Using java to run command line as %username%

Question

Hi all,
can any one help with this?
I'm trying to run a command line from a database as %username% in Windows. So far I have the following script, courtesy of Frank Naude to build a java class that is published within a plsql procedure. A command line can then be passed to it.
rem -----------------------------------------------------------------------
rem Filename: oscmd.sql
rem Purpose: Execute operating system commands from PL/SQL
rem Notes: Specify full paths to commands, for example,
rem specify /usr/bin/ps instead of ps.
rem Date: 09-Apr-2005
rem Author: Frank Naude, Oracle FAQ
rem -----------------------------------------------------------------------
rem -----------------------------------------------------------------------
rem Grant Java Access to user USER1
rem -----------------------------------------------------------------------
conn sys/password@database as sysdba
EXEC dbms_java.grant_permission('USER1', 'SYS:java.lang.RuntimePermission', 'writeFileDescriptor', '');
EXEC dbms_java.grant_permission('USER1', 'SYS:java.lang.RuntimePermission', 'readFileDescriptor', '');
EXEC dbms_java.grant_permission('USER1', 'SYS:java.io.FilePermission', '/bin/sh', 'execute');
EXEC dbms_java.grant_permission( 'USER1', 'SYS:java.io.FilePermission','C:\WINDOWS\system32\cmd.exe', 'execute' );
rem -----------------------------------------------------------------------
rem Create Java class to execute OS commands...
rem -----------------------------------------------------------------------
conn user1/password@database
CREATE OR REPLACE AND COMPILE JAVA SOURCE NAMED "Host" AS
import java.io.*;
public class Host {
public static void executeCommand(String command) {
try {
String[] finalCommand;
finalCommand = new String[4];
finalCommand[0] = "C:\\WINDOWS\\system32\\cmd.exe";
finalCommand[1] = "/y";
finalCommand[2] = "/c";
finalCommand[3] = command;
// Execute the command...
final Process pr = Runtime.getRuntime().exec(finalCommand);
// Capture output from STDOUT...
BufferedReader br_in = null;
try {
br_in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
String buff = null;
while ((buff = br_in.readLine()) != null) {
System.out.println("stdout: " + buff);
try {Thread.sleep(100); } catch(Exception e) {}
br_in.close();
} catch (IOException ioe) {
System.out.println("Error printing process output.");
ioe.printStackTrace();
} finally {
try {
br_in.close();
} catch (Exception ex) {}
// Capture output from STDERR...
BufferedReader br_err = null;
try {
br_err = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
String buff = null;
while ((buff = br_err.readLine()) != null) {
System.out.println("stderr: " + buff);
try {Thread.sleep(100); } catch(Exception e) {}
br_err.close();
} catch (IOException ioe) {
System.out.println("Error printing execution errors.");
ioe.printStackTrace();
} finally {
try {
br_err.close();
} catch (Exception ex) {}
catch (Exception ex) {
System.out.println(ex.getLocalizedMessage());
show errors
rem -----------------------------------------------------------------------
rem Publish the Java call to PL/SQL...
rem -----------------------------------------------------------------------
CREATE OR REPLACE PROCEDURE host(p_command IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String)';
show errors
rem -----------------------------------------------------------------------
rem Let's test it
rem -----------------------------------------------------------------------
exec host('notepad');
The trouble is although this script works great for commands that can be run is the 'background' as SYSTEM is I want to pass a command to actually open something e.g. notepad in the above example nothing seems to happen. As far as I can make out the command line is running but not as %username% so it's not running notepad.exe in the foreground.
I'm happy to clarify more if necessary.
Can anyone help with this?
Cheers
Yog

Answer 1

Bill,
Thank you for the quick answer. I believe you are right in your assumption.
I have been searching but found nothing so far.
I need to be able to run this line "wmic
Product where name='XXX XXX XXX' call uninstall" 
in an elevated command prompt to uninstall the program.
I was looking for a VB script or PowerShell to execute it remotely on non domain roaming PCs.
Th3e command can be run remotely against stand-alone workstations but you must supply credentials.  Post in the platform forum for you version of Windows for help in using the WMIC utility.  WMIC /? will give you all of the command options fro
remote execution.  UAC only affects local systems.  You cannot use WMIC to remote back to the local system. WMIC does not allow impersonation to the local system.
Most installers will not automatically allow an unattended uninstall.  If there is any dialog at all the uninstall will fail and can hang.
I recommend contacting the vendor of the application to get more information.
In all cases you cannot bypass UAC as Bill has noted.  I am only noting that, sometimes, in a workgroup, you can use WMIC to remotely uninstall an application.
¯\_(ツ)_/¯