we have the same issues after updating to v1.17.3, we used version 1.17.2

melgsondouglas

solved by activating the fileinfo in the php manager

KevinTheJedi

The problem ist that $file['type'] and FileObject::mime_type($file['tmp_name']) do not return the same result.

in case of a zip-file:
string(28) "application/x-zip-compressed"
string(24) "application/octet-stream"

samplefile attached

bauernbengel

Yes, I have seen this with someone else, however I’m unable to replicate this with ZIP files in my instance. What version of PHP are you using? What browser are you using? What OS are you using when uploading the file?

Cheers.

Ugly Fix:

class.forms.php replace the function

static function isValidFile($file) {
    // Make sure mime type is valid
    #var_dump($file['type'], FileObject::mime_type($file['tmp_name']));die;
    #if (!empty($file['type']) && strcasecmp(FileObject::mime_type($file['tmp_name']),
    #            $file['type']) !== 0)
    #    return false;
    // Check invalid image hacks
    if ($file['tmp_name']
            && stripos($file['type'], 'image/') === 0
            && !exif_imagetype($file['tmp_name']))
        return false;
    return true;
}

bauernbengel

If I were you I’d install a vanilla osTicket and retest there. We do not support the German version. They make customizations to the code so it’s not official osTicket.

Cheers.

bauernbengel

Also, yes, I tried your file and worked without issue.

Cheers.