Thumbnails not creted

Hi,

I have special server configuration, images folder is shared between multiple sites, using symlink, so the directory structure looks like this
/var/www/site1/
/var/www/shared/images
and /var/www/site1/images is symbolic link pointing to /var/www/shared/images

In this configuration thumbnails are not created (even all paths are writable). Reason is in adimnistrator/components/com_hikashop/helpers/image.php on line 337

		$clean_filename = $fullFilename;
		try{
			$clean_filename = JPath::clean(realpath($fullFilename));
			if((JPATH_ROOT != '') && strpos($clean_filename, JPath::clean(JPATH_ROOT)) !== 0) {
				if(!defined('MULTISITES_MASTER_ROOT_PATH') || MULTISITES_MASTER_ROOT_PATH == '' || strpos($clean_filename, JPath::clean(MULTISITES_MASTER_ROOT_PATH)) !== 0)
					return $ret;
			}
		}catch(Exception $e) {
		}

Hi,

I understand, that realpath is used to remove /../ from the path, so user will not try to upload something somewhere, where he is not allowed. However side effect is that symbolic links are evaluated. Which leads to this problem.

Setting MULTISITES_MASTER_ROOT_PATH helped, but just in frontend. In the administration problem still remains. For temporary I removed realpath from Image helper file (it is on two places there) and from File class (on one place), and administration starts to work.

MULTISITES_MASTER_ROOT_PATH is not used on these other places, so the check should be extended also here. If I will make changes, do you accept code submissions?

Pavel

Ok, finally I found out the problem. MULTISITES_MASTER_ROOT_PATH solves the issue, however, I used defines.php file to define this constant, and I didn't realize that administartion has its standalone defines.php.

So the problem is solved.

Maybe some documentation note on this situation would be great.

Thanks for your help

Pavel