sudo in php exec

Question

I don t know what the deal is here     So I want to run an applescript  sudo osascript myscript scpt  This works fine in the terminal  but not when I execute it via PHP s exec    nothing happens  The console says   no tty present and no askpass program specified   TTY unknown         I did my research  and it seems I m missing the password for the sudo command  I tried a couple different ways to get around this  including    writing  admin ALL  ALL  ALL in  etc sudoers and proc open   instead of exec     none of which seem to be working  consequently driving me CrAzY   So basically  is there a clear-cut way to get PHP to execute a simple terminal command     EDIT  to clarify  myscript scpt is a simple appleScript that changes the onscreen UI  for a larger project    In theory  simply osascript myscript scpt should be enough  however the sudo is for some reason necessary to invoke some response from the system   If the sudo could be somehow eliminated  I don t think I would be having this permissions problem

User · Answer

I think you can bring specific access to user and command with visudo something like this:

nobody ALL = NOPASSWD: /path/to/osascript myscript.scpt

and with php:

@exec("sudo /path/to/osascript myscript.scpt ");

supposing nobody user is running apache.

User · Answer

I had a similar situation trying to exec   a backend command and also getting no tty present and no askpass program specified in the web server error log  Original  bad  code    output   array     return var   0  exec  sudo my command    output   return var     A bash wrapper solved this issue  such as    output   array     return var   0  exec  sudo bash -c  my command     output   return var     Not sure if this will work in every case  Also  be sure to apply the appropriate quoting escaping rules on my command portion

User · Answer

The best secure method is to use the crontab  ie Save all your commands in a database say  mysql table and create a cronjob to read these mysql entreis and execute via exec   or shell exec    Please read this link for more detailed information        killProcess php

User · Answer

Run sudo visudo command then set - sudo   ALL  ALL ALL  to  sudo   ALL  ALL ALL  NOPASSWD  ALL it will work

User · Answer

It sounds like you need to set up passwordless sudo  Try    admin ALL  ALL  NOPASSWD  osascript myscript scpt   Also comment out the following line  in  etc sudoers via visudo   if it is there   Defaults    requiretty

User · Answer

php  the bash console is created  and it executes 1st script  which call sudo to the second one  see below    dev     GET  device     cmd     bin bash  home www start bash    dev  echo  cmd  shell exec  cmd       home www start bash      bin bash  usr bin sudo  home www myMount bash  1   myMount bash       bin bash function error exit     echo  Wrong parameter  1 gt  amp 2   exit 1                  oc  you want to run script from root level without root privileges  to do that create and modify the  etc sudoers d mount file   www-data ALL  ALL ALL  NOPASSWD  home www myMount bash   dont forget to chmod   sudo chmod 0440  etc sudoers d mount

User · Answer

I recently published a project that allows PHP to obtain and interact with a real Bash shell  Get it here  https   github com merlinthemagic MTS The shell has a pty  pseudo terminal device  same as you would have in i e  a ssh session   and you can get the shell as root if desired  Not sure you need root to execute your script  but given you mention sudo it is likely   After downloading you would simply use the following code    shell       MTS Factories  getDevices  - gt getLocalHost  - gt getShell  bash   true    return1     shell- gt exeCmd   path to osascript myscript scpt

[php] sudo in php exec()

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