PHP executing System command

abdul_zu · 12-27-2005, 01:54 PM

Hi All,

I was trying to execute some linux command using PHP but i found that from html folder i cannot execute all linux command. I have my Asterisk running on the Same Server, i wanted to check it from web browser using PHP if asterisk not working the system function of PHP will start my asterisk.

But i think i cannot run full command from PHP uising web browser. here is the code which i was trying to run.

PHP Code:




<?php 
echo '<pre>'; 
$last_line = system('asterisk', '-rx', $retval"); 
echo ' 
</pre> 
<hr />Last line of the output: ' . $last_line . ' 
<hr />Return value: ' . $retval; 
?>

Can anyone help me how i can give this file for root access permission?

bulliver · 12-27-2005, 03:10 PM

Check your php.ini file. You are almost certainly in "Safe mode", in which any executables you wish to run from a 'system' or exec' call must be in a "safe_mode_exec_dir"

See this for more info:
http://ca.php.net/manual/en/features.safe-mode.php

abdul_zu · 12-28-2005, 01:28 AM

Hi bulliver,

I put my php script path in safe_mode_exec_dir but still i am not able to execute.

This is my php.ini

Quote:

safe_mode = Off
safe_mode_gid = Off
safe_mode_include_dir =
safe_mode_exec_dir = /var/www/html/asterisk/gui

And this is my PHP script.

PHP Code:



echo '<pre>'; 
 
$last_line = system('ps -aux|grep asterisk', $retval); #Working 
 
$last_line = system('asterisk -rc reload', $retval); #Not working 
 
echo ' 
</pre> 
<hr />Last line of the output: ' . $last_line . ' 
<hr />Return value: ' . $retval;

Any idea please?

Guttorm · 12-28-2005, 06:33 AM

My guess is that the PATH environment variable does not include the directory where asterisk is. Could also be that the Apache web server user doesn't have rights to run it.

I'd try a
which asterisk
to find out where it is, and supply a full path in the system statement.

abdul_zu · 12-28-2005, 02:14 PM

Hello,

Still the problem is not solved. may be i am putting the value in wrong variable, please give me the variable name where i should modify.

[root@hatifserver5 sbin]# which asterisk
/usr/sbin/asterisk
[root@hatifserver5 sbin]#

Script path: /var/www/html/asterisk/gui

I did the new following modification.

Code:

safe_mode = Off
safe_mode_gid = Off
safe_mode_include_dir = /usr/sbin/asterisk
safe_mode_exec_dir = /var/www/html/asterisk/gui
safe_mode_allowed_env_vars = /usr/sbin/asterisk

Thak You
Abdul Lateef