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wp-content/plugins/ewww-image-optimizer/classes/class-background-process-ngg2.php

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+<?php
+/**
+ * Class for Background processing of NextGEN Gallery images.
+ *
+ * @link https://ewww.io
+ * @package EWWW_Image_Optimizer
+ */
+
+namespace EWWW;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+/**
+ * Processes NextGEN uploads in background/async mode.
+ *
+ * Uses a dual-queue system to track uploads to be optimized, handling them one at a time.
+ *
+ * @see EWWW\Background_Process
+ */
+class Background_Process_Ngg2 extends Background_Process {
+
+	/**
+	 * The action name used to trigger this class extension.
+	 *
+	 * @access protected
+	 * @var string $action
+	 */
+	protected $action = 'ewwwio_ngg2_optimize';
+
+	/**
+	 * The queue name for this class extension.
+	 *
+	 * @access protected
+	 * @var string $action
+	 */
+	protected $active_queue = 'nextg-async';
+
+	/**
+	 * Runs task for an item from the NextGEN queue.
+	 *
+	 * Makes sure an image upload has finished processing and has been stored in the database.
+	 * Then runs the usual nextgen optimization routine on the specified item.
+	 *
+	 * @access protected
+	 * @global bool $ewwwngg
+	 *
+	 * @param array $item The id of the upload, and how many attempts have been made so far.
+	 * @return bool|array If the item is not complete, return it. False indicates completion.
+	 */
+	protected function task( $item ) {
+		session_write_close();
+		if ( empty( $item['attempts'] ) ) {
+			$item['attempts'] = 0;
+		}
+		$id = $item['id'];
+		ewwwio_debug_message( "background processing nextgen2: $id" );
+		if ( ! defined( 'NGG_PLUGIN_VERSION' ) ) {
+			return false;
+		}
+		global $ewwwngg;
+		// Get a NextGEN image object.
+		$image = $ewwwngg->get_ngg_image( $id );
+		if ( ! is_object( $image ) ) {
+			++$item['attempts'];
+			sleep( 4 );
+			ewwwio_debug_message( "could not retrieve image, requeueing {$item['attempts']}" );
+			return $item;
+		}
+		$ewwwngg->ewww_added_new_image( $image );
+		return false;
+	}
+
+	/**
+	 * Runs failure routine for an item from the queue.
+	 *
+	 * @access protected
+	 *
+	 * @param array $item The id of the attachment, how many attempts have been made to process
+	 *                    the item and whether it is a new upload.
+	 */
+	protected function failure( $item ) {
+		if ( empty( $item['id'] ) ) {
+			return;
+		}
+		if ( ! defined( 'NGG_PLUGIN_VERSION' ) ) {
+			return false;
+		}
+		// Get a NextGEN image object.
+		global $ewwwngg;
+		$image     = $ewwwngg->get_ngg_image( $item['id'] );
+		$file_path = $ewwwngg->get_image_abspath( $image, 'full' );
+		if ( ! empty( $file_path ) ) {
+			ewww_image_optimizer_add_file_exclusion( $file_path );
+		}
+	}
+}