Merge pull request #3145

395d0d5 rework an ugly hack in processPaymentRequest() (Philip Kaufmann)
952d2cd make processPaymentRequest() use a single SendCoinsRecipient (Philip Kaufmann)
983cef4 payment-request UI: use SendCoinsRecipient.message for memo (Philip Kaufmann)
c6c97e0 [Qt] Rework of payment request UI (mainly for insecure pr) (Philip Kaufmann)

src/qt/paymentserver.cpp

@@ -280,9 +280,6 @@ PaymentServer::PaymentServer(QObject* parent, bool startLocalServer) :
             connect(this, SIGNAL(receivedPaymentACK(QString)), this, SLOT(handlePaymentACK(QString)));
         }
     }
-
-    // netManager is null until uiReady() is called
-    netManager = NULL;
 }
 
 PaymentServer::~PaymentServer()
@@ -378,6 +375,7 @@ void PaymentServer::handleURIOrFile(const QString& s)
                 fetchRequest(fetchUrl);
             else
                 qDebug() << "PaymentServer::handleURIOrFile : Invalid URL: " << fetchUrl;
+
             return;
         }
 
@@ -388,18 +386,17 @@ void PaymentServer::handleURIOrFile(const QString& s)
             emit message(tr("URI handling"),
                 tr("URI can not be parsed! This can be caused by an invalid Bitcoin address or malformed URI parameters."),
                 CClientUIInterface::ICON_WARNING);
+
         return;
     }
 
     if (QFile::exists(s))
     {
         PaymentRequestPlus request;
-        QList<SendCoinsRecipient> recipients;
-        if (readPaymentRequest(s, request) && processPaymentRequest(request, recipients)) {
-            foreach (const SendCoinsRecipient& recipient, recipients){
-                emit receivedPaymentRequest(recipient);
-            }
-        }
+        SendCoinsRecipient recipient;
+        if (readPaymentRequest(s, request) && processPaymentRequest(request, recipient))
+            emit receivedPaymentRequest(recipient);
+
         return;
     }
 }
@@ -445,14 +442,37 @@ bool PaymentServer::readPaymentRequest(const QString& filename, PaymentRequestPl
     return request.parse(data);
 }
 
-bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, QList<SendCoinsRecipient>& recipients)
+bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoinsRecipient& recipient)
 {
     if (!optionsModel)
         return false;
 
-    QList<std::pair<CScript,qint64> > sendingTos = request.getPayTo();
-    qint64 totalAmount = 0;
+    recipient.paymentRequest = request;
+    recipient.message = GUIUtil::HtmlEscape(request.getDetails().memo());
+
+    request.getMerchant(PaymentServer::certStore, recipient.authenticatedMerchant);
+
+    QList<std::pair<CScript, qint64> > sendingTos = request.getPayTo();
+    QStringList addresses;
+
     foreach(const PAIRTYPE(CScript, qint64)& sendingTo, sendingTos) {
+        // Extract and check destination addresses
+        CTxDestination dest;
+        if (ExtractDestination(sendingTo.first, dest)) {
+            // Append destination address
+            addresses.append(QString::fromStdString(CBitcoinAddress(dest).ToString()));
+        }
+        else if (!recipient.authenticatedMerchant.isEmpty()){
+            // 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"),
+                tr("Unverified payment requests to custom payment scripts are unsupported."),
+                CClientUIInterface::MSG_ERROR);
+            return false;
+        }
+
+        // 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).")
@@ -463,43 +483,16 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, QList<Sen
             return false;
         }
 
-        totalAmount += sendingTo.second;
+        recipient.amount += sendingTo.second;
     }
+    // Store addresses and format them to fit nicely into the GUI
+    recipient.address = addresses.join("<br />");
 
-    recipients.append(SendCoinsRecipient());
-
-    if (request.getMerchant(PaymentServer::certStore, recipients[0].authenticatedMerchant)) {
-        recipients[0].paymentRequest = request;
-        recipients[0].amount = totalAmount;
-        qDebug() << "PaymentServer::processPaymentRequest : Payment request from " << recipients[0].authenticatedMerchant;
+    if (!recipient.authenticatedMerchant.isEmpty()) {
+        qDebug() << "PaymentServer::processPaymentRequest : Secure payment request from " << recipient.authenticatedMerchant;
     }
     else {
-        recipients.clear();
-        // Insecure payment requests may turn into more than one recipient if
-        // the merchant is requesting payment to more than one address.
-        for (int i = 0; i < sendingTos.size(); i++) {
-            std::pair<CScript, qint64>& sendingTo = sendingTos[i];
-            recipients.append(SendCoinsRecipient());
-            recipients[i].amount = sendingTo.second;
-            QString memo = QString::fromStdString(request.getDetails().memo());
-            recipients[i].label = GUIUtil::HtmlEscape(memo);
-            CTxDestination dest;
-            if (ExtractDestination(sendingTo.first, dest)) {
-                if (i == 0) // Tie request to first pay-to, we don't want multiple ACKs
-                    recipients[i].paymentRequest = request;
-                recipients[i].address = QString::fromStdString(CBitcoinAddress(dest).ToString());
-                qDebug() << "PaymentServer::processPaymentRequest : Payment request, insecure " << recipients[i].address;
-            }
-            else {
-                // 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"),
-                    tr("Insecure requests to custom payment scripts unsupported"),
-                    CClientUIInterface::MSG_ERROR);
-                return false;
-            }
-        }
+        qDebug() << "PaymentServer::processPaymentRequest : Insecure payment request to " << addresses.join(", ");
     }
 
     return true;
@@ -590,12 +583,9 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
     if (requestType == "PaymentRequest")
     {
         PaymentRequestPlus request;
-        QList<SendCoinsRecipient> recipients;
-        if (request.parse(data) && processPaymentRequest(request, recipients)) {
-            foreach (const SendCoinsRecipient& recipient, recipients) {
-                emit receivedPaymentRequest(recipient);
-            }
-        }
+        SendCoinsRecipient recipient;
+        if (request.parse(data) && processPaymentRequest(request, recipient))
+            emit receivedPaymentRequest(recipient);
         else
             qDebug() << "PaymentServer::netRequestFinished : Error processing payment request";