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/* This file is part of the KDE project
SPDX-FileCopyrightText: 2000 Alexander Neundorf <neundorf@kde.org>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "kshellcmdexecutor.h"
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <QSocketNotifier>
#include <QInputDialog>
#include <QFontDatabase>
#include <KDESu/PtyProcess>
#include <KLocalizedString>
KShellCommandExecutor::KShellCommandExecutor(const QString &command, QWidget *parent)
: QTextEdit(parent)
, m_shellProcess(nullptr)
, m_command(command)
, m_readNotifier(nullptr)
, m_writeNotifier(nullptr)
{
setAcceptRichText(false);
setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
setReadOnly(true);
}
KShellCommandExecutor::~KShellCommandExecutor()
{
if (m_shellProcess != nullptr) {
::kill(m_shellProcess->pid() + 1, SIGTERM);
delete m_shellProcess;
};
}
int KShellCommandExecutor::exec()
{
//qCDebug(KONQUEROR_LOG)<<"---------- KShellCommandExecutor::exec()";
setText(QLatin1String(""));
if (m_shellProcess != nullptr) {
::kill(m_shellProcess->pid(), SIGTERM);
delete m_shellProcess;
};
delete m_readNotifier;
delete m_writeNotifier;
m_shellProcess = new KDESu::PtyProcess();
m_shellProcess->setTerminal(true);
QList<QByteArray> args;
args += "-c";
args += m_command.toLocal8Bit();
//qCDebug(KONQUEROR_LOG)<<"------- executing: "<<m_command.toLocal8Bit();
QByteArray shell(getenv("SHELL"));
if (shell.isEmpty()) {
shell = "sh";
}
int ret = m_shellProcess->exec(shell, args);
if (ret < 0) {
//qCDebug(KONQUEROR_LOG)<<"could not execute";
delete m_shellProcess;
m_shellProcess = nullptr;
return 0;
}
m_readNotifier = new QSocketNotifier(m_shellProcess->fd(), QSocketNotifier::Read, this);
m_writeNotifier = new QSocketNotifier(m_shellProcess->fd(), QSocketNotifier::Write, this);
m_writeNotifier->setEnabled(false);
connect(m_readNotifier, &QSocketNotifier::activated, this, &KShellCommandExecutor::readDataFromShell);
connect(m_writeNotifier, &QSocketNotifier::activated, this, &KShellCommandExecutor::writeDataToShell);
return 1;
}
void KShellCommandExecutor::readDataFromShell()
{
//qCDebug(KONQUEROR_LOG)<<"--------- reading ------------";
char buffer[16 * 1024];
int bytesRead =::read(m_shellProcess->fd(), buffer, 16 * 1024 - 1);
//0-terminate the buffer
//process exited
if (bytesRead <= 0) {
slotFinished();
} else if (bytesRead > 0) {
//qCDebug(KONQUEROR_LOG)<<"***********************\n"<<buffer<<"###################\n";
buffer[bytesRead] = '\0';
this->append(QString::fromLocal8Bit(buffer));
setAcceptRichText(false);
};
}
void KShellCommandExecutor::writeDataToShell()
{
//qCDebug(KONQUEROR_LOG)<<"--------- writing ------------";
bool ok;
QString str = QInputDialog::getText(this,
QString(),
i18n("Input Required:"),
QLineEdit::Normal,
QString(),
&ok);
if (ok) {
QByteArray input = str.toLocal8Bit();
::write(m_shellProcess->fd(), input.constData(), input.length());
::write(m_shellProcess->fd(), "\n", 1);
} else {
slotFinished();
}
if (m_writeNotifier) {
m_writeNotifier->setEnabled(false);
}
}
void KShellCommandExecutor::slotFinished()
{
setAcceptRichText(false);
if (m_shellProcess != nullptr) {
delete m_readNotifier;
m_readNotifier = nullptr;
delete m_writeNotifier;
m_writeNotifier = nullptr;
//qCDebug(KONQUEROR_LOG)<<"slotFinished: pid: "<<m_shellProcess->pid();
::kill(m_shellProcess->pid() + 1, SIGTERM);
::kill(m_shellProcess->pid(), SIGTERM);
};
delete m_shellProcess;
m_shellProcess = nullptr;
emit finished();
}
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