X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/ff81ee6e8304a1982a3ec4f5b134764a29d502cf..refs/tags/wordpress-2.9:/wp-includes/capabilities.php diff --git a/wp-includes/capabilities.php b/wp-includes/capabilities.php index b5cea726..4a5ccec0 100644 --- a/wp-includes/capabilities.php +++ b/wp-includes/capabilities.php @@ -1,110 +1,352 @@ + * array ( + * 'rolename' => array ( + * 'name' => 'rolename', + * 'capabilities' => array() + * ) + * ) + * + * + * @since 2.0.0 + * @package WordPress + * @subpackage User + */ class WP_Roles { + /** + * List of roles and capabilities. + * + * @since 2.0.0 + * @access public + * @var array + */ var $roles; + /** + * List of the role objects. + * + * @since 2.0.0 + * @access public + * @var array + */ var $role_objects = array(); + + /** + * List of role names. + * + * @since 2.0.0 + * @access public + * @var array + */ var $role_names = array(); + + /** + * Option name for storing role list. + * + * @since 2.0.0 + * @access public + * @var string + */ var $role_key; + /** + * Whether to use the database for retrieval and storage. + * + * @since 2.1.0 + * @access public + * @var bool + */ + var $use_db = true; + + /** + * PHP4 Constructor - Call {@link WP_Roles::_init()} method. + * + * @since 2.0.0 + * @access public + * + * @return WP_Roles + */ function WP_Roles() { - global $table_prefix; - $this->role_key = $table_prefix . 'user_roles'; + $this->_init(); + } - $this->roles = get_option($this->role_key); + /** + * Setup 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 + * be used and the role option will not be updated or used. + * + * @since 2.1.0 + * @access protected + * @uses $wpdb Used to get the database prefix. + * @global array $wp_user_roles Used to set the 'roles' property value. + */ + function _init () { + global $wpdb; + global $wp_user_roles; + $this->role_key = $wpdb->prefix . 'user_roles'; + if ( ! empty( $wp_user_roles ) ) { + $this->roles = $wp_user_roles; + $this->use_db = false; + } else { + $this->roles = get_option( $this->role_key ); + } - if ( empty($this->roles) ) + if ( empty( $this->roles ) ) return; - foreach ($this->roles as $role => $data) { - $this->role_objects[$role] = new WP_Role($role, $this->roles[$role]['capabilities']); + $this->role_objects = array(); + $this->role_names = array(); + foreach ( (array) $this->roles as $role => $data ) { + $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); $this->role_names[$role] = $this->roles[$role]['name']; } } - function add_role($role, $display_name, $capabilities = '') { - if ( isset($this->roles[$role]) ) + /** + * Add role name with capabilities to list. + * + * 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 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() ) { + if ( isset( $this->roles[$role] ) ) return; $this->roles[$role] = array( 'name' => $display_name, - 'capabilities' => $capabilities); - update_option($this->role_key, $this->roles); - $this->role_objects[$role] = new WP_Role($role, $capabilities); + 'capabilities' => $capabilities + ); + if ( $this->use_db ) + update_option( $this->role_key, $this->roles ); + $this->role_objects[$role] = new WP_Role( $role, $capabilities ); $this->role_names[$role] = $display_name; return $this->role_objects[$role]; } - - function remove_role($role) { - if ( ! isset($this->role_objects[$role]) ) + + /** + * Remove role by name. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + */ + function remove_role( $role ) { + if ( ! isset( $this->role_objects[$role] ) ) return; - - unset($this->role_objects[$role]); - unset($this->role_names[$role]); - unset($this->roles[$role]); - - update_option($this->role_key, $this->roles); + + unset( $this->role_objects[$role] ); + unset( $this->role_names[$role] ); + unset( $this->roles[$role] ); + + if ( $this->use_db ) + update_option( $this->role_key, $this->roles ); } - function add_cap($role, $cap, $grant = true) { + /** + * Add capability to role. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + * @param string $cap Capability name. + * @param bool $grant Optional, default is true. Whether role is capable of performing capability. + */ + function add_cap( $role, $cap, $grant = true ) { $this->roles[$role]['capabilities'][$cap] = $grant; - update_option($this->role_key, $this->roles); + if ( $this->use_db ) + update_option( $this->role_key, $this->roles ); } - function remove_cap($role, $cap) { - unset($this->roles[$role]['capabilities'][$cap]); - update_option($this->role_key, $this->roles); + /** + * Remove capability from role. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + * @param string $cap Capability name. + */ + function remove_cap( $role, $cap ) { + unset( $this->roles[$role]['capabilities'][$cap] ); + if ( $this->use_db ) + update_option( $this->role_key, $this->roles ); } - function &get_role($role) { - if ( isset($this->role_objects[$role]) ) + /** + * Retrieve role object by name. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + * @return object|null Null, if role does not exist. WP_Role object, if found. + */ + function &get_role( $role ) { + if ( isset( $this->role_objects[$role] ) ) return $this->role_objects[$role]; else return null; } + /** + * Retrieve list of role names. + * + * @since 2.0.0 + * @access public + * + * @return array List of role names. + */ function get_names() { return $this->role_names; } - function is_role($role) + /** + * Whether role name is currently in the list of available roles. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name to look up. + * @return bool + */ + function is_role( $role ) { - return isset($this->role_names[$role]); - } + return isset( $this->role_names[$role] ); + } } +/** + * WordPress Role class. + * + * @since 2.0.0 + * @package WordPress + * @subpackage User + */ class WP_Role { + /** + * Role name. + * + * @since 2.0.0 + * @access public + * @var string + */ var $name; + + /** + * List of capabilities the role contains. + * + * @since 2.0.0 + * @access public + * @var array + */ var $capabilities; - function WP_Role($role, $capabilities) { + /** + * PHP4 Constructor - Setup 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. + * + * @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 ) { $this->name = $role; $this->capabilities = $capabilities; } - function add_cap($cap, $grant = true) { + /** + * Assign role a capability. + * + * @see WP_Roles::add_cap() Method uses implementation for role. + * @since 2.0.0 + * @access public + * + * @param string $cap Capability name. + * @param bool $grant Whether role has capability privilege. + */ + function add_cap( $cap, $grant = true ) { global $wp_roles; - if ( ! isset($wp_roles) ) + if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); $this->capabilities[$cap] = $grant; - $wp_roles->add_cap($this->name, $cap, $grant); + $wp_roles->add_cap( $this->name, $cap, $grant ); } - function remove_cap($cap) { + /** + * Remove capability from role. + * + * This is a container for {@link WP_Roles::remove_cap()} to remove the + * capability from the role. That is to say, that {@link + * WP_Roles::remove_cap()} implements the functionality, but it also makes + * sense to use this class, because you don't need to enter the role name. + * + * @since 2.0.0 + * @access public + * + * @param string $cap Capability name. + */ + function remove_cap( $cap ) { global $wp_roles; - if ( ! isset($wp_roles) ) + if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); - unset($this->capabilities[$cap]); - $wp_roles->remove_cap($this->name, $cap); + unset( $this->capabilities[$cap] ); + $wp_roles->remove_cap( $this->name, $cap ); } - function has_cap($cap) { - $capabilities = apply_filters('role_has_cap', $this->capabilities, $cap, $this->name); - if ( !empty($capabilities[$cap]) ) + /** + * Whether role has capability. + * + * The capabilities is passed through the 'role_has_cap' filter. The first + * parameter for the hook is the list of capabilities the class has + * assigned. The second parameter is the capability name to look for. The + * third and final parameter for the hook is the role name. + * + * @since 2.0.0 + * @access public + * + * @param string $cap Capability name. + * @return bool True, if user has capability. False, if doesn't have capability. + */ + function has_cap( $cap ) { + $capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name ); + if ( !empty( $capabilities[$cap] ) ) return $capabilities[$cap]; else return false; @@ -112,310 +354,707 @@ class WP_Role { } +/** + * WordPress User class. + * + * @since 2.0.0 + * @package WordPress + * @subpackage User + */ class WP_User { + /** + * User data container. + * + * This will be set as properties of the object. + * + * @since 2.0.0 + * @access private + * @var array + */ var $data; + + /** + * The user's ID. + * + * @since 2.1.0 + * @access public + * @var int + */ + 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. + * + * @since 2.0.0 + * @access public + * @var array + */ var $caps = array(); + + /** + * User metadata option name. + * + * @since 2.0.0 + * @access public + * @var string + */ var $cap_key; + + /** + * The roles the user is part of. + * + * @since 2.0.0 + * @access public + * @var array + */ var $roles = array(); - var $allcaps = array(); - function WP_User($id, $name = '') { - global $table_prefix; + /** + * All capabilities the user has, including individual and role based. + * + * @since 2.0.0 + * @access public + * @var array + */ + var $allcaps = array(); - if ( empty($id) && empty($name) ) + /** + * First name of the user. + * + * Created to prevent notices. + * + * @since 2.7.0 + * @access public + * @var string + */ + var $first_name = ''; + + /** + * Last name of the user. + * + * Created to prevent notices. + * + * @since 2.7.0 + * @access public + * @var string + */ + var $last_name = ''; + + /** + * The filter context applied to user data fields. + * + * @since 2.9.0 + * @access private + * @var string + */ + var $filter = null; + + /** + * PHP4 Constructor - Sets up the object properties. + * + * 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. + * + * @since 2.0.0 + * @access public + * + * @param int|string $id User's ID or username + * @param int $name Optional. User's username + * @return WP_User + */ + function WP_User( $id, $name = '' ) { + + if ( empty( $id ) && empty( $name ) ) return; - if ( ! is_numeric($id) ) { + if ( ! is_numeric( $id ) ) { $name = $id; $id = 0; } - if ( ! empty($id) ) - $this->data = get_userdata($id); + if ( ! empty( $id ) ) + $this->data = get_userdata( $id ); else - $this->data = get_userdatabylogin($name); + $this->data = get_userdatabylogin( $name ); - if ( empty($this->data->ID) ) + if ( empty( $this->data->ID ) ) return; - foreach (get_object_vars($this->data) as $key => $value) { + foreach ( get_object_vars( $this->data ) as $key => $value ) { $this->{$key} = $value; } $this->id = $this->ID; - $this->cap_key = $table_prefix . 'capabilities'; + $this->_init_caps(); + } + + /** + * Setup 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 + */ + function _init_caps() { + global $wpdb; + $this->cap_key = $wpdb->prefix . 'capabilities'; $this->caps = &$this->{$this->cap_key}; - if ( ! is_array($this->caps) ) + if ( ! is_array( $this->caps ) ) $this->caps = array(); $this->get_role_caps(); } - + + /** + * Retrieve all of the role capabilities and merge with individual capabilities. + * + * All of the capabilities of the roles the user belongs to are merged with + * the users individual roles. This also means that the user can be denied + * specific roles that their role might have, but the specific user isn't + * granted permission to. + * + * @since 2.0.0 + * @uses $wp_roles + * @access public + */ function get_role_caps() { global $wp_roles; - - if ( ! isset($wp_roles) ) + + if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); //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')); + if ( is_array( $this->caps ) ) + $this->roles = array_filter( array_keys( $this->caps ), array( &$wp_roles, 'is_role' ) ); //Build $allcaps from role caps, overlay user's $caps $this->allcaps = array(); - foreach($this->roles as $role) { - $role = $wp_roles->get_role($role); - $this->allcaps = array_merge($this->allcaps, $role->capabilities); + foreach ( (array) $this->roles as $role ) { + $role =& $wp_roles->get_role( $role ); + $this->allcaps = array_merge( (array) $this->allcaps, (array) $role->capabilities ); } - $this->allcaps = array_merge($this->allcaps, $this->caps); + $this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps ); } - - function add_role($role) { + + /** + * Add role to user. + * + * Updates the user's meta data option with capabilities and roles. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + */ + function add_role( $role ) { $this->caps[$role] = true; - update_usermeta($this->id, $this->cap_key, $this->caps); + update_usermeta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); $this->update_user_level_from_caps(); } - - function remove_role($role) { - if ( empty($this->roles[$role]) || (count($this->roles) <= 1) ) + + /** + * Remove role from user. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + */ + function remove_role( $role ) { + if ( empty( $this->roles[$role] ) || ( count( $this->roles ) <= 1 ) ) return; - unset($this->caps[$role]); - update_usermeta($this->id, $this->cap_key, $this->caps); + unset( $this->caps[$role] ); + update_usermeta( $this->ID, $this->cap_key, $this->caps ); $this->get_role_caps(); } - - function set_role($role) { - foreach($this->roles as $oldrole) - unset($this->caps[$oldrole]); - $this->caps[$role] = true; - $this->roles = array($role => true); - update_usermeta($this->id, $this->cap_key, $this->caps); + + /** + * Set the role of the user. + * + * This will remove the previous roles of the user and assign the user the + * new one. You can set the role to an empty string and it will remove all + * of the roles from the user. + * + * @since 2.0.0 + * @access public + * + * @param string $role Role name. + */ + function set_role( $role ) { + 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 ); $this->get_role_caps(); $this->update_user_level_from_caps(); + do_action( 'set_user_role', $this->ID, $role ); } - function level_reduction($max, $item) { - if(preg_match('/^level_(10|[0-9])$/i', $item, $matches)) { - $level = intval($matches[1]); - return max($max, $level); - } else { - return $max; - } + /** + * Choose the maximum level the user has. + * + * Will compare the level from the $item parameter against the $max + * parameter. If the item is incorrect, then just the $max parameter value + * will be returned. + * + * Used to get the max level based on the capabilities the user has. This + * is also based on roles, so if the user is assigned the Administrator role + * then the capability 'level_10' will exist and the user will get that + * value. + * + * @since 2.0.0 + * @access public + * + * @param int $max Max level of user. + * @param string $item Level capability name. + * @return int Max Level. + */ + function level_reduction( $max, $item ) { + if ( preg_match( '/^level_(10|[0-9])$/i', $item, $matches ) ) { + $level = intval( $matches[1] ); + return max( $max, $level ); + } else { + return $max; + } } - + + /** + * Update the maximum user level for the user. + * + * Updates the 'user_level' user metadata (includes prefix that is the + * database table prefix) with the maximum user level. Gets the value from + * the all of the capabilities that the user has. + * + * @since 2.0.0 + * @access public + */ function update_user_level_from_caps() { - global $table_prefix; - $this->user_level = array_reduce(array_keys($this->allcaps), array(&$this, 'level_reduction'), 0); - update_usermeta($this->id, $table_prefix.'user_level', $this->user_level); + global $wpdb; + $this->user_level = array_reduce( array_keys( $this->allcaps ), array( &$this, 'level_reduction' ), 0 ); + update_usermeta( $this->ID, $wpdb->prefix.'user_level', $this->user_level ); } - - function add_cap($cap, $grant = true) { + + /** + * Add capability and grant or deny access to capability. + * + * @since 2.0.0 + * @access public + * + * @param string $cap Capability name. + * @param bool $grant Whether to grant capability to user. + */ + function add_cap( $cap, $grant = true ) { $this->caps[$cap] = $grant; - update_usermeta($this->id, $this->cap_key, $this->caps); + update_usermeta( $this->ID, $this->cap_key, $this->caps ); + } + + /** + * Remove capability from user. + * + * @since 2.0.0 + * @access public + * + * @param string $cap Capability name. + */ + function remove_cap( $cap ) { + if ( empty( $this->caps[$cap] ) ) return; + unset( $this->caps[$cap] ); + update_usermeta( $this->ID, $this->cap_key, $this->caps ); } - function remove_cap($cap) { - if ( empty($this->caps[$cap]) ) return; - unset($this->caps[$cap]); - update_usermeta($this->id, $this->cap_key, $this->caps); + /** + * Remove all of the capabilities of the user. + * + * @since 2.1.0 + * @access public + */ + function remove_all_caps() { + global $wpdb; + $this->caps = array(); + update_usermeta( $this->ID, $this->cap_key, '' ); + update_usermeta( $this->ID, $wpdb->prefix.'user_level', '' ); + $this->get_role_caps(); } - - //has_cap(capability_or_role_name) or - //has_cap('edit_post', post_id) - function has_cap($cap) { - if ( is_numeric($cap) ) - $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); + + /** + * Whether user has capability or role name. + * + * 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. + * + * @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 ) ) + $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 ); // Must have ALL requested caps - $capabilities = apply_filters('user_has_cap', $this->allcaps, $caps, $args); - foreach ($caps as $cap) { - //echo "Checking cap $cap
"; - if(empty($capabilities[$cap]) || !$capabilities[$cap]) + $capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args ); + foreach ( (array) $caps as $cap ) { + //echo "Checking cap $cap
"; + if ( empty( $capabilities[$cap] ) || !$capabilities[$cap] ) return false; } return true; } - function translate_level_to_cap($level) { + /** + * Convert numeric level to level capability name. + * + * Prepends 'level_' to level number. + * + * @since 2.0.0 + * @access public + * + * @param int $level Level number, 1 to 10. + * @return string + */ + function translate_level_to_cap( $level ) { return 'level_' . $level; } } -// Map meta capabilities to primitive capabilities. -function map_meta_cap($cap, $user_id) { - $args = array_slice(func_get_args(), 2); +/** + * Map meta capabilities to primitive capabilities. + * + * 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'. + * + * @since 2.0.0 + * + * @param string $cap Capability name. + * @param int $user_id User ID. + * @return array Actual capabilities for meta capability. + */ +function map_meta_cap( $cap, $user_id ) { + $args = array_slice( func_get_args(), 2 ); $caps = array(); - switch ($cap) { + switch ( $cap ) { + case 'delete_user': + $caps[] = 'delete_users'; + break; + case 'edit_user': + if ( !isset( $args[0] ) || $user_id != $args[0] ) { + $caps[] = 'edit_users'; + } + break; + case 'delete_post': + $author_data = get_userdata( $user_id ); + //echo "post ID: {$args[0]}
"; + $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 ('' != $post->post_author) { + $post_author_data = get_userdata( $post->post_author ); + } else { + //No author set yet so default to current user for cap checks + $post_author_data = $author_data; + } + + // If the user is the author... + if ( $user_id == $post_author_data->ID ) { + // If the post is published... + if ( 'publish' == $post->post_status ) { + $caps[] = 'delete_published_posts'; + } elseif ( 'trash' == $post->post_status ) { + if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) + $caps[] = 'delete_published_posts'; + } else { + // If the post is draft... + $caps[] = 'delete_posts'; + } + } else { + // The user is trying to edit someone else's post. + $caps[] = 'delete_others_posts'; + // The post is published, extra cap required. + if ( 'publish' == $post->post_status ) + $caps[] = '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 ('' != $page->post_author) { + $page_author_data = get_userdata( $page->post_author ); + } else { + //No author set yet so default to current user for cap checks + $page_author_data = $author_data; + } + + if ( $user_id == $page_author_data->ID ) { + // If the page is published... + if ( $page->post_status == 'publish' ) { + $caps[] = 'delete_published_pages'; + } elseif ( 'trash' == $page->post_status ) { + if ('publish' == get_post_meta($page->ID, '_wp_trash_meta_status', true) ) + $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'; + } + 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]}
"; - $post = get_post($args[0]); - $post_author_data = get_userdata($post->post_author); - //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "
"; + $author_data = get_userdata( $user_id ); + //echo "post ID: {$args[0]}
"; + $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 ); + } + $post_author_data = get_userdata( $post->post_author ); + //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "
"; // If the user is the author... - if ($user_id == $post_author_data->ID) { + if ( $user_id == $post_author_data->ID ) { // If the post is published... - if ($post->post_status == 'publish') + if ( 'publish' == $post->post_status ) { $caps[] = 'edit_published_posts'; - else if ($post->post_status == 'static') - $caps[] = 'edit_pages'; - else + } elseif ( 'trash' == $post->post_status ) { + if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) + $caps[] = 'edit_published_posts'; + } else { // If the post is draft... $caps[] = 'edit_posts'; - } else { - if ($post->post_status == 'static') { - $caps[] = 'edit_pages'; - break; } - + } else { // The user is trying to edit someone else's post. $caps[] = 'edit_others_posts'; // The post is published, extra cap required. - if ($post->post_status == 'publish') + if ( 'publish' == $post->post_status ) $caps[] = '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'; + } elseif ( 'trash' == $page->post_status ) { + if ('publish' == get_post_meta($page->ID, '_wp_trash_meta_status', true) ) + $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'; } break; case 'read_post': - $post = get_post($args[0]); - + $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 ( 'private' != $post->post_status ) { $caps[] = 'read'; - break; + break; } - - $author_data = get_userdata($user_id); - $post_author_data = get_userdata($post->post_author); - if ($user_id == $post_author_data->ID) + + $author_data = get_userdata( $user_id ); + $post_author_data = get_userdata( $post->post_author ); + if ( $user_id == $post_author_data->ID ) $caps[] = 'read'; else $caps[] = 'read_private_posts'; break; + case 'read_page': + $page = get_page( $args[0] ); + + if ( 'private' != $page->post_status ) { + $caps[] = 'read'; + break; + } + + $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'; + break; + case 'unfiltered_upload': + if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS == true ) + $caps[] = $cap; + else + $caps[] = 'do_not_allow'; + break; default: // If no meta caps match, return the original cap. $caps[] = $cap; } - return $caps; + return apply_filters('map_meta_cap', $caps, $cap, $user_id, $args); } -// Capability checking wrapper around the global $current_user object. -function current_user_can($capability) { - global $current_user; +/** + * Whether current user has capability or role. + * + * @since 2.0.0 + * + * @param string $capability Capability or role name. + * @return bool + */ +function current_user_can( $capability ) { + $current_user = wp_get_current_user(); + + if ( empty( $current_user ) ) + return false; - $args = array_slice(func_get_args(), 1); - $args = array_merge(array($capability), $args); + $args = array_slice( func_get_args(), 1 ); + $args = array_merge( array( $capability ), $args ); - if ( empty($current_user) ) + return call_user_func_array( array( &$current_user, 'has_cap' ), $args ); +} + +/** + * 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($post) ) return false; - return call_user_func_array(array(&$current_user, 'has_cap'), $args); -} + $author = new WP_User( $post->post_author ); -// Convenience wrappers around $wp_roles. -function get_role($role) { - global $wp_roles; + if ( empty( $author ) ) + return false; - if ( ! isset($wp_roles) ) - $wp_roles = new WP_Roles(); + $args = array_slice( func_get_args(), 2 ); + $args = array_merge( array( $capability ), $args ); - return $wp_roles->get_role($role); + return call_user_func_array( array( &$author, 'has_cap' ), $args ); } -function add_role($role, $display_name, $capabilities = '') { +/** + * Retrieve role object. + * + * @see WP_Roles::get_role() Uses method to retrieve role object. + * @since 2.0.0 + * + * @param string $role Role name. + * @return object + */ +function get_role( $role ) { global $wp_roles; - if ( ! isset($wp_roles) ) + if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); - return $wp_roles->add_role($role, $display_name, $capabilities); + return $wp_roles->get_role( $role ); } -function remove_role($role) { +/** + * Add role, if it does not exist. + * + * @see WP_Roles::add_role() Uses method to add role. + * @since 2.0.0 + * + * @param string $role Role name. + * @param string $display_name Display name for role. + * @param array $capabilities List of capabilities. + * @return null|WP_Role WP_Role object if role is added, null if already exists. + */ +function add_role( $role, $display_name, $capabilities = array() ) { global $wp_roles; - if ( ! isset($wp_roles) ) + if ( ! isset( $wp_roles ) ) $wp_roles = new WP_Roles(); - return $wp_roles->remove_role($role); -} - -// -// These are deprecated. Use current_user_can(). -// - -/* returns true if $user_id can create a new post */ -function user_can_create_post($user_id, $blog_id = 1, $category_id = 'None') { - $author_data = get_userdata($user_id); - return ($author_data->user_level > 1); -} - -/* returns true if $user_id can create a new post */ -function user_can_create_draft($user_id, $blog_id = 1, $category_id = 'None') { - $author_data = get_userdata($user_id); - return ($author_data->user_level >= 1); -} - -/* returns true if $user_id can edit $post_id */ -function user_can_edit_post($user_id, $post_id, $blog_id = 1) { - $author_data = get_userdata($user_id); - $post = get_post($post_id); - $post_author_data = get_userdata($post->post_author); - - if ( (($user_id == $post_author_data->ID) && !($post->post_status == 'publish' && $author_data->user_level < 2)) - || ($author_data->user_level > $post_author_data->user_level) - || ($author_data->user_level >= 10) ) { - return true; - } else { - return false; - } -} - -/* returns true if $user_id can delete $post_id */ -function user_can_delete_post($user_id, $post_id, $blog_id = 1) { - // right now if one can edit, one can delete - return user_can_edit_post($user_id, $post_id, $blog_id); -} - -/* returns true if $user_id can set new posts' dates on $blog_id */ -function user_can_set_post_date($user_id, $blog_id = 1, $category_id = 'None') { - $author_data = get_userdata($user_id); - return (($author_data->user_level > 4) && user_can_create_post($user_id, $blog_id, $category_id)); -} - -/* returns true if $user_id can edit $post_id's date */ -function user_can_edit_post_date($user_id, $post_id, $blog_id = 1) { - $author_data = get_userdata($user_id); - return (($author_data->user_level > 4) && user_can_edit_post($user_id, $post_id, $blog_id)); + return $wp_roles->add_role( $role, $display_name, $capabilities ); } -/* returns true if $user_id can edit $post_id's comments */ -function user_can_edit_post_comments($user_id, $post_id, $blog_id = 1) { - // right now if one can edit a post, one can edit comments made on it - return user_can_edit_post($user_id, $post_id, $blog_id); -} +/** + * Remove role, if it exists. + * + * @see WP_Roles::remove_role() Uses method to remove role. + * @since 2.0.0 + * + * @param string $role Role name. + * @return null + */ +function remove_role( $role ) { + global $wp_roles; -/* returns true if $user_id can delete $post_id's comments */ -function user_can_delete_post_comments($user_id, $post_id, $blog_id = 1) { - // right now if one can edit comments, one can delete comments - return user_can_edit_post_comments($user_id, $post_id, $blog_id); -} + if ( ! isset( $wp_roles ) ) + $wp_roles = new WP_Roles(); -function user_can_edit_user($user_id, $other_user) { - $user = get_userdata($user_id); - $other = get_userdata($other_user); - if ( $user->user_level > $other->user_level || $user->user_level > 8 || $user->ID == $other->ID ) - return true; - else - return false; + return $wp_roles->remove_role( $role ); } ?>