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Java Source | 1997-07-13 | 2.1 KB | 65 lines |
- /*
- * Copyright (c) 1995-1997 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
- import java.io.*;
-
- class PasswordSecurityManager extends SecurityManager {
-
- private String password;
-
- PasswordSecurityManager(String password) {
- super();
- this.password = password;
- }
-
- private boolean accessOK() {
- int c;
- DataInputStream dis = new DataInputStream(System.in);
- String response;
-
- System.out.println("What's the secret password?");
- try {
- response = dis.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!");
- }
- }
-