Payment Protocol: X509-validated payment requests

Add support for a Payment Protocol to Bitcoin-Qt.

Payment messages are protocol-buffer encoded and communicated over
http(s), so this adds a dependency on the Google protocol buffer
library, and requires Qt with OpenSSL support.

1 files changed, 28 insertions, 7 deletions

diff --git a/src/qt/sendcoinsentry.cpp b/src/qt/sendcoinsentry.cpp
index 1c54850a03..75610f199e 100644
--- a/src/qt/sendcoinsentry.cpp
+++ b/src/qt/sendcoinsentry.cpp
@@ -12,12 +12,14 @@
 #include <QClipboard>
 
 SendCoinsEntry::SendCoinsEntry(QWidget *parent) :
-    QFrame(parent),
+    QStackedWidget(parent),
     ui(new Ui::SendCoinsEntry),
     model(0)
 {
     ui->setupUi(this);
 
+    setCurrentWidget(ui->SendCoinsInsecure);
+
 #ifdef Q_OS_MAC
     ui->payToLayout->setSpacing(4);
 #endif
@@ -101,6 +103,9 @@ bool SendCoinsEntry::validate()
     // Check input validity
     bool retval = true;
 
+    if (!recipient.authenticatedMerchant.isEmpty())
+        return retval;
+
     if(!ui->payTo->hasAcceptableInput() ||
        (model && !model->validateAddress(ui->payTo->text())))
     {
@@ -124,13 +129,15 @@ bool SendCoinsEntry::validate()
 
 SendCoinsRecipient SendCoinsEntry::getValue()
 {
-    SendCoinsRecipient rv;
+    if (!recipient.authenticatedMerchant.isEmpty())
+        return recipient;
 
-    rv.address = ui->payTo->text();
-    rv.label = ui->addAsLabel->text();
-    rv.amount = ui->payAmount->value();
+    // User-entered or non-authenticated:
+    recipient.address = ui->payTo->text();
+    recipient.label = ui->addAsLabel->text();
+    recipient.amount = ui->payAmount->value();
 
-    return rv;
+    return recipient;
 }
 
 QWidget *SendCoinsEntry::setupTabChain(QWidget *prev)
@@ -145,9 +152,22 @@ QWidget *SendCoinsEntry::setupTabChain(QWidget *prev)
 
 void SendCoinsEntry::setValue(const SendCoinsRecipient &value)
 {
+    recipient = value;
+
     ui->payTo->setText(value.address);
     ui->addAsLabel->setText(value.label);
     ui->payAmount->setValue(value.amount);
+
+    if (!recipient.authenticatedMerchant.isEmpty())
+    {
+        const payments::PaymentDetails& details = value.paymentRequest.getDetails();
+
+        ui->payTo_s->setText(value.authenticatedMerchant);
+        ui->memo_s->setTextFormat(Qt::PlainText);
+        ui->memo_s->setText(QString::fromStdString(details.memo()));
+        ui->payAmount_s->setValue(value.amount);
+        setCurrentWidget(ui->SendCoinsSecure);
+    }
 }
 
 void SendCoinsEntry::setAddress(const QString &address)
@@ -158,7 +178,7 @@ void SendCoinsEntry::setAddress(const QString &address)
 
 bool SendCoinsEntry::isClear()
 {
-    return ui->payTo->text().isEmpty();
+    return ui->payTo->text().isEmpty() && ui->payTo_s->text().isEmpty();
 }
 
 void SendCoinsEntry::setFocus()
@@ -172,5 +192,6 @@ void SendCoinsEntry::updateDisplayUnit()
     {
         // Update payAmount with the current unit
         ui->payAmount->setDisplayUnit(model->getOptionsModel()->getDisplayUnit());
+        ui->payAmount_s->setDisplayUnit(model->getOptionsModel()->getDisplayUnit());
     }
 }