X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/7688c6ba71852cd89123b62b2d57683535e4702a..refs/tags/wordpress-2.9:/wp-includes/user.php diff --git a/wp-includes/user.php b/wp-includes/user.php index c1efcb6e..74955889 100644 --- a/wp-includes/user.php +++ b/wp-includes/user.php @@ -1,49 +1,259 @@ get_error_codes() == array('empty_username', 'empty_password') ) { + $user = new WP_Error('', ''); + } + + return $user; + } + + wp_set_auth_cookie($user->ID, $credentials['remember'], $secure_cookie); + do_action('wp_login', $credentials['user_login']); + return $user; +} + + +/** + * Authenticate the user using the username and password. + */ +add_filter('authenticate', 'wp_authenticate_username_password', 20, 3); +function wp_authenticate_username_password($user, $username, $password) { + if ( is_a($user, 'WP_User') ) { return $user; } + + if ( empty($username) || empty($password) ) { + $error = new WP_Error(); + + if ( empty($username) ) + $error->add('empty_username', __('ERROR: The username field is empty.')); + + if ( empty($password) ) + $error->add('empty_password', __('ERROR: The password field is empty.')); + + return $error; + } + + $userdata = get_userdatabylogin($username); + if ( !$userdata ) { + return new WP_Error('invalid_username', sprintf(__('ERROR: Invalid username. Lost your password?'), site_url('wp-login.php?action=lostpassword', 'login'))); + } + + $userdata = apply_filters('wp_authenticate_user', $userdata, $password); + if ( is_wp_error($userdata) ) { + return $userdata; + } + + if ( !wp_check_password($password, $userdata->user_pass, $userdata->ID) ) { + return new WP_Error('incorrect_password', sprintf(__('ERROR: Incorrect password. Lost your password?'), site_url('wp-login.php?action=lostpassword', 'login'))); + } + + $user = new WP_User($userdata->ID); + return $user; +} + +/** + * Authenticate the user using the WordPress auth cookie. + */ +function wp_authenticate_cookie($user, $username, $password) { + if ( is_a($user, 'WP_User') ) { return $user; } + + if ( empty($username) && empty($password) ) { + $user_id = wp_validate_auth_cookie(); + if ( $user_id ) + return new WP_User($user_id); + + global $auth_secure_cookie; + + if ( $auth_secure_cookie ) + $auth_cookie = SECURE_AUTH_COOKIE; + else + $auth_cookie = AUTH_COOKIE; + + if ( !empty($_COOKIE[$auth_cookie]) ) + return new WP_Error('expired_session', __('Please log in again.')); + + // If the cookie is not set, be silent. + } + + return $user; +} + +/** + * Retrieve user data based on field. + * + * Use get_profile() will make a database query to get the value of the table + * column. The value might be cached using the query cache, but care should be + * taken when using the function to not make a lot of queries for retrieving + * user profile information. + * + * If the $user parameter is not used, then the user will be retrieved from a + * cookie of the user. Therefore, if the cookie does not exist, then no value + * might be returned. Sanity checking must be done to ensure that when using + * get_profile() that empty/null/false values are handled and that something is + * at least displayed. + * + * @since 1.5.0 + * @uses $wpdb WordPress database object to create queries. + * + * @param string $field User field to retrieve. + * @param string $user Optional. User username. + * @return string The value in the field. + */ function get_profile($field, $user = false) { global $wpdb; if ( !$user ) - $user = $wpdb->escape($_COOKIE[USER_COOKIE]); - return $wpdb->get_var("SELECT $field FROM $wpdb->users WHERE user_login = '$user'"); + $user = esc_sql( $_COOKIE[USER_COOKIE] ); + return $wpdb->get_var( $wpdb->prepare("SELECT $field FROM $wpdb->users WHERE user_login = %s", $user) ); } +/** + * Number of posts user has written. + * + * @since 0.71 + * @uses $wpdb WordPress database object for queries. + * + * @param int $userid User ID. + * @return int Amount of posts user has written. + */ function get_usernumposts($userid) { global $wpdb; $userid = (int) $userid; - return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid' AND post_type = 'post' AND " . get_private_posts_cap_sql('post')); + $count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = %d AND post_type = 'post' AND ", $userid) . get_private_posts_cap_sql('post')); + return apply_filters('get_usernumposts', $count, $userid); } -// TODO: xmlrpc only. Maybe move to xmlrpc.php. -function user_pass_ok($user_login,$user_pass) { - global $cache_userdata; - if ( empty($cache_userdata[$user_login]) ) { - $userdata = get_userdatabylogin($user_login); - } else { - $userdata = $cache_userdata[$user_login]; - } - return (md5($user_pass) == $userdata->user_pass); +/** + * Check that the user login name and password is correct. + * + * @since 0.71 + * @todo xmlrpc only. Maybe move to xmlrpc.php. + * + * @param string $user_login User name. + * @param string $user_pass User password. + * @return bool False if does not authenticate, true if username and password authenticates. + */ +function user_pass_ok($user_login, $user_pass) { + $user = wp_authenticate($user_login, $user_pass); + if ( is_wp_error($user) ) + return false; + + return true; } // // User option functions // -function get_user_option( $option, $user = 0 ) { +/** + * Retrieve user option that can be either global, user, or blog. + * + * If the user ID is not given, then the current user will be used instead. If + * the user ID is given, then the user data will be retrieved. The filter for + * the result, will also pass the original option name and finally the user data + * object as the third parameter. + * + * The option will first check for the non-global name, then the global name, + * and if it still doesn't find it, it will try the blog option. The option can + * either be modified or set by a plugin. + * + * @since 2.0.0 + * @uses $wpdb WordPress database object for queries. + * @uses apply_filters() Calls 'get_user_option_$option' hook with result, + * option parameter, and user data object. + * + * @param string $option User option name. + * @param int $user Optional. User ID. + * @param bool $check_blog_options Whether to check for an option in the options table if a per-user option does not exist. Default is true. + * @return mixed + */ +function get_user_option( $option, $user = 0, $check_blog_options = true ) { global $wpdb; + $option = preg_replace('|[^a-z0-9_]|i', '', $option); if ( empty($user) ) $user = wp_get_current_user(); else $user = get_userdata($user); if ( isset( $user->{$wpdb->prefix . $option} ) ) // Blog specific - return $user->{$wpdb->prefix . $option}; + $result = $user->{$wpdb->prefix . $option}; elseif ( isset( $user->{$option} ) ) // User specific and cross-blog - return $user->{$option}; - else // Blog global - return get_option( $option ); + $result = $user->{$option}; + elseif ( $check_blog_options ) // Blog global + $result = get_option( $option ); + else + $result = false; + + return apply_filters("get_user_option_{$option}", $result, $option, $user); } +/** + * Update user option with global blog capability. + * + * User options are just like user metadata except that they have support for + * global blog options. If the 'global' parameter is false, which it is by default + * it will prepend the WordPress table prefix to the option name. + * + * @since 2.0.0 + * @uses $wpdb WordPress database object for queries + * + * @param int $user_id User ID + * @param string $option_name User option name. + * @param mixed $newvalue User option value. + * @param bool $global Optional. Whether option name is blog specific or not. + * @return unknown + */ function update_user_option( $user_id, $option_name, $newvalue, $global = false ) { global $wpdb; if ( !$global ) @@ -51,13 +261,24 @@ function update_user_option( $user_id, $option_name, $newvalue, $global = false return update_usermeta( $user_id, $option_name, $newvalue ); } -// Get users with capabilities for the current blog. -// For setups that use the multi-blog feature. +/** + * Get users for the blog. + * + * For setups that use the multi-blog feature. Can be used outside of the + * multi-blog feature. + * + * @since 2.2.0 + * @uses $wpdb WordPress database object for queries + * @uses $blog_id The Blog id of the blog for those that use more than one blog + * + * @param int $id Blog ID. + * @return array List of users that are part of that Blog ID + */ function get_users_of_blog( $id = '' ) { global $wpdb, $blog_id; if ( empty($id) ) $id = (int) $blog_id; - $users = $wpdb->get_results( "SELECT user_id, user_login, display_name, user_email, meta_value FROM $wpdb->users, $wpdb->usermeta WHERE " . $wpdb->users . ".ID = " . $wpdb->usermeta . ".user_id AND meta_key = '" . $wpdb->prefix . "capabilities' ORDER BY {$wpdb->usermeta}.user_id" ); + $users = $wpdb->get_results( "SELECT user_id, user_id AS ID, user_login, display_name, user_email, meta_value FROM $wpdb->users, $wpdb->usermeta WHERE {$wpdb->users}.ID = {$wpdb->usermeta}.user_id AND meta_key = '{$wpdb->prefix}capabilities' ORDER BY {$wpdb->usermeta}.user_id" ); return $users; } @@ -65,6 +286,17 @@ function get_users_of_blog( $id = '' ) { // User meta functions // +/** + * Remove user meta data. + * + * @since 2.0.0 + * @uses $wpdb WordPress database object for queries. + * + * @param int $user_id User ID. + * @param string $meta_key Metadata key. + * @param mixed $meta_value Metadata value. + * @return bool True deletion completed and false if user_id is not a number. + */ function delete_usermeta( $user_id, $meta_key, $meta_value = '' ) { global $wpdb; if ( !is_numeric( $user_id ) ) @@ -75,18 +307,39 @@ function delete_usermeta( $user_id, $meta_key, $meta_value = '' ) { $meta_value = serialize($meta_value); $meta_value = trim( $meta_value ); + $cur = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) ); + + if ( $cur && $cur->umeta_id ) + do_action( 'delete_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value ); + if ( ! empty($meta_value) ) - $wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key' AND meta_value = '$meta_value'"); + $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s AND meta_value = %s", $user_id, $meta_key, $meta_value) ); else - $wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'"); + $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) ); - $user = get_userdata($user_id); wp_cache_delete($user_id, 'users'); - wp_cache_delete($user->user_login, 'userlogins'); + + if ( $cur && $cur->umeta_id ) + do_action( 'deleted_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value ); return true; } +/** + * Retrieve user metadata. + * + * If $user_id is not a number, then the function will fail over with a 'false' + * boolean return value. Other returned values depend on whether there is only + * one item to be returned, which be that single item type. If there is more + * than one metadata value, then it will be list of metadata values. + * + * @since 2.0.0 + * @uses $wpdb WordPress database object for queries. + * + * @param int $user_id User ID + * @param string $meta_key Optional. Metadata key. + * @return mixed + */ function get_usermeta( $user_id, $meta_key = '') { global $wpdb; $user_id = (int) $user_id; @@ -96,9 +349,14 @@ function get_usermeta( $user_id, $meta_key = '') { if ( !empty($meta_key) ) { $meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key); - $metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'"); + $user = wp_cache_get($user_id, 'users'); + // Check the cached user object + if ( false !== $user && isset($user->$meta_key) ) + $metas = array($user->$meta_key); + else + $metas = $wpdb->get_col( $wpdb->prepare("SELECT meta_value FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) ); } else { - $metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id'"); + $metas = $wpdb->get_col( $wpdb->prepare("SELECT meta_value FROM $wpdb->usermeta WHERE user_id = %d", $user_id) ); } if ( empty($metas) ) { @@ -108,45 +366,64 @@ function get_usermeta( $user_id, $meta_key = '') { return ''; } - foreach ($metas as $meta) - $values[] = maybe_unserialize($meta->meta_value); + $metas = array_map('maybe_unserialize', $metas); - if ( count($values) == 1 ) - return $values[0]; + if ( count($metas) == 1 ) + return $metas[0]; else - return $values; + return $metas; } +/** + * Update metadata of user. + * + * There is no need to serialize values, they will be serialized if it is + * needed. The metadata key can only be a string with underscores. All else will + * be removed. + * + * Will remove the metadata, if the meta value is empty. + * + * @since 2.0.0 + * @uses $wpdb WordPress database object for queries + * + * @param int $user_id User ID + * @param string $meta_key Metadata key. + * @param mixed $meta_value Metadata value. + * @return bool True on successful update, false on failure. + */ function update_usermeta( $user_id, $meta_key, $meta_value ) { global $wpdb; if ( !is_numeric( $user_id ) ) return false; $meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key); - // FIXME: usermeta data is assumed to be already escaped + /** @todo Might need fix because usermeta data is assumed to be already escaped */ if ( is_string($meta_value) ) $meta_value = stripslashes($meta_value); $meta_value = maybe_serialize($meta_value); - $meta_value = $wpdb->escape($meta_value); if (empty($meta_value)) { return delete_usermeta($user_id, $meta_key); } - $cur = $wpdb->get_row("SELECT * FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'"); - if ( !$cur ) { - $wpdb->query("INSERT INTO $wpdb->usermeta ( user_id, meta_key, meta_value ) - VALUES - ( '$user_id', '$meta_key', '$meta_value' )"); - } else if ( $cur->meta_value != $meta_value ) { - $wpdb->query("UPDATE $wpdb->usermeta SET meta_value = '$meta_value' WHERE user_id = '$user_id' AND meta_key = '$meta_key'"); - } else { + $cur = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->usermeta WHERE user_id = %d AND meta_key = %s", $user_id, $meta_key) ); + + if ( $cur ) + do_action( 'update_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value ); + + if ( !$cur ) + $wpdb->insert($wpdb->usermeta, compact('user_id', 'meta_key', 'meta_value') ); + else if ( $cur->meta_value != $meta_value ) + $wpdb->update($wpdb->usermeta, compact('meta_value'), compact('user_id', 'meta_key') ); + else return false; - } - $user = get_userdata($user_id); wp_cache_delete($user_id, 'users'); - wp_cache_delete($user->user_login, 'userlogins'); + + if ( !$cur ) + do_action( 'added_usermeta', $wpdb->insert_id, $user_id, $meta_key, $meta_value ); + else + do_action( 'updated_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value ); return true; } @@ -155,34 +432,83 @@ function update_usermeta( $user_id, $meta_key, $meta_value ) { // Private helper functions // -// Setup global user vars. Used by set_current_user() for back compat. -function setup_userdata($user_id = '') { +/** + * Setup global user vars. + * + * Used by set_current_user() for back compat. Might be deprecated in the + * future. + * + * @since 2.0.4 + * @global string $userdata User description. + * @global string $user_login The user username for logging in + * @global int $user_level The level of the user + * @global int $user_ID The ID of the user + * @global string $user_email The email address of the user + * @global string $user_url The url in the user's profile + * @global string $user_pass_md5 MD5 of the user's password + * @global string $user_identity The display name of the user + * + * @param int $for_user_id Optional. User ID to setup global data. + */ +function setup_userdata($for_user_id = '') { global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_pass_md5, $user_identity; - if ( '' == $user_id ) + if ( '' == $for_user_id ) $user = wp_get_current_user(); else - $user = new WP_User($user_id); + $user = new WP_User($for_user_id); if ( 0 == $user->ID ) return; $userdata = $user->data; $user_login = $user->user_login; - $user_level = (int) $user->user_level; - $user_ID = (int) $user->ID; + $user_level = (int) isset($user->user_level) ? $user->user_level : 0; + $user_ID = (int) $user->ID; $user_email = $user->user_email; $user_url = $user->user_url; $user_pass_md5 = md5($user->user_pass); $user_identity = $user->display_name; } +/** + * Create dropdown HTML content of users. + * + * The content can either be displayed, which it is by default or retrieved by + * setting the 'echo' argument. The 'include' and 'exclude' arguments do not + * need to be used; all users will be displayed in that case. Only one can be + * used, either 'include' or 'exclude', but not both. + * + * The available arguments are as follows: + *
    + *
  1. show_option_all - Text to show all and whether HTML option exists.
    2. + *
  2. show_option_none - Text for show none and whether HTML option exists. + *
    3. + *
  3. orderby - SQL order by clause for what order the users appear. Default is + * 'display_name'.
    4. + *
  4. order - Default is 'ASC'. Can also be 'DESC'.
    5. + *
  5. include - User IDs to include.
    6. + *
  6. exclude - User IDs to exclude.
    7. + *
  7. multi - Default is 'false'. Whether to skip the ID attribute on the 'select' element.
    8. + *
  8. show - Default is 'display_name'. User table column to display. If the selected item is empty then the user_login will be displayed in parentesis
    9. + *
  9. echo - Default is '1'. Whether to display or retrieve content.
    10. + *
  10. selected - Which User ID is selected.
    11. + *
  11. name - Default is 'user'. Name attribute of select element.
    12. + *
  12. class - Class attribute of select element.
    13. + *
+ * + * @since 2.3.0 + * @uses $wpdb WordPress database object for queries + * + * @param string|array $args Optional. Override defaults. + * @return string|null Null on display. String of HTML content on retrieve. + */ function wp_dropdown_users( $args = '' ) { global $wpdb; $defaults = array( 'show_option_all' => '', 'show_option_none' => '', 'orderby' => 'display_name', 'order' => 'ASC', - 'include' => '', 'exclude' => '', + 'include' => '', 'exclude' => '', 'multi' => 0, 'show' => 'display_name', 'echo' => 1, 'selected' => 0, 'name' => 'user', 'class' => '' ); @@ -217,7 +543,9 @@ function wp_dropdown_users( $args = '' ) { $output = ''; if ( !empty($users) ) { - $output = "\n"; if ( $show_option_all ) $output .= "\t\n"; @@ -225,10 +553,11 @@ function wp_dropdown_users( $args = '' ) { if ( $show_option_none ) $output .= "\t\n"; - foreach ( $users as $user ) { + foreach ( (array) $users as $user ) { $user->ID = (int) $user->ID; $_selected = $user->ID == $selected ? " selected='selected'" : ''; - $output .= "\t\n"; + $display = !empty($user->$show) ? $user->$show : '('. $user->user_login . ')'; + $output .= "\t\n"; } $output .= ""; @@ -242,4 +571,167 @@ function wp_dropdown_users( $args = '' ) { return $output; } +/** + * Add user meta data as properties to given user object. + * + * The finished user data is cached, but the cache is not used to fill in the + * user data for the given object. Once the function has been used, the cache + * should be used to retrieve user data. The purpose seems then to be to ensure + * that the data in the object is always fresh. + * + * @access private + * @since 2.5.0 + * @uses $wpdb WordPress database object for queries + * + * @param object $user The user data object. + */ +function _fill_user( &$user ) { + global $wpdb; + + $show = $wpdb->hide_errors(); + $metavalues = $wpdb->get_results($wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = %d", $user->ID)); + $wpdb->show_errors($show); + + if ( $metavalues ) { + foreach ( (array) $metavalues as $meta ) { + $value = maybe_unserialize($meta->meta_value); + $user->{$meta->meta_key} = $value; + } + } + + $level = $wpdb->prefix . 'user_level'; + if ( isset( $user->{$level} ) ) + $user->user_level = $user->{$level}; + + // For backwards compat. + if ( isset($user->first_name) ) + $user->user_firstname = $user->first_name; + if ( isset($user->last_name) ) + $user->user_lastname = $user->last_name; + if ( isset($user->description) ) + $user->user_description = $user->description; + + wp_cache_add($user->ID, $user, 'users'); + wp_cache_add($user->user_login, $user->ID, 'userlogins'); + wp_cache_add($user->user_email, $user->ID, 'useremail'); + wp_cache_add($user->user_nicename, $user->ID, 'userslugs'); +} + +/** + * Sanitize every user field. + * + * If the context is 'raw', then the user object or array will get minimal santization of the int fields. + * + * @since 2.3.0 + * @uses sanitize_user_field() Used to sanitize the fields. + * + * @param object|array $user The User Object or Array + * @param string $context Optional, default is 'display'. How to sanitize user fields. + * @return object|array The now sanitized User Object or Array (will be the same type as $user) + */ +function sanitize_user_object($user, $context = 'display') { + if ( is_object($user) ) { + if ( !isset($user->ID) ) + $user->ID = 0; + if ( isset($user->data) ) + $vars = get_object_vars( $user->data ); + else + $vars = get_object_vars($user); + foreach ( array_keys($vars) as $field ) { + if ( is_array($user->$field) ) + continue; + $user->$field = sanitize_user_field($field, $user->$field, $user->ID, $context); + } + $user->filter = $context; + } else { + if ( !isset($user['ID']) ) + $user['ID'] = 0; + foreach ( array_keys($user) as $field ) + $user[$field] = sanitize_user_field($field, $user[$field], $user['ID'], $context); + $user['filter'] = $context; + } + + return $user; +} + +/** + * Sanitize user field based on context. + * + * Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The + * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display' + * when calling filters. + * + * @since 2.3.0 + * @uses apply_filters() Calls 'edit_$field' and '${field_no_prefix}_edit_pre' passing $value and + * $user_id if $context == 'edit' and field name prefix == 'user_'. + * + * @uses apply_filters() Calls 'edit_user_$field' passing $value and $user_id if $context == 'db'. + * @uses apply_filters() Calls 'pre_$field' passing $value if $context == 'db' and field name prefix == 'user_'. + * @uses apply_filters() Calls '${field}_pre' passing $value if $context == 'db' and field name prefix != 'user_'. + * + * @uses apply_filters() Calls '$field' passing $value, $user_id and $context if $context == anything + * other than 'raw', 'edit' and 'db' and field name prefix == 'user_'. + * @uses apply_filters() Calls 'user_$field' passing $value if $context == anything other than 'raw', + * 'edit' and 'db' and field name prefix != 'user_'. + * + * @param string $field The user Object field name. + * @param mixed $value The user Object value. + * @param int $user_id user ID. + * @param string $context How to sanitize user fields. Looks for 'raw', 'edit', 'db', 'display', + * 'attribute' and 'js'. + * @return mixed Sanitized value. + */ +function sanitize_user_field($field, $value, $user_id, $context) { + $int_fields = array('ID'); + if ( in_array($field, $int_fields) ) + $value = (int) $value; + + if ( 'raw' == $context ) + return $value; + + if ( is_array($value) ) + return $value; + + $prefixed = false; + if ( false !== strpos($field, 'user_') ) { + $prefixed = true; + $field_no_prefix = str_replace('user_', '', $field); + } + + if ( 'edit' == $context ) { + if ( $prefixed ) { + $value = apply_filters("edit_$field", $value, $user_id); + } else { + $value = apply_filters("edit_user_$field", $value, $user_id); + } + + if ( 'description' == $field ) + $value = esc_html($value); + else + $value = esc_attr($value); + } else if ( 'db' == $context ) { + if ( $prefixed ) { + $value = apply_filters("pre_$field", $value); + } else { + $value = apply_filters("pre_user_$field", $value); + } + } else { + // Use display filters by default. + if ( $prefixed ) + $value = apply_filters($field, $value, $user_id, $context); + else + $value = apply_filters("user_$field", $value, $user_id, $context); + } + + if ( 'user_url' == $field ) + $value = esc_url($value); + + if ( 'attribute' == $context ) + $value = esc_attr($value); + else if ( 'js' == $context ) + $value = esc_js($value); + + return $value; +} + ?>