PHP Based sites not handling attachments correctly

[pebkac]

Hi all,

I have a couple of sites on ISPConfig3 running on Ubuntu. One site is a forum and the other is osTicket. Both of these sites have a problem when attachments are uploaded. They both accept the attachment just fine, the problem is that when a user downloads the file it becomes corrupt and not usable. For instance on the forum I have a pdf file and it uploads fine and I can pull the file down via ftp or other means and it opens fine. But when I download it through the forum page it downloads very quickly with a 0byte size and is not usable. I also have the osTicket system running and when users attach pictures they are in the ticket but when you go to open them it is not readable. I've seen this on two differens ISPConfig servers I have installed and I really would like some help in getting it to work.

Thanks,

--Steve

[till]

Which php mode do you use for that website?
Is suexec enabled in the website settings?
Do you get any errors in the error.log of the website, when you upload a file?

[pebkac]

SuExec is checked, PHP mode is Fast-CGI.

This is the error i get when I try and view an attachment:

[Thu Aug 04 09:53:34 2011] [warn] [client 96.247.85.207] mod_fcgid: stderr: PHP Warning:  readfile(/var/www/clients/client1/web1/web/osticket/attachments/0811/5D2292FF8C00A00_Screen_shot_2011_08_02_at_3.53.28_PM.png): failed to open stream: Permission denied in /var/www/clients/client1/web1/web/osticket/scp/attachment.php on line 71, referer: http://www.ccchsupport.com/osticket/scp/tickets.php?id=228

[till]

Please post the output of:

ls -la /var/www/clients/client1/web1/web/osticket/attachments/0811/

[pebkac]

root@osticket:/var/www/clients/client1/web1# ls -la /var/www/clients/client1/web1/web/osticket/attachments/0811/
total 176
drwxrwxrwx 2 web1 client1 4096 2011-08-03 16:30 .
drwxrwxrwx 7 web1 client1 4096 2011-08-02 15:13 ..
-rw-rw---- 1 web1 client1 89232 2011-08-03 16:30 5D2292FF8C00A00_Screen_shot_2011_08_02_at_3.53.28_ PM.png
-rw-rw---- 1 web1 client1 81275 2011-08-02 15:13 7432BAC6FA15680_image.jpg
root@osticket:/var/www/clients/client1/web1#

Also the last error I posted was after I unchecked suEXEC, here it is with it on, and the way it has always been.

root@osticket:/var/www/clients/client1/web1# tail -f /var/www/clients/client1/web1/log/error.log
[Thu Aug 04 10:09:29 2011] [warn] [client 96.247.85.207] mod_fcgid: stderr: PHP Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/www/clients/client1/web1/tmp) in Unknown on line 0, referer: http://www.ccchsupport.com/osticket/scp/index.php

[till]

Also the last error I posted was after I unchecked suEXEC

Ok, that explains the error. The attachments will only work when suexec is on.

root@osticket:/var/www/clients/client1/web1# tail -f /var/www/clients/client1/web1/log/error.log
[Thu Aug 04 10:09:29 2011] [warn] [client 96.247.85.207] mod_fcgid: stderr: PHP Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/www/clients/client1/web1/tmp) in Unknown on line 0, referer: http://www.ccchsupport.com/osticket/scp/index.php

the reason for this error is that you switched off suexec. This caued the session to be written under a wrong user. To fix that, close all browser windows, open the browser again and login again to get a new session.

[pebkac]

Ok, I did that and redownloded the file and it does download and is the correct size but it will not display, windows picture viewer thinks it is damaged and wont display it.

[till]

And you are sure that the file is correct? Please upload a different file yourself to the system. Check the file in picture viewer before you uploaded it and then download it, safe it to disk (dont open it directly) and then try to open the saved file again.