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<?php
/**
* Custom /resize route
*
* @since 3.0
* @author dcooney
* @package instant-images
*/
add_action( 'rest_api_init', function () {
$my_namespace = 'instant-images';
$my_endpoint = '/download';
register_rest_route(
$my_namespace,
$my_endpoint,
array(
'methods' => 'POST',
'callback' => 'instant_images_download',
'permission_callback' => function () {
return InstantImages::instant_img_has_access();
},
)
);
});
/**
* Resize Image and run thru media uploader
*
* @param WP_REST_Request $request Rest request object.
* @return $response
* @since 3.0
* @author dcooney
* @package instant-images
*/
function instant_images_download( WP_REST_Request $request ) {
if ( InstantImages::instant_img_has_access() ) {
require_once ABSPATH . 'wp-admin/includes/file.php';
require_once ABSPATH . 'wp-admin/includes/image.php';
// Get JSON Data.
$data = json_decode( $request->get_body(), true ); // Get contents of request body.
if ( $data ) {
$id = $data['id']; // Image ID.
$image_url = $data['image_url']; // Image URL.
$filename = sanitize_text_field( $data['filename'] ); // The filename.
$title = sanitize_text_field( $data['title'] ); // Title.
$alt = sanitize_text_field( $data['alt'] ); // Alt text.
$caption = sanitize_text_field( $data['caption'] ); // Caption text.
$cfilename = sanitize_title( $data['custom_filename'] ); // Custom filename.
$parent_id = ( $data['parent_id'] ) ? sanitize_title( $data['parent_id'] ) : 0; // Parent post ID.
$name = ( ! empty( $cfilename ) ) ? $cfilename . '.jpg' : $filename; // Actual filename.
// Check if remote file exists.
if ( ! instant_images_remote_file_exists( $image_url ) ) {
// Errorhandling.
$response = array(
'success' => false,
'msg' => __( 'Image does not exist or there was an error accessing the remote file.', 'instant-images' ),
'id' => $id,
'attachment' => '',
'admin_url' => admin_url(),
);
wp_send_json( $response );
}
// Send request to `wp_remote_get`.
$response = wp_remote_get( $image_url );
if ( is_wp_error( $response ) ) {
return new WP_Error( 100, __( 'Image download failed, please try again. Errors:', 'instant-images' ) . PHP_EOL . $response->get_error_message() );
}
// Get Headers.
$type = wp_remote_retrieve_header( $response, 'content-type' );
if ( ! $type ) {
return new WP_Error( 100, __( 'Image type could not be determined', 'instant-images' ) );
}
// Upload remote file.
$mirror = wp_upload_bits( $name, null, wp_remote_retrieve_body( $response ) );
// Build Attachment Data Array.
$attachment = array(
'post_title' => $title,
'post_excerpt' => $caption,
'post_content' => '',
'post_status' => 'inherit',
'post_mime_type' => $type,
);
// Insert as attachment.
$image_id = wp_insert_attachment( $attachment, $mirror['file'], $parent_id );
// Add Alt Text as Post Meta.
update_post_meta( $image_id, '_wp_attachment_image_alt', $alt );
// Generate Metadata.
$attach_data = wp_generate_attachment_metadata( $image_id, $mirror['file'] );
wp_update_attachment_metadata( $image_id, $attach_data );
// Resize original image to max size (set in Instant Images settings).
instant_images_resize_download( $name );
// Success.
$response = array(
'success' => true,
'msg' => __( 'Image successfully uploaded to the media library!', 'instant-images' ),
'id' => $id,
'admin_url' => admin_url(),
'attachment' => array(
'id' => $image_id,
'url' => wp_get_attachment_url( $image_id ),
'alt' => $alt,
'caption' => $caption,
),
);
wp_send_json( $response );
} else {
$response = array(
'success' => false,
'msg' => __( 'There was an error getting image details from the request, please try again.', 'instant-images' ),
'id' => '',
'attachment' => '',
'url' => '',
);
wp_send_json( $response );
}
}
}
/**
* Check if a remote image file exists.
*
* @param string $url The url to the remote image.
* @return bool Whether the remote image exists.
* @since 3.0
* @author dcooney
* @package instant-images
*/
function instant_images_remote_file_exists( $url ) {
$response = wp_remote_head( $url );
return 200 === wp_remote_retrieve_response_code( $response );
}
/**
* Resize original image to max size (set in Instant Images settings)
*
* @param string $filename the image filename.
* @since 3.0
* @author dcooney
* @package instant-images
*/
function instant_images_resize_download( $filename ) {
$options = get_option( 'instant_img_settings' );
$download_w = isset( $options['unsplash_download_w'] ) ? $options['unsplash_download_w'] : 1600; // width.
$download_h = isset( $options['unsplash_download_h'] ) ? $options['unsplash_download_h'] : 1200; // height.
require_once ABSPATH . 'wp-admin/includes/file.php';
require_once ABSPATH . 'wp-admin/includes/image.php';
$uploads_dir = wp_upload_dir();
$original_image = wp_get_image_editor( $uploads_dir['path'] . '/' . $filename );
if ( ! is_wp_error( $original_image ) ) {
$original_image->resize( $download_w, $download_h, false );
$original_image->save( $uploads_dir['path'] . '/' . $filename );
}
}
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