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-rw-r--r--src/qt/paymentserver.cpp91
1 files changed, 61 insertions, 30 deletions
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index 707de55290..bd3dab41a8 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -1,11 +1,10 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "paymentserver.h"
#include "bitcoinunits.h"
-#include "guiconstants.h"
#include "guiutil.h"
#include "optionsmodel.h"
@@ -19,6 +18,7 @@
#include <openssl/x509.h>
#include <openssl/x509_vfy.h>
+
#include <QApplication>
#include <QByteArray>
#include <QDataStream>
@@ -46,14 +46,20 @@
#include <QUrlQuery>
#endif
-using namespace std;
using namespace boost;
+using namespace std;
const int BITCOIN_IPC_CONNECT_TIMEOUT = 1000; // milliseconds
const QString BITCOIN_IPC_PREFIX("bitcoin:");
-const char* BITCOIN_REQUEST_MIMETYPE = "application/bitcoin-paymentrequest";
-const char* BITCOIN_PAYMENTACK_MIMETYPE = "application/bitcoin-paymentack";
-const char* BITCOIN_PAYMENTACK_CONTENTTYPE = "application/bitcoin-payment";
+// BIP70 payment protocol messages
+const char* BIP70_MESSAGE_PAYMENTACK = "PaymentACK";
+const char* BIP70_MESSAGE_PAYMENTREQUEST = "PaymentRequest";
+// BIP71 payment protocol media types
+const char* BIP71_MIMETYPE_PAYMENT = "application/bitcoin-payment";
+const char* BIP71_MIMETYPE_PAYMENTACK = "application/bitcoin-paymentack";
+const char* BIP71_MIMETYPE_PAYMENTREQUEST = "application/bitcoin-paymentrequest";
+// BIP70 max payment request size in bytes (DoS protection)
+const qint64 BIP70_MAX_PAYMENTREQUEST_SIZE = 50000;
X509_STORE* PaymentServer::certStore = NULL;
void PaymentServer::freeCertStore()
@@ -184,7 +190,7 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
// Warning: ipcSendCommandLine() is called early in init,
// so don't use "emit message()", but "QMessageBox::"!
//
-bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
+void PaymentServer::ipcParseCommandLine(int argc, char* argv[])
{
for (int i = 1; i < argc; i++)
{
@@ -192,6 +198,10 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
if (arg.startsWith("-"))
continue;
+ // If the bitcoin: URI contains a payment request, we are not able to detect the
+ // network as that would require fetching and parsing the payment request.
+ // That means clicking such an URI which contains a testnet payment request
+ // will start a mainnet instance and throw a "wrong network" error.
if (arg.startsWith(BITCOIN_IPC_PREFIX, Qt::CaseInsensitive)) // bitcoin: URI
{
savedPaymentRequests.append(arg);
@@ -216,7 +226,7 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
savedPaymentRequests.append(arg);
PaymentRequestPlus request;
- if (readPaymentRequest(arg, request))
+ if (readPaymentRequestFromFile(arg, request))
{
if (request.getDetails().network() == "main")
{
@@ -235,7 +245,6 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
qWarning() << "PaymentServer::ipcSendCommandLine : Payment request file does not exist: " << arg;
}
}
- return true;
}
//
@@ -254,6 +263,7 @@ bool PaymentServer::ipcSendCommandLine()
if (!socket->waitForConnected(BITCOIN_IPC_CONNECT_TIMEOUT))
{
delete socket;
+ socket = NULL;
return false;
}
@@ -262,12 +272,14 @@ bool PaymentServer::ipcSendCommandLine()
out.setVersion(QDataStream::Qt_4_0);
out << r;
out.device()->seek(0);
+
socket->write(block);
socket->flush();
-
socket->waitForBytesWritten(BITCOIN_IPC_CONNECT_TIMEOUT);
socket->disconnectFromServer();
+
delete socket;
+ socket = NULL;
fResult = true;
}
@@ -440,7 +452,7 @@ void PaymentServer::handleURIOrFile(const QString& s)
{
PaymentRequestPlus request;
SendCoinsRecipient recipient;
- if (!readPaymentRequest(s, request))
+ if (!readPaymentRequestFromFile(s, request))
{
emit message(tr("Payment request file handling"),
tr("Payment request file cannot be read! This can be caused by an invalid payment request file."),
@@ -474,18 +486,25 @@ void PaymentServer::handleURIConnection()
handleURIOrFile(msg);
}
-bool PaymentServer::readPaymentRequest(const QString& filename, PaymentRequestPlus& request)
+//
+// Warning: readPaymentRequestFromFile() is used in ipcSendCommandLine()
+// so don't use "emit message()", but "QMessageBox::"!
+//
+bool PaymentServer::readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request)
{
QFile f(filename);
- if (!f.open(QIODevice::ReadOnly))
- {
- qWarning() << "PaymentServer::readPaymentRequest : Failed to open " << filename;
+ if (!f.open(QIODevice::ReadOnly)) {
+ qWarning() << QString("PaymentServer::%1: Failed to open %2").arg(__func__).arg(filename);
return false;
}
- if (f.size() > MAX_PAYMENT_REQUEST_SIZE)
- {
- qWarning() << "PaymentServer::readPaymentRequest : " << filename << " too large";
+ // 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);
return false;
}
@@ -580,10 +599,10 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
void PaymentServer::fetchRequest(const QUrl& url)
{
QNetworkRequest netRequest;
- netRequest.setAttribute(QNetworkRequest::User, "PaymentRequest");
+ netRequest.setAttribute(QNetworkRequest::User, BIP70_MESSAGE_PAYMENTREQUEST);
netRequest.setUrl(url);
netRequest.setRawHeader("User-Agent", CLIENT_NAME.c_str());
- netRequest.setRawHeader("Accept", BITCOIN_REQUEST_MIMETYPE);
+ netRequest.setRawHeader("Accept", BIP71_MIMETYPE_PAYMENTREQUEST);
netManager->get(netRequest);
}
@@ -594,11 +613,11 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
return;
QNetworkRequest netRequest;
- netRequest.setAttribute(QNetworkRequest::User, "PaymentACK");
+ netRequest.setAttribute(QNetworkRequest::User, BIP70_MESSAGE_PAYMENTACK);
netRequest.setUrl(QString::fromStdString(details.payment_url()));
- netRequest.setHeader(QNetworkRequest::ContentTypeHeader, BITCOIN_PAYMENTACK_CONTENTTYPE);
+ netRequest.setHeader(QNetworkRequest::ContentTypeHeader, BIP71_MIMETYPE_PAYMENT);
netRequest.setRawHeader("User-Agent", CLIENT_NAME.c_str());
- netRequest.setRawHeader("Accept", BITCOIN_PAYMENTACK_MIMETYPE);
+ netRequest.setRawHeader("Accept", BIP71_MIMETYPE_PAYMENTACK);
payments::Payment payment;
payment.set_merchant_data(details.merchant_data());
@@ -616,7 +635,6 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
else {
CPubKey newKey;
if (wallet->GetKeyFromPool(newKey)) {
- LOCK(wallet->cs_wallet); // SetAddressBook
CKeyID keyID = newKey.GetID();
wallet->SetAddressBook(keyID, strAccount, "refund");
@@ -646,13 +664,26 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
void PaymentServer::netRequestFinished(QNetworkReply* reply)
{
reply->deleteLater();
- if (reply->error() != QNetworkReply::NoError)
- {
+
+ // BIP70 DoS protection
+ if (reply->size() > BIP70_MAX_PAYMENTREQUEST_SIZE) {
+ QString msg = tr("Payment request %2 is too large (%3 bytes, allowed %4 bytes).")
+ .arg(__func__)
+ .arg(reply->request().url().toString())
+ .arg(reply->size())
+ .arg(BIP70_MAX_PAYMENTREQUEST_SIZE);
+
+ qWarning() << QString("PaymentServer::%1:").arg(__func__) << msg;
+ emit message(tr("Payment request DoS protection"), msg, CClientUIInterface::MSG_ERROR);
+ return;
+ }
+
+ if (reply->error() != QNetworkReply::NoError) {
QString msg = tr("Error communicating with %1: %2")
.arg(reply->request().url().toString())
.arg(reply->errorString());
- qWarning() << "PaymentServer::netRequestFinished : " << msg;
+ qWarning() << "PaymentServer::netRequestFinished: " << msg;
emit message(tr("Payment request error"), msg, CClientUIInterface::MSG_ERROR);
return;
}
@@ -660,7 +691,7 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
QByteArray data = reply->readAll();
QString requestType = reply->request().attribute(QNetworkRequest::User).toString();
- if (requestType == "PaymentRequest")
+ if (requestType == BIP70_MESSAGE_PAYMENTREQUEST)
{
PaymentRequestPlus request;
SendCoinsRecipient recipient;
@@ -676,7 +707,7 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
return;
}
- else if (requestType == "PaymentACK")
+ else if (requestType == BIP70_MESSAGE_PAYMENTACK)
{
payments::PaymentACK paymentACK;
if (!paymentACK.ParseFromArray(data.data(), data.size()))
generated by cgit v1.2.3 (git 2.26.2) at 2024-07-08 17:49:27 +0000