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