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[Qt] ensure payment request network matches client network

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- replaces checks in SendCoinsDialog::handlePaymentRequest() that belong
  to PaymentServer (normal URIs are special cased, as only an isValid
  check is done on BTC addresses)
- prevents the client to handle payment requests that do not match the
  clients network and shows an error instead (mainly a problem with
  drag&drop payment requests onto the client window)
- includes some small comment changes also
This commit is contained in:
Philip Kaufmann 2013-11-16 01:54:29 +01:00
parent acc2d2ca5f
commit bdc83e8f45
2 changed files with 62 additions and 41 deletions
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77
src/qt/paymentserver.cpp
View file

@ -178,6 +178,9 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
// and the items in savedPaymentRequest will be handled
// when uiReady() is called.
//
// Warning: ipcSendCommandLine() is called early in init,
// so don't use "emit message()", but "QMessageBox::"!
//
bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
{
for (int i = 1; i < argc; i++)
@ -411,7 +414,15 @@ void PaymentServer::handleURIOrFile(const QString& s)
{
SendCoinsRecipient recipient;
if (GUIUtil::parseBitcoinURI(s, &recipient))
{
CBitcoinAddress address(recipient.address.toStdString());
if (!address.IsValid()) {
emit message(tr("URI handling"), tr("Invalid payment address %1").arg(recipient.address),
CClientUIInterface::MSG_ERROR);
}
else
emit receivedPaymentRequest(recipient);
}
else
emit message(tr("URI handling"),
tr("URI can not be parsed! This can be caused by an invalid Bitcoin address or malformed URI parameters."),
@ -425,12 +436,14 @@ void PaymentServer::handleURIOrFile(const QString& s)
{
PaymentRequestPlus request;
SendCoinsRecipient recipient;
if (readPaymentRequest(s, request) && processPaymentRequest(request, recipient))
emit receivedPaymentRequest(recipient);
else
if (!readPaymentRequest(s, request))
{
emit message(tr("Payment request file handling"),
tr("Payment request file can not be read or processed! This can be caused by an invalid payment request file."),
tr("Payment request file can not be read! This can be caused by an invalid payment request file."),
CClientUIInterface::ICON_WARNING);
}
else if (processPaymentRequest(request, recipient))
emit receivedPaymentRequest(recipient);
return;
}
@ -482,6 +495,35 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
if (!optionsModel)
return false;
if (request.IsInitialized()) {
const payments::PaymentDetails& details = request.getDetails();
// Payment request network matches client network?
if ((details.network() == "main" && TestNet()) ||
(details.network() == "test" && !TestNet()))
{
emit message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
CClientUIInterface::MSG_ERROR);
return false;
}
// Expired payment request?
if (details.has_expires() && (int64_t)details.expires() < GetTime())
{
emit message(tr("Payment request rejected"), tr("Payment request has expired."),
CClientUIInterface::MSG_ERROR);
return false;
}
}
else {
emit message(tr("Payment request error"), tr("Payment request is not initialized."),
CClientUIInterface::MSG_ERROR);
return false;
}
recipient.paymentRequest = request;
recipient.message = GUIUtil::HtmlEscape(request.getDetails().memo());
@ -501,7 +543,7 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
// Insecure payments to custom bitcoin addresses are not supported
// (there is no good way to tell the user where they are paying in a way
// they'd have a chance of understanding).
emit message(tr("Payment request error"),
emit message(tr("Payment request rejected"),
tr("Unverified payment requests to custom payment scripts are unsupported."),
CClientUIInterface::MSG_ERROR);
return false;
@ -510,11 +552,10 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
// Extract and check amounts
CTxOut txOut(sendingTo.second, sendingTo.first);
if (txOut.IsDust(CTransaction::nMinRelayTxFee)) {
QString msg = tr("Requested payment amount of %1 is too small (considered dust).")
.arg(BitcoinUnits::formatWithUnit(optionsModel->getDisplayUnit(), sendingTo.second));
emit message(tr("Payment request error"), tr("Requested payment amount of %1 is too small (considered dust).")
.arg(BitcoinUnits::formatWithUnit(optionsModel->getDisplayUnit(), sendingTo.second)),
CClientUIInterface::MSG_ERROR);
qDebug() << "PaymentServer::processPaymentRequest : " << msg;
emit message(tr("Payment request error"), msg, CClientUIInterface::MSG_ERROR);
return false;
}
@ -581,8 +622,8 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
refund_to->set_script(&s[0], s.size());
}
else {
// This should never happen, because sending coins should have just unlocked the wallet
// and refilled the keypool
// This should never happen, because sending coins should have
// just unlocked the wallet and refilled the keypool.
qDebug() << "PaymentServer::fetchPaymentACK : Error getting refund key, refund_to not set";
}
}
@ -594,7 +635,7 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
netManager->post(netRequest, serData);
}
else {
// This should never happen, either:
// This should never happen, either.
qDebug() << "PaymentServer::fetchPaymentACK : Error serializing payment message";
}
}
@ -620,17 +661,15 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
{
PaymentRequestPlus request;
SendCoinsRecipient recipient;
if (request.parse(data) && processPaymentRequest(request, recipient))
if (!request.parse(data))
{
emit receivedPaymentRequest(recipient);
}
else
{
qDebug() << "PaymentServer::netRequestFinished : Error processing payment request";
qDebug() << "PaymentServer::netRequestFinished : Error parsing payment request";
emit message(tr("Payment request error"),
tr("Payment request can not be parsed or processed!"),
tr("Payment request can not be parsed!"),
CClientUIInterface::MSG_ERROR);
}
else if (processPaymentRequest(request, recipient))
emit receivedPaymentRequest(recipient);
return;
}

22
src/qt/sendcoinsdialog.cpp
View file

@ -377,26 +377,8 @@ void SendCoinsDialog::pasteEntry(const SendCoinsRecipient &rv)
bool SendCoinsDialog::handlePaymentRequest(const SendCoinsRecipient &rv)
{
QString strSendCoins = tr("Send Coins");
if (rv.paymentRequest.IsInitialized()) {
// Expired payment request?
const payments::PaymentDetails& details = rv.paymentRequest.getDetails();
if (details.has_expires() && (int64_t)details.expires() < GetTime())
{
emit message(strSendCoins, tr("Payment request expired"),
CClientUIInterface::MSG_WARNING);
return false;
}
}
else {
CBitcoinAddress address(rv.address.toStdString());
if (!address.IsValid()) {
emit message(strSendCoins, tr("Invalid payment address %1").arg(rv.address),
CClientUIInterface::MSG_WARNING);
return false;
}
}
// Just paste the entry, all pre-checks
// are done in paymentserver.cpp.
pasteEntry(rv);
return true;
}