package net.i2p.router;

import com.sun.jna.WString;
import com.sun.jna.platform.win32.Kernel32;
import com.sun.jna.platform.win32.Kernel32Util;

public class Elevator {
    public static void main(String... args) {
        executeAsAdministrator("c:\\windows\\system32\\notepad.exe", "");
    }

    public static void executeAsAdministrator(String command, String args) {
        if (command == "" || command == null) {
            System.out.println("No command specified");
            return;
        }
        Shell32X.SHELLEXECUTEINFO execInfo = new Shell32X.SHELLEXECUTEINFO();
        execInfo.lpFile = new WString(command);
        if (args != null)
            execInfo.lpParameters = new WString(args);
        execInfo.nShow = Shell32X.SW_SHOWDEFAULT;
        execInfo.fMask = Shell32X.SEE_MASK_NOCLOSEPROCESS;
        execInfo.lpVerb = new WString("runas");
        boolean result = Shell32X.INSTANCE.ShellExecuteEx(execInfo);

        if (!result) {
            int lastError = Kernel32.INSTANCE.GetLastError();
            String errorMessage = Kernel32Util.formatMessageFromLastErrorCode(lastError);
            throw new RuntimeException("Error performing elevation: " + lastError + ": " + errorMessage + " (apperror="
                    + execInfo.hInstApp + ")");
        }
    }
}