Examples with Win32Exception com.sun.jna.platform.win32.Win32Exception used on opensource projects

Example 16 with Win32Exception

use of com.sun.jna.platform.win32.Win32Exception in project jna by java-native-access.

the class Advapi32Util method backupEncryptedFile.

/**
     * Backup an encrypted file or folder without decrypting it. A file named
     * "bar/sample.text" will be backed-up to "destDir/sample.text". A directory
     * named "bar" will be backed-up to "destDir/bar". This method is NOT
     * recursive. If you have an encrypted directory with encrypted files, this
     * method must be called once for the directory, and once for each encrypted
     * file to be backed-up.
     *
     * @param src
     *         The encrypted file or directory to backup.
     * @param destDir
     *         The directory where the backup will be saved.
     */
public static void backupEncryptedFile(File src, File destDir) {
    if (!destDir.isDirectory()) {
        throw new IllegalArgumentException("destDir must be a directory.");
    }
    // Open the file for export (backup)
    ULONG readFlag = new ULONG(0);
    // Import (restore) file
    ULONG writeFlag = new ULONG(CREATE_FOR_IMPORT);
    if (src.isDirectory()) {
        writeFlag.setValue(CREATE_FOR_IMPORT | CREATE_FOR_DIR);
    }
    // open encrypted file for export
    String srcFileName = src.getAbsolutePath();
    PointerByReference pvContext = new PointerByReference();
    if (Advapi32.INSTANCE.OpenEncryptedFileRaw(srcFileName, readFlag, pvContext) != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    // read encrypted file
    final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    FE_EXPORT_FUNC pfExportCallback = new FE_EXPORT_FUNC() {

        @Override
        public DWORD callback(Pointer pbData, Pointer pvCallbackContext, ULONG ulLength) {
            byte[] arr = pbData.getByteArray(0, ulLength.intValue());
            try {
                outputStream.write(arr);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
            return new DWORD(W32Errors.ERROR_SUCCESS);
        }
    };
    if (Advapi32.INSTANCE.ReadEncryptedFileRaw(pfExportCallback, null, pvContext.getValue()) != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    // close
    try {
        outputStream.close();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    Advapi32.INSTANCE.CloseEncryptedFileRaw(pvContext.getValue());
    // open file for import
    String destFileName = destDir.getAbsolutePath() + File.separator + src.getName();
    pvContext = new PointerByReference();
    if (Advapi32.INSTANCE.OpenEncryptedFileRaw(destFileName, writeFlag, pvContext) != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    // write encrypted file
    final IntByReference elementsReadWrapper = new IntByReference(0);
    FE_IMPORT_FUNC pfImportCallback = new FE_IMPORT_FUNC() {

        @Override
        public DWORD callback(Pointer pbData, Pointer pvCallbackContext, ULONGByReference ulLength) {
            int elementsRead = elementsReadWrapper.getValue();
            int remainingElements = outputStream.size() - elementsRead;
            int length = Math.min(remainingElements, ulLength.getValue().intValue());
            pbData.write(0, outputStream.toByteArray(), elementsRead, length);
            elementsReadWrapper.setValue(elementsRead + length);
            ulLength.setValue(new ULONG(length));
            return new DWORD(W32Errors.ERROR_SUCCESS);
        }
    };
    if (Advapi32.INSTANCE.WriteEncryptedFileRaw(pfImportCallback, null, pvContext.getValue()) != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    // close
    Advapi32.INSTANCE.CloseEncryptedFileRaw(pvContext.getValue());
}

Example 17 with Win32Exception

use of com.sun.jna.platform.win32.Win32Exception in project jna by java-native-access.

the class Advapi32Util method registryDeleteKey.

/**
	 * Delete a registry key.
	 *
	 * @param root
	 *            Root key.
	 * @param keyPath
	 *            Path to an existing registry key.
	 * @param keyName
	 *            Name of the key to delete.
	 */
public static void registryDeleteKey(HKEY root, String keyPath, String keyName) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ | WinNT.KEY_WRITE, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        registryDeleteKey(phkKey.getValue(), keyName);
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 18 with Win32Exception

use of com.sun.jna.platform.win32.Win32Exception in project jna by java-native-access.

the class Advapi32Util method registrySetIntValue.

/**
	 * Set an integer value in registry.
	 *
	 * @param root
	 *            Root key.
	 * @param keyPath
	 *            Path to an existing registry key.
	 * @param name
	 *            Value name.
	 * @param value
	 *            Value to write to registry.
	 */
public static void registrySetIntValue(HKEY root, String keyPath, String name, int value) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ | WinNT.KEY_WRITE, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        registrySetIntValue(phkKey.getValue(), name, value);
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 19 with Win32Exception

use of com.sun.jna.platform.win32.Win32Exception in project jna by java-native-access.

the class Advapi32Util method registrySetStringValue.

/**
	 * Set a string value in registry.
	 *
	 * @param root
	 *            Root key.
	 * @param keyPath
	 *            Path to an existing registry key.
	 * @param name
	 *            Value name.
	 * @param value
	 *            Value to write to registry.
	 */
public static void registrySetStringValue(HKEY root, String keyPath, String name, String value) {
    HKEYByReference phkKey = new HKEYByReference();
    int rc = Advapi32.INSTANCE.RegOpenKeyEx(root, keyPath, 0, WinNT.KEY_READ | WinNT.KEY_WRITE, phkKey);
    if (rc != W32Errors.ERROR_SUCCESS) {
        throw new Win32Exception(rc);
    }
    try {
        registrySetStringValue(phkKey.getValue(), name, value);
    } finally {
        rc = Advapi32.INSTANCE.RegCloseKey(phkKey.getValue());
        if (rc != W32Errors.ERROR_SUCCESS) {
            throw new Win32Exception(rc);
        }
    }
}

Example 20 with Win32Exception

use of com.sun.jna.platform.win32.Win32Exception in project jna by java-native-access.

the class Advapi32Util method isWellKnownSid.

/**
	 * Compares a SID to a well known SID and returns TRUE if they match.
	 *
	 * @param sidString
	 *            String representation of a SID.
	 * @param wellKnownSidType
	 *            Member of the WELL_KNOWN_SID_TYPE enumeration to compare with
	 *            the SID at pSid.
	 * @return True if the SID is of the well-known type, false otherwise.
	 */
public static boolean isWellKnownSid(String sidString, int wellKnownSidType) {
    PSIDByReference pSID = new PSIDByReference();
    if (!Advapi32.INSTANCE.ConvertStringSidToSid(sidString, pSID)) {
        throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
    }
    PSID value = pSID.getValue();
    try {
        return Advapi32.INSTANCE.IsWellKnownSid(value, wellKnownSidType);
    } finally {
        Kernel32Util.freeLocalMemory(value.getPointer());
    }
}