mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-12-23 09:41:51 +00:00
57 lines
1.4 KiB
PHP
57 lines
1.4 KiB
PHP
<?php
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function getPasswordToStore($password, $username) {
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return md5($username . $password);
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}
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function checkPassword($user, $password) {
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return $user['password'] == md5($user['username'] . $password);
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}
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function getPasswordClientSalt() {
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return UOJConfig::$data['security']['user']['client_salt'];
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}
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function crsf_token() {
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if (!isset($_SESSION['_token'])) {
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$_SESSION['_token'] = uojRandString(60);
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}
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return $_SESSION['_token'];
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}
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function crsf_check() {
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if (isset($_POST['_token'])) {
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$_token = $_POST['_token'];
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} elseif (isset($_GET['_token'])) {
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$_token = $_GET['_token'];
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} else {
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return false;
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}
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return $_token === $_SESSION['_token'];
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}
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function crsf_defend() {
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if (!crsf_check()) {
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UOJResponse::page403(<<<EOD
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<div>页面已过期（可能页面真的过期了，也可能是刚才你访问的网页没有完全加载，也可能是你的浏览器版本太老）</div>
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<div><a href="">返回</a></div>
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EOD);
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}
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}
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function submission_frequency_check() {
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$submission_frequency = UOJContext::getMeta('submission_frequency');
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$recent = clone UOJTime::$time_now;
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$recent->sub(new DateInterval($submission_frequency['interval']));
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$num = DB::selectCount([
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"select count(*) from submissions",
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"where", [
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"submitter" => Auth::id(),
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["submit_time", ">=", $recent->format('Y-m-d H:i:s')]
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]
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]);
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if ($num >= max(1, $submission_frequency['limit'])) {
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return false;
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}
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return true;
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}
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