mirror of
https://github.com/renbaoshuo/S2OJ.git
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47 lines
1.6 KiB
PHP
47 lines
1.6 KiB
PHP
<?php
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class Cookie {
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public static function checksum($key, $val) {
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return md5(UOJConfig::$data['security']['cookie']['checksum_salt'][0] . $key . UOJConfig::$data['security']['cookie']['checksum_salt'][1] . $val . UOJConfig::$data['security']['cookie']['checksum_salt'][2]);
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}
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public static function get($key) {
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return isset($_COOKIE[$key]) ? $_COOKIE[$key] : null;
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}
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public static function set($key, $val, $expire = 0, $path = null, $config = array()) {
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$config = array_merge(array(
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'secure' => false,
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'httponly' => false
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), $config);
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$_COOKIE[$key] = $val;
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return setcookie($key, $val, $expire, $path, UOJContext::cookieDomain(), $config['secure'], $config['httponly']);
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}
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public static function unsetVar($key, $path = null) {
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if (!isset($_COOKIE[$key])) {
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return true;
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}
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unset($_COOKIE[$key]);
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return setcookie($key, null, -1, $path, UOJContext::cookieDomain());
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}
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public static function safeCheck($key, $path = null) {
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if (!isset($_COOKIE[$key])) {
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return;
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}
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if (!isset($_COOKIE[$key . '_checksum']) || $_COOKIE[$key . '_checksum'] !== Cookie::checksum($key, $_COOKIE[$key])) {
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Cookie::safeUnset($key, $path);
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}
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}
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public static function safeUnset($key, $path = null) {
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Cookie::unsetVar($key, $path);
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Cookie::unsetVar($key . '_checksum', $path);
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}
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public static function safeGet($key, $path = null) {
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Cookie::safeCheck($key, $path);
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return Cookie::get($key);
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}
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public static function safeSet($key, $val, $expire = 0, $path = null, $config = array()) {
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Cookie::set($key, $val, $expire, $path, $config);
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Cookie::set($key . '_checksum', Cookie::checksum($key, $val), $expire, $path, $config);
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}
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}
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