Beispiel #1
0
 private function doLoadKeyPair(string $path) : Generator
 {
     $privateExists = (yield exists("{$path}/private.pem"));
     $publicExists = (yield exists("{$path}/public.pem"));
     $lockExists = (yield exists("{$path}/key.lock"));
     if ($privateExists && $publicExists) {
         while ($lockExists) {
             (yield new Pause(500));
             $lockExists = (yield exists("{$path}/key.lock"));
         }
         return new KeyPair((yield get("{$path}/private.pem")), (yield get("{$path}/public.pem")));
     }
     $lock = new Lock("{$path}/key.lock");
     try {
         $lock->acquire();
         $gen = new OpenSSLKeyGenerator();
         $keyPair = $gen->generate(4096);
         (yield put("{$path}/private.pem", $keyPair->getPrivate()));
         (yield put("{$path}/public.pem", $keyPair->getPublic()));
         return $keyPair;
     } catch (Exception $e) {
         do {
             (yield new Pause(500));
             $lockExists = (yield exists("{$path}/key.lock"));
         } while ($lockExists);
         return new KeyPair((yield get("{$path}/private.pem")), (yield get("{$path}/public.pem")));
     } finally {
         $lock->release();
         unlink("{$path}/key.lock");
         // do not yield in finally!
     }
 }