pkg://kdebase-3.4.2.tar.bz2:22466433/
kdebase-3.4.2/
ksmserver/server.cpp
downloads
/*****************************************************************
ksmserver - the KDE session management server
Copyright (C) 2000 Matthias Ettrich <ettrich@kde.org>
relatively small extensions by Oswald Buddenhagen <ob6@inf.tu-dresden.de>
some code taken from the dcopserver (part of the KDE libraries), which is
Copyright (c) 1999 Matthias Ettrich <ettrich@kde.org>
Copyright (c) 1999 Preston Brown <pbrown@kde.org>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
******************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pwd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
#include <string.h>
#include <assert.h>
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#include <qfile.h>
#include <qtextstream.h>
#include <qdatastream.h>
#include <qptrstack.h>
#include <qpushbutton.h>
#include <qmessagebox.h>
#include <qguardedptr.h>
#include <qtimer.h>
#include <klocale.h>
#include <kglobal.h>
#include <kconfig.h>
#include <kstandarddirs.h>
#include <unistd.h>
#include <kapplication.h>
#include <kstaticdeleter.h>
#include <ktempfile.h>
#include <kprocess.h>
#include <dcopclient.h>
#include <dcopref.h>
#include <kwinmodule.h>
#include "server.h"
#include "global.h"
#include "shutdown.h"
#include "server.moc"
#include <kdebug.h>
const int XNone = None;
#undef None
#include <knotifyclient.h>
#include <qregexp.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include <dmctl.h>
KSMServer* the_server = 0;
KSMClient::KSMClient( SmsConn conn)
{
smsConn = conn;
id = 0;
resetState();
}
KSMClient::~KSMClient()
{
for ( SmProp* prop = properties.first(); prop; prop = properties.next() )
SmFreeProperty( prop );
if (id) free((void*)id);
}
SmProp* KSMClient::property( const char* name ) const
{
for ( QPtrListIterator<SmProp> it( properties ); it.current(); ++it ) {
if ( !qstrcmp( it.current()->name, name ) )
return it.current();
}
return 0;
}
void KSMClient::resetState()
{
saveYourselfDone = false;
pendingInteraction = false;
waitForPhase2 = false;
wasPhase2 = false;
}
/*
* This fakes SmsGenerateClientID() in case we can't read our own hostname.
* In this case SmsGenerateClientID() returns NULL, but we really want a
* client ID, so we fake one.
*/
static KStaticDeleter<QString> smy_addr;
char * safeSmsGenerateClientID( SmsConn /*c*/ )
{
// Causes delays with misconfigured network :-/.
// char *ret = SmsGenerateClientID(c);
char* ret = NULL;
if (!ret) {
static QString *my_addr = 0;
if (!my_addr) {
// qWarning("Can't get own host name. Your system is severely misconfigured\n");
smy_addr.setObject(my_addr,new QString);
/* Faking our IP address, the 0 below is "unknown" address format
(1 would be IP, 2 would be DEC-NET format) */
char hostname[ 256 ];
if( gethostname( hostname, 255 ) != 0 )
my_addr->sprintf("0%.8x", KApplication::random());
else {
// create some kind of hash for the hostname
int addr[ 4 ] = { 0, 0, 0, 0 };
int pos = 0;
for( unsigned int i = 0;
i < strlen( hostname );
++i, ++pos )
addr[ pos % 4 ] += hostname[ i ];
*my_addr = "0";
for( int i = 0;
i < 4;
++i )
*my_addr += QString::number( addr[ i ], 16 );
}
}
/* Needs to be malloc(), to look the same as libSM */
ret = (char *)malloc(1+my_addr->length()+13+10+4+1 + /*safeness*/ 10);
static int sequence = 0;
if (ret == NULL)
return NULL;
sprintf(ret, "1%s%.13ld%.10d%.4d", my_addr->latin1(), (long)time(NULL),
getpid(), sequence);
sequence = (sequence + 1) % 10000;
}
return ret;
}
void KSMClient::registerClient( const char* previousId )
{
id = previousId;
if ( !id )
id = safeSmsGenerateClientID( smsConn );
SmsRegisterClientReply( smsConn, (char*) id );
SmsSaveYourself( smsConn, SmSaveLocal, false, SmInteractStyleNone, false );
SmsSaveComplete( smsConn );
the_server->clientRegistered( previousId );
}
QString KSMClient::program() const
{
SmProp* p = property( SmProgram );
if ( !p || qstrcmp( p->type, SmARRAY8) || p->num_vals < 1)
return QString::null;
return QString::fromLatin1( (const char*) p->vals[0].value );
}
QStringList KSMClient::restartCommand() const
{
QStringList result;
SmProp* p = property( SmRestartCommand );
if ( !p || qstrcmp( p->type, SmLISTofARRAY8) || p->num_vals < 1)
return result;
for ( int i = 0; i < p->num_vals; i++ )
result +=QString::fromLatin1( (const char*) p->vals[i].value );
return result;
}
QStringList KSMClient::discardCommand() const
{
QStringList result;
SmProp* p = property( SmDiscardCommand );
if ( !p || qstrcmp( p->type, SmLISTofARRAY8) || p->num_vals < 1)
return result;
for ( int i = 0; i < p->num_vals; i++ )
result +=QString::fromLatin1( (const char*) p->vals[i].value );
return result;
}
int KSMClient::restartStyleHint() const
{
SmProp* p = property( SmRestartStyleHint );
if ( !p || qstrcmp( p->type, SmCARD8) || p->num_vals < 1)
return SmRestartIfRunning;
return *((int*)p->vals[0].value);
}
QString KSMClient::userId() const
{
SmProp* p = property( SmUserID );
if ( !p || qstrcmp( p->type, SmARRAY8) || p->num_vals < 1)
return QString::null;
return QString::fromLatin1( (const char*) p->vals[0].value );
}
/*! Utility function to execute a command on the local machine. Used
* to restart applications.
*/
void KSMServer::startApplication( QStringList command, const QString& clientMachine,
const QString& userId )
{
if ( command.isEmpty() )
return;
if ( !userId.isEmpty()) {
struct passwd* pw = getpwuid( getuid());
if( pw != NULL && userId != QString::fromLocal8Bit( pw->pw_name )) {
command.prepend( "--" );
command.prepend( userId );
command.prepend( "-u" );
command.prepend( "kdesu" );
}
}
if ( !clientMachine.isEmpty() && clientMachine != "localhost" ) {
command.prepend( clientMachine );
command.prepend( xonCommand ); // "xon" by default
}
int n = command.count();
QCString app = command[0].latin1();
QValueList<QCString> argList;
for ( int i=1; i < n; i++)
argList.append( QCString(command[i].latin1()));
DCOPRef( launcher ).send( "exec_blind", app, DCOPArg( argList, "QValueList<QCString>" ) );
}
/*! Utility function to execute a command on the local machine. Used
* to discard session data
*/
void KSMServer::executeCommand( const QStringList& command )
{
if ( command.isEmpty() )
return;
KProcess proc;
for ( QStringList::ConstIterator it = command.begin();
it != command.end(); ++it )
proc << (*it).latin1();
proc.start( KProcess::Block );
}
IceAuthDataEntry *authDataEntries = 0;
static KTempFile *remAuthFile = 0;
static IceListenObj *listenObjs = 0;
int numTransports = 0;
static bool only_local = 0;
static Bool HostBasedAuthProc ( char* /*hostname*/)
{
if (only_local)
return true;
else
return false;
}
Status KSMRegisterClientProc (
SmsConn /* smsConn */,
SmPointer managerData,
char * previousId
)
{
KSMClient* client = (KSMClient*) managerData;
client->registerClient( previousId );
return 1;
}
void KSMInteractRequestProc (
SmsConn /* smsConn */,
SmPointer managerData,
int dialogType
)
{
the_server->interactRequest( (KSMClient*) managerData, dialogType );
}
void KSMInteractDoneProc (
SmsConn /* smsConn */,
SmPointer managerData,
Bool cancelShutdown
)
{
the_server->interactDone( (KSMClient*) managerData, cancelShutdown );
}
void KSMSaveYourselfRequestProc (
SmsConn smsConn ,
SmPointer /* managerData */,
int saveType,
Bool shutdown,
int interactStyle,
Bool fast,
Bool global
)
{
if ( shutdown ) {
the_server->shutdown( fast ?
KApplication::ShutdownConfirmNo :
KApplication::ShutdownConfirmDefault,
KApplication::ShutdownTypeDefault,
KApplication::ShutdownModeDefault );
} else if ( !global ) {
SmsSaveYourself( smsConn, saveType, false, interactStyle, fast );
SmsSaveComplete( smsConn );
}
// else checkpoint only, ksmserver does not yet support this
// mode. Will come for KDE 3.1
}
void KSMSaveYourselfPhase2RequestProc (
SmsConn /* smsConn */,
SmPointer managerData
)
{
the_server->phase2Request( (KSMClient*) managerData );
}
void KSMSaveYourselfDoneProc (
SmsConn /* smsConn */,
SmPointer managerData,
Bool success
)
{
the_server->saveYourselfDone( (KSMClient*) managerData, success );
}
void KSMCloseConnectionProc (
SmsConn smsConn,
SmPointer managerData,
int count,
char ** reasonMsgs
)
{
the_server->deleteClient( ( KSMClient* ) managerData );
if ( count )
SmFreeReasons( count, reasonMsgs );
IceConn iceConn = SmsGetIceConnection( smsConn );
SmsCleanUp( smsConn );
IceSetShutdownNegotiation (iceConn, False);
IceCloseConnection( iceConn );
}
void KSMSetPropertiesProc (
SmsConn /* smsConn */,
SmPointer managerData,
int numProps,
SmProp ** props
)
{
KSMClient* client = ( KSMClient* ) managerData;
for ( int i = 0; i < numProps; i++ ) {
SmProp *p = client->property( props[i]->name );
if ( p ) {
client->properties.removeRef( p );
SmFreeProperty( p );
}
client->properties.append( props[i] );
if ( !qstrcmp( props[i]->name, SmProgram ) )
the_server->clientSetProgram( client );
}
if ( numProps )
free( props );
}
void KSMDeletePropertiesProc (
SmsConn /* smsConn */,
SmPointer managerData,
int numProps,
char ** propNames
)
{
KSMClient* client = ( KSMClient* ) managerData;
for ( int i = 0; i < numProps; i++ ) {
SmProp *p = client->property( propNames[i] );
if ( p ) {
client->properties.removeRef( p );
SmFreeProperty( p );
}
}
}
void KSMGetPropertiesProc (
SmsConn smsConn,
SmPointer managerData
)
{
KSMClient* client = ( KSMClient* ) managerData;
SmProp** props = new SmProp*[client->properties.count()];
int i = 0;
for ( SmProp* prop = client->properties.first(); prop; prop = client->properties.next() )
props[i++] = prop;
SmsReturnProperties( smsConn, i, props );
delete [] props;
}
class KSMListener : public QSocketNotifier
{
public:
KSMListener( IceListenObj obj )
: QSocketNotifier( IceGetListenConnectionNumber( obj ),
QSocketNotifier::Read, 0, 0)
{
listenObj = obj;
}
IceListenObj listenObj;
};
class KSMConnection : public QSocketNotifier
{
public:
KSMConnection( IceConn conn )
: QSocketNotifier( IceConnectionNumber( conn ),
QSocketNotifier::Read, 0, 0 )
{
iceConn = conn;
}
IceConn iceConn;
};
/* for printing hex digits */
static void fprintfhex (FILE *fp, unsigned int len, char *cp)
{
static const char hexchars[] = "0123456789abcdef";
for (; len > 0; len--, cp++) {
unsigned char s = *cp;
putc(hexchars[s >> 4], fp);
putc(hexchars[s & 0x0f], fp);
}
}
/*
* We use temporary files which contain commands to add/remove entries from
* the .ICEauthority file.
*/
static void write_iceauth (FILE *addfp, FILE *removefp, IceAuthDataEntry *entry)
{
fprintf (addfp,
"add %s \"\" %s %s ",
entry->protocol_name,
entry->network_id,
entry->auth_name);
fprintfhex (addfp, entry->auth_data_length, entry->auth_data);
fprintf (addfp, "\n");
fprintf (removefp,
"remove protoname=%s protodata=\"\" netid=%s authname=%s\n",
entry->protocol_name,
entry->network_id,
entry->auth_name);
}
#define MAGIC_COOKIE_LEN 16
Status SetAuthentication_local (int count, IceListenObj *listenObjs)
{
int i;
for (i = 0; i < count; i ++) {
char *prot = IceGetListenConnectionString(listenObjs[i]);
if (!prot) continue;
char *host = strchr(prot, '/');
char *sock = 0;
if (host) {
*host=0;
host++;
sock = strchr(host, ':');
if (sock) {
*sock = 0;
sock++;
}
}
kdDebug( 1218 ) << "KSMServer: SetAProc_loc: conn " << (unsigned)i << ", prot=" << prot << ", file=" << sock << endl;
if (sock && !strcmp(prot, "local")) {
chmod(sock, 0700);
}
IceSetHostBasedAuthProc (listenObjs[i], HostBasedAuthProc);
free(prot);
}
return 1;
}
Status SetAuthentication (int count, IceListenObj *listenObjs,
IceAuthDataEntry **authDataEntries)
{
KTempFile addAuthFile;
addAuthFile.setAutoDelete(true);
remAuthFile = new KTempFile;
remAuthFile->setAutoDelete(true);
if ((addAuthFile.status() != 0) || (remAuthFile->status() != 0))
return 0;
if ((*authDataEntries = (IceAuthDataEntry *) malloc (
count * 2 * sizeof (IceAuthDataEntry))) == NULL)
return 0;
for (int i = 0; i < numTransports * 2; i += 2) {
(*authDataEntries)[i].network_id =
IceGetListenConnectionString (listenObjs[i/2]);
(*authDataEntries)[i].protocol_name = (char *) "ICE";
(*authDataEntries)[i].auth_name = (char *) "MIT-MAGIC-COOKIE-1";
(*authDataEntries)[i].auth_data =
IceGenerateMagicCookie (MAGIC_COOKIE_LEN);
(*authDataEntries)[i].auth_data_length = MAGIC_COOKIE_LEN;
(*authDataEntries)[i+1].network_id =
IceGetListenConnectionString (listenObjs[i/2]);
(*authDataEntries)[i+1].protocol_name = (char *) "XSMP";
(*authDataEntries)[i+1].auth_name = (char *) "MIT-MAGIC-COOKIE-1";
(*authDataEntries)[i+1].auth_data =
IceGenerateMagicCookie (MAGIC_COOKIE_LEN);
(*authDataEntries)[i+1].auth_data_length = MAGIC_COOKIE_LEN;
write_iceauth (addAuthFile.fstream(), remAuthFile->fstream(), &(*authDataEntries)[i]);
write_iceauth (addAuthFile.fstream(), remAuthFile->fstream(), &(*authDataEntries)[i+1]);
IceSetPaAuthData (2, &(*authDataEntries)[i]);
IceSetHostBasedAuthProc (listenObjs[i/2], HostBasedAuthProc);
}
addAuthFile.close();
remAuthFile->close();
QString iceAuth = KGlobal::dirs()->findExe("iceauth");
if (iceAuth.isEmpty())
{
qWarning("KSMServer: could not find iceauth");
return 0;
}
KProcess p;
p << iceAuth << "source" << addAuthFile.name();
p.start(KProcess::Block);
return (1);
}
/*
* Free up authentication data.
*/
void FreeAuthenticationData(int count, IceAuthDataEntry *authDataEntries)
{
/* Each transport has entries for ICE and XSMP */
if (only_local)
return;
for (int i = 0; i < count * 2; i++) {
free (authDataEntries[i].network_id);
free (authDataEntries[i].auth_data);
}
free (authDataEntries);
QString iceAuth = KGlobal::dirs()->findExe("iceauth");
if (iceAuth.isEmpty())
{
qWarning("KSMServer: could not find iceauth");
return;
}
KProcess p;
p << iceAuth << "source" << remAuthFile->name();
p.start(KProcess::Block);
delete remAuthFile;
remAuthFile = 0;
}
static int Xio_ErrorHandler( Display * )
{
qWarning("ksmserver: Fatal IO error: client killed");
// Don't do anything that might require the X connection
if (the_server)
{
KSMServer *server = the_server;
the_server = 0;
server->cleanUp();
// Don't delete server!!
}
exit(0); // Don't report error, it's not our fault.
}
static void sighandler(int sig)
{
if (sig == SIGHUP) {
signal(SIGHUP, sighandler);
return;
}
if (the_server)
{
KSMServer *server = the_server;
the_server = 0;
server->cleanUp();
delete server;
}
if (kapp)
kapp->quit();
//::exit(0);
}
void KSMWatchProc ( IceConn iceConn, IcePointer client_data, Bool opening, IcePointer* watch_data)
{
KSMServer* ds = ( KSMServer*) client_data;
if (opening) {
*watch_data = (IcePointer) ds->watchConnection( iceConn );
}
else {
ds->removeConnection( (KSMConnection*) *watch_data );
}
}
static Status KSMNewClientProc ( SmsConn conn, SmPointer manager_data,
unsigned long* mask_ret, SmsCallbacks* cb, char** failure_reason_ret)
{
*failure_reason_ret = 0;
void* client = ((KSMServer*) manager_data )->newClient( conn );
cb->register_client.callback = KSMRegisterClientProc;
cb->register_client.manager_data = client;
cb->interact_request.callback = KSMInteractRequestProc;
cb->interact_request.manager_data = client;
cb->interact_done.callback = KSMInteractDoneProc;
cb->interact_done.manager_data = client;
cb->save_yourself_request.callback = KSMSaveYourselfRequestProc;
cb->save_yourself_request.manager_data = client;
cb->save_yourself_phase2_request.callback = KSMSaveYourselfPhase2RequestProc;
cb->save_yourself_phase2_request.manager_data = client;
cb->save_yourself_done.callback = KSMSaveYourselfDoneProc;
cb->save_yourself_done.manager_data = client;
cb->close_connection.callback = KSMCloseConnectionProc;
cb->close_connection.manager_data = client;
cb->set_properties.callback = KSMSetPropertiesProc;
cb->set_properties.manager_data = client;
cb->delete_properties.callback = KSMDeletePropertiesProc;
cb->delete_properties.manager_data = client;
cb->get_properties.callback = KSMGetPropertiesProc;
cb->get_properties.manager_data = client;
*mask_ret = SmsRegisterClientProcMask |
SmsInteractRequestProcMask |
SmsInteractDoneProcMask |
SmsSaveYourselfRequestProcMask |
SmsSaveYourselfP2RequestProcMask |
SmsSaveYourselfDoneProcMask |
SmsCloseConnectionProcMask |
SmsSetPropertiesProcMask |
SmsDeletePropertiesProcMask |
SmsGetPropertiesProcMask;
return 1;
}
#ifdef HAVE__ICETRANSNOLISTEN
extern "C" int _IceTransNoListen(const char * protocol);
#endif
KSMServer::KSMServer( const QString& windowManager, bool _only_local )
: DCOPObject("ksmserver"), sessionGroup( "" )
{
the_server = this;
clean = false;
wm = windowManager;
shutdownType = KApplication::ShutdownTypeNone;
state = Idle;
dialogActive = false;
saveSession = false;
wmPhase1WaitingCount = 0;
KConfig* config = KGlobal::config();
config->setGroup("General" );
clientInteracting = 0;
xonCommand = config->readEntry( "xonCommand", "xon" );
connect( &knotifyTimeoutTimer, SIGNAL( timeout()), SLOT( knotifyTimeout()));
only_local = _only_local;
#ifdef HAVE__ICETRANSNOLISTEN
if (only_local)
_IceTransNoListen("tcp");
#else
only_local = false;
#endif
launcher = KApplication::launcher();
char errormsg[256];
if (!SmsInitialize ( (char*) KSMVendorString, (char*) KSMReleaseString,
KSMNewClientProc,
(SmPointer) this,
HostBasedAuthProc, 256, errormsg ) ) {
qWarning("KSMServer: could not register XSM protocol");
}
if (!IceListenForConnections (&numTransports, &listenObjs,
256, errormsg))
{
qWarning("KSMServer: Error listening for connections: %s", errormsg);
qWarning("KSMServer: Aborting.");
exit(1);
}
{
// publish available transports.
QCString fName = QFile::encodeName(locateLocal("socket", "KSMserver"));
QCString display = ::getenv("DISPLAY");
// strip the screen number from the display
display.replace(QRegExp("\\.[0-9]+$"), "");
int i;
while( (i = display.find(':')) >= 0)
display[i] = '_';
fName += "_"+display;
FILE *f;
f = ::fopen(fName.data(), "w+");
if (!f)
{
qWarning("KSMServer: can't open %s: %s", fName.data(), strerror(errno));
qWarning("KSMServer: Aborting.");
exit(1);
}
char* session_manager = IceComposeNetworkIdList(numTransports, listenObjs);
fprintf(f, "%s\n%i\n", session_manager, getpid());
fclose(f);
setenv( "SESSION_MANAGER", session_manager, true );
// Pass env. var to kdeinit.
DCOPRef( launcher ).send( "setLaunchEnv", "SESSION_MANAGER", (const char*) session_manager );
}
if (only_local) {
if (!SetAuthentication_local(numTransports, listenObjs))
qFatal("KSMSERVER: authentication setup failed.");
} else {
if (!SetAuthentication(numTransports, listenObjs, &authDataEntries))
qFatal("KSMSERVER: authentication setup failed.");
}
IceAddConnectionWatch (KSMWatchProc, (IcePointer) this);
listener.setAutoDelete( true );
KSMListener* con;
for ( int i = 0; i < numTransports; i++) {
con = new KSMListener( listenObjs[i] );
listener.append( con );
connect( con, SIGNAL( activated(int) ), this, SLOT( newConnection(int) ) );
}
signal(SIGHUP, sighandler);
signal(SIGTERM, sighandler);
signal(SIGINT, sighandler);
signal(SIGPIPE, SIG_IGN);
connect( &protectionTimer, SIGNAL( timeout() ), this, SLOT( protectionTimeout() ) );
connect( &restoreTimer, SIGNAL( timeout() ), this, SLOT( restoreNextInternal() ) );
connect( kapp, SIGNAL( shutDown() ), this, SLOT( cleanUp() ) );
}
KSMServer::~KSMServer()
{
the_server = 0;
cleanUp();
}
void KSMServer::cleanUp()
{
if (clean) return;
clean = true;
IceFreeListenObjs (numTransports, listenObjs);
QCString fName = QFile::encodeName(locateLocal("socket", "KSMserver"));
QCString display = ::getenv("DISPLAY");
// strip the screen number from the display
display.replace(QRegExp("\\.[0-9]+$"), "");
int i;
while( (i = display.find(':')) >= 0)
display[i] = '_';
fName += "_"+display;
::unlink(fName.data());
FreeAuthenticationData(numTransports, authDataEntries);
signal(SIGTERM, SIG_DFL);
signal(SIGINT, SIG_DFL);
DM().shutdown( shutdownType, shutdownMode, bootOption );
}
void* KSMServer::watchConnection( IceConn iceConn )
{
KSMConnection* conn = new KSMConnection( iceConn );
connect( conn, SIGNAL( activated(int) ), this, SLOT( processData(int) ) );
return (void*) conn;
}
void KSMServer::removeConnection( KSMConnection* conn )
{
delete conn;
}
/*!
Called from our IceIoErrorHandler
*/
void KSMServer::ioError( IceConn /*iceConn*/ )
{
}
void KSMServer::processData( int /*socket*/ )
{
IceConn iceConn = ((KSMConnection*)sender())->iceConn;
IceProcessMessagesStatus status = IceProcessMessages( iceConn, 0, 0 );
if ( status == IceProcessMessagesIOError ) {
IceSetShutdownNegotiation( iceConn, False );
QPtrListIterator<KSMClient> it ( clients );
while ( it.current() &&SmsGetIceConnection( it.current()->connection() ) != iceConn )
++it;
if ( it.current() ) {
SmsConn smsConn = it.current()->connection();
deleteClient( it.current() );
SmsCleanUp( smsConn );
}
(void) IceCloseConnection( iceConn );
}
}
KSMClient* KSMServer::newClient( SmsConn conn )
{
KSMClient* client = new KSMClient( conn );
clients.append( client );
return client;
}
void KSMServer::deleteClient( KSMClient* client )
{
if ( clients.findRef( client ) == -1 ) // paranoia
return;
clients.removeRef( client );
if ( client == clientInteracting ) {
clientInteracting = 0;
handlePendingInteractions();
}
delete client;
if ( state == Shutdown || state == Checkpoint )
completeShutdownOrCheckpoint();
if ( state == Killing || state == Killing2 )
completeKilling();
}
void KSMServer::newConnection( int /*socket*/ )
{
IceAcceptStatus status;
IceConn iceConn = IceAcceptConnection( ((KSMListener*)sender())->listenObj, &status);
IceSetShutdownNegotiation( iceConn, False );
IceConnectStatus cstatus;
while ((cstatus = IceConnectionStatus (iceConn))==IceConnectPending) {
(void) IceProcessMessages( iceConn, 0, 0 );
}
if (cstatus != IceConnectAccepted) {
if (cstatus == IceConnectIOError)
kdDebug( 1218 ) << "IO error opening ICE Connection!" << endl;
else
kdDebug( 1218 ) << "ICE Connection rejected!" << endl;
(void )IceCloseConnection (iceConn);
}
}
void KSMServer::shutdown( KApplication::ShutdownConfirm confirm,
KApplication::ShutdownType sdtype, KApplication::ShutdownMode sdmode )
{
if ( state != Idle || dialogActive )
return;
KConfig *config = KGlobal::config();
config->reparseConfiguration(); // config may have changed in the KControl module
config->setGroup("General" );
excludeApps = QStringList::split( ':', config->readEntry( "excludeApps" ).lower());
bool logoutConfirmed =
(confirm == KApplication::ShutdownConfirmYes) ? false :
(confirm == KApplication::ShutdownConfirmNo) ? true :
!config->readBoolEntry( "confirmLogout", true );
bool maysd = false;
if (config->readBoolEntry( "offerShutdown", true ) && DM().canShutdown())
maysd = true;
if (!maysd) {
if (sdtype != KApplication::ShutdownTypeNone &&
sdtype != KApplication::ShutdownTypeDefault &&
logoutConfirmed)
return; /* unsupported fast shutdown */
sdtype = KApplication::ShutdownTypeNone;
} else if (sdtype == KApplication::ShutdownTypeDefault)
sdtype = (KApplication::ShutdownType)
config->readNumEntry( "shutdownType", (int)KApplication::ShutdownTypeNone );
if (sdmode == KApplication::ShutdownModeDefault)
sdmode = KApplication::ShutdownModeInteractive;
dialogActive = true;
QString bopt;
if ( !logoutConfirmed ) {
KSMShutdownFeedback::start(); // make the screen gray
logoutConfirmed =
KSMShutdownDlg::confirmShutdown( maysd, sdtype, bopt );
// ###### We can't make the screen remain gray while talking to the apps,
// because this prevents interaction ("do you want to save", etc.)
// TODO: turn the feedback widget into a list of apps to be closed,
// with an indicator of the current status for each.
KSMShutdownFeedback::stop(); // make the screen become normal again
}
if ( logoutConfirmed ) {
shutdownType = sdtype;
shutdownMode = sdmode;
bootOption = bopt;
// shall we save the session on logout?
saveSession = ( config->readEntry( "loginMode", "restorePreviousLogout" ) == "restorePreviousLogout" );
if ( saveSession )
sessionGroup = QString("Session: ") + SESSION_PREVIOUS_LOGOUT;
// Set the real desktop background to black so that exit looks
// clean regardless of what was on "our" desktop.
kapp->desktop()->setBackgroundColor( Qt::black );
state = Shutdown;
wmPhase1WaitingCount = 0;
saveType = saveSession?SmSaveBoth:SmSaveGlobal;
#ifndef NO_LEGACY_SESSION_MANAGEMENT
performLegacySessionSave();
#endif
startProtection();
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
c->resetState();
// Whoever came with the idea of phase 2 got it backwards
// unfortunately. Window manager should be the very first
// one saving session data, not the last one, as possible
// user interaction during session save may alter
// window positions etc.
// Moreover, KWin's focus stealing prevention would lead
// to undesired effects while session saving (dialogs
// wouldn't be activated), so it needs be assured that
// KWin will turn it off temporarily before any other
// user interaction takes place.
// Therefore, make sure the WM finishes its phase 1
// before others a chance to change anything.
// KWin will check if the session manager is ksmserver,
// and if yes it will save in phase 1 instead of phase 2.
if( isWM( c )) {
++wmPhase1WaitingCount;
SmsSaveYourself( c->connection(), saveType,
true, SmInteractStyleAny, false );
}
}
if( wmPhase1WaitingCount == 0 ) { // no WM, simply start them all
for ( KSMClient* c = clients.first(); c; c = clients.next() )
SmsSaveYourself( c->connection(), saveType,
true, SmInteractStyleAny, false );
}
if ( clients.isEmpty() )
completeShutdownOrCheckpoint();
}
dialogActive = false;
}
QString KSMServer::currentSession()
{
if ( sessionGroup.startsWith( "Session: " ) )
return sessionGroup.mid( 9 );
return ""; // empty, not null, since used for KConfig::setGroup
}
void KSMServer::saveCurrentSession()
{
if ( state != Idle || dialogActive )
return;
if ( currentSession().isEmpty() || currentSession() == SESSION_PREVIOUS_LOGOUT )
sessionGroup = QString("Session: ") + SESSION_BY_USER;
state = Checkpoint;
wmPhase1WaitingCount = 0;
saveType = SmSaveLocal;
saveSession = true;
#ifndef NO_LEGACY_SESSION_MANAGEMENT
performLegacySessionSave();
#endif
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
c->resetState();
if( isWM( c )) {
++wmPhase1WaitingCount;
SmsSaveYourself( c->connection(), saveType, false, SmInteractStyleNone, false );
}
}
if( wmPhase1WaitingCount == 0 ) {
for ( KSMClient* c = clients.first(); c; c = clients.next() )
SmsSaveYourself( c->connection(), saveType, false, SmInteractStyleNone, false );
}
if ( clients.isEmpty() )
completeShutdownOrCheckpoint();
}
void KSMServer::saveCurrentSessionAs( QString session )
{
if ( state != Idle || dialogActive )
return;
sessionGroup = "Session: " + session;
saveCurrentSession();
}
// callbacks
void KSMServer::saveYourselfDone( KSMClient* client, bool success )
{
if ( state == Idle ) {
// State saving when it's not shutdown or checkpoint. Probably
// a shutdown was cancelled and the client is finished saving
// only now. Discard the saved state in order to avoid
// the saved data building up.
QStringList discard = client->discardCommand();
if( !discard.isEmpty())
executeCommand( discard );
return;
}
if ( success ) {
client->saveYourselfDone = true;
completeShutdownOrCheckpoint();
} else {
// fake success to make KDE's logout not block with broken
// apps. A perfect ksmserver would display a warning box at
// the very end.
client->saveYourselfDone = true;
completeShutdownOrCheckpoint();
}
startProtection();
if( isWM( client ) && !client->wasPhase2 && wmPhase1WaitingCount > 0 ) {
--wmPhase1WaitingCount;
// WM finished its phase1, save the rest
if( wmPhase1WaitingCount == 0 ) {
for ( KSMClient* c = clients.first(); c; c = clients.next() )
if( !isWM( c ))
SmsSaveYourself( c->connection(), saveType, saveType != SmSaveLocal,
saveType != SmSaveLocal ? SmInteractStyleAny : SmInteractStyleNone,
false );
}
}
}
void KSMServer::interactRequest( KSMClient* client, int /*dialogType*/ )
{
if ( state == Shutdown )
client->pendingInteraction = true;
else
SmsInteract( client->connection() );
handlePendingInteractions();
}
void KSMServer::interactDone( KSMClient* client, bool cancelShutdown_ )
{
if ( client != clientInteracting )
return; // should not happen
clientInteracting = 0;
if ( cancelShutdown_ )
cancelShutdown( client );
else
handlePendingInteractions();
}
void KSMServer::phase2Request( KSMClient* client )
{
client->waitForPhase2 = true;
client->wasPhase2 = true;
completeShutdownOrCheckpoint();
if( isWM( client ) && wmPhase1WaitingCount > 0 ) {
--wmPhase1WaitingCount;
// WM finished its phase1 and requests phase2, save the rest
if( wmPhase1WaitingCount == 0 ) {
for ( KSMClient* c = clients.first(); c; c = clients.next() )
if( !isWM( c ))
SmsSaveYourself( c->connection(), saveType, saveType != SmSaveLocal,
saveType != SmSaveLocal ? SmInteractStyleAny : SmInteractStyleNone,
false );
}
}
}
void KSMServer::handlePendingInteractions()
{
if ( clientInteracting )
return;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
if ( c->pendingInteraction ) {
clientInteracting = c;
c->pendingInteraction = false;
break;
}
}
if ( clientInteracting ) {
endProtection();
SmsInteract( clientInteracting->connection() );
} else {
startProtection();
}
}
void KSMServer::cancelShutdown( KSMClient* c )
{
kdDebug( 1218 ) << "cancelShutdown: client " << c->program() << "(" << c->clientId() << ")" << endl;
clientInteracting = 0;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
SmsShutdownCancelled( c->connection() );
if( c->saveYourselfDone ) {
// Discard also saved state.
QStringList discard = c->discardCommand();
if( !discard.isEmpty())
executeCommand( discard );
}
}
state = Idle;
}
/*
Internal protection slot, invoked when clients do not react during
shutdown.
*/
void KSMServer::protectionTimeout()
{
if ( ( state != Shutdown && state != Checkpoint ) || clientInteracting )
return;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
if ( !c->saveYourselfDone && !c->waitForPhase2 ) {
kdDebug( 1218 ) << "protectionTimeout: client " << c->program() << "(" << c->clientId() << ")" << endl;
c->saveYourselfDone = true;
}
}
completeShutdownOrCheckpoint();
startProtection();
}
void KSMServer::completeShutdownOrCheckpoint()
{
if ( state != Shutdown && state != Checkpoint )
return;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
if ( !c->saveYourselfDone && !c->waitForPhase2 )
return; // not done yet
}
// do phase 2
bool waitForPhase2 = false;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
if ( !c->saveYourselfDone && c->waitForPhase2 ) {
c->waitForPhase2 = false;
SmsSaveYourselfPhase2( c->connection() );
waitForPhase2 = true;
}
}
if ( waitForPhase2 )
return;
if ( saveSession )
storeSession();
else
discardSession();
if ( state == Shutdown ) {
bool waitForKNotify = true;
if( !kapp->dcopClient()->connectDCOPSignal( "knotify", "",
"notifySignal(QString,QString,QString,QString,QString,int,int,int,int)",
"ksmserver", "notifySlot(QString,QString,QString,QString,QString,int,int,int,int)", false )) {
waitForKNotify = false;
}
if( !kapp->dcopClient()->connectDCOPSignal( "knotify", "",
"playingFinished(int,int)",
"ksmserver", "logoutSoundFinished(int,int)", false )) {
waitForKNotify = false;
}
// event() can return -1 if KNotifyClient short-circuits and avoids KNotify
logoutSoundEvent = KNotifyClient::event( 0, "exitkde" ); // KDE says good bye
if( logoutSoundEvent <= 0 )
waitForKNotify = false;
if( waitForKNotify ) {
state = WaitingForKNotify;
knotifyTimeoutTimer.start( 20000, true );
return;
}
startKilling();
} else if ( state == Checkpoint ) {
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
SmsSaveComplete( c->connection());
}
state = Idle;
}
}
void KSMServer::startKilling()
{
knotifyTimeoutTimer.stop();
// kill all clients
state = Killing;
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
kdDebug( 1218 ) << "completeShutdown: client " << c->program() << "(" << c->clientId() << ")" << endl;
if (c->wasPhase2)
continue;
SmsDie( c->connection() );
}
kdDebug( 1218 ) << " We killed all clients. We have now clients.count()=" <<
clients.count() << endl;
completeKilling();
QTimer::singleShot( 4000, this, SLOT( timeoutQuit() ) );
}
void KSMServer::completeKilling()
{
kdDebug( 1218 ) << "KSMServer::completeKilling clients.count()=" <<
clients.count() << endl;
if ( state != Killing && state != Killing2 ) {
// kdWarning() << "Not Killing !!! state=" << state << endl;
return;
}
if ( clients.isEmpty() ) {
kapp->quit();
} else {
if( state == Killing ) {
for (KSMClient *c = clients.first(); c; c = clients.next()) {
if (! c->wasPhase2)
return;
}
// the wm was not killed yet, do it
for (KSMClient *c = clients.first(); c; c = clients.next()) {
SmsDie( c->connection() );
}
}
else {
for (KSMClient *c = clients.first(); c; c = clients.next()) {
if (c->wasPhase2)
return;
}
// only clients from first phase of killing remain, don't time out
// second time just because of them
}
}
}
// called when KNotify performs notification for logout (not when sound is finished though)
void KSMServer::notifySlot(QString event ,QString app,QString,QString,QString,int present,int,int,int)
{
if( state != WaitingForKNotify )
return;
if( event != "exitkde" || app != "ksmserver" )
return;
if( present & KNotifyClient::Sound ) // logoutSoundFinished() will be called
return;
startKilling();
}
// This is stupid. The normal DCOP signal connected to notifySlot() above should be simply
// emitted in KNotify only after the sound is finished playing.
void KSMServer::logoutSoundFinished( int event, int )
{
if( state != WaitingForKNotify )
return;
if( event != logoutSoundEvent )
return;
startKilling();
}
void KSMServer::knotifyTimeout()
{
if( state != WaitingForKNotify )
return;
startKilling();
}
void KSMServer::timeoutQuit()
{
state = Killing2;
bool kill_phase2 = false;
for (KSMClient *c = clients.first(); c; c = clients.next()) {
if (c->wasPhase2) {
kill_phase2 = true;
SmsDie( c->connection() );
} else {
kdWarning( 1218 ) << "SmsDie timeout, client " << c->program() << "(" << c->clientId() << ")" << endl;
}
}
if( !kill_phase2 )
kapp->quit();
QTimer::singleShot( 4000, kapp, SLOT( quit() ) );
}
void KSMServer::discardSession()
{
KConfig* config = KGlobal::config();
config->setGroup( sessionGroup );
int count = config->readNumEntry( "count", 0 );
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
QStringList discardCommand = c->discardCommand();
if ( discardCommand.isEmpty())
continue;
// check that non of the old clients used the exactly same
// discardCommand before we execute it. This used to be the
// case up to KDE and Qt < 3.1
int i = 1;
while ( i <= count &&
config->readPathListEntry( QString("discardCommand") + QString::number(i) ) != discardCommand )
i++;
if ( i <= count )
executeCommand( discardCommand );
}
}
void KSMServer::storeSession()
{
KConfig* config = KGlobal::config();
config->setGroup( sessionGroup );
int count = config->readNumEntry( "count" );
for ( int i = 1; i <= count; i++ ) {
QStringList discardCommand = config->readPathListEntry( QString("discardCommand") + QString::number(i) );
if ( discardCommand.isEmpty())
continue;
// check that non of the new clients uses the exactly same
// discardCommand before we execute it. This used to be the
// case up to KDE and Qt < 3.1
KSMClient* c = clients.first();
while ( c && discardCommand != c->discardCommand() )
c = clients.next();
if ( c )
continue;
executeCommand( discardCommand );
}
config->deleteGroup( sessionGroup ); //### does not work with global config object...
config->setGroup( sessionGroup );
count = 0;
if ( !wm.isEmpty() ) {
// put the wm first
for ( KSMClient* c = clients.first(); c; c = clients.next() )
if ( c->program() == wm ) {
clients.prepend( clients.take() );
break;
}
}
for ( KSMClient* c = clients.first(); c; c = clients.next() ) {
int restartHint = c->restartStyleHint();
if (restartHint == SmRestartNever)
continue;
QString program = c->program();
QStringList restartCommand = c->restartCommand();
if (program.isEmpty() && restartCommand.isEmpty())
continue;
if (excludeApps.contains( program.lower()))
continue;
count++;
QString n = QString::number(count);
config->writeEntry( QString("program")+n, program );
config->writeEntry( QString("clientId")+n, c->clientId() );
config->writeEntry( QString("restartCommand")+n, restartCommand );
config->writePathEntry( QString("discardCommand")+n, c->discardCommand() );
config->writeEntry( QString("restartStyleHint")+n, restartHint );
config->writeEntry( QString("userId")+n, c->userId() );
}
config->writeEntry( "count", count );
config->setGroup("General");
config->writeEntry( "screenCount", ScreenCount(qt_xdisplay()));
#ifndef NO_LEGACY_SESSION_MANAGEMENT
storeLegacySession( config );
#endif
config->sync();
}
/*! Restores the previous session. Ensures the window manager is
running (if specified).
*/
void KSMServer::restoreSession( QString sessionName )
{
kdDebug( 1218 ) << "KSMServer::restoreSession " << sessionName << endl;
upAndRunning( "restore session");
KConfig* config = KGlobal::config();
sessionGroup = "Session: " + sessionName;
config->setGroup( sessionGroup );
int count = config->readNumEntry( "count" );
appsToStart = count;
QValueList<QStringList> wmCommands;
if ( !wm.isEmpty() ) {
for ( int i = 1; i <= count; i++ ) {
QString n = QString::number(i);
if ( wm == config->readEntry( QString("program")+n ) ) {
wmCommands << config->readListEntry( QString("restartCommand")+n );
}
}
}
if ( wmCommands.isEmpty() )
wmCommands << ( QStringList() << wm );
publishProgress( appsToStart, true );
connectDCOPSignal( launcher, launcher, "autoStartDone()",
"restoreSessionInternal()", true);
connectDCOPSignal( launcher, launcher, "autoStart2Done()",
"restoreSessionDoneInternal()", true);
upAndRunning( "ksmserver" );
if ( !wmCommands.isEmpty() ) {
// when we have a window manager, we start it first and give
// it some time before launching other processes. Results in a
// visually more appealing startup.
for (uint i = 0; i < wmCommands.count(); i++)
startApplication( wmCommands[i] );
QTimer::singleShot( 4000, this, SLOT( autoStart() ) );
} else {
autoStart();
}
}
/*!
Starts the default session.
Currently, that's the window manager only (if specified).
*/
void KSMServer::startDefaultSession()
{
sessionGroup = "";
publishProgress( 0, true );
upAndRunning( "ksmserver" );
connectDCOPSignal( launcher, launcher, "autoStartDone()",
"autoStart2()", true);
connectDCOPSignal( launcher, launcher, "autoStart2Done()",
"restoreSessionDoneInternal()", true);
startApplication( wm );
QTimer::singleShot( 4000, this, SLOT( autoStart() ) );
}
void KSMServer::logout( int confirm, int sdtype, int sdmode )
{
shutdown( (KApplication::ShutdownConfirm)confirm,
(KApplication::ShutdownType)sdtype,
(KApplication::ShutdownMode)sdmode );
}
void KSMServer::autoStart()
{
static bool beenThereDoneThat = false;
if ( beenThereDoneThat )
return;
beenThereDoneThat = true;
DCOPRef( launcher ).send( "autoStart", (int) 1 );
}
void KSMServer::autoStart2()
{
static bool beenThereDoneThat = false;
if ( beenThereDoneThat )
return;
beenThereDoneThat = true;
DCOPRef( launcher ).send( "autoStart", (int) 2 );
}
void KSMServer::clientSetProgram( KSMClient* client )
{
if ( !wm.isEmpty() && client->program() == wm )
autoStart();
}
void KSMServer::clientRegistered( const char* previousId )
{
if ( previousId && lastIdStarted == previousId )
restoreNextInternal();
}
void KSMServer::restoreSessionInternal()
{
disconnectDCOPSignal( launcher, launcher, "autoStartDone()",
"restoreSessionInternal()");
lastAppStarted = 0;
lastIdStarted = QString::null;
restoreNextInternal();
}
void KSMServer::restoreNextInternal()
{
restoreTimer.stop();
KConfig* config = KGlobal::config();
config->setGroup( sessionGroup );
while ( lastAppStarted < appsToStart ) {
publishProgress ( appsToStart - lastAppStarted );
lastAppStarted++;
QString n = QString::number(lastAppStarted);
QStringList restartCommand = config->readListEntry( QString("restartCommand")+n );
if ( restartCommand.isEmpty() ||
(config->readNumEntry( QString("restartStyleHint")+n ) == SmRestartNever)) {
continue;
}
if ( wm == config->readEntry( QString("program")+n ) )
continue;
startApplication( restartCommand,
config->readEntry( QString("clientMachine")+n ),
config->readEntry( QString("userId")+n ));
lastIdStarted = config->readEntry( QString("clientId")+n );
if ( !lastIdStarted.isEmpty() ) {
restoreTimer.start( 2000, TRUE );
return; // we get called again from the clientRegistered handler
}
}
appsToStart = 0;
lastIdStarted = QString::null;
publishProgress( 0 );
autoStart2();
}
void KSMServer::restoreSessionDoneInternal()
{
disconnectDCOPSignal( launcher, launcher, "autoStart2Done()",
"restoreSessionDoneInternal()");
#ifndef NO_LEGACY_SESSION_MANAGEMENT
restoreLegacySession( KGlobal::config());
#endif
upAndRunning( "session ready" );
DCOPRef( "knotify" ).send( "sessionReady" ); // knotify startup optimization
KNotifyClient::event
