diff options
Diffstat (limited to 'src/qt')
-rw-r--r-- | src/qt/paymentserver.cpp | 34 | ||||
-rw-r--r-- | src/qt/paymentserver.h | 6 | ||||
-rw-r--r-- | src/qt/test/paymentservertests.cpp | 3 |
3 files changed, 25 insertions, 18 deletions
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp index 5cc4d00dbf..31a6d65a8d 100644 --- a/src/qt/paymentserver.cpp +++ b/src/qt/paymentserver.cpp @@ -509,12 +509,7 @@ bool PaymentServer::readPaymentRequestFromFile(const QString& filename, PaymentR } // BIP70 DoS protection - if (f.size() > BIP70_MAX_PAYMENTREQUEST_SIZE) { - qWarning() << QString("PaymentServer::%1: Payment request %2 is too large (%3 bytes, allowed %4 bytes).") - .arg(__func__) - .arg(filename) - .arg(f.size()) - .arg(BIP70_MAX_PAYMENTREQUEST_SIZE); + if (!verifySize(f.size())) { return false; } @@ -685,14 +680,13 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply) reply->deleteLater(); // BIP70 DoS protection - if (reply->size() > BIP70_MAX_PAYMENTREQUEST_SIZE) { - QString msg = tr("Payment request %1 is too large (%2 bytes, allowed %3 bytes).") - .arg(reply->request().url().toString()) - .arg(reply->size()) - .arg(BIP70_MAX_PAYMENTREQUEST_SIZE); - - qWarning() << QString("PaymentServer::%1:").arg(__func__) << msg; - Q_EMIT message(tr("Payment request DoS protection"), msg, CClientUIInterface::MSG_ERROR); + if (!verifySize(reply->size())) { + Q_EMIT message(tr("Payment request rejected"), + tr("Payment request %1 is too large (%2 bytes, allowed %3 bytes).") + .arg(reply->request().url().toString()) + .arg(reply->size()) + .arg(BIP70_MAX_PAYMENTREQUEST_SIZE), + CClientUIInterface::MSG_ERROR); return; } @@ -790,6 +784,18 @@ bool PaymentServer::verifyExpired(const payments::PaymentDetails& requestDetails return fVerified; } +bool PaymentServer::verifySize(qint64 requestSize) +{ + bool fVerified = (requestSize <= BIP70_MAX_PAYMENTREQUEST_SIZE); + if (!fVerified) { + qWarning() << QString("PaymentServer::%1: Payment request too large (%2 bytes, allowed %3 bytes).") + .arg(__func__) + .arg(requestSize) + .arg(BIP70_MAX_PAYMENTREQUEST_SIZE); + } + return fVerified; +} + bool PaymentServer::verifyAmount(const CAmount& requestAmount) { bool fVerified = MoneyRange(requestAmount); diff --git a/src/qt/paymentserver.h b/src/qt/paymentserver.h index 5df0a14cf7..fa120a435c 100644 --- a/src/qt/paymentserver.h +++ b/src/qt/paymentserver.h @@ -88,13 +88,12 @@ public: // OptionsModel is used for getting proxy settings and display unit void setOptionsModel(OptionsModel *optionsModel); - // This is now public, because we use it in paymentservertests.cpp - static bool readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request); - // Verify that the payment request network matches the client network static bool verifyNetwork(const payments::PaymentDetails& requestDetails); // Verify if the payment request is expired static bool verifyExpired(const payments::PaymentDetails& requestDetails); + // Verify the payment request size is valid as per BIP70 + static bool verifySize(qint64 requestSize); // Verify the payment request amount is valid static bool verifyAmount(const CAmount& requestAmount); @@ -131,6 +130,7 @@ protected: bool eventFilter(QObject *object, QEvent *event); private: + static bool readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request); bool processPaymentRequest(const PaymentRequestPlus& request, SendCoinsRecipient& recipient); void fetchRequest(const QUrl& url); diff --git a/src/qt/test/paymentservertests.cpp b/src/qt/test/paymentservertests.cpp index b28934cd31..fa5696325d 100644 --- a/src/qt/test/paymentservertests.cpp +++ b/src/qt/test/paymentservertests.cpp @@ -185,7 +185,8 @@ void PaymentServerTests::paymentServerTests() tempFile.open(); tempFile.write((const char*)randData, sizeof(randData)); tempFile.close(); - QCOMPARE(PaymentServer::readPaymentRequestFromFile(tempFile.fileName(), r.paymentRequest), false); + // compares 50001 <= BIP70_MAX_PAYMENTREQUEST_SIZE == false + QCOMPARE(PaymentServer::verifySize(tempFile.size()), false); // Payment request with amount overflow (amount is set to 21000001 BTC): data = DecodeBase64(paymentrequest5_cert2_BASE64); |