S2OJ/web/app/models/UOJRequest.php

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PHP
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<?php
class UOJRequest {
const GET = 'get';
const POST = 'post';
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public static function get($name, $val = null, $default = null) {
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if (!isset($_GET[$name])) {
return $default;
}
if ($val !== null && !$val($_GET[$name])) {
return $default;
}
return $_GET[$name];
}
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public static function post($name, $val = null, $default = null) {
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if (!isset($_POST[$name])) {
return $default;
}
if ($val !== null && !$val($_POST[$name])) {
return $default;
}
return $_POST[$name];
}
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public static function data(string $method, string $name, callable $val = null, $default = null) {
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if ($method == self::GET) {
return self::get($name, $val, $default);
} elseif ($method == self::POST) {
return self::post($name, $val, $default);
} else {
return null;
}
}
/**
*
* no such field: false
* invalid user: null
* valid user: array
*
* @return array|null|false
*/
public static function user(string $method, string $key) {
$username = self::data($method, $key);
if ($username === null) {
return false;
}
return UOJUser::query($username);
}
public static function uint(string $method, string $key) {
$val = self::data($method, $key);
if ($val === null) {
return false;
}
return validateUInt($val) ? (int)$val : null;
}
public static function option(string $method, string $key, array $options) {
$str = self::data($method, $key);
if ($str === null || !in_array($str, $options, true)) {
return false;
}
return $str;
}
}