output_file=$3
mimetype=${4:-}
image_size=100x100
target_file=$(echo "$url" | sed -e "s#^file:/*#/#g")

check_command() {
  cmd=$1
  cmd_path=$(command -v "${cmd}")
  if [[ ! -e "${cmd_path}" ]] ; then
    echo "${cmd} does not exist."
    exit 1
  fi
}

# Get ImageMagick command (magick for v7, convert for v6)
get_imagemagick_cmd() {
  if command -v magick >/dev/null 2>&1; then
    echo "magick"

import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Echo response message.
 *
 * This response confirms that the server is still active
 * and the connection is working properly.
 *
 * @author mbechler
 */
public class Smb2EchoResponse extends ServerMessageBlock2Response {

    /**
     * Constructs an SMB2 echo response
     * @param config the client configuration
     */

import jcifs.Configuration;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Echo request message.
 *
 * This command is used to test connectivity and ensure the
 * SMB2 connection is still active.
 *
 * @author mbechler
 */
public class Smb2EchoRequest extends ServerMessageBlock2Request<Smb2EchoResponse> {

    /**
     * Constructs an SMB2 echo request
     * @param config the client configuration
     */

@echo off

if DEFINED JAVA_HOME goto cont

:err
ECHO JAVA_HOME environment variable must be set! 1>&2
EXIT /B 1 

:cont
set SCRIPT_DIR=%~dp0
for %%I in ("%SCRIPT_DIR%..") do set FESS_HOME=%%~dpfI


REM ***** JAVA options *****

if "%FESS_MIN_MEM%" == "" (
set FESS_MIN_MEM=256m
)

if "%FESS_MAX_MEM%" == "" (
set FESS_MAX_MEM=1g
)

if NOT "%FESS_HEAP_SIZE%" == "" (
set FESS_MIN_MEM=%FESS_HEAP_SIZE%

FESS_CLASSPATH=$FESS_HOME/lib/classes

# JAVA_OPTS is not a built-in JVM mechanism but some people think it is so we
# warn them that we are not observing the value of $JAVA_OPTS
if [ ! -z "$JAVA_OPTS" ]; then
  echo -n "warning: ignoring JAVA_OPTS=$JAVA_OPTS; "
  echo "pass JVM parameters via FESS_JAVA_OPTS"
fi

if [ "x$FESS_MIN_MEM" = "x" ]; then
    FESS_MIN_MEM=256m
fi
if [ "x$FESS_MAX_MEM" = "x" ]; then
    FESS_MAX_MEM=2g
fi

            }
        }
    }

    private void sendKeepAlive(ChannelInfo channel) throws IOException {
        // Send echo request as keep-alive
        // This would need to be implemented with actual echo request/response
        log.debug("Sending keep-alive for channel {}", channel.getChannelId());
        channel.updateActivity();
    }

    private void discoverInterfaces() {

        public int add2(final int arg1, final int arg2) {
            return arg1 + arg2;
        }

        /**
         * @param arg
         * @return Integer
         */
        public Integer echo(final Integer arg) {
            return arg;
        }

        /**
         *
         */
        public void throwException() {
            throw new IllegalStateException("hoge");
        }

                }
            }
        }
    }

    private boolean checkChannelHealth(ChannelInfo channel) {
        // Simplified health check - in real implementation would send a ping/echo
        return channel.getTransport() != null;
    }

    /** SMB2 IO control command */
    protected static final short SMB2_IOCTL = 0x000B;
    /** SMB2 cancel command */
    protected static final short SMB2_CANCEL = 0x000C;
    /** SMB2 echo/keepalive command */
    protected static final short SMB2_ECHO = 0x000D;
    /** SMB2 query directory command */
    protected static final short SMB2_QUERY_DIRECTORY = 0x000E;
    /** SMB2 change notify command */

    /**
     * SMB command to move a file.
     */
    public static final byte SMB_COM_MOVE = (byte) 0x2A;

    /**
     * SMB command for echo/ping operations.
     */
    public static final byte SMB_COM_ECHO = (byte) 0x2B;

    /**
     * SMB command to open a file with extended attributes.
     */