eventespresso / event-espresso-core

		//if the file is located remotely, download it to our uploads DIR, because wp_genereate_attachmnet_metadata needs the file to be local

		if(strpos($guid,$wp_upload_dir['url']) === FALSE){

			//image is located remotely. download it and place it in the uploads directory

			if( ! is_readable($guid)){

				$migration_stage->add_error(sprintf(__("Could not create image attachment from non-existent file: %s", "event_espresso"),$guid));

				return 0;

			}

			$contents= file_get_contents($guid);

			if($contents === FALSE){

				$migration_stage->add_error(sprintf(__("Could not read image at %s, and therefore couldnt create an attachment post for it.", "event_espresso"),$guid));

				return 0;

			}

			$contents= file_get_contents($guid);

			if($contents === FALSE){

				$migration_stage->add_error(sprintf(__("Could not read image at %s, and therefore couldnt create an attachment post for it.", "event_espresso"),$guid));

				return false;

			}

			$local_filepath  = $wp_upload_dir['path'].DS.basename($guid);

			$savefile = fopen($local_filepath, 'w');

			fwrite($savefile, $contents);

					$file_path = !is_readable($file_path) ? EE_ADMIN_PAGES . basename($this->_get_dir()) . '/help_tours/' . $tour . '.class.php' : $file_path;

					//if file is STILL not readable then let's do a EE_Error so its more graceful than a fatal error.

					if ( !is_readable($file_path) ) {

						EE_Error::add_error( sprintf( __('The file path given for the help tour (%s) is not a valid path.  Please check that the string you set for the help tour on this route (%s) is the correct spelling', 'event_espresso'), $file_path, $tour ), __FILE__, __FUNCTION__, __LINE__ );

						return;

					}

					require_once $file_path;

					if ( !class_exists( $tour ) ) {

		if ( is_array($active_names) ) {

			foreach ( $active_names as $name => $class ) {

				$active = new $class();

				if ( ! $active instanceof EE_Messenger ) {

					//we've got an error so let's bubble up the error_object to be caught by caller.

					//todo: would be better to just catch the errors and then return any aggregated errors later.

					EE_Error::add_error(

						sprintf(

							__( 'The "%1$s" messenger is not installed or is invalid', 'event_espresso' ),

							$class

						),

						__FILE__, __FUNCTION__, __LINE__

					);

				}

				$this->_active_messengers[$name] = $active;

				$this->_active_message_types[$name] = ! empty( $_actives[$name]['settings'][$name . '-message_types'] )

					? $_actives[$name]['settings'][$name . '-message_types']