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Switch to using Qt's QLocalServer/QLocalSocket to handle bitcoin payment links (bitcoin:... URIs) Reason for switch: the boost::interprocess mechanism seemed flaky, and doesn't mesh as well with "The Qt Way" qtipcserver.cpp/h is replaced by paymentserver.cpp/h Click-to-pay now also works on OSX, with a custom Info.plist that registers Bitcoin-Qt as a handler for bitcoin: URLs and an event listener on the main QApplication that handles QFileOpenEvents (Qt translates 'url clicked' AppleEvents into QFileOpenEvents automagically).0.8
Gavin Andresen
12 years ago
7 changed files with 272 additions and 204 deletions
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<?xml version="1.0" encoding="UTF-8"?> |
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<!DOCTYPE plist SYSTEM "file://localhost/System/Library/DTDs/PropertyList.dtd"> |
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<plist version="0.9"> |
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<dict> |
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<key>CFBundleIconFile</key> |
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<string>bitcoin.icns</string> |
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<key>CFBundlePackageType</key> |
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<string>APPL</string> |
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<key>CFBundleGetInfoString</key> |
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<string>Bitcoin-Qt</string> |
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<key>CFBundleSignature</key> |
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<string>????</string> |
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<key>CFBundleExecutable</key> |
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<string>Bitcoin-Qt</string> |
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<key>CFBundleIdentifier</key> |
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<string>org.bitcoinfoundation.Bitcoin-Qt</string> |
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<key>CFBundleURLTypes</key> |
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<array> |
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<dict> |
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<key>CFBundleTypeRole</key> |
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<string>Editor</string> |
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<key>CFBundleURLName</key> |
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<string>org.bitcoinfoundation.BitcoinPayment</string> |
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<key>CFBundleURLSchemes</key> |
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<array> |
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<string>bitcoin</string> |
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</array> |
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</dict> |
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</array> |
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</dict> |
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</plist> |
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// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "paymentserver.h" |
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#include "guiconstants.h" |
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#include "ui_interface.h" |
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#include "util.h" |
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#include <QApplication> |
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#include <QByteArray> |
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#include <QCoreApplication> |
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#include <QDataStream> |
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#include <QDebug> |
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#include <QFileOpenEvent> |
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#include <QHash> |
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#include <QLocalServer> |
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#include <QLocalSocket> |
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#include <QStringList> |
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#include <QUrl> |
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using namespace boost; |
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const int BITCOIN_IPC_CONNECT_TIMEOUT = 1000; // milliseconds
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const QString BITCOIN_IPC_PREFIX("bitcoin:"); |
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//
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// Create a name that is unique for:
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// testnet / non-testnet
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// data directory
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//
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static QString ipcServerName() |
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{ |
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QString name("BitcoinQt"); |
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// Append a simple hash of the datadir
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// Note that GetDataDir(true) returns a different path
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// for -testnet versus main net
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QString ddir(GetDataDir(true).string().c_str()); |
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name.append(QString::number(qHash(ddir))); |
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return name; |
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} |
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//
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// This stores payment requests received before
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// the main GUI window is up and ready to ask the user
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// to send payment.
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//
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static QStringList savedPaymentRequests; |
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//
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// Sending to the server is done synchronously, at startup.
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// If the server isn't already running, startup continues,
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// and the items in savedPaymentRequest will be handled
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// when uiReady() is called.
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//
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bool PaymentServer::ipcSendCommandLine() |
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{ |
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bool fResult = false; |
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const QStringList& args = QCoreApplication::arguments(); |
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for (int i = 1; i < args.size(); i++) |
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{ |
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if (!args[i].startsWith(BITCOIN_IPC_PREFIX, Qt::CaseInsensitive)) |
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continue; |
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savedPaymentRequests.append(args[i]); |
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} |
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foreach (const QString& arg, savedPaymentRequests) |
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{ |
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QLocalSocket* socket = new QLocalSocket(); |
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socket->connectToServer(ipcServerName(), QIODevice::WriteOnly); |
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if (!socket->waitForConnected(BITCOIN_IPC_CONNECT_TIMEOUT)) |
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return false; |
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QByteArray block; |
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QDataStream out(&block, QIODevice::WriteOnly); |
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out.setVersion(QDataStream::Qt_4_0); |
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out << arg; |
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out.device()->seek(0); |
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socket->write(block); |
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socket->flush(); |
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socket->waitForBytesWritten(BITCOIN_IPC_CONNECT_TIMEOUT); |
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socket->disconnectFromServer(); |
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delete socket; |
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fResult = true; |
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} |
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return fResult; |
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} |
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PaymentServer::PaymentServer(QApplication* parent) : QObject(parent), saveURIs(true) |
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{ |
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// Install global event filter to catch QFileOpenEvents on the mac (sent when you click bitcoin: links)
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parent->installEventFilter(this); |
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QString name = ipcServerName(); |
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// Clean up old socket leftover from a crash:
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QLocalServer::removeServer(name); |
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uriServer = new QLocalServer(this); |
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if (!uriServer->listen(name)) |
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qDebug() << tr("Cannot start bitcoin: click-to-pay handler"); |
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else |
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connect(uriServer, SIGNAL(newConnection()), this, SLOT(handleURIConnection())); |
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} |
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bool PaymentServer::eventFilter(QObject *object, QEvent *event) |
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{ |
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// clicking on bitcoin: URLs creates FileOpen events on the Mac:
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if (event->type() == QEvent::FileOpen) |
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{ |
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QFileOpenEvent* fileEvent = static_cast<QFileOpenEvent*>(event); |
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if (!fileEvent->url().isEmpty()) |
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{ |
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if (saveURIs) // Before main window is ready:
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savedPaymentRequests.append(fileEvent->url().toString()); |
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else |
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emit receivedURI(fileEvent->url().toString()); |
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return true; |
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} |
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} |
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return false; |
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} |
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void PaymentServer::uiReady() |
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{ |
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saveURIs = false; |
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foreach (const QString& s, savedPaymentRequests) |
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emit receivedURI(s); |
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savedPaymentRequests.clear(); |
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} |
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void PaymentServer::handleURIConnection() |
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{ |
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QLocalSocket *clientConnection = uriServer->nextPendingConnection(); |
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while (clientConnection->bytesAvailable() < (int)sizeof(quint32)) |
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clientConnection->waitForReadyRead(); |
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connect(clientConnection, SIGNAL(disconnected()), |
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clientConnection, SLOT(deleteLater())); |
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QDataStream in(clientConnection); |
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in.setVersion(QDataStream::Qt_4_0); |
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if (clientConnection->bytesAvailable() < (int)sizeof(quint16)) { |
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return; |
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} |
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QString message; |
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in >> message; |
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if (saveURIs) |
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savedPaymentRequests.append(message); |
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else |
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emit receivedURI(message); |
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} |
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#ifndef PAYMENTSERVER_H |
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#define PAYMENTSERVER_H |
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//
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// This class handles payment requests from clicking on
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// bitcoin: URIs
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//
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// This is somewhat tricky, because we have to deal with
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// the situation where the user clicks on a link during
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// startup/initialization, when the splash-screen is up
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// but the main window (and the Send Coins tab) is not.
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//
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// So, the strategy is:
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//
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// Create the server, and register the event handler,
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// when the application is created. Save any URIs
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// received at or during startup in a list.
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//
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// When startup is finished and the main window is
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// show, a signal is sent to slot uiReady(), which
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// emits a receivedURL() signal for any payment
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// requests that happened during startup.
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//
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// After startup, receivedURL() happens as usual.
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//
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// This class has one more feature: a static
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// method that finds URIs passed in the command line
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// and, if a server is running in another process,
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// sends them to the server.
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//
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#include <QObject> |
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#include <QString> |
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class QApplication; |
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class QLocalServer; |
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class PaymentServer : public QObject |
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{ |
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Q_OBJECT |
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private: |
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bool saveURIs; |
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QLocalServer* uriServer; |
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public: |
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// Returns true if there were URIs on the command line
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// which were successfully sent to an already-running
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// process.
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static bool ipcSendCommandLine(); |
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PaymentServer(QApplication* parent); |
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bool eventFilter(QObject *object, QEvent *event); |
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signals: |
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void receivedURI(QString); |
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public slots: |
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// Signal this when the main window's UI is ready
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// to display payment requests to the user
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void uiReady(); |
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private slots: |
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void handleURIConnection(); |
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}; |
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#endif // PAYMENTSERVER_H
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@@ -1,165 +0,0 @@
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// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <boost/version.hpp> |
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#if defined(WIN32) && BOOST_VERSION == 104900 |
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#define BOOST_INTERPROCESS_HAS_WINDOWS_KERNEL_BOOTTIME |
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#define BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME |
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#endif |
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#include "qtipcserver.h" |
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#include "guiconstants.h" |
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#include "ui_interface.h" |
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#include "util.h" |
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#include <boost/algorithm/string/predicate.hpp> |
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#include <boost/date_time/posix_time/posix_time.hpp> |
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#include <boost/interprocess/ipc/message_queue.hpp> |
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#include <boost/version.hpp> |
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#if defined(WIN32) && (!defined(BOOST_INTERPROCESS_HAS_WINDOWS_KERNEL_BOOTTIME) || !defined(BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME) || BOOST_VERSION < 104900) |
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#warning Compiling without BOOST_INTERPROCESS_HAS_WINDOWS_KERNEL_BOOTTIME and BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME uncommented in boost/interprocess/detail/tmp_dir_helpers.hpp or using a boost version before 1.49 may have unintended results see svn.boost.org/trac/boost/ticket/5392 |
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#endif |
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using namespace boost; |
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using namespace boost::interprocess; |
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using namespace boost::posix_time; |
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// holds Bitcoin-Qt message queue name (initialized in bitcoin.cpp)
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std::string strBitcoinURIQueueName; |
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#if defined MAC_OSX || defined __FreeBSD__ |
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// URI handling not implemented on OSX yet
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void ipcScanRelay(int argc, char *argv[]) { } |
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void ipcInit(int argc, char *argv[]) { } |
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#else |
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static void ipcThread2(void* pArg); |
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static bool ipcScanCmd(int argc, char *argv[], bool fRelay) |
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{ |
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// Check for URI in argv
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bool fSent = false; |
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for (int i = 1; i < argc; i++) |
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{ |
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if (boost::algorithm::istarts_with(argv[i], "bitcoin:")) |
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{ |
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const char *strURI = argv[i]; |
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try { |
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boost::interprocess::message_queue mq(boost::interprocess::open_only, strBitcoinURIQueueName.c_str()); |
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if (mq.try_send(strURI, strlen(strURI), 0)) |
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fSent = true; |
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else if (fRelay) |
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break; |
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} |
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catch (boost::interprocess::interprocess_exception &ex) { |
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// don't log the "file not found" exception, because that's normal for
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// the first start of the first instance
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if (ex.get_error_code() != boost::interprocess::not_found_error || !fRelay) |
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{ |
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printf("main() - boost interprocess exception #%d: %s\n", ex.get_error_code(), ex.what()); |
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break; |
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} |
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} |
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} |
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} |
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return fSent; |
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} |
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void ipcScanRelay(int argc, char *argv[]) |
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{ |
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if (ipcScanCmd(argc, argv, true)) |
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exit(0); |
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} |
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static void ipcThread(void* pArg) |
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{ |
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// Make this thread recognisable as the GUI-IPC thread
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RenameThread("bitcoin-gui-ipc"); |
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try |
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{ |
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ipcThread2(pArg); |
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} |
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catch (std::exception& e) { |
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PrintExceptionContinue(&e, "ipcThread()"); |
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} catch (...) { |
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PrintExceptionContinue(NULL, "ipcThread()"); |
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} |
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printf("ipcThread exited\n"); |
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} |
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static void ipcThread2(void* pArg) |
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{ |
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printf("ipcThread started\n"); |
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message_queue* mq = (message_queue*)pArg; |
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char buffer[MAX_URI_LENGTH + 1] = ""; |
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size_t nSize = 0; |
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unsigned int nPriority = 0; |
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loop |
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{ |
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ptime d = boost::posix_time::microsec_clock::universal_time() + millisec(100); |
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if (mq->timed_receive(&buffer, sizeof(buffer), nSize, nPriority, d)) |
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{ |
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uiInterface.ThreadSafeHandleURI(std::string(buffer, nSize)); |
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Sleep(1000); |
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} |
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if (fShutdown) |
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break; |
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} |
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// Remove message queue
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message_queue::remove(strBitcoinURIQueueName.c_str()); |
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// Cleanup allocated memory
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delete mq; |
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} |
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void ipcInit(int argc, char *argv[]) |
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{ |
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message_queue* mq = NULL; |
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char buffer[MAX_URI_LENGTH + 1] = ""; |
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size_t nSize = 0; |
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unsigned int nPriority = 0; |
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try { |
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mq = new message_queue(open_or_create, strBitcoinURIQueueName.c_str(), 2, MAX_URI_LENGTH); |
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// Make sure we don't lose any bitcoin: URIs
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for (int i = 0; i < 2; i++) |
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{ |
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ptime d = boost::posix_time::microsec_clock::universal_time() + millisec(1); |
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if (mq->timed_receive(&buffer, sizeof(buffer), nSize, nPriority, d)) |
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{ |
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uiInterface.ThreadSafeHandleURI(std::string(buffer, nSize)); |
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} |
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else |
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break; |
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} |
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// Make sure only one bitcoin instance is listening
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message_queue::remove(strBitcoinURIQueueName.c_str()); |
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delete mq; |
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mq = new message_queue(open_or_create, strBitcoinURIQueueName.c_str(), 2, MAX_URI_LENGTH); |
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} |
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catch (interprocess_exception &ex) { |
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printf("ipcInit() - boost interprocess exception #%d: %s\n", ex.get_error_code(), ex.what()); |
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return; |
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} |
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if (!NewThread(ipcThread, mq)) |
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{ |
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delete mq; |
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return; |
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} |
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ipcScanCmd(argc, argv, false); |
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} |
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#endif |
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@ -1,16 +0,0 @@
@@ -1,16 +0,0 @@
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#ifndef QTIPCSERVER_H |
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#define QTIPCSERVER_H |
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#include <string> |
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// Define Bitcoin-Qt message queue name for mainnet
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#define BITCOINURI_QUEUE_NAME_MAINNET "BitcoinURI" |
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// Define Bitcoin-Qt message queue name for testnet
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#define BITCOINURI_QUEUE_NAME_TESTNET "BitcoinURI-testnet" |
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extern std::string strBitcoinURIQueueName; |
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void ipcScanRelay(int argc, char *argv[]); |
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void ipcInit(int argc, char *argv[]); |
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#endif // QTIPCSERVER_H
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