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401 lines
14 KiB
401 lines
14 KiB
/*****************************************************************
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ksmserver - the KDE session management server
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Copyright (C) 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2005 Lubos Lunak <l.lunak@kde.org>
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relatively small extensions by Oswald Buddenhagen <ob6@inf.tu-dresden.de>
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some code taken from the dcopserver (part of the KDE libraries), which is
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Copyright (c) 1999 Matthias Ettrich <ettrich@kde.org>
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Copyright (c) 1999 Preston Brown <pbrown@kde.org>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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******************************************************************/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include "server.h"
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include <unistd.h>
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#include <tqtimer.h>
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#include <kconfig.h>
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#include <kdebug.h>
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#include <twinmodule.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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/*
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* Legacy session management
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*/
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const int WM_SAVE_YOURSELF_TIMEOUT = 4000;
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static WindowMap* windowMapPtr = 0;
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static Atom wm_save_yourself = None;
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static Atom wm_protocols = None;
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static Atom wm_client_leader = None;
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static int winsErrorHandler(Display *, XErrorEvent *ev)
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{
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if (windowMapPtr) {
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WindowMap::Iterator it = windowMapPtr->find(ev->resourceid);
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if (it != windowMapPtr->end())
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(*it).type = SM_ERROR;
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}
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return 0;
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}
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void KSMServer::performLegacySessionSave()
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{
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kdDebug( 1218 ) << "Saving legacy session apps" << endl;
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// Setup error handler
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legacyWindows.clear();
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windowMapPtr = &legacyWindows;
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XErrorHandler oldHandler = XSetErrorHandler(winsErrorHandler);
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// Compute set of leader windows that need legacy session management
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// and determine which style (WM_COMMAND or WM_SAVE_YOURSELF)
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KWinModule module;
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if( wm_save_yourself == (Atom)None ) {
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Atom atoms[ 3 ];
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const char* const names[]
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= { "WM_SAVE_YOURSELF", "WM_PROTOCOLS", "WM_CLIENT_LEADER" };
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XInternAtoms( qt_xdisplay(), const_cast< char** >( names ), 3,
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False, atoms );
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wm_save_yourself = atoms[ 0 ];
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wm_protocols = atoms[ 1 ];
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wm_client_leader = atoms[ 2 ];
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}
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for ( TQValueList<WId>::ConstIterator it = module.windows().begin();
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it != module.windows().end(); ++it) {
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WId leader = windowWmClientLeader( *it );
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if (!legacyWindows.contains(leader) && windowSessionId( *it, leader ).isEmpty()) {
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SMType wtype = SM_WMCOMMAND;
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int nprotocols = 0;
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Atom *protocols = 0;
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if( XGetWMProtocols(qt_xdisplay(), leader, &protocols, &nprotocols)) {
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for (int i=0; i<nprotocols; i++)
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if (protocols[i] == wm_save_yourself) {
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wtype = SM_WMSAVEYOURSELF;
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break;
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}
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XFree((void*) protocols);
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}
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SMData data;
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data.type = wtype;
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XClassHint classHint;
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if( XGetClassHint( qt_xdisplay(), leader, &classHint ) ) {
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data.wmclass1 = classHint.res_name;
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data.wmclass2 = classHint.res_class;
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XFree( classHint.res_name );
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XFree( classHint.res_class );
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}
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legacyWindows.insert(leader, data);
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}
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}
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// Open fresh display for sending WM_SAVE_YOURSELF
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XSync(qt_xdisplay(), False);
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Display *newdisplay = XOpenDisplay(DisplayString(qt_xdisplay()));
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if (!newdisplay) {
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windowMapPtr = NULL;
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XSetErrorHandler(oldHandler);
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return;
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}
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WId root = DefaultRootWindow(newdisplay);
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XGrabKeyboard(newdisplay, root, False,
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GrabModeAsync, GrabModeAsync, CurrentTime);
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XGrabPointer(newdisplay, root, False, Button1Mask|Button2Mask|Button3Mask,
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GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
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// Send WM_SAVE_YOURSELF messages
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XEvent ev;
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int awaiting_replies = 0;
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for (WindowMap::Iterator it = legacyWindows.begin(); it != legacyWindows.end(); ++it) {
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if ( (*it).type == SM_WMSAVEYOURSELF ) {
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WId w = it.key();
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awaiting_replies += 1;
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memset(&ev, 0, sizeof(ev));
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ev.xclient.type = ClientMessage;
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ev.xclient.window = w;
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ev.xclient.message_type = wm_protocols;
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ev.xclient.format = 32;
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ev.xclient.data.l[0] = wm_save_yourself;
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ev.xclient.data.l[1] = GET_QT_X_TIME();
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XSelectInput(newdisplay, w, PropertyChangeMask|StructureNotifyMask);
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XSendEvent(newdisplay, w, False, 0, &ev);
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}
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}
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// Wait for change in WM_COMMAND with timeout
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XFlush(newdisplay);
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TQTime start = TQTime::currentTime();
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while (awaiting_replies > 0) {
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if (XPending(newdisplay)) {
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/* Process pending event */
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XNextEvent(newdisplay, &ev);
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if ( ( ev.xany.type == UnmapNotify ) ||
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( ev.xany.type == PropertyNotify && ev.xproperty.atom == XA_WM_COMMAND ) ) {
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WindowMap::Iterator it = legacyWindows.find( ev.xany.window );
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if ( it != legacyWindows.end() && (*it).type != SM_WMCOMMAND ) {
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awaiting_replies -= 1;
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if ( (*it).type != SM_ERROR )
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(*it).type = SM_WMCOMMAND;
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}
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}
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} else {
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/* Check timeout */
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int msecs = start.elapsed();
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if (msecs >= WM_SAVE_YOURSELF_TIMEOUT)
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break;
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/* Wait for more events */
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fd_set fds;
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FD_ZERO(&fds);
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int fd = ConnectionNumber(newdisplay);
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FD_SET(fd, &fds);
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struct timeval tmwait;
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tmwait.tv_sec = (WM_SAVE_YOURSELF_TIMEOUT - msecs) / 1000;
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tmwait.tv_usec = ((WM_SAVE_YOURSELF_TIMEOUT - msecs) % 1000) * 1000;
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::select(fd+1, &fds, NULL, &fds, &tmwait);
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}
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}
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// Terminate work in new display
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XAllowEvents(newdisplay, ReplayPointer, CurrentTime);
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XAllowEvents(newdisplay, ReplayKeyboard, CurrentTime);
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XSync(newdisplay, False);
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XCloseDisplay(newdisplay);
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// Restore old error handler
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XSync(qt_xdisplay(), False);
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XSetErrorHandler(oldHandler);
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for (WindowMap::Iterator it = legacyWindows.begin(); it != legacyWindows.end(); ++it) {
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if ( (*it).type != SM_ERROR) {
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WId w = it.key();
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(*it).wmCommand = windowWmCommand(w);
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(*it).wmClientMachine = windowWmClientMachine(w);
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}
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}
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kdDebug( 1218 ) << "Done saving " << legacyWindows.count() << " legacy session apps" << endl;
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}
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/*!
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Stores legacy session management data
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*/
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void KSMServer::storeLegacySession( KConfig* config )
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{
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// Write LegacySession data
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config->deleteGroup( "Legacy" + sessionGroup );
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KConfigGroupSaver saver( config, "Legacy" + sessionGroup );
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int count = 0;
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for (WindowMap::ConstIterator it = legacyWindows.begin(); it != legacyWindows.end(); ++it) {
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if ( (*it).type != SM_ERROR) {
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if( excludeApps.contains( (*it).wmclass1.lower())
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|| excludeApps.contains( (*it).wmclass2.lower()) || (*it).wmCommand[0] == "compiz" || (*it).wmCommand[0] == "beryl" || (*it).wmCommand[0] == "aquamarine" || (*it).wmCommand[0] == "beryl-manager" || (*it).wmCommand[0] == "beryl-settings" || (*it).wmCommand[0] == "kde-window-decorator" || (*it).wmCommand[0] == "emerald")
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continue;
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if ( !(*it).wmCommand.isEmpty() && !(*it).wmClientMachine.isEmpty() ) {
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count++;
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TQString n = TQString::number(count);
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config->writeEntry( TQString("command")+n, (*it).wmCommand );
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config->writeEntry( TQString("clientMachine")+n, (*it).wmClientMachine );
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}
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}
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}
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config->writeEntry( "count", count );
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}
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/*!
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Restores legacy session management data (i.e. restart applications)
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*/
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void KSMServer::restoreLegacySession( KConfig* config )
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{
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if( config->hasGroup( "Legacy" + sessionGroup )) {
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KConfigGroupSaver saver( config, "Legacy" + sessionGroup );
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restoreLegacySessionInternal( config );
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} else if( wm == "twin" ) { // backwards comp. - get it from twinrc
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KConfigGroupSaver saver( config, sessionGroup );
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int count = config->readNumEntry( "count", 0 );
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for ( int i = 1; i <= count; i++ ) {
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TQString n = TQString::number(i);
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if ( config->readEntry( TQString("program")+n ) != wm )
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continue;
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TQStringList restartCommand =
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config->readListEntry( TQString("restartCommand")+n );
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for( TQStringList::ConstIterator it = restartCommand.begin();
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it != restartCommand.end();
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++it ) {
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if( (*it) == "-session" ) {
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++it;
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if( it != restartCommand.end()) {
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KConfig cfg( "session/" + wm + "_" + (*it), true );
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cfg.setGroup( "LegacySession" );
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restoreLegacySessionInternal( &cfg, ' ' );
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}
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}
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}
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}
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}
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}
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void KSMServer::restoreLegacySessionInternal( KConfig* config, char sep )
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{
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int count = config->readNumEntry( "count" );
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for ( int i = 1; i <= count; i++ ) {
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TQString n = TQString::number(i);
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TQStringList wmCommand = config->readListEntry( TQString("command")+n, sep );
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if( wmCommand.isEmpty())
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continue;
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if( isWM( wmCommand.first()))
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continue;
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startApplication( wmCommand,
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config->readEntry( TQString("clientMachine")+n ),
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config->readEntry( TQString("userId")+n ));
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}
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}
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static TQCString getQCStringProperty(WId w, Atom prop)
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{
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Atom type;
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int format, status;
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unsigned long nitems = 0;
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unsigned long extra = 0;
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unsigned char *data = 0;
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TQCString result = "";
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status = XGetWindowProperty( qt_xdisplay(), w, prop, 0, 10000,
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FALSE, XA_STRING, &type, &format,
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&nitems, &extra, &data );
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if ( status == Success) {
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if( data )
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result = (char*)data;
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XFree(data);
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}
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return result;
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}
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static TQStringList getQStringListProperty(WId w, Atom prop)
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{
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Atom type;
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int format, status;
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unsigned long nitems = 0;
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unsigned long extra = 0;
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unsigned char *data = 0;
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TQStringList result;
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status = XGetWindowProperty( qt_xdisplay(), w, prop, 0, 10000,
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FALSE, XA_STRING, &type, &format,
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&nitems, &extra, &data );
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if ( status == Success) {
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if (!data)
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return result;
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for (int i=0; i<(int)nitems; i++) {
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result << TQString::tqfromLatin1( (const char*)data + i );
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while(data[i]) i++;
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}
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XFree(data);
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}
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return result;
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}
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TQStringList KSMServer::windowWmCommand(WId w)
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{
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TQStringList ret = getQStringListProperty(w, XA_WM_COMMAND);
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// hacks here
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if( ret.count() == 1 ) {
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TQString command = ret.first();
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// Mozilla is launched using wrapper scripts, so it's launched using "mozilla",
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// but the actual binary is "mozilla-bin" or "<path>/mozilla-bin", and that's what
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// will be also in WM_COMMAND - using this "mozilla-bin" doesn't work at all though
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if( command.endsWith( "mozilla-bin" ))
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return TQStringList() << "mozilla";
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if( command.endsWith( "firefox-bin" ))
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return TQStringList() << "firefox";
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if( command.endsWith( "thunderbird-bin" ))
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return TQStringList() << "thunderbird";
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if( command.endsWith( "sunbird-bin" ))
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return TQStringList() << "sunbird";
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}
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return ret;
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}
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TQString KSMServer::windowWmClientMachine(WId w)
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{
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TQCString result = getQCStringProperty(w, XA_WM_CLIENT_MACHINE);
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if (result.isEmpty()) {
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result = "localhost";
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} else {
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// special name for the local machine (localhost)
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char hostnamebuf[80];
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if (gethostname (hostnamebuf, sizeof hostnamebuf) >= 0) {
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hostnamebuf[sizeof(hostnamebuf)-1] = 0;
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if (result == hostnamebuf)
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result = "localhost";
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if(char *dot = strchr(hostnamebuf, '.')) {
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*dot = '\0';
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if(result == hostnamebuf)
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result = "localhost";
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}
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}
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}
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return TQString::tqfromLatin1(result);
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}
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WId KSMServer::windowWmClientLeader(WId w)
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{
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Atom type;
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int format, status;
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unsigned long nitems = 0;
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unsigned long extra = 0;
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unsigned char *data = 0;
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Window result = w;
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status = XGetWindowProperty( qt_xdisplay(), w, wm_client_leader, 0, 10000,
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FALSE, XA_WINDOW, &type, &format,
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&nitems, &extra, &data );
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if (status == Success ) {
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if (data && nitems > 0)
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result = *((Window*) data);
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XFree(data);
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}
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return result;
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}
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/*
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Returns sessionId for this client,
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taken either from its window or from the leader window.
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*/
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extern Atom qt_sm_client_id;
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TQCString KSMServer::windowSessionId(WId w, WId leader)
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{
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TQCString result = getQCStringProperty(w, qt_sm_client_id);
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if (result.isEmpty() && leader != (WId)None && leader != w)
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result = getQCStringProperty(leader, qt_sm_client_id);
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return result;
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}
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