the first RegEx match. 1350 */ 1351 function _wp_sanitize_utf8_in_redirect( $matches ) { 1352 return urlencode( $matches[0] ); 1353 } 1354 endif; 1355 1356 if ( ! function_exists( 'wp_safe_redirect' ) ) : 1357 /** 1358 * Performs a safe (local) redirect, using wp_redirect(). 1359 * 1360 * Checks whether the $location is using an allowed host, if it has an absolute 1361 * path. A plugin can therefore set or remove allowed host(s) to or from the 1362 * list. 1363 * 1364 * If the host is not allowed, then the redirect defaults to wp-admin on the siteurl 1365 * instead. This prevents malicious redirects which redirect to another host, 1366 * but only used in a few places. 1367 * 1368 * Note: wp_safe_redirect() does not exit automatically, and should almost always be 1369 * followed by a call to `exit;`: 1370 * 1371 * wp_safe_redirect( $url ); 1372 * exit; 1373 * 1374 * Exiting can also be selectively manipulated by using wp_safe_redirect() as a conditional 1375 * in conjunction with the {@see 'wp_redirect'} and {@see 'wp_redirect_location'} filters: 1376 * 1377 * if ( wp_safe_redirect( $url ) ) { 1378 * exit; 1379 * } 1380 * 1381 * @since 2.3.0 1382 * @since 5.1.0 The return value from wp_redirect() is now passed on, and the `$x_redirect_by` parameter was added. 1383 * 1384 * @param string $location The path or URL to redirect to. 1385 * @param int $status Optional. HTTP response status code to use. Default '302' (Moved Temporarily). 1386 * @param string $x_redirect_by Optional. The application doing the redirect. Default 'WordPress'. 1387 * @return bool False if the redirect was cancelled, true otherwise. 1388 */ 1389 function wp_safe_redirect( $location, $status = 302, $x_redirect_by = 'WordPress' ) { 1390 1391 // Need to look at the URL the way it will end up in wp_redirect(). 1392 $location = wp_sanitize_redirect( $location ); 1393 1394 /** 1395 * Filters the redirect fallback URL for when the provided redirect is not safe (local). 1396 * 1397 * @since 4.3.0 1398 * 1399 * @param string $fallback_url The fallback URL to use by default. 1400 * @param int $status The HTTP response status code to use. 1401 */ 1402 $location = wp_validate_redirect( $location, apply_filters( 'wp_safe_redirect_fallback', admin_url(), $status ) ); 1403 1404 return wp_redirect( $location, $status, $x_redirect_by ); 1405 } 1406 endif; 1407 1408 if ( ! function_exists( 'wp_validate_redirect' ) ) : 1409 /** 1410 * Validates a URL for use in a redirect. 1411 * 1412 * Checks whether the $location is using an allowed host, if it has an absolute 1413 * path. A plugin can therefore set or remove allowed host(s) to or from the 1414 * list. 1415 * 1416 * If the host is not allowed, then the redirect is to $default supplied 1417 * 1418 * @since 2.8.1 1419 * 1420 * @param string $location The redirect to validate 1421 * @param string $default The value to return if $location is not allowed 1422 * @return string redirect-sanitized URL 1423 */ 1424 function wp_validate_redirect( $location, $default = '' ) { 1425 $location = wp_sanitize_redirect( trim( $location, " \t\n\r\0\x08\x0B" ) ); 1426 // Browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'. 1427 if ( '//' === substr( $location, 0, 2 ) ) { 1428 $location = 'http:' . $location; 1429 } 1430 1431 // In PHP 5 parse_url() may fail if the URL query part contains 'http://'. 1432 // See https://bugs.php.net/bug.php?id=38143 1433 $cut = strpos( $location, '?' ); 1434 $test = $cut ? substr( $location, 0, $cut ) : $location; 1435 1436 $lp = parse_url( $test ); 1437 1438 // Give up if malformed URL. 1439 if ( false === $lp ) { 1440 return $default; 1441 } 1442 1443 // Allow only 'http' and 'https' schemes. No 'data:', etc. 1444 if ( isset( $lp['scheme'] ) && ! ( 'http' === $lp['scheme'] || 'https' === $lp['scheme'] ) ) { 1445 return $default; 1446 } 1447 1448 if ( ! isset( $lp['host'] ) && ! empty( $lp['path'] ) && '/' !== $lp['path'][0] ) { 1449 $path = ''; 1450 if ( ! empty( $_SERVER['REQUEST_URI'] ) ) { 1451 $path = dirname( parse_url( 'http://placeholder' . $_SERVER['REQUEST_URI'], PHP_URL_PATH ) . '?' ); 1452 $path = wp_normalize_path( $path ); 1453 } 1454 $location = '/' . ltrim( $path . '/', '/' ) . $location; 1455 } 1456 1457 // Reject if certain components are set but host is not. 1458 // This catches URLs like https:host.com for which parse_url() does not set the host field. 1459 if ( ! isset( $lp['host'] ) && ( isset( $lp['scheme'] ) || isset( $lp['user'] ) || isset( $lp['pass'] ) || isset( $lp['port'] ) ) ) { 1460 return $default; 1461 } 1462 1463 // Reject malformed components parse_url() can return on odd inputs. 1464 foreach ( array( 'user', 'pass', 'host' ) as $component ) { 1465 if ( isset( $lp[ $component ] ) && strpbrk( $lp[ $component ], ':/?#@' ) ) { 1466 return $default; 1467 } 1468 } 1469 1470 $wpp = parse_url( home_url() ); 1471 1472 /** 1473 * Filters the list of allowed hosts to redirect to. 1474 * 1475 * @since 2.3.0 1476 * 1477 * @param string[] $hosts An array of allowed host names. 1478 * @param string $host The host name of the redirect destination; empty string if not set. 1479 */ 1480 $allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array( $wpp['host'] ), isset( $lp['host'] ) ? $lp['host'] : '' ); 1481 1482 if ( isset( $lp['host'] ) && ( ! in_array( $lp['host'], $allowed_hosts, true ) && strtolower( $wpp['host'] ) !== $lp['host'] ) ) { 1483 $location = $default; 1484 } 1485 1486 return $location; 1487 } 1488 endif; 1489 1490 if ( ! function_exists( 'wp_notify_postauthor' ) ) : 1491 /** 1492 * Notify an author (and/or others) of a comment/trackback/pingback on a post. 1493 * 1494 * @since 1.0.0 1495 * 1496 * @param int|WP_Comment $comment_id Comment ID or WP_Comment object. 1497 * @param string $deprecated Not used 1498 * @return bool True on completion. False if no email addresses were specified. 1499 */ 1500 function wp_notify_postauthor( $comment_id, $deprecated = null ) { 1501 if ( null !== $deprecated ) { 1502 _deprecated_argument( __FUNCTION__, '3.8.0' ); 1503 } 1504 1505 $comment = get_comment( $comment_id ); 1506 if ( empty( $comment ) || empty( $comment->comment_post_ID ) ) { 1507 return false; 1508 } 1509 1510 $post = get_post( $comment->comment_post_ID ); 1511 $author = get_userdata( $post->post_author ); 1512 1513 // Who to notify? By default, just the post author, but others can be added. 1514 $emails = array(); 1515 if ( $author ) { 1516 $emails[] = $author->user_email; 1517 } 1518 1519 /** 1520 * Filters the list of email addresses to receive a comment notification. 1521 * 1522 * By default, only post authors are notified of comments. This filter allows 1523 * others to be added. 1524 * 1525 * @since 3.7.0 1526 * 1527 * @param string[] $emails An array of email addresses to receive a comment notification. 1528 * @param int $comment_id The comment ID. 1529 */ 1530 $emails = apply_filters( 'comment_notification_recipients', $emails, $comment->comment_ID ); 1531 $emails = array_filter( $emails ); 1532 1533 // If there are no addresses to send the comment to, bail. 1534 if ( ! count( $emails ) ) { 1535 return false; 1536 } 1537 1538 // Facilitate unsetting below without knowing the keys. 1539 $emails = array_flip( $emails ); 1540 1541 /** 1542 * Filters whether to notify comment authors of their comments on their own posts. 1543 * 1544 * By default, comment authors aren't notified of their comments on their own 1545 * posts. This filter allows you to override that. 1546 * 1547 * @since 3.8.0 1548 * 1549 * @param bool $notify Whether to notify the post author of their own comment. 1550 * Default false. 1551 * @param int $comment_id The comment ID. 1552 */ 1553 $notify_author = apply_filters( 'comment_notification_notify_author', false, $comment->comment_ID ); 1554 1555 // The comment was left by the author. 1556 if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) { 1557 unset( $emails[ $author->user_email ] ); 1558 } 1559 1560 // The author moderated a comment on their own post. 1561 if ( $author && ! $notify_author && get_current_user_id() == $post->post_author ) { 1562 unset( $emails[ $author->user_email ] ); 1563 } 1564 1565 // The post author is no longer a member of the blog. 1566 if ( $author && ! $notify_author && ! user_can( $post->post_author, 'read_post', $post->ID ) ) { 1567 unset( $emails[ $author->user_email ] ); 1568 } 1569 1570 // If there's no email to send the comment to, bail, otherwise flip array back around for use below. 1571 if ( ! count( $emails ) ) { 1572 return false; 1573 } else { 1574 $emails = array_flip( $emails ); 1575 } 1576 1577 $switched_locale = switch_to_locale( get_locale() ); 1578 1579 $comment_author_domain = ''; 1580 if ( WP_Http::is_ip_address( $comment->comment_author_IP ) ) { 1581 $comment_author_domain = gethostbyaddr( $comment->comment_author_IP ); 1582 } 1583 1584 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1585 // We want to reverse this for the plain text arena of emails. 1586 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1587 $comment_content = wp_specialchars_decode( $comment->comment_content ); 1588 1589 switch ( $comment->comment_type ) { 1590 case 'trackback': 1591 /* translators: %s: Post title. */ 1592 $notify_message = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n"; 1593 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1594 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1595 /* translators: %s: Trackback/pingback/comment author URL. */ 1596 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1597 /* translators: %s: Comment text. */ 1598 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1599 $notify_message .= __( 'You can see all trackbacks on this post here:' ) . "\r\n"; 1600 /* translators: Trackback notification email subject. 1: Site title, 2: Post title. */ 1601 $subject = sprintf( __( '[%1$s] Trackback: "%2$s"' ), $blogname, $post->post_title ); 1602 break; 1603 1604 case 'pingback': 1605 /* translators: %s: Post title. */ 1606 $notify_message = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n"; 1607 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1608 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1609 /* translators: %s: Trackback/pingback/comment author URL. */ 1610 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1611 /* translators: %s: Comment text. */ 1612 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1613 $notify_message .= __( 'You can see all pingbacks on this post here:' ) . "\r\n"; 1614 /* translators: Pingback notification email subject. 1: Site title, 2: Post title. */ 1615 $subject = sprintf( __( '[%1$s] Pingback: "%2$s"' ), $blogname, $post->post_title ); 1616 break; 1617 1618 default: // Comments. 1619 /* translators: %s: Post title. */ 1620 $notify_message = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n"; 1621 /* translators: 1: Comment author's name, 2: Comment author's IP address, 3: Comment author's hostname. */ 1622 $notify_message .= sprintf( __( 'Author: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1623 /* translators: %s: Comment author email. */ 1624 $notify_message .= sprintf( __( 'Email: %s' ), $comment->comment_author_email ) . "\r\n"; 1625 /* translators: %s: Trackback/pingback/comment author URL. */ 1626 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1627 1628 if ( $comment->comment_parent && user_can( $post->post_author, 'edit_comment', $comment->comment_parent ) ) { 1629 /* translators: Comment moderation. %s: Parent comment edit URL. */ 1630 $notify_message .= sprintf( __( 'In reply to: %s' ), admin_url( "comment.php?action=editcomment&c={$comment->comment_parent}#wpbody-content" ) ) . "\r\n"; 1631 } 1632 1633 /* translators: %s: Comment text. */ 1634 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1635 $notify_message .= __( 'You can see all comments on this post here:' ) . "\r\n"; 1636 /* translators: Comment notification email subject. 1: Site title, 2: Post title. */ 1637 $subject = sprintf( __( '[%1$s] Comment: "%2$s"' ), $blogname, $post->post_title ); 1638 break; 1639 } 1640 1641 $notify_message .= get_permalink( $comment->comment_post_ID ) . "#comments\r\n\r\n"; 1642 /* translators: %s: Comment URL. */ 1643 $notify_message .= sprintf( __( 'Permalink: %s' ), get_comment_link( $comment ) ) . "\r\n"; 1644 1645 if ( user_can( $post->post_author, 'edit_comment', $comment->comment_ID ) ) { 1646 if ( EMPTY_TRASH_DAYS ) { 1647 /* translators: Comment moderation. %s: Comment action URL. */ 1648 $notify_message .= sprintf( __( 'Trash it: %s' ), admin_url( "comment.php?action=trash&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1649 } else { 1650 /* translators: Comment moderation. %s: Comment action URL. */ 1651 $notify_message .= sprintf( __( 'Delete it: %s' ), admin_url( "comment.php?action=delete&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1652 } 1653 /* translators: Comment moderation. %s: Comment action URL. */ 1654 $notify_message .= sprintf( __( 'Spam it: %s' ), admin_url( "comment.php?action=spam&c={$comment->comment_ID}#wpbody-content" ) ) . "\r\n"; 1655 } 1656 1657 $wp_email = 'wordpress@' . preg_replace( '#^www\.#', '', wp_parse_url( network_home_url(), PHP_URL_HOST ) ); 1658 1659 if ( '' === $comment->comment_author ) { 1660 $from = "From: \"$blogname\" <$wp_email>"; 1661 if ( '' !== $comment->comment_author_email ) { 1662 $reply_to = "Reply-To: $comment->comment_author_email"; 1663 } 1664 } else { 1665 $from = "From: \"$comment->comment_author\" <$wp_email>"; 1666 if ( '' !== $comment->comment_author_email ) { 1667 $reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>"; 1668 } 1669 } 1670 1671 $message_headers = "$from\n" 1672 . 'Content-Type: text/plain; charset="' . get_option( 'blog_charset' ) . "\"\n"; 1673 1674 if ( isset( $reply_to ) ) { 1675 $message_headers .= $reply_to . "\n"; 1676 } 1677 1678 /** 1679 * Filters the comment notification email text. 1680 * 1681 * @since 1.5.2 1682 * 1683 * @param string $notify_message The comment notification email text. 1684 * @param int $comment_id Comment ID. 1685 */ 1686 $notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment->comment_ID ); 1687 1688 /** 1689 * Filters the comment notification email subject. 1690 * 1691 * @since 1.5.2 1692 * 1693 * @param string $subject The comment notification email subject. 1694 * @param int $comment_id Comment ID. 1695 */ 1696 $subject = apply_filters( 'comment_notification_subject', $subject, $comment->comment_ID ); 1697 1698 /** 1699 * Filters the comment notification email headers. 1700 * 1701 * @since 1.5.2 1702 * 1703 * @param string $message_headers Headers for the comment notification email. 1704 * @param int $comment_id Comment ID. 1705 */ 1706 $message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment->comment_ID ); 1707 1708 foreach ( $emails as $email ) { 1709 wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); 1710 } 1711 1712 if ( $switched_locale ) { 1713 restore_previous_locale(); 1714 } 1715 1716 return true; 1717 } 1718 endif; 1719 1720 if ( ! function_exists( 'wp_notify_moderator' ) ) : 1721 /** 1722 * Notifies the moderator of the site about a new comment that is awaiting approval. 1723 * 1724 * @since 1.0.0 1725 * 1726 * @global wpdb $wpdb WordPress database abstraction object. 1727 * 1728 * Uses the {@see 'notify_moderator'} filter to determine whether the site moderator 1729 * should be notified, overriding the site setting. 1730 * 1731 * @param int $comment_id Comment ID. 1732 * @return true Always returns true. 1733 */ 1734 function wp_notify_moderator( $comment_id ) { 1735 global $wpdb; 1736 1737 $maybe_notify = get_option( 'moderation_notify' ); 1738 1739 /** 1740 * Filters whether to send the site moderator email notifications, overriding the site setting. 1741 * 1742 * @since 4.4.0 1743 * 1744 * @param bool $maybe_notify Whether to notify blog moderator. 1745 * @param int $comment_ID The id of the comment for the notification. 1746 */ 1747 $maybe_notify = apply_filters( 'notify_moderator', $maybe_notify, $comment_id ); 1748 1749 if ( ! $maybe_notify ) { 1750 return true; 1751 } 1752 1753 $comment = get_comment( $comment_id ); 1754 $post = get_post( $comment->comment_post_ID ); 1755 $user = get_userdata( $post->post_author ); 1756 // Send to the administration and to the post author if the author can modify the comment. 1757 $emails = array( get_option( 'admin_email' ) ); 1758 if ( $user && user_can( $user->ID, 'edit_comment', $comment_id ) && ! empty( $user->user_email ) ) { 1759 if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) { 1760 $emails[] = $user->user_email; 1761 } 1762 } 1763 1764 $switched_locale = switch_to_locale( get_locale() ); 1765 1766 $comment_author_domain = ''; 1767 if ( WP_Http::is_ip_address( $comment->comment_author_IP ) ) { 1768 $comment_author_domain = gethostbyaddr( $comment->comment_author_IP ); 1769 } 1770 1771 $comments_waiting = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_approved = '0'" ); 1772 1773 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1774 // We want to reverse this for the plain text arena of emails. 1775 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1776 $comment_content = wp_specialchars_decode( $comment->comment_content ); 1777 1778 switch ( $comment->comment_type ) { 1779 case 'trackback': 1780 /* translators: %s: Post title. */ 1781 $notify_message = sprintf( __( 'A new trackback on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1782 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1783 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1784 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1785 /* translators: %s: Trackback/pingback/comment author URL. */ 1786 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1787 $notify_message .= __( 'Trackback excerpt: ' ) . "\r\n" . $comment_content . "\r\n\r\n"; 1788 break; 1789 1790 case 'pingback': 1791 /* translators: %s: Post title. */ 1792 $notify_message = sprintf( __( 'A new pingback on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1793 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1794 /* translators: 1: Trackback/pingback website name, 2: Website IP address, 3: Website hostname. */ 1795 $notify_message .= sprintf( __( 'Website: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1796 /* translators: %s: Trackback/pingback/comment author URL. */ 1797 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1798 $notify_message .= __( 'Pingback excerpt: ' ) . "\r\n" . $comment_content . "\r\n\r\n"; 1799 break; 1800 1801 default: // Comments. 1802 /* translators: %s: Post title. */ 1803 $notify_message = sprintf( __( 'A new comment on the post "%s" is waiting for your approval' ), $post->post_title ) . "\r\n"; 1804 $notify_message .= get_permalink( $comment->comment_post_ID ) . "\r\n\r\n"; 1805 /* translators: 1: Comment author's name, 2: Comment author's IP address, 3: Comment author's hostname. */ 1806 $notify_message .= sprintf( __( 'Author: %1$s (IP address: %2$s, %3$s)' ), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; 1807 /* translators: %s: Comment author email. */ 1808 $notify_message .= sprintf( __( 'Email: %s' ), $comment->comment_author_email ) . "\r\n"; 1809 /* translators: %s: Trackback/pingback/comment author URL. */ 1810 $notify_message .= sprintf( __( 'URL: %s' ), $comment->comment_author_url ) . "\r\n"; 1811 1812 if ( $comment->comment_parent ) { 1813 /* translators: Comment moderation. %s: Parent comment edit URL. */ 1814 $notify_message .= sprintf( __( 'In reply to: %s' ), admin_url( "comment.php?action=editcomment&c={$comment->comment_parent}#wpbody-content" ) ) . "\r\n"; 1815 } 1816 1817 /* translators: %s: Comment text. */ 1818 $notify_message .= sprintf( __( 'Comment: %s' ), "\r\n" . $comment_content ) . "\r\n\r\n"; 1819 break; 1820 } 1821 1822 /* translators: Comment moderation. %s: Comment action URL. */ 1823 $notify_message .= sprintf( __( 'Approve it: %s' ), admin_url( "comment.php?action=approve&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1824 1825 if ( EMPTY_TRASH_DAYS ) { 1826 /* translators: Comment moderation. %s: Comment action URL. */ 1827 $notify_message .= sprintf( __( 'Trash it: %s' ), admin_url( "comment.php?action=trash&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1828 } else { 1829 /* translators: Comment moderation. %s: Comment action URL. */ 1830 $notify_message .= sprintf( __( 'Delete it: %s' ), admin_url( "comment.php?action=delete&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1831 } 1832 1833 /* translators: Comment moderation. %s: Comment action URL. */ 1834 $notify_message .= sprintf( __( 'Spam it: %s' ), admin_url( "comment.php?action=spam&c={$comment_id}#wpbody-content" ) ) . "\r\n"; 1835 1836 $notify_message .= sprintf( 1837 /* translators: Comment moderation. %s: Number of comments awaiting approval. */ 1838 _n( 1839 'Currently %s comment is waiting for approval. Please visit the moderation panel:', 1840 'Currently %s comments are waiting for approval. Please visit the moderation panel:', 1841 $comments_waiting 1842 ), 1843 number_format_i18n( $comments_waiting ) 1844 ) . "\r\n"; 1845 $notify_message .= admin_url( 'edit-comments.php?comment_status=moderated#wpbody-content' ) . "\r\n"; 1846 1847 /* translators: Comment moderation notification email subject. 1: Site title, 2: Post title. */ 1848 $subject = sprintf( __( '[%1$s] Please moderate: "%2$s"' ), $blogname, $post->post_title ); 1849 $message_headers = ''; 1850 1851 /** 1852 * Filters the list of recipients for comment moderation emails. 1853 * 1854 * @since 3.7.0 1855 * 1856 * @param string[] $emails List of email addresses to notify for comment moderation. 1857 * @param int $comment_id Comment ID. 1858 */ 1859 $emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id ); 1860 1861 /** 1862 * Filters the comment moderation email text. 1863 * 1864 * @since 1.5.2 1865 * 1866 * @param string $notify_message Text of the comment moderation email. 1867 * @param int $comment_id Comment ID. 1868 */ 1869 $notify_message = apply_filters( 'comment_moderation_text', $notify_message, $comment_id ); 1870 1871 /** 1872 * Filters the comment moderation email subject. 1873 * 1874 * @since 1.5.2 1875 * 1876 * @param string $subject Subject of the comment moderation email. 1877 * @param int $comment_id Comment ID. 1878 */ 1879 $subject = apply_filters( 'comment_moderation_subject', $subject, $comment_id ); 1880 1881 /** 1882 * Filters the comment moderation email headers. 1883 * 1884 * @since 2.8.0 1885 * 1886 * @param string $message_headers Headers for the comment moderation email. 1887 * @param int $comment_id Comment ID. 1888 */ 1889 $message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id ); 1890 1891 foreach ( $emails as $email ) { 1892 wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); 1893 } 1894 1895 if ( $switched_locale ) { 1896 restore_previous_locale(); 1897 } 1898 1899 return true; 1900 } 1901 endif; 1902 1903 if ( ! function_exists( 'wp_password_change_notification' ) ) : 1904 /** 1905 * Notify the blog admin of a user changing password, normally via email. 1906 * 1907 * @since 2.7.0 1908 * 1909 * @param WP_User $user User object. 1910 */ 1911 function wp_password_change_notification( $user ) { 1912 // Send a copy of password change notification to the admin, 1913 // but check to see if it's the admin whose password we're changing, and skip this. 1914 if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) { 1915 /* translators: %s: User name. */ 1916 $message = sprintf( __( 'Password changed for user: %s' ), $user->user_login ) . "\r\n"; 1917 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1918 // We want to reverse this for the plain text arena of emails. 1919 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1920 1921 $wp_password_change_notification_email = array( 1922 'to' => get_option( 'admin_email' ), 1923 /* translators: Password change notification email subject. %s: Site title. */ 1924 'subject' => __( '[%s] Password Changed' ), 1925 'message' => $message, 1926 'headers' => '', 1927 ); 1928 1929 /** 1930 * Filters the contents of the password change notification email sent to the site admin. 1931 * 1932 * @since 4.9.0 1933 * 1934 * @param array $wp_password_change_notification_email { 1935 * Used to build wp_mail(). 1936 * 1937 * @type string $to The intended recipient - site admin email address. 1938 * @type string $subject The subject of the email. 1939 * @type string $message The body of the email. 1940 * @type string $headers The headers of the email. 1941 * } 1942 * @param WP_User $user User object for user whose password was changed. 1943 * @param string $blogname The site title. 1944 */ 1945 $wp_password_change_notification_email = apply_filters( 'wp_password_change_notification_email', $wp_password_change_notification_email, $user, $blogname ); 1946 1947 wp_mail( 1948 $wp_password_change_notification_email['to'], 1949 wp_specialchars_decode( sprintf( $wp_password_change_notification_email['subject'], $blogname ) ), 1950 $wp_password_change_notification_email['message'], 1951 $wp_password_change_notification_email['headers'] 1952 ); 1953 } 1954 } 1955 endif; 1956 1957 if ( ! function_exists( 'wp_new_user_notification' ) ) : 1958 /** 1959 * Email login credentials to a newly-registered user. 1960 * 1961 * A new user registration notification is also sent to admin email. 1962 * 1963 * @since 2.0.0 1964 * @since 4.3.0 The `$plaintext_pass` parameter was changed to `$notify`. 1965 * @since 4.3.1 The `$plaintext_pass` parameter was deprecated. `$notify` added as a third parameter. 1966 * @since 4.6.0 The `$notify` parameter accepts 'user' for sending notification only to the user created. 1967 * 1968 * @param int $user_id User ID. 1969 * @param null $deprecated Not used (argument deprecated). 1970 * @param string $notify Optional. Type of notification that should happen. Accepts 'admin' or an empty 1971 * string (admin only), 'user', or 'both' (admin and user). Default empty. 1972 */ 1973 function wp_new_user_notification( $user_id, $deprecated = null, $notify = '' ) { 1974 if ( null !== $deprecated ) { 1975 _deprecated_argument( __FUNCTION__, '4.3.1' ); 1976 } 1977 1978 // Accepts only 'user', 'admin' , 'both' or default '' as $notify. 1979 if ( ! in_array( $notify, array( 'user', 'admin', 'both', '' ), true ) ) { 1980 return; 1981 } 1982 1983 $user = get_userdata( $user_id ); 1984 1985 // The blogname option is escaped with esc_html() on the way into the database in sanitize_option(). 1986 // We want to reverse this for the plain text arena of emails. 1987 $blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ); 1988 1989 if ( 'user' !== $notify ) { 1990 $switched_locale = switch_to_locale( get_locale() ); 1991 1992 /* translators: %s: Site title. */ 1993 $message = sprintf( __( 'New user registration on your site %s:' ), $blogname ) . "\r\n\r\n"; 1994 /* translators: %s: User login. */ 1995 $message .= sprintf( __( 'Username: %s' ), $user->user_login ) . "\r\n\r\n"; 1996 /* translators: %s: User email address. */ 1997 $message .= sprintf( __( 'Email: %s' ), $user->user_email ) . "\r\n"; 1998 1999 $wp_new_user_notification_email_admin = array( 2000 'to' => get_option( 'admin_email' ), 2001 /* translators: New user registration notification email subject. %s: Site title. */ 2002 'subject' => __( '[%s] New User Registration' ), 2003 'message' => $message, 2004 'headers' => '', 2005 ); 2006 2007 /** 2008 * Filters the contents of the new user notification email sent to the site admin. 2009 * 2010 * @since 4.9.0 2011 * 2012 * @param array $wp_new_user_notification_email_admin { 2013 * Used to build wp_mail(). 2014 * 2015 * @type string $to The intended recipient - site admin email address. 2016 * @type string $subject The subject of the email. 2017 * @type string $message The body of the email. 2018 * @type string $headers The headers of the email. 2019 * } 2020 * @param WP_User $user User object for new user. 2021 * @param string $blogname The site title. 2022 */ 2023 $wp_new_user_notification_email_admin = apply_filters( 'wp_new_user_notification_email_admin', $wp_new_user_notification_email_admin, $user, $blogname ); 2024 2025 wp_mail( 2026 $wp_new_user_notification_email_admin['to'], 2027 wp_specialchars_decode( sprintf( $wp_new_user_notification_email_admin['subject'], $blogname ) ), 2028 $wp_new_user_notification_email_admin['message'], 2029 $wp_new_user_notification_email_admin['headers'] 2030 ); 2031 2032 if ( $switched_locale ) { 2033 restore_previous_locale(); 2034 } 2035 } 2036 2037 // `$deprecated` was pre-4.3 `$plaintext_pass`. An empty `$plaintext_pass` didn't sent a user notification. 2038 if ( 'admin' === $notify || ( empty( $deprecated ) && empty( $notify ) ) ) { 2039 return; 2040 } 2041 2042 $key = get_password_reset_key( $user ); 2043 if ( is_wp_error( $key ) ) { 2044 return; 2045 } 2046 2047 $switched_locale = switch_to_locale( get_user_locale( $user ) ); 2048 2049 /* translators: %s: User login. */ 2050 $message = sprintf( __( 'Username: %s' ), $user->user_login ) . "\r\n\r\n"; 2051 $message .= __( 'To set your password, visit the following address:' ) . "\r\n\r\n"; 2052 $message .= network_site_url( "wp-login.php?action=rp&key=$key&login=" . rawurlencode( $user->user_login ), 'login' ) . "\r\n\r\n"; 2053 2054 $message .= wp_login_url() . "\r\n"; 2055 2056 $wp_new_user_notification_email = array( 2057 'to' => $user->user_email, 2058 /* translators: Login details notification email subject. %s: Site title. */ 2059 'subject' => __( '[%s] Login Details' ), 2060 'message' => $message, 2061 'headers' => '', 2062 ); 2063 2064 /** 2065 * Filters the contents of the new user notification email sent to the new user. 2066 * 2067 * @since 4.9.0 2068 * 2069 * @param array $wp_new_user_notification_email { 2070 * Used to build wp_mail(). 2071 * 2072 * @type string $to The intended recipient - New user email address. 2073 * @type string $subject The subject of the email. 2074 * @type string $message The body of the email. 2075 * @type string $headers The headers of the email. 2076 * } 2077 * @param WP_User $user User object for new user. 2078 * @param string $blogname The site title. 2079 */ 2080 $wp_new_user_notification_email = apply_filters( 'wp_new_user_notification_email', $wp_new_user_notification_email, $user, $blogname ); 2081 2082 wp_mail( 2083 $wp_new_user_notification_email['to'], 2084 wp_specialchars_decode( sprintf( $wp_new_user_notification_email['subject'], $blogname ) ), 2085 $wp_new_user_notification_email['message'], 2086 $wp_new_user_notification_email['headers'] 2087 ); 2088 2089 if ( $switched_locale ) { 2090 restore_previous_locale(); 2091 } 2092 } 2093 endif; 2094 2095 if ( ! function_exists( 'wp_nonce_tick' ) ) : 2096 /** 2097 * Returns the time-dependent variable for nonce creation. 2098 * 2099 * A nonce has a lifespan of two ticks. Nonces in their second tick may be 2100 * updated, e.g. by autosave. 2101 * 2102 * @since 2.5.0 2103 * 2104 * @return float Float value rounded up to the next highest integer. 2105 */ 2106 function wp_nonce_tick() { 2107 /** 2108 * Filters the lifespan of nonces in seconds. 2109 * 2110 * @since 2.5.0 2111 * 2112 * @param int $lifespan Lifespan of nonces in seconds. Default 86,400 seconds, or one day. 2113 */ 2114 $nonce_life = apply_filters( 'nonce_life', DAY_IN_SECONDS ); 2115 2116 return ceil( time() / ( $nonce_life / 2 ) ); 2117 } 2118 endif; 2119 2120 if ( ! function_exists( 'wp_verify_nonce' ) ) : 2121 /** 2122 * Verifies that a correct security nonce was used with time limit. 2123 * 2124 * A nonce is valid for 24 hours (by default). 2125 * 2126 * @since 2.0.3 2127 * 2128 * @param string $nonce Nonce value that was used for verification, usually via a form field. 2129 * @param string|int $action Should give context to what is taking place and be the same when nonce was created. 2130 * @return int|false 1 if the nonce is valid and generated between 0-12 hours ago, 2131 * 2 if the nonce is valid and generated between 12-24 hours ago. 2132 * False if the nonce is invalid. 2133 */ 2134 function wp_verify_nonce( $nonce, $action = -1 ) { 2135 $nonce = (string) $nonce; 2136 $user = wp_get_current_user(); 2137 $uid = (int) $user->ID; 2138 if ( ! $uid ) { 2139 /** 2140 * Filters whether the user who generated the nonce is logged out. 2141 * 2142 * @since 3.5.0 2143 * 2144 * @param int $uid ID of the nonce-owning user. 2145 * @param string $action The nonce action. 2146 */ 2147 $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); 2148 } 2149 2150 if ( empty( $nonce ) ) { 2151 return false; 2152 } 2153 2154 $token = wp_get_session_token(); 2155 $i = wp_nonce_tick(); 2156 2157 // Nonce generated 0-12 hours ago. 2158 $expected = substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2159 if ( hash_equals( $expected, $nonce ) ) { 2160 return 1; 2161 } 2162 2163 // Nonce generated 12-24 hours ago. 2164 $expected = substr( wp_hash( ( $i - 1 ) . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2165 if ( hash_equals( $expected, $nonce ) ) { 2166 return 2; 2167 } 2168 2169 /** 2170 * Fires when nonce verification fails. 2171 * 2172 * @since 4.4.0 2173 * 2174 * @param string $nonce The invalid nonce. 2175 * @param string|int $action The nonce action. 2176 * @param WP_User $user The current user object. 2177 * @param string $token The user's session token. 2178 */ 2179 do_action( 'wp_verify_nonce_failed', $nonce, $action, $user, $token ); 2180 2181 // Invalid nonce. 2182 return false; 2183 } 2184 endif; 2185 2186 if ( ! function_exists( 'wp_create_nonce' ) ) : 2187 /** 2188 * Creates a cryptographic token tied to a specific action, user, user session, 2189 * and window of time. 2190 * 2191 * @since 2.0.3 2192 * @since 4.0.0 Session tokens were integrated with nonce creation 2193 * 2194 * @param string|int $action Scalar value to add context to the nonce. 2195 * @return string The token. 2196 */ 2197 function wp_create_nonce( $action = -1 ) { 2198 $user = wp_get_current_user(); 2199 $uid = (int) $user->ID; 2200 if ( ! $uid ) { 2201 /** This filter is documented in wp-includes/pluggable.php */ 2202 $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); 2203 } 2204 2205 $token = wp_get_session_token(); 2206 $i = wp_nonce_tick(); 2207 2208 return substr( wp_hash( $i . '|' . $action . '|' . $uid . '|' . $token, 'nonce' ), -12, 10 ); 2209 } 2210 endif; 2211 2212 if ( ! function_exists( 'wp_salt' ) ) : 2213 /** 2214 * Returns a salt to add to hashes. 2215 * 2216 * Salts are created using secret keys. Secret keys are located in two places: 2217 * in the database and in the wp-config.php file. The secret key in the database 2218 * is randomly generated and will be appended to the secret keys in wp-config.php. 2219 * 2220 * The secret keys in wp-config.php should be updated to strong, random keys to maximize 2221 * security. Below is an example of how the secret key constants are defined. 2222 * Do not paste this example directly into wp-config.php. Instead, have a 2223 * {@link https://api.wordpress.org/secret-key/1.1/salt/ secret key created} just 2224 * for you. 2225 * 2226 * define('AUTH_KEY', ' Xakm<o xQy rw4EMsLKM-?!T+,PFF})H4lzcW57AF0U@N@< >M%G4Yt>f`z]MON'); 2227 * define('SECURE_AUTH_KEY', 'LzJ}op]mr|6+![P}Ak:uNdJCJZd>(Hx.-Mh#Tz)pCIU#uGEnfFz|f ;;eU%/U^O~'); 2228 * define('LOGGED_IN_KEY', '|i|Ux`9<p-h$aFf(qnT:sDO:D1P^wZ$$/Ra@miTJi9G;ddp_<q}6H1)o|a +&JCM'); 2229 * define('NONCE_KEY', '%:R{[P|,s.KuMltH5}cI;/k<Gx~j!f0I)m_sIyu+&NJZ)-iO>z7X>QYR0Z_XnZ@|'); 2230 * define('AUTH_SALT', 'eZyT)-Naw]F8CwA*VaW#q*|.)g@o}||wf~@C-YSt}(dh_r6EbI#A,y|nU2{B#JBW'); 2231 * define('SECURE_AUTH_SALT', '!=oLUTXh,QW=H `}`L|9/^4-3 STz},T(w}W<I`.JjPi)<Bmf1v,HpGe}T1:Xt7n'); 2232 * define('LOGGED_IN_SALT', '+XSqHc;@Q*K_b|Z?NC[3H!!EONbh.n<+=uKR:>*c(u`g~EJBf#8u#R{mUEZrozmm'); 2233 * define('NONCE_SALT', 'h`GXHhD>SLWVfg1(1(N{;.V!MoE(SfbA_ksP@&`+AycHcAV$+?@3q+rxV{%^VyKT'); 2234 * 2235 * Salting passwords helps against tools which has stored hashed values of 2236 * common dictionary strings. The added values makes it harder to crack. 2237 * 2238 * @since 2.5.0 2239 * 2240 * @link https://api.wordpress.org/secret-key/1.1/salt/ Create secrets for wp-config.php 2241 * 2242 * @param string $scheme Authentication scheme (auth, secure_auth, logged_in, nonce) 2243 * @return string Salt value 2244 */ 2245 function wp_salt( $scheme = 'auth' ) { 2246 static $cached_salts = array(); 2247 if ( isset( $cached_salts[ $scheme ] ) ) { 2248 /** 2249 * Filters the WordPress salt. 2250 * 2251 * @since 2.5.0 2252 * 2253 * @param string $cached_salt Cached salt for the given scheme. 2254 * @param string $scheme Authentication scheme. Values include 'auth', 2255 * 'secure_auth', 'logged_in', and 'nonce'. 2256 */ 2257 return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); 2258 } 2259 2260 static $duplicated_keys; 2261 if ( null === $duplicated_keys ) { 2262 $duplicated_keys = array( 'put your unique phrase here' => true ); 2263 foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { 2264 foreach ( array( 'KEY', 'SALT' ) as $second ) { 2265 if ( ! defined( "{$first}_{$second}" ) ) { 2266 continue; 2267 } 2268 $value = constant( "{$first}_{$second}" ); 2269 $duplicated_keys[ $value ] = isset( $duplicated_keys[ $value ] ); 2270 } 2271 } 2272 } 2273 2274 $values = array( 2275 'key' => '', 2276 'salt' => '', 2277 ); 2278 if ( defined( 'SECRET_KEY' ) && SECRET_KEY && empty( $duplicated_keys[ SECRET_KEY ] ) ) { 2279 $values['key'] = SECRET_KEY; 2280 } 2281 if ( 'auth' === $scheme && defined( 'SECRET_SALT' ) && SECRET_SALT && empty( $duplicated_keys[ SECRET_SALT ] ) ) { 2282 $values['salt'] = SECRET_SALT; 2283 } 2284 2285 if ( in_array( $scheme, array( 'auth', 'secure_auth', 'logged_in', 'nonce' ), true ) ) { 2286 foreach ( array( 'key', 'salt' ) as $type ) { 2287 $const = strtoupper( "{$scheme}_{$type}" ); 2288 if ( defined( $const ) && constant( $const ) && empty( $duplicated_keys[ constant( $const ) ] ) ) { 2289 $values[ $type ] = constant( $const ); 2290 } elseif ( ! $values[ $type ] ) { 2291 $values[ $type ] = get_site_option( "{$scheme}_{$type}" ); 2292 if ( ! $values[ $type ] ) { 2293 $values[ $type ] = wp_generate_password( 64, true, true ); 2294 update_site_option( "{$scheme}_{$type}", $values[ $type ] ); 2295 } 2296 } 2297 } 2298 } else { 2299 if ( ! $values['key'] ) { 2300 $values['key'] = get_site_option( 'secret_key' ); 2301 if ( ! $values['key'] ) { 2302 $values['key'] = wp_generate_password( 64, true, true ); 2303 update_site_option( 'secret_key', $values['key'] ); 2304 } 2305 } 2306 $values['salt'] = hash_hmac( 'md5', $scheme, $values['key'] ); 2307 } 2308 2309 $cached_salts[ $scheme ] = $values['key'] . $values['salt']; 2310 2311 /** This filter is documented in wp-includes/pluggable.php */ 2312 return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); 2313 } 2314 endif; 2315 2316 if ( ! function_exists( 'wp_hash' ) ) : 2317 /** 2318 * Get hash of given string. 2319 * 2320 * @since 2.0.3 2321 * 2322 * @param string $data Plain text to hash 2323 * @param string $scheme Authentication scheme (auth, secure_auth, logged_in, nonce) 2324 * @return string Hash of $data 2325 */ 2326 function wp_hash( $data, $scheme = 'auth' ) { 2327 $salt = wp_salt( $scheme ); 2328 2329 return hash_hmac( 'md5', $data, $salt ); 2330 } 2331 endif; 2332 2333 if ( ! function_exists( 'wp_hash_password' ) ) : 2334 /** 2335 * Create a hash (encrypt) of a plain text password. 2336 * 2337 * For integration with other applications, this function can be overwritten to 2338 * instead use the other package password checking algorithm. 2339 * 2340 * @since 2.5.0 2341 * 2342 * @global PasswordHash $wp_hasher PHPass object 2343 * 2344 * @param string $password Plain text user password to hash 2345 * @return string The hash string of the password 2346 */ 2347 function wp_hash_password( $password ) { 2348 global $wp_hasher; 2349 2350 if ( empty( $wp_hasher ) ) { 2351 require_once ABSPATH . WPINC . '/class-phpass.php'; 2352 // By default, use the portable hash from phpass. 2353 $wp_hasher = new PasswordHash( 8, true ); 2354 } 2355 2356 return $wp_hasher->HashPassword( trim( $password ) ); 2357 } 2358 endif; 2359 2360 if ( ! function_exists( 'wp_check_password' ) ) : 2361 /** 2362 * Checks the plaintext password against the encrypted Password. 2363 * 2364 * Maintains compatibility between old version and the new cookie authentication 2365 * protocol using PHPass library. The $hash parameter is the encrypted password 2366 * and the function compares the plain text password when encrypted similarly 2367 * against the already encrypted password to see if they match. 2368 * 2369 * For integration with other applications, this function can be overwritten to 2370 * instead use the other package password checking algorithm. 2371 * 2372 * @since 2.5.0 2373 * 2374 * @global PasswordHash $wp_hasher PHPass object used for checking the password 2375 * against the $hash + $password 2376 * @uses PasswordHash::CheckPassword 2377 * 2378 * @param string $password Plaintext user's password 2379 * @param string $hash Hash of the user's password to check against. 2380 * @param string|int $user_id Optional. User ID. 2381 * @return bool False, if the $password does not match the hashed password 2382 */ 2383 function wp_check_password( $password, $hash, $user_id = '' ) { 2384 global $wp_hasher; 2385 2386 // If the hash is still md5... 2387 if ( strlen( $hash ) <= 32 ) { 2388 $check = hash_equals( $hash, md5( $password ) ); 2389 if ( $check && $user_id ) { 2390 // Rehash using new hash. 2391 wp_set_password( $password, $user_id ); 2392 $hash = wp_hash_password( $password ); 2393 } 2394 2395 /** 2396 * Filters whether the plaintext password matches the encrypted password. 2397 * 2398 * @since 2.5.0 2399 * 2400 * @param bool $check Whether the passwords match. 2401 * @param string $password The plaintext password. 2402 * @param string $hash The hashed password. 2403 * @param string|int $user_id User ID. Can be empty. 2404 */ 2405 return apply_filters( 'check_password', $check, $password, $hash, $user_id ); 2406 } 2407 2408 // If the stored hash is longer than an MD5, 2409 // presume the new style phpass portable hash. 2410 if ( empty( $wp_hasher ) ) { 2411 require_once ABSPATH . WPINC . '/class-phpass.php'; 2412 // By default, use the portable hash from phpass. 2413 $wp_hasher = new PasswordHash( 8, true ); 2414 } 2415 2416 $check = $wp_hasher->CheckPassword( $password, $hash ); 2417 2418 /** This filter is documented in wp-includes/pluggable.php */ 2419 return apply_filters( 'check_password', $check, $password, $hash, $user_id ); 2420 } 2421 endif; 2422 2423 if ( ! function_exists( 'wp_generate_password' ) ) : 2424 /** 2425 * Generates a random password drawn from the defined set of characters. 2426 * 2427 * Uses wp_rand() is used to create passwords with far less predictability 2428 * than similar native PHP functions like `rand()` or `mt_rand()`. 2429 * 2430 * @since 2.5.0 2431 * 2432 * @param int $length Optional. The length of password to generate. Default 12. 2433 * @param bool $special_chars Optional. Whether to include standard special characters. 2434 * Default true. 2435 * @param bool $extra_special_chars Optional. Whether to include other special characters. 2436 * Used when generating secret keys and salts. Default false. 2437 * @return string The random password. 2438 */ 2439 function wp_generate_password( $length = 12, $special_chars = true, $extra_special_chars = false ) { 2440 $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; 2441 if ( $special_chars ) { 2442 $chars .= '!@#$%^&*()'; 2443 } 2444 if ( $extra_special_chars ) { 2445 $chars .= '-_ []{}<>~`+=,.;:/?|'; 2446 } 2447 2448 $password = ''; 2449 for ( $i = 0; $i < $length; $i++ ) { 2450 $password .= substr( $chars, wp_rand( 0, strlen( $chars ) - 1 ), 1 ); 2451 } 2452 2453 /** 2454 * Filters the randomly-generated password. 2455 * 2456 * @since 3.0.0 2457 * @since 5.3.0 Added the `$length`, `$special_chars`, and `$extra_special_chars` parameters. 2458 * 2459 * @param string $password The generated password. 2460 * @param int $length The length of password to generate. 2461 * @param bool $special_chars Whether to include standard special characters. 2462 * @param bool $extra_special_chars Whether to include other special characters. 2463 */ 2464 return apply_filters( 'random_password', $password, $length, $special_chars, $extra_special_chars ); 2465 } 2466 endif; 2467 2468 if ( ! function_exists( 'wp_rand' ) ) : 2469 /** 2470 * Generates a random number. 2471 * 2472 * @since 2.6.2 2473 * @since 4.4.0 Uses PHP7 random_int() or the random_compat library if available. 2474 * 2475 * @global string $rnd_value 2476 * 2477 * @param int $min Lower limit for the generated number 2478 * @param int $max Upper limit for the generated number 2479 * @return int A random number between min and max 2480 */ 2481 function wp_rand( $min = 0, $max = 0 ) { 2482 global $rnd_value; 2483 2484 // Some misconfigured 32-bit environments (Entropy PHP, for example) 2485 // truncate integers larger than PHP_INT_MAX to PHP_INT_MAX rather than overflowing them to floats. 2486 $max_random_number = 3000000000 === 2147483647 ? (float) '4294967295' : 4294967295; // 4294967295 = 0xffffffff 2487 2488 // We only handle ints, floats are truncated to their integer value. 2489 $min = (int) $min; 2490 $max = (int) $max; 2491 2492 // Use PHP's CSPRNG, or a compatible method. 2493 static $use_random_int_functionality = true; 2494 if ( $use_random_int_functionality ) { 2495 try { 2496 $_max = ( 0 != $max ) ? $max : $max_random_number; 2497 // wp_rand() can accept arguments in either order, PHP cannot. 2498 $_max = max( $min, $_max ); 2499 $_min = min( $min, $_max ); 2500 $val = random_int( $_min, $_max ); 2501 if ( false !== $val ) { 2502 return absint( $val ); 2503 } else { 2504 $use_random_int_functionality = false; 2505 } 2506 } catch ( Error $e ) { 2507 $use_random_int_functionality = false; 2508 } catch ( Exception $e ) { 2509 $use_random_int_functionality = false; 2510 } 2511 } 2512 2513 // Reset $rnd_value after 14 uses. 2514 // 32 (md5) + 40 (sha1) + 40 (sha1) / 8 = 14 random numbers from $rnd_value. 2515 if ( strlen( $rnd_value ) < 8 ) { 2516 if ( defined( 'WP_SETUP_CONFIG' ) ) { 2517 static $seed = ''; 2518 } else { 2519 $seed = get_transient( 'random_seed' ); 2520 } 2521 $rnd_value = md5( uniqid( microtime() . mt_rand(), true ) . $seed ); 2522 $rnd_value .= sha1( $rnd_value ); 2523 $rnd_value .= sha1( $rnd_value . $seed ); 2524 $seed = md5( $seed . $rnd_value ); 2525 if ( ! defined( 'WP_SETUP_CONFIG' ) && ! defined( 'WP_INSTALLING' ) ) { 2526 set_transient( 'random_seed', $seed ); 2527 } 2528 } 2529 2530 // Take the first 8 digits for our value. 2531 $value = substr( $rnd_value, 0, 8 ); 2532 2533 // Strip the first eight, leaving the remainder for the next call to wp_rand(). 2534 $rnd_value = substr( $rnd_value, 8 ); 2535 2536 $value = abs( hexdec( $value ) ); 2537 2538 // Reduce the value to be within the min - max range. 2539 if ( 0 != $max ) { 2540 $value = $min + ( $max - $min + 1 ) * $value / ( $max_random_number + 1 ); 2541 } 2542 2543 return abs( (int) $value ); 2544 } 2545 endif; 2546 2547 if ( ! function_exists( 'wp_set_password' ) ) : 2548 /** 2549 * Updates the user's password with a new encrypted one. 2550 * 2551 * For integration with other applications, this function can be overwritten to 2552 * instead use the other package password checking algorithm. 2553 * 2554 * Please note: This function should be used sparingly and is really only meant for single-time 2555 * application. Leveraging this improperly in a plugin or theme could result in an endless loop 2556 * of password resets if precautions are not taken to ensure it does not execute on every page load. 2557 * 2558 * @since 2.5.0 2559 * 2560 * @global wpdb $wpdb WordPress database abstraction object. 2561 * 2562 * @param string $password The plaintext new user password 2563 * @param int $user_id User ID 2564 */ 2565 function wp_set_password( $password, $user_id ) { 2566 global $wpdb; 2567 2568 $hash = wp_hash_password( $password ); 2569 $wpdb->update( 2570 $wpdb->users, 2571 array( 2572 'user_pass' => $hash, 2573 'user_activation_key' => '', 2574 ), 2575 array( 'ID' => $user_id ) 2576 ); 2577 2578 clean_user_cache( $user_id ); 2579 } 2580 endif; 2581 2582 if ( ! function_exists( 'get_avatar' ) ) : 2583 /** 2584 * Retrieve the avatar `<img>` tag for a user, email address, MD5 hash, comment, or post. 2585 * 2586 * @since 2.5.0 2587 * @since 4.2.0 Optional `$args` parameter added. 2588 * 2589 * @param mixed $id_or_email The Gravatar to retrieve. Accepts a user_id, gravatar md5 hash, 2590 * user email, WP_User object, WP_Post object, or WP_Comment object. 2591 * @param int $size Optional. Height and width of the avatar image file in pixels. Default 96. 2592 * @param string $default Optional. URL for the default image or a default type. Accepts '404' 2593 * (return a 404 instead of a default image), 'retro' (8bit), 'monsterid' 2594 * (monster), 'wavatar' (cartoon face), 'indenticon' (the "quilt"), 2595 * 'mystery', 'mm', or 'mysteryman' (The Oyster Man), 'blank' (transparent GIF), 2596 * or 'gravatar_default' (the Gravatar logo). Default is the value of the 2597 * 'avatar_default' option, with a fallback of 'mystery'. 2598 * @param string $alt Optional. Alternative text to use in img tag. Default empty. 2599 * @param array $args { 2600 * Optional. Extra arguments to retrieve the avatar. 2601 * 2602 * @type int $height Display height of the avatar in pixels. Defaults to $size. 2603 * @type int $width Display width of the avatar in pixels. Defaults to $size. 2604 * @type bool $force_default Whether to always show the default image, never the Gravatar. Default false. 2605 * @type string $rating What rating to display avatars up to. Accepts 'G', 'PG', 'R', 'X', and are 2606 * judged in that order. Default is the value of the 'avatar_rating' option. 2607 * @type string $scheme URL scheme to use. See set_url_scheme() for accepted values. 2608 * Default null. 2609 * @type array|string $class Array or string of additional classes to add to the img element. 2610 * Default null. 2611 * @type bool $force_display Whether to always show the avatar - ignores the show_avatars option. 2612 * Default false. 2613 * @type string $loading Value for the `loading` attribute. 2614 * Default null. 2615 * @type string $extra_attr HTML attributes to insert in the IMG element. Is not sanitized. Default empty. 2616 * } 2617 * @return string|false `<img>` tag for the user's avatar. False on failure. 2618 */ 2619 function get_avatar( $id_or_email, $size = 96, $default = '', $alt = '', $args = null ) { 2620 $defaults = array( 2621 // get_avatar_data() args. 2622 'size' => 96, 2623 'height' => null, 2624 'width' => null, 2625 'default' => get_option( 'avatar_default', 'mystery' ), 2626 'force_default' => false, 2627 'rating' => get_option( 'avatar_rating' ), 2628 'scheme' => null, 2629 'alt' => '', 2630 'class' => null, 2631 'force_display' => false, 2632 'loading' => null, 2633 'extra_attr' => '', 2634 ); 2635 2636 if ( wp_lazy_loading_enabled( 'img', 'get_avatar' ) ) { 2637 $defaults['loading'] = 'lazy'; 2638 } 2639 2640 if ( empty( $args ) ) { 2641 $args = array(); 2642 } 2643 2644 $args['size'] = (int) $size; 2645 $args['default'] = $default; 2646 $args['alt'] = $alt; 2647 2648 $args = wp_parse_args( $args, $defaults ); 2649 2650 if ( empty( $args['height'] ) ) { 2651 $args['height'] = $args['size']; 2652 } 2653 if ( empty( $args['width'] ) ) { 2654 $args['width'] = $args['size']; 2655 } 2656 2657 if ( is_object( $id_or_email ) && isset( $id_or_email->comment_ID ) ) { 2658 $id_or_email = get_comment( $id_or_email ); 2659 } 2660 2661 /** 2662 * Allows the HTML for a user's avatar to be returned early. 2663 * 2664 * Passing a non-null value will effectively short-circuit get_avatar(), passing 2665 * the value through the {@see 'get_avatar'} filter and returning early. 2666 * 2667 * @since 4.2.0 2668 * 2669 * @param string|null $avatar HTML for the user's avatar. Default null. 2670 * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, 2671 * user email, WP_User object, WP_Post object, or WP_Comment object. 2672 * @param array $args Arguments passed to get_avatar_url(), after processing. 2673 */ 2674 $avatar = apply_filters( 'pre_get_avatar', null, $id_or_email, $args ); 2675 2676 if ( ! is_null( $avatar ) ) { 2677 /** This filter is documented in wp-includes/pluggable.php */ 2678 return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); 2679 } 2680 2681 if ( ! $args['force_display'] && ! get_option( 'show_avatars' ) ) { 2682 return false; 2683 } 2684 2685 $url2x = get_avatar_url( $id_or_email, array_merge( $args, array( 'size' => $args['size'] * 2 ) ) ); 2686 2687 $args = get_avatar_data( $id_or_email, $args ); 2688 2689 $url = $args['url']; 2690 2691 if ( ! $url || is_wp_error( $url ) ) { 2692 return false; 2693 } 2694 2695 $class = array( 'avatar', 'avatar-' . (int) $args['size'], 'photo' ); 2696 2697 if ( ! $args['found_avatar'] || $args['force_default'] ) { 2698 $class[] = 'avatar-default'; 2699 } 2700 2701 if ( $args['class'] ) { 2702 if ( is_array( $args['class'] ) ) { 2703 $class = array_merge( $class, $args['class'] ); 2704 } else { 2705 $class[] = $args['class']; 2706 } 2707 } 2708 2709 // Add `loading` attribute. 2710 $extra_attr = $args['extra_attr']; 2711 $loading = $args['loading']; 2712 2713 if ( in_array( $loading, array( 'lazy', 'eager' ), true ) && ! preg_match( '/\bloading\s*=/', $extra_attr ) ) { 2714 if ( ! empty( $extra_attr ) ) { 2715 $extra_attr .= ' '; 2716 } 2717 2718 $extra_attr .= "loading='{$loading}'"; 2719 } 2720 2721 $avatar = sprintf( 2722 "<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>", 2723 esc_attr( $args['alt'] ), 2724 esc_url( $url ), 2725 esc_url( $url2x ) . ' 2x', 2726 esc_attr( implode( ' ', $class ) ), 2727 (int) $args['height'], 2728 (int) $args['width'], 2729 $extra_attr 2730 ); 2731 2732 /** 2733 * Filters the HTML for a user's avatar. 2734 * 2735 * @since 2.5.0 2736 * @since 4.2.0 The `$args` parameter was added. 2737 * 2738 * @param string $avatar HTML for the user's avatar. 2739 * @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash, 2740 * user email, WP_User object, WP_Post object, or WP_Comment object. 2741 * @param int $size Square avatar width and height in pixels to retrieve. 2742 * @param string $default URL for the default image or a default type. Accepts '404', 'retro', 'monsterid', 2743 * 'wavatar', 'indenticon', 'mystery', 'mm', 'mysteryman', 'blank', or 'gravatar_default'. 2744 * Default is the value of the 'avatar_default' option, with a fallback of 'mystery'. 2745 * @param string $alt Alternative text to use in the avatar image tag. Default empty. 2746 * @param array $args Arguments passed to get_avatar_data(), after processing. 2747 */ 2748 return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args ); 2749 } 2750 endif; 2751 2752 if ( ! function_exists( 'wp_text_diff' ) ) : 2753 /** 2754 * Displays a human readable HTML representation of the difference between two strings. 2755 * 2756 * The Diff is available for getting the changes between versions. The output is 2757 * HTML, so the primary use is for displaying the changes. If the two strings 2758 * are equivalent, then an empty string will be returned. 2759 * 2760 * @since 2.6.0 2761 * 2762 * @see wp_parse_args() Used to change defaults to user defined settings. 2763 * @uses Text_Diff 2764 * @uses WP_Text_Diff_Renderer_Table 2765 * 2766 * @param string $left_string "old" (left) version of string 2767 * @param string $right_string "new" (right) version of string 2768 * @param string|array $args { 2769 * Associative array of options to pass to WP_Text_Diff_Renderer_Table(). 2770 * 2771 * @type string $title Titles the diff in a manner compatible 2772 * with the output. Default empty. 2773 * @type string $title_left Change the HTML to the left of the title. 2774 * Default empty. 2775 * @type string $title_right Change the HTML to the right of the title. 2776 * Default empty. 2777 * @type bool $show_split_view True for split view (two columns), false for 2778 * un-split view (single column). Default true. 2779 * } 2780 * @return string Empty string if strings are equivalent or HTML with differences. 2781 */ 2782 function wp_text_diff( $left_string, $right_string, $args = null ) { 2783 $defaults = array( 2784 'title' => '', 2785 'title_left' => '', 2786 'title_right' => '', 2787 'show_split_view' => true, 2788 ); 2789 $args = wp_parse_args( $args, $defaults ); 2790 2791 if ( ! class_exists( 'WP_Text_Diff_Renderer_Table', false ) ) { 2792 require ABSPATH . WPINC . '/wp-diff.php'; 2793 } 2794 2795 $left_string = normalize_whitespace( $left_string ); 2796 $right_string = normalize_whitespace( $right_string ); 2797 2798 $left_lines = explode( "\n", $left_string ); 2799 $right_lines = explode( "\n", $right_string ); 2800 $text_diff = new Text_Diff( $left_lines, $right_lines ); 2801 $renderer = new WP_Text_Diff_Renderer_Table( $args ); 2802 $diff = $renderer->render( $text_diff ); 2803 2804 if ( ! $diff ) { 2805 return ''; 2806 } 2807 2808 $r = "<table class='diff'>\n"; 2809 2810 if ( ! empty( $args['show_split_view'] ) ) { 2811 $r .= "<col class='content diffsplit left' /><col class='content diffsplit middle' /><col class='content diffsplit right' />"; 2812 } else { 2813 $r .= "<col class='content' />"; 2814 } 2815 2816 if ( $args['title'] || $args['title_left'] || $args['title_right'] ) { 2817 $r .= '<thead>'; 2818 } 2819 if ( $args['title'] ) { 2820 $r .= "<tr class='diff-title'><th colspan='4'>$args[title]</th></tr>\n"; 2821 } 2822 if ( $args['title_left'] || $args['title_right'] ) { 2823 $r .= "<tr class='diff-sub-title'>\n"; 2824 $r .= "\t<td></td><th>$args[title_left]</th>\n"; 2825 $r .= "\t<td></td><th>$args[title_right]</th>\n"; 2826 $r .= "</tr>\n"; 2827 } 2828 if ( $args['title'] || $args['title_left'] || $args['title_right'] ) { 2829 $r .= "</thead>\n"; 2830 } 2831 2832 $r .= "<tbody>\n$diff\n</tbody>\n"; 2833 $r .= '</table>'; 2834 2835 return $r; 2836 } 2837 endif;
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| Generated: Fri Oct 30 01:00:03 2020 | Cross-referenced by PHPXref 0.7.1 |