From:
Operating system: Linux
PHP version: 5.3.2
Package: Zlib Related
Bug Type: Bug
Bug description:zlib.output_compression Overwrites Vary Header
Description:
------------
We have an application which requires Vary: Cookie for its caching scheme
to work correctly. It's using the header() function to set the header
during the request. With PHP 5.2.9/Apache requesting a page with both
Accept-Encoding: gzip and without will correctly append Accept-Encoding to
the Vary:
--
HEAD / HTTP/1.1
Host: www.easports.com
HTTP/1.1 200 OK
Date: Thu, 11 Mar 2010 01:06:33 GMT
Vary: Cookie,Accept-Encoding
--
--
HEAD / HTTP/1.1
Host: www.easports.com
Accept-Encoding: gzip
HTTP/1.1 200 OK
Date: Thu, 11 Mar 2010 01:07:37 GMT
Vary: Cookie,Accept-Encoding
Content-Encoding: gzip
--
With PHP 5.3.2 the Vary header is overwritten when the content is served as
gzip:
---
HEAD / HTTP/1.1
Host: devsonet.dev.easports.ea.com
HTTP/1.1 200 OK
Date: Thu, 11 Mar 2010 01:10:00 GMT
Vary: Cookie,Accept-Encoding
--
--
HEAD / HTTP/1.1
Host: devsonet.dev.easports.ea.com
Accept-Encoding: gzip
HTTP/1.1 200 OK
Date: Thu, 11 Mar 2010 01:10:53 GMT
Vary: Accept-Encoding
Content-Encoding: gzip
--
The attached diff will make the application work as expected. This was
based on reverting a chunk that had changed between PHP 5.2.9 and PHP
5.2.13. This diff was clearly put in there to fix another bug so it's *not*
intended to be applied; it's just for demonstration purposes
--
Edit bug report at http://bugs.php.net/bug.php?id=51269&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51269&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51269&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51269&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51269&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51269&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51269&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51269&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51269&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51269&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51269&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51269&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51269&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51269&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51269&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51269&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51269&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51269&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51269&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51269&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51269&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51269&r=mysqlcfg
