X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/67f24b02807a1ff7e9d1a97453ed84c404c0af0f..8a4706fdeb1ae30268e510df6ccf3c39b3028059:/wp-includes/capabilities.php diff --git a/wp-includes/capabilities.php b/wp-includes/capabilities.php index 2b4fd79c..3503316c 100644 --- a/wp-includes/capabilities.php +++ b/wp-includes/capabilities.php @@ -73,19 +73,16 @@ class WP_Roles { var $use_db = true; /** - * PHP4 Constructor - Call {@link WP_Roles::_init()} method. + * Constructor * * @since 2.0.0 - * @access public - * - * @return WP_Roles */ - function WP_Roles() { + function __construct() { $this->_init(); } /** - * Setup the object properties. + * Set up the object properties. * * The role key is set to the current prefix for the $wpdb object with * 'user_roles' appended. If the $wp_user_roles global is set, then it will @@ -97,8 +94,7 @@ class WP_Roles { * @global array $wp_user_roles Used to set the 'roles' property value. */ function _init () { - global $wpdb; - global $wp_user_roles; + global $wpdb, $wp_user_roles; $this->role_key = $wpdb->prefix . 'user_roles'; if ( ! empty( $wp_user_roles ) ) { $this->roles = $wp_user_roles; @@ -112,7 +108,37 @@ class WP_Roles { $this->role_objects = array(); $this->role_names = array(); - foreach ( (array) $this->roles as $role => $data ) { + foreach ( array_keys( $this->roles ) as $role ) { + $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); + $this->role_names[$role] = $this->roles[$role]['name']; + } + } + + /** + * Reinitialize the object + * + * Recreates the role objects. This is typically called only by switch_to_blog() + * after switching wpdb to a new blog ID. + * + * @since 3.5.0 + * @access public + */ + function reinit() { + // There is no need to reinit if using the wp_user_roles global. + if ( ! $this->use_db ) + return; + + global $wpdb, $wp_user_roles; + + // Duplicated from _init() to avoid an extra function call. + $this->role_key = $wpdb->prefix . 'user_roles'; + $this->roles = get_option( $this->role_key ); + if ( empty( $this->roles ) ) + return; + + $this->role_objects = array(); + $this->role_names = array(); + foreach ( array_keys( $this->roles ) as $role ) { $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); $this->role_names[$role] = $this->roles[$role]['name']; } @@ -123,12 +149,15 @@ class WP_Roles { * * Updates the list of roles, if the role doesn't already exist. * + * The capabilities are defined in the following format `array( 'read' => true );` + * To explicitly deny a role a capability you set the value for that capability to false. + * * @since 2.0.0 * @access public * * @param string $role Role name. * @param string $display_name Role display name. - * @param array $capabilities List of role capabilities. + * @param array $capabilities List of role capabilities in the above format. * @return null|WP_Role WP_Role object if role is added, null if already exists. */ function add_role( $role, $display_name, $capabilities = array() ) { @@ -174,9 +203,12 @@ class WP_Roles { * * @param string $role Role name. * @param string $cap Capability name. - * @param bool $grant Optional, default is true. Whether role is capable of preforming capability. + * @param bool $grant Optional, default is true. Whether role is capable of performing capability. */ function add_cap( $role, $cap, $grant = true ) { + if ( ! isset( $this->roles[$role] ) ) + return; + $this->roles[$role]['capabilities'][$cap] = $grant; if ( $this->use_db ) update_option( $this->role_key, $this->roles ); @@ -192,6 +224,9 @@ class WP_Roles { * @param string $cap Capability name. */ function remove_cap( $role, $cap ) { + if ( ! isset( $this->roles[$role] ) ) + return; + unset( $this->roles[$role]['capabilities'][$cap] ); if ( $this->use_db ) update_option( $this->role_key, $this->roles ); @@ -206,7 +241,7 @@ class WP_Roles { * @param string $role Role name. * @return object|null Null, if role does not exist. WP_Role object, if found. */ - function &get_role( $role ) { + function get_role( $role ) { if ( isset( $this->role_objects[$role] ) ) return $this->role_objects[$role]; else @@ -234,8 +269,7 @@ class WP_Roles { * @param string $role Role name to look up. * @return bool */ - function is_role( $role ) - { + function is_role( $role ) { return isset( $this->role_names[$role] ); } } @@ -267,19 +301,18 @@ class WP_Role { var $capabilities; /** - * PHP4 Constructor - Setup object properties. + * Constructor - Set up object properties. * * The list of capabilities, must have the key as the name of the capability - * and the value a boolean of whether it is granted to the role or not. + * and the value a boolean of whether it is granted to the role. * * @since 2.0.0 * @access public * * @param string $role Role name. * @param array $capabilities List of capabilities. - * @return WP_Role */ - function WP_Role( $role, $capabilities ) { + function __construct( $role, $capabilities ) { $this->name = $role; $this->capabilities = $capabilities; } @@ -362,8 +395,6 @@ class WP_User { /** * User data container. * - * This will be set as properties of the object. - * * @since 2.0.0 * @access private * @var array @@ -379,17 +410,6 @@ class WP_User { */ var $ID = 0; - /** - * The deprecated user's ID. - * - * @since 2.0.0 - * @access public - * @deprecated Use WP_User::$ID - * @see WP_User::$ID - * @var int - */ - var $id = 0; - /** * The individual capabilities the user has been given. * @@ -427,84 +447,275 @@ class WP_User { var $allcaps = array(); /** - * First name of the user. + * The filter context applied to user data fields. * - * Created to prevent notices. - * - * @since 2.7.0 - * @access public + * @since 2.9.0 + * @access private * @var string */ - var $first_name = ''; + var $filter = null; - /** - * Last name of the user. - * - * Created to prevent notices. - * - * @since 2.7.0 - * @access public - * @var string - */ - var $last_name = ''; + private static $back_compat_keys; /** - * PHP4 Constructor - Sets up the object properties. + * Constructor * - * Retrieves the userdata and then assigns all of the data keys to direct - * properties of the object. Calls {@link WP_User::_init_caps()} after - * setting up the object's user data properties. + * Retrieves the userdata and passes it to {@link WP_User::init()}. * * @since 2.0.0 * @access public * - * @param int|string $id User's ID or username - * @param int $name Optional. User's username + * @param int|string|stdClass|WP_User $id User's ID, a WP_User object, or a user object from the DB. + * @param string $name Optional. User's username + * @param int $blog_id Optional Blog ID, defaults to current blog. * @return WP_User */ - function WP_User( $id, $name = '' ) { + function __construct( $id = 0, $name = '', $blog_id = '' ) { + if ( ! isset( self::$back_compat_keys ) ) { + $prefix = $GLOBALS['wpdb']->prefix; + self::$back_compat_keys = array( + 'user_firstname' => 'first_name', + 'user_lastname' => 'last_name', + 'user_description' => 'description', + 'user_level' => $prefix . 'user_level', + $prefix . 'usersettings' => $prefix . 'user-settings', + $prefix . 'usersettingstime' => $prefix . 'user-settings-time', + ); + } - if ( empty( $id ) && empty( $name ) ) + if ( is_a( $id, 'WP_User' ) ) { + $this->init( $id->data, $blog_id ); + return; + } elseif ( is_object( $id ) ) { + $this->init( $id, $blog_id ); return; + } - if ( ! is_numeric( $id ) ) { + if ( ! empty( $id ) && ! is_numeric( $id ) ) { $name = $id; $id = 0; } - if ( ! empty( $id ) ) - $this->data = get_userdata( $id ); + if ( $id ) + $data = self::get_data_by( 'id', $id ); else - $this->data = get_userdatabylogin( $name ); + $data = self::get_data_by( 'login', $name ); - if ( empty( $this->data->ID ) ) - return; + if ( $data ) + $this->init( $data, $blog_id ); + } + + /** + * Sets up object properties, including capabilities. + * + * @param object $data User DB row object + * @param int $blog_id Optional. The blog id to initialize for + */ + function init( $data, $blog_id = '' ) { + $this->data = $data; + $this->ID = (int) $data->ID; + + $this->for_blog( $blog_id ); + } + + /** + * Return only the main user fields + * + * @since 3.3.0 + * + * @param string $field The field to query against: 'id', 'slug', 'email' or 'login' + * @param string|int $value The field value + * @return object Raw user object + */ + static function get_data_by( $field, $value ) { + global $wpdb; + + if ( 'id' == $field ) { + // Make sure the value is numeric to avoid casting objects, for example, + // to int 1. + if ( ! is_numeric( $value ) ) + return false; + $value = absint( $value ); + } else { + $value = trim( $value ); + } + + if ( !$value ) + return false; + + switch ( $field ) { + case 'id': + $user_id = $value; + $db_field = 'ID'; + break; + case 'slug': + $user_id = wp_cache_get($value, 'userslugs'); + $db_field = 'user_nicename'; + break; + case 'email': + $user_id = wp_cache_get($value, 'useremail'); + $db_field = 'user_email'; + break; + case 'login': + $value = sanitize_user( $value ); + $user_id = wp_cache_get($value, 'userlogins'); + $db_field = 'user_login'; + break; + default: + return false; + } - foreach ( get_object_vars( $this->data ) as $key => $value ) { - $this->{$key} = $value; + if ( false !== $user_id ) { + if ( $user = wp_cache_get( $user_id, 'users' ) ) + return $user; } - $this->id = $this->ID; - $this->_init_caps(); + if ( !$user = $wpdb->get_row( $wpdb->prepare( + "SELECT * FROM $wpdb->users WHERE $db_field = %s", $value + ) ) ) + return false; + + update_user_caches( $user ); + + return $user; } /** - * Setup capability object properties. + * Magic method for checking the existence of a certain custom field + * + * @since 3.3.0 + */ + function __isset( $key ) { + if ( 'id' == $key ) { + _deprecated_argument( 'WP_User->id', '2.1', __( 'Use WP_User->ID instead.' ) ); + $key = 'ID'; + } + + if ( isset( $this->data->$key ) ) + return true; + + if ( isset( self::$back_compat_keys[ $key ] ) ) + $key = self::$back_compat_keys[ $key ]; + + return metadata_exists( 'user', $this->ID, $key ); + } + + /** + * Magic method for accessing custom fields + * + * @since 3.3.0 + */ + function __get( $key ) { + if ( 'id' == $key ) { + _deprecated_argument( 'WP_User->id', '2.1', __( 'Use WP_User->ID instead.' ) ); + return $this->ID; + } + + if ( isset( $this->data->$key ) ) { + $value = $this->data->$key; + } else { + if ( isset( self::$back_compat_keys[ $key ] ) ) + $key = self::$back_compat_keys[ $key ]; + $value = get_user_meta( $this->ID, $key, true ); + } + + if ( $this->filter ) { + $value = sanitize_user_field( $key, $value, $this->ID, $this->filter ); + } + + return $value; + } + + /** + * Magic method for setting custom fields + * + * @since 3.3.0 + */ + function __set( $key, $value ) { + if ( 'id' == $key ) { + _deprecated_argument( 'WP_User->id', '2.1', __( 'Use WP_User->ID instead.' ) ); + $this->ID = $value; + return; + } + + $this->data->$key = $value; + } + + /** + * Determine whether the user exists in the database. + * + * @since 3.4.0 + * @access public + * + * @return bool True if user exists in the database, false if not. + */ + function exists() { + return ! empty( $this->ID ); + } + + /** + * Retrieve the value of a property or meta key. + * + * Retrieves from the users and usermeta table. + * + * @since 3.3.0 + * + * @param string $key Property + */ + function get( $key ) { + return $this->__get( $key ); + } + + /** + * Determine whether a property or meta key is set + * + * Consults the users and usermeta tables. + * + * @since 3.3.0 + * + * @param string $key Property + */ + function has_prop( $key ) { + return $this->__isset( $key ); + } + + /* + * Return an array representation. + * + * @since 3.5.0 + * + * @return array Array representation. + */ + function to_array() { + return get_object_vars( $this->data ); + } + + /** + * Set up capability object properties. * * Will set the value for the 'cap_key' property to current database table * prefix, followed by 'capabilities'. Will then check to see if the * property matching the 'cap_key' exists and is an array. If so, it will be * used. * - * @since 2.1.0 * @access protected + * @since 2.1.0 + * + * @param string $cap_key Optional capability key */ - function _init_caps() { + function _init_caps( $cap_key = '' ) { global $wpdb; - $this->cap_key = $wpdb->prefix . 'capabilities'; - $this->caps = &$this->{$this->cap_key}; + + if ( empty($cap_key) ) + $this->cap_key = $wpdb->prefix . 'capabilities'; + else + $this->cap_key = $cap_key; + + $this->caps = get_user_meta( $this->ID, $this->cap_key, true ); + if ( ! is_array( $this->caps ) ) $this->caps = array(); + $this->get_role_caps(); } @@ -528,13 +739,13 @@ class WP_User { //Filter out caps that are not role names and assign to $this->roles if ( is_array( $this->caps ) ) - $this->roles = array_filter( array_keys( $this->caps ), array( &$wp_roles, 'is_role' ) ); + $this->roles = array_filter( array_keys( $this->caps ), array( $wp_roles, 'is_role' ) ); //Build $allcaps from role caps, overlay user's $caps $this->allcaps = array(); foreach ( (array) $this->roles as $role ) { - $role =& $wp_roles->get_role( $role ); - $this->allcaps = array_merge( (array) $this->allcaps, (array) $role->capabilities ); + $the_role = $wp_roles->get_role( $role ); + $this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities ); } $this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps ); } @@ -551,7 +762,7 @@ class WP_User { */ function add_role( $role ) { $this->caps[$role] = true; - update_usermeta( $this->ID, $this->cap_key, $this->caps ); + update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } @@ -565,11 +776,12 @@ class WP_User { * @param string $role Role name. */ function remove_role( $role ) { - if ( empty( $this->roles[$role] ) || ( count( $this->roles ) <= 1 ) ) + if ( !in_array($role, $this->roles) ) return; unset( $this->caps[$role] ); - update_usermeta( $this->ID, $this->cap_key, $this->caps ); + update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); + $this->update_user_level_from_caps(); } /** @@ -585,17 +797,22 @@ class WP_User { * @param string $role Role name. */ function set_role( $role ) { + if ( 1 == count( $this->roles ) && $role == current( $this->roles ) ) + return; + foreach ( (array) $this->roles as $oldrole ) unset( $this->caps[$oldrole] ); + if ( !empty( $role ) ) { $this->caps[$role] = true; $this->roles = array( $role => true ); } else { $this->roles = false; } - update_usermeta( $this->ID, $this->cap_key, $this->caps ); + update_user_meta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); + do_action( 'set_user_role', $this->ID, $role ); } /** @@ -638,8 +855,8 @@ class WP_User { */ function update_user_level_from_caps() { global $wpdb; - $this->user_level = array_reduce( array_keys( $this->allcaps ), array( &$this, 'level_reduction' ), 0 ); - update_usermeta( $this->ID, $wpdb->prefix.'user_level', $this->user_level ); + $this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 ); + update_user_meta( $this->ID, $wpdb->prefix . 'user_level', $this->user_level ); } /** @@ -653,7 +870,7 @@ class WP_User { */ function add_cap( $cap, $grant = true ) { $this->caps[$cap] = $grant; - update_usermeta( $this->ID, $this->cap_key, $this->caps ); + update_user_meta( $this->ID, $this->cap_key, $this->caps ); } /** @@ -665,9 +882,10 @@ class WP_User { * @param string $cap Capability name. */ function remove_cap( $cap ) { - if ( empty( $this->caps[$cap] ) ) return; + if ( ! isset( $this->caps[$cap] ) ) + return; unset( $this->caps[$cap] ); - update_usermeta( $this->ID, $this->cap_key, $this->caps ); + update_user_meta( $this->ID, $this->cap_key, $this->caps ); } /** @@ -679,8 +897,8 @@ class WP_User { function remove_all_caps() { global $wpdb; $this->caps = array(); - update_usermeta( $this->ID, $this->cap_key, '' ); - update_usermeta( $this->ID, $wpdb->prefix.'user_level', '' ); + delete_user_meta( $this->ID, $this->cap_key ); + delete_user_meta( $this->ID, $wpdb->prefix . 'user_level' ); $this->get_role_caps(); } @@ -689,27 +907,36 @@ class WP_User { * * This is useful for looking up whether the user has a specific role * assigned to the user. The second optional parameter can also be used to - * check for capabilities against a specfic post. + * check for capabilities against a specific object, such as a post or user. * * @since 2.0.0 * @access public * * @param string|int $cap Capability or role name to search. - * @param int $post_id Optional. Post ID to check capability against specific post. * @return bool True, if user has capability; false, if user does not have capability. */ function has_cap( $cap ) { - if ( is_numeric( $cap ) ) + if ( is_numeric( $cap ) ) { + _deprecated_argument( __FUNCTION__, '2.0', __('Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead.') ); $cap = $this->translate_level_to_cap( $cap ); + } $args = array_slice( func_get_args(), 1 ); $args = array_merge( array( $cap, $this->ID ), $args ); $caps = call_user_func_array( 'map_meta_cap', $args ); + + // Multisite super admin has all caps by definition, Unless specifically denied. + if ( is_multisite() && is_super_admin( $this->ID ) ) { + if ( in_array('do_not_allow', $caps) ) + return false; + return true; + } + // Must have ALL requested caps $capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args ); + $capabilities['exist'] = true; // Everyone is allowed to exist foreach ( (array) $caps as $cap ) { - //echo "Checking cap $cap
"; - if ( empty( $capabilities[$cap] ) || !$capabilities[$cap] ) + if ( empty( $capabilities[ $cap ] ) ) return false; } @@ -731,6 +958,21 @@ class WP_User { return 'level_' . $level; } + /** + * Set the blog to operate on. Defaults to the current blog. + * + * @since 3.0.0 + * + * @param int $blog_id Optional Blog ID, defaults to current blog. + */ + function for_blog( $blog_id = '' ) { + global $wpdb; + if ( ! empty( $blog_id ) ) + $cap_key = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities'; + else + $cap_key = ''; + $this->_init_caps( $cap_key ); + } } /** @@ -738,8 +980,8 @@ class WP_User { * * This does not actually compare whether the user ID has the actual capability, * just what the capability or capabilities are. Meta capability list value can - * be 'delete_user', 'edit_user', 'delete_post', 'delete_page', 'edit_post', - * 'edit_page', 'read_post', or 'read_page'. + * be 'delete_user', 'edit_user', 'remove_user', 'promote_user', 'delete_post', + * 'delete_page', 'edit_post', 'edit_page', 'read_post', or 'read_page'. * * @since 2.0.0 * @@ -752,161 +994,274 @@ function map_meta_cap( $cap, $user_id ) { $caps = array(); switch ( $cap ) { - case 'delete_user': - $caps[] = 'delete_users'; + case 'remove_user': + $caps[] = 'remove_users'; + break; + case 'promote_user': + $caps[] = 'promote_users'; break; case 'edit_user': - if ( !isset( $args[0] ) || $user_id != $args[0] ) { - $caps[] = 'edit_users'; - } + case 'edit_users': + // Allow user to edit itself + if ( 'edit_user' == $cap && isset( $args[0] ) && $user_id == $args[0] ) + break; + + // If multisite these caps are allowed only for super admins. + if ( is_multisite() && !is_super_admin( $user_id ) ) + $caps[] = 'do_not_allow'; + else + $caps[] = 'edit_users'; // edit_user maps to edit_users. break; case 'delete_post': - $author_data = get_userdata( $user_id ); - //echo "post ID: {$args[0]}
"; + case 'delete_page': $post = get_post( $args[0] ); - if ( 'page' == $post->post_type ) { - $args = array_merge( array( 'delete_page', $user_id ), $args ); - return call_user_func_array( 'map_meta_cap', $args ); + + if ( 'revision' == $post->post_type ) { + $post = get_post( $post->post_parent ); } - $post_author_data = get_userdata( $post->post_author ); - //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "
"; + + $post_type = get_post_type_object( $post->post_type ); + + if ( ! $post_type->map_meta_cap ) { + $caps[] = $post_type->cap->$cap; + // Prior to 3.1 we would re-call map_meta_cap here. + if ( 'delete_post' == $cap ) + $cap = $post_type->cap->$cap; + break; + } + + $post_author_id = $post->post_author; + + // If no author set yet, default to current user for cap checks. + if ( ! $post_author_id ) + $post_author_id = $user_id; + + $post_author_data = $post_author_id == get_current_user_id() ? wp_get_current_user() : get_userdata( $post_author_id ); + // If the user is the author... - if ( $user_id == $post_author_data->ID ) { + if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) { // If the post is published... - if ( 'publish' == $post->post_status ) - $caps[] = 'delete_published_posts'; - else + if ( 'publish' == $post->post_status ) { + $caps[] = $post_type->cap->delete_published_posts; + } elseif ( 'trash' == $post->post_status ) { + if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) + $caps[] = $post_type->cap->delete_published_posts; + } else { // If the post is draft... - $caps[] = 'delete_posts'; + $caps[] = $post_type->cap->delete_posts; + } } else { // The user is trying to edit someone else's post. - $caps[] = 'delete_others_posts'; + $caps[] = $post_type->cap->delete_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) - $caps[] = 'delete_published_posts'; + $caps[] = $post_type->cap->delete_published_posts; elseif ( 'private' == $post->post_status ) - $caps[] = 'delete_private_posts'; - } - break; - case 'delete_page': - $author_data = get_userdata( $user_id ); - //echo "post ID: {$args[0]}
"; - $page = get_page( $args[0] ); - $page_author_data = get_userdata( $page->post_author ); - //echo "current user id : $user_id, page author id: " . $page_author_data->ID . "
"; - // If the user is the author... - if ( $user_id == $page_author_data->ID ) { - // If the page is published... - if ( $page->post_status == 'publish' ) - $caps[] = 'delete_published_pages'; - else - // If the page is draft... - $caps[] = 'delete_pages'; - } else { - // The user is trying to edit someone else's page. - $caps[] = 'delete_others_pages'; - // The page is published, extra cap required. - if ( $page->post_status == 'publish' ) - $caps[] = 'delete_published_pages'; - elseif ( $page->post_status == 'private' ) - $caps[] = 'delete_private_pages'; + $caps[] = $post_type->cap->delete_private_posts; } break; // edit_post breaks down to edit_posts, edit_published_posts, or // edit_others_posts case 'edit_post': - $author_data = get_userdata( $user_id ); - //echo "post ID: {$args[0]}
"; + case 'edit_page': $post = get_post( $args[0] ); - if ( 'page' == $post->post_type ) { - $args = array_merge( array( 'edit_page', $user_id ), $args ); - return call_user_func_array( 'map_meta_cap', $args ); + + if ( 'revision' == $post->post_type ) { + $post = get_post( $post->post_parent ); + } + + $post_type = get_post_type_object( $post->post_type ); + + if ( ! $post_type->map_meta_cap ) { + $caps[] = $post_type->cap->$cap; + // Prior to 3.1 we would re-call map_meta_cap here. + if ( 'edit_post' == $cap ) + $cap = $post_type->cap->$cap; + break; } - $post_author_data = get_userdata( $post->post_author ); - //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "
"; + + $post_author_id = $post->post_author; + + // If no author set yet, default to current user for cap checks. + if ( ! $post_author_id ) + $post_author_id = $user_id; + + $post_author_data = $post_author_id == get_current_user_id() ? wp_get_current_user() : get_userdata( $post_author_id ); + // If the user is the author... - if ( $user_id == $post_author_data->ID ) { + if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) { // If the post is published... - if ( 'publish' == $post->post_status ) - $caps[] = 'edit_published_posts'; - else + if ( 'publish' == $post->post_status ) { + $caps[] = $post_type->cap->edit_published_posts; + } elseif ( 'trash' == $post->post_status ) { + if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) + $caps[] = $post_type->cap->edit_published_posts; + } else { // If the post is draft... - $caps[] = 'edit_posts'; + $caps[] = $post_type->cap->edit_posts; + } } else { // The user is trying to edit someone else's post. - $caps[] = 'edit_others_posts'; + $caps[] = $post_type->cap->edit_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) - $caps[] = 'edit_published_posts'; + $caps[] = $post_type->cap->edit_published_posts; elseif ( 'private' == $post->post_status ) - $caps[] = 'edit_private_posts'; - } - break; - case 'edit_page': - $author_data = get_userdata( $user_id ); - //echo "post ID: {$args[0]}
"; - $page = get_page( $args[0] ); - $page_author_data = get_userdata( $page->post_author ); - //echo "current user id : $user_id, page author id: " . $page_author_data->ID . "
"; - // If the user is the author... - if ( $user_id == $page_author_data->ID ) { - // If the page is published... - if ( 'publish' == $page->post_status ) - $caps[] = 'edit_published_pages'; - else - // If the page is draft... - $caps[] = 'edit_pages'; - } else { - // The user is trying to edit someone else's page. - $caps[] = 'edit_others_pages'; - // The page is published, extra cap required. - if ( 'publish' == $page->post_status ) - $caps[] = 'edit_published_pages'; - elseif ( 'private' == $page->post_status ) - $caps[] = 'edit_private_pages'; + $caps[] = $post_type->cap->edit_private_posts; } break; case 'read_post': + case 'read_page': $post = get_post( $args[0] ); - if ( 'page' == $post->post_type ) { - $args = array_merge( array( 'read_page', $user_id ), $args ); - return call_user_func_array( 'map_meta_cap', $args ); + + if ( 'revision' == $post->post_type ) { + $post = get_post( $post->post_parent ); } - if ( 'private' != $post->post_status ) { - $caps[] = 'read'; + $post_type = get_post_type_object( $post->post_type ); + + if ( ! $post_type->map_meta_cap ) { + $caps[] = $post_type->cap->$cap; + // Prior to 3.1 we would re-call map_meta_cap here. + if ( 'read_post' == $cap ) + $cap = $post_type->cap->$cap; break; } - $author_data = get_userdata( $user_id ); - $post_author_data = get_userdata( $post->post_author ); - if ( $user_id == $post_author_data->ID ) - $caps[] = 'read'; + $status_obj = get_post_status_object( $post->post_status ); + if ( $status_obj->public ) { + $caps[] = $post_type->cap->read; + break; + } + + $post_author_id = $post->post_author; + + // If no author set yet, default to current user for cap checks. + if ( ! $post_author_id ) + $post_author_id = $user_id; + + $post_author_data = $post_author_id == get_current_user_id() ? wp_get_current_user() : get_userdata( $post_author_id ); + + if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) + $caps[] = $post_type->cap->read; + elseif ( $status_obj->private ) + $caps[] = $post_type->cap->read_private_posts; else - $caps[] = 'read_private_posts'; + $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); break; - case 'read_page': - $page = get_page( $args[0] ); + case 'publish_post': + $post = get_post( $args[0] ); + $post_type = get_post_type_object( $post->post_type ); - if ( 'private' != $page->post_status ) { - $caps[] = 'read'; - break; + $caps[] = $post_type->cap->publish_posts; + break; + case 'edit_post_meta': + case 'delete_post_meta': + case 'add_post_meta': + $post = get_post( $args[0] ); + $post_type_object = get_post_type_object( $post->post_type ); + $caps = map_meta_cap( $post_type_object->cap->edit_post, $user_id, $post->ID ); + + $meta_key = isset( $args[ 1 ] ) ? $args[ 1 ] : false; + + if ( $meta_key && has_filter( "auth_post_meta_{$meta_key}" ) ) { + $allowed = apply_filters( "auth_post_meta_{$meta_key}", false, $meta_key, $post->ID, $user_id, $cap, $caps ); + if ( ! $allowed ) + $caps[] = $cap; + } elseif ( $meta_key && is_protected_meta( $meta_key, 'post' ) ) { + $caps[] = $cap; } + break; + case 'edit_comment': + $comment = get_comment( $args[0] ); + $post = get_post( $comment->comment_post_ID ); + $post_type_object = get_post_type_object( $post->post_type ); - $author_data = get_userdata( $user_id ); - $page_author_data = get_userdata( $page->post_author ); - if ( $user_id == $page_author_data->ID ) - $caps[] = 'read'; - else - $caps[] = 'read_private_pages'; + $caps = map_meta_cap( $post_type_object->cap->edit_post, $user_id, $post->ID ); break; case 'unfiltered_upload': - if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS == true ) + if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS && ( !is_multisite() || is_super_admin( $user_id ) ) ) + $caps[] = $cap; + else + $caps[] = 'do_not_allow'; + break; + case 'unfiltered_html' : + // Disallow unfiltered_html for all users, even admins and super admins. + if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) + $caps[] = 'do_not_allow'; + elseif ( is_multisite() && ! is_super_admin( $user_id ) ) + $caps[] = 'do_not_allow'; + else + $caps[] = $cap; + break; + case 'edit_files': + case 'edit_plugins': + case 'edit_themes': + // Disallow the file editors. + if ( defined( 'DISALLOW_FILE_EDIT' ) && DISALLOW_FILE_EDIT ) + $caps[] = 'do_not_allow'; + elseif ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) + $caps[] = 'do_not_allow'; + elseif ( is_multisite() && ! is_super_admin( $user_id ) ) + $caps[] = 'do_not_allow'; + else + $caps[] = $cap; + break; + case 'update_plugins': + case 'delete_plugins': + case 'install_plugins': + case 'update_themes': + case 'delete_themes': + case 'install_themes': + case 'update_core': + // Disallow anything that creates, deletes, or updates core, plugin, or theme files. + // Files in uploads are excepted. + if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) + $caps[] = 'do_not_allow'; + elseif ( is_multisite() && ! is_super_admin( $user_id ) ) + $caps[] = 'do_not_allow'; + else + $caps[] = $cap; + break; + case 'activate_plugins': + $caps[] = $cap; + if ( is_multisite() ) { + // update_, install_, and delete_ are handled above with is_super_admin(). + $menu_perms = get_site_option( 'menu_items', array() ); + if ( empty( $menu_perms['plugins'] ) ) + $caps[] = 'manage_network_plugins'; + } + break; + case 'delete_user': + case 'delete_users': + // If multisite only super admins can delete users. + if ( is_multisite() && ! is_super_admin( $user_id ) ) + $caps[] = 'do_not_allow'; + else + $caps[] = 'delete_users'; // delete_user maps to delete_users. + break; + case 'create_users': + if ( !is_multisite() ) + $caps[] = $cap; + elseif ( is_super_admin() || get_site_option( 'add_new_users' ) ) + $caps[] = $cap; + else + $caps[] = 'do_not_allow'; + break; + case 'manage_links' : + if ( get_option( 'link_manager_enabled' ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; default: + // Handle meta capabilities for custom post types. + $post_type_meta_caps = _post_type_meta_capabilities(); + if ( isset( $post_type_meta_caps[ $cap ] ) ) { + $args = array_merge( array( $post_type_meta_caps[ $cap ], $user_id ), $args ); + return call_user_func_array( 'map_meta_cap', $args ); + } + // If no meta caps match, return the original cap. $caps[] = $cap; } @@ -931,7 +1286,82 @@ function current_user_can( $capability ) { $args = array_slice( func_get_args(), 1 ); $args = array_merge( array( $capability ), $args ); - return call_user_func_array( array( &$current_user, 'has_cap' ), $args ); + return call_user_func_array( array( $current_user, 'has_cap' ), $args ); +} + +/** + * Whether current user has a capability or role for a given blog. + * + * @since 3.0.0 + * + * @param int $blog_id Blog ID + * @param string $capability Capability or role name. + * @return bool + */ +function current_user_can_for_blog( $blog_id, $capability ) { + if ( is_multisite() ) + switch_to_blog( $blog_id ); + + $current_user = wp_get_current_user(); + + if ( empty( $current_user ) ) + return false; + + $args = array_slice( func_get_args(), 2 ); + $args = array_merge( array( $capability ), $args ); + + $can = call_user_func_array( array( $current_user, 'has_cap' ), $args ); + + if ( is_multisite() ) + restore_current_blog(); + + return $can; +} + +/** + * Whether author of supplied post has capability or role. + * + * @since 2.9.0 + * + * @param int|object $post Post ID or post object. + * @param string $capability Capability or role name. + * @return bool + */ +function author_can( $post, $capability ) { + if ( !$post = get_post($post) ) + return false; + + $author = get_userdata( $post->post_author ); + + if ( ! $author ) + return false; + + $args = array_slice( func_get_args(), 2 ); + $args = array_merge( array( $capability ), $args ); + + return call_user_func_array( array( $author, 'has_cap' ), $args ); +} + +/** + * Whether a particular user has capability or role. + * + * @since 3.1.0 + * + * @param int|object $user User ID or object. + * @param string $capability Capability or role name. + * @return bool + */ +function user_can( $user, $capability ) { + if ( ! is_object( $user ) ) + $user = get_userdata( $user ); + + if ( ! $user || ! $user->exists() ) + return false; + + $args = array_slice( func_get_args(), 2 ); + $args = array_merge( array( $capability ), $args ); + + return call_user_func_array( array( $user, 'has_cap' ), $args ); } /** @@ -960,7 +1390,7 @@ function get_role( $role ) { * * @param string $role Role name. * @param string $display_name Display name for role. - * @param array $capabilities List of capabilities. + * @param array $capabilities List of capabilities, e.g. array( 'edit_posts' => true, 'delete_posts' => false ); * @return null|WP_Role WP_Role object if role is added, null if already exists. */ function add_role( $role, $display_name, $capabilities = array() ) { @@ -990,4 +1420,49 @@ function remove_role( $role ) { return $wp_roles->remove_role( $role ); } -?> +/** + * Retrieve a list of super admins. + * + * @since 3.0.0 + * + * @uses $super_admins Super admins global variable, if set. + * + * @return array List of super admin logins + */ +function get_super_admins() { + global $super_admins; + + if ( isset($super_admins) ) + return $super_admins; + else + return get_site_option( 'site_admins', array('admin') ); +} + +/** + * Determine if user is a site admin. + * + * @since 3.0.0 + * + * @param int $user_id (Optional) The ID of a user. Defaults to the current user. + * @return bool True if the user is a site admin. + */ +function is_super_admin( $user_id = false ) { + if ( ! $user_id || $user_id == get_current_user_id() ) + $user = wp_get_current_user(); + else + $user = get_userdata( $user_id ); + + if ( ! $user || ! $user->exists() ) + return false; + + if ( is_multisite() ) { + $super_admins = get_super_admins(); + if ( is_array( $super_admins ) && in_array( $user->user_login, $super_admins ) ) + return true; + } else { + if ( $user->has_cap('delete_users') ) + return true; + } + + return false; +}