Commit befd7d42 authored by Ben's avatar Ben
Browse files

Added in offchain rate limiting

parent 1674767b

Core/Blockchain/Wallets/OffChain/Transactions.php

+31 −2
Original line number Original line Diff line number Diff line
@@ -98,6 +98,9 @@ class Transactions 
            if ($balance->add($this->amount)->lt(0)) {

            if ($balance->add($this->amount)->lt(0)) {

                throw new \Exception('Not enough funds');

                throw new \Exception('Not enough funds');

            }

            }

            if ($this->countOffchainBoosts(time() - (60*60*24), time()) > 10) {

                throw new \Exception('Maximum of 10 offchain tokens per day exceeded.');

            }

    

    

            $transaction = new Transaction();

            $transaction = new Transaction();
@@ -200,7 +203,6 @@ class Transactions 
            }

            }





            // Receiver Transaction

            // Receiver Transaction



            $receiverTxGuid = $this->guid->build();

            $receiverTxGuid = $this->guid->build();





            $receiverTx = new Transaction();

            $receiverTx = new Transaction();
@@ -274,4 +276,31 @@ class Transactions 
        return (string) BigNumber::toPlain($value, 18);

        return (string) BigNumber::toPlain($value, 18);

    }

    }





    /**

     * Counts the amount of offchain boosts for the user.

     *

     * @param integer from - unix timestamp 'from' time.

     * @param integer to - unix timestamp 'to' time.

     * @return integer the amount of offchain boosts.

     */

    private function countOffchainBoosts($from, $to) {

        $repo = Di::_()->get('Blockchain\Transactions\Repository');

        $opts = [

            'timestamp' => [

                'gte' => $from,

                'lte' => $to,

            ],

            'user_guid' => $this->user->guid,

            'offset' => 0,

        ];

        $result = $repo->getList($opts);

        $result = array_filter($result['transactions'], function(Transaction $transaction) {

            return $transaction->getContract() === 'offchain:boost';

        });

        return array_reduce($result, function($acc, $transaction) {

            $acc -= $transaction->getAmount() / 1000000000000000000;

            return $acc;

        });

    }



}
 
}