/*

* 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:  The JNI code for Java Installer component

*                SysUtil.

*

*/

#include <centralrepository.h>

#include <e32property.h>

#include <f32file.h>

#include <hal.h>

#include <hal_data.h>

#include <sysutil.h>

#include <driveinfo.h>

#include "com_nokia_mj_impl_installer_utils_SysUtil.h"

#include "logger.h"

#ifndef KPSUidJavaLatestInstallation

#define KPSUidJavaLatestInstallation 0x10282567

#endif

/**

 * Helper method for creating HBufC from jstring.

 */

HBufC* CreateHBufCFromJavaStringLC(JNIEnv* aEnv, jstring aString)

{

    HBufC16* str = HBufC16::NewL(aEnv->GetStringLength(aString));

    CleanupStack::PushL(str);

    const TUint16* temp = aEnv->GetStringChars(aString, 0);

    str->Des() = temp;

    aEnv->ReleaseStringChars(aString, temp);

    return str;

}

/**

 * See JNI method __1getRepositoryValue.

 * This is just internal wrapper method for handling Leaves.

 */

jint GetRepositoryValueL

(JNIEnv *aEnv, jclass, jint aRepository, jlong aKey, jobject aIntValue)

{

    TUid repositoryUid = { aRepository };

    TUint key(aKey);

    TInt val(0);

    CRepository* repository = CRepository::NewLC(repositoryUid);

    TInt err = repository->Get(key, val);

    CleanupStack::PopAndDestroy(repository);

    if (KErrNone == err)

    {

        jclass clazz = aEnv->GetObjectClass(aIntValue);

        jmethodID methodID = aEnv->GetMethodID(clazz, "setValue", "(I)V");

        if (0 == methodID)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1getRepositoryValue: Cannot find setValue method");

            err = KErrGeneral;

        }

        else

        {

            aEnv->CallVoidMethod(aIntValue, methodID, val);

        }

    }

    return err;

}

/**

 * See JNI method __1getRepositoryStringValue.

 * This is just internal wrapper method for handling Leaves.

 */

jint GetRepositoryStringValueL

(JNIEnv *aEnv, jclass, jint aRepository, jlong aKey, jobjectArray aStringArray)

{

    TUid repositoryUid = { aRepository };

    CRepository* repository = CRepository::NewLC(repositoryUid);

    RBuf buf;

    buf.Create(NCentralRepositoryConstants::KMaxUnicodeStringLength);

    CleanupClosePushL(buf);

    TInt err = repository->Get(aKey, buf) ;

    if (KErrNone == err)

    {

        jstring val = aEnv->NewString((const unsigned short*)(buf.Ptr()), buf.Length());

        if (NULL == val)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1getRepositoryStringValue: String could not be constructed");

            err = KErrGeneral;

        }

        else

        {

            aEnv->SetObjectArrayElement(aStringArray, 0, val);

        }

    }

    CleanupStack::PopAndDestroy(&buf) ;

    CleanupStack::PopAndDestroy(repository);

    return err;

}

/**

 * See JNI method __1setRepositoryValue.

 * This is just internal wrapper method for handling Leaves.

 */

jint SetRepositoryValueL

(JNIEnv *, jclass, jint aRepository, jlong aKey, jint aValue)

{

    TUid repositoryUid = { aRepository };

    TUint key(aKey);

    TInt val(aValue);

    CRepository* repository = CRepository::NewLC(repositoryUid);

    TInt err = repository->Set(key, val);

    CleanupStack::PopAndDestroy(repository);

    return err;

}

/**

 * See JNI method __1setRepositoryStringValue.

 * This is just internal wrapper method for handling Leaves.

 */

jint SetRepositoryStringValueL

(JNIEnv *aEnv, jclass, jint aRepository, jlong aKey, jstring aValue)

{

    TUid repositoryUid = { aRepository };

    TUint key(aKey);

    // Copy the characters in jstrings to Symbian descriptors so that

    // they can be used in S60 code.

    const jchar* value = aEnv->GetStringChars(aValue, 0);

    if (NULL == value)

    {

        ELOG(EJavaInstaller,

             "SysUtil__1setRepositoryStringValue: getting value failed in JNI");

        return KErrArgument;

    }

    HBufC16* valueDes = HBufC16::New(aEnv->GetStringLength(aValue) + 1);

    if (NULL == valueDes)

    {

        ELOG(EJavaInstaller,

             "SysUtil__1setRepositoryStringValue: value allocation failed in JNI");

        return KErrNoMemory;

    }

    CleanupStack::PushL(valueDes);

    *valueDes = value;

    aEnv->ReleaseStringChars(aValue, value);

    // Update repository value.

    CRepository* repository = CRepository::NewLC(repositoryUid);

    TInt err = repository->Set(key, *valueDes);

    CleanupStack::PopAndDestroy(repository);

    CleanupStack::PopAndDestroy(valueDes);

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _defineProperty

 * Signature: (IJ)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1defineProperty

(JNIEnv *, jclass, jint aCategory, jlong aKey)

{

    _LIT_SECURITY_POLICY_PASS(KReadPolicy);

    // update allowed by processes with write system data capability

    _LIT_SECURITY_POLICY_C1(KWritePolicy, ECapabilityWriteDeviceData);

    TUid categoryUid = { aCategory };

    TInt err = RProperty::Define(categoryUid, aKey, RProperty::EInt,

                                 KReadPolicy, KWritePolicy);

    if (KErrAlreadyExists == err)

    {

        err = KErrNone; // Ignore KErrAlreadyExists status.

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _deleteProperty

 * Signature: (IJ)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1deleteProperty

(JNIEnv *, jclass, jint aCategory, jlong aKey)

{

    TUid categoryUid = { aCategory };

    TInt err = RProperty::Delete(categoryUid, aKey);

    if (KErrNotFound == err)

    {

        err = KErrNone; // Ignore KErrNotFound status.

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getPropertyValue

 * Signature: (IJLcom/nokia/mj/impl/installer/utils/SysUtil/IntValue;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getPropertyValue

(JNIEnv *aEnv, jclass, jint aCategory, jlong aKey, jobject aIntValue)

{

    TUid categoryUid = { aCategory };

    TUint key(aKey);

    TInt val(0);

    TInt err = RProperty::Get(categoryUid, key, val);

    if (KErrNone == err)

    {

        jclass clazz = aEnv->GetObjectClass(aIntValue);

        jmethodID methodID = aEnv->GetMethodID(clazz, "setValue", "(I)V");

        if (0 == methodID)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1getPropertyValue: Cannot find setValue method");

            return KErrGeneral;

        }

        aEnv->CallVoidMethod(aIntValue, methodID, val);

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _setPropertyValue

 * Signature: (IJI)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1setPropertyValue

(JNIEnv *, jclass, jint aCategory, jlong aKey, jint aValue)

{

    TUid categoryUid = { aCategory };

    TUint key(aKey);

    TInt val(aValue);

    TInt err = RProperty::Set(categoryUid, key, val);

    if ((KErrPermissionDenied == err) && (KPSUidJavaLatestInstallation == key))

    {

        // Just log this error to allow running installer when OMJ itself is

        // installed to the device, the native installer is still running and

        // existing S60 midlets must be converted to OMJ

        WLOG(EJavaInstaller,

             "SysUtil__1setPropertyValue: Cannot set value because the old S60 "

             "installer still owns the PS key");

        err = KErrNone;

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getRepositoryValue

 * Signature: (IJLcom/nokia/mj/impl/installer/utils/SysUtil/IntValue;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getRepositoryValue

(JNIEnv *aEnv, jclass aClass, jint aRepository, jlong aKey, jobject aIntValue)

{

    TInt result = KErrNone;

    TRAPD(err, result = GetRepositoryValueL(aEnv, aClass, aRepository, aKey, aIntValue));

    if (KErrNone == err)

    {

        err = result;

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getRepositoryStringValue

 * Signature: (IJ[Ljava/lang/String;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getRepositoryStringValue

(JNIEnv *aEnv, jclass aClass, jint aRepository, jlong aKey, jobjectArray aStringArray)

{

    TInt result = KErrNone;

    TRAPD(err, result = GetRepositoryStringValueL(aEnv, aClass, aRepository, aKey, aStringArray));

    if (KErrNone == err)

    {

        err = result;

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _setRepositoryValue

 * Signature: (IJI)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1setRepositoryValue

(JNIEnv *aEnv, jclass aClass, jint aRepository, jlong aKey, jint aValue)

{

    TInt result = KErrNone;

    TRAPD(err, result = SetRepositoryValueL(aEnv, aClass, aRepository, aKey, aValue));

    if (KErrNone == err)

    {

        err = result;

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _setRepositoryStringValue

 * Signature: (IJ[Ljava/lang/String;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1setRepositoryStringValue

(JNIEnv *aEnv, jclass aClass, jint aRepository, jlong aKey, jstring aValue)

{

    TInt result = KErrNone;

    TRAPD(err, result = SetRepositoryStringValueL(aEnv, aClass, aRepository, aKey, aValue));

    if (KErrNone == err)

    {

        err = result;

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getDriveUniqId

 * Signature: (ILcom/nokia/mj/impl/installer/utils/SysUtil/IntValue;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getDriveUniqId

(JNIEnv *aEnv, jclass, jint aDrive, jobject aIntValue)

{

    RFs fs;

    TInt err = fs.Connect();

    if (KErrNone != err)

    {

        return err;

    }

    TVolumeInfo volumeInfo;

    err = fs.Volume(volumeInfo, aDrive);

    fs.Close();

    if (KErrNone == err)

    {

        jclass clazz = aEnv->GetObjectClass(aIntValue);

        jmethodID methodID = aEnv->GetMethodID(clazz, "setValue", "(I)V");

        if (0 == methodID)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1getDriveUniqId: Cannot find setValue method");

            return KErrGeneral;

        }

        aEnv->CallVoidMethod(aIntValue, methodID, volumeInfo.iUniqueID);

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _isDrivePresent

 * Signature: (ILcom/nokia/mj/impl/installer/utils/SysUtil/BooleanValue;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1isDrivePresent

(JNIEnv *aEnv, jclass, jint aDrive, jobject aBooleanValue)

{

    RFs fs;

    TInt err = fs.Connect();

    if (KErrNone != err)

    {

        return err;

    }

    TDriveInfo driveInfo;

    err = fs.Drive(driveInfo, aDrive);

    fs.Close();

    TBool drivePresent = ETrue;

    if (KErrNone == err)

    {

        drivePresent = (driveInfo.iType != EMediaNotPresent);

    }

    else if (KErrNotReady == err || KErrBadName == err)

    {

        drivePresent = EFalse;

        err = KErrNone;

    }

    if (KErrNone == err)

    {

        jclass clazz = aEnv->GetObjectClass(aBooleanValue);

        jmethodID methodID = aEnv->GetMethodID(clazz, "setValue", "(Z)V");

        if (0 == methodID)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1isDrivePresent: Cannot find setValue method");

            return KErrGeneral;

        }

        aEnv->CallVoidMethod(aBooleanValue, methodID, drivePresent);

    }

    return err;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _isDriveReadOnly

 * Signature: (I)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1isDriveReadOnly

(JNIEnv *, jclass, jint aDrive)

{

    RFs fs;

    TInt err = fs.Connect();

    if (KErrNone != err)

    {

        return err;

    }

    TUint driveStatus = 0;

    err = DriveInfo::GetDriveStatus(fs, aDrive, driveStatus);

    fs.Close();

    if (err < 0)

    {

        return err;

    }

    if (driveStatus & DriveInfo::EDriveReadOnly)

    {

        return 1;

    }

    else if (driveStatus & DriveInfo::EDriveRom)

    {

        return 1;

    }

    return 0;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _isDiskSpaceBelowCriticalLevel

 * Signature: (ILcom/nokia/mj/impl/installer/utils/SysUtil/BooleanValue;)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1isDiskSpaceBelowCriticalLevel

(JNIEnv *aEnv, jclass, jint aBytesToWrite, jint aDrive, jobject aBooleanValue)

{

    TBool result = false;

    TRAPD(err, result = SysUtil::DiskSpaceBelowCriticalLevelL(NULL, aBytesToWrite, aDrive));

    if (KErrNone == err)

    {

        jclass clazz = aEnv->GetObjectClass(aBooleanValue);

        jmethodID methodID = aEnv->GetMethodID(clazz, "setValue", "(Z)V");

        if (0 == methodID)

        {

            ELOG(EJavaInstaller,

                 "SysUtil__1isDiskSpaceBelowCriticalLevel: Cannot find setValue method");

            return KErrGeneral;

        }

        aEnv->CallVoidMethod(aBooleanValue, methodID, result);

    }

    return err;

}

_LIT(KProcessName, "*");

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getProcessState

 * Signature: (I)I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getProcessState

(JNIEnv *, jclass, jint aUid)

{

    TInt result = KErrNone;

    RProcess proc;

    TFindProcess procFinder(KProcessName); // search for "*"

    TFullName procName;

    while (procFinder.Next(procName) == KErrNone)

    {

        if (proc.Open(procFinder) != KErrNone)

        {

            continue;

        }

        if (proc.SecureId() == aUid)

        {

            if (proc.ExitType() == EExitPending)

            {

                LOG1(EJavaInstaller, EInfo,

                     "SysUtil__1getProcessState: Found process [%x]", aUid);

                result = 1; // PROC_STATE_ALIVE

                proc.Close();

                break;

            }

        }

        proc.Close();

    }

    return result;

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getDefaultPhoneMemory

 * Signature: ()I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getDefaultPhoneMemory

(JNIEnv *, jclass)

{

    TInt drive;

    TInt err = DriveInfo::GetDefaultDrive(DriveInfo::EDefaultPhoneMemory, drive);

    if (err < 0)

    {

        // In case of error return Symbian error code

        return err;

    }

    else

    {

        // else return the number of the drive

        return drive;

    }

}

/*

 * Class:     com_nokia_mj_impl_installer_utils_SysUtil

 * Method:    _getDefaultMassStorage

 * Signature: ()I

 */

JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_installer_utils_SysUtil__1getDefaultMassStorage

(JNIEnv *, jclass)

{

    TInt drive;

    TInt err = DriveInfo::GetDefaultDrive(DriveInfo::EDefaultMassStorage, drive);