Images not imported

Found and fixed my problems.

1. My client’s Non-std OSC installation had images in a different folder than the importer expected. Edited the importer to correct this.
2. The importer was importing dummy files with 654k in size, none of which contains anything, because the target URL didn’t point to a real file. Added a cURL function to check for the actual existence of the file in the URL. If it doesn’t existing, nothing is processed.

If this plugin gets updated, I recommend placing a field where a user could indicate the location of their respective image folders. This would have solved my problem.

Here is what worked for me. Please note that I hard-coded the name of our images folder, rather than taking the time to create an options field where you could indicate the images folder input field [recommended]. You may need to modify that to match yours.

// new function to validate url for image to import
function woocommerce_osc_validate_url($url){
		$ch = curl_init($url);
		$opts = array(CURLOPT_RETURNTRANSFER => true, // do not output to browser
			  CURLOPT_URL => $url,            // set URL
			  CURLOPT_NOBODY => true, 		  // do a HEAD request only
			  CURLOPT_TIMEOUT => 5);   // set timeout
		curl_setopt_array($ch, $opts); 

		$retval = curl_exec($ch); // do it!
		if ($retval !== FALSE){
			$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
			$retval = ($code == 200 ? TRUE : FALSE); // check if HTTP OK
			curl_close($ch); // close handle
		} // END IF
		return $retval;
	}

// modified the import_image function to use the CURL validator above
function woocommerce_osc_import_image($url){
		$attach_id = 0;
		$wp_upload_dir = wp_upload_dir();

		$filename = $wp_upload_dir['path'].'/'.basename($url);

		if(file_exists($filename)) $url = $filename;
// checking two folders because some fool stuffed some of our images in each
               // first look in default /img/ folder.
		$enc_url = rtrim($_POST['store_url'],'/').'/img/'.rawurlencode(basename($url));
              // if not found, look in /images/ folder
		if (woocommerce_osc_validate_url($enc_url)===FALSE)
			$enc_url = rtrim($_POST['store_url'],'/').'/images/'.rawurlencode(basename($url));

               // using CURL again, to copy file, for efficiency and to detect success/failure
		$fp = fopen($filename,'w');
		$ch = curl_init($enc_url);
		curl_setopt($ch, CURLOPT_FILE, $fp);

		$data = curl_exec($ch);

		curl_close($ch);
		fclose($fp);

// only create attachment information if the file copied successfully
		if ( $data === TRUE){ // the file copied correctly
			$wp_filetype = wp_check_filetype(basename($filename), null );

			$attachment = array(
			'guid' => $wp_upload_dir['url'] . '/' . basename( $filename ),
			'post_mime_type' => $wp_filetype['type'],
			'post_title' => preg_replace('/\.[^.]+$/', '', basename($filename)),
			'post_content' => '',
			'post_status' => 'inherit'
			);
                        // Not sure why '37' but it is working, so I'll leave it...
			$attach_id = wp_insert_attachment( $attachment, $filename, 37 );
			require_once(ABSPATH . 'wp-admin/includes/image.php');
			$attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
			wp_update_attachment_metadata( $attach_id, $attach_data );
		}
		return $attach_id;
	}

Hope this helps!