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authorMichele Calgaro <michele.calgaro@yahoo.it>2020-12-07 22:58:44 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2020-12-07 22:58:44 +0900
commit145abc15d57fb29701a12e8a14dcb9c1fd72e9be (patch)
treefbb4f2f737ec6f4e8a85bea5f2ca2257d20d7e22 /kdesktop/lock/main.cpp
parentd95494d97233919fa0b2eebf60759537b793e05b (diff)
downloadtdebase-145abc15d57fb29701a12e8a14dcb9c1fd72e9be.tar.gz
tdebase-145abc15d57fb29701a12e8a14dcb9c1fd72e9be.zip
Renaming of files in preparation for code style tools.
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'kdesktop/lock/main.cpp')
-rw-r--r--kdesktop/lock/main.cpp563
1 files changed, 563 insertions, 0 deletions
diff --git a/kdesktop/lock/main.cpp b/kdesktop/lock/main.cpp
new file mode 100644
index 000000000..f1407070c
--- /dev/null
+++ b/kdesktop/lock/main.cpp
@@ -0,0 +1,563 @@
+/* This file is part of the TDE project
+ Copyright (C) 1999 David Faure
+ Copyright (c) 2003 Oswald Buddenhagen <ossi@kde.org>
+ Copyright (c) 2010-2015 Timothy Pearson <kb9vqf@pearsoncomputing.net>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <config.h>
+
+#include "lockprocess.h"
+#include "main.h"
+#include "kdesktopsettings.h"
+
+#include <tqfileinfo.h>
+
+#include <tdecmdlineargs.h>
+#include <tdelocale.h>
+#include <tdeglobal.h>
+#include <kdebug.h>
+#include <tdeglobalsettings.h>
+#include <dcopref.h>
+#include <ksimpleconfig.h>
+#include <kstandarddirs.h>
+
+#include <tdmtsak.h>
+
+#include <stdlib.h>
+
+#if defined(Q_WS_X11) && defined(HAVE_XRENDER) && TQT_VERSION >= 0x030300
+#define COMPOSITE
+#endif
+
+#ifdef COMPOSITE
+# include <X11/Xlib.h>
+# include <X11/extensions/Xrender.h>
+# include <fixx11h.h>
+# include <dlfcn.h>
+#else
+# include <X11/Xlib.h>
+# include <fixx11h.h>
+#endif
+
+
+TQXLibWindowList trinity_desktop_lock_hidden_window_list;
+
+// [FIXME] Add GUI configuration checkboxes for these three settings (see kdesktoprc [ScreenSaver] UseUnmanagedLockWindows, DelaySaverStart, and UseTDESAK)
+bool trinity_desktop_lock_use_system_modal_dialogs = FALSE;
+bool trinity_desktop_lock_delay_screensaver_start = FALSE;
+bool trinity_desktop_lock_use_sak = FALSE;
+bool trinity_desktop_lock_hide_active_windows = FALSE;
+bool trinity_desktop_lock_hide_cancel_button = FALSE;
+bool trinity_desktop_lock_forced = FALSE;
+
+LockProcess* trinity_desktop_lock_process = NULL;
+
+bool signalled_forcelock;
+bool signalled_dontlock;
+bool signalled_securedialog;
+bool signalled_blank;
+bool signalled_run;
+bool in_internal_mode = FALSE;
+
+bool argb_visual = FALSE;
+pid_t kdesktop_pid = -1;
+bool trinity_desktop_lock_settings_initialized = FALSE;
+
+static void sigusr1_handler(int)
+{
+ signalled_forcelock = TRUE;
+}
+
+static void sigusr2_handler(int)
+{
+ signalled_dontlock = TRUE;
+}
+
+static void sigusr3_handler(int)
+{
+ signalled_securedialog = TRUE;
+}
+
+static void sigusr4_handler(int)
+{
+ signalled_blank = TRUE;
+}
+
+static void sigusr5_handler(int)
+{
+ signalled_run = TRUE;
+}
+
+static int trapXErrors(Display *, XErrorEvent *)
+{
+ return 0;
+}
+
+bool MyApp::x11EventFilter( XEvent *ev )
+{
+ if (ev->type == ButtonPress || ev->type == ButtonRelease || ev->type == MotionNotify) {
+ emit mouseInteraction(ev);
+ }
+ if (ev->type == XKeyPress || ev->type == ButtonPress) {
+ emit activity();
+ }
+ else if (ev->type == MotionNotify) {
+ time_t tick = time( 0 );
+ if (tick != lastTick) {
+ lastTick = tick;
+ emit activity();
+ }
+ }
+ else if (ev->type == MapNotify) {
+ // HACK
+ // Hide all tooltips and notification windows
+ XMapEvent map_event = ev->xmap;
+ XWindowAttributes childAttr;
+ Window childTransient;
+ if (XGetWindowAttributes(map_event.display, map_event.window, &childAttr) && XGetTransientForHint(map_event.display, map_event.window, &childTransient)) {
+ if((childAttr.map_state == IsViewable) && (childAttr.override_redirect) && (childTransient)) {
+ if (!trinity_desktop_lock_hidden_window_list.contains(map_event.window)) {
+ trinity_desktop_lock_hidden_window_list.append(map_event.window);
+ }
+ XLowerWindow(map_event.display, map_event.window);
+ XFlush(map_event.display);
+ }
+ }
+ }
+ else if (ev->type == VisibilityNotify) {
+ // HACK
+ // Hide all tooltips and notification windows
+ XVisibilityEvent visibility_event = ev->xvisibility;
+ XWindowAttributes childAttr;
+ Window childTransient;
+ if ((visibility_event.state == VisibilityUnobscured) || (visibility_event.state == VisibilityPartiallyObscured)) {
+ if (XGetWindowAttributes(visibility_event.display, visibility_event.window, &childAttr) && XGetTransientForHint(visibility_event.display, visibility_event.window, &childTransient)) {
+ if((childAttr.map_state == IsViewable) && (childAttr.override_redirect) && (childTransient)) {
+ if (!trinity_desktop_lock_hidden_window_list.contains(visibility_event.window)) {
+ trinity_desktop_lock_hidden_window_list.append(visibility_event.window);
+ }
+ XLowerWindow(visibility_event.display, visibility_event.window);
+ XFlush(visibility_event.display);
+ }
+ }
+ }
+ }
+ else if (ev->type == CreateNotify) {
+ // HACK
+ // Close all tooltips and notification windows
+ XCreateWindowEvent create_event = ev->xcreatewindow;
+ XWindowAttributes childAttr;
+ Window childTransient;
+
+ // XGetWindowAttributes may generate BadWindow errors, so make sure they are silently ignored
+ int (*oldHandler)(Display *, XErrorEvent *);
+ oldHandler = XSetErrorHandler(trapXErrors);
+ if (XGetWindowAttributes(create_event.display, create_event.window, &childAttr) && XGetTransientForHint(create_event.display, create_event.window, &childTransient)) {
+ if ((childAttr.override_redirect) && (childTransient)) {
+ if (!trinity_desktop_lock_hidden_window_list.contains(create_event.window)) {
+ trinity_desktop_lock_hidden_window_list.append(create_event.window);
+ }
+ XLowerWindow(create_event.display, create_event.window);
+ XFlush(create_event.display);
+ }
+ }
+ XSetErrorHandler(oldHandler);
+ }
+ else if (ev->type == DestroyNotify) {
+ XDestroyWindowEvent destroy_event = ev->xdestroywindow;
+ if (trinity_desktop_lock_hidden_window_list.contains(destroy_event.window)) {
+ trinity_desktop_lock_hidden_window_list.remove(destroy_event.window);
+ }
+ }
+#if 0
+ else if (ev->type == CreateNotify) {
+ // HACK
+ // Close all tooltips and notification windows
+ XCreateWindowEvent create_event = ev->xcreatewindow;
+ XWindowAttributes childAttr;
+ Window childTransient;
+ if (XGetWindowAttributes(create_event.display, create_event.window, &childAttr) && XGetTransientForHint(create_event.display, create_event.window, &childTransient)) {
+ if ((childAttr.override_redirect) && (childTransient)) {
+ XDestroyWindow(create_event.display, create_event.window);
+ }
+ }
+ }
+#endif
+ return TDEApplication::x11EventFilter( ev );
+}
+
+
+static TDECmdLineOptions options[] =
+{
+ { "forcelock", I18N_NOOP("Force session locking"), 0 },
+ { "dontlock", I18N_NOOP("Only start screensaver"), 0 },
+ { "securedialog", I18N_NOOP("Launch the secure dialog"), 0 },
+ { "blank", I18N_NOOP("Only use the blank screensaver"), 0 },
+ { "internal <pid>", I18N_NOOP("TDE internal command for background process loading"), 0 },
+ TDECmdLineLastOption
+};
+
+void restore_hidden_override_redirect_windows() {
+ TQXLibWindowList::iterator it;
+ for (it = trinity_desktop_lock_hidden_window_list.begin(); it != trinity_desktop_lock_hidden_window_list.end(); ++it) {
+ Window win = *it;
+ XRaiseWindow(tqt_xdisplay(), win);
+ }
+}
+
+// -----------------------------------------------------------------------------
+
+int main( int argc, char **argv )
+{
+ TDELocale::setMainCatalogue("kdesktop");
+
+ TDECmdLineArgs::init( argc, argv, "kdesktop_lock", I18N_NOOP("KDesktop Locker"), I18N_NOOP("Session Locker for KDesktop"), "2.1" );
+ TDECmdLineArgs::addCmdLineOptions( options );
+ TDECmdLineArgs *args = TDECmdLineArgs::parsedArgs();
+
+ putenv(strdup("SESSION_MANAGER="));
+
+ TDEApplication::disableAutoDcopRegistration(); // not needed
+
+ XSetErrorHandler(trapXErrors);
+
+ MyApp* app = NULL;
+
+ while (1 == 1) {
+ sigset_t new_mask;
+ sigset_t orig_mask;
+
+ // Block reception of all signals in this thread
+ sigfillset(&new_mask);
+ sigprocmask(SIG_BLOCK, &new_mask, NULL);
+
+ signalled_forcelock = FALSE;
+ signalled_dontlock = FALSE;
+ signalled_securedialog = FALSE;
+ signalled_blank = FALSE;
+ signalled_run = FALSE;
+
+ int kdesktop_screen_number = 0;
+ int starting_screen = 0;
+
+ bool child = false;
+ int parent_connection = 0; // socket to the parent saver
+ TQValueList<int> child_sockets;
+
+ if (TDEGlobalSettings::isMultiHead()) {
+ Display *dpy = XOpenDisplay(NULL);
+ if (! dpy) {
+ fprintf(stderr,
+ "%s: FATAL ERROR: couldn't open display '%s'\n",
+ argv[0], XDisplayName(NULL));
+ exit(1);
+ }
+
+ int number_of_screens = ScreenCount(dpy);
+ starting_screen = kdesktop_screen_number = DefaultScreen(dpy);
+ int pos;
+ TQCString display_name = XDisplayString(dpy);
+ XCloseDisplay(dpy);
+ kdDebug() << "screen " << number_of_screens << " " << kdesktop_screen_number << " " << display_name << " " << starting_screen << endl;
+ dpy = 0;
+
+ if ((pos = display_name.findRev('.')) != -1) {
+ display_name.remove(pos, 10);
+ }
+
+ TQCString env;
+ if (number_of_screens != 1) {
+ for (int i = 0; i < number_of_screens; i++) {
+ if (i != starting_screen) {
+ int fd[2];
+ if (pipe(fd)) {
+ perror("pipe");
+ break;
+ }
+ if (fork() == 0) {
+ child = true;
+ kdesktop_screen_number = i;
+ parent_connection = fd[0];
+ // break here because we are the child process, we don't
+ // want to fork() anymore
+ break;
+ }
+ else {
+ child_sockets.append(fd[1]);
+ }
+ }
+ }
+
+ env.sprintf("DISPLAY=%s.%d", display_name.data(),
+ kdesktop_screen_number);
+ kdDebug() << "env " << env << endl;
+
+ if (putenv(strdup(env.data()))) {
+ fprintf(stderr,
+ "%s: WARNING: unable to set DISPLAY environment variable\n",
+ argv[0]);
+ perror("putenv()");
+ }
+ }
+ }
+
+ if (!app) {
+#ifdef COMPOSITE
+ app = new MyApp(TDEApplication::openX11RGBADisplay());
+ argb_visual = app->isX11CompositionAvailable();
+#else
+ app = new MyApp;
+#endif
+ }
+
+ TDELockFile lock(locateLocal("tmp", TQString("kdesktop_lock_lockfile.%1").arg(getenv("DISPLAY"))));
+ lock.setStaleTime(0);
+ TDELockFile::LockResult lockRet = lock.lock();
+ if (lockRet != TDELockFile::LockOK) {
+ // Terminate existing (stale) process if needed
+ int pid;
+ TQString hostName;
+ TQString appName;
+ if (lock.getLockInfo(pid, hostName, appName)) {
+ // Verify that the pid in question is an instance of kdesktop_lock
+ int len;
+ char procpath[PATH_MAX];
+ char fullpath[PATH_MAX];
+#if defined(__dilos__)
+ snprintf(procpath, sizeof(procpath), "/proc/%d/path/a.out", pid);
+#elif defined(__FreeBSD__) || defined (__DragonFly__)
+ snprintf(procpath, sizeof(procpath), "/compat/linux/proc/%d/exe", pid);
+#else /* Linux way as default */
+ snprintf(procpath, sizeof(procpath), "/proc/%d/exe", pid);
+#endif
+ len = readlink( procpath, fullpath, sizeof(fullpath) );
+ if (len >= 0) {
+ fullpath[len] = 0;
+ TQFileInfo fileInfo(fullpath);
+ if (fileInfo.baseName() == "kdesktop_lock") {
+ // Verify that pid in question is owned by current user before killing it
+ uid_t current_uid = geteuid();
+
+ struct stat info;
+ if (lstat(procpath, &info) == 0) {
+ if (info.st_uid == current_uid) {
+ kill(pid, SIGKILL);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ // Force a relock as a stale lockfile or process may have been dealt with above
+ if (!lock.isLocked()) {
+ lockRet = lock.lock(TDELockFile::LockNoBlock | TDELockFile::LockForce);
+ }
+
+ kdDebug() << "app " << kdesktop_screen_number << " " << starting_screen << " " << child << " " << child_sockets.count() << " " << parent_connection << endl;
+ app->disableSessionManagement();
+ TDEGlobal::locale()->insertCatalogue("libdmctl");
+
+ struct stat st;
+ KSimpleConfig* tdmconfig;
+ if( stat( KDE_CONFDIR "/tdm/tdmdistrc" , &st ) == 0) {
+ tdmconfig = new KSimpleConfig( TQString::fromLatin1( KDE_CONFDIR "/tdm/tdmdistrc" ));
+ }
+ else {
+ tdmconfig = new KSimpleConfig( TQString::fromLatin1( KDE_CONFDIR "/tdm/tdmrc" ));
+ }
+ tdmconfig->setGroup("X-:*-Greeter");
+
+ // Create new LockProcess, which also spawns threads inheriting the blocked signal mask
+ trinity_desktop_lock_process = new LockProcess;
+
+ // Unblock reception of all signals in this thread
+ sigprocmask(SIG_UNBLOCK, &new_mask, NULL);
+
+ // Start loading core functions, such as the desktop wallpaper interface
+ app->processEvents();
+
+ if (args->isSet( "internal" )) {
+ kdesktop_pid = atoi(args->getOption( "internal" ));
+ struct sigaction act;
+
+ in_internal_mode = TRUE;
+
+ // handle SIGUSR1
+ act.sa_handler= sigusr1_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGUSR1);
+ act.sa_flags = 0;
+ sigaction(SIGUSR1, &act, 0L);
+ // handle SIGUSR2
+ act.sa_handler= sigusr2_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGUSR2);
+ act.sa_flags = 0;
+ sigaction(SIGUSR2, &act, 0L);
+ // handle SIGWINCH (an ersatz SIGUSR3)
+ act.sa_handler= sigusr3_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGWINCH);
+ act.sa_flags = 0;
+ sigaction(SIGWINCH, &act, 0L);
+ // handle SIGTTIN (an ersatz SIGUSR4)
+ act.sa_handler= sigusr4_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGTTIN);
+ act.sa_flags = 0;
+ sigaction(SIGTTIN, &act, 0L);
+ // handle SIGTTOU (an ersatz SIGUSR5)
+ act.sa_handler= sigusr5_handler;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGTTOU);
+ act.sa_flags = 0;
+ sigaction(SIGTTOU, &act, 0L);
+
+ // initialize the signal masks
+ sigemptyset(&new_mask);
+ sigaddset(&new_mask,SIGUSR1);
+ sigaddset(&new_mask,SIGUSR2);
+ sigaddset(&new_mask,SIGWINCH);
+ sigaddset(&new_mask,SIGTTIN);
+ sigaddset(&new_mask,SIGTTOU);
+
+ while (signalled_run == FALSE) {
+ // let kdesktop know the saver process is ready
+ if (kill(kdesktop_pid, SIGTTIN) < 0) {
+ // The controlling kdesktop process probably died. Commit suicide...
+ return 12;
+ }
+
+ // Get root window attributes
+ XWindowAttributes rootAttr;
+ XGetWindowAttributes(tqt_xdisplay(), RootWindow(tqt_xdisplay(), tqt_xscreen()), &rootAttr);
+
+ // Disable reception of all X11 events on the root window
+ XSelectInput( tqt_xdisplay(), tqt_xrootwin(), 0 );
+ app->processEvents();
+
+ // wait for SIGUSR1, SIGUSR2, SIGWINCH, SIGTTIN, or SIGTTOU
+ sigprocmask(SIG_BLOCK, &new_mask, &orig_mask);
+ if (signalled_run != TRUE) {
+ sigsuspend(&orig_mask);
+ }
+ sigprocmask(SIG_UNBLOCK, &new_mask, NULL);
+
+ // Reenable reception of X11 events on the root window
+ XSelectInput( tqt_xdisplay(), tqt_xrootwin(), rootAttr.your_event_mask );
+ }
+
+ // Block reception of all signals in this thread
+ sigprocmask(SIG_BLOCK, &new_mask, NULL);
+ }
+
+ // (re)load settings here so that they actually reflect reality
+ // we need to read from the right rc file - possibly taking screen number in account
+ if (!trinity_desktop_lock_settings_initialized) {
+ KDesktopSettings::instance("kdesktoprc");
+ trinity_desktop_lock_settings_initialized = true;
+ }
+ else {
+ KDesktopSettings::self()->readConfig();
+ }
+ trinity_desktop_lock_use_system_modal_dialogs = !KDesktopSettings::useUnmanagedLockWindows();
+ trinity_desktop_lock_delay_screensaver_start = KDesktopSettings::delaySaverStart();
+ if (trinity_desktop_lock_use_system_modal_dialogs) {
+#ifdef BUILD_TSAK
+ trinity_desktop_lock_use_sak = tdmconfig->readBoolEntry("UseSAK", false) && KDesktopSettings::useTDESAK();
+#else
+ trinity_desktop_lock_use_sak = false;
+#endif
+ }
+ else {
+ trinity_desktop_lock_use_sak = false; // If SAK is enabled with unmanaged windows, the SAK dialog will never close and will "burn in" the screen
+ trinity_desktop_lock_delay_screensaver_start = false; // If trinity_desktop_lock_delay_screensaver_start is true with unmanaged windows, the lock dialog may never appear
+ }
+ trinity_desktop_lock_hide_active_windows = KDesktopSettings::hideActiveWindowsFromSaver();
+ trinity_desktop_lock_hide_cancel_button = KDesktopSettings::hideCancelButton();
+
+ delete tdmconfig;
+
+ if (args->isSet( "forcelock" ) || (signalled_forcelock == TRUE)) {
+ trinity_desktop_lock_forced = TRUE;
+ }
+
+ trinity_desktop_lock_process->init(child, (args->isSet( "blank" ) || (signalled_blank == TRUE)));
+ if (!child) {
+ trinity_desktop_lock_process->setChildren(child_sockets);
+ }
+ else {
+ trinity_desktop_lock_process->setParent(parent_connection);
+ }
+
+ bool rt;
+ if( (((!child) && (args->isSet( "forcelock" ))) || (signalled_forcelock == TRUE))) {
+ rt = trinity_desktop_lock_process->lock();
+ }
+ else if( child || (args->isSet( "dontlock" ) || (signalled_dontlock == TRUE))) {
+ rt = trinity_desktop_lock_process->dontLock();
+ }
+ else if( child || (args->isSet( "securedialog" ) || (signalled_securedialog == TRUE))) {
+ int retcode = tde_sak_verify_calling_process();
+ if (retcode == 0) {
+ rt = trinity_desktop_lock_process->runSecureDialog();
+ }
+ else {
+ return 1;
+ }
+ }
+ else {
+ rt = trinity_desktop_lock_process->defaultSave();
+ }
+ if (!rt) {
+ return 0;
+ }
+
+ if (in_internal_mode == FALSE) {
+ trinity_desktop_lock_hidden_window_list.clear();
+ int ret = app->exec();
+ restore_hidden_override_redirect_windows();
+ return ret;
+ }
+ else {
+ if (kill(kdesktop_pid, 0) < 0) {
+ // The controlling kdesktop process probably died. Commit suicide...
+ return 12;
+ }
+ trinity_desktop_lock_hidden_window_list.clear();
+ app->exec();
+ restore_hidden_override_redirect_windows();
+ if (kill(kdesktop_pid, SIGUSR1) < 0) {
+ // The controlling kdesktop process probably died. Commit suicide...
+ return 12;
+ }
+
+ delete trinity_desktop_lock_process;
+ trinity_desktop_lock_process = NULL;
+
+ // FIXME
+ // We should not have to return (restart) at all,
+ // but it seems that some X11 connections are left active,
+ // preventing the lock process from restarting properly in the while() loop above.
+ return 0;
+ }
+ }
+}
+
+#include "main.moc"