<?php

declare(strict_types=1);

// GET api/v1/package.php?version=vX.Y.Z
// Streams a release ZIP to an authenticated instance.

require_once __DIR__ . "/../../includes/api.php";
require_once __DIR__ . "/../../includes/releases.php";

manageApiRequireMethod("GET");
$instance = manageApiAuthenticate();

$version = trim((string) ($_GET["version"] ?? ""));
if (!manageIsVersion($version)) {
    manageApiFail(400, "Ungültige Version.");
}

try {
    $release = manageReleaseResolve($version);
} catch (Throwable $exception) {
    manageApiFail(404, $exception->getMessage());
}

$path = $release["package_path"];
$size = filesize($path);
$handle = fopen($path, "rb");
if ($size === false || $handle === false) {
    manageApiFail(500, "Release-Paket konnte nicht geöffnet werden.");
}

manageInstanceTouch($instance["id"], []);
manageLogAccess("Package downloaded", [
    "instance" => $instance["id"],
    "version" => $version,
]);

header("Content-Type: application/zip");
header("Content-Disposition: attachment; filename=\"" . addcslashes(basename($path), "\"\\") . "\"");
header("Content-Length: " . (string) $size);
// Private: the response is tied to an authenticated instance, so no shared
// cache may keep a copy.
header("Cache-Control: private, no-store");
header("X-Content-Type-Options: nosniff");

fpassthru($handle);
fclose($handle);