misc_pterodactyl-panel/app/Http/Middleware/APISecretToken.php
2016-01-22 21:56:54 -05:00

125 lines
4.4 KiB
PHP

<?php
/**
* Pterodactyl - Panel
* Copyright (c) 2015 - 2016 Dane Everitt <dane@daneeveritt.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
namespace Pterodactyl\Http\Middleware;
use Crypt;
use IPTools\IP;
use IPTools\Range;
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
use Symfony\Component\HttpKernel\Exception\HttpException; //500
class APISecretToken extends Authorization
{
protected $algo = 'sha256';
protected $permissionAllowed = false;
protected $method = '';
protected $url = '';
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)) {
$inRange = false;
foreach(json_decode($key->allowed_ips) as $ip) {
if (Range::parse($ip)->contains(new IP($request->ip()))) {
$inRange = true;
break;
}
}
if (!$inRange) {
throw new AccessDeniedHttpException('This IP address <' . $request->ip() . '> 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.');
}
}
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.');
}
$this->method = strtoupper($request->method());
$this->url = urldecode($request->fullUrl());
if($this->_generateHMAC($request->getContent(), $decrypted) !== base64_decode($hashed)) {
throw new BadRequestHttpException('The hashed body was not valid. Potential modification of contents in route.');
}
return true;
}
protected function _generateHMAC($body, $key)
{
$data = $this->method . $this->url . $body;
return hash_hmac($this->algo, $data, $key, true);
}
}