File indexing completed on 2024-04-21 03:53:58

 /*
     This file is part of the KDE project, module kdesu.
     SPDX-FileCopyrightText: 1999, 2000 Geert Jansen <jansen@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-only
 
     kcookie.cpp: KDE authentication cookies.
 */
 
 #include "kcookie_p.h"
 
 #include <ksu_debug.h>
 
 #include <QProcess>
 #include <QStandardPaths>
 #include <QString>
 #include <QStringList>
 
 extern int kdesuDebugArea();
 
 namespace KDESu
 {
 namespace KDESuPrivate
 {
 class KCookiePrivate
 {
 public:
     QByteArray display;
 #if HAVE_X11
     QByteArray displayAuth;
 #endif
 };
 
 KCookie::KCookie()
     : d(new KCookiePrivate)
 {
 #if HAVE_X11
     getXCookie();
 #endif
 }
 
 KCookie::~KCookie() = default;
 
 QByteArray KCookie::display() const
 {
     return d->display;
 }
 
 #if HAVE_X11
 QByteArray KCookie::displayAuth() const
 {
     return d->displayAuth;
 }
 #endif
 
 void KCookie::getXCookie()
 {
 #if HAVE_X11
     d->display = qgetenv("DISPLAY");
     if (d->display.isEmpty()) {
         // maybe we are on Wayland?
         d->display = qgetenv("WAYLAND_DISPLAY");
         if (!d->display.isEmpty()) {
             // don't go into the xauth code path
             return;
         }
     }
 #else
     d->display = qgetenv("QWS_DISPLAY");
 #endif
     if (d->display.isEmpty()) {
         qCCritical(KSU_LOG) << "[" << __FILE__ << ":" << __LINE__ << "] "
                             << "$DISPLAY is not set.";
         return;
     }
 #if HAVE_X11 // No need to mess with X Auth stuff
     QByteArray disp = d->display;
     if (disp.startsWith("localhost:")) { // krazy:exclude=strings
         disp.remove(0, 9);
     }
 
     const QString xauthExec = QStandardPaths::findExecutable(QStringLiteral("xauth"));
     if (xauthExec.isEmpty()) {
         qCCritical(KSU_LOG) << "[" << __FILE__ << ":" << __LINE__ << "] "
                             << "Could not run xauth, not found in path";
         return;
     }
 
     QProcess proc;
     proc.start(xauthExec, QStringList{QStringLiteral("list"), QString::fromUtf8(disp)});
     if (!proc.waitForStarted()) {
         qCCritical(KSU_LOG) << "[" << __FILE__ << ":" << __LINE__ << "] "
                             << "Could not run xauth. Found in path:" << xauthExec;
         return;
     }
     proc.waitForReadyRead(100);
 
     QByteArray output = proc.readLine().simplified();
     if (output.isEmpty()) {
         qCWarning(KSU_LOG) << "No X authentication info set for display" << d->display;
         return;
     }
 
     QList<QByteArray> lst = output.split(' ');
     if (lst.count() != 3) {
         qCCritical(KSU_LOG) << "[" << __FILE__ << ":" << __LINE__ << "] "
                             << "parse error.";
         return;
     }
     d->displayAuth = (lst[1] + ' ' + lst[2]);
     proc.waitForFinished(100); // give QProcess a chance to clean up gracefully
 #endif
 }
 
 } // namespace KDESuPrivate
 } // namespace KDESu