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;
/**
* Constructor
*
* @since 2.0.0
*/
function __construct() {
$this->_init();
}
/**
* 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
* 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, $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 ) )
return;
$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'];
}
}
/**
* 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
);
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];
}
/**
* 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] );
if ( $this->use_db )
update_option( $this->role_key, $this->roles );
}
/**
* 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;
if ( $this->use_db )
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 );
}
/**
* 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;
}
/**
* 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] );
}
}
/**
* 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;
/**
* 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.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @param array $capabilities List of capabilities.
*/
function __construct( $role, $capabilities ) {
$this->name = $role;
$this->capabilities = $capabilities;
}
/**
* 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 ) )
$wp_roles = new WP_Roles();
$this->capabilities[$cap] = $grant;
$wp_roles->add_cap( $this->name, $cap, $grant );
}
/**
* 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 ) )
$wp_roles = new WP_Roles();
unset( $this->capabilities[$cap] );
$wp_roles->remove_cap( $this->name, $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;
}
}
/**
* 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();
/**
* All capabilities the user has, including individual and role based.
*
* @since 2.0.0
* @access public
* @var array
*/
var $allcaps = array();
/**
* 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;
/**
* 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
* @param int $blog_id Optional Blog ID, defaults to current blog.
* @return WP_User
*/
function __construct( $id, $name = '', $blog_id = '' ) {
if ( empty( $id ) && empty( $name ) )
return;
if ( ! is_numeric( $id ) ) {
$name = $id;
$id = 0;
}
if ( ! empty( $id ) )
$this->data = get_userdata( $id );
else
$this->data = get_userdatabylogin( $name );
if ( empty( $this->data->ID ) )
return;
foreach ( get_object_vars( $this->data ) as $key => $value ) {
$this->{$key} = $value;
}
$this->id = $this->ID;
$this->for_blog( $blog_id );
}
/**
* 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
*
* @param string $cap_key Optional capability key
* @access protected
*/
function _init_caps( $cap_key = '' ) {
global $wpdb;
if ( empty($cap_key) )
$this->cap_key = $wpdb->prefix . 'capabilities';
else
$this->cap_key = $cap_key;
$this->caps = &$this->{$this->cap_key};
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 ) )
$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' ) );
//Build $allcaps from role caps, overlay user's $caps
$this->allcaps = array();
foreach ( (array) $this->roles as $role ) {
$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 );
}
/**
* 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_user_meta( $this->ID, $this->cap_key, $this->caps );
$this->get_role_caps();
$this->update_user_level_from_caps();
}
/**
* Remove role from user.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
*/
function remove_role( $role ) {
if ( !in_array($role, $this->roles) )
return;
unset( $this->caps[$role] );
update_user_meta( $this->ID, $this->cap_key, $this->caps );
$this->get_role_caps();
$this->update_user_level_from_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 ( 1 == count( $this->roles ) && $role == $this->roles[0] )
return;
if ( !empty( $role ) ) {
$this->caps[$role] = true;
$this->roles = array( $role => true );
} else {
$this->roles = false;
}
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 );
}
/**
* 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 $wpdb;
$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 );
}
/**
* 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_user_meta( $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_user_meta( $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();
delete_user_meta( $this->ID, $this->cap_key );
delete_user_meta( $this->ID, $wpdb->prefix . 'user_level' );
$this->get_role_caps();
}
/**
* 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 ) ) {
_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] )
return false;
}
return true;
}
/**
* 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;
}
/**
* 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 );
}
}
/**
* 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', 'remove_user', 'promote_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 ) {
case 'remove_user':
$caps[] = 'remove_users';
break;
case 'promote_user':
$caps[] = 'promote_users';
break;
case 'edit_user':
// Allow user to edit itself
if ( isset( $args[0] ) && $user_id == $args[0] )
break;
// Fall through
case 'edit_users':
// 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'; // Explicit due to primitive fall through
break;
case 'delete_post':
case 'delete_page':
$author_data = get_userdata( $user_id );
$post = get_post( $args[0] );
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 ( 'delete_post' == $cap )
$cap = $post_type->cap->$cap;
break;
}
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 ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) {
// If the post is published...
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[] = $post_type->cap->delete_posts;
}
} else {
// The user is trying to edit someone else's post.
$caps[] = $post_type->cap->delete_others_posts;
// The post is published, extra cap required.
if ( 'publish' == $post->post_status )
$caps[] = $post_type->cap->delete_published_posts;
elseif ( 'private' == $post->post_status )
$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':
case 'edit_page':
$author_data = get_userdata( $user_id );
$post = get_post( $args[0] );
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;
}
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;
}
//echo "current user id : $user_id, post author id: " . $post_author_data->ID . "
";
// If the user is the author...
if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) {
// If the post is published...
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[] = $post_type->cap->edit_posts;
}
} else {
// The user is trying to edit someone else's post.
$caps[] = $post_type->cap->edit_others_posts;
// The post is published, extra cap required.
if ( 'publish' == $post->post_status )
$caps[] = $post_type->cap->edit_published_posts;
elseif ( 'private' == $post->post_status )
$caps[] = $post_type->cap->edit_private_posts;
}
break;
case 'read_post':
case 'read_page':
$author_data = get_userdata( $user_id );
$post = get_post( $args[0] );
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 ( 'read_post' == $cap )
$cap = $post_type->cap->$cap;
break;
}
if ( 'private' != $post->post_status ) {
$caps[] = $post_type->cap->read;
break;
}
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 ( is_object( $post_author_data ) && $user_id == $post_author_data->ID )
$caps[] = $post_type->cap->read;
else
$caps[] = $post_type->cap->read_private_posts;
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 );
$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 && ( !is_multisite() || is_super_admin( $user_id ) ) )
$caps[] = $cap;
else
$caps[] = 'do_not_allow';
break;
case 'edit_files':
case 'edit_plugins':
case 'edit_themes':
if ( defined('DISALLOW_FILE_EDIT') && DISALLOW_FILE_EDIT ) {
$caps[] = 'do_not_allow';
break;
}
// Fall through if not DISALLOW_FILE_EDIT.
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 edits core, plugin, or theme files.
// Files in uploads are excepted.
if ( defined('DISALLOW_FILE_MODS') && DISALLOW_FILE_MODS ) {
$caps[] = 'do_not_allow';
break;
}
// Fall through if not DISALLOW_FILE_MODS.
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';
break;
}
// Fall through if not DISALLOW_UNFILTERED_HTML
case 'delete_user':
case 'delete_users':
// If multisite these caps are allowed only for super admins.
if ( is_multisite() && !is_super_admin( $user_id ) ) {
$caps[] = 'do_not_allow';
} else {
if ( 'delete_user' == $cap )
$cap = 'delete_users';
$caps[] = $cap;
}
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;
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;
}
return apply_filters('map_meta_cap', $caps, $cap, $user_id, $args);
}
/**
* 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 ), $args );
return call_user_func_array( array( &$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 ) {
$current_user = wp_get_current_user();
if ( empty( $current_user ) )
return false;
// Create new object to avoid stomping the global current_user.
$user = new WP_User( $current_user->id) ;
// Set the blog id. @todo add blog id arg to WP_User constructor?
$user->for_blog( $blog_id );
$args = array_slice( func_get_args(), 2 );
$args = array_merge( array( $capability ), $args );
return call_user_func_array( array( &$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;
$author = new WP_User( $post->post_author );
if ( empty( $author->ID ) )
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 = new WP_User( $user );
if ( ! $user || ! $user->ID )
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 );
}
/**
* 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 ) )
$wp_roles = new WP_Roles();
return $wp_roles->get_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, 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() ) {
global $wp_roles;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
return $wp_roles->add_role( $role, $display_name, $capabilities );
}
/**
* 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;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
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 = new WP_User( $user_id );
else
$user = wp_get_current_user();
if ( empty( $user->id ) )
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;
}
?>
ns in PHP4, the purpose is
* maintainability. When PHP5 is finally the requirement, it will be easy to add the static keyword
* to the code. It is not as easy to convert a function to a method after enough code uses the old
* way.
*
* Debugging includes several actions, which pass different variables for debugging the HTTP API.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
class WP_Http {
/**
* Send a HTTP request to a URI.
*
* The body and headers are part of the arguments. The 'body' argument is for the body and will
* accept either a string or an array. The 'headers' argument should be an array, but a string
* is acceptable. If the 'body' argument is an array, then it will automatically be escaped
* using http_build_query().
*
* The only URI that are supported in the HTTP Transport implementation are the HTTP and HTTPS
* protocols. HTTP and HTTPS are assumed so the server might not know how to handle the send
* headers. Other protocols are unsupported and most likely will fail.
*
* The defaults are 'method', 'timeout', 'redirection', 'httpversion', 'blocking' and
* 'user-agent'.
*
* Accepted 'method' values are 'GET', 'POST', and 'HEAD', some transports technically allow
* others, but should not be assumed. The 'timeout' is used to sent how long the connection
* should stay open before failing when no response. 'redirection' is used to track how many
* redirects were taken and used to sent the amount for other transports, but not all transports
* accept setting that value.
*
* The 'httpversion' option is used to sent the HTTP version and accepted values are '1.0', and
* '1.1' and should be a string. Version 1.1 is not supported, because of chunk response. The
* 'user-agent' option is the user-agent and is used to replace the default user-agent, which is
* 'WordPress/WP_Version', where WP_Version is the value from $wp_version.
*
* 'blocking' is the default, which is used to tell the transport, whether it should halt PHP
* while it performs the request or continue regardless. Actually, that isn't entirely correct.
* Blocking mode really just means whether the fread should just pull what it can whenever it
* gets bytes or if it should wait until it has enough in the buffer to read or finishes reading
* the entire content. It doesn't actually always mean that PHP will continue going after making
* the request.
*
* @access public
* @since 2.7.0
* @todo Refactor this code. The code in this method extends the scope of its original purpose
* and should be refactored to allow for cleaner abstraction and reduce duplication of the
* code. One suggestion is to create a class specifically for the arguments, however
* preliminary refactoring to this affect has affect more than just the scope of the
* arguments. Something to ponder at least.
*
* @param string $url URI resource.
* @param str|array $args Optional. Override the defaults.
* @return array|object Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
function request( $url, $args = array() ) {
global $wp_version;
$defaults = array(
'method' => 'GET',
'timeout' => apply_filters( 'http_request_timeout', 5),
'redirection' => apply_filters( 'http_request_redirection_count', 5),
'httpversion' => apply_filters( 'http_request_version', '1.0'),
'user-agent' => apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ) ),
'blocking' => true,
'headers' => array(),
'cookies' => array(),
'body' => null,
'compress' => false,
'decompress' => true,
'sslverify' => true,
'stream' => false,
'filename' => null
);
// Pre-parse for the HEAD checks.
$args = wp_parse_args( $args );
// By default, Head requests do not cause redirections.
if ( isset($args['method']) && 'HEAD' == $args['method'] )
$defaults['redirection'] = 0;
$r = wp_parse_args( $args, $defaults );
$r = apply_filters( 'http_request_args', $r, $url );
// Certain classes decrement this, store a copy of the original value for loop purposes.
$r['_redirection'] = $r['redirection'];
// Allow plugins to short-circuit the request
$pre = apply_filters( 'pre_http_request', false, $r, $url );
if ( false !== $pre )
return $pre;
$arrURL = parse_url( $url );
if ( empty( $url ) || empty( $arrURL['scheme'] ) )
return new WP_Error('http_request_failed', __('A valid URL was not provided.'));
if ( $this->block_request( $url ) )
return new WP_Error( 'http_request_failed', __( 'User has blocked requests through HTTP.' ) );
// Determine if this is a https call and pass that on to the transport functions
// so that we can blacklist the transports that do not support ssl verification
$r['ssl'] = $arrURL['scheme'] == 'https' || $arrURL['scheme'] == 'ssl';
// Determine if this request is to OUR install of WordPress
$homeURL = parse_url( get_bloginfo( 'url' ) );
$r['local'] = $homeURL['host'] == $arrURL['host'] || 'localhost' == $arrURL['host'];
unset( $homeURL );
// If we are streaming to a file but no filename was given drop it in the WP temp dir
// and pick it's name using the basename of the $url
if ( $r['stream'] && empty( $r['filename'] ) )
$r['filename'] = get_temp_dir() . basename( $url );
// Force some settings if we are streaming to a file and check for existence and perms of destination directory
if ( $r['stream'] ) {
$r['blocking'] = true;
if ( ! is_writable( dirname( $r['filename'] ) ) )
return new WP_Error( 'http_request_failed', __( 'Destination directory for file streaming does not exist or is not writable.' ) );
}
if ( is_null( $r['headers'] ) )
$r['headers'] = array();
if ( ! is_array( $r['headers'] ) ) {
$processedHeaders = WP_Http::processHeaders( $r['headers'] );
$r['headers'] = $processedHeaders['headers'];
}
if ( isset( $r['headers']['User-Agent'] ) ) {
$r['user-agent'] = $r['headers']['User-Agent'];
unset( $r['headers']['User-Agent'] );
}
if ( isset( $r['headers']['user-agent'] ) ) {
$r['user-agent'] = $r['headers']['user-agent'];
unset( $r['headers']['user-agent'] );
}
// Construct Cookie: header if any cookies are set
WP_Http::buildCookieHeader( $r );
if ( WP_Http_Encoding::is_available() )
$r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding();
if ( empty($r['body']) ) {
$r['body'] = null;
// Some servers fail when sending content without the content-length header being set.
// Also, to fix another bug, we only send when doing POST and PUT and the content-length
// header isn't already set.
if ( ($r['method'] == 'POST' || $r['method'] == 'PUT') && ! isset( $r['headers']['Content-Length'] ) )
$r['headers']['Content-Length'] = 0;
} else {
if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {
$r['body'] = http_build_query( $r['body'], null, '&' );
$r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option( 'blog_charset' );
$r['headers']['Content-Length'] = strlen( $r['body'] );
}
if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )
$r['headers']['Content-Length'] = strlen( $r['body'] );
}
return $this->_dispatch_request($url, $r);
}
/**
* Tests which transports are capable of supporting the request.
*
* @since 3.2.0
* @access private
*
* @param array $args Request arguments
* @param string $url URL to Request
*
* @return string|false Class name for the first transport that claims to support the request. False if no transport claims to support the request.
*/
public function _get_first_available_transport( $args, $url = null ) {
$request_order = array( 'curl', 'streams', 'fsockopen' );
// Loop over each transport on each HTTP request looking for one which will serve this request's needs
foreach ( $request_order as $transport ) {
$class = 'WP_HTTP_' . $transport;
// Check to see if this transport is a possibility, calls the transport statically
if ( !call_user_func( array( $class, 'test' ), $args, $url ) )
continue;
return $class;
}
return false;
}
/**
* Dispatches a HTTP request to a supporting transport.
*
* Tests each transport in order to find a transport which matches the request arguements.
* Also caches the transport instance to be used later.
*
* The order for blocking requests is cURL, Streams, and finally Fsockopen.
* The order for non-blocking requests is cURL, Streams and Fsockopen().
*
* There are currently issues with "localhost" not resolving correctly with DNS. This may cause
* an error "failed to open stream: A connection attempt failed because the connected party did
* not properly respond after a period of time, or established connection failed because [the]
* connected host has failed to respond."
*
* @since 3.2.0
* @access private
*
* @param string $url URL to Request
* @param array $args Request arguments
* @return array|object Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
private function _dispatch_request( $url, $args ) {
static $transports = array();
$class = $this->_get_first_available_transport( $args, $url );
if ( !$class )
return new WP_Error( 'http_failure', __( 'There are no HTTP transports available which can complete the requested request.' ) );
// Transport claims to support request, instantiate it and give it a whirl.
if ( empty( $transports[$class] ) )
$transports[$class] = new $class;
$response = $transports[$class]->request( $url, $args );
do_action( 'http_api_debug', $response, 'response', $class );
if ( is_wp_error( $response ) )
return $response;
return apply_filters( 'http_response', $response, $args, $url );
}
/**
* Uses the POST HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @access public
* @since 2.7.0
*
* @param string $url URI resource.
* @param str|array $args Optional. Override the defaults.
* @return array|object Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
function post($url, $args = array()) {
$defaults = array('method' => 'POST');
$r = wp_parse_args( $args, $defaults );
return $this->request($url, $r);
}
/**
* Uses the GET HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @access public
* @since 2.7.0
*
* @param string $url URI resource.
* @param str|array $args Optional. Override the defaults.
* @return array|object Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
function get($url, $args = array()) {
$defaults = array('method' => 'GET');
$r = wp_parse_args( $args, $defaults );
return $this->request($url, $r);
}
/**
* Uses the HEAD HTTP method.
*
* Used for sending data that is expected to be in the body.
*
* @access public
* @since 2.7.0
*
* @param string $url URI resource.
* @param str|array $args Optional. Override the defaults.
* @return array|object Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
*/
function head($url, $args = array()) {
$defaults = array('method' => 'HEAD');
$r = wp_parse_args( $args, $defaults );
return $this->request($url, $r);
}
/**
* Parses the responses and splits the parts into headers and body.
*
* @access public
* @static
* @since 2.7.0
*
* @param string $strResponse The full response string
* @return array Array with 'headers' and 'body' keys.
*/
function processResponse($strResponse) {
$res = explode("\r\n\r\n", $strResponse, 2);
return array('headers' => $res[0], 'body' => isset($res[1]) ? $res[1] : '');
}
/**
* Transform header string into an array.
*
* If an array is given then it is assumed to be raw header data with numeric keys with the
* headers as the values. No headers must be passed that were already processed.
*
* @access public
* @static
* @since 2.7.0
*
* @param string|array $headers
* @return array Processed string headers. If duplicate headers are encountered,
* Then a numbered array is returned as the value of that header-key.
*/
function processHeaders($headers) {
// split headers, one per array element
if ( is_string($headers) ) {
// tolerate line terminator: CRLF = LF (RFC 2616 19.3)
$headers = str_replace("\r\n", "\n", $headers);
// unfold folded header fields. LWS = [CRLF] 1*( SP | HT ) , (RFC 2616 2.2)
$headers = preg_replace('/\n[ \t]/', ' ', $headers);
// create the headers array
$headers = explode("\n", $headers);
}
$response = array('code' => 0, 'message' => '');
// If a redirection has taken place, The headers for each page request may have been passed.
// In this case, determine the final HTTP header and parse from there.
for ( $i = count($headers)-1; $i >= 0; $i-- ) {
if ( !empty($headers[$i]) && false === strpos($headers[$i], ':') ) {
$headers = array_splice($headers, $i);
break;
}
}
$cookies = array();
$newheaders = array();
foreach ( (array) $headers as $tempheader ) {
if ( empty($tempheader) )
continue;
if ( false === strpos($tempheader, ':') ) {
$stack = explode(' ', $tempheader, 3);
$stack[] = '';
list( , $response['code'], $response['message']) = $stack;
continue;
}
list($key, $value) = explode(':', $tempheader, 2);
if ( !empty( $value ) ) {
$key = strtolower( $key );
if ( isset( $newheaders[$key] ) ) {
if ( !is_array($newheaders[$key]) )
$newheaders[$key] = array($newheaders[$key]);
$newheaders[$key][] = trim( $value );
} else {
$newheaders[$key] = trim( $value );
}
if ( 'set-cookie' == $key )
$cookies[] = new WP_Http_Cookie( $value );
}
}
return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies);
}
/**
* Takes the arguments for a ::request() and checks for the cookie array.
*
* If it's found, then it's assumed to contain WP_Http_Cookie objects, which are each parsed
* into strings and added to the Cookie: header (within the arguments array). Edits the array by
* reference.
*
* @access public
* @version 2.8.0
* @static
*
* @param array $r Full array of args passed into ::request()
*/
function buildCookieHeader( &$r ) {
if ( ! empty($r['cookies']) ) {
$cookies_header = '';
foreach ( (array) $r['cookies'] as $cookie ) {
$cookies_header .= $cookie->getHeaderValue() . '; ';
}
$cookies_header = substr( $cookies_header, 0, -2 );
$r['headers']['cookie'] = $cookies_header;
}
}
/**
* Decodes chunk transfer-encoding, based off the HTTP 1.1 specification.
*
* Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support
* returning footer headers. Shouldn't be too difficult to support it though.
*
* @todo Add support for footer chunked headers.
* @access public
* @since 2.7.0
* @static
*
* @param string $body Body content
* @return string Chunked decoded body on success or raw body on failure.
*/
function chunkTransferDecode($body) {
$body = str_replace(array("\r\n", "\r"), "\n", $body);
// The body is not chunked encoding or is malformed.
if ( ! preg_match( '/^[0-9a-f]+(\s|\n)+/mi', trim($body) ) )
return $body;
$parsedBody = '';
//$parsedHeaders = array(); Unsupported
while ( true ) {
$hasChunk = (bool) preg_match( '/^([0-9a-f]+)(\s|\n)+/mi', $body, $match );
if ( $hasChunk ) {
if ( empty( $match[1] ) )
return $body;
$length = hexdec( $match[1] );
$chunkLength = strlen( $match[0] );
$strBody = substr($body, $chunkLength, $length);
$parsedBody .= $strBody;
$body = ltrim(str_replace(array($match[0], $strBody), '', $body), "\n");
if ( "0" == trim($body) )
return $parsedBody; // Ignore footer headers.
} else {
return $body;
}
}
}
/**
* Block requests through the proxy.
*
* Those who are behind a proxy and want to prevent access to certain hosts may do so. This will
* prevent plugins from working and core functionality, if you don't include api.wordpress.org.
*
* You block external URL requests by defining WP_HTTP_BLOCK_EXTERNAL as true in your wp-config.php
* file and this will only allow localhost and your blog to make requests. The constant
* WP_ACCESSIBLE_HOSTS will allow additional hosts to go through for requests. The format of the
* WP_ACCESSIBLE_HOSTS constant is a comma separated list of hostnames to allow, wildcard domains
* are supported, eg *.wordpress.org will allow for all subdomains of wordpress.org to be contacted.
*
* @since 2.8.0
* @link http://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
* @link http://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS
*
* @param string $uri URI of url.
* @return bool True to block, false to allow.
*/
function block_request($uri) {
// We don't need to block requests, because nothing is blocked.
if ( ! defined( 'WP_HTTP_BLOCK_EXTERNAL' ) || ! WP_HTTP_BLOCK_EXTERNAL )
return false;
// parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
// This will be displayed on blogs, which is not reasonable.
$check = @parse_url($uri);
/* Malformed URL, can not process, but this could mean ssl, so let through anyway.
*
* This isn't very security sound. There are instances where a hacker might attempt
* to bypass the proxy and this check. However, the reason for this behavior is that
* WordPress does not do any checking currently for non-proxy requests, so it is keeps with
* the default unsecure nature of the HTTP request.
*/
if ( $check === false )
return false;
$home = parse_url( get_option('siteurl') );
// Don't block requests back to ourselves by default
if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
return apply_filters('block_local_requests', false);
if ( !defined('WP_ACCESSIBLE_HOSTS') )
return true;
static $accessible_hosts;
static $wildcard_regex = false;
if ( null == $accessible_hosts ) {
$accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);
if ( false !== strpos(WP_ACCESSIBLE_HOSTS, '*') ) {
$wildcard_regex = array();
foreach ( $accessible_hosts as $host )
$wildcard_regex[] = str_replace('\*', '[\w.]+?', preg_quote($host, '/'));
$wildcard_regex = '/^(' . implode('|', $wildcard_regex) . ')$/i';
}
}
if ( !empty($wildcard_regex) )
return !preg_match($wildcard_regex, $check['host']);
else
return !in_array( $check['host'], $accessible_hosts ); //Inverse logic, If its in the array, then we can't access it.
}
}
/**
* HTTP request method uses fsockopen function to retrieve the url.
*
* This would be the preferred method, but the fsockopen implementation has the most overhead of all
* the HTTP transport implementations.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
class WP_Http_Fsockopen {
/**
* Send a HTTP request to a URI using fsockopen().
*
* Does not support non-blocking mode.
*
* @see WP_Http::request For default options descriptions.
*
* @since 2.7
* @access public
* @param string $url URI resource.
* @param str|array $args Optional. Override the defaults.
* @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys.
*/
function request($url, $args = array()) {
$defaults = array(
'method' => 'GET', 'timeout' => 5,
'redirection' => 5, 'httpversion' => '1.0',
'blocking' => true,
'headers' => array(), 'body' => null, 'cookies' => array()
);
$r = wp_parse_args( $args, $defaults );
if ( isset($r['headers']['User-Agent']) ) {
$r['user-agent'] = $r['headers']['User-Agent'];
unset($r['headers']['User-Agent']);
} else if ( isset($r['headers']['user-agent']) ) {
$r['user-agent'] = $r['headers']['user-agent'];
unset($r['headers']['user-agent']);
}
// Construct Cookie: header if any cookies are set
WP_Http::buildCookieHeader( $r );
$iError = null; // Store error number
$strError = null; // Store error string
$arrURL = parse_url($url);
$fsockopen_host = $arrURL['host'];
$secure_transport = false;
if ( ! isset( $arrURL['port'] ) ) {
if ( ( $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https' ) && extension_loaded('openssl') ) {
$fsockopen_host = "ssl://$fsockopen_host";
$arrURL['port'] = 443;
$secure_transport = true;
} else {
$arrURL['port'] = 80;
}
}
//fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1,
// which fails when the server is not set up for it. For compatibility, always connect to the IPv4 address.
if ( 'localhost' == strtolower($fsockopen_host) )
$fsockopen_host = '127.0.0.1';
// There are issues with the HTTPS and SSL protocols that cause errors that can be safely
// ignored and should be ignored.
if ( true === $secure_transport )
$error_reporting = error_reporting(0);
$startDelay = time();
$proxy = new WP_HTTP_Proxy();
if ( !WP_DEBUG ) {
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
$handle = @fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
else
$handle = @fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
} else {
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
$handle = fsockopen( $proxy->host(), $proxy->port(), $iError, $strError, $r['timeout'] );
else
$handle = fsockopen( $fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout'] );
}
$endDelay = time();
// If the delay is greater than the timeout then fsockopen should't be used, because it will
// cause a long delay.
$elapseDelay = ($endDelay-$startDelay) > $r['timeout'];
if ( true === $elapseDelay )
add_option( 'disable_fsockopen', $endDelay, null, true );
if ( false === $handle )
return new WP_Error('http_request_failed', $iError . ': ' . $strError);
$timeout = (int) floor( $r['timeout'] );
$utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
stream_set_timeout( $handle, $timeout, $utimeout );
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) //Some proxies require full URL in this field.
$requestPath = $url;
else
$requestPath = $arrURL['path'] . ( isset($arrURL['query']) ? '?' . $arrURL['query'] : '' );
if ( empty($requestPath) )
$requestPath .= '/';
$strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n";
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) )
$strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";
else
$strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";
if ( isset($r['user-agent']) )
$strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n";
if ( is_array($r['headers']) ) {
foreach ( (array) $r['headers'] as $header => $headerValue )
$strHeaders .= $header . ': ' . $headerValue . "\r\n";
} else {
$strHeaders .= $r['headers'];
}
if ( $proxy->use_authentication() )
$strHeaders .= $proxy->authentication_header() . "\r\n";
$strHeaders .= "\r\n";
if ( ! is_null($r['body']) )
$strHeaders .= $r['body'];
fwrite($handle, $strHeaders);
if ( ! $r['blocking'] ) {
fclose($handle);
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
}
$strResponse = '';
$bodyStarted = false;
// If streaming to a file setup the file handle
if ( $r['stream'] ) {
if ( ! WP_DEBUG )
$stream_handle = @fopen( $r['filename'], 'w+' );
else
$stream_handle = fopen( $r['filename'], 'w+' );
if ( ! $stream_handle )
return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
while ( ! feof($handle) ) {
$block = fread( $handle, 4096 );
if ( $bodyStarted ) {
fwrite( $stream_handle, $block );
} else {
$strResponse .= $block;
if ( strpos( $strResponse, "\r\n\r\n" ) ) {
$process = WP_Http::processResponse( $strResponse );
$bodyStarted = true;
fwrite( $stream_handle, $process['body'] );
unset( $strResponse );
$process['body'] = '';
}
}
}
fclose( $stream_handle );
} else {
while ( ! feof($handle) )
$strResponse .= fread( $handle, 4096 );
$process = WP_Http::processResponse( $strResponse );
unset( $strResponse );
}
fclose( $handle );
if ( true === $secure_transport )
error_reporting($error_reporting);
$arrHeaders = WP_Http::processHeaders( $process['headers'] );
// If location is found, then assume redirect and redirect to location.
if ( isset($arrHeaders['headers']['location']) && 0 !== $r['_redirection'] ) {
if ( $r['redirection']-- > 0 ) {
return $this->request($arrHeaders['headers']['location'], $r);
} else {
return new WP_Error('http_request_failed', __('Too many redirects.'));
}
}
// If the body was chunk encoded, then decode it.
if ( ! empty( $process['body'] ) && isset( $arrHeaders['headers']['transfer-encoding'] ) && 'chunked' == $arrHeaders['headers']['transfer-encoding'] )
$process['body'] = WP_Http::chunkTransferDecode($process['body']);
if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($arrHeaders['headers']) )
$process['body'] = WP_Http_Encoding::decompress( $process['body'] );
return array( 'headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies'], 'filename' => $r['filename'] );
}
/**
* Whether this class can be used for retrieving an URL.
*
* @since 2.7.0
* @static
* @return boolean False means this class can not be used, true means it can.
*/
function test( $args = array() ) {
if ( ! function_exists( 'fsockopen' ) )
return false;
if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours
return false;
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl && ! extension_loaded( 'openssl' ) )
return false;
return apply_filters( 'use_fsockopen_transport', true, $args );
}
}
/**
* HTTP request method uses Streams to retrieve the url.
*
* Requires PHP 5.0+ and uses fopen with stream context. Requires that 'allow_url_fopen' PHP setting
* to be enabled.
*
* Second preferred method for getting the URL, for PHP 5.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7.0
*/
class WP_Http_Streams {
/**
* Send a HTTP request to a URI using streams with fopen().
*
* @access public
* @since 2.7.0
*
* @param string $url
* @param str|array $args Optional. Override the defaults.
* @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys.
*/
function request($url, $args = array()) {
$defaults = array(
'method' => 'GET', 'timeout' => 5,
'redirection' => 5, 'httpversion' => '1.0',
'blocking' => true,
'headers' => array(), 'body' => null, 'cookies' => array()
);
$r = wp_parse_args( $args, $defaults );
if ( isset($r['headers']['User-Agent']) ) {
$r['user-agent'] = $r['headers']['User-Agent'];
unset($r['headers']['User-Agent']);
} else if ( isset($r['headers']['user-agent']) ) {
$r['user-agent'] = $r['headers']['user-agent'];
unset($r['headers']['user-agent']);
}
// Construct Cookie: header if any cookies are set
WP_Http::buildCookieHeader( $r );
$arrURL = parse_url($url);
if ( false === $arrURL )
return new WP_Error('http_request_failed', sprintf(__('Malformed URL: %s'), $url));
if ( 'http' != $arrURL['scheme'] && 'https' != $arrURL['scheme'] )
$url = preg_replace('|^' . preg_quote($arrURL['scheme'], '|') . '|', 'http', $url);
// Convert Header array to string.
$strHeaders = '';
if ( is_array( $r['headers'] ) )
foreach ( $r['headers'] as $name => $value )
$strHeaders .= "{$name}: $value\r\n";
else if ( is_string( $r['headers'] ) )
$strHeaders = $r['headers'];
$is_local = isset($args['local']) && $args['local'];
$ssl_verify = isset($args['sslverify']) && $args['sslverify'];
if ( $is_local )
$ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
elseif ( ! $is_local )
$ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
$arrContext = array('http' =>
array(
'method' => strtoupper($r['method']),
'user_agent' => $r['user-agent'],
'max_redirects' => $r['redirection'] + 1, // See #11557
'protocol_version' => (float) $r['httpversion'],
'header' => $strHeaders,
'ignore_errors' => true, // Return non-200 requests.
'timeout' => $r['timeout'],
'ssl' => array(
'verify_peer' => $ssl_verify,
'verify_host' => $ssl_verify
)
)
);
$proxy = new WP_HTTP_Proxy();
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
$arrContext['http']['proxy'] = 'tcp://' . $proxy->host() . ':' . $proxy->port();
$arrContext['http']['request_fulluri'] = true;
// We only support Basic authentication so this will only work if that is what your proxy supports.
if ( $proxy->use_authentication() )
$arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n";
}
if ( ! empty($r['body'] ) )
$arrContext['http']['content'] = $r['body'];
$context = stream_context_create($arrContext);
if ( !WP_DEBUG )
$handle = @fopen($url, 'r', false, $context);
else
$handle = fopen($url, 'r', false, $context);
if ( ! $handle )
return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $url));
$timeout = (int) floor( $r['timeout'] );
$utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
stream_set_timeout( $handle, $timeout, $utimeout );
if ( ! $r['blocking'] ) {
stream_set_blocking($handle, 0);
fclose($handle);
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
}
if ( $r['stream'] ) {
if ( ! WP_DEBUG )
$stream_handle = @fopen( $r['filename'], 'w+' );
else
$stream_handle = fopen( $r['filename'], 'w+' );
if ( ! $stream_handle )
return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
stream_copy_to_stream( $handle, $stream_handle );
fclose( $stream_handle );
$strResponse = '';
} else {
$strResponse = stream_get_contents( $handle );
}
$meta = stream_get_meta_data( $handle );
fclose( $handle );
$processedHeaders = array();
if ( isset( $meta['wrapper_data']['headers'] ) )
$processedHeaders = WP_Http::processHeaders($meta['wrapper_data']['headers']);
else
$processedHeaders = WP_Http::processHeaders($meta['wrapper_data']);
// Streams does not provide an error code which we can use to see why the request stream stoped.
// We can however test to see if a location header is present and return based on that.
if ( isset($processedHeaders['headers']['location']) && 0 !== $args['_redirection'] )
return new WP_Error('http_request_failed', __('Too many redirects.'));
if ( ! empty( $strResponse ) && isset( $processedHeaders['headers']['transfer-encoding'] ) && 'chunked' == $processedHeaders['headers']['transfer-encoding'] )
$strResponse = WP_Http::chunkTransferDecode($strResponse);
if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($processedHeaders['headers']) )
$strResponse = WP_Http_Encoding::decompress( $strResponse );
return array( 'headers' => $processedHeaders['headers'], 'body' => $strResponse, 'response' => $processedHeaders['response'], 'cookies' => $processedHeaders['cookies'], 'filename' => $r['filename'] );
}
/**
* Whether this class can be used for retrieving an URL.
*
* @static
* @access public
* @since 2.7.0
*
* @return boolean False means this class can not be used, true means it can.
*/
function test( $args = array() ) {
if ( ! function_exists( 'fopen' ) )
return false;
if ( ! function_exists( 'ini_get' ) || true != ini_get( 'allow_url_fopen' ) )
return false;
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl && ! extension_loaded( 'openssl' ) )
return false;
return apply_filters( 'use_streams_transport', true, $args );
}
}
/**
* HTTP request method uses Curl extension to retrieve the url.
*
* Requires the Curl extension to be installed.
*
* @package WordPress
* @subpackage HTTP
* @since 2.7
*/
class WP_Http_Curl {
/**
* Temporary header storage for use with streaming to a file.
*
* @since 3.2.0
* @access private
* @var string
*/
private $headers = '';
/**
* Send a HTTP request to a URI using cURL extension.
*
* @access public
* @since 2.7.0
*
* @param string $url
* @param str|array $args Optional. Override the defaults.
* @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys.
*/
function request($url, $args = array()) {
$defaults = array(
'method' => 'GET', 'timeout' => 5,
'redirection' => 5, 'httpversion' => '1.0',
'blocking' => true,
'headers' => array(), 'body' => null, 'cookies' => array()
);
$r = wp_parse_args( $args, $defaults );
if ( isset($r['headers']['User-Agent']) ) {
$r['user-agent'] = $r['headers']['User-Agent'];
unset($r['headers']['User-Agent']);
} else if ( isset($r['headers']['user-agent']) ) {
$r['user-agent'] = $r['headers']['user-agent'];
unset($r['headers']['user-agent']);
}
// Construct Cookie: header if any cookies are set.
WP_Http::buildCookieHeader( $r );
$handle = curl_init();
// cURL offers really easy proxy support.
$proxy = new WP_HTTP_Proxy();
if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
curl_setopt( $handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP );
curl_setopt( $handle, CURLOPT_PROXY, $proxy->host() );
curl_setopt( $handle, CURLOPT_PROXYPORT, $proxy->port() );
if ( $proxy->use_authentication() ) {
curl_setopt( $handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY );
curl_setopt( $handle, CURLOPT_PROXYUSERPWD, $proxy->authentication() );
}
}
$is_local = isset($args['local']) && $args['local'];
$ssl_verify = isset($args['sslverify']) && $args['sslverify'];
if ( $is_local )
$ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
elseif ( ! $is_local )
$ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
// CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers. Have to use ceil since
// a value of 0 will allow an ulimited timeout.
$timeout = (int) ceil( $r['timeout'] );
curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, $timeout );
curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout );
curl_setopt( $handle, CURLOPT_URL, $url);
curl_setopt( $handle, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, ( $ssl_verify === true ) ? 2 : false );
curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify );
curl_setopt( $handle, CURLOPT_USERAGENT, $r['user-agent'] );
curl_setopt( $handle, CURLOPT_MAXREDIRS, $r['redirection'] );
switch ( $r['method'] ) {
case 'HEAD':
curl_setopt( $handle, CURLOPT_NOBODY, true );
break;
case 'POST':
curl_setopt( $handle, CURLOPT_POST, true );
curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
break;
case 'PUT':
curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, 'PUT' );
curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
break;
}
if ( true === $r['blocking'] )
curl_setopt( $handle, CURLOPT_HEADERFUNCTION, array( &$this, 'stream_headers' ) );
curl_setopt( $handle, CURLOPT_HEADER, false );
// If streaming to a file open a file handle, and setup our curl streaming handler
if ( $r['stream'] ) {
if ( ! WP_DEBUG )
$stream_handle = @fopen( $r['filename'], 'w+' );
else
$stream_handle = fopen( $r['filename'], 'w+' );
if ( ! $stream_handle )
return new WP_Error( 'http_request_failed', sprintf( __( 'Could not open handle for fopen() to %s' ), $r['filename'] ) );
curl_setopt( $handle, CURLOPT_FILE, $stream_handle );
}
// The option doesn't work with safe mode or when open_basedir is set.
if ( !ini_get('safe_mode') && !ini_get('open_basedir') && 0 !== $r['_redirection'] )
curl_setopt( $handle, CURLOPT_FOLLOWLOCATION, true );
if ( !empty( $r['headers'] ) ) {
// cURL expects full header strings in each element
$headers = array();
foreach ( $r['headers'] as $name => $value ) {
$headers[] = "{$name}: $value";
}
curl_setopt( $handle, CURLOPT_HTTPHEADER, $headers );
}
if ( $r['httpversion'] == '1.0' )
curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0 );
else
curl_setopt( $handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1 );
// Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it
// themselves... Although, it is somewhat pointless without some reference.
do_action_ref_array( 'http_api_curl', array(&$handle) );
// We don't need to return the body, so don't. Just execute request and return.
if ( ! $r['blocking'] ) {
curl_exec( $handle );
curl_close( $handle );
return array( 'headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array() );
}
$theResponse = curl_exec( $handle );
$theBody = '';
$theHeaders = WP_Http::processHeaders( $this->headers );
if ( strlen($theResponse) > 0 && ! is_bool( $theResponse ) ) // is_bool: when using $args['stream'], curl_exec will return (bool)true
$theBody = $theResponse;
// If no response, and It's not a HEAD request with valid headers returned
if ( 0 == strlen($theResponse) && ('HEAD' != $args['method'] || empty($this->headers)) ) {
if ( $curl_error = curl_error($handle) )
return new WP_Error('http_request_failed', $curl_error);
if ( in_array( curl_getinfo( $handle, CURLINFO_HTTP_CODE ), array(301, 302) ) )
return new WP_Error('http_request_failed', __('Too many redirects.'));
}
unset( $this->headers );
$response = array();
$response['code'] = curl_getinfo( $handle, CURLINFO_HTTP_CODE );
$response['message'] = get_status_header_desc($response['code']);
curl_close( $handle );
if ( $r['stream'] )
fclose( $stream_handle );
// See #11305 - When running under safe mode, redirection is disabled above. Handle it manually.
if ( ! empty( $theHeaders['headers']['location'] ) && ( ini_get( 'safe_mode' ) || ini_get( 'open_basedir' ) ) && 0 !== $r['_redirection'] ) {
if ( $r['redirection']-- > 0 ) {
return $this->request( $theHeaders['headers']['location'], $r );
} else {
return new WP_Error( 'http_request_failed', __( 'Too many redirects.' ) );
}
}
if ( true === $r['decompress'] && true === WP_Http_Encoding::should_decode($theHeaders['headers']) )
$theBody = WP_Http_Encoding::decompress( $theBody );
return array( 'headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies'], 'filename' => $r['filename'] );
}
/**
* Grab the headers of the cURL request
*
* Each header is sent individually to this callback, so we append to the $header property for temporary storage
*
* @since 3.2.0
* @access private
* @return int
*/
private function stream_headers( $handle, $headers ) {
$this->headers .= $headers;
return strlen( $headers );
}
/**
* Whether this class can be used for retrieving an URL.
*
* @static
* @since 2.7.0
*
* @return boolean False means this class can not be used, true means it can.
*/
function test( $args = array() ) {
if ( ! function_exists( 'curl_init' ) || ! function_exists( 'curl_exec' ) )
return false;
$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
if ( $is_ssl ) {
$curl_version = curl_version();
if ( ! (CURL_VERSION_SSL & $curl_version['features']) ) // Does this cURL version support SSL requests?
return false;
}
return apply_filters( 'use_curl_transport', true, $args );
}
}
/**
* Adds Proxy support to the WordPress HTTP API.
*
* There are caveats to proxy support. It requires that defines be made in the wp-config.php file to
* enable proxy support. There are also a few filters that plugins can hook into for some of the
* constants.
*
* Please note that only BASIC authentication is supported by most transports.
* cURL MAY support more methods (such as NTLM authentication) depending on your environment.
*
* The constants are as follows:
*
* - WP_PROXY_HOST - Enable proxy support and host for connecting.
* - WP_PROXY_PORT - Proxy port for connection. No default, must be defined.
* - WP_PROXY_USERNAME - Proxy username, if it requires authentication.
* - WP_PROXY_PASSWORD - Proxy password, if it requires authentication.
* - WP_PROXY_BYPASS_HOSTS - Will prevent the hosts in this list from going through the proxy.
* You do not need to have localhost and the blog host in this list, because they will not be passed
* through the proxy. The list should be presented in a comma separated list, wildcards using * are supported, eg. *.wordpress.org
*
*
* An example can be as seen below.
*
* define('WP_PROXY_HOST', '192.168.84.101');
* define('WP_PROXY_PORT', '8080');
* define('WP_PROXY_BYPASS_HOSTS', 'localhost, www.example.com, *.wordpress.org');
*
*
* @link http://core.trac.wordpress.org/ticket/4011 Proxy support ticket in WordPress.
* @link http://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_PROXY_BYPASS_HOSTS
* @since 2.8
*/
class WP_HTTP_Proxy {
/**
* Whether proxy connection should be used.
*
* @since 2.8
* @use WP_PROXY_HOST
* @use WP_PROXY_PORT
*
* @return bool
*/
function is_enabled() {
return defined('WP_PROXY_HOST') && defined('WP_PROXY_PORT');
}
/**
* Whether authentication should be used.
*
* @since 2.8
* @use WP_PROXY_USERNAME
* @use WP_PROXY_PASSWORD
*
* @return bool
*/
function use_authentication() {
return defined('WP_PROXY_USERNAME') && defined('WP_PROXY_PASSWORD');
}
/**
* Retrieve the host for the proxy server.
*
* @since 2.8
*
* @return string
*/
function host() {
if ( defined('WP_PROXY_HOST') )
return WP_PROXY_HOST;
return '';
}
/**
* Retrieve the port for the proxy server.
*
* @since 2.8
*
* @return string
*/
function port() {
if ( defined('WP_PROXY_PORT') )
return WP_PROXY_PORT;
return '';
}
/**
* Retrieve the username for proxy authentication.
*
* @since 2.8
*
* @return string
*/
function username() {
if ( defined('WP_PROXY_USERNAME') )
return WP_PROXY_USERNAME;
return '';
}
/**
* Retrieve the password for proxy authentication.
*
* @since 2.8
*
* @return string
*/
function password() {
if ( defined('WP_PROXY_PASSWORD') )
return WP_PROXY_PASSWORD;
return '';
}
/**
* Retrieve authentication string for proxy authentication.
*
* @since 2.8
*
* @return string
*/
function authentication() {
return $this->username() . ':' . $this->password();
}
/**
* Retrieve header string for proxy authentication.
*
* @since 2.8
*
* @return string
*/
function authentication_header() {
return 'Proxy-Authorization: Basic ' . base64_encode( $this->authentication() );
}
/**
* Whether URL should be sent through the proxy server.
*
* We want to keep localhost and the blog URL from being sent through the proxy server, because
* some proxies can not handle this. We also have the constant available for defining other
* hosts that won't be sent through the proxy.
*
* @uses WP_PROXY_BYPASS_HOSTS
* @since 2.8.0
*
* @param string $uri URI to check.
* @return bool True, to send through the proxy and false if, the proxy should not be used.
*/
function send_through_proxy( $uri ) {
// parse_url() only handles http, https type URLs, and will emit E_WARNING on failure.
// This will be displayed on blogs, which is not reasonable.
$check = @parse_url($uri);
// Malformed URL, can not process, but this could mean ssl, so let through anyway.
if ( $check === false )
return true;
$home = parse_url( get_option('siteurl') );
if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
return false;
if ( !defined('WP_PROXY_BYPASS_HOSTS') )
return true;
static $bypass_hosts;
static $wildcard_regex = false;
if ( null == $bypass_hosts ) {
$bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
if ( false !== strpos(WP_PROXY_BYPASS_HOSTS, '*') ) {
$wildcard_regex = array();
foreach ( $bypass_hosts as $host )
$wildcard_regex[] = str_replace('\*', '[\w.]+?', preg_quote($host, '/'));
$wildcard_regex = '/^(' . implode('|', $wildcard_regex) . ')$/i';
}
}
if ( !empty($wildcard_regex) )
return !preg_match($wildcard_regex, $check['host']);
else
return !in_array( $check['host'], $bypass_hosts );
}
}
/**
* Internal representation of a single cookie.
*
* Returned cookies are represented using this class, and when cookies are set, if they are not
* already a WP_Http_Cookie() object, then they are turned into one.
*
* @todo The WordPress convention is to use underscores instead of camelCase for function and method
* names. Need to switch to use underscores instead for the methods.
*
* @package WordPress
* @subpackage HTTP
* @since 2.8.0
*/
class WP_Http_Cookie {
/**
* Cookie name.
*
* @since 2.8.0
* @var string
*/
var $name;
/**
* Cookie value.
*
* @since 2.8.0
* @var string
*/
var $value;
/**
* When the cookie expires.
*
* @since 2.8.0
* @var string
*/
var $expires;
/**
* Cookie URL path.
*
* @since 2.8.0
* @var string
*/
var $path;
/**
* Cookie Domain.
*
* @since 2.8.0
* @var string
*/
var $domain;
/**
* Sets up this cookie object.
*
* The parameter $data should be either an associative array containing the indices names below
* or a header string detailing it.
*
* If it's an array, it should include the following elements:
*
* - Name
* - Value - should NOT be urlencoded already.
* - Expires - (optional) String or int (UNIX timestamp).
* - Path (optional)
* - Domain (optional)
*
*
* @access public
* @since 2.8.0
*
* @param string|array $data Raw cookie data.
*/
function __construct( $data ) {
if ( is_string( $data ) ) {
// Assume it's a header string direct from a previous request
$pairs = explode( ';', $data );
// Special handling for first pair; name=value. Also be careful of "=" in value
$name = trim( substr( $pairs[0], 0, strpos( $pairs[0], '=' ) ) );
$value = substr( $pairs[0], strpos( $pairs[0], '=' ) + 1 );
$this->name = $name;
$this->value = urldecode( $value );
array_shift( $pairs ); //Removes name=value from items.
// Set everything else as a property
foreach ( $pairs as $pair ) {
$pair = rtrim($pair);
if ( empty($pair) ) //Handles the cookie ending in ; which results in a empty final pair
continue;
list( $key, $val ) = strpos( $pair, '=' ) ? explode( '=', $pair ) : array( $pair, '' );
$key = strtolower( trim( $key ) );
if ( 'expires' == $key )
$val = strtotime( $val );
$this->$key = $val;
}
} else {
if ( !isset( $data['name'] ) )
return false;
// Set properties based directly on parameters
$this->name = $data['name'];
$this->value = isset( $data['value'] ) ? $data['value'] : '';
$this->path = isset( $data['path'] ) ? $data['path'] : '';
$this->domain = isset( $data['domain'] ) ? $data['domain'] : '';
if ( isset( $data['expires'] ) )
$this->expires = is_int( $data['expires'] ) ? $data['expires'] : strtotime( $data['expires'] );
else
$this->expires = null;
}
}
/**
* Confirms that it's OK to send this cookie to the URL checked against.
*
* Decision is based on RFC 2109/2965, so look there for details on validity.
*
* @access public
* @since 2.8.0
*
* @param string $url URL you intend to send this cookie to
* @return boolean TRUE if allowed, FALSE otherwise.
*/
function test( $url ) {
// Expires - if expired then nothing else matters
if ( time() > $this->expires )
return false;
// Get details on the URL we're thinking about sending to
$url = parse_url( $url );
$url['port'] = isset( $url['port'] ) ? $url['port'] : 80;
$url['path'] = isset( $url['path'] ) ? $url['path'] : '/';
// Values to use for comparison against the URL
$path = isset( $this->path ) ? $this->path : '/';
$port = isset( $this->port ) ? $this->port : 80;
$domain = isset( $this->domain ) ? strtolower( $this->domain ) : strtolower( $url['host'] );
if ( false === stripos( $domain, '.' ) )
$domain .= '.local';
// Host - very basic check that the request URL ends with the domain restriction (minus leading dot)
$domain = substr( $domain, 0, 1 ) == '.' ? substr( $domain, 1 ) : $domain;
if ( substr( $url['host'], -strlen( $domain ) ) != $domain )
return false;
// Port - supports "port-lists" in the format: "80,8000,8080"
if ( !in_array( $url['port'], explode( ',', $port) ) )
return false;
// Path - request path must start with path restriction
if ( substr( $url['path'], 0, strlen( $path ) ) != $path )
return false;
return true;
}
/**
* Convert cookie name and value back to header string.
*
* @access public
* @since 2.8.0
*
* @return string Header encoded cookie name and value.
*/
function getHeaderValue() {
if ( empty( $this->name ) || empty( $this->value ) )
return '';
return $this->name . '=' . urlencode( $this->value );
}
/**
* Retrieve cookie header for usage in the rest of the WordPress HTTP API.
*
* @access public
* @since 2.8.0
*
* @return string
*/
function getFullHeader() {
return 'Cookie: ' . $this->getHeaderValue();
}
}
/**
* Implementation for deflate and gzip transfer encodings.
*
* Includes RFC 1950, RFC 1951, and RFC 1952.
*
* @since 2.8
* @package WordPress
* @subpackage HTTP
*/
class WP_Http_Encoding {
/**
* Compress raw string using the deflate format.
*
* Supports the RFC 1951 standard.
*
* @since 2.8
*
* @param string $raw String to compress.
* @param int $level Optional, default is 9. Compression level, 9 is highest.
* @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports.
* @return string|bool False on failure.
*/
function compress( $raw, $level = 9, $supports = null ) {
return gzdeflate( $raw, $level );
}
/**
* Decompression of deflated string.
*
* Will attempt to decompress using the RFC 1950 standard, and if that fails
* then the RFC 1951 standard deflate will be attempted. Finally, the RFC
* 1952 standard gzip decode will be attempted. If all fail, then the
* original compressed string will be returned.
*
* @since 2.8
*
* @param string $compressed String to decompress.
* @param int $length The optional length of the compressed data.
* @return string|bool False on failure.
*/
function decompress( $compressed, $length = null ) {
if ( empty($compressed) )
return $compressed;
if ( false !== ( $decompressed = @gzinflate( $compressed ) ) )
return $decompressed;
if ( false !== ( $decompressed = WP_Http_Encoding::compatible_gzinflate( $compressed ) ) )
return $decompressed;
if ( false !== ( $decompressed = @gzuncompress( $compressed ) ) )
return $decompressed;
if ( function_exists('gzdecode') ) {
$decompressed = @gzdecode( $compressed );
if ( false !== $decompressed )
return $decompressed;
}
return $compressed;
}
/**
* Decompression of deflated string while staying compatible with the majority of servers.
*
* Certain Servers will return deflated data with headers which PHP's gziniflate()
* function cannot handle out of the box. The following function lifted from
* http://au2.php.net/manual/en/function.gzinflate.php#77336 will attempt to deflate
* the various return forms used.
*
* @since 2.8.1
* @link http://au2.php.net/manual/en/function.gzinflate.php#77336
*
* @param string $gzData String to decompress.
* @return string|bool False on failure.
*/
function compatible_gzinflate($gzData) {
if ( substr($gzData, 0, 3) == "\x1f\x8b\x08" ) {
$i = 10;
$flg = ord( substr($gzData, 3, 1) );
if ( $flg > 0 ) {
if ( $flg & 4 ) {
list($xlen) = unpack('v', substr($gzData, $i, 2) );
$i = $i + 2 + $xlen;
}
if ( $flg & 8 )
$i = strpos($gzData, "\0", $i) + 1;
if ( $flg & 16 )
$i = strpos($gzData, "\0", $i) + 1;
if ( $flg & 2 )
$i = $i + 2;
}
return gzinflate( substr($gzData, $i, -8) );
} else {
return false;
}
}
/**
* What encoding types to accept and their priority values.
*
* @since 2.8
*
* @return string Types of encoding to accept.
*/
function accept_encoding() {
$type = array();
if ( function_exists( 'gzinflate' ) )
$type[] = 'deflate;q=1.0';
if ( function_exists( 'gzuncompress' ) )
$type[] = 'compress;q=0.5';
if ( function_exists( 'gzdecode' ) )
$type[] = 'gzip;q=0.5';
return implode(', ', $type);
}
/**
* What enconding the content used when it was compressed to send in the headers.
*
* @since 2.8
*
* @return string Content-Encoding string to send in the header.
*/
function content_encoding() {
return 'deflate';
}
/**
* Whether the content be decoded based on the headers.
*
* @since 2.8
*
* @param array|string $headers All of the available headers.
* @return bool
*/
function should_decode($headers) {
if ( is_array( $headers ) ) {
if ( array_key_exists('content-encoding', $headers) && ! empty( $headers['content-encoding'] ) )
return true;
} else if ( is_string( $headers ) ) {
return ( stripos($headers, 'content-encoding:') !== false );
}
return false;
}
/**
* Whether decompression and compression are supported by the PHP version.
*
* Each function is tested instead of checking for the zlib extension, to
* ensure that the functions all exist in the PHP version and aren't
* disabled.
*
* @since 2.8
*
* @return bool
*/
function is_available() {
return ( function_exists('gzuncompress') || function_exists('gzdeflate') || function_exists('gzinflate') );
}
}
ub-menu\">\n";
}
/**
* @see Walker::end_lvl()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param int $depth Depth of page. Used for padding.
*/
function end_lvl(&$output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "$indent\n";
}
/**
* @see Walker::start_el()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Menu item data object.
* @param int $depth Depth of menu item. Used for padding.
* @param int $current_page Menu item ID.
* @param object $args
*/
function start_el(&$output, $item, $depth, $args) {
global $wp_query;
$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
$class_names = $value = '';
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
$classes[] = 'menu-item-' . $item->ID;
$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
$class_names = ' class="' . esc_attr( $class_names ) . '"';
$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
$id = strlen( $id ) ? ' id="' . esc_attr( $id ) . '"' : '';
$output .= $indent . '';
$attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : '';
$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : '';
$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : '';
$attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : '';
$item_output = $args->before;
$item_output .= '';
$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
$item_output .= '';
$item_output .= $args->after;
$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
}
/**
* @see Walker::end_el()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Page data object. Not used.
* @param int $depth Depth of page. Not Used.
*/
function end_el(&$output, $item, $depth) {
$output .= "\n";
}
}
/**
* Displays a navigation menu.
*
* Optional $args contents:
*
* menu - The menu that is desired. Accepts (matching in order) id, slug, name. Defaults to blank.
* menu_class - CSS class to use for the ul element which forms the menu. Defaults to 'menu'.
* menu_id - The ID that is applied to the ul element which forms the menu. Defaults to the menu slug, incremented.
* container - Whether to wrap the ul, and what to wrap it with. Defaults to 'div'.
* container_class - the class that is applied to the container. Defaults to 'menu-{menu slug}-container'.
* container_id - The ID that is applied to the container. Defaults to blank.
* fallback_cb - If the menu doesn't exists, a callback function will fire. Defaults to 'wp_page_menu'. Set to false for no fallback.
* before - Text before the link text.
* after - Text after the link text.
* link_before - Text before the link.
* link_after - Text after the link.
* echo - Whether to echo the menu or return it. Defaults to echo.
* depth - how many levels of the hierarchy are to be included. 0 means all. Defaults to 0.
* walker - allows a custom walker to be specified.
* theme_location - the location in the theme to be used. Must be registered with register_nav_menu() in order to be selectable by the user.
* items_wrap - How the list items should be wrapped. Defaults to a ul with an id and class. Uses printf() format with numbered placeholders.
*
* @since 3.0.0
*
* @param array $args Arguments
*/
function wp_nav_menu( $args = array() ) {
static $menu_id_slugs = array();
$defaults = array( 'menu' => '', 'container' => 'div', 'container_class' => '', 'container_id' => '', 'menu_class' => 'menu', 'menu_id' => '',
'echo' => true, 'fallback_cb' => 'wp_page_menu', 'before' => '', 'after' => '', 'link_before' => '', 'link_after' => '', 'items_wrap' => '',
'depth' => 0, 'walker' => '', 'theme_location' => '' );
$args = wp_parse_args( $args, $defaults );
$args = apply_filters( 'wp_nav_menu_args', $args );
$args = (object) $args;
// Get the nav menu based on the requested menu
$menu = wp_get_nav_menu_object( $args->menu );
// Get the nav menu based on the theme_location
if ( ! $menu && $args->theme_location && ( $locations = get_nav_menu_locations() ) && isset( $locations[ $args->theme_location ] ) )
$menu = wp_get_nav_menu_object( $locations[ $args->theme_location ] );
// get the first menu that has items if we still can't find a menu
if ( ! $menu && !$args->theme_location ) {
$menus = wp_get_nav_menus();
foreach ( $menus as $menu_maybe ) {
if ( $menu_items = wp_get_nav_menu_items($menu_maybe->term_id) ) {
$menu = $menu_maybe;
break;
}
}
}
// If the menu exists, get its items.
if ( $menu && ! is_wp_error($menu) && !isset($menu_items) )
$menu_items = wp_get_nav_menu_items( $menu->term_id );
// If no menu was found or if the menu has no items and no location was requested, call the fallback_cb if it exists
if ( ( !$menu || is_wp_error($menu) || ( isset($menu_items) && empty($menu_items) && !$args->theme_location ) )
&& $args->fallback_cb && is_callable( $args->fallback_cb ) )
return call_user_func( $args->fallback_cb, (array) $args );
// If no fallback function was specified and the menu doesn't exists, bail.
if ( !$menu || is_wp_error($menu) )
return false;
$nav_menu = $items = '';
$show_container = false;
if ( $args->container ) {
$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
if ( in_array( $args->container, $allowed_tags ) ) {
$show_container = true;
$class = $args->container_class ? ' class="' . esc_attr( $args->container_class ) . '"' : ' class="menu-'. $menu->slug .'-container"';
$id = $args->container_id ? ' id="' . esc_attr( $args->container_id ) . '"' : '';
$nav_menu .= '<'. $args->container . $id . $class . '>';
}
}
// Set up the $menu_item variables
_wp_menu_item_classes_by_context( $menu_items );
$sorted_menu_items = array();
foreach ( (array) $menu_items as $key => $menu_item )
$sorted_menu_items[$menu_item->menu_order] = $menu_item;
unset($menu_items);
$sorted_menu_items = apply_filters( 'wp_nav_menu_objects', $sorted_menu_items, $args );
$items .= walk_nav_menu_tree( $sorted_menu_items, $args->depth, $args );
unset($sorted_menu_items);
// Attributes
if ( ! empty( $args->menu_id ) ) {
$wrap_id = $args->menu_id;
} else {
$wrap_id = 'menu-' . $menu->slug;
while ( in_array( $wrap_id, $menu_id_slugs ) ) {
if ( preg_match( '#-(\d+)$#', $wrap_id, $matches ) )
$wrap_id = preg_replace('#-(\d+)$#', '-' . ++$matches[1], $wrap_id );
else
$wrap_id = $wrap_id . '-1';
}
}
$menu_id_slugs[] = $wrap_id;
$wrap_class = $args->menu_class ? $args->menu_class : '';
// Allow plugins to hook into the menu to add their own 's
$items = apply_filters( 'wp_nav_menu_items', $items, $args );
$items = apply_filters( "wp_nav_menu_{$menu->slug}_items", $items, $args );
$nav_menu .= sprintf( $args->items_wrap, esc_attr( $wrap_id ), esc_attr( $wrap_class ), $items );
unset( $items );
if ( $show_container )
$nav_menu .= 'container . '>';
$nav_menu = apply_filters( 'wp_nav_menu', $nav_menu, $args );
if ( $args->echo )
echo $nav_menu;
else
return $nav_menu;
}
/**
* Add the class property classes for the current context, if applicable.
*
* @access private
* @since 3.0
*
* @param array $menu_items The current menu item objects to which to add the class property information.
*/
function _wp_menu_item_classes_by_context( &$menu_items ) {
global $wp_query;
$queried_object = $wp_query->get_queried_object();
$queried_object_id = (int) $wp_query->queried_object_id;
$active_object = '';
$active_ancestor_item_ids = array();
$active_parent_item_ids = array();
$active_parent_object_ids = array();
$possible_taxonomy_ancestors = array();
$possible_object_parents = array();
$home_page_id = (int) get_option( 'page_for_posts' );
if ( $wp_query->is_singular && ! empty( $queried_object->post_type ) && ! is_post_type_hierarchical( $queried_object->post_type ) ) {
foreach ( (array) get_object_taxonomies( $queried_object->post_type ) as $taxonomy ) {
if ( is_taxonomy_hierarchical( $taxonomy ) ) {
$term_hierarchy = _get_term_hierarchy( $taxonomy );
$terms = wp_get_object_terms( $queried_object_id, $taxonomy, array( 'fields' => 'ids' ) );
if ( is_array( $terms ) ) {
$possible_object_parents = array_merge( $possible_object_parents, $terms );
$term_to_ancestor = array();
foreach ( (array) $term_hierarchy as $anc => $descs ) {
foreach ( (array) $descs as $desc )
$term_to_ancestor[ $desc ] = $anc;
}
foreach ( $terms as $desc ) {
do {
$possible_taxonomy_ancestors[ $taxonomy ][] = $desc;
if ( isset( $term_to_ancestor[ $desc ] ) ) {
$_desc = $term_to_ancestor[ $desc ];
unset( $term_to_ancestor[ $desc ] );
$desc = $_desc;
} else {
$desc = 0;
}
} while ( ! empty( $desc ) );
}
}
}
}
} elseif ( ! empty( $queried_object->post_type ) && is_post_type_hierarchical( $queried_object->post_type ) ) {
_get_post_ancestors( $queried_object );
} elseif ( ! empty( $queried_object->taxonomy ) && is_taxonomy_hierarchical( $queried_object->taxonomy ) ) {
$term_hierarchy = _get_term_hierarchy( $queried_object->taxonomy );
$term_to_ancestor = array();
foreach ( (array) $term_hierarchy as $anc => $descs ) {
foreach ( (array) $descs as $desc )
$term_to_ancestor[ $desc ] = $anc;
}
$desc = $queried_object->term_id;
do {
$possible_taxonomy_ancestors[ $queried_object->taxonomy ][] = $desc;
if ( isset( $term_to_ancestor[ $desc ] ) ) {
$_desc = $term_to_ancestor[ $desc ];
unset( $term_to_ancestor[ $desc ] );
$desc = $_desc;
} else {
$desc = 0;
}
} while ( ! empty( $desc ) );
}
$possible_object_parents = array_filter( $possible_object_parents );
$front_page_url = home_url();
foreach ( (array) $menu_items as $key => $menu_item ) {
$menu_items[$key]->current = false;
$classes = (array) $menu_item->classes;
$classes[] = 'menu-item';
$classes[] = 'menu-item-type-' . $menu_item->type;
$classes[] = 'menu-item-object-' . $menu_item->object;
// if the menu item corresponds to a taxonomy term for the currently-queried non-hierarchical post object
if ( $wp_query->is_singular && 'taxonomy' == $menu_item->type && in_array( $menu_item->object_id, $possible_object_parents ) ) {
$active_parent_object_ids[] = (int) $menu_item->object_id;
$active_parent_item_ids[] = (int) $menu_item->db_id;
$active_object = $queried_object->post_type;
// if the menu item corresponds to the currently-queried post or taxonomy object
} elseif (
$menu_item->object_id == $queried_object_id &&
(
( ! empty( $home_page_id ) && 'post_type' == $menu_item->type && $wp_query->is_home && $home_page_id == $menu_item->object_id ) ||
( 'post_type' == $menu_item->type && $wp_query->is_singular ) ||
( 'taxonomy' == $menu_item->type && ( $wp_query->is_category || $wp_query->is_tag || $wp_query->is_tax ) )
)
) {
$classes[] = 'current-menu-item';
$menu_items[$key]->current = true;
$_anc_id = (int) $menu_item->db_id;
while(
( $_anc_id = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
! in_array( $_anc_id, $active_ancestor_item_ids )
) {
$active_ancestor_item_ids[] = $_anc_id;
}
if ( 'post_type' == $menu_item->type && 'page' == $menu_item->object ) {
// Back compat classes for pages to match wp_page_menu()
$classes[] = 'page_item';
$classes[] = 'page-item-' . $menu_item->object_id;
$classes[] = 'current_page_item';
}
$active_parent_item_ids[] = (int) $menu_item->menu_item_parent;
$active_parent_object_ids[] = (int) $menu_item->post_parent;
$active_object = $menu_item->object;
// if the menu item corresponds to the currently-requested URL
} elseif ( 'custom' == $menu_item->object ) {
$current_url = untrailingslashit( ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] );
$item_url = untrailingslashit( strpos( $menu_item->url, '#' ) ? substr( $menu_item->url, 0, strpos( $menu_item->url, '#' ) ) : $menu_item->url );
$_indexless_current = untrailingslashit( preg_replace( '/index.php$/', '', $current_url ) );
if ( in_array( $item_url, array( $current_url, $_indexless_current ) ) ) {
$classes[] = 'current-menu-item';
$menu_items[$key]->current = true;
$_anc_id = (int) $menu_item->db_id;
while(
( $_anc_id = get_post_meta( $_anc_id, '_menu_item_menu_item_parent', true ) ) &&
! in_array( $_anc_id, $active_ancestor_item_ids )
) {
$active_ancestor_item_ids[] = $_anc_id;
}
if ( in_array( home_url(), array( untrailingslashit( $current_url ), untrailingslashit( $_indexless_current ) ) ) ) {
// Back compat for home link to match wp_page_menu()
$classes[] = 'current_page_item';
}
$active_parent_item_ids[] = (int) $menu_item->menu_item_parent;
$active_parent_object_ids[] = (int) $menu_item->post_parent;
$active_object = $menu_item->object;
// give front page item current-menu-item class when extra query arguments involved
} elseif ( $item_url == $front_page_url && is_front_page() ) {
$classes[] = 'current-menu-item';
}
if ( untrailingslashit($item_url) == home_url() )
$classes[] = 'menu-item-home';
}
// back-compat with wp_page_menu: add "current_page_parent" to static home page link for any non-page query
if ( ! empty( $home_page_id ) && 'post_type' == $menu_item->type && empty( $wp_query->is_page ) && $home_page_id == $menu_item->object_id )
$classes[] = 'current_page_parent';
$menu_items[$key]->classes = array_unique( $classes );
}
$active_ancestor_item_ids = array_filter( array_unique( $active_ancestor_item_ids ) );
$active_parent_item_ids = array_filter( array_unique( $active_parent_item_ids ) );
$active_parent_object_ids = array_filter( array_unique( $active_parent_object_ids ) );
// set parent's class
foreach ( (array) $menu_items as $key => $parent_item ) {
$classes = (array) $parent_item->classes;
$menu_items[$key]->current_item_ancestor = false;
$menu_items[$key]->current_item_parent = false;
if (
isset( $parent_item->type ) &&
(
// ancestral post object
(
'post_type' == $parent_item->type &&
! empty( $queried_object->post_type ) &&
is_post_type_hierarchical( $queried_object->post_type ) &&
in_array( $parent_item->object_id, $queried_object->ancestors ) &&
$parent_item->object != $queried_object->ID
) ||
// ancestral term
(
'taxonomy' == $parent_item->type &&
isset( $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
in_array( $parent_item->object_id, $possible_taxonomy_ancestors[ $parent_item->object ] ) &&
(
! isset( $queried_object->term_id ) ||
$parent_item->object_id != $queried_object->term_id
)
)
)
) {
$classes[] = empty( $queried_object->taxonomy ) ? 'current-' . $queried_object->post_type . '-ancestor' : 'current-' . $queried_object->taxonomy . '-ancestor';
}
if ( in_array( intval( $parent_item->db_id ), $active_ancestor_item_ids ) ) {
$classes[] = 'current-menu-ancestor';
$menu_items[$key]->current_item_ancestor = true;
}
if ( in_array( $parent_item->db_id, $active_parent_item_ids ) ) {
$classes[] = 'current-menu-parent';
$menu_items[$key]->current_item_parent = true;
}
if ( in_array( $parent_item->object_id, $active_parent_object_ids ) )
$classes[] = 'current-' . $active_object . '-parent';
if ( 'post_type' == $parent_item->type && 'page' == $parent_item->object ) {
// Back compat classes for pages to match wp_page_menu()
if ( in_array('current-menu-parent', $classes) )
$classes[] = 'current_page_parent';
if ( in_array('current-menu-ancestor', $classes) )
$classes[] = 'current_page_ancestor';
}
$menu_items[$key]->classes = array_unique( $classes );
}
}
/**
* Retrieve the HTML list content for nav menu items.
*
* @uses Walker_Nav_Menu to create HTML list content.
* @since 3.0.0
* @see Walker::walk() for parameters and return description.
*/
function walk_nav_menu_tree( $items, $depth, $r ) {
$walker = ( empty($r->walker) ) ? new Walker_Nav_Menu : $r->walker;
$args = array( $items, $depth, $r );
return call_user_func_array( array(&$walker, 'walk'), $args );
}
/**
* Prevents a menu item ID from being used more than once.
*
* @since 3.0.1
* @access private
*/
function _nav_menu_item_id_use_once( $id, $item ) {
static $_used_ids = array();
if ( in_array( $item->ID, $_used_ids ) )
return '';
$_used_ids[] = $item->ID;
return $id;
}
add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );
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