#39484 [Com]: intermittent include failure under symlinked virtual hosts

 ID:               39484
 Comment by:       diebar dot uy at gmail dot com
 Reported By:      phpbugz at x0rz dot com
 Status:           No Feedback
 Bug Type:         Apache2 related
 Operating System: linux kernel 2.4.27 w/debian 3.1
 PHP Version:      5.2.0
 New Comment:

It's strange... I've differents vHosts, and this bug only appears on
two of them.


Previous Comments:
------------------------------------------------------------------------

[2008-08-09 22:00:39] diebar dot uy at gmail dot com

I found this bug in PHP 5.2.5 running on RedHat 5.2 linux kernel
2.6.18-92.1.6.el5.

------------------------------------------------------------------------

[2008-05-06 13:29:24] sev at kks-group dot ru

The bug still occurs in 5.2.5. include_path intermittently becomes
unchangable (via ini_set(), set_include_path() and .htaccess).

------------------------------------------------------------------------

[2007-07-09 01:00:01] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

------------------------------------------------------------------------

[2007-07-01 13:43:07] [email protected]

Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows (zip):
 
  http://snaps.php.net/win32/php5.2-win32-latest.zip

For Windows (installer):

  http://snaps.php.net/win32/php5.2-win32-installer-latest.msi



------------------------------------------------------------------------

[2006-11-12 23:21:49] phpbugz at x0rz dot com

Description:
------------
the *first* include will fail intermittently if apache2 virtual host is
pointing to a symlinked DocumentRoot.

problem is not easily reproducable and would occur perhaps 1 in 100
times, usually disappearing on refresh.

this issue has gone away since reconfiguring the apache virtualhost's
DocumentRoot to point to an absolute path instead of a symlinked one.  a
resolution was also found by setting an absolute path for the very first
include within a script.

Reproduce code:
---------------
<?
  set_include_path($_SERVER['DOCUMENT_ROOT']);
  include('foo_include.php');
  include('bar_include.php');
?>

Filesystem : 

/home/www -> /var/www

Apache : 

<VirtualHost>
  DocumentRoot /home/www
</VirtualHost>


Expected result:
----------------
Occasionally observe the following :

*Warning*: include(some_include.php) [function.include]: failed to open
stream: No such file or directory in *foo_include.php* on line *blah*

*Fatal error*: Call to undefined function foo_function() in
*bar_include* on line *blah*

------------
** noting that the first include fails but the second is ok.
** the include_path shown with this error will also point to the
symlink path (/home/www in the 'reproduce code' example), not the
symlink target.

Actual result:
--------------
code was added to dump the SERVER variables on include failure, keeping
in mind the filesystem path is actually /var/www :

*Warning*: include(required/connect.php) [function.include]: failed to
open stream: No such file or directory in
*/var/www/moa/XXX/includes/required_includes.php* on line *7*

*Warning*: include() [function.include]: Failed opening
'required/connect.php' for inclusion (include_path='/home/www/moa/XXX/')
in */var/www/moa/XXX/includes/required_includes.php* on line *7*

array(34) { ["nokeepalive"]=> string(1) "1" ["ssl-unclean-shutdown"]=>
string(1) "1" ["downgrade-1_0"]=> string(1) "1" ["force-response-1_0"]=>
string(1) "1" ["HTTP_ACCEPT"]=> string(87) "image/gif, image/x-xbitmap,
image/jpeg, image/pjpeg, application/x-shockwave-flash, */*"
["HTTP_REFERER"]=> string(40) "http://moa.XXX.com/members_index.php"
["HTTP_ACCEPT_LANGUAGE"]=> string(5) "en-us" ["HTTP_UA_CPU"]=> string(3)
"x86" ["HTTP_ACCEPT_ENCODING"]=> string(13) "gzip, deflate"
["HTTP_USER_AGENT"]=> string(89) "Mozilla/4.0 (compatible; MSIE 7.0;
Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" ["HTTP_HOST"]=>
string(15) "moa.XXX.com" ["HTTP_CONNECTION"]=> string(10) "Keep-Alive"
["HTTP_COOKIE"]=> string(42)
"PHPSESSID=45f4ceaef2ff8824143aad70569ba022" ["PATH"]=> string(28)
"/usr/local/bin:/usr/bin:/bin" ["SERVER_SIGNATURE"]=> string(0) ""
["SERVER_SOFTWARE"]=> string(102) "Apache/2.0.54 (Debian GNU/Linux)
PHP/5.2.0-0.dotdeb.1 with Suhosin-Patch mod_ssl/2.0.54 OpenSSL/0.9.7e"
["SERVER_NAME"]=> string(15) "moa.XXX.com" ["SERVER_ADDR"]=> string(12)
"1.2.3.4" ["SERVER_PORT"]=> string(2) "80" ["REMOTE_ADDR"]=> string(12)
"4.5.6.7" ["DOCUMENT_ROOT"]=> string(22) "/home/www/moa/XXX/"
["SERVER_ADMIN"]=> string(18) "[no address given]" ["SCRIPT_FILENAME"]=>
string(30) "/home/www/moa/XXX/menu.php" ["REMOTE_PORT"]=> string(5)
"33073" ["GATEWAY_INTERFACE"]=> string(7) "CGI/1.1"
["SERVER_PROTOCOL"]=> string(8) "HTTP/1.1" ["REQUEST_METHOD"]=>
string(3) "GET" ["QUERY_STRING"]=> string(11) "module_id=5"
["REQUEST_URI"]=> string(21) "/menu.php?module_id=5" ["SCRIPT_NAME"]=>
string(9) "/menu.php" ["PHP_SELF"]=> string(9) "/menu.php"
["REQUEST_TIME"]=> int(1163034668) ["argv"]=> array(1) { [0]=>
string(11) "module_id=5" } ["argc"]=> int(1) }

*Fatal error*: Call to undefined function conn() in
*/var/www/moa/XXX/security/session.php* on line *109* on line *109* 


------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=39484&edit=1