mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-12-01 18:47:20 +01:00
46 lines
2.0 KiB
PHP
46 lines
2.0 KiB
PHP
<?php
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include 'inc/functions.php';
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include "inc/lib/recaptcha/recaptchalib.php";
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require_once 'Net/DNS2.php';
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checkBan('*');
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// My nameserver was broken and I couldn't edit resolv.conf so I just did this instead
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$dns = new Net_DNS2_Resolver(array('nameservers' => array('8.8.8.8')));
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$result = $dns->query(RECAPTCHA_VERIFY_SERVER, "A");
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if ($result and $result->answer[0]) {
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$RECAPTCHA_VERIFY_SERVER_IP = $result->answer[0]->address;
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} else {
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$RECAPTCHA_VERIFY_SERVER_IP = RECAPTCHA_VERIFY_SERVER;
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}
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if ($_SERVER['REQUEST_METHOD'] === 'GET') {
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$ayah_html = recaptcha_get_html($config['recaptcha_public'], NULL, TRUE);
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$body = Element("8chan/dnsbls.html", array("config" => $config, "ayah_html" => $ayah_html));
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echo Element("page.html", array("config" => $config, "body" => $body, "title" => _("Bypass DNSBL"), "subtitle" => _("Post even if blocked")));
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} else {
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$score = recaptcha_check_answer($config['recaptcha_private'],
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$_SERVER["REMOTE_ADDR"],
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$_POST["recaptcha_challenge_field"],
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$_POST["recaptcha_response_field"],
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array(),
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$RECAPTCHA_VERIFY_SERVER_IP);
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if ($score->is_valid) {
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$tor = checkDNSBL($_SERVER['REMOTE_ADDR']);
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if (!$tor) {
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$query = prepare('INSERT INTO ``dnsbl_bypass`` VALUES(:ip, NOW()) ON DUPLICATE KEY UPDATE `created`=NOW()');
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$query->bindValue(':ip', $_SERVER['REMOTE_ADDR']);
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$query->execute() or error(db_error($query));
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} else {
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$cookie = bin2hex(openssl_random_pseudo_bytes(16));
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$query = prepare('INSERT INTO ``tor_cookies`` VALUES(:cookie, NOW(), 0)');
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$query->bindValue(':cookie', $cookie);
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$query->execute() or error(db_error($query));
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setcookie("tor", $cookie);
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}
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echo Element("page.html", array("config" => $config, "body" => '', "title" => _("Success!"), "subtitle" => _("You may now go back and make your post.")));
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} else {
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error(_('You failed the CAPTCHA') . _('. <a href="https://8ch.net/dnsbls_bypass.php">Try again.</a> If it\'s not working, email admin@8chan.co for support.'));
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}
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}
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