3 * These functions can be replaced via plugins. If plugins do not redefine these
4 * functions, then these will be used instead.
9 if ( !function_exists('wp_set_current_user') ) :
11 * Changes the current user by ID or name.
13 * Set $id to null and specify a name if you do not know a user's ID.
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.
20 * @global object $current_user The current user object which holds the user data.
21 * @uses do_action() Calls 'set_current_user' hook after setting the current user.
23 * @param int $id User ID
24 * @param string $name User's username
25 * @return WP_User Current user User object
27 function wp_set_current_user($id, $name = '') {
30 if ( isset($current_user) && ($id == $current_user->ID) )
33 $current_user = new WP_User($id, $name);
35 setup_userdata($current_user->ID);
37 do_action('set_current_user');
43 if ( !function_exists('wp_get_current_user') ) :
45 * Retrieve the current user object.
49 * @return WP_User Current user WP_User object
51 function wp_get_current_user() {
54 get_currentuserinfo();
60 if ( !function_exists('get_currentuserinfo') ) :
62 * Populate global variables with information about the currently logged in user.
64 * Will set the current user, if the current user is not set. The current user
65 * will be set to the logged in person. If no user is logged in, then it will
66 * set the current user to 0, which is invalid and won't have any permissions.
69 * @uses $current_user Checks if the current user is set
70 * @uses wp_validate_auth_cookie() Retrieves current logged in user.
72 * @return bool|null False on XMLRPC Request and invalid auth cookie. Null when current user set
74 function get_currentuserinfo() {
77 if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST )
80 if ( ! empty($current_user) )
83 if ( ! $user = wp_validate_auth_cookie() ) {
84 if ( is_blog_admin() || is_network_admin() || empty($_COOKIE[LOGGED_IN_COOKIE]) || !$user = wp_validate_auth_cookie($_COOKIE[LOGGED_IN_COOKIE], 'logged_in') ) {
85 wp_set_current_user(0);
90 wp_set_current_user($user);
94 if ( !function_exists('get_userdata') ) :
96 * Retrieve user info by user ID.
100 * @param int $user_id User ID
101 * @return bool|object False on failure, User DB row object
103 function get_userdata( $user_id ) {
106 if ( ! is_numeric( $user_id ) )
109 $user_id = absint( $user_id );
113 $user = wp_cache_get( $user_id, 'users' );
118 if ( ! $user = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->users WHERE ID = %d LIMIT 1", $user_id ) ) )
127 if ( !function_exists('cache_users') ) :
129 * Retrieve info for user lists to prevent multiple queries by get_userdata()
133 * @param array $users User ID numbers list
135 function cache_users( $users ) {
139 foreach($users as $id) {
141 if (wp_cache_get($id, 'users')) {
142 // seems to be cached already
148 if ( 0 == count($clean) )
151 $list = implode(',', $clean);
153 $results = $wpdb->get_results("SELECT * FROM $wpdb->users WHERE ID IN ($list)");
155 _fill_many_users($results);
159 if ( !function_exists('get_user_by') ) :
161 * Retrieve user info by a given field
165 * @param string $field The field to retrieve the user with. id | slug | email | login
166 * @param int|string $value A value for $field. A user ID, slug, email address, or login name.
167 * @return bool|object False on failure, User DB row object
169 function get_user_by($field, $value) {
174 return get_userdata($value);
177 $user_id = wp_cache_get($value, 'userslugs');
178 $field = 'user_nicename';
181 $user_id = wp_cache_get($value, 'useremail');
182 $field = 'user_email';
185 $value = sanitize_user( $value );
186 $user_id = wp_cache_get($value, 'userlogins');
187 $field = 'user_login';
193 if ( false !== $user_id )
194 return get_userdata($user_id);
196 if ( !$user = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->users WHERE $field = %s", $value) ) )
205 if ( !function_exists('get_userdatabylogin') ) :
207 * Retrieve user info by login name.
211 * @param string $user_login User's username
212 * @return bool|object False on failure, User DB row object
214 function get_userdatabylogin($user_login) {
215 return get_user_by('login', $user_login);
219 if ( !function_exists('get_user_by_email') ) :
221 * Retrieve user info by email.
225 * @param string $email User's email address
226 * @return bool|object False on failure, User DB row object
228 function get_user_by_email($email) {
229 return get_user_by('email', $email);
233 if ( !function_exists( 'wp_mail' ) ) :
235 * Send mail, similar to PHP's mail
237 * A true return value does not automatically mean that the user received the
238 * email successfully. It just only means that the method used was able to
239 * process the request without any errors.
241 * Using the two 'wp_mail_from' and 'wp_mail_from_name' hooks allow from
242 * creating a from address like 'Name <email@address.com>' when both are set. If
243 * just 'wp_mail_from' is set, then just the email address will be used with no
246 * The default content type is 'text/plain' which does not allow using HTML.
247 * However, you can set the content type of the email by using the
248 * 'wp_mail_content_type' filter.
250 * The default charset is based on the charset used on the blog. The charset can
251 * be set using the 'wp_mail_charset' filter.
254 * @uses apply_filters() Calls 'wp_mail' hook on an array of all of the parameters.
255 * @uses apply_filters() Calls 'wp_mail_from' hook to get the from email address.
256 * @uses apply_filters() Calls 'wp_mail_from_name' hook to get the from address name.
257 * @uses apply_filters() Calls 'wp_mail_content_type' hook to get the email content type.
258 * @uses apply_filters() Calls 'wp_mail_charset' hook to get the email charset
259 * @uses do_action_ref_array() Calls 'phpmailer_init' hook on the reference to
264 * @param string|array $to Array or comma-separated list of email addresses to send message.
265 * @param string $subject Email subject
266 * @param string $message Message contents
267 * @param string|array $headers Optional. Additional headers.
268 * @param string|array $attachments Optional. Files to attach.
269 * @return bool Whether the email contents were sent successfully.
271 function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() ) {
272 // Compact the input, apply the filters, and extract them back out
273 extract( apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) ) );
275 if ( !is_array($attachments) )
276 $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) );
280 // (Re)create it, if it's gone missing
281 if ( !is_object( $phpmailer ) || !is_a( $phpmailer, 'PHPMailer' ) ) {
282 require_once ABSPATH . WPINC . '/class-phpmailer.php';
283 require_once ABSPATH . WPINC . '/class-smtp.php';
284 $phpmailer = new PHPMailer( true );
288 if ( empty( $headers ) ) {
291 if ( !is_array( $headers ) ) {
292 // Explode the headers out, so this function can take both
293 // string headers and an array of headers.
294 $tempheaders = explode( "\n", str_replace( "\r\n", "\n", $headers ) );
296 $tempheaders = $headers;
302 // If it's actually got contents
303 if ( !empty( $tempheaders ) ) {
304 // Iterate through the raw headers
305 foreach ( (array) $tempheaders as $header ) {
306 if ( strpos($header, ':') === false ) {
307 if ( false !== stripos( $header, 'boundary=' ) ) {
308 $parts = preg_split('/boundary=/i', trim( $header ) );
309 $boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) );
314 list( $name, $content ) = explode( ':', trim( $header ), 2 );
317 $name = trim( $name );
318 $content = trim( $content );
320 switch ( strtolower( $name ) ) {
321 // Mainly for legacy -- process a From: header if it's there
323 if ( strpos($content, '<' ) !== false ) {
324 // So... making my life hard again?
325 $from_name = substr( $content, 0, strpos( $content, '<' ) - 1 );
326 $from_name = str_replace( '"', '', $from_name );
327 $from_name = trim( $from_name );
329 $from_email = substr( $content, strpos( $content, '<' ) + 1 );
330 $from_email = str_replace( '>', '', $from_email );
331 $from_email = trim( $from_email );
333 $from_email = trim( $content );
337 if ( strpos( $content, ';' ) !== false ) {
338 list( $type, $charset ) = explode( ';', $content );
339 $content_type = trim( $type );
340 if ( false !== stripos( $charset, 'charset=' ) ) {
341 $charset = trim( str_replace( array( 'charset=', '"' ), '', $charset ) );
342 } elseif ( false !== stripos( $charset, 'boundary=' ) ) {
343 $boundary = trim( str_replace( array( 'BOUNDARY=', 'boundary=', '"' ), '', $charset ) );
347 $content_type = trim( $content );
351 $cc = array_merge( (array) $cc, explode( ',', $content ) );
354 $bcc = array_merge( (array) $bcc, explode( ',', $content ) );
357 // Add it to our grand headers array
358 $headers[trim( $name )] = trim( $content );
365 // Empty out the values that may be set
366 $phpmailer->ClearAddresses();
367 $phpmailer->ClearAllRecipients();
368 $phpmailer->ClearAttachments();
369 $phpmailer->ClearBCCs();
370 $phpmailer->ClearCCs();
371 $phpmailer->ClearCustomHeaders();
372 $phpmailer->ClearReplyTos();
374 // From email and name
375 // If we don't have a name from the input headers
376 if ( !isset( $from_name ) )
377 $from_name = 'WordPress';
379 /* If we don't have an email from the input headers default to wordpress@$sitename
380 * Some hosts will block outgoing mail from this address if it doesn't exist but
381 * there's no easy alternative. Defaulting to admin_email might appear to be another
382 * option but some hosts may refuse to relay mail from an unknown domain. See
383 * http://trac.wordpress.org/ticket/5007.
386 if ( !isset( $from_email ) ) {
387 // Get the site domain and get rid of www.
388 $sitename = strtolower( $_SERVER['SERVER_NAME'] );
389 if ( substr( $sitename, 0, 4 ) == 'www.' ) {
390 $sitename = substr( $sitename, 4 );
393 $from_email = 'wordpress@' . $sitename;
396 // Plugin authors can override the potentially troublesome default
397 $phpmailer->From = apply_filters( 'wp_mail_from' , $from_email );
398 $phpmailer->FromName = apply_filters( 'wp_mail_from_name', $from_name );
400 // Set destination addresses
401 if ( !is_array( $to ) )
402 $to = explode( ',', $to );
404 foreach ( (array) $to as $recipient ) {
406 // Break $recipient into name and address parts if in the format "Foo <bar@baz.com>"
407 $recipient_name = '';
408 if( preg_match( '/(.+)\s?<(.+)>/', $recipient, $matches ) ) {
409 if ( count( $matches ) == 3 ) {
410 $recipient_name = $matches[1];
411 $recipient = $matches[2];
414 $phpmailer->AddAddress( trim( $recipient ), $recipient_name);
415 } catch ( phpmailerException $e ) {
420 // Set mail's subject and body
421 $phpmailer->Subject = $subject;
422 $phpmailer->Body = $message;
424 // Add any CC and BCC recipients
425 if ( !empty( $cc ) ) {
426 foreach ( (array) $cc as $recipient ) {
428 // Break $recipient into name and address parts if in the format "Foo <bar@baz.com>"
429 $recipient_name = '';
430 if( preg_match( '/(.+)\s?<(.+)>/', $recipient, $matches ) ) {
431 if ( count( $matches ) == 3 ) {
432 $recipient_name = $matches[1];
433 $recipient = $matches[2];
436 $phpmailer->AddCc( trim($recipient), $recipient_name );
437 } catch ( phpmailerException $e ) {
443 if ( !empty( $bcc ) ) {
444 foreach ( (array) $bcc as $recipient) {
446 // Break $recipient into name and address parts if in the format "Foo <bar@baz.com>"
447 $recipient_name = '';
448 if( preg_match( '/(.+)\s?<(.+)>/', $recipient, $matches ) ) {
449 if ( count( $matches ) == 3 ) {
450 $recipient_name = $matches[1];
451 $recipient = $matches[2];
454 $phpmailer->AddBcc( trim($recipient), $recipient_name );
455 } catch ( phpmailerException $e ) {
461 // Set to use PHP's mail()
462 $phpmailer->IsMail();
464 // Set Content-Type and charset
465 // If we don't have a content-type from the input headers
466 if ( !isset( $content_type ) )
467 $content_type = 'text/plain';
469 $content_type = apply_filters( 'wp_mail_content_type', $content_type );
471 $phpmailer->ContentType = $content_type;
473 // Set whether it's plaintext, depending on $content_type
474 if ( 'text/html' == $content_type )
475 $phpmailer->IsHTML( true );
477 // If we don't have a charset from the input headers
478 if ( !isset( $charset ) )
479 $charset = get_bloginfo( 'charset' );
481 // Set the content-type and charset
482 $phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset );
484 // Set custom headers
485 if ( !empty( $headers ) ) {
486 foreach( (array) $headers as $name => $content ) {
487 $phpmailer->AddCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) );
490 if ( false !== stripos( $content_type, 'multipart' ) && ! empty($boundary) )
491 $phpmailer->AddCustomHeader( sprintf( "Content-Type: %s;\n\t boundary=\"%s\"", $content_type, $boundary ) );
494 if ( !empty( $attachments ) ) {
495 foreach ( $attachments as $attachment ) {
497 $phpmailer->AddAttachment($attachment);
498 } catch ( phpmailerException $e ) {
504 do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) );
509 } catch ( phpmailerException $e ) {
517 if ( !function_exists('wp_authenticate') ) :
519 * Checks a user's login information and logs them in if it checks out.
523 * @param string $username User's username
524 * @param string $password User's password
525 * @return WP_Error|WP_User WP_User object if login successful, otherwise WP_Error object.
527 function wp_authenticate($username, $password) {
528 $username = sanitize_user($username);
529 $password = trim($password);
531 $user = apply_filters('authenticate', null, $username, $password);
533 if ( $user == null ) {
534 // TODO what should the error message be? (Or would these even happen?)
535 // Only needed if all authentication handlers fail to return anything.
536 $user = new WP_Error('authentication_failed', __('<strong>ERROR</strong>: Invalid username or incorrect password.'));
539 $ignore_codes = array('empty_username', 'empty_password');
541 if (is_wp_error($user) && !in_array($user->get_error_code(), $ignore_codes) ) {
542 do_action('wp_login_failed', $username);
549 if ( !function_exists('wp_logout') ) :
551 * Log the current user out.
555 function wp_logout() {
556 wp_clear_auth_cookie();
557 do_action('wp_logout');
561 if ( !function_exists('wp_validate_auth_cookie') ) :
563 * Validates authentication cookie.
565 * The checks include making sure that the authentication cookie is set and
566 * pulling in the contents (if $cookie is not used).
568 * Makes sure the cookie is not expired. Verifies the hash in cookie is what is
569 * should be and compares the two.
573 * @param string $cookie Optional. If used, will validate contents instead of cookie's
574 * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in
575 * @return bool|int False if invalid cookie, User ID if valid.
577 function wp_validate_auth_cookie($cookie = '', $scheme = '') {
578 if ( ! $cookie_elements = wp_parse_auth_cookie($cookie, $scheme) ) {
579 do_action('auth_cookie_malformed', $cookie, $scheme);
583 extract($cookie_elements, EXTR_OVERWRITE);
585 $expired = $expiration;
587 // Allow a grace period for POST and AJAX requests
588 if ( defined('DOING_AJAX') || 'POST' == $_SERVER['REQUEST_METHOD'] )
591 // Quick check to see if an honest cookie has expired
592 if ( $expired < time() ) {
593 do_action('auth_cookie_expired', $cookie_elements);
597 $user = get_userdatabylogin($username);
599 do_action('auth_cookie_bad_username', $cookie_elements);
603 $pass_frag = substr($user->user_pass, 8, 4);
605 $key = wp_hash($username . $pass_frag . '|' . $expiration, $scheme);
606 $hash = hash_hmac('md5', $username . '|' . $expiration, $key);
608 if ( $hmac != $hash ) {
609 do_action('auth_cookie_bad_hash', $cookie_elements);
613 if ( $expiration < time() ) // AJAX/POST grace period set above
614 $GLOBALS['login_grace_period'] = 1;
616 do_action('auth_cookie_valid', $cookie_elements, $user);
622 if ( !function_exists('wp_generate_auth_cookie') ) :
624 * Generate authentication cookie contents.
627 * @uses apply_filters() Calls 'auth_cookie' hook on $cookie contents, User ID
628 * and expiration of cookie.
630 * @param int $user_id User ID
631 * @param int $expiration Cookie expiration in seconds
632 * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in
633 * @return string Authentication cookie contents
635 function wp_generate_auth_cookie($user_id, $expiration, $scheme = 'auth') {
636 $user = get_userdata($user_id);
638 $pass_frag = substr($user->user_pass, 8, 4);
640 $key = wp_hash($user->user_login . $pass_frag . '|' . $expiration, $scheme);
641 $hash = hash_hmac('md5', $user->user_login . '|' . $expiration, $key);
643 $cookie = $user->user_login . '|' . $expiration . '|' . $hash;
645 return apply_filters('auth_cookie', $cookie, $user_id, $expiration, $scheme);
649 if ( !function_exists('wp_parse_auth_cookie') ) :
651 * Parse a cookie into its components
655 * @param string $cookie
656 * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in
657 * @return array Authentication cookie components
659 function wp_parse_auth_cookie($cookie = '', $scheme = '') {
660 if ( empty($cookie) ) {
663 $cookie_name = AUTH_COOKIE;
666 $cookie_name = SECURE_AUTH_COOKIE;
669 $cookie_name = LOGGED_IN_COOKIE;
673 $cookie_name = SECURE_AUTH_COOKIE;
674 $scheme = 'secure_auth';
676 $cookie_name = AUTH_COOKIE;
681 if ( empty($_COOKIE[$cookie_name]) )
683 $cookie = $_COOKIE[$cookie_name];
686 $cookie_elements = explode('|', $cookie);
687 if ( count($cookie_elements) != 3 )
690 list($username, $expiration, $hmac) = $cookie_elements;
692 return compact('username', 'expiration', 'hmac', 'scheme');
696 if ( !function_exists('wp_set_auth_cookie') ) :
698 * Sets the authentication cookies based User ID.
700 * The $remember parameter increases the time that the cookie will be kept. The
701 * default the cookie is kept without remembering is two days. When $remember is
702 * set, the cookies will be kept for 14 days or two weeks.
706 * @param int $user_id User ID
707 * @param bool $remember Whether to remember the user
709 function wp_set_auth_cookie($user_id, $remember = false, $secure = '') {
711 $expiration = $expire = time() + apply_filters('auth_cookie_expiration', 1209600, $user_id, $remember);
713 $expiration = time() + apply_filters('auth_cookie_expiration', 172800, $user_id, $remember);
717 if ( '' === $secure )
720 $secure = apply_filters('secure_auth_cookie', $secure, $user_id);
721 $secure_logged_in_cookie = apply_filters('secure_logged_in_cookie', false, $user_id, $secure);
724 $auth_cookie_name = SECURE_AUTH_COOKIE;
725 $scheme = 'secure_auth';
727 $auth_cookie_name = AUTH_COOKIE;
731 $auth_cookie = wp_generate_auth_cookie($user_id, $expiration, $scheme);
732 $logged_in_cookie = wp_generate_auth_cookie($user_id, $expiration, 'logged_in');
734 do_action('set_auth_cookie', $auth_cookie, $expire, $expiration, $user_id, $scheme);
735 do_action('set_logged_in_cookie', $logged_in_cookie, $expire, $expiration, $user_id, 'logged_in');
737 setcookie($auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN, $secure, true);
738 setcookie($auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, $secure, true);
739 setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true);
740 if ( COOKIEPATH != SITECOOKIEPATH )
741 setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true);
745 if ( !function_exists('wp_clear_auth_cookie') ) :
747 * Removes all of the cookies associated with authentication.
751 function wp_clear_auth_cookie() {
752 do_action('clear_auth_cookie');
754 setcookie(AUTH_COOKIE, ' ', time() - 31536000, ADMIN_COOKIE_PATH, COOKIE_DOMAIN);
755 setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, ADMIN_COOKIE_PATH, COOKIE_DOMAIN);
756 setcookie(AUTH_COOKIE, ' ', time() - 31536000, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN);
757 setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN);
758 setcookie(LOGGED_IN_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
759 setcookie(LOGGED_IN_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
762 setcookie(AUTH_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
763 setcookie(AUTH_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
764 setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
765 setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
767 // Even older cookies
768 setcookie(USER_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
769 setcookie(PASS_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN);
770 setcookie(USER_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
771 setcookie(PASS_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN);
775 if ( !function_exists('is_user_logged_in') ) :
777 * Checks if the current visitor is a logged in user.
781 * @return bool True if user is logged in, false if not logged in.
783 function is_user_logged_in() {
784 $user = wp_get_current_user();
786 if ( $user->id == 0 )
793 if ( !function_exists('auth_redirect') ) :
795 * Checks if a user is logged in, if not it redirects them to the login page.
799 function auth_redirect() {
800 // Checks if a user is logged in, if not redirects them to the login page
802 $secure = ( is_ssl() || force_ssl_admin() );
804 $secure = apply_filters('secure_auth_redirect', $secure);
806 // If https is required and request is http, redirect
807 if ( $secure && !is_ssl() && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) {
808 if ( 0 === strpos($_SERVER['REQUEST_URI'], 'http') ) {
809 wp_redirect(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI']));
812 wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
817 if ( is_user_admin() )
818 $scheme = 'logged_in';
820 $scheme = apply_filters( 'auth_redirect_scheme', '' );
822 if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) {
823 do_action('auth_redirect', $user_id);
825 // If the user wants ssl but the session is not ssl, redirect.
826 if ( !$secure && get_user_option('use_ssl', $user_id) && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) {
827 if ( 0 === strpos($_SERVER['REQUEST_URI'], 'http') ) {
828 wp_redirect(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI']));
831 wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
836 return; // The cookie is good so we're done
839 // The cookie is no good so force login
847 $redirect = ( strpos($_SERVER['REQUEST_URI'], '/options.php') && wp_get_referer() ) ? wp_get_referer() : $proto . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
849 $login_url = wp_login_url($redirect, true);
851 wp_redirect($login_url);
856 if ( !function_exists('check_admin_referer') ) :
858 * Makes sure that a user was referred from another admin page.
860 * To avoid security exploits.
863 * @uses do_action() Calls 'check_admin_referer' on $action.
865 * @param string $action Action nonce
866 * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)
868 function check_admin_referer($action = -1, $query_arg = '_wpnonce') {
870 _doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2' );
872 $adminurl = strtolower(admin_url());
873 $referer = strtolower(wp_get_referer());
874 $result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false;
875 if ( !$result && !(-1 == $action && strpos($referer, $adminurl) === 0) ) {
876 wp_nonce_ays($action);
879 do_action('check_admin_referer', $action, $result);
883 if ( !function_exists('check_ajax_referer') ) :
885 * Verifies the AJAX request to prevent processing requests external of the blog.
889 * @param string $action Action nonce
890 * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5)
892 function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) {
894 $nonce = $_REQUEST[$query_arg];
896 $nonce = isset($_REQUEST['_ajax_nonce']) ? $_REQUEST['_ajax_nonce'] : $_REQUEST['_wpnonce'];
898 $result = wp_verify_nonce( $nonce, $action );
900 if ( $die && false == $result )
903 do_action('check_ajax_referer', $action, $result);
909 if ( !function_exists('wp_redirect') ) :
911 * Redirects to another page.
914 * @uses apply_filters() Calls 'wp_redirect' hook on $location and $status.
916 * @param string $location The path to redirect to
917 * @param int $status Status code to use
918 * @return bool False if $location is not set
920 function wp_redirect($location, $status = 302) {
923 $location = apply_filters('wp_redirect', $location, $status);
924 $status = apply_filters('wp_redirect_status', $status, $location);
926 if ( !$location ) // allows the wp_redirect filter to cancel a redirect
929 $location = wp_sanitize_redirect($location);
931 if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' )
932 status_header($status); // This causes problems on IIS and some FastCGI setups
934 header("Location: $location", true, $status);
938 if ( !function_exists('wp_sanitize_redirect') ) :
940 * Sanitizes a URL for use in a redirect.
944 * @return string redirect-sanitized URL
946 function wp_sanitize_redirect($location) {
947 $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!]|i', '', $location);
948 $location = wp_kses_no_null($location);
950 // remove %0d and %0a from location
951 $strip = array('%0d', '%0a', '%0D', '%0A');
952 $location = _deep_replace($strip, $location);
957 if ( !function_exists('wp_safe_redirect') ) :
959 * Performs a safe (local) redirect, using wp_redirect().
961 * Checks whether the $location is using an allowed host, if it has an absolute
962 * path. A plugin can therefore set or remove allowed host(s) to or from the
965 * If the host is not allowed, then the redirect is to wp-admin on the siteurl
966 * instead. This prevents malicious redirects which redirect to another host,
967 * but only used in a few places.
970 * @uses wp_validate_redirect() To validate the redirect is to an allowed host.
972 * @return void Does not return anything
974 function wp_safe_redirect($location, $status = 302) {
976 // Need to look at the URL the way it will end up in wp_redirect()
977 $location = wp_sanitize_redirect($location);
979 $location = wp_validate_redirect($location, admin_url());
981 wp_redirect($location, $status);
985 if ( !function_exists('wp_validate_redirect') ) :
987 * Validates a URL for use in a redirect.
989 * Checks whether the $location is using an allowed host, if it has an absolute
990 * path. A plugin can therefore set or remove allowed host(s) to or from the
993 * If the host is not allowed, then the redirect is to $default supplied
996 * @uses apply_filters() Calls 'allowed_redirect_hosts' on an array containing
997 * WordPress host string and $location host string.
999 * @param string $location The redirect to validate
1000 * @param string $default The value to return is $location is not allowed
1001 * @return string redirect-sanitized URL
1003 function wp_validate_redirect($location, $default = '') {
1004 // browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//'
1005 if ( substr($location, 0, 2) == '//' )
1006 $location = 'http:' . $location;
1008 // In php 5 parse_url may fail if the URL query part contains http://, bug #38143
1009 $test = ( $cut = strpos($location, '?') ) ? substr( $location, 0, $cut ) : $location;
1011 $lp = parse_url($test);
1013 // Give up if malformed URL
1014 if ( false === $lp )
1017 // Allow only http and https schemes. No data:, etc.
1018 if ( isset($lp['scheme']) && !('http' == $lp['scheme'] || 'https' == $lp['scheme']) )
1021 // Reject if scheme is set but host is not. This catches urls like https:host.com for which parse_url does not set the host field.
1022 if ( isset($lp['scheme']) && !isset($lp['host']) )
1025 $wpp = parse_url(home_url());
1027 $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '');
1029 if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) )
1030 $location = $default;
1036 if ( ! function_exists('wp_notify_postauthor') ) :
1038 * Notify an author of a comment/trackback/pingback to one of their posts.
1042 * @param int $comment_id Comment ID
1043 * @param string $comment_type Optional. The comment type either 'comment' (default), 'trackback', or 'pingback'
1044 * @return bool False if user email does not exist. True on completion.
1046 function wp_notify_postauthor( $comment_id, $comment_type = '' ) {
1047 $comment = get_comment( $comment_id );
1048 $post = get_post( $comment->comment_post_ID );
1049 $author = get_userdata( $post->post_author );
1051 // The comment was left by the author
1052 if ( $comment->user_id == $post->post_author )
1055 // The author moderated a comment on his own post
1056 if ( $post->post_author == get_current_user_id() )
1059 // If there's no email to send the comment to
1060 if ( '' == $author->user_email )
1063 $comment_author_domain = @gethostbyaddr($comment->comment_author_IP);
1065 // The blogname option is escaped with esc_html on the way into the database in sanitize_option
1066 // we want to reverse this for the plain text arena of emails.
1067 $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
1069 if ( empty( $comment_type ) ) $comment_type = 'comment';
1071 if ('comment' == $comment_type) {
1072 $notify_message = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n";
1073 /* translators: 1: comment author, 2: author IP, 3: author domain */
1074 $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1075 $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
1076 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1077 $notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";
1078 $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
1079 $notify_message .= __('You can see all comments on this post here: ') . "\r\n";
1080 /* translators: 1: blog name, 2: post title */
1081 $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title );
1082 } elseif ('trackback' == $comment_type) {
1083 $notify_message = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n";
1084 /* translators: 1: website name, 2: author IP, 3: author domain */
1085 $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1086 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1087 $notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
1088 $notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n";
1089 /* translators: 1: blog name, 2: post title */
1090 $subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title );
1091 } elseif ('pingback' == $comment_type) {
1092 $notify_message = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n";
1093 /* translators: 1: comment author, 2: author IP, 3: author domain */
1094 $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1095 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1096 $notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n";
1097 $notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n";
1098 /* translators: 1: blog name, 2: post title */
1099 $subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title );
1101 $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
1102 $notify_message .= sprintf( __('Permalink: %s'), get_permalink( $comment->comment_post_ID ) . '#comment-' . $comment_id ) . "\r\n";
1103 if ( EMPTY_TRASH_DAYS )
1104 $notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";
1106 $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";
1107 $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";
1109 $wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));
1111 if ( '' == $comment->comment_author ) {
1112 $from = "From: \"$blogname\" <$wp_email>";
1113 if ( '' != $comment->comment_author_email )
1114 $reply_to = "Reply-To: $comment->comment_author_email";
1116 $from = "From: \"$comment->comment_author\" <$wp_email>";
1117 if ( '' != $comment->comment_author_email )
1118 $reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>";
1121 $message_headers = "$from\n"
1122 . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
1124 if ( isset($reply_to) )
1125 $message_headers .= $reply_to . "\n";
1127 $notify_message = apply_filters('comment_notification_text', $notify_message, $comment_id);
1128 $subject = apply_filters('comment_notification_subject', $subject, $comment_id);
1129 $message_headers = apply_filters('comment_notification_headers', $message_headers, $comment_id);
1131 @wp_mail( $author->user_email, $subject, $notify_message, $message_headers );
1137 if ( !function_exists('wp_notify_moderator') ) :
1139 * Notifies the moderator of the blog about a new comment that is awaiting approval.
1144 * @param int $comment_id Comment ID
1145 * @return bool Always returns true
1147 function wp_notify_moderator($comment_id) {
1150 if ( 0 == get_option( 'moderation_notify' ) )
1153 $comment = get_comment($comment_id);
1154 $post = get_post($comment->comment_post_ID);
1155 $user = get_userdata( $post->post_author );
1156 // Send to the administation and to the post author if the author can modify the comment.
1157 $email_to = array( get_option('admin_email') );
1158 if ( user_can($user->ID, 'edit_comment', $comment_id) && !empty($user->user_email) && ( get_option('admin_email') != $user->user_email) )
1159 $email_to[] = $user->user_email;
1161 $comment_author_domain = @gethostbyaddr($comment->comment_author_IP);
1162 $comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");
1164 // The blogname option is escaped with esc_html on the way into the database in sanitize_option
1165 // we want to reverse this for the plain text arena of emails.
1166 $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
1168 switch ($comment->comment_type)
1171 $notify_message = sprintf( __('A new trackback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
1172 $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
1173 $notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1174 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1175 $notify_message .= __('Trackback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
1178 $notify_message = sprintf( __('A new pingback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
1179 $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
1180 $notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1181 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1182 $notify_message .= __('Pingback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
1185 $notify_message = sprintf( __('A new comment on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n";
1186 $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
1187 $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
1188 $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
1189 $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n";
1190 $notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n";
1191 $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
1195 $notify_message .= sprintf( __('Approve it: %s'), admin_url("comment.php?action=approve&c=$comment_id") ) . "\r\n";
1196 if ( EMPTY_TRASH_DAYS )
1197 $notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n";
1199 $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";
1200 $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";
1202 $notify_message .= sprintf( _n('Currently %s comment is waiting for approval. Please visit the moderation panel:',
1203 'Currently %s comments are waiting for approval. Please visit the moderation panel:', $comments_waiting), number_format_i18n($comments_waiting) ) . "\r\n";
1204 $notify_message .= admin_url("edit-comments.php?comment_status=moderated") . "\r\n";
1206 $subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), $blogname, $post->post_title );
1207 $message_headers = '';
1209 $notify_message = apply_filters('comment_moderation_text', $notify_message, $comment_id);
1210 $subject = apply_filters('comment_moderation_subject', $subject, $comment_id);
1211 $message_headers = apply_filters('comment_moderation_headers', $message_headers);
1213 foreach ( $email_to as $email )
1214 @wp_mail($email, $subject, $notify_message, $message_headers);
1220 if ( !function_exists('wp_password_change_notification') ) :
1222 * Notify the blog admin of a user changing password, normally via email.
1226 * @param object $user User Object
1228 function wp_password_change_notification(&$user) {
1229 // send a copy of password change notification to the admin
1230 // but check to see if it's the admin whose password we're changing, and skip this
1231 if ( $user->user_email != get_option('admin_email') ) {
1232 $message = sprintf(__('Password Lost and Changed for user: %s'), $user->user_login) . "\r\n";
1233 // The blogname option is escaped with esc_html on the way into the database in sanitize_option
1234 // we want to reverse this for the plain text arena of emails.
1235 $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
1236 wp_mail(get_option('admin_email'), sprintf(__('[%s] Password Lost/Changed'), $blogname), $message);
1241 if ( !function_exists('wp_new_user_notification') ) :
1243 * Notify the blog admin of a new user, normally via email.
1247 * @param int $user_id User ID
1248 * @param string $plaintext_pass Optional. The user's plaintext password
1250 function wp_new_user_notification($user_id, $plaintext_pass = '') {
1251 $user = new WP_User($user_id);
1253 $user_login = stripslashes($user->user_login);
1254 $user_email = stripslashes($user->user_email);
1256 // The blogname option is escaped with esc_html on the way into the database in sanitize_option
1257 // we want to reverse this for the plain text arena of emails.
1258 $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES);
1260 $message = sprintf(__('New user registration on your site %s:'), $blogname) . "\r\n\r\n";
1261 $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
1262 $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n";
1264 @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), $blogname), $message);
1266 if ( empty($plaintext_pass) )
1269 $message = sprintf(__('Username: %s'), $user_login) . "\r\n";
1270 $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n";
1271 $message .= wp_login_url() . "\r\n";
1273 wp_mail($user_email, sprintf(__('[%s] Your username and password'), $blogname), $message);
1278 if ( !function_exists('wp_nonce_tick') ) :
1280 * Get the time-dependent variable for nonce creation.
1282 * A nonce has a lifespan of two ticks. Nonces in their second tick may be
1283 * updated, e.g. by autosave.
1289 function wp_nonce_tick() {
1290 $nonce_life = apply_filters('nonce_life', 86400);
1292 return ceil(time() / ( $nonce_life / 2 ));
1296 if ( !function_exists('wp_verify_nonce') ) :
1298 * Verify that correct nonce was used with time limit.
1300 * The user is given an amount of time to use the token, so therefore, since the
1301 * UID and $action remain the same, the independent variable is the time.
1305 * @param string $nonce Nonce that was used in the form to verify
1306 * @param string|int $action Should give context to what is taking place and be the same when nonce was created.
1307 * @return bool Whether the nonce check passed or failed.
1309 function wp_verify_nonce($nonce, $action = -1) {
1310 $user = wp_get_current_user();
1311 $uid = (int) $user->id;
1313 $i = wp_nonce_tick();
1315 // Nonce generated 0-12 hours ago
1316 if ( substr(wp_hash($i . $action . $uid, 'nonce'), -12, 10) == $nonce )
1318 // Nonce generated 12-24 hours ago
1319 if ( substr(wp_hash(($i - 1) . $action . $uid, 'nonce'), -12, 10) == $nonce )
1326 if ( !function_exists('wp_create_nonce') ) :
1328 * Creates a random, one time use token.
1332 * @param string|int $action Scalar value to add context to the nonce.
1333 * @return string The one use form token
1335 function wp_create_nonce($action = -1) {
1336 $user = wp_get_current_user();
1337 $uid = (int) $user->id;
1339 $i = wp_nonce_tick();
1341 return substr(wp_hash($i . $action . $uid, 'nonce'), -12, 10);
1345 if ( !function_exists('wp_salt') ) :
1347 * Get salt to add to hashes to help prevent attacks.
1349 * The secret key is located in two places: the database in case the secret key
1350 * isn't defined in the second place, which is in the wp-config.php file. If you
1351 * are going to set the secret key, then you must do so in the wp-config.php
1354 * The secret key in the database is randomly generated and will be appended to
1355 * the secret key that is in wp-config.php file in some instances. It is
1356 * important to have the secret key defined or changed in wp-config.php.
1358 * If you have installed WordPress 2.5 or later, then you will have the
1359 * SECRET_KEY defined in the wp-config.php already. You will want to change the
1360 * value in it because hackers will know what it is. If you have upgraded to
1361 * WordPress 2.5 or later version from a version before WordPress 2.5, then you
1362 * should add the constant to your wp-config.php file.
1364 * Below is an example of how the SECRET_KEY constant is defined with a value.
1365 * You must not copy the below example and paste into your wp-config.php. If you
1366 * need an example, then you can have a
1367 * {@link https://api.wordpress.org/secret-key/1.1/ secret key created} for you.
1370 * define('SECRET_KEY', 'mAry1HadA15|\/|b17w55w1t3asSn09w');
1373 * Salting passwords helps against tools which has stored hashed values of
1374 * common dictionary strings. The added values makes it harder to crack if given
1375 * salt string is not weak.
1378 * @link https://api.wordpress.org/secret-key/1.1/ Create a Secret Key for wp-config.php
1380 * @param string $scheme Authentication scheme
1381 * @return string Salt value
1383 function wp_salt($scheme = 'auth') {
1384 global $wp_default_secret_key;
1386 if ( defined('SECRET_KEY') && ('' != SECRET_KEY) && ( $wp_default_secret_key != SECRET_KEY) )
1387 $secret_key = SECRET_KEY;
1389 if ( 'auth' == $scheme ) {
1390 if ( defined('AUTH_KEY') && ('' != AUTH_KEY) && ( $wp_default_secret_key != AUTH_KEY) )
1391 $secret_key = AUTH_KEY;
1393 if ( defined('AUTH_SALT') && ('' != AUTH_SALT) && ( $wp_default_secret_key != AUTH_SALT) ) {
1395 } elseif ( defined('SECRET_SALT') && ('' != SECRET_SALT) && ( $wp_default_secret_key != SECRET_SALT) ) {
1396 $salt = SECRET_SALT;
1398 $salt = get_site_option('auth_salt');
1399 if ( empty($salt) ) {
1400 $salt = wp_generate_password( 64, true, true );
1401 update_site_option('auth_salt', $salt);
1404 } elseif ( 'secure_auth' == $scheme ) {
1405 if ( defined('SECURE_AUTH_KEY') && ('' != SECURE_AUTH_KEY) && ( $wp_default_secret_key != SECURE_AUTH_KEY) )
1406 $secret_key = SECURE_AUTH_KEY;
1408 if ( defined('SECURE_AUTH_SALT') && ('' != SECURE_AUTH_SALT) && ( $wp_default_secret_key != SECURE_AUTH_SALT) ) {
1409 $salt = SECURE_AUTH_SALT;
1411 $salt = get_site_option('secure_auth_salt');
1412 if ( empty($salt) ) {
1413 $salt = wp_generate_password( 64, true, true );
1414 update_site_option('secure_auth_salt', $salt);
1417 } elseif ( 'logged_in' == $scheme ) {
1418 if ( defined('LOGGED_IN_KEY') && ('' != LOGGED_IN_KEY) && ( $wp_default_secret_key != LOGGED_IN_KEY) )
1419 $secret_key = LOGGED_IN_KEY;
1421 if ( defined('LOGGED_IN_SALT') && ('' != LOGGED_IN_SALT) && ( $wp_default_secret_key != LOGGED_IN_SALT) ) {
1422 $salt = LOGGED_IN_SALT;
1424 $salt = get_site_option('logged_in_salt');
1425 if ( empty($salt) ) {
1426 $salt = wp_generate_password( 64, true, true );
1427 update_site_option('logged_in_salt', $salt);
1430 } elseif ( 'nonce' == $scheme ) {
1431 if ( defined('NONCE_KEY') && ('' != NONCE_KEY) && ( $wp_default_secret_key != NONCE_KEY) )
1432 $secret_key = NONCE_KEY;
1434 if ( defined('NONCE_SALT') && ('' != NONCE_SALT) && ( $wp_default_secret_key != NONCE_SALT) ) {
1437 $salt = get_site_option('nonce_salt');
1438 if ( empty($salt) ) {
1439 $salt = wp_generate_password( 64, true, true );
1440 update_site_option('nonce_salt', $salt);
1444 // ensure each auth scheme has its own unique salt
1445 $salt = hash_hmac('md5', $scheme, $secret_key);
1448 return apply_filters('salt', $secret_key . $salt, $scheme);
1452 if ( !function_exists('wp_hash') ) :
1454 * Get hash of given string.
1457 * @uses wp_salt() Get WordPress salt
1459 * @param string $data Plain text to hash
1460 * @return string Hash of $data
1462 function wp_hash($data, $scheme = 'auth') {
1463 $salt = wp_salt($scheme);
1465 return hash_hmac('md5', $data, $salt);
1469 if ( !function_exists('wp_hash_password') ) :
1471 * Create a hash (encrypt) of a plain text password.
1473 * For integration with other applications, this function can be overwritten to
1474 * instead use the other package password checking algorithm.
1477 * @global object $wp_hasher PHPass object
1478 * @uses PasswordHash::HashPassword
1480 * @param string $password Plain text user password to hash
1481 * @return string The hash string of the password
1483 function wp_hash_password($password) {
1486 if ( empty($wp_hasher) ) {
1487 require_once( ABSPATH . 'wp-includes/class-phpass.php');
1488 // By default, use the portable hash from phpass
1489 $wp_hasher = new PasswordHash(8, TRUE);
1492 return $wp_hasher->HashPassword($password);
1496 if ( !function_exists('wp_check_password') ) :
1498 * Checks the plaintext password against the encrypted Password.
1500 * Maintains compatibility between old version and the new cookie authentication
1501 * protocol using PHPass library. The $hash parameter is the encrypted password
1502 * and the function compares the plain text password when encypted similarly
1503 * against the already encrypted password to see if they match.
1505 * For integration with other applications, this function can be overwritten to
1506 * instead use the other package password checking algorithm.
1509 * @global object $wp_hasher PHPass object used for checking the password
1510 * against the $hash + $password
1511 * @uses PasswordHash::CheckPassword
1513 * @param string $password Plaintext user's password
1514 * @param string $hash Hash of the user's password to check against.
1515 * @return bool False, if the $password does not match the hashed password
1517 function wp_check_password($password, $hash, $user_id = '') {
1520 // If the hash is still md5...
1521 if ( strlen($hash) <= 32 ) {
1522 $check = ( $hash == md5($password) );
1523 if ( $check && $user_id ) {
1524 // Rehash using new hash.
1525 wp_set_password($password, $user_id);
1526 $hash = wp_hash_password($password);
1529 return apply_filters('check_password', $check, $password, $hash, $user_id);
1532 // If the stored hash is longer than an MD5, presume the
1533 // new style phpass portable hash.
1534 if ( empty($wp_hasher) ) {
1535 require_once( ABSPATH . 'wp-includes/class-phpass.php');
1536 // By default, use the portable hash from phpass
1537 $wp_hasher = new PasswordHash(8, TRUE);
1540 $check = $wp_hasher->CheckPassword($password, $hash);
1542 return apply_filters('check_password', $check, $password, $hash, $user_id);
1546 if ( !function_exists('wp_generate_password') ) :
1548 * Generates a random password drawn from the defined set of characters.
1552 * @param int $length The length of password to generate
1553 * @param bool $special_chars Whether to include standard special characters. Default true.
1554 * @param bool $extra_special_chars Whether to include other special characters. Used when
1555 * generating secret keys and salts. Default false.
1556 * @return string The random password
1558 function wp_generate_password( $length = 12, $special_chars = true, $extra_special_chars = false ) {
1559 $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
1560 if ( $special_chars )
1561 $chars .= '!@#$%^&*()';
1562 if ( $extra_special_chars )
1563 $chars .= '-_ []{}<>~`+=,.;:/?|';
1566 for ( $i = 0; $i < $length; $i++ ) {
1567 $password .= substr($chars, wp_rand(0, strlen($chars) - 1), 1);
1570 // random_password filter was previously in random_password function which was deprecated
1571 return apply_filters('random_password', $password);
1575 if ( !function_exists('wp_rand') ) :
1577 * Generates a random number
1581 * @param int $min Lower limit for the generated number (optional, default is 0)
1582 * @param int $max Upper limit for the generated number (optional, default is 4294967295)
1583 * @return int A random number between min and max
1585 function wp_rand( $min = 0, $max = 0 ) {
1588 // Reset $rnd_value after 14 uses
1589 // 32(md5) + 40(sha1) + 40(sha1) / 8 = 14 random numbers from $rnd_value
1590 if ( strlen($rnd_value) < 8 ) {
1591 if ( defined( 'WP_SETUP_CONFIG' ) )
1594 $seed = get_transient('random_seed');
1595 $rnd_value = md5( uniqid(microtime() . mt_rand(), true ) . $seed );
1596 $rnd_value .= sha1($rnd_value);
1597 $rnd_value .= sha1($rnd_value . $seed);
1598 $seed = md5($seed . $rnd_value);
1599 if ( ! defined( 'WP_SETUP_CONFIG' ) )
1600 set_transient('random_seed', $seed);
1603 // Take the first 8 digits for our value
1604 $value = substr($rnd_value, 0, 8);
1606 // Strip the first eight, leaving the remainder for the next call to wp_rand().
1607 $rnd_value = substr($rnd_value, 8);
1609 $value = abs(hexdec($value));
1611 // Reduce the value to be within the min - max range
1612 // 4294967295 = 0xffffffff = max random number
1614 $value = $min + (($max - $min + 1) * ($value / (4294967295 + 1)));
1616 return abs(intval($value));
1620 if ( !function_exists('wp_set_password') ) :
1622 * Updates the user's password with a new encrypted one.
1624 * For integration with other applications, this function can be overwritten to
1625 * instead use the other package password checking algorithm.
1628 * @uses $wpdb WordPress database object for queries
1629 * @uses wp_hash_password() Used to encrypt the user's password before passing to the database
1631 * @param string $password The plaintext new user password
1632 * @param int $user_id User ID
1634 function wp_set_password( $password, $user_id ) {
1637 $hash = wp_hash_password($password);
1638 $wpdb->update($wpdb->users, array('user_pass' => $hash, 'user_activation_key' => ''), array('ID' => $user_id) );
1640 wp_cache_delete($user_id, 'users');
1644 if ( !function_exists( 'get_avatar' ) ) :
1646 * Retrieve the avatar for a user who provided a user ID or email address.
1649 * @param int|string|object $id_or_email A user ID, email address, or comment object
1650 * @param int $size Size of the avatar image
1651 * @param string $default URL to a default image to use if no avatar is available
1652 * @param string $alt Alternate text to use in image tag. Defaults to blank
1653 * @return string <img> tag for the user's avatar
1655 function get_avatar( $id_or_email, $size = '96', $default = '', $alt = false ) {
1656 if ( ! get_option('show_avatars') )
1659 if ( false === $alt)
1662 $safe_alt = esc_attr( $alt );
1664 if ( !is_numeric($size) )
1668 if ( is_numeric($id_or_email) ) {
1669 $id = (int) $id_or_email;
1670 $user = get_userdata($id);
1672 $email = $user->user_email;
1673 } elseif ( is_object($id_or_email) ) {
1674 // No avatar for pingbacks or trackbacks
1675 $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) );
1676 if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) )
1679 if ( !empty($id_or_email->user_id) ) {
1680 $id = (int) $id_or_email->user_id;
1681 $user = get_userdata($id);
1683 $email = $user->user_email;
1684 } elseif ( !empty($id_or_email->comment_author_email) ) {
1685 $email = $id_or_email->comment_author_email;
1688 $email = $id_or_email;
1691 if ( empty($default) ) {
1692 $avatar_default = get_option('avatar_default');
1693 if ( empty($avatar_default) )
1694 $default = 'mystery';
1696 $default = $avatar_default;
1699 if ( !empty($email) )
1700 $email_hash = md5( strtolower( $email ) );
1703 $host = 'https://secure.gravatar.com';
1705 if ( !empty($email) )
1706 $host = sprintf( "http://%d.gravatar.com", ( hexdec( $email_hash[0] ) % 2 ) );
1708 $host = 'http://0.gravatar.com';
1711 if ( 'mystery' == $default )
1712 $default = "$host/avatar/ad516503a11cd5ca435acc9bb6523536?s={$size}"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com')
1713 elseif ( 'blank' == $default )
1714 $default = includes_url('images/blank.gif');
1715 elseif ( !empty($email) && 'gravatar_default' == $default )
1717 elseif ( 'gravatar_default' == $default )
1718 $default = "$host/avatar/s={$size}";
1719 elseif ( empty($email) )
1720 $default = "$host/avatar/?d=$default&s={$size}";
1721 elseif ( strpos($default, 'http://') === 0 )
1722 $default = add_query_arg( 's', $size, $default );
1724 if ( !empty($email) ) {
1725 $out = "$host/avatar/";
1726 $out .= $email_hash;
1727 $out .= '?s='.$size;
1728 $out .= '&d=' . urlencode( $default );
1730 $rating = get_option('avatar_rating');
1731 if ( !empty( $rating ) )
1732 $out .= "&r={$rating}";
1734 $avatar = "<img alt='{$safe_alt}' src='{$out}' class='avatar avatar-{$size} photo' height='{$size}' width='{$size}' />";
1736 $avatar = "<img alt='{$safe_alt}' src='{$default}' class='avatar avatar-{$size} photo avatar-default' height='{$size}' width='{$size}' />";
1739 return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default, $alt);
1743 if ( !function_exists( 'wp_text_diff' ) ) :
1745 * Displays a human readable HTML representation of the difference between two strings.
1747 * The Diff is available for getting the changes between versions. The output is
1748 * HTML, so the primary use is for displaying the changes. If the two strings
1749 * are equivalent, then an empty string will be returned.
1751 * The arguments supported and can be changed are listed below.
1753 * 'title' : Default is an empty string. Titles the diff in a manner compatible
1755 * 'title_left' : Default is an empty string. Change the HTML to the left of the
1757 * 'title_right' : Default is an empty string. Change the HTML to the right of
1761 * @see wp_parse_args() Used to change defaults to user defined settings.
1763 * @uses WP_Text_Diff_Renderer_Table
1765 * @param string $left_string "old" (left) version of string
1766 * @param string $right_string "new" (right) version of string
1767 * @param string|array $args Optional. Change 'title', 'title_left', and 'title_right' defaults.
1768 * @return string Empty string if strings are equivalent or HTML with differences.
1770 function wp_text_diff( $left_string, $right_string, $args = null ) {
1771 $defaults = array( 'title' => '', 'title_left' => '', 'title_right' => '' );
1772 $args = wp_parse_args( $args, $defaults );
1774 if ( !class_exists( 'WP_Text_Diff_Renderer_Table' ) )
1775 require( ABSPATH . WPINC . '/wp-diff.php' );
1777 $left_string = normalize_whitespace($left_string);
1778 $right_string = normalize_whitespace($right_string);
1780 $left_lines = split("\n", $left_string);
1781 $right_lines = split("\n", $right_string);
1783 $text_diff = new Text_Diff($left_lines, $right_lines);
1784 $renderer = new WP_Text_Diff_Renderer_Table();
1785 $diff = $renderer->render($text_diff);
1790 $r = "<table class='diff'>\n";
1791 $r .= "<col class='ltype' /><col class='content' /><col class='ltype' /><col class='content' />";
1793 if ( $args['title'] || $args['title_left'] || $args['title_right'] )
1795 if ( $args['title'] )
1796 $r .= "<tr class='diff-title'><th colspan='4'>$args[title]</th></tr>\n";
1797 if ( $args['title_left'] || $args['title_right'] ) {
1798 $r .= "<tr class='diff-sub-title'>\n";
1799 $r .= "\t<td></td><th>$args[title_left]</th>\n";
1800 $r .= "\t<td></td><th>$args[title_right]</th>\n";
1803 if ( $args['title'] || $args['title_left'] || $args['title_right'] )
1806 $r .= "<tbody>\n$diff\n</tbody>\n";