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270 lines
8.9 KiB
270 lines
8.9 KiB
/*
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This file is part of KMail, the KDE mail client.
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Copyright (c) 2000 Don Sanders <sanders@kde.org>
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KMail is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License, version 2, as
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published by the Free Software Foundation.
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KMail is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <config.h>
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#include "kmstartup.h"
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#include "kmkernel.h" //control center
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#include "kcursorsaver.h"
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#include <klocale.h>
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#include <ksimpleconfig.h>
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#include <kstandarddirs.h>
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#include <kmessagebox.h>
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#include <dcopclient.h>
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#include <kcrash.h>
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#include <kglobal.h>
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#include <kapplication.h>
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#include <kaboutdata.h>
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#include <kiconloader.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <tqfile.h>
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#undef Status // stupid X headers
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extern "C" {
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// Crash recovery signal handler
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void kmsignalHandler(int sigId)
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{
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kmsetSignalHandler(SIG_DFL);
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fprintf(stderr, "*** KMail got signal %d (Exiting)\n", sigId);
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// try to cleanup all windows
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if (kmkernel) kmkernel->dumpDeadLetters();
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::exit(-1); //
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}
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// Crash recovery signal handler
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void kmcrashHandler(int sigId)
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{
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kmsetSignalHandler(SIG_DFL);
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fprintf(stderr, "*** KMail got signal %d (Crashing)\n", sigId);
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// try to cleanup all windows
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if (kmkernel) kmkernel->dumpDeadLetters();
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// Return to DrKonqi.
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}
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//-----------------------------------------------------------------------------
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void kmsetSignalHandler(void (*handler)(int))
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{
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signal(SIGKILL, handler);
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signal(SIGTERM, handler);
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signal(SIGHUP, handler);
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KCrash::setEmergencySaveFunction(kmcrashHandler);
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}
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}
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//-----------------------------------------------------------------------------
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namespace {
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TQString getMyHostName() {
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char hostNameC[256];
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// null terminate this C string
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hostNameC[255] = 0;
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// set the string to 0 length if gethostname fails
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if(gethostname(hostNameC, 255))
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hostNameC[0] = 0;
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return TQString::fromLocal8Bit(hostNameC);
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}
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} // anon namespace
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namespace KMail {
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void checkConfigUpdates() {
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static const char * const updates[] = {
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"9",
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"3.1-update-identities",
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"3.1-use-identity-uoids",
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"3.1-new-mail-notification",
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"3.2-update-loop-on-goto-unread-settings",
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"3.1.4-dont-use-UOID-0-for-any-identity",
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"3.2-misc",
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"3.2-moves",
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"3.3-use-ID-for-accounts",
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"3.3-update-filter-rules",
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"3.3-move-identities-to-own-file",
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"3.3-aegypten-kpgprc-to-kmailrc",
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"3.3-aegypten-kpgprc-to-libkleopatrarc",
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"3.3-aegypten-emailidentities-split-sign-encr-keys",
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"3.3-misc",
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"3.3b1-misc",
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"3.4-misc",
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"3.4a",
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"3.4b",
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"3.4.1",
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"3.5-filter-icons",
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"3.5.4",
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"3.5.7-imap-flag-migration"
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};
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static const int numUpdates = sizeof updates / sizeof *updates;
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// Warning: do not remove entries in the above array, or the update-level check below will break
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KConfig * config = KMKernel::config();
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KConfigGroup startup( config, "Startup" );
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const int configUpdateLevel = startup.readNumEntry( "update-level", 0 );
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if ( configUpdateLevel == numUpdates ) // Optimize for the common case that everything is OK
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return;
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for ( int i = configUpdateLevel ; i < numUpdates ; ++i ) {
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config->checkUpdate( updates[i], "kmail.upd" );
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}
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startup.writeEntry( "update-level", numUpdates );
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}
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void lockOrDie() {
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// Check and create a lock file to prevent concurrent access to kmail files
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TQString appName = kapp->instanceName();
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if ( appName.isEmpty() )
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appName = "kmail";
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TQString programName;
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const KAboutData *about = kapp->aboutData();
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if ( about )
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programName = about->programName();
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if ( programName.isEmpty() )
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programName = i18n("KMail");
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TQString lockLocation = locateLocal("data", "kmail/lock");
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KSimpleConfig config(lockLocation);
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int oldPid = config.readNumEntry("pid", -1);
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const TQString oldHostName = config.readEntry("hostname");
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const TQString oldAppName = config.readEntry( "appName", appName );
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const TQString oldProgramName = config.readEntry( "programName", programName );
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const TQString hostName = getMyHostName();
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bool first_instance = false;
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if ( oldPid == -1 )
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first_instance = true;
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else if (hostName == oldHostName && oldPid != getpid()) {
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// check if the lock file is stale
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#ifdef TQ_OS_LINUX
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if ( ::access("/proc", X_OK ) == 0 ) {
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// On linux with /proc we can even check that it's really kmail and not something else
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char path_buffer[MAXPATHLEN + 1];
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path_buffer[MAXPATHLEN] = 0;
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const TQString procPath = TQString("/proc/%1/exe").arg(oldPid);
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const int length = readlink (procPath.latin1(), path_buffer, MAXPATHLEN);
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if ( length == -1 ) // not such pid
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first_instance = true;
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else {
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path_buffer[length] = '\0';
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const TQString path = TQFile::decodeName(path_buffer);
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kdDebug() << k_funcinfo << path << endl;
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const int pos = path.findRev('/');
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const TQString fileName = path.mid(pos+1);
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kdDebug() << "Found process " << oldPid << " running. It's: " << fileName << endl;
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first_instance = fileName != "kmail" && fileName != "kontact";
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}
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} else
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#endif
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{
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// Otherwise we just check if the other pid is currently running.
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// Not 100% correct but better safe than sorry.
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if ( kill(oldPid, 0) == -1 )
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first_instance = ( errno == ESRCH );
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}
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}
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if ( !first_instance ) {
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TQString msg;
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if ( oldHostName == hostName ) {
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// this can only happen if the user is running this application on
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// different displays on the same machine. All other cases will be
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// taken care of by KUniqueApplication()
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if ( oldAppName == appName )
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msg = i18n("%1 already seems to be running on another display on "
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"this machine. Running %2 more than once "
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"can cause the loss of mail. You should not start %1 "
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"unless you are sure that it is not already running.")
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.arg( programName, programName );
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// TQString::arg( st ) only replaces the first occurrence of %1
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// with st while TQString::arg( s1, s2 ) replacess all occurrences
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// of %1 with s1 and all occurrences of %2 with s2. So don't
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// even think about changing the above to .arg( programName ).
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else
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msg = i18n("%1 seems to be running on another display on this "
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"machine. Running %1 and %2 at the same "
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"time can cause the loss of mail. You should not start %2 "
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"unless you are sure that %1 is not running.")
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.arg( oldProgramName, programName );
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}
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else {
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if ( oldAppName == appName )
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msg = i18n("%1 already seems to be running on %2. Running %1 more "
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"than once can cause the loss of mail. You should not "
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"start %1 on this computer unless you are sure that it is "
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"not already running on %2.")
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.arg( programName, oldHostName );
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else
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msg = i18n("%1 seems to be running on %3. Running %1 and %2 at the "
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"same time can cause the loss of mail. You should not "
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"start %2 on this computer unless you are sure that %1 is "
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"not running on %3.")
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.arg( oldProgramName, programName, oldHostName );
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}
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KCursorSaver idle( KBusyPtr::idle() );
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if ( KMessageBox::No ==
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KMessageBox::warningYesNo( 0, msg, TQString(),
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i18n("Start %1").arg( programName ),
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i18n("Exit") ) ) {
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exit(1);
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}
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}
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config.writeEntry("pid", getpid());
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config.writeEntry("hostname", hostName);
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config.writeEntry( "appName", appName );
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config.writeEntry( "programName", programName );
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config.sync();
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}
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void insertLibraryCataloguesAndIcons() {
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static const char * const catalogues[] = {
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"libkdepim",
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"libksieve",
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"libkleopatra",
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"libkmime"
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};
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KLocale * l = KGlobal::locale();
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KIconLoader * il = KGlobal::iconLoader();
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for ( unsigned int i = 0 ; i < sizeof catalogues / sizeof *catalogues ; ++i ) {
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l->insertCatalogue( catalogues[i] );
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il->addAppDir( catalogues[i] );
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}
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}
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void cleanup()
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{
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const TQString lockLocation = locateLocal("data", "kmail/lock");
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KSimpleConfig config(lockLocation);
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config.writeEntry("pid", -1);
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config.sync();
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}
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}
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