From: vector dot thorn at gmail dot com
Operating system: Fedora Linux
PHP version: 5.3.1
PHP Bug Type: Output Control
Bug description: PHP cache headers do NOT override server headers
Description:
------------
If this section is in your httpd.conf:
<FilesMatch "\.(php)$">
Header unset Cache-Control
Header unset Expires
Header unset Last-Modified
FileETag None
Header unset Pragma
</FilesMatch>
Then the cache headers here will not be used:
$expires = 60*60*24*365;
$size = filesize("{$client_directory}/{$_GET['did']}");
$last = filemtime("{$client_directory}/{$_GET['did']}");
header("Content-Length: ".$size,true);
header("Etag: ".md5($last),true);
header("Server: Ionisis.com",false);
header("Cache-Control: max-age={$expires}, public,no-transform",true);
header('Expires: ' . gmdate('D, d M Y H:i:s',($last+$expires)) . '
GMT',true);
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $last) . '
GMT',true);
header("Content-type: audio/example");
header("Content-Disposition: attachment; filename=\"{$_GET['did']}\"");
readfile("{$client_directory}/{$_GET['did']}");
and even if you remove that section, and these headers are sent, the
client is still not sending a "if-modified-since" header that can be
captured at the server level for the php level.
Firefox 3.5, Apache 2.2, PHP 5.3, Fedora Linux
Reproduce code:
---------------
Just copy that code, and paste it in an file called download.php, and set
it up so that it grabs an mp3 file, then beat your head into the desk for 2
days :D
Expected result:
----------------
I expected it to send the proper cache headers, despite what the server
was preconfigured to send.
Actual result:
--------------
Had to remove the server's configuration section pertaining to caching php
output.
--
Edit bug report at http://bugs.php.net/?id=50276&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=50276&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=50276&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=50276&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=50276&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=50276&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=50276&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=50276&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=50276&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=50276&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=50276&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=50276&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=50276&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=50276&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=50276&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50276&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=50276&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=50276&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=50276&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=50276&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=50276&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=50276&r=mysqlcfg
