gadi__ | kanazuchi cat 1gb_file.txt | telnet server 80

cat_1gb_file_txt.php

<?php

if ($_GET["redirurl"]) {
    $redir_url = $_GET["redirurl"];
} else {
    $redir_url = 'http://www.kanazuchi.com';
}

echo '<center><br/><br/><br/>';

$form_post = '<form method="post" action="/index.php?zone=teste_gadi&redirurl=' . $redir_url . '">';
echo $form_post;
echo '<input name="email" type="text"><br/>';
echo '<input name="check_email" type="submit" value="Check email">';

$portal_action = <<<EOD
<form method="post" action="#PORTAL_ACTION#">
    <input name="redirurl" type="hidden" value="#PORTAL_REDIRURL#"><br/>
    <input name="zone" type="hidden" value="#PORTAL_ZONE#"><br/>
    <input name="accept" type="submit" value="Continue"><br/>
</form>
EOD;

if ($_POST['check_email']) {
    if (preg_match("/.*@kanazuchi.com/", $_POST['email'])) {
        $data_to_save = $_POST['email'] . '|' . $_SERVER['REMOTE_ADDR'];
        file_put_contents('/usr/local/etc/email_logged', $data_to_save, FILE_APPEND);
        echo $portal_action . "<br/>";
    }   
}

?>