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

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2018-03-21 18:19:20 +00:00
<?php
class WPCOM_JSON_API_List_Media_v1_1_Endpoint extends WPCOM_JSON_API_Endpoint {
public $date_range = array();
public $page_handle = array();
function callback( $path = '', $blog_id = 0 ) {
$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
if ( is_wp_error( $blog_id ) ) {
return $blog_id;
}
//upload_files can probably be used for other endpoints but we want contributors to be able to use media too
if ( ! current_user_can( 'edit_posts' ) ) {
return new WP_Error( 'unauthorized', 'User cannot view media', 403 );
}
$args = $this->query_args();
$is_eligible_for_page_handle = true;
if ( $args['number'] < 1 ) {
$args['number'] = 20;
} elseif ( 100 < $args['number'] ) {
return new WP_Error( 'invalid_number', 'The NUMBER parameter must be less than or equal to 100.', 400 );
}
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
$this->load_theme_functions();
}
if ( isset( $args['before'] ) ) {
$this->date_range['before'] = $args['before'];
}
if ( isset( $args['after'] ) ) {
$this->date_range['after'] = $args['after'];
}
$query = array(
'post_type' => 'attachment',
'post_status' => 'inherit',
'post_parent' => isset( $args['post_ID'] ) ? $args['post_ID'] : null,
'offset' => isset( $args['offset'] ) ? $args['offset'] : null,
'posts_per_page' => $args['number'],
'post_mime_type' => isset( $args['mime_type'] ) ? $args['mime_type'] : null,
'order' => isset( $args['order'] ) ? $args['order'] : 'DESC',
'orderby' => isset( $args['order_by'] ) ? $args['order_by'] : 'date',
's' => isset( $args['search'] ) ? $args['search'] : null,
);
if ( isset( $args['page'] ) ) {
if ( $args['page'] < 1 ) {
$args['page'] = 1;
}
$query['paged'] = $args['page'];
if ( $query['paged'] !== 1 ) {
$is_eligible_for_page_handle = false;
}
} else {
if ( $args['offset'] < 0 ) {
$args['offset'] = 0;
}
$query['offset'] = $args['offset'];
if ( $query['offset'] !== 0 ) {
$is_eligible_for_page_handle = false;
}
}
if ( isset( $args['page_handle'] ) ) {
$page_handle = wp_parse_args( $args['page_handle'] );
if ( isset( $page_handle['value'] ) && isset( $page_handle['id'] ) ) {
// we have a valid looking page handle
$this->page_handle = $page_handle;
add_filter( 'posts_where', array( $this, 'handle_where_for_page_handle' ) );
}
}
if ( $this->date_range ) {
add_filter( 'posts_where', array( $this, 'handle_date_range' ) );
}
$this->performed_query = $query;
add_filter( 'posts_orderby', array( $this, 'handle_orderby_for_page_handle' ) );
$media = new WP_Query( $query );
remove_filter( 'posts_orderby', array( $this, 'handle_orderby_for_page_handle' ) );
if ( $this->date_range ) {
remove_filter( 'posts_where', array( $this, 'handle_date_range' ) );
$this->date_range = array();
}
if ( $this->page_handle ) {
remove_filter( 'posts_where', array( $this, 'handle_where_for_page_handle' ) );
}
$response = array();
foreach ( $media->posts as $item ) {
$response[] = $this->get_media_item_v1_1( $item->ID );
}
$return = array(
'found' => (int) $media->found_posts,
'media' => $response
);
if ( $is_eligible_for_page_handle && $return['media'] ) {
$last_post = end( $return['media'] );
reset( $return['media'] );
if ( ( $return['found'] > count( $return['media'] ) ) && $last_post ) {
$return['meta'] = array();
$return['meta']['next_page'] = $this->build_page_handle( $last_post, $query );
}
}
return $return;
}
function build_page_handle( $post, $query ) {
$column = $query['orderby'];
if ( ! $column ) {
$column = 'date';
}
return build_query( array( 'value' => urlencode( $post->$column ), 'id' => $post->ID ) );
}
function handle_where_for_page_handle( $where ) {
global $wpdb;
$column = $this->performed_query['orderby'];
if ( ! $column ) {
$column = 'date';
}
$order = $this->performed_query['order'];
if ( ! $order ) {
$order = 'DESC';
}
if ( ! in_array( $column, array( 'ID', 'title', 'date', 'modified', 'comment_count' ) ) ) {
return $where;
}
if ( ! in_array( $order, array( 'DESC', 'ASC' ) ) ) {
return $where;
}
$db_column = '';
$db_value = '';
switch( $column ) {
case 'ID':
$db_column = 'ID';
$db_value = '%d';
break;
case 'title':
$db_column = 'post_title';
$db_value = '%s';
break;
case 'date':
$db_column = 'post_date';
$db_value = 'CAST( %s as DATETIME )';
break;
case 'modified':
$db_column = 'post_modified';
$db_value = 'CAST( %s as DATETIME )';
break;
case 'comment_count':
$db_column = 'comment_count';
$db_value = '%d';
break;
}
if ( 'DESC'=== $order ) {
$db_order = '<';
} else {
$db_order = '>';
}
// Add a clause that limits the results to items beyond the passed item, or equivalent to the passed item
// but with an ID beyond the passed item. When we're ordering by the ID already, we only ask for items
// beyond the passed item.
$where .= $wpdb->prepare( " AND ( ( `$wpdb->posts`.`$db_column` $db_order $db_value ) ", $this->page_handle['value'] );
if ( $db_column !== 'ID' ) {
$where .= $wpdb->prepare( "OR ( `$wpdb->posts`.`$db_column` = $db_value AND `$wpdb->posts`.ID $db_order %d )", $this->page_handle['value'], $this->page_handle['id'] );
}
$where .= ' )';
return $where;
}
function handle_date_range( $where ) {
global $wpdb;
switch ( count( $this->date_range ) ) {
case 2 :
$where .= $wpdb->prepare(
" AND `$wpdb->posts`.post_date BETWEEN CAST( %s AS DATETIME ) AND CAST( %s AS DATETIME ) ",
$this->date_range['after'],
$this->date_range['before']
);
break;
case 1 :
if ( isset( $this->date_range['before'] ) ) {
$where .= $wpdb->prepare(
" AND `$wpdb->posts`.post_date <= CAST( %s AS DATETIME ) ",
$this->date_range['before']
);
} else {
$where .= $wpdb->prepare(
" AND `$wpdb->posts`.post_date >= CAST( %s AS DATETIME ) ",
$this->date_range['after']
);
}
break;
}
return $where;
}
function handle_orderby_for_page_handle( $orderby ) {
global $wpdb;
if ( $this->performed_query['orderby'] === 'ID' ) {
// bail if we're already ordering by ID
return $orderby;
}
if ( $orderby ) {
$orderby .= ' ,';
}
$order = $this->performed_query['order'];
if ( ! $order ) {
$order = 'DESC';
}
$orderby .= " `$wpdb->posts`.ID $order";
return $orderby;
}
}