import java.io.*;

public class PasswordSecurityManager extends SecurityManager {
    private String password;
    private BufferedReader stdin;

    public PasswordSecurityManager(String p, BufferedReader b) {
        super();
        this.password = p;
	this.stdin = b;
    }

    private boolean accessOK() {
        String response;

        System.out.print("Password: ");
        try {
            response = stdin.readLine();
            if (response.equals(password))
                return true;
            else
                return false;
        } catch (IOException e) {
            return false;
        }
    }

    public void checkRead(FileDescriptor filedescriptor) {
        if (!accessOK())
            throw new SecurityException("Not a Chance!");
    }

    public void checkRead(String filename) {
        if (!accessOK())
            throw new SecurityException("No Way!");
    }

    public void checkRead(String filename, Object executionContext) {
        if (!accessOK())
            throw new SecurityException("Forget It!");
    }

    public void checkWrite(FileDescriptor filedescriptor) {
        if (!accessOK())
            throw new SecurityException("Not!");
    }

    public void checkWrite(String filename) {
        if (!accessOK())
            throw new SecurityException("Not Even!");
    }
} // PasswordSecurityManager