[PHP] Re: Execute command line as a different user

[Shawn McKenzie]

Shawn McKenzie wrote:
Matt palermo wrote:
My PHP is running as a user with limited rights.  I'd like to execute 
a command line as a different user.  I'm trying to delete a file and 
the PHP user doesn't have access to do this.  I know the username and 
password for the admin user that has rights to delete a file.  Is 
there a command I can use to make PHP run a delete command as the 
admin user?  If so, how can I do this?

Thanks,

Matt

There are several ways on *nix systems. I would probably write a shell 
script to do the deletions and setuid of the script to root or a user 
with rights to delete the files.  Then just exec() the shell script.

On winbloze you can use the runas command.

-Shawn

Actually, a quick search shows that many *nix may not let you setuid on
a executable script, so sudo would be an approach.  You should be able 
to setup the apache user in the sudoers file so that it can only run a 
very specif command, such as 'rm /path/to/file/to/delete'.  Then just 
use that:

exec('sudo rm /path/to/file/to/delete');


-Shawn

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