figlet tool / display ascii art to html/webpage

Comments

• awson Member

  July 2013

  Use PHP's Text_Figlet package?

  http://pear.php.net/package/Text_Figlet
• twain Member

  July 2013 edited July 2013

  Thanks @awson, however I just went ahead and did it with shell_exec..

  Show client IP address in ascii art (eg what is my ip in ascii hehe):

  
  <?php
  $client_addr = filter_var((!empty($_SERVER['HTTP_CLIENT_IP']))? $_SERVER['HTTP_CLIENT_IP']:
  (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))? $_SERVER['HTTP_X_FORWARDED_FOR']:
  (!empty($_SERVER['REMOTE_ADDR']))? $_SERVER['REMOTE_ADDR']:'UNKNOWN', FILTER_SANITIZE_STRING);
  
  $asciip = shell_exec("figlet " .$client_addr. "| sed 's/./& /g;s/ / /g'");
  echo "<h2><*pre>$asciip</*pre>";
  ?>
  
  

  The * in the pre in the code is so it does not conflict with the LET comment pre

  Not sure about the security but it works.
• Adduc Member

  July 2013 edited July 2013

  @twain, I'd be able to bypass your filters and potentially cause harm with a HTTP_X_FORWARDED_FOR header of asdf|rm -rf /. To remedy this, use escapeshellarg($client_addr) to properly escape input for command line usage.
• twain Member

  July 2013 edited July 2013

  @Adduc, thanks very much for that tip; added and very good to know.

  Demo on koding if anyone wants to see... (appears to be showing the koding proxy ip only perhaps.. hmmm)

  http://indigodaddy.kd.io/asciip/

  Just have to say just logged in to koding for the first time in like 4-6 months and it's gotten a hell of a lot better since then.. instead of a shared environment you spin up your own vm now... really great for playing around with code/stuff/testbeds etc. Beats the heck out of http://1.ai now.