From:
Operating system:
PHP version: 5.3.2
Package: Output Control
Bug Type: Bug
Bug description:ob_gzhandler doesn't check support for gzip encoding properly
Description:
------------
ob_start(ob_gzhandler) can be used to send optionally compressed-output to
clients.
But the test made to check whether the client supports gzip/deflate
encoding only looks at the appearance of the string "gzip" (resp.
"deflate") in the Accept-Encoding header, but doesn't actually parse the
said header.
This means that the following Accept-Encoding headers will trigger
generation of gzip-compressed output when they should not:
* using a string with gzip in it
Accept-Encoding: foogzip25
* using quality parameters as made possible in HTTP
Accept-Encoding: gzip;q=0, identity;q=1
Test script:
---------------
<?php
if (!ob_start("ob_gzhandler")) {
ob_start();
echo "Uncompressed";
} else {
echo "Compressed";
}
ob_end_flush();
?>
Expected result:
----------------
The script below can be used to test with the accept-encoding reported
above; the said accept-encoding should report "Uncompressed" but reports
"Compressed" (gzipped).
--
Edit bug report at http://bugs.php.net/bug.php?id=51898&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51898&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51898&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51898&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51898&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51898&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51898&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51898&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51898&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51898&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51898&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51898&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51898&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51898&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51898&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51898&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51898&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51898&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51898&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51898&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51898&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51898&r=mysqlcfg
