Getting 100's of Backtrace: USER NOTICE: Image not found Errors

darkufo

Hi,

I was checking my logs this morning and I'm seeing literally 1000's of these identical errors in my log.

The gallery etc is all displaying fine and working great

http://spoilertv.co.uk/images

I was curious as to what might be causing this?

Here is a sample of the errors (they are all the same)

{Sun, 04 Aug 2013 22:32:51 GMT} Zenphoto v1.4.3.1[10590]
Backtrace: USER NOTICE: Image not found; file does not exist. in /home/spoilert/public_html/images/zp-core/functions-image.php on line 33
trigger_error called
from imageError (functions-image.php [33])
from i.php [185]

This is the code from the fuctions-image.php file

Line 33 is the trigger_error($errormessage, E_USER_NOTICE); line

function imageError($status_text, $errormessage, $errorimg='err-imagegeneral.png') {
global $newfilename, $album, $image;
$debug = isset($_GET['debug']);
if ($debug) {
echo(''.sprintf(gettext('Zenphoto Image Processing Error: %s'), $errormessage).''
. '

'.sprintf(gettext('Request URI: [ `%s` ]'), sanitize($_SERVER['REQUEST_URI'], 3))
. 'PHP_SELF: [ `' . sanitize($_SERVER['PHP_SELF'], 3) . '` ]'
. (empty($newfilename) ? '' : ''.sprintf(gettext('Cache: [`%s`]'), '/'.CACHEFOLDER.'/' . sanitize($newfilename, 3)).' ')
. (empty($image) || empty($album) ? '' : ' '.sprintf(gettext('Image: [`%s`]'),sanitize($album.'/'.$image, 3)).' '));
} else {
trigger_error($errormessage, E_USER_NOTICE);
header("HTTP/1.0 $status_text");
header("Status: $status_text");
header('Location: ' . FULLWEBPATH . '/' . ZENFOLDER . '/images/' . $errorimg);
}
exitZP();
}

Here is the code from i.php. Line 185 is the imageError('404 Not Found', gettext("Image not found; file does not exist."), 'err-imagenotfound.png'); link

if (!file_exists($imgfile)) {
header("HTTP/1.0 404 Not Found");
header("Status: 404 Not Found");
imageError('404 Not Found', gettext("Image not found; file does not exist."), 'err-imagenotfound.png');
}

acrylian

Please look at your server access log. If someone for example requests an image page url (yourdomain.com/album/image.jpg.php for example) that does not exists the image of course does also not and would throw an error. Sometimes spammers try these things.

darkufo

Ah, thanks Acrylian. That would certainly explain it.

I suspected something like that. Glad to know.

Thanks for the reply.

sbillard

If you were running the current version of Zenphoto you could enable the image processor security option and these access attempts would be blocked.