Downloads get corrupted via HiksShop

Hi,

When I download a bought file via HikaShop (ZIP file) it gets corrupted during download.
When I download the same file via my own php script, the file is ok.

After comparing the corrupted ZIP-file and the correct ZIP-file in a HEX Editor, I see that in
the corrupted file line 1 is empty. The actual code starts at line 2.

The correct file's code starts at line 1, as it should.

When I manually delete the first emtpy line in the corrupt file and save it. It's repaired and it works. I can open and unzip the file.

So somewhere the HikaShop PHP code adds this first emtpy line in the download files.

This is the correct file. See the code starts at line 1

I disabled each system plugin one by one and testing it. No change.

I even disabled ALL plugins (this breaks the site) and the download is still corrupted.

So even without any plugin enabled, the download still gets corrupted because of this extra empty line at the beginning of the file.

When I open the order in the backend, and I click on the downloadlink, the file gets downloaded correct!

Link in Mail:

http://www.trancewerk-test.nl/index.php?option=com_hikashop&ctrl=order&task=download&file_id=276&order_id=432

http://www.trancewerk-test.nl/administrator/index.php?option=com_hikashop&ctrl=order&task=download&file_id=276&order_id=432

Hi,

I found the problem. Unfortunately it IS in the HikShop code.

In file administrator/components/com_hikashop/classes/file.php I added two lines of code to fix the problem.


Change this code (around line 326)

header('Content-Type: application/octet-stream');

ob_end_clean(); //added to fix ZIP file corruption
ob_start(); //added to fix ZIP file corruption 
header('Content-Type: application/octet-stream');