init

auth/util.php

@@ -0,0 +1,53 @@
+<?php
+
+function auth_get_client_ip(): string
+{
+    $forwarded = $_SERVER["HTTP_X_FORWARDED_FOR"] ?? "";
+    if ($forwarded) {
+        $parts = explode(",", $forwarded);
+        return trim($parts[0]);
+    }
+    return $_SERVER["REMOTE_ADDR"] ?? "unknown";
+}
+
+function auth_read_json(): array
+{
+    $raw = file_get_contents("php://input");
+    if (!$raw) {
+        return [];
+    }
+    $decoded = json_decode($raw, true);
+    return is_array($decoded) ? $decoded : [];
+}
+
+function auth_json_response(int $status, array $payload): void
+{
+    http_response_code($status);
+    header("Content-Type: application/json; charset=utf-8");
+    echo json_encode($payload, JSON_UNESCAPED_UNICODE);
+    exit;
+}
+
+function auth_get_site_key(array $data): string
+{
+    $siteKey = $data["siteKey"] ?? $_GET["siteKey"] ?? "";
+    return is_string($siteKey) ? trim($siteKey) : "";
+}
+
+function auth_is_valid_login(string $login): bool
+{
+    $len = mb_strlen($login, "UTF-8");
+    return $len >= 3 && $len <= 64;
+}
+
+function auth_is_valid_password(string $password): bool
+{
+    $len = mb_strlen($password, "UTF-8");
+    return $len >= 8 && $len <= 128;
+}
+
+function auth_is_valid_site_key(string $siteKey): bool
+{
+    $len = mb_strlen($siteKey, "UTF-8");
+    return $len >= 3 && $len <= 255;
+}