mirror of
https://github.com/vichan-devel/vichan.git
synced 2024-12-11 23:36:02 +01:00
68 lines
1.7 KiB
PHP
68 lines
1.7 KiB
PHP
<?php
|
|
header('Access-Control-Allow-Origin: *');
|
|
|
|
$mode = @$_GET['mode'];
|
|
|
|
require_once("config.php");
|
|
require_once("functions.php");
|
|
|
|
switch ($mode) {
|
|
// Request: GET entrypoint.php?mode=get&extra=1234567890
|
|
// Response: JSON: cookie => "generatedcookie", captchahtml => "captchahtml", expires_in => 120
|
|
case "get":
|
|
if (!isset ($_GET['extra'])) {
|
|
die();
|
|
}
|
|
|
|
$extra = $_GET['extra'];
|
|
$nojs = isset($_GET['nojs']);
|
|
|
|
$captcha = generate_captcha($extra);
|
|
$cookie = $captcha['cookie'];
|
|
$html = $captcha['html'];
|
|
|
|
if ($nojs) {
|
|
header("Content-type: text/html");
|
|
echo "<html><body>You do not have JavaScript enabled. To fill out the CAPTCHA, please copy the ID to the post form in the ID field, and write the answer in the answer field.<br><br>CAPTCHA ID: $cookie<br>CAPTCHA image: $html</body></html>";
|
|
} else {
|
|
header("Content-type: application/json");
|
|
echo json_encode(["cookie" => $cookie, "captchahtml" => $html, "expires_in" => $expires_in]);
|
|
}
|
|
|
|
break;
|
|
|
|
// Request: GET entrypoint.php?mode=check&cookie=generatedcookie&extra=1234567890&text=captcha
|
|
// Response: 0 OR 1
|
|
case "check":
|
|
if (!isset ($_GET['mode'])
|
|
|| !isset ($_GET['cookie'])
|
|
|| !isset ($_GET['extra'])
|
|
|| !isset ($_GET['text'])) {
|
|
die();
|
|
}
|
|
|
|
cleanup($pdo, $expires_in);
|
|
|
|
$query = $pdo->prepare("SELECT * FROM `captchas` WHERE `cookie` = ? AND `extra` = ?");
|
|
$query->execute([$_GET['cookie'], $_GET['extra']]);
|
|
|
|
$ary = $query->fetchAll();
|
|
|
|
if (!$ary) {
|
|
echo "0";
|
|
}
|
|
else {
|
|
$query = $pdo->prepare("DELETE FROM `captchas` WHERE `cookie` = ? AND `extra` = ?");
|
|
$query->execute([$_GET['cookie'], $_GET['extra']]);
|
|
|
|
if ($ary[0]['text'] !== $_GET['text']) {
|
|
echo "0";
|
|
}
|
|
else {
|
|
echo "1";
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|