misc_pterodactyl-panel/app/Http/Middleware/APISecretToken.php

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<?php
namespace Pterodactyl\Http\Middleware;
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use Crypt;
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use Pterodactyl\Models\APIKey;
use Pterodactyl\Models\APIPermission;
use Illuminate\Http\Request;
use Dingo\Api\Routing\Route;
use Dingo\Api\Auth\Provider\Authorization;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException; // 400
use Symfony\Component\HttpKernel\Exception\UnauthorizedHttpException; // 401
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException; // 403
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use Symfony\Component\HttpKernel\Exception\HttpException; //500
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class APISecretToken extends Authorization
{
protected $algo = 'sha256';
protected $permissionAllowed = false;
public function __construct()
{
//
}
public function getAuthorizationMethod()
{
return 'Authorization';
}
public function authenticate(Request $request, Route $route)
{
if (!$request->bearerToken() || empty($request->bearerToken())) {
throw new UnauthorizedHttpException('The authentication header was missing or malformed');
}
list($public, $hashed) = explode('.', $request->bearerToken());
$key = APIKey::where('public', $public)->first();
if (!$key) {
throw new AccessDeniedHttpException('Invalid API Key.');
}
// Check for Resource Permissions
if (!empty($request->route()->getName())) {
if(!is_null($key->allowed_ips)) {
if (!in_array($request->ip(), json_decode($key->allowed_ips))) {
throw new AccessDeniedHttpException('This IP address does not have permission to use this API key.');
}
}
foreach(APIPermission::where('key_id', $key->id)->get() as &$row) {
if ($row->permission === '*' || $row->permission === $request->route()->getName()) {
$this->permissionAllowed = true;
continue;
}
}
if (!$this->permissionAllowed) {
throw new AccessDeniedHttpException('You do not have permission to access this resource.');
}
}
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try {
$decrypted = Crypt::decrypt($key->secret);
} catch (\Illuminate\Contracts\Encryption\DecryptException $ex) {
throw new HttpException('There was an error while attempting to check your secret key.');
}
if($this->_generateHMAC($request->fullUrl(), $request->getContent(), $decrypted) !== base64_decode($hashed)) {
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throw new BadRequestHttpException('The hashed body was not valid. Potential modification of contents in route.');
}
return true;
}
protected function _generateHMAC($url, $body, $key)
{
$data = urldecode($url) . '.' . $body;
return hash_hmac($this->algo, $data, $key, true);
}
}