ID) ) return $current_user; $current_user = new WP_User($id, $name); setup_userdata($current_user->ID); do_action('set_current_user'); return $current_user; } endif; if ( !function_exists('wp_get_current_user') ) : /** * Retrieve the current user object. * * @since 2.0.3 * * @return WP_User Current user WP_User object */ function wp_get_current_user() { global $current_user; get_currentuserinfo(); return $current_user; } endif; if ( !function_exists('get_currentuserinfo') ) : /** * 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. * * @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 */ function get_currentuserinfo() { global $current_user; if ( defined('XMLRPC_REQUEST') && XMLRPC_REQUEST ) return false; if ( ! empty($current_user) ) return; if ( ! $user = wp_validate_auth_cookie() ) { if ( is_admin() || empty($_COOKIE[LOGGED_IN_COOKIE]) || !$user = wp_validate_auth_cookie($_COOKIE[LOGGED_IN_COOKIE], 'logged_in') ) { wp_set_current_user(0); return false; } } wp_set_current_user($user); } endif; if ( !function_exists('get_userdata') ) : /** * 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 */ 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; } endif; if ( !function_exists('get_user_by') ) : /** * Retrieve user info by a given field * * @since 2.8.0 * * @param string $field The field to retrieve the user with. id | slug | email | login * @param int|string $value A value for $field. A user ID, slug, email address, or login name. * @return bool|object False on failure, User DB row object */ function get_user_by($field, $value) { global $wpdb; switch ($field) { case 'id': return get_userdata($value); break; case 'slug': $user_id = wp_cache_get($value, 'userslugs'); $field = 'user_nicename'; break; case 'email': $user_id = wp_cache_get($value, 'useremail'); $field = 'user_email'; break; case 'login': $value = sanitize_user( $value ); $user_id = wp_cache_get($value, 'userlogins'); $field = 'user_login'; break; default: return false; } if ( false !== $user_id ) return get_userdata($user_id); if ( !$user = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->users WHERE $field = %s", $value) ) ) return false; _fill_user($user); return $user; } endif; if ( !function_exists('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) { return get_user_by('login', $user_login); } endif; if ( !function_exists('get_user_by_email') ) : /** * Retrieve user info by email. * * @since 2.5 * * @param string $email User's email address * @return bool|object False on failure, User DB row object */ function get_user_by_email($email) { return get_user_by('email', $email); } endif; if ( !function_exists( 'wp_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. * * 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 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|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 = '', $attachments = array() ) { // Compact the input, apply the filters, and extract them back out extract( apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) ) ); if ( !is_array($attachments) ) $attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) ); global $phpmailer; // (Re)create it, if it's gone missing 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(); } // Headers if ( empty( $headers ) ) { $headers = array(); } 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(); // If it's actually got contents if ( !empty( $tempheaders ) ) { // Iterate through the raw headers 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 ); $content = 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 ) ) $from_name = 'WordPress'; /* If we don't have an email from the input headers default to wordpress@$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'] ); if ( substr( $sitename, 0, 4 ) == 'www.' ) { $sitename = substr( $sitename, 4 ); } $from_email = 'wordpress@' . $sitename; } // Plugin authors can override the potentially troublesome default $phpmailer->From = apply_filters( 'wp_mail_from' , $from_email ); $phpmailer->FromName = apply_filters( 'wp_mail_from_name', $from_name ); // Set destination addresses if ( !is_array( $to ) ) $to = explode( ',', $to ); foreach ( (array) $to as $recipient ) { $phpmailer->AddAddress( trim( $recipient ) ); } // Set mail's subject and body $phpmailer->Subject = $subject; $phpmailer->Body = $message; // Add any CC and BCC recipients if ( !empty( $cc ) ) { foreach ( (array) $cc as $recipient ) { $phpmailer->AddCc( trim($recipient) ); } } if ( !empty( $bcc ) ) { foreach ( (array) $bcc as $recipient) { $phpmailer->AddBcc( trim($recipient) ); } } // 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 ) ) $content_type = 'text/plain'; $content_type = apply_filters( 'wp_mail_content_type', $content_type ); $phpmailer->ContentType = $content_type; // Set whether it's plaintext, depending on $content_type if ( 'text/html' == $content_type ) $phpmailer->IsHTML( true ); // If we don't have a charset from the input headers if ( !isset( $charset ) ) $charset = get_bloginfo( 'charset' ); // Set the content-type and charset $phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset ); // Set custom headers if ( !empty( $headers ) ) { 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 ) { $phpmailer->AddAttachment($attachment); } } do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) ); // Send! $result = @$phpmailer->Send(); return $result; } endif; if ( !function_exists('wp_authenticate') ) : /** * 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 $password User's password * @return WP_Error|WP_User WP_User object if login successful, otherwise WP_Error object. */ function wp_authenticate($username, $password) { $username = sanitize_user($username); $password = trim($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.')); } $ignore_codes = array('empty_username', 'empty_password'); if (is_wp_error($user) && !in_array($user->get_error_code(), $ignore_codes) ) { do_action('wp_login_failed', $username); } return $user; } endif; if ( !function_exists('wp_logout') ) : /** * Log the current user out. * * @since 2.5.0 */ function wp_logout() { wp_clear_auth_cookie(); do_action('wp_logout'); } endif; if ( !function_exists('wp_validate_auth_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). * * Makes sure the cookie is not expired. Verifies the hash in cookie is what is * should be and compares the two. * * @since 2.5 * * @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 = '', $scheme = '') { if ( ! $cookie_elements = wp_parse_auth_cookie($cookie, $scheme) ) { do_action('auth_cookie_malformed', $cookie, $scheme); return false; } extract($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; // Quick check to see if an honest cookie has expired if ( $expired < time() ) { do_action('auth_cookie_expired', $cookie_elements); return false; } $user = get_userdatabylogin($username); if ( ! $user ) { do_action('auth_cookie_bad_username', $cookie_elements); return false; } $pass_frag = substr($user->user_pass, 8, 4); $key = wp_hash($username . $pass_frag . '|' . $expiration, $scheme); $hash = hash_hmac('md5', $username . '|' . $expiration, $key); if ( $hmac != $hash ) { do_action('auth_cookie_bad_hash', $cookie_elements); return false; } if ( $expiration < time() ) // AJAX/POST grace period set above $GLOBALS['login_grace_period'] = 1; do_action('auth_cookie_valid', $cookie_elements, $user); return $user->ID; } endif; if ( !function_exists('wp_generate_auth_cookie') ) : /** * Generate authentication cookie contents. * * @since 2.5 * @uses apply_filters() Calls 'auth_cookie' hook on $cookie contents, User ID * and expiration of cookie. * * @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, $scheme = 'auth') { $user = get_userdata($user_id); $pass_frag = substr($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, $scheme); } endif; if ( !function_exists('wp_parse_auth_cookie') ) : /** * Parse a cookie into its components * * @since 2.7 * * @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') ) : /** * Sets the authentication cookies based 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. * * @since 2.5 * * @param int $user_id User ID * @param bool $remember Whether to remember the user */ function wp_set_auth_cookie($user_id, $remember = false, $secure = '') { if ( $remember ) { $expiration = $expire = time() + apply_filters('auth_cookie_expiration', 1209600, $user_id, $remember); } else { $expiration = time() + apply_filters('auth_cookie_expiration', 172800, $user_id, $remember); $expire = 0; } if ( '' === $secure ) $secure = is_ssl() ? true : false; if ( $secure ) { $auth_cookie_name = SECURE_AUTH_COOKIE; $scheme = 'secure_auth'; } else { $auth_cookie_name = AUTH_COOKIE; $scheme = 'auth'; } $auth_cookie = wp_generate_auth_cookie($user_id, $expiration, $scheme); $logged_in_cookie = wp_generate_auth_cookie($user_id, $expiration, 'logged_in'); do_action('set_auth_cookie', $auth_cookie, $expire, $expiration, $user_id, $scheme); do_action('set_logged_in_cookie', $logged_in_cookie, $expire, $expiration, $user_id, 'logged_in'); // Set httponly if the php version is >= 5.2.0 if ( version_compare(phpversion(), '5.2.0', 'ge') ) { setcookie($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, false, true); if ( COOKIEPATH != SITECOOKIEPATH ) setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, COOKIE_DOMAIN, false, true); } else { $cookie_domain = COOKIE_DOMAIN; if ( !empty($cookie_domain) ) $cookie_domain .= '; HttpOnly'; setcookie($auth_cookie_name, $auth_cookie, $expire, PLUGINS_COOKIE_PATH, $cookie_domain, $secure); setcookie($auth_cookie_name, $auth_cookie, $expire, ADMIN_COOKIE_PATH, $cookie_domain, $secure); setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, COOKIEPATH, $cookie_domain); if ( COOKIEPATH != SITECOOKIEPATH ) setcookie(LOGGED_IN_COOKIE, $logged_in_cookie, $expire, SITECOOKIEPATH, $cookie_domain); } } endif; if ( !function_exists('wp_clear_auth_cookie') ) : /** * Removes all of the cookies associated with authentication. * * @since 2.5 */ function wp_clear_auth_cookie() { do_action('clear_auth_cookie'); setcookie(AUTH_COOKIE, ' ', time() - 31536000, ADMIN_COOKIE_PATH, COOKIE_DOMAIN); setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, ADMIN_COOKIE_PATH, COOKIE_DOMAIN); setcookie(AUTH_COOKIE, ' ', time() - 31536000, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN); setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, PLUGINS_COOKIE_PATH, COOKIE_DOMAIN); setcookie(LOGGED_IN_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); setcookie(LOGGED_IN_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); // Old cookies setcookie(AUTH_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); setcookie(AUTH_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, COOKIEPATH, COOKIE_DOMAIN); setcookie(SECURE_AUTH_COOKIE, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_DOMAIN); // Even older 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); } endif; if ( !function_exists('is_user_logged_in') ) : /** * Checks if the current visitor is a logged in user. * * @since 2.0.0 * * @return bool True if user is logged in, false if not logged in. */ function is_user_logged_in() { $user = wp_get_current_user(); if ( $user->id == 0 ) return false; return true; } endif; if ( !function_exists('auth_redirect') ) : /** * Checks if a user is logged in, if not it redirects them to the login page. * * @since 1.5 */ function auth_redirect() { // Checks if a user is logged in, if not redirects them to the login page if ( is_ssl() || force_ssl_admin() ) $secure = true; else $secure = false; // 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(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI'])); exit(); } else { wp_redirect('https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); exit(); } } if ( $user_id = wp_validate_auth_cookie( '', apply_filters( 'auth_redirect_scheme', '' ) ) ) { 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(preg_replace('|^http://|', 'https://', $_SERVER['REQUEST_URI'])); 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(); if ( is_ssl() ) $proto = 'https://'; else $proto = 'http://'; $redirect = ( strpos($_SERVER['REQUEST_URI'], '/options.php') && wp_get_referer() ) ? wp_get_referer() : $proto . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; $login_url = wp_login_url($redirect); wp_redirect($login_url); exit(); } endif; if ( !function_exists('check_admin_referer') ) : /** * 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(admin_url()); $referer = strtolower(wp_get_referer()); $result = isset($_REQUEST[$query_arg]) ? wp_verify_nonce($_REQUEST[$query_arg], $action) : false; if ( !$result && !(-1 == $action && strpos($referer, $adminurl) !== false) ) { wp_nonce_ays($action); die(); } do_action('check_admin_referer', $action, $result); return $result; }endif; if ( !function_exists('check_ajax_referer') ) : /** * Verifies the AJAX request to prevent processing requests external of the blog. * * @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 $nonce = isset($_REQUEST['_ajax_nonce']) ? $_REQUEST['_ajax_nonce'] : $_REQUEST['_wpnonce']; $result = wp_verify_nonce( $nonce, $action ); if ( $die && false == $result ) die('-1'); do_action('check_ajax_referer', $action, $result); return $result; } endif; if ( !function_exists('wp_redirect') ) : /** * Redirects to another page, with a workaround for the IIS Set-Cookie bug. * * @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 $location is not set */ function wp_redirect($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 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", true, $status); } } endif; if ( !function_exists('wp_sanitize_redirect') ) : /** * Sanitizes a URL for use in a redirect. * * @since 2.3 * * @return string redirect-sanitized URL **/ function wp_sanitize_redirect($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', '%0D', '%0A'); $location = _deep_replace($strip, $location); return $location; } endif; if ( !function_exists('wp_safe_redirect') ) : /** * Performs a safe (local) redirect, using wp_redirect(). * * Checks whether the $location is using an allowed host, if it has an absolute * path. A plugin can therefore set or remove allowed host(s) to or from the * list. * * If the host is not allowed, then the redirect is to wp-admin on the siteurl * instead. This prevents malicious redirects which redirect to another host, * but only used in a few places. * * @since 2.3 * @uses wp_validate_redirect() To validate the redirect is to an allowed host. * * @return void Does not return anything **/ function wp_safe_redirect($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 * @uses apply_filters() Calls 'allowed_redirect_hosts' on an array containing * WordPress host string and $location host string. * * @param string $location The redirect to validate * @param string $default The value to return is $location is not allowed * @return string redirect-sanitized URL **/ function wp_validate_redirect($location, $default = '') { // browsers will assume 'http' is your protocol, and will obey a redirect to a URL starting with '//' if ( substr($location, 0, 2) == '//' ) $location = 'http:' . $location; // 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); $wpp = parse_url(home_url()); $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : ''); if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) ) $location = $default; return $location; } endif; if ( ! function_exists('wp_notify_postauthor') ) : /** * Notify an author of a comment/trackback/pingback to one of their posts. * * @since 1.0.0 * * @param int $comment_id Comment ID * @param string $comment_type Optional. The comment type either 'comment' (default), 'trackback', or 'pingback' * @return bool False if user email does not exist. True on completion. */ function wp_notify_postauthor($comment_id, $comment_type='') { $comment = get_comment($comment_id); $post = get_post($comment->comment_post_ID); $user = get_userdata( $post->post_author ); if ( $comment->user_id == $post->post_author ) return false; // The author moderated a comment on his own post if ('' == $user->user_email) return false; // If there's no email to send the comment to $comment_author_domain = @gethostbyaddr($comment->comment_author_IP); // 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); if ( empty( $comment_type ) ) $comment_type = 'comment'; if ('comment' == $comment_type) { $notify_message = sprintf( __('New comment on your post "%s"'),$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://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"; /* translators: 1: blog name, 2: post title */ $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title ); } elseif ('trackback' == $comment_type) { $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 ); } elseif ('pingback' == $comment_type) { $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 ); } $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\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"; $wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME'])); if ( '' == $comment->comment_author ) { $from = "From: \"$blogname\" <$wp_email>"; if ( '' != $comment->comment_author_email ) $reply_to = "Reply-To: $comment->comment_author_email"; } else { $from = "From: \"$comment->comment_author\" <$wp_email>"; if ( '' != $comment->comment_author_email ) $reply_to = "Reply-To: \"$comment->comment_author_email\" <$comment->comment_author_email>"; } $message_headers = "$from\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n"; 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); return true; } endif; if ( !function_exists('wp_notify_moderator') ) : /** * Notifies the moderator of the blog about a new comment that is awaiting approval. * * @since 1.0 * @uses $wpdb * * @param int $comment_id Comment ID * @return bool Always returns true */ function wp_notify_moderator($comment_id) { global $wpdb; if( get_option( "moderation_notify" ) == 0 ) 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)); $comment_author_domain = @gethostbyaddr($comment->comment_author_IP); $comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'"); // 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 "%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 "%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 "%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 .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n"; break; } $notify_message .= sprintf( __('Approve it: %s'), admin_url("comment.php?action=approve&c=$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 ); $admin_email = get_option('admin_email'); $message_headers = ''; $notify_message = apply_filters('comment_moderation_text', $notify_message, $comment_id); $subject = apply_filters('comment_moderation_subject', $subject, $comment_id); $message_headers = apply_filters('comment_moderation_headers', $message_headers); @wp_mail($admin_email, $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 * * @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 ( $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') ) : /** * Notify the blog admin of a new user, normally via email. * * @since 2.0 * * @param int $user_id User ID * @param string $plaintext_pass Optional. The user's plaintext password */ function wp_new_user_notification($user_id, $plaintext_pass = '') { $user = new WP_User($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:'), $blogname) . "\r\n\r\n"; $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n"; $message .= sprintf(__('E-mail: %s'), $user_email) . "\r\n"; @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(__('Password: %s'), $plaintext_pass) . "\r\n"; $message .= wp_login_url() . "\r\n"; wp_mail($user_email, sprintf(__('[%s] Your username and password'), $blogname), $message); } endif; if ( !function_exists('wp_nonce_tick') ) : /** * 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. * * @since 2.5 * * @return int */ function wp_nonce_tick() { $nonce_life = apply_filters('nonce_life', 86400); return ceil(time() / ( $nonce_life / 2 )); } endif; if ( !function_exists('wp_verify_nonce') ) : /** * 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. * * @since 2.0.3 * * @param string $nonce Nonce that was used in the form to verify * @param string|int $action Should give context to what is taking place and be the same when nonce was created. * @return bool Whether the nonce check passed or failed. */ function wp_verify_nonce($nonce, $action = -1) { $user = wp_get_current_user(); $uid = (int) $user->id; $i = wp_nonce_tick(); // Nonce generated 0-12 hours ago if ( substr(wp_hash($i . $action . $uid, 'nonce'), -12, 10) == $nonce ) return 1; // Nonce generated 12-24 hours ago if ( substr(wp_hash(($i - 1) . $action . $uid, 'nonce'), -12, 10) == $nonce ) return 2; // Invalid nonce return false; } endif; if ( !function_exists('wp_create_nonce') ) : /** * Creates a random, one time use token. * * @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; $i = wp_nonce_tick(); return substr(wp_hash($i . $action . $uid, 'nonce'), -12, 10); } endif; if ( !function_exists('wp_salt') ) : /** * Get salt to add to hashes to help prevent attacks. * * The secret key is located in two places: the database in case the secret key * isn't defined in the second place, which is in the wp-config.php file. If you * are going to set the secret key, then you must do so in the wp-config.php * file. * * The secret key in the database is randomly generated and will be appended to * the secret key that is in wp-config.php file in some instances. It is * important to have the secret key defined or changed in wp-config.php. * * If you have installed WordPress 2.5 or later, then you will have the * SECRET_KEY defined in the wp-config.php already. You will want to change the * value in it because hackers will know what it is. If you have upgraded to * WordPress 2.5 or later version from a version before WordPress 2.5, then you * should add the constant to your wp-config.php file. * * Below is an example of how the SECRET_KEY constant is defined with a value. * You must not copy the below example and paste into your wp-config.php. If you * need an example, then you can have a * {@link https://api.wordpress.org/secret-key/1.1/ secret key created} for you. * * * define('SECRET_KEY', 'mAry1HadA15|\/|b17w55w1t3asSn09w'); * * * 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. * * @since 2.5 * @link https://api.wordpress.org/secret-key/1.1/ Create a Secret Key for wp-config.php * * @param string $scheme Authentication scheme * @return string Salt value */ function wp_salt($scheme = 'auth') { global $wp_default_secret_key; $secret_key = ''; if ( defined('SECRET_KEY') && ('' != SECRET_KEY) && ( $wp_default_secret_key != SECRET_KEY) ) $secret_key = SECRET_KEY; if ( 'auth' == $scheme ) { if ( defined('AUTH_KEY') && ('' != AUTH_KEY) && ( $wp_default_secret_key != AUTH_KEY) ) $secret_key = AUTH_KEY; if ( defined('AUTH_SALT') && ('' != AUTH_SALT) && ( $wp_default_secret_key != AUTH_SALT) ) { $salt = AUTH_SALT; } elseif ( defined('SECRET_SALT') && ('' != SECRET_SALT) && ( $wp_default_secret_key != SECRET_SALT) ) { $salt = SECRET_SALT; } else { $salt = get_option('auth_salt'); if ( empty($salt) ) { $salt = wp_generate_password( 64, true, true ); update_option('auth_salt', $salt); } } } elseif ( 'secure_auth' == $scheme ) { if ( defined('SECURE_AUTH_KEY') && ('' != SECURE_AUTH_KEY) && ( $wp_default_secret_key != SECURE_AUTH_KEY) ) $secret_key = SECURE_AUTH_KEY; if ( defined('SECURE_AUTH_SALT') && ('' != SECURE_AUTH_SALT) && ( $wp_default_secret_key != SECURE_AUTH_SALT) ) { $salt = SECURE_AUTH_SALT; } else { $salt = get_option('secure_auth_salt'); if ( empty($salt) ) { $salt = wp_generate_password( 64, true, true ); update_option('secure_auth_salt', $salt); } } } elseif ( 'logged_in' == $scheme ) { if ( defined('LOGGED_IN_KEY') && ('' != LOGGED_IN_KEY) && ( $wp_default_secret_key != LOGGED_IN_KEY) ) $secret_key = LOGGED_IN_KEY; if ( defined('LOGGED_IN_SALT') && ('' != LOGGED_IN_SALT) && ( $wp_default_secret_key != LOGGED_IN_SALT) ) { $salt = LOGGED_IN_SALT; } else { $salt = get_option('logged_in_salt'); if ( empty($salt) ) { $salt = wp_generate_password( 64, true, true ); update_option('logged_in_salt', $salt); } } } elseif ( 'nonce' == $scheme ) { if ( defined('NONCE_KEY') && ('' != NONCE_KEY) && ( $wp_default_secret_key != NONCE_KEY) ) $secret_key = NONCE_KEY; if ( defined('NONCE_SALT') && ('' != NONCE_SALT) && ( $wp_default_secret_key != NONCE_SALT) ) { $salt = NONCE_SALT; } else { $salt = get_option('nonce_salt'); if ( empty($salt) ) { $salt = wp_generate_password( 64, true, true ); update_option('nonce_salt', $salt); } } } else { // ensure each auth scheme has its own unique salt $salt = hash_hmac('md5', $scheme, $secret_key); } return apply_filters('salt', $secret_key . $salt, $scheme); } endif; if ( !function_exists('wp_hash') ) : /** * Get hash of given string. * * @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, $scheme = 'auth') { $salt = wp_salt($scheme); return hash_hmac('md5', $data, $salt); } endif; if ( !function_exists('wp_hash_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. * * @since 2.5 * @global object $wp_hasher PHPass object * @uses PasswordHash::HashPassword * * @param string $password Plain text user password to hash * @return string The hash string of the password */ function wp_hash_password($password) { global $wp_hasher; if ( empty($wp_hasher) ) { require_once( ABSPATH . 'wp-includes/class-phpass.php'); // By default, use the portable hash from phpass $wp_hasher = new PasswordHash(8, TRUE); } return $wp_hasher->HashPassword($password); } endif; if ( !function_exists('wp_check_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. * * For integration with other applications, this function can be overwritten to * instead use the other package password checking algorithm. * * @since 2.5 * @global object $wp_hasher PHPass object used for checking the password * against the $hash + $password * @uses PasswordHash::CheckPassword * * @param string $password Plaintext user's password * @param string $hash Hash of the user's password to check against. * @return bool False, if the $password does not match the hashed password */ function wp_check_password($password, $hash, $user_id = '') { global $wp_hasher; // If the hash is still md5... if ( strlen($hash) <= 32 ) { $check = ( $hash == md5($password) ); if ( $check && $user_id ) { // Rehash using new hash. wp_set_password($password, $user_id); $hash = wp_hash_password($password); } return apply_filters('check_password', $check, $password, $hash, $user_id); } // If the stored hash is longer than an MD5, presume the // new style phpass portable hash. if ( empty($wp_hasher) ) { require_once( ABSPATH . 'wp-includes/class-phpass.php'); // By default, use the portable hash from phpass $wp_hasher = new PasswordHash(8, TRUE); } $check = $wp_hasher->CheckPassword($password, $hash); return apply_filters('check_password', $check, $password, $hash, $user_id); } endif; if ( !function_exists('wp_generate_password') ) : /** * Generates a random password drawn from the defined set of characters. * * @since 2.5 * * @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, $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, wp_rand(0, strlen($chars) - 1), 1); } // random_password filter was previously in random_password function which was deprecated 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 (optional, default is 0) * @param int $max Upper limit for the generated number (optional, default is 4294967295) * @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)); // Reduce the value to be within the min - max range // 4294967295 = 0xffffffff = max random number if ( $max != 0 ) $value = $min + (($max - $min + 1) * ($value / (4294967295 + 1))); return abs(intval($value)); } endif; if ( !function_exists('wp_set_password') ) : /** * 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. * * @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 * * @param string $password The plaintext new user password * @param int $user_id User ID */ function wp_set_password( $password, $user_id ) { global $wpdb; $hash = wp_hash_password($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' ) ) : /** * Retrieve the avatar for a user who provided a user ID or email address. * * @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 Alternate 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 = '', $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'; $email = ''; if ( is_numeric($id_or_email) ) { $id = (int) $id_or_email; $user = get_userdata($id); if ( $user ) $email = $user->user_email; } elseif ( is_object($id_or_email) ) { // No avatar for pingbacks or trackbacks $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) $email = $user->user_email; } elseif ( !empty($id_or_email->comment_author_email) ) { $email = $id_or_email->comment_author_email; } } else { $email = $id_or_email; } if ( empty($default) ) { $avatar_default = get_option('avatar_default'); if ( empty($avatar_default) ) $default = 'mystery'; else $default = $avatar_default; } if ( !empty($email) ) $email_hash = md5( strtolower( $email ) ); if ( is_ssl() ) { $host = 'https://secure.gravatar.com'; } else { if ( !empty($email) ) $host = sprintf( "http://w%d.gravatar.com", ( hexdec( $email_hash{0} ) % 2 ) ); else $host = 'http://www.gravatar.com'; } if ( 'mystery' == $default ) $default = "$host/avatar/ad516503a11cd5ca435acc9bb6523536?s={$size}"; // ad516503a11cd5ca435acc9bb6523536 == md5('unknown@gravatar.com') elseif ( 'blank' == $default ) $default = includes_url('images/blank.gif'); elseif ( !empty($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) ) { $out = "$host/avatar/"; $out .= $email_hash; $out .= '?s='.$size; $out .= '&d=' . urlencode( $default ); $rating = get_option('avatar_rating'); if ( !empty( $rating ) ) $out .= "&r={$rating}"; $avatar = "{$safe_alt}"; } else { $avatar = "{$safe_alt}"; } return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default, $alt); } endif; if ( !function_exists( 'wp_text_diff' ) ) : /** * Displays a human readable HTML representation of the difference between two strings. * * 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. * * '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 2.6 * @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_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 = split("\n", $left_string); $right_lines = split("\n", $right_string); $text_diff = new Text_Diff($left_lines, $right_lines); $renderer = new WP_Text_Diff_Renderer_Table(); $diff = $renderer->render($text_diff); if ( !$diff ) return ''; $r = "\n"; $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;