<?php
$action = $_GET['action'] or die("F");
$code   = $_GET['code'] or die("F");
$ip     = $_GET['ip'] or die("F");
if($code != md5("The Book is on the Table + $ip")){
  die("F");
}
$file="chat_ipsbloqueados.txt";
if($action == "ban") {
  $open=fopen($file,"a") or die ("FF");
  fwrite($open,$ip."\r\n") or die("F");
  echo "T";
} elseif($action == "rm") {

  $open = fopen($file, "r") or die("FF");
  $lines = explode("\r\n", fread($open, filesize($file)));
  $n = "";
  $find = false;

  for($i = 0; $i < count($lines); $i++){
    if($lines[$i] != $ip and !empty($lines[$i]) ) {
      $n .=  $lines[$i]."\r\n";
    }elseif($lines[$i] == $ip) {
      $find = true;
    }
  }
  if($find == true) {
    fclose($open);
    $open = fopen($file, "w") or die("F");
    fwrite($open, $n) or die("F");
    echo "T";
  } else {
    echo "F";
  }
}
fclose($open);
?>