X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/177fd6fefd2e3d5a0ea6591c71d660cabdb3c1a4..245e789b234afa4525862e7a6e5e3c2e7a52ef20:/wp-includes/pluggable.php diff --git a/wp-includes/pluggable.php b/wp-includes/pluggable.php index 1a2bdc26..dae13a4a 100644 --- a/wp-includes/pluggable.php +++ b/wp-includes/pluggable.php @@ -1,42 +1,23 @@ ID) ) + if ( isset( $current_user ) && ( $current_user instanceof WP_User ) && ( $id == $current_user->ID ) ) return $current_user; - $current_user = new WP_User($id, $name); + $current_user = new WP_User( $id, $name ); - setup_userdata($current_user->ID); + setup_userdata( $current_user->ID ); - do_action('set_current_user'); + /** + * Fires after the current user is set. + * + * @since 2.0.1 + */ + do_action( 'set_current_user' ); return $current_user; } @@ -60,9 +46,9 @@ endif; if ( !function_exists('wp_get_current_user') ) : /** - * wp_get_current_user() - Retrieve the current user object + * Retrieve the current user object. * - * @since 2.0.4 + * @since 2.0.3 * * @return WP_User Current user WP_User object */ @@ -77,188 +63,180 @@ endif; if ( !function_exists('get_currentuserinfo') ) : /** - * get_currentuserinfo() - Populate global variables with information about the currently logged in user + * Populate global variables with information about the currently logged in user. * - * Will set the current user, if the current user is not set. The current - * user will be set to the logged in person. If no user is logged in, then - * it will set the current user to 0, which is invalid and won't have any - * permissions. + * Will set the current user, if the current user is not set. The current user + * will be set to the logged-in person. If no user is logged-in, then it will + * set the current user to 0, which is invalid and won't have any permissions. * * @since 0.71 + * * @uses $current_user Checks if the current user is set * @uses wp_validate_auth_cookie() Retrieves current logged in user. * - * @return bool|null False on XMLRPC Request and invalid auth cookie. Null when current user set + * @return bool|null False on XML-RPC Request and invalid auth cookie. Null when current user set. */ function get_currentuserinfo() { global $current_user; - if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST ) + if ( ! empty( $current_user ) ) { + if ( $current_user instanceof WP_User ) + return; + + // Upgrade stdClass to WP_User + if ( is_object( $current_user ) && isset( $current_user->ID ) ) { + $cur_id = $current_user->ID; + $current_user = null; + wp_set_current_user( $cur_id ); + return; + } + + // $current_user has a junk value. Force to WP_User with ID 0. + $current_user = null; + wp_set_current_user( 0 ); return false; + } - if ( ! empty($current_user) ) - return; + if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST ) { + wp_set_current_user( 0 ); + return false; + } - if ( ! $user = wp_validate_auth_cookie() ) { - wp_set_current_user(0); + /** + * Filter the current user. + * + * The default filters use this to determine the current user from the + * request's cookies, if available. + * + * Returning a value of false will effectively short-circuit setting + * the current user. + * + * @since 3.9.0 + * + * @param int|bool $user_id User ID if one has been determined, false otherwise. + */ + $user_id = apply_filters( 'determine_current_user', false ); + if ( ! $user_id ) { + wp_set_current_user( 0 ); return false; } - wp_set_current_user($user); + wp_set_current_user( $user_id ); } endif; if ( !function_exists('get_userdata') ) : /** - * get_userdata() - Retrieve user info by user ID + * Retrieve user info by user ID. * * @since 0.71 * * @param int $user_id User ID - * @return bool|object False on failure, User DB row object + * @return WP_User|bool WP_User object on success, false on failure. */ function get_userdata( $user_id ) { - global $wpdb; - - $user_id = absint($user_id); - if ( $user_id == 0 ) - return false; - - $user = wp_cache_get($user_id, 'users'); - - if ( $user ) - return $user; - - if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE ID = %d LIMIT 1", $user_id)) ) - return false; - - _fill_user($user); - - return $user; + return get_user_by( 'id', $user_id ); } endif; -if ( !function_exists('update_user_cache') ) : +if ( !function_exists('get_user_by') ) : /** - * update_user_cache() - Updates a users cache when overridden by a plugin - * - * Core function does nothing. + * Retrieve user info by a given field * - * @since 1.5 + * @since 2.8.0 * - * @return bool Only returns true + * @param string $field The field to retrieve the user with. id | slug | email | login + * @param int|string $value A value for $field. A user ID, slug, email address, or login name. + * @return WP_User|bool WP_User object on success, false on failure. */ -function update_user_cache() { - return true; -} -endif; +function get_user_by( $field, $value ) { + $userdata = WP_User::get_data_by( $field, $value ); -if ( !function_exists('get_userdatabylogin') ) : -/** - * get_userdatabylogin() - Retrieve user info by login name - * - * @since 0.71 - * - * @param string $user_login User's username - * @return bool|object False on failure, User DB row object - */ -function get_userdatabylogin($user_login) { - global $wpdb; - $user_login = sanitize_user( $user_login ); - - if ( empty( $user_login ) ) - return false; - - $user_id = wp_cache_get($user_login, 'userlogins'); - - $user = false; - if ( false !== $user_id ) - $user = wp_cache_get($user_id, 'users'); - - if ( false !== $user ) - return $user; - - if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_login = %s", $user_login)) ) + if ( !$userdata ) return false; - _fill_user($user); + $user = new WP_User; + $user->init( $userdata ); return $user; } endif; -if ( !function_exists('get_user_by_email') ) : +if ( !function_exists('cache_users') ) : /** - * get_user_by_email() - Retrieve user info by email + * Retrieve info for user lists to prevent multiple queries by get_userdata() * - * @since 2.5 + * @since 3.0.0 * - * @param string $email User's email address - * @return bool|object False on failure, User DB row object + * @param array $user_ids User ID numbers list */ -function get_user_by_email($email) { +function cache_users( $user_ids ) { global $wpdb; - $user_id = wp_cache_get($email, 'useremail'); - - $user = false; - if ( false !== $user_id ) - $user = wp_cache_get($user_id, 'users'); + $clean = _get_non_cached_ids( $user_ids, 'users' ); - if ( false !== $user ) - return $user; + if ( empty( $clean ) ) + return; - if ( !$user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_email = %s", $email)) ) - return false; + $list = implode( ',', $clean ); - _fill_user($user); + $users = $wpdb->get_results( "SELECT * FROM $wpdb->users WHERE ID IN ($list)" ); - return $user; + $ids = array(); + foreach ( $users as $user ) { + update_user_caches( $user ); + $ids[] = $user->ID; + } + update_meta_cache( 'user', $ids ); } endif; if ( !function_exists( 'wp_mail' ) ) : /** - * wp_mail() - Function to send mail, similar to PHP's mail + * Send mail, similar to PHP's mail * - * A true return value does not automatically mean that the - * user received the email successfully. It just only means - * that the method used was able to process the request - * without any errors. + * A true return value does not automatically mean that the user received the + * email successfully. It just only means that the method used was able to + * process the request without any errors. * - * Using the two 'wp_mail_from' and 'wp_mail_from_name' hooks - * allow from creating a from address like 'Name ' - * when both are set. If just 'wp_mail_from' is set, then just - * the email address will be used with no name. + * Using the two 'wp_mail_from' and 'wp_mail_from_name' hooks allow from + * creating a from address like 'Name ' when both are set. If + * just 'wp_mail_from' is set, then just the email address will be used with no + * name. * - * The default content type is 'text/plain' which does not - * allow using HTML. However, you can set the content type - * of the email by using the 'wp_mail_content_type' filter. + * The default content type is 'text/plain' which does not allow using HTML. + * However, you can set the content type of the email by using the + * 'wp_mail_content_type' filter. * - * The default charset is based on the charset used on the - * blog. The charset can be set using the 'wp_mail_charset' - * filter. + * The default charset is based on the charset used on the blog. The charset can + * be set using the 'wp_mail_charset' filter. * * @since 1.2.1 - * @uses apply_filters() Calls 'wp_mail' hook on an array of all of the parameters. - * @uses apply_filters() Calls 'wp_mail_from' hook to get the from email address. - * @uses apply_filters() Calls 'wp_mail_from_name' hook to get the from address name. - * @uses apply_filters() Calls 'wp_mail_content_type' hook to get the email content type. - * @uses apply_filters() Calls 'wp_mail_charset' hook to get the email charset - * @uses do_action_ref_array() Calls 'phpmailer_init' hook on the reference to - * phpmailer object. + * * @uses PHPMailer - * @ * - * @param string $to Email address to send message + * @param string|array $to Array or comma-separated list of email addresses to send message. * @param string $subject Email subject * @param string $message Message contents * @param string|array $headers Optional. Additional headers. + * @param string|array $attachments Optional. Files to attach. * @return bool Whether the email contents were sent successfully. */ -function wp_mail( $to, $subject, $message, $headers = '' ) { +function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() ) { // Compact the input, apply the filters, and extract them back out - extract( apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers' ) ) ); + + /** + * Filter the wp_mail() arguments. + * + * @since 2.2.0 + * + * @param array $args A compacted array of wp_mail() arguments, including the "to" email, + * subject, message, headers, and attachments values. + */ + extract( apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) ) ); + + if ( !is_array($attachments) ) + $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) ); global $phpmailer; @@ -266,77 +244,105 @@ function wp_mail( $to, $subject, $message, $headers = '' ) { if ( !is_object( $phpmailer ) || !is_a( $phpmailer, 'PHPMailer' ) ) { require_once ABSPATH . WPINC . '/class-phpmailer.php'; require_once ABSPATH . WPINC . '/class-smtp.php'; - $phpmailer = new PHPMailer(); + $phpmailer = new PHPMailer( true ); } // Headers if ( empty( $headers ) ) { $headers = array(); - } elseif ( !is_array( $headers ) ) { - // Explode the headers out, so this function can take both - // string headers and an array of headers. - $tempheaders = (array) explode( "\n", $headers ); + } else { + if ( !is_array( $headers ) ) { + // Explode the headers out, so this function can take both + // string headers and an array of headers. + $tempheaders = explode( "\n", str_replace( "\r\n", "\n", $headers ) ); + } else { + $tempheaders = $headers; + } $headers = array(); + $cc = array(); + $bcc = array(); // If it's actually got contents if ( !empty( $tempheaders ) ) { // Iterate through the raw headers - foreach ( $tempheaders as $header ) { - if ( strpos($header, ':') === false ) + foreach ( (array) $tempheaders as $header ) { + if ( strpos($header, ':') === false ) { + if ( false !== stripos( $header, 'boundary=' ) ) { + $parts = preg_split('/boundary=/i', trim( $header ) ); + $boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) ); + } continue; + } // Explode them out list( $name, $content ) = explode( ':', trim( $header ), 2 ); // Cleanup crew - $name = trim( $name ); + $name = trim( $name ); $content = trim( $content ); - // Mainly for legacy -- process a From: header if it's there - if ( 'from' == strtolower($name) ) { - if ( strpos($content, '<' ) !== false ) { - // So... making my life hard again? - $from_name = substr( $content, 0, strpos( $content, '<' ) - 1 ); - $from_name = str_replace( '"', '', $from_name ); - $from_name = trim( $from_name ); - - $from_email = substr( $content, strpos( $content, '<' ) + 1 ); - $from_email = str_replace( '>', '', $from_email ); - $from_email = trim( $from_email ); - } else { - $from_name = trim( $content ); - } - } elseif ( 'content-type' == strtolower($name) ) { - if ( strpos( $content,';' ) !== false ) { - list( $type, $charset ) = explode( ';', $content ); - $content_type = trim( $type ); - $charset = trim( str_replace( array( 'charset=', '"' ), '', $charset ) ); - } else { - $content_type = trim( $content ); - } - } else { - // Add it to our grand headers array - $headers[trim( $name )] = trim( $content ); + switch ( strtolower( $name ) ) { + // Mainly for legacy -- process a From: header if it's there + case 'from': + if ( strpos($content, '<' ) !== false ) { + // So... making my life hard again? + $from_name = substr( $content, 0, strpos( $content, '<' ) - 1 ); + $from_name = str_replace( '"', '', $from_name ); + $from_name = trim( $from_name ); + + $from_email = substr( $content, strpos( $content, '<' ) + 1 ); + $from_email = str_replace( '>', '', $from_email ); + $from_email = trim( $from_email ); + } else { + $from_email = trim( $content ); + } + break; + case 'content-type': + if ( strpos( $content, ';' ) !== false ) { + list( $type, $charset ) = explode( ';', $content ); + $content_type = trim( $type ); + if ( false !== stripos( $charset, 'charset=' ) ) { + $charset = trim( str_replace( array( 'charset=', '"' ), '', $charset ) ); + } elseif ( false !== stripos( $charset, 'boundary=' ) ) { + $boundary = trim( str_replace( array( 'BOUNDARY=', 'boundary=', '"' ), '', $charset ) ); + $charset = ''; + } + } else { + $content_type = trim( $content ); + } + break; + case 'cc': + $cc = array_merge( (array) $cc, explode( ',', $content ) ); + break; + case 'bcc': + $bcc = array_merge( (array) $bcc, explode( ',', $content ) ); + break; + default: + // Add it to our grand headers array + $headers[trim( $name )] = trim( $content ); + break; } } } } // Empty out the values that may be set - $phpmailer->ClearAddresses(); $phpmailer->ClearAllRecipients(); $phpmailer->ClearAttachments(); - $phpmailer->ClearBCCs(); - $phpmailer->ClearCCs(); $phpmailer->ClearCustomHeaders(); $phpmailer->ClearReplyTos(); // From email and name // If we don't have a name from the input headers - if ( !isset( $from_name ) ) { + if ( !isset( $from_name ) ) $from_name = 'WordPress'; - } - // If we don't have an email from the input headers + /* If we don't have an email from the input headers default to wordpress@$sitename + * Some hosts will block outgoing mail from this address if it doesn't exist but + * there's no easy alternative. Defaulting to admin_email might appear to be another + * option but some hosts may refuse to relay mail from an unknown domain. See + * http://trac.wordpress.org/ticket/5007. + */ + if ( !isset( $from_email ) ) { // Get the site domain and get rid of www. $sitename = strtolower( $_SERVER['SERVER_NAME'] ); @@ -347,158 +353,324 @@ function wp_mail( $to, $subject, $message, $headers = '' ) { $from_email = 'wordpress@' . $sitename; } - // Set the from name and email + /** + * Filter the email address to send from. + * + * @since 2.2.0 + * + * @param string $from_email Email address to send from. + */ $phpmailer->From = apply_filters( 'wp_mail_from', $from_email ); + + /** + * Filter the name to associate with the "from" email address. + * + * @since 2.3.0 + * + * @param string $from_name Name associated with the "from" email address. + */ $phpmailer->FromName = apply_filters( 'wp_mail_from_name', $from_name ); - // Set destination address - $phpmailer->AddAddress( $to ); + // Set destination addresses + if ( !is_array( $to ) ) + $to = explode( ',', $to ); + + foreach ( (array) $to as $recipient ) { + try { + // Break $recipient into name and address parts if in the format "Foo " + $recipient_name = ''; + if( preg_match( '/(.*)<(.+)>/', $recipient, $matches ) ) { + if ( count( $matches ) == 3 ) { + $recipient_name = $matches[1]; + $recipient = $matches[2]; + } + } + $phpmailer->AddAddress( $recipient, $recipient_name); + } catch ( phpmailerException $e ) { + continue; + } + } // Set mail's subject and body $phpmailer->Subject = $subject; - $phpmailer->Body = $message; + $phpmailer->Body = $message; + + // Add any CC and BCC recipients + if ( !empty( $cc ) ) { + foreach ( (array) $cc as $recipient ) { + try { + // Break $recipient into name and address parts if in the format "Foo " + $recipient_name = ''; + if( preg_match( '/(.*)<(.+)>/', $recipient, $matches ) ) { + if ( count( $matches ) == 3 ) { + $recipient_name = $matches[1]; + $recipient = $matches[2]; + } + } + $phpmailer->AddCc( $recipient, $recipient_name ); + } catch ( phpmailerException $e ) { + continue; + } + } + } + + if ( !empty( $bcc ) ) { + foreach ( (array) $bcc as $recipient) { + try { + // Break $recipient into name and address parts if in the format "Foo " + $recipient_name = ''; + if( preg_match( '/(.*)<(.+)>/', $recipient, $matches ) ) { + if ( count( $matches ) == 3 ) { + $recipient_name = $matches[1]; + $recipient = $matches[2]; + } + } + $phpmailer->AddBcc( $recipient, $recipient_name ); + } catch ( phpmailerException $e ) { + continue; + } + } + } // Set to use PHP's mail() $phpmailer->IsMail(); // Set Content-Type and charset // If we don't have a content-type from the input headers - if ( !isset( $content_type ) ) { + if ( !isset( $content_type ) ) $content_type = 'text/plain'; - } + /** + * Filter the wp_mail() content type. + * + * @since 2.3.0 + * + * @param string $content_type Default wp_mail() content type. + */ $content_type = apply_filters( 'wp_mail_content_type', $content_type ); - // Set whether it's plaintext or not, depending on $content_type - if ( $content_type == 'text/html' ) { + $phpmailer->ContentType = $content_type; + + // Set whether it's plaintext, depending on $content_type + if ( 'text/html' == $content_type ) $phpmailer->IsHTML( true ); - } else { - $phpmailer->IsHTML( false ); - } // If we don't have a charset from the input headers - if ( !isset( $charset ) ) { + if ( !isset( $charset ) ) $charset = get_bloginfo( 'charset' ); - } // Set the content-type and charset + + /** + * Filter the default wp_mail() charset. + * + * @since 2.3.0 + * + * @param string $charset Default email charset. + */ $phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset ); // Set custom headers if ( !empty( $headers ) ) { - foreach ( $headers as $name => $content ) { + foreach( (array) $headers as $name => $content ) { $phpmailer->AddCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) ); } + + if ( false !== stripos( $content_type, 'multipart' ) && ! empty($boundary) ) + $phpmailer->AddCustomHeader( sprintf( "Content-Type: %s;\n\t boundary=\"%s\"", $content_type, $boundary ) ); } + if ( !empty( $attachments ) ) { + foreach ( $attachments as $attachment ) { + try { + $phpmailer->AddAttachment($attachment); + } catch ( phpmailerException $e ) { + continue; + } + } + } + + /** + * Fires after PHPMailer is initialized. + * + * @since 2.2.0 + * + * @param PHPMailer &$phpmailer The PHPMailer instance, passed by reference. + */ do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); // Send! - $result = @$phpmailer->Send(); - - return $result; + try { + return $phpmailer->Send(); + } catch ( phpmailerException $e ) { + return false; + } } endif; +if ( !function_exists('wp_authenticate') ) : /** - * wp_authenticate() - Checks a user's login information and logs them in if it checks out - * @since 2.5 + * Checks a user's login information and logs them in if it checks out. + * + * @since 2.5.0 * * @param string $username User's username * @param string $password User's password - * @return WP_Error|WP_User WP_User object if login successful, otherwise WP_Error object. + * @return WP_User|WP_Error WP_User object if login successful, otherwise WP_Error object. */ -if ( !function_exists('wp_authenticate') ) : function wp_authenticate($username, $password) { $username = sanitize_user($username); - - if ( '' == $username ) - return new WP_Error('empty_username', __('ERROR: The username field is empty.')); - - if ( '' == $password ) - return new WP_Error('empty_password', __('ERROR: The password field is empty.')); - - $user = get_userdatabylogin($username); - - if ( !$user || ($user->user_login != $username) ) { - do_action( 'wp_login_failed', $username ); - return new WP_Error('invalid_username', __('ERROR: Invalid username.')); + $password = trim($password); + + /** + * Filter the user to authenticate. + * + * If a non-null value is passed, the filter will effectively short-circuit + * authentication, returning an error instead. + * + * @since 2.8.0 + * + * @param null|WP_User $user User to authenticate. + * @param string $username User login. + * @param string $password User password + */ + $user = apply_filters( 'authenticate', null, $username, $password ); + + if ( $user == null ) { + // TODO what should the error message be? (Or would these even happen?) + // Only needed if all authentication handlers fail to return anything. + $user = new WP_Error('authentication_failed', __('ERROR: Invalid username or incorrect password.')); } - $user = apply_filters('wp_authenticate_user', $user, $password); - if ( is_wp_error($user) ) { - do_action( 'wp_login_failed', $username ); - return $user; - } + $ignore_codes = array('empty_username', 'empty_password'); - if ( !wp_check_password($password, $user->user_pass, $user->ID) ) { + if (is_wp_error($user) && !in_array($user->get_error_code(), $ignore_codes) ) { + /** + * Fires after a user login has failed. + * + * @since 2.5.0 + * + * @param string $username User login. + */ do_action( 'wp_login_failed', $username ); - return new WP_Error('incorrect_password', __('ERROR: Incorrect password.')); } - return new WP_User($user->ID); + return $user; } endif; +if ( !function_exists('wp_logout') ) : /** - * wp_logout() - Log the current user out - * @since 2.5 + * Log the current user out. * + * @since 2.5.0 */ -if ( !function_exists('wp_logout') ) : function wp_logout() { wp_clear_auth_cookie(); - do_action('wp_logout'); + + /** + * Fires after a user is logged-out. + * + * @since 1.5.0 + */ + do_action( 'wp_logout' ); } endif; if ( !function_exists('wp_validate_auth_cookie') ) : /** - * wp_validate_auth_cookie() - Validates authentication cookie + * Validates authentication cookie. * - * The checks include making sure that the authentication cookie - * is set and pulling in the contents (if $cookie is not used). + * The checks include making sure that the authentication cookie is set and + * pulling in the contents (if $cookie is not used). * - * Makes sure the cookie is not expired. Verifies the hash in - * cookie is what is should be and compares the two. + * Makes sure the cookie is not expired. Verifies the hash in cookie is what is + * should be and compares the two. * - * @since 2.5 + * @since 2.5.0 * * @param string $cookie Optional. If used, will validate contents instead of cookie's + * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in * @return bool|int False if invalid cookie, User ID if valid. */ -function wp_validate_auth_cookie($cookie = '') { - if ( empty($cookie) ) { - if ( empty($_COOKIE[AUTH_COOKIE]) ) - return false; - $cookie = $_COOKIE[AUTH_COOKIE]; - } - - $cookie_elements = explode('|', $cookie); - if ( count($cookie_elements) != 3 ) +function wp_validate_auth_cookie($cookie = '', $scheme = '') { + if ( ! $cookie_elements = wp_parse_auth_cookie($cookie, $scheme) ) { + /** + * Fires if an authentication cookie is malformed. + * + * @since 2.7.0 + * + * @param string $cookie Malformed auth cookie. + * @param string $scheme Authentication scheme. Values include 'auth', 'secure_auth', + * or 'logged_in'. + */ + do_action( 'auth_cookie_malformed', $cookie, $scheme ); return false; + } - list($username, $expiration, $hmac) = $cookie_elements; + extract($cookie_elements, EXTR_OVERWRITE); $expired = $expiration; // Allow a grace period for POST and AJAX requests if ( defined('DOING_AJAX') || 'POST' == $_SERVER['REQUEST_METHOD'] ) - $expired += 3600; + $expired += HOUR_IN_SECONDS; // Quick check to see if an honest cookie has expired - if ( $expired < time() ) + if ( $expired < time() ) { + /** + * Fires once an authentication cookie has expired. + * + * @since 2.7.0 + * + * @param array $cookie_elements An array of data for the authentication cookie. + */ + do_action( 'auth_cookie_expired', $cookie_elements ); return false; + } + + $user = get_user_by('login', $username); + if ( ! $user ) { + /** + * Fires if a bad username is entered in the user authentication process. + * + * @since 2.7.0 + * + * @param array $cookie_elements An array of data for the authentication cookie. + */ + do_action( 'auth_cookie_bad_username', $cookie_elements ); + return false; + } + + $pass_frag = substr($user->user_pass, 8, 4); - $key = wp_hash($username . '|' . $expiration); + $key = wp_hash($username . $pass_frag . '|' . $expiration, $scheme); $hash = hash_hmac('md5', $username . '|' . $expiration, $key); - if ( $hmac != $hash ) + if ( ! hash_equals( $hash, $hmac ) ) { + /** + * Fires if a bad authentication cookie hash is encountered. + * + * @since 2.7.0 + * + * @param array $cookie_elements An array of data for the authentication cookie. + */ + do_action( 'auth_cookie_bad_hash', $cookie_elements ); return false; + } - $user = get_userdatabylogin($username); - if ( ! $user ) - return false; + if ( $expiration < time() ) // AJAX/POST grace period set above + $GLOBALS['login_grace_period'] = 1; + + /** + * Fires once an authentication cookie has been validated. + * + * @since 2.7.0 + * + * @param array $cookie_elements An array of data for the authentication cookie. + * @param WP_User $user User object. + */ + do_action( 'auth_cookie_valid', $cookie_elements, $user ); return $user->ID; } @@ -506,81 +678,232 @@ endif; if ( !function_exists('wp_generate_auth_cookie') ) : /** - * wp_generate_auth_cookie() - Generate authentication cookie contents + * Generate authentication cookie contents. * - * @since 2.5 - * @uses apply_filters() Calls 'auth_cookie' hook on $cookie contents, User ID - * and expiration of cookie. + * @since 2.5.0 * * @param int $user_id User ID * @param int $expiration Cookie expiration in seconds + * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in * @return string Authentication cookie contents */ -function wp_generate_auth_cookie($user_id, $expiration) { +function wp_generate_auth_cookie($user_id, $expiration, $scheme = 'auth') { $user = get_userdata($user_id); - $key = wp_hash($user->user_login . '|' . $expiration); + $pass_frag = substr($user->user_pass, 8, 4); + + $key = wp_hash($user->user_login . $pass_frag . '|' . $expiration, $scheme); $hash = hash_hmac('md5', $user->user_login . '|' . $expiration, $key); $cookie = $user->user_login . '|' . $expiration . '|' . $hash; - return apply_filters('auth_cookie', $cookie, $user_id, $expiration); + /** + * Filter the authentication cookie. + * + * @since 2.5.0 + * + * @param string $cookie Authentication cookie. + * @param int $user_id User ID. + * @param int $expiration Authentication cookie expiration in seconds. + * @param string $scheme Cookie scheme used. Accepts 'auth', 'secure_auth', or 'logged_in'. + */ + return apply_filters( 'auth_cookie', $cookie, $user_id, $expiration, $scheme ); +} +endif; + +if ( !function_exists('wp_parse_auth_cookie') ) : +/** + * Parse a cookie into its components + * + * @since 2.7.0 + * + * @param string $cookie + * @param string $scheme Optional. The cookie scheme to use: auth, secure_auth, or logged_in + * @return array Authentication cookie components + */ +function wp_parse_auth_cookie($cookie = '', $scheme = '') { + if ( empty($cookie) ) { + switch ($scheme){ + case 'auth': + $cookie_name = AUTH_COOKIE; + break; + case 'secure_auth': + $cookie_name = SECURE_AUTH_COOKIE; + break; + case "logged_in": + $cookie_name = LOGGED_IN_COOKIE; + break; + default: + if ( is_ssl() ) { + $cookie_name = SECURE_AUTH_COOKIE; + $scheme = 'secure_auth'; + } else { + $cookie_name = AUTH_COOKIE; + $scheme = 'auth'; + } + } + + if ( empty($_COOKIE[$cookie_name]) ) + return false; + $cookie = $_COOKIE[$cookie_name]; + } + + $cookie_elements = explode('|', $cookie); + if ( count($cookie_elements) != 3 ) + return false; + + list($username, $expiration, $hmac) = $cookie_elements; + + return compact('username', 'expiration', 'hmac', 'scheme'); } endif; if ( !function_exists('wp_set_auth_cookie') ) : /** - * wp_set_auth_cookie() - Sets the authentication cookies based User ID + * Sets the authentication cookies based on user ID. * - * The $remember parameter increases the time that the cookie will - * be kept. The default the cookie is kept without remembering is - * two days. When $remember is set, the cookies will be kept for - * 14 days or two weeks. + * The $remember parameter increases the time that the cookie will be kept. The + * default the cookie is kept without remembering is two days. When $remember is + * set, the cookies will be kept for 14 days or two weeks. * - * @since 2.5 + * @since 2.5.0 * * @param int $user_id User ID - * @param bool $remember Whether to remember the user or not + * @param bool $remember Whether to remember the user */ -function wp_set_auth_cookie($user_id, $remember = false) { +function wp_set_auth_cookie($user_id, $remember = false, $secure = '') { if ( $remember ) { - $expiration = $expire = time() + 1209600; + /** + * Filter the duration of the authentication cookie expiration period. + * + * @since 2.8.0 + * + * @param int $length Duration of the expiration period in seconds. + * @param int $user_id User ID. + * @param bool $remember Whether to remember the user login. Default false. + */ + $expiration = time() + apply_filters( 'auth_cookie_expiration', 14 * DAY_IN_SECONDS, $user_id, $remember ); + + /* + * Ensure the browser will continue to send the cookie after the expiration time is reached. + * Needed for the login grace period in wp_validate_auth_cookie(). + */ + $expire = $expiration + ( 12 * HOUR_IN_SECONDS ); } else { - $expiration = time() + 172800; + /** This filter is documented in wp-includes/pluggable.php */ + $expiration = time() + apply_filters( 'auth_cookie_expiration', 2 * DAY_IN_SECONDS, $user_id, $remember ); $expire = 0; } - $cookie = wp_generate_auth_cookie($user_id, $expiration); - - do_action('set_auth_cookie', $cookie, $expire); + if ( '' === $secure ) + $secure = is_ssl(); + + /** + * Filter whether the connection is secure. + * + * @since 3.1.0 + * + * @param bool $secure Whether the connection is secure. + * @param int $user_id User ID. + */ + $secure = apply_filters( 'secure_auth_cookie', $secure, $user_id ); + + /** + * Filter whether to use a secure cookie when logged-in. + * + * @since 3.1.0 + * + * @param bool $cookie Whether to use a secure cookie when logged-in. + * @param int $user_id User ID. + * @param bool $secure Whether the connection is secure. + */ + $secure_logged_in_cookie = apply_filters( 'secure_logged_in_cookie', false, $user_id, $secure ); + + if ( $secure ) { + $auth_cookie_name = SECURE_AUTH_COOKIE; + $scheme = 'secure_auth'; + } else { + $auth_cookie_name = AUTH_COOKIE; + $scheme = 'auth'; + } - setcookie(AUTH_COOKIE, $cookie, $expire, COOKIEPATH, COOKIE_DOMAIN); + $auth_cookie = wp_generate_auth_cookie($user_id, $expiration, $scheme); + $logged_in_cookie = wp_generate_auth_cookie($user_id, $expiration, 'logged_in'); + + /** + * Fires immediately before the authentication cookie is set. + * + * @since 2.5.0 + * + * @param string $auth_cookie Authentication cookie. + * @param int $expire Login grace period in seconds. Default 43,200 seconds, or 12 hours. + * @param int $expiration Duration in seconds the authentication cookie should be valid. + * Default 1,209,600 seconds, or 14 days. + * @param int $user_id User ID. + * @param string $scheme Authentication scheme. Values include 'auth', 'secure_auth', or 'logged_in'. + */ + do_action( 'set_auth_cookie', $auth_cookie, $expire, $expiration, $user_id, $scheme ); + + /** + * Fires immediately before the secure authentication cookie is set. + * + * @since 2.6.0 + * + * @param string $logged_in_cookie The logged-in cookie. + * @param int $expire Login grace period in seconds. Default 43,200 seconds, or 12 hours. + * @param int $expiration Duration in seconds the authentication cookie should be valid. + * Default 1,209,600 seconds, or 14 days. + * @param int $user_id User ID. + * @param string $scheme Authentication scheme. Default 'logged_in'. + */ + do_action( 'set_logged_in_cookie', $logged_in_cookie, $expire, $expiration, $user_id, 'logged_in' ); + + setcookie($auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN, $secure, true); + setcookie($auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, $secure, true); + setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true); if ( COOKIEPATH != SITECOOKIEPATH ) - setcookie(AUTH_COOKIE, $cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN); + setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, $secure_logged_in_cookie, true); } endif; if ( !function_exists('wp_clear_auth_cookie') ) : /** - * wp_clear_auth_cookie() - Deletes all of the cookies associated with authentication + * Removes all of the cookies associated with authentication. * - * @since 2.5 + * @since 2.5.0 */ function wp_clear_auth_cookie() { - setcookie(AUTH_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); - setcookie(AUTH_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); + /** + * Fires just before the authentication cookies are cleared. + * + * @since 2.7.0 + */ + do_action( 'clear_auth_cookie' ); + + setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); + setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN ); + setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); + setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN ); + setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); + setcookie( LOGGED_IN_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); // Old cookies - setcookie(USER_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); - setcookie(PASS_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); - setcookie(USER_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); - setcookie(PASS_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); + setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); + setcookie( AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); + setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); + setcookie( SECURE_AUTH_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); + + // Even older cookies + setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); + setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, COOKIEPATH, COOKIE_DOMAIN ); + setcookie( USER_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); + setcookie( PASS_COOKIE, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH, COOKIE_DOMAIN ); } endif; if ( !function_exists('is_user_logged_in') ) : /** - * is_user_logged_in() - Checks if the current visitor is a logged in user + * Checks if the current visitor is a logged in user. * * @since 2.0.0 * @@ -589,7 +912,7 @@ if ( !function_exists('is_user_logged_in') ) : function is_user_logged_in() { $user = wp_get_current_user(); - if ( $user->id == 0 ) + if ( ! $user->exists() ) return false; return true; @@ -598,66 +921,157 @@ endif; if ( !function_exists('auth_redirect') ) : /** - * auth_redirect() - Checks if a user is logged in, if not it redirects them to the login page + * Checks if a user is logged in, if not it redirects them to the login page. * - * @since 1.5 + * @since 1.5.0 */ function auth_redirect() { // Checks if a user is logged in, if not redirects them to the login page - if ( (!empty($_COOKIE[AUTH_COOKIE]) && - !wp_validate_auth_cookie($_COOKIE[AUTH_COOKIE])) || - (empty($_COOKIE[AUTH_COOKIE])) ) { - nocache_headers(); - wp_redirect(get_option('siteurl') . '/wp-login.php?redirect_to=' . urlencode($_SERVER['REQUEST_URI'])); - exit(); + $secure = ( is_ssl() || force_ssl_admin() ); + + /** + * Filter whether to use a secure authentication redirect. + * + * @since 3.1.0 + * + * @param bool $secure Whether to use a secure authentication redirect. Default false. + */ + $secure = apply_filters( 'secure_auth_redirect', $secure ); + + // If https is required and request is http, redirect + if ( $secure && !is_ssl() && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { + if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { + wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); + exit(); + } else { + wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); + exit(); + } + } + + if ( is_user_admin() ) { + $scheme = 'logged_in'; + } else { + /** + * Filter the authentication redirect scheme. + * + * @since 2.9.0 + * + * @param string $scheme Authentication redirect scheme. Default empty. + */ + $scheme = apply_filters( 'auth_redirect_scheme', '' ); + } + + if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) { + /** + * Fires before the authentication redirect. + * + * @since 2.8.0 + * + * @param int $user_id User ID. + */ + do_action( 'auth_redirect', $user_id ); + + // If the user wants ssl but the session is not ssl, redirect. + if ( !$secure && get_user_option('use_ssl', $user_id) && false !== strpos($_SERVER['REQUEST_URI'], 'wp-admin') ) { + if ( 0 === strpos( $_SERVER['REQUEST_URI'], 'http' ) ) { + wp_redirect( set_url_scheme( $_SERVER['REQUEST_URI'], 'https' ) ); + exit(); + } else { + wp_redirect( 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); + exit(); + } + } + + return; // The cookie is good so we're done } + + // The cookie is no good so force login + nocache_headers(); + + $redirect = ( strpos( $_SERVER['REQUEST_URI'], '/options.php' ) && wp_get_referer() ) ? wp_get_referer() : set_url_scheme( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); + + $login_url = wp_login_url($redirect, true); + + wp_redirect($login_url); + exit(); } endif; if ( !function_exists('check_admin_referer') ) : /** - * check_admin_referer() - Makes sure that a user was referred from another admin page, to avoid security exploits + * Makes sure that a user was referred from another admin page. + * + * To avoid security exploits. * * @since 1.2.0 - * @uses do_action() Calls 'check_admin_referer' on $action. * * @param string $action Action nonce * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5) */ function check_admin_referer($action = -1, $query_arg = '_wpnonce') { - $adminurl = strtolower(get_option('siteurl')).'/wp-admin'; + if ( -1 == $action ) + _doing_it_wrong( __FUNCTION__, __( 'You should specify a nonce action to be verified by using the first parameter.' ), '3.2' ); + + $adminurl = strtolower(admin_url()); $referer = strtolower(wp_get_referer()); - $result = wp_verify_nonce($_REQUEST[$query_arg], $action); - if ( !$result && !(-1 == $action && strpos($referer, $adminurl) !== false) ) { + $result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false; + if ( !$result && !(-1 == $action && strpos($referer, $adminurl) === 0) ) { wp_nonce_ays($action); die(); } - do_action('check_admin_referer', $action, $result); + + /** + * Fires once the admin request has been validated or not. + * + * @since 1.5.1 + * + * @param string $action The nonce action. + * @param bool $result Whether the admin request nonce was validated. + */ + do_action( 'check_admin_referer', $action, $result ); return $result; -}endif; +} +endif; if ( !function_exists('check_ajax_referer') ) : /** - * check_ajax_referer() - Verifies the AJAX request to prevent processing requests external of the blog. + * Verifies the AJAX request to prevent processing requests external of the blog. * - * @since 2.0.4 + * @since 2.0.3 * * @param string $action Action nonce * @param string $query_arg where to look for nonce in $_REQUEST (since 2.5) */ function check_ajax_referer( $action = -1, $query_arg = false, $die = true ) { - if ( $query_arg ) - $nonce = $_REQUEST[$query_arg]; - else - $nonce = $_REQUEST['_ajax_nonce'] ? $_REQUEST['_ajax_nonce'] : $_REQUEST['_wpnonce']; + $nonce = ''; + + if ( $query_arg && isset( $_REQUEST[ $query_arg ] ) ) + $nonce = $_REQUEST[ $query_arg ]; + elseif ( isset( $_REQUEST['_ajax_nonce'] ) ) + $nonce = $_REQUEST['_ajax_nonce']; + elseif ( isset( $_REQUEST['_wpnonce'] ) ) + $nonce = $_REQUEST['_wpnonce']; $result = wp_verify_nonce( $nonce, $action ); - if ( $die && false == $result ) - die('-1'); + if ( $die && false == $result ) { + if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) + wp_die( -1 ); + else + die( '-1' ); + } - do_action('check_ajax_referer', $action, $result); + /** + * Fires once the AJAX request has been validated or not. + * + * @since 2.1.0 + * + * @param string $action The AJAX nonce action. + * @param bool $result Whether the AJAX request nonce was validated. + */ + do_action( 'check_ajax_referer', $action, $result ); return $result; } @@ -665,79 +1079,85 @@ endif; if ( !function_exists('wp_redirect') ) : /** - * wp_redirect() - Redirects to another page, with a workaround for the IIS Set-Cookie bug + * Redirects to another page. * - * @link http://support.microsoft.com/kb/q176113/ * @since 1.5.1 - * @uses apply_filters() Calls 'wp_redirect' hook on $location and $status. * - * @param string $location The path to redirect to - * @param int $status Status code to use - * @return bool False if $location is not set + * @param string $location The path to redirect to. + * @param int $status Status code to use. + * @return bool False if $location is not provided, true otherwise. */ function wp_redirect($location, $status = 302) { global $is_IIS; - $location = apply_filters('wp_redirect', $location, $status); - $status = apply_filters('wp_redirect_status', $status, $location); - - if ( !$location ) // allows the wp_redirect filter to cancel a redirect + /** + * Filter the redirect location. + * + * @since 2.1.0 + * + * @param string $location The path to redirect to. + * @param int $status Status code to use. + */ + $location = apply_filters( 'wp_redirect', $location, $status ); + + /** + * Filter the redirect status code. + * + * @since 2.3.0 + * + * @param int $status Status code to use. + * @param string $location The path to redirect to. + */ + $status = apply_filters( 'wp_redirect_status', $status, $location ); + + if ( ! $location ) return false; $location = wp_sanitize_redirect($location); - if ( $is_IIS ) { - header("Refresh: 0;url=$location"); - } else { - if ( php_sapi_name() != 'cgi-fcgi' ) - status_header($status); // This causes problems on IIS and some FastCGI setups - header("Location: $location"); - } + if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' ) + status_header($status); // This causes problems on IIS and some FastCGI setups + + header("Location: $location", true, $status); + + return true; } endif; if ( !function_exists('wp_sanitize_redirect') ) : /** - * wp_sanitize_redirect() - Sanitizes a URL for use in a redirect + * Sanitizes a URL for use in a redirect. * - * @since 2.3 + * @since 2.3.0 * * @return string redirect-sanitized URL **/ function wp_sanitize_redirect($location) { - $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%]|i', '', $location); + $location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%!]|i', '', $location); $location = wp_kses_no_null($location); // remove %0d and %0a from location - $strip = array('%0d', '%0a'); - $found = true; - while($found) { - $found = false; - foreach($strip as $val) { - while(strpos($location, $val) !== false) { - $found = true; - $location = str_replace($val, '', $location); - } - } - } + $strip = array('%0d', '%0a', '%0D', '%0A'); + $location = _deep_replace($strip, $location); return $location; } endif; if ( !function_exists('wp_safe_redirect') ) : /** - * wp_safe_redirect() - Performs a safe (local) redirect, using wp_redirect() + * Performs a safe (local) redirect, using wp_redirect(). * * Checks whether the $location is using an allowed host, if it has an absolute - * path. A plugin can therefore set or remove allowed host(s) to or from the list. + * path. A plugin can therefore set or remove allowed host(s) to or from the + * list. * * If the host is not allowed, then the redirect is to wp-admin on the siteurl - * instead. This prevents malicious redirects which redirect to another host, but - * only used in a few places. + * instead. This prevents malicious redirects which redirect to another host, + * but only used in a few places. + * + * @since 2.3.0 * - * @since 2.3 - * @uses apply_filters() Calls 'allowed_redirect_hosts' on an array containing - * WordPress host string and $location host string. + * @uses wp_validate_redirect() To validate the redirect is to an allowed host. * * @return void Does not return anything **/ @@ -746,72 +1166,206 @@ function wp_safe_redirect($location, $status = 302) { // Need to look at the URL the way it will end up in wp_redirect() $location = wp_sanitize_redirect($location); + $location = wp_validate_redirect($location, admin_url()); + + wp_redirect($location, $status); +} +endif; + +if ( !function_exists('wp_validate_redirect') ) : +/** + * Validates a URL for use in a redirect. + * + * Checks whether the $location is using an allowed host, if it has an absolute + * path. A plugin can therefore set or remove allowed host(s) to or from the + * list. + * + * If the host is not allowed, then the redirect is to $default supplied + * + * @since 2.8.1 + * + * @param string $location The redirect to validate + * @param string $default The value to return if $location is not allowed + * @return string redirect-sanitized URL + **/ +function wp_validate_redirect($location, $default = '') { + $location = trim( $location ); // browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//' if ( substr($location, 0, 2) == '//' ) $location = 'http:' . $location; - $lp = parse_url($location); - $wpp = parse_url(get_option('home')); + // In php 5 parse_url may fail if the URL query part contains http://, bug #38143 + $test = ( $cut = strpos($location, '?') ) ? substr( $location, 0, $cut ) : $location; + + $lp = parse_url($test); + + // Give up if malformed URL + if ( false === $lp ) + return $default; + + // Allow only http and https schemes. No data:, etc. + if ( isset($lp['scheme']) && !('http' == $lp['scheme'] || 'https' == $lp['scheme']) ) + return $default; + + // Reject if scheme is set but host is not. This catches urls like https:host.com for which parse_url does not set the host field. + if ( isset($lp['scheme']) && !isset($lp['host']) ) + return $default; - $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : ''); + $wpp = parse_url(home_url()); + + /** + * Filter the whitelist of hosts to redirect to. + * + * @since 2.3.0 + * + * @param array $hosts An array of allowed hosts. + * @param bool|string $host The parsed host; empty if not isset. + */ + $allowed_hosts = (array) apply_filters( 'allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '' ); if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) ) - $location = get_option('siteurl') . '/wp-admin/'; + $location = $default; - wp_redirect($location, $status); + return $location; } endif; if ( ! function_exists('wp_notify_postauthor') ) : /** - * wp_notify_postauthor() - Notify an author of a comment/trackback/pingback to one of their posts + * Notify an author (and/or others) of a comment/trackback/pingback on a post. * * @since 1.0.0 * * @param int $comment_id Comment ID - * @param string $comment_type Optional. The comment type either 'comment' (default), 'trackback', or 'pingback' - * @return bool False if user email does not exist. True on completion. + * @param string $deprecated Not used + * @return bool True on completion. False if no email addresses were specified. */ -function wp_notify_postauthor($comment_id, $comment_type='') { - $comment = get_comment($comment_id); - $post = get_post($comment->comment_post_ID); - $user = get_userdata( $post->post_author ); +function wp_notify_postauthor( $comment_id, $deprecated = null ) { + if ( null !== $deprecated ) { + _deprecated_argument( __FUNCTION__, '3.8' ); + } - if ('' == $user->user_email) return false; // If there's no email to send the comment to + $comment = get_comment( $comment_id ); + if ( empty( $comment ) ) + return false; + + $post = get_post( $comment->comment_post_ID ); + $author = get_userdata( $post->post_author ); + + // Who to notify? By default, just the post author, but others can be added. + $emails = array(); + if ( $author ) { + $emails[] = $author->user_email; + } + + /** + * Filter the list of email addresses to receive a comment notification. + * + * By default, only post authors are notified of comments. This filter allows + * others to be added. + * + * @since 3.7.0 + * + * @param array $emails An array of email addresses to receive a comment notification. + * @param int $comment_id The comment ID. + */ + $emails = apply_filters( 'comment_notification_recipients', $emails, $comment_id ); + $emails = array_filter( $emails ); + + // If there are no addresses to send the comment to, bail. + if ( ! count( $emails ) ) { + return false; + } + + // Facilitate unsetting below without knowing the keys. + $emails = array_flip( $emails ); + + /** + * Filter whether to notify comment authors of their comments on their own posts. + * + * By default, comment authors aren't notified of their comments on their own + * posts. This filter allows you to override that. + * + * @since 3.8.0 + * + * @param bool $notify Whether to notify the post author of their own comment. + * Default false. + * @param int $comment_id The comment ID. + */ + $notify_author = apply_filters( 'comment_notification_notify_author', false, $comment_id ); + + // The comment was left by the author + if ( $author && ! $notify_author && $comment->user_id == $post->post_author ) { + unset( $emails[ $author->user_email ] ); + } + + // The author moderated a comment on their own post + if ( $author && ! $notify_author && $post->post_author == get_current_user_id() ) { + unset( $emails[ $author->user_email ] ); + } + + // The post author is no longer a member of the blog + if ( $author && ! $notify_author && ! user_can( $post->post_author, 'read_post', $post->ID ) ) { + unset( $emails[ $author->user_email ] ); + } + + // If there's no email to send the comment to, bail, otherwise flip array back around for use below + if ( ! count( $emails ) ) { + return false; + } else { + $emails = array_flip( $emails ); + } $comment_author_domain = @gethostbyaddr($comment->comment_author_IP); - $blogname = get_option('blogname'); - - if ( empty( $comment_type ) ) $comment_type = 'comment'; - - if ('comment' == $comment_type) { - $notify_message = sprintf( __('New comment on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n"; - $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; - $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n"; - $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; - $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n"; - $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; - $notify_message .= __('You can see all comments on this post here: ') . "\r\n"; - $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title ); - } elseif ('trackback' == $comment_type) { - $notify_message = sprintf( __('New trackback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n"; - $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; - $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; - $notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; - $notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n"; - $subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title ); - } elseif ('pingback' == $comment_type) { - $notify_message = sprintf( __('New pingback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n"; - $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; - $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; - $notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n"; - $notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n"; - $subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title ); + // The blogname option is escaped with esc_html on the way into the database in sanitize_option + // we want to reverse this for the plain text arena of emails. + $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES); + + switch ( $comment->comment_type ) { + case 'trackback': + $notify_message = sprintf( __( 'New trackback on your post "%s"' ), $post->post_title ) . "\r\n"; + /* translators: 1: website name, 2: author IP, 3: author domain */ + $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; + $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; + $notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; + $notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n"; + /* translators: 1: blog name, 2: post title */ + $subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title ); + break; + case 'pingback': + $notify_message = sprintf( __( 'New pingback on your post "%s"' ), $post->post_title ) . "\r\n"; + /* translators: 1: comment author, 2: author IP, 3: author domain */ + $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; + $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; + $notify_message .= __('Excerpt: ') . "\r\n" . sprintf('[...] %s [...]', $comment->comment_content ) . "\r\n\r\n"; + $notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n"; + /* translators: 1: blog name, 2: post title */ + $subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title ); + break; + default: // Comments + $notify_message = sprintf( __( 'New comment on your post "%s"' ), $post->post_title ) . "\r\n"; + /* translators: 1: comment author, 2: author IP, 3: author domain */ + $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; + $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n"; + $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; + $notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n"; + $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; + $notify_message .= __('You can see all comments on this post here: ') . "\r\n"; + /* translators: 1: blog name, 2: post title */ + $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title ); + break; } $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n"; - $notify_message .= sprintf( __('Delete it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&c=$comment_id" ) . "\r\n"; - $notify_message .= sprintf( __('Spam it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&dt=spam&c=$comment_id" ) . "\r\n"; + $notify_message .= sprintf( __('Permalink: %s'), get_comment_link( $comment_id ) ) . "\r\n"; + + if ( user_can( $post->post_author, 'edit_comment', $comment_id ) ) { + if ( EMPTY_TRASH_DAYS ) + $notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n"; + else + $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n"; + $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n"; + } $wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME'])); @@ -831,11 +1385,39 @@ function wp_notify_postauthor($comment_id, $comment_type='') { if ( isset($reply_to) ) $message_headers .= $reply_to . "\n"; - $notify_message = apply_filters('comment_notification_text', $notify_message, $comment_id); - $subject = apply_filters('comment_notification_subject', $subject, $comment_id); - $message_headers = apply_filters('comment_notification_headers', $message_headers, $comment_id); - - @wp_mail($user->user_email, $subject, $notify_message, $message_headers); + /** + * Filter the comment notification email text. + * + * @since 1.5.2 + * + * @param string $notify_message The comment notification email text. + * @param int $comment_id Comment ID. + */ + $notify_message = apply_filters( 'comment_notification_text', $notify_message, $comment_id ); + + /** + * Filter the comment notification email subject. + * + * @since 1.5.2 + * + * @param string $subject The comment notification email subject. + * @param int $comment_id Comment ID. + */ + $subject = apply_filters( 'comment_notification_subject', $subject, $comment_id ); + + /** + * Filter the comment notification email headers. + * + * @since 1.5.2 + * + * @param string $message_headers Headers for the comment notification email. + * @param int $comment_id Comment ID. + */ + $message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment_id ); + + foreach ( $emails as $email ) { + @wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); + } return true; } @@ -843,9 +1425,10 @@ endif; if ( !function_exists('wp_notify_moderator') ) : /** - * wp_notify_moderator() - Notifies the moderator of the blog about a new comment that is awaiting approval + * Notifies the moderator of the blog about a new comment that is awaiting approval. + * + * @since 1.0.0 * - * @since 1.0 * @uses $wpdb * * @param int $comment_id Comment ID @@ -854,107 +1437,191 @@ if ( !function_exists('wp_notify_moderator') ) : function wp_notify_moderator($comment_id) { global $wpdb; - if( get_option( "moderation_notify" ) == 0 ) + if ( 0 == get_option( 'moderation_notify' ) ) return true; - $comment = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_ID=%d LIMIT 1", $comment_id)); - $post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID=%d LIMIT 1", $comment->comment_post_ID)); + $comment = get_comment($comment_id); + $post = get_post($comment->comment_post_ID); + $user = get_userdata( $post->post_author ); + // Send to the administration and to the post author if the author can modify the comment. + $emails = array( get_option( 'admin_email' ) ); + if ( user_can( $user->ID, 'edit_comment', $comment_id ) && ! empty( $user->user_email ) ) { + if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) + $emails[] = $user->user_email; + } $comment_author_domain = @gethostbyaddr($comment->comment_author_IP); $comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'"); - switch ($comment->comment_type) - { + // The blogname option is escaped with esc_html on the way into the database in sanitize_option + // we want to reverse this for the plain text arena of emails. + $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES); + + switch ( $comment->comment_type ) { case 'trackback': - $notify_message = sprintf( __('A new trackback on the post #%1$s "%2$s" is waiting for your approval'), $post->ID, $post->post_title ) . "\r\n"; + $notify_message = sprintf( __('A new trackback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n"; $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n"; $notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; $notify_message .= __('Trackback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; break; case 'pingback': - $notify_message = sprintf( __('A new pingback on the post #%1$s "%2$s" is waiting for your approval'), $post->ID, $post->post_title ) . "\r\n"; + $notify_message = sprintf( __('A new pingback on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n"; $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n"; $notify_message .= sprintf( __('Website : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; $notify_message .= __('Pingback excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; break; - default: //Comments - $notify_message = sprintf( __('A new comment on the post #%1$s "%2$s" is waiting for your approval'), $post->ID, $post->post_title ) . "\r\n"; + default: // Comments + $notify_message = sprintf( __('A new comment on the post "%s" is waiting for your approval'), $post->post_title ) . "\r\n"; $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n"; $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n"; $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n"; $notify_message .= sprintf( __('URL : %s'), $comment->comment_author_url ) . "\r\n"; - $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n"; + $notify_message .= sprintf( __('Whois : http://whois.arin.net/rest/ip/%s'), $comment->comment_author_IP ) . "\r\n"; $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; break; } - $notify_message .= sprintf( __('Approve it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=mac&c=$comment_id" ) . "\r\n"; - $notify_message .= sprintf( __('Delete it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&c=$comment_id" ) . "\r\n"; - $notify_message .= sprintf( __('Spam it: %s'), get_option('siteurl')."/wp-admin/comment.php?action=cdc&dt=spam&c=$comment_id" ) . "\r\n"; - - $strCommentsPending = sprintf( __ngettext('%s comment', '%s comments', $comments_waiting), $comments_waiting ); - $notify_message .= sprintf( __('Currently %s are waiting for approval. Please visit the moderation panel:'), $strCommentsPending ) . "\r\n"; - $notify_message .= get_option('siteurl') . "/wp-admin/edit-comments.php?comment_status=moderated\r\n"; - - $subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), get_option('blogname'), $post->post_title ); - $admin_email = get_option('admin_email'); - - $notify_message = apply_filters('comment_moderation_text', $notify_message, $comment_id); - $subject = apply_filters('comment_moderation_subject', $subject, $comment_id); - - @wp_mail($admin_email, $subject, $notify_message); + $notify_message .= sprintf( __('Approve it: %s'), admin_url("comment.php?action=approve&c=$comment_id") ) . "\r\n"; + if ( EMPTY_TRASH_DAYS ) + $notify_message .= sprintf( __('Trash it: %s'), admin_url("comment.php?action=trash&c=$comment_id") ) . "\r\n"; + else + $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n"; + $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n"; + + $notify_message .= sprintf( _n('Currently %s comment is waiting for approval. Please visit the moderation panel:', + 'Currently %s comments are waiting for approval. Please visit the moderation panel:', $comments_waiting), number_format_i18n($comments_waiting) ) . "\r\n"; + $notify_message .= admin_url("edit-comments.php?comment_status=moderated") . "\r\n"; + + $subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), $blogname, $post->post_title ); + $message_headers = ''; + + /** + * Filter the list of recipients for comment moderation emails. + * + * @since 3.7.0 + * + * @param array $emails List of email addresses to notify for comment moderation. + * @param int $comment_id Comment ID. + */ + $emails = apply_filters( 'comment_moderation_recipients', $emails, $comment_id ); + + /** + * Filter the comment moderation email text. + * + * @since 1.5.2 + * + * @param string $notify_message Text of the comment moderation email. + * @param int $comment_id Comment ID. + */ + $notify_message = apply_filters( 'comment_moderation_text', $notify_message, $comment_id ); + + /** + * Filter the comment moderation email subject. + * + * @since 1.5.2 + * + * @param string $subject Subject of the comment moderation email. + * @param int $comment_id Comment ID. + */ + $subject = apply_filters( 'comment_moderation_subject', $subject, $comment_id ); + + /** + * Filter the comment moderation email headers. + * + * @since 2.8.0 + * + * @param string $message_headers Headers for the comment moderation email. + * @param int $comment_id Comment ID. + */ + $message_headers = apply_filters( 'comment_moderation_headers', $message_headers, $comment_id ); + + foreach ( $emails as $email ) { + @wp_mail( $email, wp_specialchars_decode( $subject ), $notify_message, $message_headers ); + } return true; } endif; +if ( !function_exists('wp_password_change_notification') ) : +/** + * Notify the blog admin of a user changing password, normally via email. + * + * @since 2.7.0 + * + * @param object $user User Object + */ +function wp_password_change_notification(&$user) { + // send a copy of password change notification to the admin + // but check to see if it's the admin whose password we're changing, and skip this + if ( 0 !== strcasecmp( $user->user_email, get_option( 'admin_email' ) ) ) { + $message = sprintf(__('Password Lost and Changed for user: %s'), $user->user_login) . "\r\n"; + // The blogname option is escaped with esc_html on the way into the database in sanitize_option + // we want to reverse this for the plain text arena of emails. + $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES); + wp_mail(get_option('admin_email'), sprintf(__('[%s] Password Lost/Changed'), $blogname), $message); + } +} +endif; + if ( !function_exists('wp_new_user_notification') ) : /** - * wp_new_user_notification() - Notify the blog admin of a new user, normally via email + * Email login credentials to a newly-registered user. * - * @since 2.0 + * A new user registration notification is also sent to admin email. * - * @param int $user_id User ID - * @param string $plaintext_pass Optional. The user's plaintext password + * @since 2.0.0 + * + * @param int $user_id User ID. + * @param string $plaintext_pass Optional. The user's plaintext password. Default empty. */ function wp_new_user_notification($user_id, $plaintext_pass = '') { - $user = new WP_User($user_id); + $user = get_userdata( $user_id ); - $user_login = stripslashes($user->user_login); - $user_email = stripslashes($user->user_email); + // The blogname option is escaped with esc_html on the way into the database in sanitize_option + // we want to reverse this for the plain text arena of emails. + $blogname = wp_specialchars_decode(get_option('blogname'), ENT_QUOTES); - $message = sprintf(__('New user registration on your blog %s:'), get_option('blogname')) . "\r\n\r\n"; - $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n"; - $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n"; + $message = sprintf(__('New user registration on your site %s:'), $blogname) . "\r\n\r\n"; + $message .= sprintf(__('Username: %s'), $user->user_login) . "\r\n\r\n"; + $message .= sprintf(__('E-mail: %s'), $user->user_email) . "\r\n"; - @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), get_option('blogname')), $message); + @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), $blogname), $message); if ( empty($plaintext_pass) ) return; - $message = sprintf(__('Username: %s'), $user_login) . "\r\n"; + $message = sprintf(__('Username: %s'), $user->user_login) . "\r\n"; $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n"; - $message .= get_option('siteurl') . "/wp-login.php\r\n"; + $message .= wp_login_url() . "\r\n"; - wp_mail($user_email, sprintf(__('[%s] Your username and password'), get_option('blogname')), $message); + wp_mail($user->user_email, sprintf(__('[%s] Your username and password'), $blogname), $message); } endif; if ( !function_exists('wp_nonce_tick') ) : /** - * wp_nonce_tick() - Get the time-dependent variable for nonce creation + * Get the time-dependent variable for nonce creation. * - * A nonce has a lifespan of two ticks. Nonces in their second tick may be updated, e.g. by autosave. + * A nonce has a lifespan of two ticks. Nonces in their second tick may be + * updated, e.g. by autosave. * - * @since 2.5 + * @since 2.5.0 * * @return int */ function wp_nonce_tick() { - $nonce_life = apply_filters('nonce_life', 86400); + /** + * Filter the lifespan of nonces in seconds. + * + * @since 2.5.0 + * + * @param int $lifespan Lifespan of nonces in seconds. Default 86,400 seconds, or one day. + */ + $nonce_life = apply_filters( 'nonce_life', DAY_IN_SECONDS ); return ceil(time() / ( $nonce_life / 2 )); } @@ -962,12 +1629,12 @@ endif; if ( !function_exists('wp_verify_nonce') ) : /** - * wp_verify_nonce() - Verify that correct nonce was used with time limit + * Verify that correct nonce was used with time limit. * - * The user is given an amount of time to use the token, so therefore, since - * the UID and $action remain the same, the independent variable is the time. + * The user is given an amount of time to use the token, so therefore, since the + * UID and $action remain the same, the independent variable is the time. * - * @since 2.0.4 + * @since 2.0.3 * * @param string $nonce Nonce that was used in the form to verify * @param string|int $action Should give context to what is taking place and be the same when nonce was created. @@ -975,16 +1642,33 @@ if ( !function_exists('wp_verify_nonce') ) : */ function wp_verify_nonce($nonce, $action = -1) { $user = wp_get_current_user(); - $uid = (int) $user->id; + $uid = (int) $user->ID; + if ( ! $uid ) { + /** + * Filter whether the user who generated the nonce is logged out. + * + * @since 3.5.0 + * + * @param int $uid ID of the nonce-owning user. + * @param string $action The nonce action. + */ + $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); + } $i = wp_nonce_tick(); // Nonce generated 0-12 hours ago - if ( substr(wp_hash($i . $action . $uid), -12, 10) == $nonce ) + $expected = substr( wp_hash( $i . '|' . $action . '|' . $uid, 'nonce'), -12, 10 ); + if ( hash_equals( $expected, $nonce ) ) { return 1; + } + // Nonce generated 12-24 hours ago - if ( substr(wp_hash(($i - 1) . $action . $uid), -12, 10) == $nonce ) + $expected = substr( wp_hash( ( $i - 1 ) . '|' . $action . '|' . $uid, 'nonce' ), -12, 10 ); + if ( hash_equals( $expected, $nonce ) ) { return 2; + } + // Invalid nonce return false; } @@ -992,89 +1676,139 @@ endif; if ( !function_exists('wp_create_nonce') ) : /** - * wp_create_nonce() - Creates a random, one time use token + * Creates a random, one time use token. * - * @since 2.0.4 + * @since 2.0.3 * * @param string|int $action Scalar value to add context to the nonce. * @return string The one use form token */ function wp_create_nonce($action = -1) { $user = wp_get_current_user(); - $uid = (int) $user->id; + $uid = (int) $user->ID; + if ( ! $uid ) { + /** This filter is documented in wp-includes/pluggable.php */ + $uid = apply_filters( 'nonce_user_logged_out', $uid, $action ); + } $i = wp_nonce_tick(); - return substr(wp_hash($i . $action . $uid), -12, 10); + return substr(wp_hash($i . '|' . $action . '|' . $uid, 'nonce'), -12, 10); } endif; if ( !function_exists('wp_salt') ) : /** - * wp_salt() - Get salt to add to hashes to help prevent attacks + * Get salt to add to hashes. * - * You can set the salt by defining two areas. One is in the database and - * the other is in your wp-config.php file. The database location is defined - * in the option named 'secret', but most likely will not need to be changed. + * Salts are created using secret keys. Secret keys are located in two places: + * in the database and in the wp-config.php file. The secret key in the database + * is randomly generated and will be appended to the secret keys in wp-config.php. * - * The second, located in wp-config.php, is a constant named 'SECRET_KEY', but - * is not required. If the constant is not defined then the database constants - * will be used, since they are most likely given to be unique. However, given - * that the salt will be added to the password and can be seen, the constant - * is recommended to be set manually. + * The secret keys in wp-config.php should be updated to strong, random keys to maximize + * security. Below is an example of how the secret key constants are defined. + * Do not paste this example directly into wp-config.php. Instead, have a + * {@link https://api.wordpress.org/secret-key/1.1/salt/ secret key created} just + * for you. * * - * define('SECRET_KEY', 'mAry1HadA15|\/|b17w55w1t3asSn09w'); + * define('AUTH_KEY', ' XakmM%G4Yt>f`z]MON'); + * define('SECURE_AUTH_KEY', 'LzJ}op]mr|6+![P}Ak:uNdJCJZd>(Hx.-Mh#Tz)pCIU#uGEnfFz|f ;;eU%/U^O~'); + * define('LOGGED_IN_KEY', '|i|Ux`9z7X>QYR0Z_XnZ@|'); + * define('AUTH_SALT', 'eZyT)-Naw]F8CwA*VaW#q*|.)g@o}||wf~@C-YSt}(dh_r6EbI#A,y|nU2{B#JBW'); + * define('SECURE_AUTH_SALT', '!=oLUTXh,QW=H `}`L|9/^4-3 STz},T(w}W*c(u`g~EJBf#8u#R{mUEZrozmm'); + * define('NONCE_SALT', 'h`GXHhD>SLWVfg1(1(N{;.V!MoE(SfbA_ksP@&`+AycHcAV$+?@3q+rxV{%^VyKT'); * * - * Attention: Do not use above example! - * - * Salting passwords helps against tools which has stored hashed values - * of common dictionary strings. The added values makes it harder to crack - * if given salt string is not weak. + * Salting passwords helps against tools which has stored hashed values of + * common dictionary strings. The added values makes it harder to crack. * - * Salting only helps if the string is not predictable and should be - * made up of various characters. Think of the salt as a password for - * securing your passwords, but common among all of your passwords. - * Therefore the salt should be as long as possible as as difficult as - * possible, because you will not have to remember it. + * @since 2.5.0 * - * @since 2.5 + * @link https://api.wordpress.org/secret-key/1.1/salt/ Create secrets for wp-config.php * - * @return string Salt value from either 'SECRET_KEY' or 'secret' option + * @param string $scheme Authentication scheme (auth, secure_auth, logged_in, nonce) + * @return string Salt value */ -function wp_salt() { - global $wp_default_secret_key; - $secret_key = ''; - if ( defined('SECRET_KEY') && ('' != SECRET_KEY) && ( $wp_default_secret_key != SECRET_KEY) ) - $secret_key = SECRET_KEY; +function wp_salt( $scheme = 'auth' ) { + static $cached_salts = array(); + if ( isset( $cached_salts[ $scheme ] ) ) { + /** + * Filter the WordPress salt. + * + * @since 2.5.0 + * + * @param string $cached_salt Cached salt for the given scheme. + * @param string $scheme Authentication scheme. Values include 'auth', + * 'secure_auth', 'logged_in', and 'nonce'. + */ + return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); + } - if ( defined('SECRET_SALT') ) { + static $duplicated_keys; + if ( null === $duplicated_keys ) { + $duplicated_keys = array( 'put your unique phrase here' => true ); + foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { + foreach ( array( 'KEY', 'SALT' ) as $second ) { + if ( ! defined( "{$first}_{$second}" ) ) + continue; + $value = constant( "{$first}_{$second}" ); + $duplicated_keys[ $value ] = isset( $duplicated_keys[ $value ] ); + } + } + } + + $key = $salt = ''; + if ( defined( 'SECRET_KEY' ) && SECRET_KEY && empty( $duplicated_keys[ SECRET_KEY ] ) ) + $key = SECRET_KEY; + if ( 'auth' == $scheme && defined( 'SECRET_SALT' ) && SECRET_SALT && empty( $duplicated_keys[ SECRET_SALT ] ) ) $salt = SECRET_SALT; + + if ( in_array( $scheme, array( 'auth', 'secure_auth', 'logged_in', 'nonce' ) ) ) { + foreach ( array( 'key', 'salt' ) as $type ) { + $const = strtoupper( "{$scheme}_{$type}" ); + if ( defined( $const ) && constant( $const ) && empty( $duplicated_keys[ constant( $const ) ] ) ) { + $$type = constant( $const ); + } elseif ( ! $$type ) { + $$type = get_site_option( "{$scheme}_{$type}" ); + if ( ! $$type ) { + $$type = wp_generate_password( 64, true, true ); + update_site_option( "{$scheme}_{$type}", $$type ); + } + } + } } else { - $salt = get_option('secret'); - if ( empty($salt) ) { - $salt = wp_generate_password(); - update_option('secret', $salt); + if ( ! $key ) { + $key = get_site_option( 'secret_key' ); + if ( ! $key ) { + $key = wp_generate_password( 64, true, true ); + update_site_option( 'secret_key', $key ); + } } + $salt = hash_hmac( 'md5', $scheme, $key ); } - return apply_filters('salt', $secret_key . $salt); + $cached_salts[ $scheme ] = $key . $salt; + + /** This filter is documented in wp-includes/pluggable.php */ + return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); } endif; if ( !function_exists('wp_hash') ) : /** - * wp_hash() - Get hash of given string + * Get hash of given string. * - * @since 2.0.4 + * @since 2.0.3 * @uses wp_salt() Get WordPress salt * * @param string $data Plain text to hash * @return string Hash of $data */ -function wp_hash($data) { - $salt = wp_salt(); +function wp_hash($data, $scheme = 'auth') { + $salt = wp_salt($scheme); return hash_hmac('md5', $data, $salt); } @@ -1082,13 +1816,13 @@ endif; if ( !function_exists('wp_hash_password') ) : /** - * wp_hash_password() - Create a hash (encrypt) of a plain text password + * Create a hash (encrypt) of a plain text password. + * + * For integration with other applications, this function can be overwritten to + * instead use the other package password checking algorithm. * - * For integration with other applications, this function can be - * overwritten to instead use the other package password checking - * algorithm. + * @since 2.5.0 * - * @since 2.5 * @global object $wp_hasher PHPass object * @uses PasswordHash::HashPassword * @@ -1101,28 +1835,27 @@ function wp_hash_password($password) { if ( empty($wp_hasher) ) { require_once( ABSPATH . 'wp-includes/class-phpass.php'); // By default, use the portable hash from phpass - $wp_hasher = new PasswordHash(8, TRUE); + $wp_hasher = new PasswordHash(8, true); } - return $wp_hasher->HashPassword($password); + return $wp_hasher->HashPassword( trim( $password ) ); } endif; if ( !function_exists('wp_check_password') ) : /** - * wp_check_password() - Checks the plaintext password against the encrypted Password + * Checks the plaintext password against the encrypted Password. * - * Maintains compatibility between old version and the new cookie - * authentication protocol using PHPass library. The $hash parameter - * is the encrypted password and the function compares the plain text - * password when encypted similarly against the already encrypted - * password to see if they match. + * Maintains compatibility between old version and the new cookie authentication + * protocol using PHPass library. The $hash parameter is the encrypted password + * and the function compares the plain text password when encrypted similarly + * against the already encrypted password to see if they match. * - * For integration with other applications, this function can be - * overwritten to instead use the other package password checking - * algorithm. + * For integration with other applications, this function can be overwritten to + * instead use the other package password checking algorithm. + * + * @since 2.5.0 * - * @since 2.5 * @global object $wp_hasher PHPass object used for checking the password * against the $hash + $password * @uses PasswordHash::CheckPassword @@ -1143,7 +1876,16 @@ function wp_check_password($password, $hash, $user_id = '') { $hash = wp_hash_password($password); } - return apply_filters('check_password', $check, $password, $hash, $user_id); + /** + * Filter whether the plaintext password matches the encrypted password. + * + * @since 2.5.0 + * + * @param bool $check Whether the passwords match. + * @param string $hash The hashed password. + * @param int $user_id User ID. + */ + return apply_filters( 'check_password', $check, $password, $hash, $user_id ); } // If the stored hash is longer than an MD5, presume the @@ -1151,41 +1893,107 @@ function wp_check_password($password, $hash, $user_id = '') { if ( empty($wp_hasher) ) { require_once( ABSPATH . 'wp-includes/class-phpass.php'); // By default, use the portable hash from phpass - $wp_hasher = new PasswordHash(8, TRUE); + $wp_hasher = new PasswordHash(8, true); } $check = $wp_hasher->CheckPassword($password, $hash); - return apply_filters('check_password', $check, $password, $hash, $user_id); + /** This filter is documented in wp-includes/pluggable.php */ + return apply_filters( 'check_password', $check, $password, $hash, $user_id ); } endif; if ( !function_exists('wp_generate_password') ) : /** - * wp_generate_password() - Generates a random password drawn from the defined set of characters + * Generates a random password drawn from the defined set of characters. * - * @since 2.5 + * @since 2.5.0 * + * @param int $length The length of password to generate + * @param bool $special_chars Whether to include standard special characters. Default true. + * @param bool $extra_special_chars Whether to include other special characters. Used when + * generating secret keys and salts. Default false. * @return string The random password **/ -function wp_generate_password($length = 12) { - $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()"; +function wp_generate_password( $length = 12, $special_chars = true, $extra_special_chars = false ) { + $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; + if ( $special_chars ) + $chars .= '!@#$%^&*()'; + if ( $extra_special_chars ) + $chars .= '-_ []{}<>~`+=,.;:/?|'; + $password = ''; - for ( $i = 0; $i < $length; $i++ ) - $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); - return $password; + for ( $i = 0; $i < $length; $i++ ) { + $password .= substr($chars, wp_rand(0, strlen($chars) - 1), 1); + } + + /** + * Filter the randomly-generated password. + * + * @since 3.0.0 + * + * @param string $password The generated password. + */ + return apply_filters( 'random_password', $password ); +} +endif; + +if ( !function_exists('wp_rand') ) : +/** + * Generates a random number + * + * @since 2.6.2 + * + * @param int $min Lower limit for the generated number + * @param int $max Upper limit for the generated number + * @return int A random number between min and max + */ +function wp_rand( $min = 0, $max = 0 ) { + global $rnd_value; + + // Reset $rnd_value after 14 uses + // 32(md5) + 40(sha1) + 40(sha1) / 8 = 14 random numbers from $rnd_value + if ( strlen($rnd_value) < 8 ) { + if ( defined( 'WP_SETUP_CONFIG' ) ) + static $seed = ''; + else + $seed = get_transient('random_seed'); + $rnd_value = md5( uniqid(microtime() . mt_rand(), true ) . $seed ); + $rnd_value .= sha1($rnd_value); + $rnd_value .= sha1($rnd_value . $seed); + $seed = md5($seed . $rnd_value); + if ( ! defined( 'WP_SETUP_CONFIG' ) ) + set_transient('random_seed', $seed); + } + + // Take the first 8 digits for our value + $value = substr($rnd_value, 0, 8); + + // Strip the first eight, leaving the remainder for the next call to wp_rand(). + $rnd_value = substr($rnd_value, 8); + + $value = abs(hexdec($value)); + + // Some misconfigured 32bit environments (Entropy PHP, for example) truncate integers larger than PHP_INT_MAX to PHP_INT_MAX rather than overflowing them to floats. + $max_random_number = 3000000000 === 2147483647 ? (float) "4294967295" : 4294967295; // 4294967295 = 0xffffffff + + // Reduce the value to be within the min - max range + if ( $max != 0 ) + $value = $min + ( $max - $min + 1 ) * $value / ( $max_random_number + 1 ); + + return abs(intval($value)); } endif; if ( !function_exists('wp_set_password') ) : /** - * wp_set_password() - Updates the user's password with a new encrypted one + * Updates the user's password with a new encrypted one. + * + * For integration with other applications, this function can be overwritten to + * instead use the other package password checking algorithm. * - * For integration with other applications, this function can be - * overwritten to instead use the other package password checking - * algorithm. + * @since 2.5.0 * - * @since 2.5 * @uses $wpdb WordPress database object for queries * @uses wp_hash_password() Used to encrypt the user's password before passing to the database * @@ -1195,29 +2003,34 @@ if ( !function_exists('wp_set_password') ) : function wp_set_password( $password, $user_id ) { global $wpdb; - $hash = wp_hash_password($password); - $query = $wpdb->prepare("UPDATE $wpdb->users SET user_pass = %s, user_activation_key = '' WHERE ID = %d", $hash, $user_id); - $wpdb->query($query); + $hash = wp_hash_password( $password ); + $wpdb->update($wpdb->users, array('user_pass' => $hash, 'user_activation_key' => ''), array('ID' => $user_id) ); + wp_cache_delete($user_id, 'users'); } endif; if ( !function_exists( 'get_avatar' ) ) : /** - * get_avatar() - Get avatar for a user + * Retrieve the avatar for a user who provided a user ID or email address. * - * Retrieve the avatar for a user provided a user ID or email address + * @since 2.5.0 * - * @since 2.5 * @param int|string|object $id_or_email A user ID, email address, or comment object * @param int $size Size of the avatar image * @param string $default URL to a default image to use if no avatar is available + * @param string $alt Alternative text to use in image tag. Defaults to blank * @return string tag for the user's avatar */ -function get_avatar( $id_or_email, $size = '96', $default = '' ) { +function get_avatar( $id_or_email, $size = '96', $default = '', $alt = false ) { if ( ! get_option('show_avatars') ) return false; + if ( false === $alt) + $safe_alt = ''; + else + $safe_alt = esc_attr( $alt ); + if ( !is_numeric($size) ) $size = '96'; @@ -1228,24 +2041,68 @@ function get_avatar( $id_or_email, $size = '96', $default = '' ) { if ( $user ) $email = $user->user_email; } elseif ( is_object($id_or_email) ) { - if ( !empty($id_or_email->user_id) ) { + // No avatar for pingbacks or trackbacks + + /** + * Filter the list of allowed comment types for retrieving avatars. + * + * @since 3.0.0 + * + * @param array $types An array of content types. Default only contains 'comment'. + */ + $allowed_comment_types = apply_filters( 'get_avatar_comment_types', array( 'comment' ) ); + if ( ! empty( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (array) $allowed_comment_types ) ) + return false; + + if ( ! empty( $id_or_email->user_id ) ) { $id = (int) $id_or_email->user_id; $user = get_userdata($id); - if ( $user) + if ( $user ) $email = $user->user_email; - } elseif ( !empty($id_or_email->comment_author_email) ) { - $email = $id_or_email->comment_author_email; } + + if ( ! $email && ! empty( $id_or_email->comment_author_email ) ) + $email = $id_or_email->comment_author_email; } else { $email = $id_or_email; } - if ( empty($default) ) - $default = "http://www.gravatar.com/avatar/ad516503a11cd5ca435acc9bb6523536?s=$size"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com') + if ( empty($default) ) { + $avatar_default = get_option('avatar_default'); + if ( empty($avatar_default) ) + $default = 'mystery'; + else + $default = $avatar_default; + } + + if ( !empty($email) ) + $email_hash = md5( strtolower( trim( $email ) ) ); + + if ( is_ssl() ) { + $host = 'https://secure.gravatar.com'; + } else { + if ( !empty($email) ) + $host = sprintf( "http://%d.gravatar.com", ( hexdec( $email_hash[0] ) % 2 ) ); + else + $host = 'http://0.gravatar.com'; + } + + if ( 'mystery' == $default ) + $default = "$host/avatar/ad516503a11cd5ca435acc9bb6523536?s={$size}"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com') + elseif ( 'blank' == $default ) + $default = $email ? 'blank' : includes_url( 'images/blank.gif' ); + elseif ( !empty($email) && 'gravatar_default' == $default ) + $default = ''; + elseif ( 'gravatar_default' == $default ) + $default = "$host/avatar/?s={$size}"; + elseif ( empty($email) ) + $default = "$host/avatar/?d=$default&s={$size}"; + elseif ( strpos($default, 'http://') === 0 ) + $default = add_query_arg( 's', $size, $default ); if ( !empty($email) ) { - $out = 'http://www.gravatar.com/avatar/'; - $out .= md5( strtolower( $email ) ); + $out = "$host/avatar/"; + $out .= $email_hash; $out .= '?s='.$size; $out .= '&d=' . urlencode( $default ); @@ -1253,101 +2110,132 @@ function get_avatar( $id_or_email, $size = '96', $default = '' ) { if ( !empty( $rating ) ) $out .= "&r={$rating}"; - $avatar = ""; + $out = str_replace( '&', '&', esc_url( $out ) ); + $avatar = "{$safe_alt}"; } else { - $avatar = ""; + $out = esc_url( $default ); + $avatar = "{$safe_alt}"; } - return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default); + /** + * Filter the avatar to retrieve. + * + * @since 2.5.0 + * + * @param string $avatar Image tag for the user's avatar. + * @param int|object|string $id_or_email A user ID, email address, or comment object. + * @param int $size Square avatar width and height in pixels to retrieve. + * @param string $alt Alternative text to use in the avatar image tag. + * Default empty. + */ + return apply_filters( 'get_avatar', $avatar, $id_or_email, $size, $default, $alt ); } endif; -if ( !function_exists('wp_setcookie') ) : +if ( !function_exists( 'wp_text_diff' ) ) : /** - * wp_setcookie() - Sets a cookie for a user who just logged in - * - * @since 1.5 - * @deprecated Use wp_set_auth_cookie() - * @see wp_set_auth_cookie() - * - * @param string $username The user's username - * @param string $password Optional. The user's password - * @param bool $already_md5 Optional. Whether the password has already been through MD5 - * @param string $home Optional. Will be used instead of COOKIEPATH if set - * @param string $siteurl Optional. Will be used instead of SITECOOKIEPATH if set - * @param bool $remember Optional. Remember that the user is logged in - */ -function wp_setcookie($username, $password = '', $already_md5 = false, $home = '', $siteurl = '', $remember = false) { - _deprecated_function( __FUNCTION__, '2.5', 'wp_set_auth_cookie()' ); - $user = get_userdatabylogin($username); - wp_set_auth_cookie($user->ID, $remember); -} -endif; - -if ( !function_exists('wp_clearcookie') ) : -/** - * wp_clearcookie() - Clears the authentication cookie, logging the user out + * Displays a human readable HTML representation of the difference between two strings. * - * @since 1.5 - * @deprecated Use wp_clear_auth_cookie() - * @see wp_clear_auth_cookie() - */ -function wp_clearcookie() { - _deprecated_function( __FUNCTION__, '2.5', 'wp_clear_auth_cookie()' ); - wp_clear_auth_cookie(); -} -endif; - -if ( !function_exists('wp_get_cookie_login') ): -/** - * wp_get_cookie_login() - Gets the user cookie login + * The Diff is available for getting the changes between versions. The output is + * HTML, so the primary use is for displaying the changes. If the two strings + * are equivalent, then an empty string will be returned. + * + * The arguments supported and can be changed are listed below. * - * This function is deprecated and should no longer be extended as it won't - * be used anywhere in WordPress. Also, plugins shouldn't use it either. + * 'title' : Default is an empty string. Titles the diff in a manner compatible + * with the output. + * 'title_left' : Default is an empty string. Change the HTML to the left of the + * title. + * 'title_right' : Default is an empty string. Change the HTML to the right of + * the title. * - * @since 2.0.4 - * @deprecated No alternative + * @since 2.6.0 * - * @return bool Always returns false + * @see wp_parse_args() Used to change defaults to user defined settings. + * @uses Text_Diff + * @uses WP_Text_Diff_Renderer_Table + * + * @param string $left_string "old" (left) version of string + * @param string $right_string "new" (right) version of string + * @param string|array $args Optional. Change 'title', 'title_left', and 'title_right' defaults. + * @return string Empty string if strings are equivalent or HTML with differences. */ -function wp_get_cookie_login() { - _deprecated_function( __FUNCTION__, '2.5', '' ); - return false; +function wp_text_diff( $left_string, $right_string, $args = null ) { + $defaults = array( 'title' => '', 'title_left' => '', 'title_right' => '' ); + $args = wp_parse_args( $args, $defaults ); + + if ( !class_exists( 'WP_Text_Diff_Renderer_Table' ) ) + require( ABSPATH . WPINC . '/wp-diff.php' ); + + $left_string = normalize_whitespace($left_string); + $right_string = normalize_whitespace($right_string); + + $left_lines = explode("\n", $left_string); + $right_lines = explode("\n", $right_string); + $text_diff = new Text_Diff($left_lines, $right_lines); + $renderer = new WP_Text_Diff_Renderer_Table( $args ); + $diff = $renderer->render($text_diff); + + if ( !$diff ) + return ''; + + $r = "\n"; + + if ( ! empty( $args[ 'show_split_view' ] ) ) { + $r .= ""; + } else { + $r .= ""; + } + + if ( $args['title'] || $args['title_left'] || $args['title_right'] ) + $r .= ""; + if ( $args['title'] ) + $r .= "\n"; + if ( $args['title_left'] || $args['title_right'] ) { + $r .= "\n"; + $r .= "\t\n"; + $r .= "\t\n"; + $r .= "\n"; + } + if ( $args['title'] || $args['title_left'] || $args['title_right'] ) + $r .= "\n"; + + $r .= "\n$diff\n\n"; + $r .= "
$args[title]
$args[title_left]$args[title_right]
"; + + return $r; } endif; -if ( !function_exists('wp_login') ) : +if ( ! function_exists( 'hash_equals' ) ) : /** - * wp_login() - Checks a users login information and logs them in if it checks out + * Compare two strings in constant time. * - * Use the global $error to get the reason why the login failed. - * If the username is blank, no error will be set, so assume - * blank username on that case. + * This function is NOT pluggable. It is in this file (in addition to + * compat.php) to prevent errors if, during an update, pluggable.php + * copies over but compat.php does not. * - * Plugins extending this function should also provide the global - * $error and set what the error is, so that those checking the - * global for why there was a failure can utilize it later. + * This function was added in PHP 5.6. + * It can leak the length of a string. * - * @since 1.2.2 - * @deprecated Use wp_signon() - * @global string $error Error when false is returned + * @since 3.9.2 * - * @param string $username User's username - * @param string $password User's password - * @param bool $deprecated Not used - * @return bool False on login failure, true on successful check + * @param string $a Expected string. + * @param string $b Actual string. + * @return bool Whether strings are equal. */ -function wp_login($username, $password, $deprecated = '') { - global $error; - - $user = wp_authenticate($username, $password); +function hash_equals( $a, $b ) { + $a_length = strlen( $a ); + if ( $a_length !== strlen( $b ) ) { + return false; + } + $result = 0; - if ( ! is_wp_error($user) ) - return true; + // Do not attempt to "optimize" this. + for ( $i = 0; $i < $a_length; $i++ ) { + $result |= ord( $a[ $i ] ) ^ ord( $b[ $i ] ); + } - $error = $user->get_error_message(); - return false; + return $result === 0; } endif; - -?>