/*

* Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Main program for the JavaInstaller process

*

*/

#include <unistd.h>

#include <string.h>

// next three includes are for semaphores

#include <sys/sem.h>

#include <sys/stat.h>

#include <errno.h>

#ifdef __SYMBIAN32__

#include "javauids.h"

#endif

#include "comms.h"

#include "commsclientendpoint.h"

#include "exceptionbase.h"

#include "javacommonutils.h"

#include "javaoslayer.h"

#include "jvmstarter.h"

#include "logger.h"

#include "runtimeexception.h"

#include "runtimestarterutils.h"

using namespace java::comms;

using namespace java::runtime;

using namespace java::util;

const wchar_t* const INSTALLER_MAIN_CLASS =

    L"com.nokia.mj.impl.installer.Installer";

int startJvm(int argc, char *argv[]);

#ifdef __WINS__

#include <e32ldr.h>

#endif //__WINS__

// random small int value

#define SEM_KEY 1823 // codescanner::magicnumbers

// same as Symbian KErrAlreadyExists

#define INSTALLER_ALREADY_RUNNING -11 // codescanner::magicnumbers

// semaphore operation error, same as Symbian KErrLocked

#define SEMAPHORE_ERROR -22 // codescanner::magicnumbers

// Ubuntu semaphore headers do not define these contants

#ifndef SEM_R

#define SEM_R S_IRUSR

#endif

#ifndef SEM_A

#define SEM_A S_IWUSR

#endif

#ifndef __SYMBIAN32__

extern "C"

#endif //__SYMBIAN32__

int dllMain(int argc, char *argv[])

{

    JELOG(EJavaRuntime, "INSTALLER main()");

    JavaOsLayer::startUpTrace("INSTALLER main() start", -1, -1);

#ifdef __SYMBIAN32__

    // Only processes with TrustedUI capability are allowed to start

    // Java Installer in S60 device (e.g. TCK runner, preinstaller,

    // appconverter, javacleaner, AppInstUI,javainstaller,

    // javapostupdater and SDK Debug Agent)

    TSecureId creatorSecId(User::CreatorSecureId());

    if (!User::CreatorHasCapability(ECapabilityTrustedUI))

    {

        ELOG1(EJavaRuntime,

              "INSTALLER main: Process %x is not allowed to launch Java Installer, since it is missing TrustedUI capability.",

              creatorSecId.iId);

        return KErrPermissionDenied;

    }

#endif

#ifdef __SYMBIAN32__

    _LIT(KJavaInstallerProcessName, "JavaInstaller");

    _LIT(KJavaInstallerThreadName, "JavaInstallerMainThread");

    // Rename installer process and main thread.

    TInt err = User::RenameProcess(KJavaInstallerProcessName);

    if (KErrNone != err)

    {

        ELOG1(EJavaRuntime,

              "INSTALLER main: cannot change process name to JavaInstaller, err %d", err);

    }

    err = User::RenameThread(KJavaInstallerThreadName);

    if (KErrNone != err)

    {

        ELOG1(EJavaRuntime,

              "INSTALLER main: cannot change main thread name to "

              "JavaInstallerMainThread, err %d", err);

    }

#endif //__SYMBIAN32__

    // Allow running only one instance of this process at same time.

    // Because of S60 semop implementation (semop waits even if

    // IPC_NOWAIT has been specified) -> use semaphore access control

    // to limit number of instances to one.

#ifdef __SYMBIAN32__

    int perm = 0x1FF; // all permissions to every process

#else

    // Create one System V / XSI semaphore accessible only by this process

    int perm = (SEM_R | SEM_A);

#endif //__SYMBIAN32__

    int semid = semget(SEM_KEY, 1, IPC_CREAT | perm);

    // Increase process instance count by one.

    // This increase is automatically undone when this process exits.

    sembuf st = {0, 1, SEM_UNDO | IPC_NOWAIT};

    int ret = semop(semid, &st, 1);

    if (-1 == ret)

    {

        ELOG(EJavaRuntime, "INSTALLER main: semop failed");

        JavaOsLayer::startUpTrace("INSTALLER main() end", -1, -1);

        return SEMAPHORE_ERROR;

    }

    // Get the current instance count

    ret = semctl(semid, 0, GETVAL);

    if (-1 == ret)

    {

        ELOG(EJavaRuntime, "INSTALLER main: semctl failed");

        JavaOsLayer::startUpTrace("INSTALLER main() end", -1, -1);

        return SEMAPHORE_ERROR;

    }

    else if (ret > 1)

    {

        WLOG(EJavaRuntime, "Installer already running. Exiting.");

        JavaOsLayer::startUpTrace("INSTALLER main() end", -1, -1);

        return INSTALLER_ALREADY_RUNNING;

    }

    int result = -1;

    try

    {

        // Start the VM.

        result = startJvm(argc, argv);

    }

    catch (RuntimeException& e)

    {

        ELOG1(EJavaRuntime, "INSTALLER main() RuntimeException caught: %s ",

              e.toString().c_str());

    }

    catch (ExceptionBase& e)

    {

        ELOG1(EJavaRuntime, "INSTALLER main() ExceptionBase caught: %s ",

              e.toString().c_str());

    }

    catch (std::exception& e)

    {

        ELOG1(EJavaRuntime, "INSTALLER main() Exception %s caught", e.what());

    }

    // Try to remove the semaphore, ignore possible error

    ret = semctl(semid, 0, IPC_RMID);

    if (-1 == ret)

    {

        ELOG1(EJavaRuntime, "INSTALLER main() Remove semaphore failed, err %d",

              errno);

    }

    LOG1(EJavaRuntime, EInfo, "INSTALLER main() exit = %d", result);

    JavaOsLayer::startUpTrace("INSTALLER main() end", -1, -1);

    return result;

}

#ifdef __SYMBIAN32__

/**

 *  Start Java Captain process

 */

TInt startJavaCaptain()

{

    // Start 'systemams.exe' in S60 5.0 (it will start javacaptain) and

    // 'javacaptain.exe' in 9.2 and later

#ifdef RD_JAVA_S60_RELEASE_5_0_IAD

    _LIT(KJavaCaptainExe, "systemams.exe");

#else

    _LIT(KJavaCaptainExe, "javacaptain.exe");

#endif

    _LIT(KJavaCaptainArg, "");

    RProcess proc;

    int err = proc.Create(KJavaCaptainExe, KJavaCaptainArg);

    if (err == KErrNone)

    {

        proc.Resume();

#ifdef RD_JAVA_S60_RELEASE_5_0_IAD

        LOG(EJavaRuntime, EInfo,

            "InstallerStarter: startJavaCaptain systemams.exe was started ok");

#else

        LOG(EJavaRuntime, EInfo,

            "InstallerStarter: startJavaCaptain javacaptain.exe was started ok");

#endif

        // Wait 3 seconds so that Java Captain has time to start

        User::After(3000000);

    }

    else

    {

#ifdef RD_JAVA_S60_RELEASE_5_0_IAD

        ELOG1(EJavaRuntime,

              "InstallerStarter: startJavaCaptain start systemams.exe failed: %d", err);

#else

        ELOG1(EJavaRuntime,

              "InstallerStarter: startJavaCaptain start javacaptain.exe failed: %d", err);

#endif

    }

    proc.Close();

    return err;

}

#endif

int startJvm(int argc, char *argv[])

{

    // Create instance of RuntimeStarterUtils for thread supervisioning.

    std::auto_ptr<RuntimeStarterUtils> starterUtils(new RuntimeStarterUtils()); // codescanner::nonleavenew

    starterUtils->startThreadSupervisor();

    // Create Comms endpoint for JavaCaptain.

    std::auto_ptr<CommsClientEndpoint> comms(

        new CommsClientEndpoint(L"InstallerJavaCaptain"));

    int result = comms->connect(IPC_ADDRESS_JAVA_CAPTAIN_C);

#ifdef __SYMBIAN32__

    if (KErrNotFound == result)

    {

        ELOG(EJavaRuntime,

             "InstallerStarter: Java Captain was not running. Trying to restart it.");

        // Java Captain is not running, try to start it

        result = startJavaCaptain();

        if (KErrNone == result)

        {

            result = comms->connect(IPC_ADDRESS_JAVA_CAPTAIN_C);

        }

    }

#endif

    if (result != 0)

    {

        ELOG1(EJavaRuntime,

              "InstallerStarter: Connection to JavaCaptain failed: Reason = %d",

              result);

    }

    // Another Comms Endpoint for TCK Runner or preinstaller

    std::auto_ptr<CommsClientEndpoint> commsPoll;

    // If installer is started in 'poll' mode, connect also to TCK Runner,

    // preinstaller or javaappconverter. Command line is

    // 'javainstaller poll -address=(tck|preinstall|convert) [options]'

    const int minArgCount = 3;

    if (argc >= minArgCount)

    {

        if (!strcmp(argv[1], "poll")) // codescanner::accessArrayElementWithoutCheck2

        {

            int connected = 0;

            // next argument must be -address=(tck|preinstaller|convert)

            char* val = strpbrk(argv[2], "="); // codescanner::accessArrayElementWithoutCheck2

            if (val != 0)

            {

                val++;

                int commsAddress = 0;

                if (!strcmp(val, "tck"))

                {

                    commsAddress = IPC_ADDRESS_JAVA_TCK_RUNNER_C;

                }

                else if (!strcmp(val, "preinstall"))

                {

                    commsAddress = IPC_ADDRESS_JAVA_PREINSTALLER_C;

                }

                else if (!strcmp(val, "convert"))

                {

                    commsAddress = IPC_ADDRESS_JAVA_APPCONVERTER_C;

                }

                else if (!strcmp(val, "debugapi"))

                {

                    commsAddress = IPC_ADDRESS_JAVA_DEBUGAPI_C;

                }

                else

                {

                    ELOG1(EJavaRuntime, "InstallerStarter: unknown comms "

                          "poll address %s", val);

                }

                if (0 != commsAddress)

                {

                    commsPoll.reset(new CommsClientEndpoint(L"InstallerCommsPoll")); // codescanner::nonleavenew

                    result = commsPoll->connect(commsAddress);

                    if (0 != result)

                    {

                        ELOG3(EJavaRuntime,

                              "InstallerStarter: Connection to %s (address %d) failed: Reason = %d",

                              val, commsAddress, result);

                    }

                    else

                    {

                        connected = 1;

                    }

                }

            }

            else

            {

                ELOG1(EJavaRuntime, "InstallerStarter: No valid -address argument. Arg is %s",

                      argv[2]); // codescanner::accessArrayElementWithoutCheck2

            }

            // Installer cannot be started in 'poll' mode unless connection is ok

            if (!connected)

            {

                ELOG(EJavaRuntime,

                     "InstallerStarter: Installer cannot be started in poll mode because connection to initiator fails.");

                std::string errorStr("Installer cannot start in poll mode");

                throw RuntimeException(errorStr, __FILE__, __FUNCTION__, __LINE__);

            }

        }

    }

    // Create starter for starting the JVM

    std::auto_ptr<JvmStarter>

    jvm(JvmStarter::getJvmStarterInstance(JvmStarter::CDC,

                                          L"Installer"));

    // Set the debugging features available provided by the captain.

    starterUtils->enableDevelopmentFeatures(*jvm.get());

    // Set the old heap size to 512K

    const int oldHeapSize = 512;

    jvm->overrideOldHeapSize(oldHeapSize);

    jvm->enableThreadDumping();

    jvm->setMainClass(INSTALLER_MAIN_CLASS);

    jvm->appendSystemProperty(L"-Dcom.nokia.rt.port=installer");

    for (int i = 1; i < argc; ++i)

    {

        jvm->appendApplicationArgument(

            JavaCommonUtils::utf8ToWstring(argv[i])); // codescanner::accessArrayElementWithoutCheck2

    }

#ifdef RD_JAVA_INSTALLERUI_ENABLED

    jvm->appendSystemProperty(

        L"-Dcom.nokia.mj.impl.installer.ui="

        L"com.nokia.mj.impl.installer.ui.eswt.InstallerUiEswt");

#endif

    std::wstring extendedBootClassPath;

    // This call is platform dependent.

    starterUtils->getExtBootClassPath(extendedBootClassPath);

    if (extendedBootClassPath.length() > 0)

    {

        // Provide the bootclasspath also as a system propery

        // to be used for security extensions.

        std::wstring addOnList(L"-Dcom.nokia.mj.addon.list=");

        addOnList += extendedBootClassPath;

        jvm->appendSystemProperty(addOnList);

    }

    // Start the JVM.

    return jvm->startJvm();

}

#ifdef __SYMBIAN32__

#include "javasymbianoslayer.h"

EXPORT_C FuncPtr findDllMethod(const char* funcName)

{

    FuncPtr ptr = 0;

    if (strcmp(funcName, "dllMain") == 0)

    {

        ptr = (FuncPtr)dllMain;

    }

    return ptr;

}

#endif //__SYMBIAN32__