Switched to experimental because of LXQt namespace changeubuntu/cosmic debian/0.9.0+20150908-1
Alf Gaida
9 years ago
parent
de2a9821ec
commit
2191e2bfb2
@ -1,13 +1,14 @@
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lxqt-sudo (0.9.0+20150831-1) unstable; urgency=medium
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lxqt-sudo (0.9.0+20150908-1) experimental; urgency=medium
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[ Alf Gaida ]
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* Cherry-picked upstream version 0.9.0+21050831.
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* Cherry-picked upstream version 0.9.0+20150908.
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* Fixed .gitignore
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* Added upstream signing key and use it in watch file
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* Added docs
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* Fixed control with cme fix dpkg-control
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* Switched to experimental because of LXQt namespace change
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[ ChangZhuo Chen (陳昌倬) ]
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* Initial release (Closes:#795801)
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-- ChangZhuo Chen (陳昌倬) <czchen@debian.org> Sat, 22 Aug 2015 10:32:52 +0800
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-- Alf Gaida <agaida@siduction.org> Wed, 23 Sep 2015 00:06:05 +0200
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@ -0,0 +1,193 @@
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/* BEGIN_COMMON_COPYRIGHT_HEADER
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* (c)LGPL2+
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*
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* LXQt - a lightweight, Qt based, desktop toolset
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* http://lxqt.org
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*
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* Copyright: 2015 LXQt team
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* Authors:
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* Palo Kisa <palo.kisa@gmail.com>
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*
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* This program or library is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* END_COMMON_COPYRIGHT_HEADER */
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#include <LXQt/Application>
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#include "passworddialog.h"
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#include <QMessageBox>
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#include <QSocketNotifier>
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#include <QDebug>
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#include <QThread>
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#include <pty.h>
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#include <unistd.h>
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#include <memory>
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#include <csignal>
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#include <sys/wait.h>
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#include <fcntl.h>
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extern const QString app_master;
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extern const QString su_prog;
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const QString su_prog{QStringLiteral(LXQTSUDO_SU)};
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static const QString su_pwd_prompt_end{QStringLiteral(": ")};
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static const QChar nl{QLatin1Char('\n')};
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static void child(QString const & arg, PasswordDialog & dlg)
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{
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std::string s_prog = su_prog.toStdString()
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, s_arg = arg.toStdString();
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char const * params[] = {
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s_prog.c_str()
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, "-c"
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, s_arg.c_str()
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, nullptr
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};
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setsid(); //session leader
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execvp(params[0], const_cast<char **>(params));
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//exec never returns in case of success
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QTextStream{stderr, QIODevice::WriteOnly} << QObject::tr("%1: Failed to exec '%2': %3\n").arg(app_master).arg(su_prog).arg(strerror(errno));
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exit(1);
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}
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static void stopChild(int & childPid
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, int & pwdFd
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, int & ret)
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{
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close(pwdFd);
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kill(childPid, SIGINT);
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int res, status;
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for (int cnt = 10; 0 == (res = waitpid(childPid, &status, WNOHANG)) && 0 < cnt; --cnt)
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QThread::msleep(100);
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if (0 == res)
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{
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kill(childPid, SIGKILL);
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ret = 1;
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} else
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{
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ret = WIFEXITED(status) ? WEXITSTATUS(status) : 1;
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}
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childPid = -1;
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}
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static int parent(int childPid, int pwdFd, PasswordDialog & dlg)
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{
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//set the FD as non-blocking
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if (0 != fcntl(pwdFd, F_SETFL, O_NONBLOCK))
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{
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("Failed to set non-block: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
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return 1;
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}
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FILE * pwd_f = fdopen(pwdFd, "r+");
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if (nullptr == pwd_f)
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{
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("Failed to fdopen: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
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return 1;
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}
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QTextStream child_str{pwd_f};
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int ret;
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QObject::connect(&dlg, &QDialog::finished, [&] (int result)
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{
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if (QDialog::Accepted == result)
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{
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child_str << dlg.password().append(nl);
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child_str.flush();
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} else
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{
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stopChild(childPid, pwdFd, ret);
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lxqtApp->quit();
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}
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});
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bool check_pwd = true;
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QString last_line;
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QScopedPointer<QSocketNotifier> pwd_watcher{new QSocketNotifier{pwdFd, QSocketNotifier::Read}};
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QObject::connect(pwd_watcher.data(), &QSocketNotifier::activated, [&]
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{
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QString line = child_str.readAll();
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if (line.isEmpty())
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{
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pwd_watcher.reset(nullptr);
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if (last_line.startsWith(QStringLiteral("%1:").arg(su_prog)))
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{
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pwd_watcher.reset(nullptr); //stop the notifications events
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stopChild(childPid, pwdFd, ret);
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("Child '%1' process failed!\n%2").arg(su_prog).arg(last_line), QMessageBox::Ok).exec();
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}
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lxqtApp->quit();
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} else
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{
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if (check_pwd)
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{
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//check only first output of child(su)
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check_pwd = false;
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if (!line.contains(nl) && line.endsWith(su_pwd_prompt_end))
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{
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//if now echo is turned off, su requests password struct termios tios;
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struct termios tios;
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Q_ASSERT(0 == tcgetattr(pwdFd, &tios));
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if (!(ECHO & tios.c_lflag))
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{
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dlg.show();
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return;
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}
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}
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}
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QTextStream{stderr, QIODevice::WriteOnly} << line;
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//assuming text oriented output
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QStringList lines = line.split(nl, QString::SkipEmptyParts);
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last_line = lines.isEmpty() ? QString() : lines.back();
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}
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});
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lxqtApp->exec();
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if (0 < childPid)
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{
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int res, status;
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res = waitpid(childPid, &status, 0);
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ret = (childPid == res && WIFEXITED(status)) ? WEXITSTATUS(status) : 1;
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}
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return ret;
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}
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int su(QStringList const & args, PasswordDialog & dlg)
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{
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int pid, fd;
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if (1 != args.size())
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("With %1 backend only one argument/command is supported!").arg(su_prog), QMessageBox::Ok).exec();
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else if (0 == (pid = forkpty(&fd, nullptr, nullptr, nullptr)))
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child(args[0], dlg); //never returns
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else if (-1 == pid)
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("Failed to fork: %1").arg(strerror(errno)), QMessageBox::Ok).exec();
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else
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return parent(pid, fd, dlg);
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return 1;
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}
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@ -0,0 +1,116 @@
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/* BEGIN_COMMON_COPYRIGHT_HEADER
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* (c)LGPL2+
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*
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* LXQt - a lightweight, Qt based, desktop toolset
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* http://lxqt.org
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*
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* Copyright: 2015 LXQt team
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* Authors:
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* Palo Kisa <palo.kisa@gmail.com>
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*
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* This program or library is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* END_COMMON_COPYRIGHT_HEADER */
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#include <LXQt/Application>
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#include "passworddialog.h"
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#include <QProcess>
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#include <QMessageBox>
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#include <QSocketNotifier>
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#include <QDebug>
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extern const QString sudo_prog;
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const QString sudo_prog{QStringLiteral(LXQTSUDO_SUDO)};
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const QString sudo_pwd_prompt{QStringLiteral("Password:\n")};
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int sudo(QStringList const & args, PasswordDialog & dlg)
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{
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QScopedPointer<QProcess> sudo{new QProcess};
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QObject::connect(&dlg, &QDialog::finished, [&sudo, &dlg] (int result)
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{
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if (QDialog::Accepted == result)
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{
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sudo->write(QByteArray{}.append(dlg.password().append('\n')));
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} else
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{
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sudo->terminate();
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if (!sudo->waitForFinished(1000))
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sudo->kill();
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}
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});
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//start background process -> sudo
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sudo->setProcessChannelMode(QProcess::ForwardedOutputChannel);
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sudo->setReadChannel(QProcess::StandardError);
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QString last_line;
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int ret;
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QObject::connect(sudo.data(), static_cast<void (QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished)
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, [&ret, &last_line, &dlg] (int exitCode, QProcess::ExitStatus exitStatus)
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{
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ret = QProcess::NormalExit == exitStatus ? exitCode : 255;
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if (0 != ret && last_line.startsWith(QStringLiteral("%1:").arg(sudo_prog)))
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QMessageBox(QMessageBox::Critical, dlg.windowTitle()
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, QObject::tr("Child '%1' process failed!\n%2").arg(sudo_prog).arg(last_line), QMessageBox::Ok).exec();
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lxqtApp->quit();
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});
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QObject::connect(sudo.data(), &QProcess::readyReadStandardError, [&sudo, &dlg, &last_line]
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{
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QByteArray err = sudo->readAllStandardError();
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if (sudo_pwd_prompt == err.constData())
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{
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dlg.show();
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return;
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}
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QTextStream{stderr, QIODevice::WriteOnly} << err;
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int nl_pos = err.lastIndexOf('\n');
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if (-1 == nl_pos)
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last_line += err;
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else
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{
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if (err.endsWith('\n'))
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err.remove(err.size() - 1, 1);
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nl_pos = err.lastIndexOf('\n');
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if (-1 != nl_pos)
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err.remove(0, nl_pos + 1);
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last_line = err;
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}
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});
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//forward all stdin to child
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QTextStream std_in{stdin, QIODevice::ReadOnly};
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QSocketNotifier stdin_watcher{0/*stdin*/, QSocketNotifier::Read};
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QObject::connect(&stdin_watcher, &QSocketNotifier::activated, [&std_in, &sudo]
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{
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QString line{std_in.readLine()};
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if (!std_in.atEnd())
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line += QLatin1Char('\n');
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sudo->write(line.toStdString().c_str());
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if (std_in.atEnd())
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sudo->closeWriteChannel();
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});
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sudo->start(sudo_prog, QStringList() << QStringLiteral("-S")
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<< QStringLiteral("-p") << sudo_pwd_prompt
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<< args);
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lxqtApp->exec();
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sudo->waitForFinished(-1);
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return ret;
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}
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