C++ PaymentRequestPlus::getMerchant方法代码示例

//.........这里部分代码省略.........
            mine = wtx.txout_is_mine.begin();
            for (const CTxOut& txout : wtx.tx->vout) {
                if (*(mine++)) {
                    strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatHtmlWithUnit(unit, wallet.getCredit(txout, ISMINE_ALL)) + "<br>";
                }
            }
        }
    }

    strHTML += "<b>" + tr("Net amount") + ":</b> " + BitcoinUnits::formatHtmlWithUnit(unit, nNet, true) + "<br>";

    //
    // Message
    //
    if (wtx.value_map.count("message") && !wtx.value_map["message"].empty())
        strHTML += "<br><b>" + tr("Message") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.value_map["message"], true) + "<br>";
    if (wtx.value_map.count("comment") && !wtx.value_map["comment"].empty())
        strHTML += "<br><b>" + tr("Comment") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.value_map["comment"], true) + "<br>";

    strHTML += "<b>" + tr("Transaction ID") + ":</b> " + rec->getTxHash() + "<br>";
    strHTML += "<b>" + tr("Transaction total size") + ":</b> " + QString::number(wtx.tx->GetTotalSize()) + " bytes<br>";
    strHTML += "<b>" + tr("Transaction virtual size") + ":</b> " + QString::number(GetVirtualTransactionSize(*wtx.tx)) + " bytes<br>";
    strHTML += "<b>" + tr("Output index") + ":</b> " + QString::number(rec->getOutputIndex()) + "<br>";

    // Message from normal bitcoin:URI (bitcoin:123...?message=example)
    for (const std::pair<std::string, std::string>& r : orderForm)
        if (r.first == "Message")
            strHTML += "<br><b>" + tr("Message") + ":</b><br>" + GUIUtil::HtmlEscape(r.second, true) + "<br>";

    //
    // PaymentRequest info:
    //
    for (const std::pair<std::string, std::string>& r : orderForm)
    {
        if (r.first == "PaymentRequest")
        {
            PaymentRequestPlus req;
            req.parse(QByteArray::fromRawData(r.second.data(), r.second.size()));
            QString merchant;
            if (req.getMerchant(PaymentServer::getCertStore(), merchant))
                strHTML += "<b>" + tr("Merchant") + ":</b> " + GUIUtil::HtmlEscape(merchant) + "<br>";
        }
    }

    if (wtx.is_coinbase)
    {
        quint32 numBlocksToMaturity = COINBASE_MATURITY +  1;
        strHTML += "<br>" + tr("Generated coins must mature %1 blocks before they can be spent. When you generated this block, it was broadcast to the network to be added to the block chain. If it fails to get into the chain, its state will change to \"not accepted\" and it won't be spendable. This may occasionally happen if another node generates a block within a few seconds of yours.").arg(QString::number(numBlocksToMaturity)) + "<br>";
    }

    //
    // Debug view
    //
    if (node.getLogCategories() != BCLog::NONE)
    {
        strHTML += "<hr><br>" + tr("Debug information") + "<br><br>";
        for (const CTxIn& txin : wtx.tx->vin)
            if(wallet.txinIsMine(txin))
                strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatHtmlWithUnit(unit, -wallet.getDebit(txin, ISMINE_ALL)) + "<br>";
        for (const CTxOut& txout : wtx.tx->vout)
            if(wallet.txoutIsMine(txout))
                strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatHtmlWithUnit(unit, wallet.getCredit(txout, ISMINE_ALL)) + "<br>";

        strHTML += "<br><b>" + tr("Transaction") + ":</b><br>";
        strHTML += GUIUtil::HtmlEscape(wtx.tx->ToString(), true);

        strHTML += "<br><b>" + tr("Inputs") + ":</b>";
        strHTML += "<ul>";

        for (const CTxIn& txin : wtx.tx->vin)
        {
            COutPoint prevout = txin.prevout;

            Coin prev;
            if(node.getUnspentOutput(prevout, prev))
            {
                {
                    strHTML += "<li>";
                    const CTxOut &vout = prev.out;
                    CTxDestination address;
                    if (ExtractDestination(vout.scriptPubKey, address))
                    {
                        std::string name;
                        if (wallet.getAddress(address, &name, /* is_mine= */ nullptr, /* purpose= */ nullptr) && !name.empty())
                            strHTML += GUIUtil::HtmlEscape(name) + " ";
                        strHTML += QString::fromStdString(EncodeDestination(address));
                    }
                    strHTML = strHTML + " " + tr("Amount") + "=" + BitcoinUnits::formatHtmlWithUnit(unit, vout.nValue);
                    strHTML = strHTML + " IsMine=" + (wallet.txoutIsMine(vout) & ISMINE_SPENDABLE ? tr("true") : tr("false")) + "</li>";
                    strHTML = strHTML + " IsWatchOnly=" + (wallet.txoutIsMine(vout) & ISMINE_WATCH_ONLY ? tr("true") : tr("false")) + "</li>";
                }
            }
        }

        strHTML += "</ul>";
    }

    strHTML += "</font></html>";
    return strHTML;
}

bool PaymentServer::processPaymentRequest(const PaymentRequestPlus& request, SendCoinsRecipient& recipient)
{
    if (!optionsModel)
        return false;

    if (request.IsInitialized()) {
        // Payment request network matches client network?
        if (!verifyNetwork(request.getDetails())) {
            Q_EMIT message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
                CClientUIInterface::MSG_ERROR);

            return false;
        }

        // Make sure any payment requests involved are still valid.
        // This is re-checked just before sending coins in WalletModel::sendCoins().
        if (verifyExpired(request.getDetails())) {
            Q_EMIT message(tr("Payment request rejected"), tr("Payment request expired."),
                CClientUIInterface::MSG_ERROR);

            return false;
        }
    } else {
        Q_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());

    request.getMerchant(certStore.get(), recipient.authenticatedMerchant);

    QList<std::pair<CScript, CAmount> > sendingTos = request.getPayTo();
    QStringList addresses;

    for (const std::pair<CScript, CAmount>& sendingTo : sendingTos) {
        // Extract and check destination addresses
        CTxDestination dest;
        if (ExtractDestination(sendingTo.first, dest)) {
            // Append destination address
            addresses.append(QString::fromStdString(EncodeDestination(dest)));
        }
        else if (!recipient.authenticatedMerchant.isEmpty()) {
            // Unauthenticated payment requests 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).
            Q_EMIT message(tr("Payment request rejected"),
                tr("Unverified payment requests to custom payment scripts are unsupported."),
                CClientUIInterface::MSG_ERROR);
            return false;
        }

        // Bitcoin amounts are stored as (optional) uint64 in the protobuf messages (see paymentrequest.proto),
        // but CAmount is defined as int64_t. Because of that we need to verify that amounts are in a valid range
        // and no overflow has happened.
        if (!verifyAmount(sendingTo.second)) {
            Q_EMIT message(tr("Payment request rejected"), tr("Invalid payment request."), CClientUIInterface::MSG_ERROR);
            return false;
        }

        // Extract and check amounts
        CTxOut txOut(sendingTo.second, sendingTo.first);
        if (IsDust(txOut, ::dustRelayFee)) {
            Q_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);

            return false;
        }

        recipient.amount += sendingTo.second;
        // Also verify that the final amount is still in a valid range after adding additional amounts.
        if (!verifyAmount(recipient.amount)) {
            Q_EMIT message(tr("Payment request rejected"), tr("Invalid payment request."), CClientUIInterface::MSG_ERROR);
            return false;
        }
    }
    // Store addresses and format them to fit nicely into the GUI
    recipient.address = addresses.join("<br />");

    if (!recipient.authenticatedMerchant.isEmpty()) {
        qDebug() << "PaymentServer::processPaymentRequest: Secure payment request from " << recipient.authenticatedMerchant;
    }
    else {
        qDebug() << "PaymentServer::processPaymentRequest: Insecure payment request to " << addresses.join(", ");
    }

    return true;
}