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Omphaloskepsis/plugins/jetpack/json-endpoints/class.wpcom-json-api-menus-v1-1-endpoint.php

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2018-03-21 18:19:20 +00:00
<?php
abstract class WPCOM_JSON_API_Menus_Abstract_Endpoint extends WPCOM_JSON_API_Endpoint {
protected function switch_to_blog_and_validate_user( $site ) {
$site_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
if ( ! current_user_can( 'edit_theme_options' ) ) {
return new WP_Error( 'unauthorised', 'User cannot edit theme options on this site.', 403 );
}
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
$this->load_theme_functions();
}
return $site_id;
}
protected function get_locations() {
$locations = array();
$menus = get_registered_nav_menus();
if ( !empty( $menus ) ) {
foreach( $menus as $name => $description ) {
$locations[] = array( 'name' => $name, 'description' => $description );
}
}
$locations = array_merge( $locations, WPCOM_JSON_API_Menus_Widgets::get() );
// Primary (first) location should have defaultState -> default,
// all other locations (including widgets) should have defaultState -> empty.
for ( $i = 0; $i < count( $locations ); $i++ ) {
$locations[ $i ]['defaultState'] = $i ? 'empty' : 'default';
}
return $locations;
}
protected function simplify( $data ) {
$simplifier = new WPCOM_JSON_API_Menus_Simplifier( $data );
return $simplifier->translate();
}
protected function complexify( $data ) {
$complexifier = new WPCOM_JSON_API_Menus_Complexify( $data );
return $complexifier->translate();
}
}
abstract class WPCOM_JSON_API_Menus_Translator {
protected $filter = '';
protected $filters = array();
public function __construct( $menus ) {
$this->is_single_menu = ! is_array( $menus );
$this->menus = is_array( $menus ) ? $menus : array( $menus );
}
public function translate() {
$result = $this->menus;
foreach ( $this->filters as $f ) {
$result = call_user_func( array( $this, $f ), $result );
if ( is_wp_error($result ) ) {
return $result;
}
}
return $this->maybe_extract( $result );
}
protected function maybe_extract( $menus ) {
return $this->is_single_menu ? $menus[0] : $menus;
}
public function whitelist_and_rename_with( $object, $dict ) {
$keys = array_keys( $dict );
$return = array();
foreach ( (array) $object as $k => $v ) {
if ( in_array( $k, $keys ) ) {
if ( is_array( $dict[ $k ] ) ) {
settype( $v, $dict[ $k ]['type'] );
$return[ $dict[ $k ]['name'] ] = $v;
} else {
$new_k = $dict[ $k ];
$return[ $new_k ] = $v;
}
}
}
return $return;
}
}
class WPCOM_JSON_API_Menus_Simplifier extends WPCOM_JSON_API_Menus_Translator {
protected $filter = 'wpcom_menu_api_translator_simplify';
protected $filters = array(
'whitelist_and_rename_keys',
'add_locations',
'treeify',
'add_widget_locations',
);
protected $menu_whitelist = array(
'term_id' => array( 'name' => 'id', 'type' => 'int' ),
'name' => array( 'name' => 'name', 'type' => 'string' ),
'description' => array( 'name' => 'description', 'type' => 'string' ),
'items' => array( 'name' => 'items', 'type' => 'array' ),
);
protected $menu_item_whitelist = array(
'db_id' => array( 'name' => 'id', 'type' => 'int' ),
'object_id' => array( 'name' => 'content_id', 'type' => 'int' ),
'object' => array( 'name' => 'type', 'type' => 'string' ),
'type' => array( 'name' => 'type_family', 'type' => 'string' ),
'type_label' => array( 'name' => 'type_label', 'type' => 'string' ),
'title' => array( 'name' => 'name', 'type' => 'string' ),
'menu_order' => array( 'name' => 'order', 'type' => 'int' ),
'menu_item_parent' => array( 'name' => 'parent', 'type' => 'int' ),
'url' => array( 'name' => 'url', 'type' => 'string' ),
'target' => array( 'name' => 'link_target', 'type' => 'string' ),
'attr_title' => array( 'name' => 'link_title', 'type' => 'string' ),
'description' => array( 'name' => 'description', 'type' => 'string' ),
'classes' => array( 'name' => 'classes', 'type' => 'array' ),
'xfn' => array( 'name' => 'xfn', 'type' => 'string' ),
);
/**************************
* Filters methods
**************************/
public function treeify( $menus ) {
return array_map( array( $this, 'treeify_menu' ), $menus );
}
// turn the flat item list into a tree of items
protected function treeify_menu( $menu ) {
$indexed_nodes = array();
$tree = array();
foreach( $menu['items'] as &$item ) {
$indexed_nodes[ $item['id'] ] = &$item;
}
foreach( $menu['items'] as &$item ) {
if ( $item['parent'] && isset( $indexed_nodes[ $item['parent'] ] ) ) {
$parent_node = &$indexed_nodes[ $item['parent'] ];
if ( !isset( $parent_node['items'] ) ) {
$parent_node['items'] = array();
}
$parent_node['items'][ $item['order'] ] = &$item;
} else {
$tree[ $item['order'] ] = &$item;
}
unset( $item['order'] );
unset( $item['parent'] );
}
$menu['items'] = $tree;
$this->remove_item_keys( $menu );
return $menu;
}
// recursively ensure item lists are contiguous
protected function remove_item_keys( &$item ) {
if ( ! isset( $item['items'] ) || ! is_array( $item['items'] ) ) {
return;
}
foreach( $item['items'] as &$it ) {
$this->remove_item_keys( $it );
}
$item['items'] = array_values( $item['items'] );
}
protected function whitelist_and_rename_keys( $menus ) {
$transformed_menus = array();
foreach ( $menus as $menu ) {
$menu = $this->whitelist_and_rename_with( $menu, $this->menu_whitelist );
if ( isset( $menu['items'] ) ) {
foreach ( $menu['items'] as &$item ) {
$item = $this->whitelist_and_rename_with( $item, $this->menu_item_whitelist );
}
}
$transformed_menus[] = $menu;
}
return $transformed_menus;
}
protected function add_locations( $menus ) {
$menus_with_locations = array();
foreach( $menus as $menu ) {
$menu['locations'] = array_keys( get_nav_menu_locations(), $menu['id'] );
$menus_with_locations[] = $menu;
}
return $menus_with_locations;
}
protected function add_widget_locations( $menus ) {
$nav_menu_widgets = WPCOM_JSON_API_Menus_Widgets::get();
if ( ! is_array( $nav_menu_widgets ) ) {
return $menus;
}
foreach ( $menus as &$menu ) {
$widget_locations = array();
foreach ( $nav_menu_widgets as $key => $widget ) {
if ( is_array( $widget ) && isset( $widget['nav_menu'] ) &&
$widget['nav_menu'] === $menu['id'] ) {
$widget_locations[] = 'nav_menu_widget-' . $key;
}
}
$menu['locations'] = array_merge( $menu['locations'], $widget_locations );
}
return $menus;
}
}
class WPCOM_JSON_API_Menus_Complexify extends WPCOM_JSON_API_Menus_Translator {
protected $filter = 'wpcom_menu_api_translator_complexify';
protected $filters = array(
'untreeify',
'set_locations',
'whitelist_and_rename_keys',
);
protected $menu_whitelist = array(
'id' => 'term_id',
'name' => 'menu-name',
'description' => 'description',
'items' => 'items',
);
protected $menu_item_whitelist = array(
'id' => 'menu-item-db-id',
'content_id' => 'menu-item-object-id',
'type' => 'menu-item-object',
'type_family' => 'menu-item-type',
'type_label' => 'menu-item-type-label',
'name' => 'menu-item-title',
'order' => 'menu-item-position',
'parent' => 'menu-item-parent-id',
'url' => 'menu-item-url',
'link_target' => 'menu-item-target',
'link_title' => 'menu-item-attr-title',
'status' => 'menu-item-status',
'tmp_id' => 'tmp_id',
'tmp_parent' => 'tmp_parent',
'description' => 'menu-item-description',
'classes' => 'menu-item-classes',
'xfn' => 'menu-item-xfn',
);
/**************************
* Filters methods
**************************/
public function untreeify( $menus ) {
return array_map( array( $this, 'untreeify_menu' ), $menus );
}
// convert the tree of menu items to a flat list suitable for
// the nav_menu APIs
protected function untreeify_menu( $menu ) {
if ( empty( $menu['items'] ) ) {
return $menu;
}
$items_list = array();
$counter = 1;
foreach ( $menu['items'] as &$item ) {
$item[ 'parent' ] = 0;
}
$this->untreeify_items( $menu['items'], $items_list, $counter );
$menu['items'] = $items_list;
return $menu;
}
/**
* Recurse the items tree adding each item to a flat list and restoring
* `order` and `parent` fields.
*
* @param array $items item tree
* @param array &$items_list output flat list of items
* @param int &$counter for creating temporary IDs
*/
protected function untreeify_items( $items, &$items_list, &$counter ) {
foreach( $items as $index => $item ) {
$item['order'] = $index + 1;
if( ! isset( $item['id'] ) ) {
$this->set_tmp_id( $item, $counter++ );
}
if ( isset( $item['items'] ) && is_array( $item['items'] ) ) {
foreach ( $item['items'] as &$i ) {
$i['parent'] = $item['id'];
}
$this->untreeify_items( $item[ 'items' ], $items_list, $counter );
unset( $item['items'] );
}
$items_list[] = $item;
}
}
/**
* Populate `tmp_id` field for a new item, and `tmp_parent` field
* for all its children, to maintain the hierarchy.
* These fields will be used when creating
* new items with wp_update_nav_menu_item().
*/
private function set_tmp_id( &$item, $tmp_id ) {
$item['tmp_id'] = $tmp_id;
if ( ! isset( $item['items'] ) || ! is_array( $item['items'] ) ) {
return;
}
foreach ( $item['items'] as &$child ) {
$child['tmp_parent'] = $tmp_id;
}
}
protected function whitelist_and_rename_keys( $menus ) {
$transformed_menus = array();
foreach ( $menus as $menu ) {
$menu = $this->whitelist_and_rename_with( $menu, $this->menu_whitelist );
if ( isset( $menu['items'] ) ) {
$menu['items'] = array_map( array( $this, 'whitelist_and_rename_item_keys' ), $menu['items'] );
}
$transformed_menus[] = $menu;
}
return $transformed_menus;
}
protected function whitelist_and_rename_item_keys( $item ) {
$item = $this->implode_array_fields( $item );
$item = $this->whitelist_and_rename_with( $item, $this->menu_item_whitelist );
return $item;
}
// all item fields are set as strings
protected function implode_array_fields( $menu_item ) {
return array_map( array( $this, 'implode_array_field' ), $menu_item );
}
protected function implode_array_field( $field ) {
if ( is_array( $field ) ) {
return implode( ' ', $field );
}
return $field;
}
protected function set_locations( $menus ) {
foreach ( $menus as $menu ) {
if ( isset( $menu['locations'] ) ) {
if ( true !== $this->locations_are_valid( $menu['locations'] ) ) {
return $this->locations_are_valid( $menu['locations'] );
}
}
}
return array_map( array( $this, 'set_location' ), $menus );
}
protected function set_location( $menu ) {
$this->set_menu_at_locations( $menu['locations'], $menu['id'] );
return $menu;
}
protected function set_menu_at_locations( $locations, $menu_id ) {
$location_map = get_nav_menu_locations();
$this->remove_menu_from_all_locations( $menu_id, $location_map );
if ( is_array( $locations ) ) {
foreach ( $locations as $location ) {
$location_map[ $location ] = $menu_id;
}
}
set_theme_mod( 'nav_menu_locations', $location_map );
$this->set_widget_menu_at_locations( $locations, $menu_id );
}
protected function remove_menu_from_all_locations( $menu_id, &$location_map ) {
foreach ( get_nav_menu_locations() as $existing_location => $existing_menu_id) {
if ( $existing_menu_id == $menu_id ) {
unset( $location_map[$existing_location] );
}
}
}
protected function set_widget_menu_at_locations( $locations, $menu_id ) {
$nav_menu_widgets = get_option( 'widget_nav_menu' );
if ( ! is_array( $nav_menu_widgets ) ) {
return;
}
// Remove menus from all custom menu widget locations
foreach ( $nav_menu_widgets as &$widget ) {
if ( is_array( $widget ) && $widget['nav_menu'] == $menu_id ) {
$widget['nav_menu'] = 0;
}
}
if ( is_array( $locations ) ) {
foreach ( $locations as $location ) {
if ( preg_match( '/^nav_menu_widget-(\d+)/', $location, $matches ) ) {
if ( isset( $matches[1] ) ) {
$nav_menu_widgets[$matches[1]]['nav_menu'] = $menu_id;
}
}
}
}
update_option( 'widget_nav_menu', $nav_menu_widgets );
}
protected function locations_are_valid( $locations ) {
if ( is_int( $locations ) ) {
if ( $locations != 0) {
return new WP_Error( 'locations-int', 'Locations int must be 0.', 400 );
} else {
return true;
}
} elseif ( is_array( $locations ) ) {
foreach ( $locations as $location_name ) {
if ( ! $this->location_name_exists( $location_name ) ) {
return new WP_Error( 'locations-array',
sprintf( "Location '%s' does not exist.", $location_name ), 404 );
}
}
return true;
}
return new WP_Error( 'locations', 'Locations must be array or integer.', 400 );
}
protected function location_name_exists( $location_name ) {
$widget_location_names = wp_list_pluck( WPCOM_JSON_API_Menus_Widgets::get(), 'name' );
if ( ! is_array( get_registered_nav_menus() ) ) {
return false;
}
return array_key_exists( $location_name, get_registered_nav_menus() ) ||
in_array( $location_name, $widget_location_names );
}
}
class WPCOM_JSON_API_Menus_New_Menu_Endpoint extends WPCOM_JSON_API_Menus_Abstract_Endpoint {
function callback( $path = '', $site = 0 ) {
$site_id = $this->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
$data = $this->input();
$id = wp_create_nav_menu( $data['name'] );
if ( is_wp_error( $id ) ) {
return $id;
}
return array( 'id' => $id );
}
}
class WPCOM_JSON_API_Menus_Update_Menu_Endpoint extends WPCOM_JSON_API_Menus_Abstract_Endpoint {
function callback( $path = '', $site = 0, $menu_id = 0 ) {
$site_id = $this->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
if ( $menu_id <= 0 ) {
return new WP_Error( 'menu-id', 'Menu ID must be greater than 0.', 400 );
}
$data = $this->input( true, false );
$data['id'] = $menu_id;
$data = $this->complexify( array( $data ) );
if ( is_wp_error( $data ) ) {
return $data;
}
$data = $data[0];
// Avoid special-case handling of an unset 'items' field in empty menus
$data['items'] = isset( $data['items'] ) ? $data['items'] : array();
$data = $this->create_new_items( $data, $menu_id );
$result = wp_update_nav_menu_object( $menu_id, array( 'menu-name' => $data['menu-name'] ) );
if ( is_wp_error( $result ) ) {
return $result;
}
$delete_status = $this->delete_items_not_present( $menu_id, $data['items'] );
if( is_wp_error( $delete_status ) ) {
return $delete_status;
}
foreach ( $data['items'] as $item ) {
$item_id = isset( $item['menu-item-db-id'] ) ? $item['menu-item-db-id'] : 0;
$result = wp_update_nav_menu_item( $menu_id, $item_id, $item );
if ( is_wp_error( $result ) ) {
return $result;
}
}
$items = wp_get_nav_menu_items( $menu_id, array( 'update_post_term_cache' => false ) );
if ( is_wp_error( $items ) ) {
return $items;
}
$menu = wp_get_nav_menu_object( $menu_id );
$menu->items = $items;
return array( 'menu' => $this->simplify( $menu ) );
}
/**
* New items can have a 'tmp_id', allowing them to
* be used as parent items before they have been created.
*
* This function will create items that have a 'tmp_id' set, and
* update any items with a 'tmp_parent' to use the
* newly created item as a parent.
*/
function create_new_items( $data, $menu_id ) {
$tmp_to_actual_ids = array();
foreach ( $data['items'] as &$item ) {
if ( isset( $item['tmp_id'] ) ) {
$actual_id = wp_update_nav_menu_item( $menu_id, 0, $item );
$tmp_to_actual_ids[ $item['tmp_id'] ] = $actual_id;
unset( $item['tmp_id'] );
$item['menu-item-db-id'] = $actual_id;
}
}
foreach ( $data['items'] as &$item ) {
if ( isset( $item['tmp_parent'] ) ) {
$item['menu-item-parent-id'] = $tmp_to_actual_ids[ $item['tmp_parent'] ];
unset( $item['tmp_parent'] );
}
}
return $data;
}
/**
* remove any existing menu items not present in the supplied array.
* returns wp_error if an item cannot be deleted.
*/
function delete_items_not_present( $menu_id, $menu_items ) {
$existing_items = wp_get_nav_menu_items( $menu_id, array( 'update_post_term_cache' => false ) );
if ( ! is_array( $existing_items ) ) {
return true;
}
$existing_ids = wp_list_pluck( $existing_items, 'db_id' );
$ids_to_keep = wp_list_pluck( $menu_items, 'menu-item-db-id' );
$ids_to_remove = array_diff( $existing_ids, $ids_to_keep );
foreach ( $ids_to_remove as $id ) {
if ( false === wp_delete_post( $id, true ) ) {
return new WP_Error( 'menu-item',
sprintf( 'Failed to delete menu item with id: %d.', $id ), 400 );
}
}
return true;
}
}
class WPCOM_JSON_API_Menus_List_Menus_Endpoint extends WPCOM_JSON_API_Menus_Abstract_Endpoint {
function callback( $path = '', $site = 0 ) {
$site_id = $this->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
$menus = wp_get_nav_menus( array( 'orderby' => 'term_id' ) );
if ( is_wp_error( $menus ) ) {
return $menus;
}
foreach ( $menus as $m ) {
$items = wp_get_nav_menu_items( $m->term_id, array( 'update_post_term_cache' => false ) );
if ( is_wp_error( $items ) ) {
return $items;
}
$m->items = $items;
}
$menus = $this->simplify( $menus );
if ( is_wp_error( $this->get_locations() ) ) {
return $this->get_locations();
}
return array( 'menus' => $menus, 'locations' => $this->get_locations() );
}
}
class WPCOM_JSON_API_Menus_Get_Menu_Endpoint extends WPCOM_JSON_API_Menus_Abstract_Endpoint {
function callback( $path = '', $site = 0, $menu_id = 0 ) {
$site_id = $this->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
if ( $menu_id <= 0 ) {
return new WP_Error( 'menu-id', 'Menu ID must be greater than 0.', 400 );
}
$menu = get_term( $menu_id, 'nav_menu' );
if ( is_wp_error( $menu ) ) {
return $menu;
}
$items = wp_get_nav_menu_items( $menu_id, array( 'update_post_term_cache' => false ) );
if ( is_wp_error( $items ) ) {
return $items;
}
$menu->items = $items;
return array( 'menu' => $this->simplify( $menu ) );
}
}
class WPCOM_JSON_API_Menus_Delete_Menu_Endpoint extends WPCOM_JSON_API_Menus_Abstract_Endpoint {
function callback( $path = '', $site = 0, $menu_id = 0 ) {
$site_id = $this->switch_to_blog_and_validate_user( $this->api->get_blog_id( $site ) );
if ( is_wp_error( $site_id ) ) {
return $site_id;
}
if ( $menu_id <= 0 ) {
return new WP_Error( 'menu-id', 'Menu ID must be greater than 0.', 400 );
}
$result = wp_delete_nav_menu( $menu_id );
if ( ! is_wp_error( $result ) ) {
$result = array( 'deleted' => $result );
}
return $result;
}
}
class WPCOM_JSON_API_Menus_Widgets {
static function get() {
$locations = array();
$nav_menu_widgets = get_option( 'widget_nav_menu' );
if ( ! is_array( $nav_menu_widgets ) ) {
return $locations;
}
foreach ( $nav_menu_widgets as $k => $v ) {
if ( is_array( $v ) && isset( $v['title'] ) ) {
$locations[$k] = array( 'name' => 'nav_menu_widget-' . $k, 'description' => $v['title'] );
}
}
return $locations;
}
}