<?php
// exit if accessed directly
if ( ! defined( 'ABSPATH' ) )
exit;
/**
* Responsive Lightbox Remote Library class.
*
* @class Responsive_Lightbox_Remote_Library
*/
class Responsive_Lightbox_Remote_Library {
public $providers = [];
/**
* Class constructor.
*
* @return void
*/
public function __construct() {
// is remote library active?
if ( ! Responsive_Lightbox()->options['remote_library']['active'] )
return;
// actions
add_action( 'wp_ajax_rl_remote_library_query', [ $this, 'ajax_query_media' ] );
add_action( 'wp_ajax_rl_upload_image', [ $this, 'ajax_upload_image' ] );
add_action( 'admin_enqueue_scripts', [ $this, 'remote_library_scripts' ] );
// add filter to send new data to editor
add_filter( 'image_send_to_editor', [ $this, 'send_image_to_editor' ], 21, 8 );
}
/**
* Hidden field with response data for gallery preview.
*
* @param array $args Field arguments
* @return string
*/
public function remote_library_response_data( $args ) {
// access main instance
$rl = Responsive_Lightbox();
// get active providers
$providers = $this->get_active_providers();
$html = '';
// any providers?
if ( ! empty( $providers ) ) {
foreach ( $providers as $provider ) {
// get provider
$provider = $rl->providers[$provider];
// add response data arguments if needed
if ( ! empty( $provider['response_args'] ) ) {
$response = $provider['instance']->get_response_data();
foreach ( $provider['response_args'] as $arg ) {
if ( array_key_exists( $arg, $response ) ) {
$html .= '<span id="' . esc_attr( 'rl_' . $args['tab_id'] . '_' . $args['menu_item'] . '_' . $args['field'] . '_' . $provider['slug'] . '_' . $arg ) . '" class="rl-response-data" data-value="' . esc_attr( base64_encode( json_encode( $response[$arg] ) ) ) . '" data-name="' . esc_attr( $arg ) . '" data-provider="' . esc_attr( $provider['slug'] ) . '"></span>';
}
}
}
}
}
return $html;
}
/**
* Send updated image data to editor.
*
* @param string $html The image HTML markup to send
* @param int $id The attachment ID
* @param string $caption The image caption
* @param string $title The image title
* @param string $align The image alignment
* @param string $url The image source URL
* @param string|array $size Size of image
* @param string $alt The image alternative text.
* @return string
*/
function send_image_to_editor( $html, $id, $caption, $title, $align, $url, $size, $alt ) {
if ( $id === Responsive_Lightbox()->galleries->maybe_generate_thumbnail() && isset( $_POST['attachment'] ) && is_array( $_POST['attachment'] ) ) {
$attachment = wp_unslash( $_POST['attachment'] );
if ( isset( $attachment['remote_library_image'], $attachment['width'], $attachment['height'] ) ) {
$html = preg_replace( '/src=(\'|")(.*?)(\'|")/', 'src="' . ( ! empty( $attachment['rl_url'] ) ? esc_url( $attachment['rl_url'] ) : $url ) . '"', $html );
$html = preg_replace( '/width=(\'|")(.*?)(\'|")/', 'width="' . (int) $attachment['width'] . '"', $html );
$html = preg_replace( '/height=(\'|")(.*?)(\'|")/', 'height="' . (int) $attachment['height'] . '"', $html );
$html = preg_replace( '/(\s)?id="attachment_' . (int) $id . '"/', '', $html );
$html = preg_replace( '/(\s)?wp-image-' . (int) $id . '/', '', $html );
}
}
return $html;
}
/**
* Get all available providers.
*
* @return array
*/
public function get_providers() {
return apply_filters( 'rl_get_providers', Responsive_Lightbox()->providers );
}
/**
* Get all active providers.
*
* @return array
*/
public function get_active_providers() {
$providers = $this->get_providers();
$active_providers = [];
foreach ( $providers as $provider => $data ) {
if ( Responsive_Lightbox()->options['remote_library'][$provider]['active'] )
$active_providers[] = $provider;
}
return apply_filters( 'rl_get_active_providers', $active_providers );
}
/**
* Check whether provider is active.
*
* @param string $provider Media provider
* @return bool
*/
public function is_active_provider( $provider ) {
$providers = $this->get_providers();
$rl = Responsive_Lightbox();
return (bool) apply_filters( 'rl_is_active_provider', array_key_exists( $provider, $rl->options['remote_library'] ) && $rl->options['remote_library'][$provider]['active'], $provider );
}
/**
* Scripts and styles for media frame.
*
* @global string $wp_version
* @global string $pagenow
*
* @return void
*/
public function remote_library_scripts() {
global $wp_version;
global $pagenow;
// display only for post edit pages
if ( ! ( ( $pagenow === 'post.php' || $pagenow === 'post-new.php' ) || ( version_compare( $wp_version, '5.8', '>=' ) && ( $pagenow === 'widgets.php' || $pagenow === 'customize.php' ) ) ) )
return;
// get main instance
$rl = Responsive_Lightbox();
wp_enqueue_script( 'rl-remote-library-media', RESPONSIVE_LIGHTBOX_URL . '/js/admin-media.js', [ 'jquery', 'media-models', 'underscore' ], $rl->defaults['version'] );
wp_localize_script(
'rl-remote-library-media',
'rlRemoteLibraryMedia',
[
'thumbnailID' => $rl->galleries->maybe_generate_thumbnail(),
'postID' => get_the_ID(),
'providers' => $this->get_providers(),
'providersActive' => $this->get_active_providers(),
'allProviders' => __( 'All providers', 'responsive-lightbox' ),
'uploadAndInsert' => __( 'Upload and Insert', 'responsive-lightbox' ),
'uploadAndSelect' => __( 'Upload and Select', 'responsive-lightbox' ),
'filterByremoteLibrary' => __( 'Filter by remote library', 'responsive-lightbox' ),
'getUploadNonce' => wp_create_nonce( 'rl-remote-library-upload-image' )
]
);
// enqueue gallery
$rl->galleries->enqueue_gallery_scripts_styles();
}
/**
* AJAX media query action.
*
* @return void
*/
public function ajax_query_media() {
$data = stripslashes_deep( $_POST );
$results = [
'last' => false,
'images' => [],
'data' => []
];
if ( isset( $data['media_provider'], $data['media_search'], $data['media_page'] ) ) {
$data['media_provider'] = sanitize_key( $data['media_provider'] );
if ( $data['media_provider'] === 'all' || $this->is_active_provider( $data['media_provider'] ) ) {
$data['preview_page'] = (int) $data['media_page'];
$data['preview_per_page'] = 20;
// get images
$results['images'] = $this->get_remote_library_images( $data );
// get main instance
$rl = Responsive_Lightbox();
// single provider?
if ( $data['media_provider'] !== 'all' ) {
// get provider
$provider = $rl->providers[$data['media_provider']];
// add response data arguments if needed
if ( ! empty( $provider['response_args'] ) ) {
$response = $provider['instance']->get_response_data();
foreach ( $provider['response_args'] as $arg ) {
if ( array_key_exists( $arg, $response ) )
$results['data'][$provider['slug']][$arg] = base64_encode( json_encode( $response[$arg] ) );
}
}
} else {
// get active providers
$providers = $this->get_active_providers();
if ( ! empty( $providers ) ) {
foreach ( $providers as $provider ) {
// get provider
$provider = $rl->providers[$provider];
// add response data arguments if needed
if ( ! empty( $provider['response_args'] ) ) {
$response = $provider['instance']->get_response_data();
foreach ( $provider['response_args'] as $arg ) {
if ( array_key_exists( $arg, $response ) )
$results['data'][$provider['slug']][$arg] = base64_encode( json_encode( $response[$arg] ) );
}
}
}
}
}
if ( ! empty( $results['images'] ) ) {
// create WP compatible attachments
$results['images'] = $this->create_wp_remote_attachments( $results['images'], $data );
// handle last page if needed
$results['last'] = apply_filters( 'rl_remote_library_query_last_page', false, $results, $data );
} else
$results['last'] = true;
}
}
// send data
wp_send_json( $results );
}
/**
* AJAX upload image action.
*
* @return void
*/
public function ajax_upload_image() {
$data = stripslashes_deep( $_POST );
$new_data = [];
// verified upload?
if ( current_user_can( 'upload_files' ) && isset( $data['rlnonce'], $data['image'], $data['post_id'] ) && wp_verify_nonce( $data['rlnonce'], 'rl-remote-library-upload-image' ) ) {
if ( ! function_exists( 'media_handle_upload' ) )
require_once( path_join( ABSPATH, 'wp-admin/includes/media.php' ) );
if ( ! function_exists( 'wp_handle_upload' ) )
require_once( path_join( ABSPATH, 'wp-admin/includes/file.php' ) );
if ( ! empty( $data['image']['url'] ) ) {
// get image as binary data
$response = wp_safe_remote_get( esc_url_raw( $data['image']['url'] ) );
// get file name
$file_name = basename( parse_url( $data['image']['name'], PHP_URL_PATH ) );
// check extension
$file_ext = strrpos( $file_name, '.' );
// no extension?
if ( $file_ext === false )
$file_name .= '.jpg';
// no errors?
if ( ! is_wp_error( $response ) ) {
$bits = wp_remote_retrieve_body( $response );
$loaded = wp_upload_bits( $file_name, null, $bits, current_time( 'Y/m' ) );
if ( isset( $loaded['error'] ) && $loaded['error'] ) {
$results = [
'error' => true,
'message' => $loaded['error']
];
} else {
// simulate upload
$_FILES['rl-remote-image'] = [
'error' => 0,
'name' => $file_name,
'tmp_name' => $loaded['file'],
'size' => filesize( $loaded['file'] )
];
// get post ID
$post_id = isset( $data['post_id'] ) ? (int) $data['post_id'] : 0;
// upload image, wp handle sanitization and validation here
$attachment_id = media_handle_upload(
'rl-remote-image',
$post_id,
[
'post_title' => $data['image']['title'],
'post_content' => $data['image']['description'],
'post_excerpt' => $data['image']['caption']
],
[
'action' => 'rl_remote_library_handle_upload',
'test_form' => false
]
);
// upload success?
if ( ! is_wp_error( $attachment_id ) ) {
add_post_meta( $attachment_id, '_wp_attachment_image_alt', $data['image']['alt'] );
$new_data['id'] = $attachment_id;
$new_data['full'] = wp_get_attachment_image_src( $attachment_id, 'full' );
}
}
}
}
}
// send data
wp_send_json( $new_data );
}
/**
* Create WP compatible attachments for JavaScript.
*
* @param array $results Requested images
* @param array $args Additional arguments
* @return array
*/
public function create_wp_remote_attachments( $results, $args ) {
// get current user
$user = wp_get_current_user();
// copy results
$copy = $results;
// get current time
$time = current_time( 'timestamp' );
// get date format
$date_format = get_option( 'date_format' );
// format date
$date = date_i18n( __( 'F j Y' ), $time );
// $result is already sanitized by specific provider sanitize_result function
foreach ( $results as $no => $result ) {
// make sure those attributes are strings
$copy[$no]['caption'] = (string) $result['caption'];
$copy[$no]['description'] = (string) $result['description'];
$copy[$no]['title'] = (string) $result['title'];
$copy[$no]['filename'] = $copy[$no]['name'] = (string) $result['filename'];
// rest of attributes
$copy[$no]['id'] = 'rl-attachment-' . ( ( $args['preview_page'] - 1 ) * $args['preview_per_page'] + $no ) . '-' . $args['media_provider'];
$copy[$no]['remote_library_image'] = true;
$copy[$no]['author'] = $user->ID;
$copy[$no]['authorName'] = esc_html( $user->user_login );
$copy[$no]['can'] = [
'save' => true,
'remove' => false
];
$copy[$no]['compat'] = '';
$copy[$no]['date'] = $time;
$copy[$no]['dateFormatted'] = $date;
$copy[$no]['delete'] = '';
$copy[$no]['edit'] = '';
$copy[$no]['update'] = '';
$copy[$no]['filesizeHumanReadable'] = '';
$copy[$no]['filesizeInBytes'] = 0;
$copy[$no]['icon'] = '';
$copy[$no]['link'] = $result['url'];
$copy[$no]['menuOrder'] = 0;
$copy[$no]['meta'] = false;
// check extension
$file_ext = strrpos( basename( parse_url( $result['url'], PHP_URL_PATH ) ), '.' );
// no extension?
if ( $file_ext === false )
$file_ext .= 'jpg';
if ( $file_ext === 'png' || $file_ext === 'gif' ) {
$copy[$no]['mime'] = 'image/' . $file_ext;
$copy[$no]['subtype'] = $file_ext;
} else {
$copy[$no]['mime'] = 'image/jpeg';
$copy[$no]['subtype'] = 'jpeg';
}
$copy[$no]['modified'] = $time;
$copy[$no]['nonces'] = [
'delete' => '',
'edit' => '',
'update' => ''
];
$copy[$no]['orientation'] = $result['orientation'];
$copy[$no]['status'] = 'inherit';
$copy[$no]['type'] = 'image';
$copy[$no]['uploadedTo'] = 0;
$copy[$no]['uploadedToLink'] = '';
$copy[$no]['uploadedToTitle'] = '';
$copy[$no]['sizes'] = [
'medium' => [
'height' => $result['thumbnail_height'],
'width' => $result['thumbnail_width'],
'orientation' => $result['thumbnail_orientation'],
'url' => $result['thumbnail_url']
],
'full' => [
'height' => $result['height'],
'width' => $result['width'],
'orientation' => $result['orientation'],
'url' => $result['url']
]
];
}
return apply_filters( 'rl_remote_library_wp_attachments', $copy, $args );
}
/**
* Remote library media query.
*
* @param array $args
* @return array
*/
public function get_remote_library_images( $args ) {
$args = stripslashes_deep( $args );
// search phrase
if ( isset( $args['media_search'] ) )
$args['media_search'] = strtolower( trim( $args['media_search'] ) );
else
$args['media_search'] = '';
// media provider
if ( isset( $args['media_provider'] ) )
$args['media_provider'] = trim( $args['media_provider'] );
else
$args['media_provider'] = 'all';
// page number
if ( isset( $args['preview_page'] ) )
$args['preview_page'] = (int) $args['preview_page'];
else
$args['preview_page'] = 1;
// number of images per page
if ( isset( $args['preview_per_page'] ) )
$args['preview_per_page'] = (int) $args['preview_per_page'];
else
$args['preview_per_page'] = 20;
// get active providers
$providers = $this->get_active_providers();
// prepare valid providers
$valid_providers = [];
if ( $args['media_provider'] === 'all' )
$valid_providers = $providers;
elseif ( in_array( $args['media_provider'], $providers, true ) )
$valid_providers[] = $args['media_provider'];
$results = [];
// any valid providers?
if ( ! empty( $valid_providers ) ) {
// get main instance
$rl = Responsive_Lightbox();
foreach ( $valid_providers as $provider_name ) {
if ( ! empty( $args['response_data'][$provider_name] ) ) {
// get provider
$provider = $rl->providers[$provider_name];
if ( ! empty( $provider['response_args'] ) ) {
foreach ( $provider['response_args'] as $arg ) {
if ( array_key_exists( $arg, $args['response_data'][$provider_name] ) ) {
$base64 = base64_decode( $args['response_data'][$provider_name][$arg] );
if ( ! empty( $base64 ) )
$args['response_data'][$provider_name][$arg] = json_decode( $base64, true );
}
}
}
}
// get results
$results = apply_filters( 'rl_remote_library_query', $results, $args['media_search'], $provider_name, $args );
// number of results
$nor = count( $results );
// more than requested images?
if ( $nor > $args['preview_per_page'] ) {
// get part of images
$results = array_slice( $results, 0, $args['preview_per_page'], true );
break;
// same amount of images?
} elseif ( $nor === $args['preview_per_page'] )
break;
}
}
return $results;
}
}