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bitcoin/src/qt/verifymessagedialog.cpp

120 lines
3.7 KiB

#include "verifymessagedialog.h"
#include "ui_verifymessagedialog.h"
#include <string>
#include <vector>
#include <QDialog>
#include <QLabel>
#include <QLineEdit>
#include <QPlainTextEdit>
#include <QPushButton>
#include "main.h"
#include "wallet.h"
#include "walletmodel.h"
#include "guiutil.h"
#include "base58.h"
VerifyMessageDialog::VerifyMessageDialog(QWidget *parent) :
QDialog(parent),
ui(new Ui::VerifyMessageDialog)
{
ui->setupUi(this);
#if (QT_VERSION >= 0x040700)
/* Do not move this to the XML file, Qt before 4.7 will choke on it */
ui->lnAddress->setPlaceholderText(tr("Enter a Bitcoin address (e.g. 1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L)"));
ui->lnSig->setPlaceholderText(tr("Enter Bitcoin signature"));
#endif
GUIUtil::setupAddressWidget(ui->lnAddress, this);
ui->lnAddress->installEventFilter(this);
ui->lnSig->setFont(GUIUtil::bitcoinAddressFont());
ui->lnAddress->setFocus();
}
VerifyMessageDialog::~VerifyMessageDialog()
{
delete ui;
}
void VerifyMessageDialog::on_verifyMessage_clicked()
{
CBitcoinAddress addr(ui->lnAddress->text().toStdString());
if (!addr.IsValid())
{
ui->lnAddress->setValid(false);
ui->lblStatus->setStyleSheet("QLabel { color: red; }");
ui->lblStatus->setText(tr("\"%1\" is not a valid address.").arg(ui->lnAddress->text()) + QString(" ") + tr("Please check the address and try again."));
return;
}
CKeyID keyID;
if (!addr.GetKeyID(keyID))
{
ui->lnAddress->setValid(false);
ui->lblStatus->setStyleSheet("QLabel { color: red; }");
ui->lblStatus->setText(tr("\"%1\" does not refer to a key.").arg(ui->lnAddress->text()) + QString(" ") + tr("Please check the address and try again."));
return;
}
bool fInvalid = false;
std::vector<unsigned char> vchSig = DecodeBase64(ui->lnSig->text().toStdString().c_str(), &fInvalid);
if (fInvalid)
{
ui->lnSig->setValid(false);
ui->lblStatus->setStyleSheet("QLabel { color: red; }");
ui->lblStatus->setText(tr("The signature could not be decoded.") + QString(" ") + tr("Please check the signature and try again."));
return;
}
CDataStream ss(SER_GETHASH, 0);
ss << strMessageMagic;
ss << ui->edMessage->document()->toPlainText().toStdString();
CKey key;
if (!key.SetCompactSignature(Hash(ss.begin(), ss.end()), vchSig))
{
ui->lnSig->setValid(false);
ui->lblStatus->setStyleSheet("QLabel { color: red; }");
ui->lblStatus->setText(tr("The signature did not match the message digest.")+ QString(" ") + tr("Please check the signature and try again."));
return;
}
if (!(CBitcoinAddress(key.GetPubKey().GetID()) == addr))
{
ui->lblStatus->setStyleSheet("QLabel { color: red; }");
ui->lblStatus->setText(QString("<nobr>") + tr("Message verification failed.") + QString("</nobr>"));
return;
}
ui->lblStatus->setStyleSheet("QLabel { color: green; }");
ui->lblStatus->setText(QString("<nobr>") + tr("Message verified.") + QString("</nobr>"));
}
void VerifyMessageDialog::on_clearButton_clicked()
{
ui->lnAddress->clear();
ui->lnSig->clear();
ui->edMessage->clear();
ui->lblStatus->clear();
ui->edMessage->setFocus();
}
bool VerifyMessageDialog::eventFilter(QObject *object, QEvent *event)
{
if (object == ui->lnAddress && (event->type() == QEvent::MouseButtonPress ||
event->type() == QEvent::FocusIn))
{
// set lnAddress to valid, as QEvent::FocusIn would not reach QValidatedLineEdit::focusInEvent
ui->lnAddress->setValid(true);
ui->lnAddress->selectAll();
return true;
}
return QDialog::eventFilter(object, event);
}