Shoutbox

Here's an adaptation of stonesour's ip_check(), with strict proxy support:


<?php
function ip_check()
{
  // Addresses to block
  $block_ip[0] = "64.246.30.37";
  $block_ip[1] = "207.46.249.252";
  $block_ip[2] = "212.143.162.198";

  if (in_array($_SERVER["REMOTE_ADDR"], $block_ip))
    return false;
  if (in_array($_SERVER["HTTP_CLIENT_IP"], $block_ip))
    return false;
  if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
    $proxy = explode(",",$_SERVER["HTTP_X_FORWARDED_FOR"]);
    $proxy = str_replace(" ","",$proxy); $i = 0;
    while ($proxy[$i]) {
      if (in_array($proxy[$i], $block_ip))
        return false;
      $i++;
    }
  }
  return true;
}
?>


This one should also ban people who use standard HTTP proxies... Note that the function returns TRUE if the user is allowed entry, and FALSE if s/he is banned.

Does anyone know how to fill the $block_ip array more efficiently?

quote:

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Originally posted by sock
quote:

Originally posted by reisyboy
How can you block IP on ur PC? Is it in the HOSTS?


No, that simply acts as DNS cache which overrides DNS lookups on your computer. It can be abused to block access to certain domain names from your PC (by pointing them to localhost or something), but not actual IP addresses. You'd have to use a firewall to do that. 

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Ahh right right right, ok well thats good enough for me, i want to restrict certian websites on certian computers (Sisters been asked to by dad) So ill just put the domians i want blocked in her pc's HOSTS

quote:

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Originally posted by anubis_kree_
Couldn't a JavaScript code do the same if PHP is unsupported?

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No, you can't in JavaScript. It's useless... Like sock said: the user could disable the javascript and the block is lifted...
Furthermore, JavaScript is client-side... PHP is server-side... You can only block someone/IP's with a server-side language...

I decided to use .htaccess to block people

.htaccess is great!