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<?php
declare(strict_types=1);
namespace mystic\forum\utils;
use mystic\forum\Database;
use mystic\forum\Messaging;
use mystic\forum\orm\User;
final class RequestUtils {
use StaticClass;
private static ?string $formErrorDestination = null;
public static function getRequestMethod(): string {
return strtoupper($_SERVER["REQUEST_METHOD"] ?? "GET");
}
public static function isRequestMethod(string $method): bool {
$rMethod = self::getRequestMethod();
return strcasecmp($rMethod, $method) === 0;
}
public static function ensureRequestMethod(string $method): void {
if (!self::isRequestMethod($method)) {
http_response_code(405);
Messaging::error("Invalid request method " . self::getRequestMethod());
exit;
}
}
public static function getRequiredField(string $field, string $formId): string {
$fieldValue = $_POST[$field] ?? null;
if ($fieldValue === null) {
//http_response_code(400);
//Messaging::error("Missing required field $field");
RequestUtils::triggerFormError("Missing required field '$field'", $formId);
//exit;
}
return $fieldValue;
}
public static function storeForm(): void {
$_SESSION["lastForm"] = $_POST ?? [];
$_SESSION["lastForm_uri"] = $_SERVER["REQUEST_URI"];
}
public static function setFormErrorDestination(?string $dest): ?string {
$prev = self::$formErrorDestination;
self::$formErrorDestination = $dest;
return $prev;
}
public static function triggerFormError(string $message, string $formId, ?string $next = null): never {
$next ??= self::$formErrorDestination ?? $_SERVER["REQUEST_URI"];
$_SESSION["formError/$formId"] = $message;
// store last form submission
self::storeForm();
header("Location: $next");
exit;
}
public static function getAndClearFormError(string $formId): ?string {
$err = $_SESSION["formError/$formId"] ?? null;
unset($_SESSION["formError/$formId"]);
return $err;
}
public static function getLastForm(string &$lastFormUri): ?array {
$lastFormUri = $_SESSION["lastForm_uri"] ?? "";
return $_SESSION["lastForm"] ?? null;
}
public static function clearLastForm(): void {
unset($_SESSION["lastForm"]);
unset($_SESSION["lastForm_uri"]);
}
public static function getAuthorizedUser(Database &$db): ?User {
$userId = $_SESSION["authedUser"] ?? null;
if ($userId === null)
return null;
$user = new User();
$user->id = $userId;
if (!$db->fetch($user))
return null;
return $user;
}
public static function setAuthorizedUser(User &$user): void {
$_SESSION["authedUser"] = $user->id;
}
public static function unsetAuthorizedUser(): void {
unset($_SESSION["authedUser"]);
}
}
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