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// Copyright (c) 2014-2019, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <QCoreApplication>
#include <QLocalSocket>
#include <QLocalServer>
#include <QtNetwork>
#include <QDebug>
#include "ipc.h"
#include "utils.h"
// Start listening for incoming IPC commands on UDS (Unix) or named pipe (Windows)
void IPC::bind(){
QString path = QString(this->m_socketFile.absoluteFilePath());
qDebug() << path;
this->m_server = new QLocalServer(this);
this->m_server->setSocketOptions(QLocalServer::UserAccessOption);
bool restarted = false;
if(!this->m_server->listen(path)){
// On Unix if the server crashes without closing listen will fail with AddressInUseError.
// To create a new server the file should be removed. On Windows two local servers can listen
// to the same pipe at the same time, but any connections will go to one of the server.
#ifdef Q_OS_UNIX
qDebug() << QString("Unable to start IPC server in \"%1\": \"%2\". Retrying.").arg(path).arg(this->m_server->errorString());
if(this->m_socketFile.exists()){
QFile file(path);
file.remove();
if(this->m_server->listen(path)){
restarted = true;
}
}
#endif
if(!restarted)
qDebug() << QString("Unable to start IPC server in \"%1\": \"%2\".").arg(path).arg(this->m_server->errorString());
}
connect(this->m_server, &QLocalServer::newConnection, this, &IPC::handleConnection);
}
// Process incoming IPC command. First check if monero-wallet-gui is
// already running. If it is, send it to that instance instead, if not,
// queue the command for later use inside our QML engine. Returns true
// when queued, false if sent to another instance, at which point we can
// kill the current process.
bool IPC::saveCommand(QString cmdString){
qDebug() << QString("saveCommand called: %1").arg(cmdString);
QLocalSocket ls;
QByteArray buffer;
buffer = buffer.append(cmdString.toUtf8());
QString socketFilePath = this->socketFile().filePath();
ls.connectToServer(socketFilePath, QIODevice::WriteOnly);
if(ls.waitForConnected(1000)){
ls.write(buffer);
if (!ls.waitForBytesWritten(1000)){
qDebug() << QString("Could not send command \"%1\" over IPC %2: \"%3\"").arg(cmdString, socketFilePath, ls.errorString());
return false;
}
qDebug() << QString("Sent command \"%1\" over IPC \"%2\"").arg(cmdString, socketFilePath);
return false;
}
if(ls.isOpen())
ls.disconnectFromServer();
// Queue for later
this->SetQueuedCmd(cmdString);
return true;
}
bool IPC::saveCommand(const QUrl &url){
return this->saveCommand(url.toString());
}
void IPC::handleConnection(){
QLocalSocket *clientConnection = this->m_server->nextPendingConnection();
connect(clientConnection, &QLocalSocket::disconnected,
clientConnection, &QLocalSocket::deleteLater);
clientConnection->waitForReadyRead(2);
QByteArray cmdArray = clientConnection->readAll();
QString cmdString = QTextCodec::codecForMib(106)->toUnicode(cmdArray); // UTF-8
qDebug() << cmdString;
this->parseCommand(cmdString);
clientConnection->close();
delete clientConnection;
}
void IPC::parseCommand(const QUrl &url){
this->parseCommand(url.toString());
}
void IPC::parseCommand(QString cmdString){
if(cmdString.contains(reURI)){
this->emitUriHandler(cmdString);
}
}
void IPC::emitUriHandler(QString uriString){
emit uriHandler(uriString);
}
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