Setting permissions for web user to allow exec command

Alligator42 · 09-14-2012, 04:04 PM

I'd like to run the following command from a PHP file, and I'm having trouble. The command is not running, and I'm guessing it is due to permissions for the web user.

Code:

<?php  {
        exec('festival --tts test.txt');
    }
?>

The test.txt file is in the same directory as the PHP file, and I know it can see it. It just doesn't run the command. Why?

KinnowGrower · 09-14-2012, 04:29 PM

1. Show the permission for the file
2. You can try by giving the absolute path for file

Alligator42 · 09-14-2012, 05:00 PM

I changed the permissions of the test.txt file by typing:

sudo chmod 755 test.txt

I don't know where the festival file is, so I don't know the permissions.

Yes, I can run it when I'm logged into the machine - but isn't this different from when it is executed from a PHP web page?

I also tried the absolute path of the test.txt file, and that didn't work. i.e. /var/www/test.txt

I even tried editing sudoers to include this, and it didn't work:
apache ALL=NOPASSWD: /etc/festival

Alligator42 · 09-15-2012, 08:14 AM

I figured out that the command is trying to be run as "nobody". How do I give permissions to "nobody" to allow this to be run?

KinnowGrower · 09-15-2012, 02:49 PM

you can change the ownership of a file with the command

syntax of command is

Code:

chown owner:group filename

Code:

chown nobody:nobody test.txt

Now file test.txt has owner nobody and group-owner is also nobody