+/**
+ * WordPress User Page
+ *
+ * Handles authentication, registering, resetting passwords, forgot password,
+ * and other user handling.
+ *
+ * @package WordPress
+ */
+
+/** Make sure that the WordPress bootstrap has run before continuing. */
+require( dirname(__FILE__) . '/wp-load.php' );
+
+// Redirect to https login if forced to use SSL
+if ( force_ssl_admin() && !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();
+ }
+}
+
+/**
+ * Outputs the header for the login page.
+ *
+ * @uses do_action() Calls the 'login_head' for outputting HTML in the Log In
+ * header.
+ * @uses apply_filters() Calls 'login_headerurl' for the top login link.
+ * @uses apply_filters() Calls 'login_headertitle' for the top login title.
+ * @uses apply_filters() Calls 'login_message' on the message to display in the
+ * header.
+ * @uses $error The error global, which is checked for displaying errors.
+ *
+ * @param string $title Optional. WordPress Log In Page title to display in
+ * <title/> element.
+ * @param string $message Optional. Message to display in header.
+ * @param WP_Error $wp_error Optional. WordPress Error Object
+ */
+function login_header($title = 'Log In', $message = '', $wp_error = '') {
+ global $error, $is_iphone, $interim_login, $current_site;
+
+ // Don't index any of these forms
+ add_filter( 'pre_option_blog_public', '__return_zero' );
+ add_action( 'login_head', 'noindex' );
+
+ if ( empty($wp_error) )
+ $wp_error = new WP_Error();
+
+ // Shake it!
+ $shake_error_codes = array( 'empty_password', 'empty_email', 'invalid_email', 'invalidcombo', 'empty_username', 'invalid_username', 'incorrect_password' );
+ $shake_error_codes = apply_filters( 'shake_error_codes', $shake_error_codes );
+
+ if ( $shake_error_codes && $wp_error->get_error_code() && in_array( $wp_error->get_error_code(), $shake_error_codes ) )
+ add_action( 'login_head', 'wp_shake_js', 12 );
+
+ ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
+<head>
+ <title><?php bloginfo('name'); ?> › <?php echo $title; ?></title>
+ <meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" />
+<?php
+ wp_admin_css( 'login', true );
+ wp_admin_css( 'colors-fresh', true );
+
+ if ( $is_iphone ) { ?>
+ <meta name="viewport" content="width=320; initial-scale=0.9; maximum-scale=1.0; user-scalable=0;" />
+ <style type="text/css" media="screen">
+ form { margin-left: 0px; }
+ #login { margin-top: 20px; }
+ </style>
+<?php
+ } elseif ( isset($interim_login) && $interim_login ) { ?>
+ <style type="text/css" media="all">
+ .login #login { margin: 20px auto; }
+ </style>
+<?php
+ }
+
+ do_action( 'login_enqueue_scripts' );
+ do_action( 'login_head' ); ?>
+</head>
+<body class="login">
+<?php if ( !is_multisite() ) { ?>
+<div id="login"><h1><a href="<?php echo apply_filters('login_headerurl', 'http://wordpress.org/'); ?>" title="<?php echo apply_filters('login_headertitle', esc_attr__('Powered by WordPress')); ?>"><?php bloginfo('name'); ?></a></h1>
+<?php } else { ?>
+<div id="login"><h1><a href="<?php echo apply_filters('login_headerurl', network_home_url() ); ?>" title="<?php echo apply_filters('login_headertitle', esc_attr($current_site->site_name) ); ?>"><span class="hide"><?php bloginfo('name'); ?></span></a></h1>
+<?php }
+
+ $message = apply_filters('login_message', $message);
+ if ( !empty( $message ) ) echo $message . "\n";
+
+ // Incase a plugin uses $error rather than the $errors object
+ if ( !empty( $error ) ) {
+ $wp_error->add('error', $error);
+ unset($error);
+ }
+
+ if ( $wp_error->get_error_code() ) {
+ $errors = '';
+ $messages = '';
+ foreach ( $wp_error->get_error_codes() as $code ) {
+ $severity = $wp_error->get_error_data($code);
+ foreach ( $wp_error->get_error_messages($code) as $error ) {
+ if ( 'message' == $severity )
+ $messages .= ' ' . $error . "<br />\n";
+ else
+ $errors .= ' ' . $error . "<br />\n";
+ }
+ }
+ if ( !empty($errors) )
+ echo '<div id="login_error">' . apply_filters('login_errors', $errors) . "</div>\n";
+ if ( !empty($messages) )
+ echo '<p class="message">' . apply_filters('login_messages', $messages) . "</p>\n";
+ }
+} // End of login_header()
+
+/**
+ * Outputs the footer for the login page.
+ *
+ * @param string $input_id Which input to auto-focus
+ */
+function login_footer($input_id = '') {
+ echo "</div>\n";
+
+ if ( !empty($input_id) ) {
+?>
+<script type="text/javascript">
+try{document.getElementById('<?php echo $input_id; ?>').focus();}catch(e){}
+if(typeof wpOnload=='function')wpOnload();
+</script>
+<?php
+ }
+?>
+<p id="backtoblog"><a href="<?php bloginfo('url'); ?>/" title="<?php esc_attr_e('Are you lost?') ?>"><?php printf(__('← Back to %s'), get_bloginfo('title', 'display' )); ?></a></p>
+<?php do_action('login_footer'); ?>
+</body>
+</html>
+<?php
+}
+
+function wp_shake_js() {
+ global $is_iphone;
+ if ( $is_iphone )
+ return;
+?>
+<script type="text/javascript">
+addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
+function s(id,pos){g(id).left=pos+'px';}
+function g(id){return document.getElementById(id).style;}
+function shake(id,a,d){c=a.shift();s(id,c);if(a.length>0){setTimeout(function(){shake(id,a,d);},d);}else{try{g(id).position='static';wp_attempt_focus();}catch(e){}}}
+addLoadEvent(function(){ var p=new Array(15,30,15,0,-15,-30,-15,0);p=p.concat(p.concat(p));var i=document.forms[0].id;g(i).position='relative';shake(i,p,20);});
+</script>
+<?php
+}
+
+/**
+ * Handles sending password retrieval email to user.
+ *
+ * @uses $wpdb WordPress Database object
+ *
+ * @return bool|WP_Error True: when finish. WP_Error on error
+ */
+function retrieve_password() {
+ global $wpdb, $current_site;
+
+ $errors = new WP_Error();
+
+ if ( empty( $_POST['user_login'] ) && empty( $_POST['user_email'] ) )
+ $errors->add('empty_username', __('<strong>ERROR</strong>: Enter a username or e-mail address.'));
+
+ if ( strpos($_POST['user_login'], '@') ) {
+ $user_data = get_user_by_email(trim($_POST['user_login']));
+ if ( empty($user_data) )
+ $errors->add('invalid_email', __('<strong>ERROR</strong>: There is no user registered with that email address.'));
+ } else {
+ $login = trim($_POST['user_login']);
+ $user_data = get_userdatabylogin($login);
+ }
+
+ do_action('lostpassword_post');
+
+ if ( $errors->get_error_code() )
+ return $errors;
+
+ if ( !$user_data ) {
+ $errors->add('invalidcombo', __('<strong>ERROR</strong>: Invalid username or e-mail.'));
+ return $errors;
+ }
+
+ // redefining user_login ensures we return the right case in the email
+ $user_login = $user_data->user_login;
+ $user_email = $user_data->user_email;
+
+ do_action('retreive_password', $user_login); // Misspelled and deprecated
+ do_action('retrieve_password', $user_login);
+
+ $allow = apply_filters('allow_password_reset', true, $user_data->ID);
+
+ if ( ! $allow )
+ return new WP_Error('no_password_reset', __('Password reset is not allowed for this user'));
+ else if ( is_wp_error($allow) )
+ return $allow;
+
+ $key = $wpdb->get_var($wpdb->prepare("SELECT user_activation_key FROM $wpdb->users WHERE user_login = %s", $user_login));
+ if ( empty($key) ) {
+ // Generate something random for a key...
+ $key = wp_generate_password(20, false);
+ do_action('retrieve_password_key', $user_login, $key);
+ // Now insert the new md5 key into the db
+ $wpdb->update($wpdb->users, array('user_activation_key' => $key), array('user_login' => $user_login));
+ }
+ $message = __('Someone requested that the password be reset for the following account:') . "\r\n\r\n";
+ $message .= network_site_url() . "\r\n\r\n";
+ $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n";
+ $message .= __('If this was a mistake, just ignore this email and nothing will happen.') . "\r\n\r\n";
+ $message .= __('To reset your password, visit the following address:') . "\r\n\r\n";
+ $message .= '<' . network_site_url("wp-login.php?action=rp&key=$key&login=" . rawurlencode($user_login), 'login') . ">\r\n";
+
+ if ( is_multisite() )
+ $blogname = $GLOBALS['current_site']->site_name;
+ else
+ // 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);
+
+ $title = sprintf( __('[%s] Password Reset'), $blogname );
+
+ $title = apply_filters('retrieve_password_title', $title);
+ $message = apply_filters('retrieve_password_message', $message, $key);
+
+ if ( $message && !wp_mail($user_email, $title, $message) )
+ wp_die( __('The e-mail could not be sent.') . "<br />\n" . __('Possible reason: your host may have disabled the mail() function...') );
+
+ return true;
+}
+
+/**
+ * Retrieves a user row based on password reset key and login
+ *
+ * @uses $wpdb WordPress Database object
+ *
+ * @param string $key Hash to validate sending user's password
+ * @param string $login The user login
+ *
+ * @return object|WP_Error
+ */
+function check_password_reset_key($key, $login) {
+ global $wpdb;
+
+ $key = preg_replace('/[^a-z0-9]/i', '', $key);
+
+ if ( empty( $key ) || !is_string( $key ) )
+ return new WP_Error('invalid_key', __('Invalid key'));
+
+ if ( empty($login) || !is_string($login) )
+ return new WP_Error('invalid_key', __('Invalid key'));
+
+ $user = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->users WHERE user_activation_key = %s AND user_login = %s", $key, $login));
+
+ if ( empty( $user ) )
+ return new WP_Error('invalid_key', __('Invalid key'));
+
+ return $user;
+}
+
+/**
+ * Handles resetting the user's password.
+ *
+ * @uses $wpdb WordPress Database object
+ *
+ * @param string $key Hash to validate sending user's password
+ */
+function reset_password($user, $new_pass) {
+ do_action('password_reset', $user, $new_pass);
+
+ wp_set_password($new_pass, $user->ID);
+
+ wp_password_change_notification($user);
+}
+
+/**
+ * Handles registering a new user.
+ *
+ * @param string $user_login User's username for logging in
+ * @param string $user_email User's email address to send password and add
+ * @return int|WP_Error Either user's ID or error on failure.
+ */
+function register_new_user( $user_login, $user_email ) {
+ $errors = new WP_Error();
+
+ $sanitized_user_login = sanitize_user( $user_login );
+ $user_email = apply_filters( 'user_registration_email', $user_email );
+
+ // Check the username
+ if ( $sanitized_user_login == '' ) {
+ $errors->add( 'empty_username', __( '<strong>ERROR</strong>: Please enter a username.' ) );
+ } elseif ( ! validate_username( $user_login ) ) {
+ $errors->add( 'invalid_username', __( '<strong>ERROR</strong>: This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
+ $sanitized_user_login = '';
+ } elseif ( username_exists( $sanitized_user_login ) ) {
+ $errors->add( 'username_exists', __( '<strong>ERROR</strong>: This username is already registered, please choose another one.' ) );
+ }
+
+ // Check the e-mail address
+ if ( $user_email == '' ) {
+ $errors->add( 'empty_email', __( '<strong>ERROR</strong>: Please type your e-mail address.' ) );
+ } elseif ( ! is_email( $user_email ) ) {
+ $errors->add( 'invalid_email', __( '<strong>ERROR</strong>: The email address isn’t correct.' ) );
+ $user_email = '';
+ } elseif ( email_exists( $user_email ) ) {
+ $errors->add( 'email_exists', __( '<strong>ERROR</strong>: This email is already registered, please choose another one.' ) );
+ }
+
+ do_action( 'register_post', $sanitized_user_login, $user_email, $errors );
+
+ $errors = apply_filters( 'registration_errors', $errors, $sanitized_user_login, $user_email );
+
+ if ( $errors->get_error_code() )
+ return $errors;
+
+ $user_pass = wp_generate_password( 12, false);
+ $user_id = wp_create_user( $sanitized_user_login, $user_pass, $user_email );
+ if ( ! $user_id ) {
+ $errors->add( 'registerfail', sprintf( __( '<strong>ERROR</strong>: Couldn’t register you... please contact the <a href="mailto:%s">webmaster</a> !' ), get_option( 'admin_email' ) ) );
+ return $errors;
+ }
+
+ update_user_option( $user_id, 'default_password_nag', true, true ); //Set up the Password change nag.
+
+ wp_new_user_notification( $user_id, $user_pass );
+
+ return $user_id;
+}
+
+//
+// Main
+//