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- <?php
- /**
- * These functions can be replaced via plugins. If plugins do not redefine these
- * functions, then these will be used instead.
- *
- * @package WordPress
- */
-
- if ( !function_exists('set_current_user') ) :
- /**
- * Changes the current user by ID or name.
- *
- * Set $id to null and specify a name if you do not know a user's ID.
- *
- * @since 2.0.1
- * @see wp_set_current_user() An alias of wp_set_current_user()
- *
- * @param int|null $id User ID.
- * @param string $name Optional. The user's username
- * @return object returns wp_set_current_user()
- */
- function set_current_user($id, $name = '') {
- return wp_set_current_user($id, $name);
- }
- endif;
-
- if ( !function_exists('wp_set_current_user') ) :
- /**
- * Changes the current user by ID or name.
- *
- * Set $id to null and specify a name if you do not know a user's ID.
- *
- * Some WordPress functionality is based on the current user and not based on
- * the signed in user. Therefore, it opens the ability to edit and perform
- * actions on users who aren't signed in.
- *
- * @since 2.0.4
- * @global object $current_user The current user object which holds the user data.
- * @uses do_action() Calls 'set_current_user' hook after setting the current user.
- *
- * @param int $id User ID
- * @param string $name User's username
- * @return WP_User Current user User object
- */
- function wp_set_current_user($id, $name = '') {
- global $current_user;
-
- if ( isset($current_user) && ($id == $current_user->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 2.0.4
- *
- * @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 ( ! $user = wp_validate_auth_cookie() ) {
- if ( empty($_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('update_user_cache') ) :
- /**
- * Updates a users cache when overridden by a plugin.
- *
- * Core function does nothing.
- *
- * @since 1.5
- *
- * @return bool Only returns true
- */
- function update_user_cache() {
- return true;
- }
- 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) {
- 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", $user_login)) )
- return false;
-
- _fill_user($user);
-
- return $user;
- }
- 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) {
- global $wpdb;
-
- $user_id = wp_cache_get($email, 'useremail');
-
- $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_email = %s", $email)) )
- return false;
-
- _fill_user($user);
-
- return $user;
- }
- 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 <email@address.com>' 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 $to Email address to send message
- * @param string $subject Email subject
- * @param string $message Message contents
- * @param string|array $headers Optional. Additional headers.
- * @return bool Whether the email contents were sent successfully.
- */
- function wp_mail( $to, $subject, $message, $headers = '' ) {
- // Compact the input, apply the filters, and extract them back out
- extract( apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers' ) ) );
-
- 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();
- } 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 );
- $headers = array();
-
- // If it's actually got contents
- if ( !empty( $tempheaders ) ) {
- // Iterate through the raw headers
- foreach ( $tempheaders as $header ) {
- if ( strpos($header, ':') === false )
- continue;
- // Explode them out
- list( $name, $content ) = explode( ':', trim( $header ), 2 );
-
- // Cleanup crew
- $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( $content );
- }
- } elseif ( 'cc' == strtolower($name) ) {
- $cc = explode(",", $content);
- } elseif ( 'bcc' == strtolower($name) ) {
- $bcc = explode(",", $content);
- } else {
- // Add it to our grand headers array
- $headers[trim( $name )] = trim( $content );
- }
- }
- }
- }
-
- // 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
- 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;
- }
-
- // Set the from name and email
- $phpmailer->From = apply_filters( 'wp_mail_from', $from_email );
- $phpmailer->FromName = apply_filters( 'wp_mail_from_name', $from_name );
-
- // Set destination address
- $phpmailer->AddAddress( $to );
-
- // Set mail's subject and body
- $phpmailer->Subject = $subject;
- $phpmailer->Body = $message;
-
- // Add any CC and BCC recipients
- if ( !empty($cc) ) {
- foreach ($cc as $recipient) {
- $phpmailer->AddCc( trim($recipient) );
- }
- }
- if ( !empty($bcc) ) {
- foreach ($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 );
-
- // Set whether it's plaintext or not, depending on $content_type
- if ( $content_type == 'text/html' ) {
- $phpmailer->IsHTML( true );
- } else {
- $phpmailer->IsHTML( false );
- }
-
- // 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 ( $headers as $name => $content ) {
- $phpmailer->AddCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) );
- }
- }
-
- do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) );
-
- // Send!
- $result = @$phpmailer->Send();
-
- return $result;
- }
- endif;
-
- /**
- * Checks a user's login information and logs them in if it checks out.
- *
- * @since 2.5
- *
- * @param string $username User's username
- * @param string $password User's password
- * @return WP_Error|WP_User WP_User object if login successful, otherwise WP_Error object.
- */
- if ( !function_exists('wp_authenticate') ) :
- function wp_authenticate($username, $password) {
- $username = sanitize_user($username);
-
- if ( '' == $username )
- return new WP_Error('empty_username', __('<strong>ERROR</strong>: The username field is empty.'));
-
- if ( '' == $password )
- return new WP_Error('empty_password', __('<strong>ERROR</strong>: 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', __('<strong>ERROR</strong>: Invalid username.'));
- }
-
- $user = apply_filters('wp_authenticate_user', $user, $password);
- if ( is_wp_error($user) ) {
- do_action( 'wp_login_failed', $username );
- return $user;
- }
-
- if ( !wp_check_password($password, $user->user_pass, $user->ID) ) {
- do_action( 'wp_login_failed', $username );
- return new WP_Error('incorrect_password', __('<strong>ERROR</strong>: Incorrect password.'));
- }
-
- return new WP_User($user->ID);
- }
- endif;
-
- /**
- * Log the current user out.
- *
- * @since 2.5
- */
- if ( !function_exists('wp_logout') ) :
- 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 = '', $scheme = 'auth') {
- if ( empty($cookie) ) {
- 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;
-
- $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() )
- return false;
-
- $key = wp_hash($username . '|' . $expiration, $scheme);
- $hash = hash_hmac('md5', $username . '|' . $expiration, $key);
-
- if ( $hmac != $hash )
- return false;
-
- $user = get_userdatabylogin($username);
- if ( ! $user )
- return false;
-
- 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);
-
- $key = wp_hash($user->user_login . '|' . $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_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 $remember Whether to remember the user or not
- */
- function wp_set_auth_cookie($user_id, $remember = false, $secure = '') {
- if ( $remember ) {
- $expiration = $expire = time() + 1209600;
- } else {
- $expiration = time() + 172800;
- $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, $user_id, 'logged_in');
-
- setcookie($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() {
- 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 ( $secure && !is_ssl() ) {
- if ( 0 === strpos($_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 ( wp_validate_auth_cookie() )
- 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://';
-
- $login_url = site_url( 'wp-login.php?redirect_to=' . urlencode($proto . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']), 'login' );
-
- wp_redirect($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());
- $result = wp_verify_nonce($_REQUEST[$query_arg], $action);
- if ( !$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 2.0.4
- *
- * @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'];
-
- $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: $location");
- }
- }
- endif;
-
- if ( !function_exists('wp_sanitize_redirect') ) :
- /**
- * Sanitizes a URL for use in a redirect.
- *
- * @since 2.3
- *
- * @return string redirect-sanitized URL
- **/
- function wp_sanitize_redirect($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');
- $found = true;
- while($found) {
- $found = false;
- foreach($strip as $val) {
- while(strpos($location, $val) !== false) {
- $found = true;
- $location = str_replace($val, '', $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 apply_filters() Calls 'allowed_redirect_hosts' on an array containing
- * WordPress host string and $location host string.
- *
- * @return void Does not return anything
- **/
- function wp_safe_redirect($location, $status = 302) {
-
- // Need to look at the URL the way it will end up in wp_redirect()
- $location = wp_sanitize_redirect($location);
-
- // 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(get_option('home'));
-
- $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), isset($lp['host']) ? $lp['host'] : '');
-
- if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) )
- $location = admin_url();
-
- wp_redirect($location, $status);
- }
- 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 ('' == $user->user_email) return false; // If there's no email to send the comment to
-
- $comment_author_domain = @gethostbyaddr($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 );
- }
- $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
- $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=cdc&c=$comment_id") ) . "\r\n";
- $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=cdc&dt=spam&c=$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 $wpdb->comments WHERE comment_approved = '0'");
-
- switch ($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";
- $notify_message .= get_permalink($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";
- $notify_message .= get_permalink($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";
- $notify_message .= get_permalink($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;
- }
-
- $notify_message .= sprintf( __('Approve it: %s'), admin_url("comment.php?action=mac&c=$comment_id") ) . "\r\n";
- $notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=cdc&c=$comment_id") ) . "\r\n";
- $notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=cdc&dt=spam&c=$comment_id") ) . "\r\n";
-
- $notify_message .= sprintf( __ngettext('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"'), 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);
-
- return true;
- }
- 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);
-
- $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";
-
- @wp_mail(get_option('admin_email'), sprintf(__('[%s] New User Registration'), get_option('blogname')), $message);
-
- if ( empty($plaintext_pass) )
- return;
-
- $message = sprintf(__('Username: %s'), $user_login) . "\r\n";
- $message .= sprintf(__('Password: %s'), $plaintext_pass) . "\r\n";
- $message .= site_url("wp-login.php", 'login') . "\r\n";
-
- wp_mail($user_email, sprintf(__('[%s] Your username and password'), get_option('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 2.0.4
- *
- * @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), -12, 10) == $nonce )
- return 1;
- // Nonce generated 12-24 hours ago
- if ( substr(wp_hash(($i - 1) . $action . $uid), -12, 10) == $nonce )
- return 2;
- // Invalid nonce
- return false;
- }
- endif;
-
- if ( !function_exists('wp_create_nonce') ) :
- /**
- * Creates a random, one time use token.
- *
- * @since 2.0.4
- *
- * @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 . $uid), -12, 10);
- }
- endif;
-
- if ( !function_exists('wp_salt') ) :
- /**
- * Get salt to add to hashes to help prevent attacks.
- *
- * The secret key is located in two places: the database in case the secret key
- * isn't defined in the second place, which is in the wp-config.php file. If you
- * are going to set the secret key, then you must do so in the wp-config.php
- * file.
- *
- * The secret key in the database is randomly generated and will be appended to
- * the secret key that is in wp-config.php file in some instances. It is
- * important to have the secret key defined or changed in wp-config.php.
- *
- * If you have installed WordPress 2.5 or later, then you will have the
- * SECRET_KEY defined in the wp-config.php already. You will want to change the
- * value in it because hackers will know what it is. If you have upgraded to
- * WordPress 2.5 or later version from a version before WordPress 2.5, then you
- * should add the constant to your wp-config.php file.
- *
- * Below is an example of how the SECRET_KEY constant is defined with a value.
- * You must not copy the below example and paste into your wp-config.php. If you
- * need an example, then you can have a
- * {@link http://api.wordpress.org/secret-key/1.0/ secret key created} for you.
- *
- * <code>
- * define('SECRET_KEY', 'mAry1HadA15|\/|b17w55w1t3asSn09w');
- * </code>
- *
- * Salting passwords helps against tools which has stored hashed values of
- * common dictionary strings. The added values makes it harder to crack if given
- * salt string is not weak.
- *
- * @since 2.5
- * @link http://api.wordpress.org/secret-key/1.0/ Create a Secret Key for wp-config.php
- *
- * @return string Salt value from either 'SECRET_KEY' or 'secret' option
- */
- function wp_salt($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') ) {
- $salt = AUTH_SALT;
- } elseif ( defined('SECRET_SALT') ) {
- $salt = SECRET_SALT;
- } else {
- $salt = get_option('auth_salt');
- if ( empty($salt) ) {
- $salt = wp_generate_password();
- 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') ) {
- $salt = SECRET_AUTH_SALT;
- } else {
- $salt = get_option('secure_auth_salt');
- if ( empty($salt) ) {
- $salt = wp_generate_password();
- 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') ) {
- $salt = LOGGED_IN_SALT;
- } else {
- $salt = get_option('logged_in_salt');
- if ( empty($salt) ) {
- $salt = wp_generate_password();
- update_option('logged_in_salt', $salt);
- }
- }
- }
-
- return apply_filters('salt', $secret_key . $salt, $scheme);
- }
- endif;
-
- if ( !function_exists('wp_hash') ) :
- /**
- * Get hash of given string.
- *
- * @since 2.0.4
- * @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, $user_id);
- }
- endif;
-
- if ( !function_exists('wp_generate_password') ) :
- /**
- * Generates a random password drawn from the defined set of characters.
- *
- * @since 2.5
- *
- * @return string The random password
- **/
- function wp_generate_password($length = 12, $special_chars = true) {
- $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
- if ( $special_chars )
- $chars .= '!@#$%^&*()';
-
- $password = '';
- for ( $i = 0; $i < $length; $i++ )
- $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
- return $password;
- }
- 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);
- $query = $wpdb->prepare("UPDATE $wpdb->users SET user_pass = %s, user_activation_key = '' WHERE ID = %d", $hash, $user_id);
- $wpdb->query($query);
- 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
- * @return string <img> tag for the user's avatar
- */
- function get_avatar( $id_or_email, $size = '96', $default = '' ) {
- if ( ! get_option('show_avatars') )
- return false;
-
- if ( !is_numeric($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) ) {
- 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 ( 'custom' == $default )
- $default = add_query_arg( 's', $size, $defaults[$avatar_default][1] );
- elseif ( 'mystery' == $default )
- $default = "http://www.gravatar.com/avatar/ad516503a11cd5ca435acc9bb6523536?s={$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 )
- $default = "http://www.gravatar.com/avatar/s={$size}";
- elseif ( empty($email) )
- $default = "http://www.gravatar.com/avatar/?d=$default&s={$size}";
-
- if ( !empty($email) ) {
- $out = 'http://www.gravatar.com/avatar/';
- $out .= md5( strtolower( $email ) );
- $out .= '?s='.$size;
- $out .= '&d=' . urlencode( $default );
-
- $rating = get_option('avatar_rating');
- if ( !empty( $rating ) )
- $out .= "&r={$rating}";
-
- $avatar = "<img alt='' src='{$out}' class='avatar avatar-{$size}' height='{$size}' width='{$size}' />";
- } else {
- $avatar = "<img alt='' src='{$default}' class='avatar avatar-{$size} avatar-default' height='{$size}' width='{$size}' />";
- }
-
- return apply_filters('get_avatar', $avatar, $id_or_email, $size, $default);
- }
- endif;
-
- if ( !function_exists('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') ) :
- /**
- * Clears the authentication cookie, logging the user out.
- *
- * @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') ):
- /**
- * Gets the user cookie login.
- *
- * 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.
- *
- * @since 2.0.4
- * @deprecated No alternative
- *
- * @return bool Always returns false
- */
- function wp_get_cookie_login() {
- _deprecated_function( __FUNCTION__, '2.5', '' );
- return false;
- }
- endif;
-
- if ( !function_exists('wp_login') ) :
- /**
- * Checks a users login information and logs them in if it checks out.
- *
- * 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.
- *
- * 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.
- *
- * @since 1.2.2
- * @deprecated Use wp_signon()
- * @global string $error Error when false is returned
- *
- * @param string $username User's username
- * @param string $password User's password
- * @param bool $deprecated Not used
- * @return bool False on login failure, true on successful check
- */
- function wp_login($username, $password, $deprecated = '') {
- global $error;
-
- $user = wp_authenticate($username, $password);
-
- if ( ! is_wp_error($user) )
- return true;
-
- $error = $user->get_error_message();
- return false;
- }
- 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' );
-
- // Normalize whitespace
- $left_string = trim($left_string);
- $right_string = trim($right_string);
- $left_string = str_replace("\r", "\n", $left_string);
- $right_string = str_replace("\r", "\n", $right_string);
- $left_string = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $left_string );
- $right_string = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $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 = "<table class='diff'>\n";
- $r .= "<col class='ltype' /><col class='content' /><col class='ltype' /><col class='content' />";
-
- if ( $args['title'] || $args['title_left'] || $args['title_right'] )
- $r .= "<thead>";
- if ( $args['title'] )
- $r .= "<tr class='diff-title'><th colspan='4'>$args[title]</th></tr>\n";
- if ( $args['title_left'] || $args['title_right'] ) {
- $r .= "<tr class='diff-sub-title'>\n";
- $r .= "\t<td></td><th>$args[title_left]</th>\n";
- $r .= "\t<td></td><th>$args[title_right]</th>\n";
- $r .= "</tr>\n";
- }
- if ( $args['title'] || $args['title_left'] || $args['title_right'] )
- $r .= "</thead>\n";
-
- $r .= "<tbody>\n$diff\n</tbody>\n";
- $r .= "</table>";
-
- return $r;
- }
- endif;
-
- ?>