com.at.shiro.ShiroMain.java Source code

Introduction

Here is the source code for com.at.shiro.ShiroMain.java

Source

package com.at.shiro;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.*;
import org.apache.shiro.config.IniSecurityManagerFactory;
import org.apache.shiro.mgt.SecurityManager;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.Factory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ShiroMain {
    private static final Logger log = LoggerFactory.getLogger(ShiroMain.class);

    public static void main(String[] args) {

        // All of realms, users, roles and permissions are defined in shiro.ini.
        Factory<SecurityManager> factory = new IniSecurityManagerFactory("classpath:shiro.ini");
        SecurityManager securityManager = factory.getInstance(); // getInstance() is the sole method of Factory  

        // SecurityUtils are the main class of getting Subject.
        SecurityUtils.setSecurityManager(securityManager); // statically holding the instance of SecurityManager

        // get the current user (subject = user)
        Subject currentUser = SecurityUtils.getSubject();

        // shiro session
        Session session = currentUser.getSession();
        session.setAttribute("someKey", "aValue"); // note that the user has not logged in!
        String value = (String) session.getAttribute("someKey");
        if (value.equals("aValue")) {
            log.info("Retrieved the correct value! [" + value + "]");
        }

        // if current user has not logged in.
        if (!currentUser.isAuthenticated()) {
            UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa");
            token.setRememberMe(true); // remember the user across different sessions
            try {
                currentUser.login(token); // login with token
            } catch (UnknownAccountException uae) {
                log.warn("There is no user with username of " + token.getPrincipal());
            } catch (IncorrectCredentialsException ice) {
                log.warn("Password for account " + token.getPrincipal() + " was incorrect!");
            } catch (LockedAccountException lae) {
                log.warn("The account for username " + token.getPrincipal() + " is locked.   "
                        + "Please contact your administrator to unlock it.");
            }
            // ... catch more exceptions here (maybe custom ones specific to your application?
            catch (AuthenticationException ae) {
                //unexpected condition?    error?
                log.warn("Unexpected exception.", ae);
            }
        }

        // print their identifying principal (in this case, a username):
        log.info("User [" + currentUser.getPrincipal() + "] logged in successfully.");

        // check role
        if (currentUser.hasRole("schwartz")) {
            log.info("May the Schwartz be with you!");
        } else {
            log.info("Hello, mere mortal.");
        }

        // check permission (not instance-level)
        if (currentUser.isPermitted("lightsaber:weild")) {
            log.info("You may use a lightsaber ring.  Use it wisely.");
        } else {
            log.info("Sorry, lightsaber rings are for schwartz masters only.");
        }

        // check permission (instance level)
        if (currentUser.isPermitted("winnebago:drive:eagle5")) {
            log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'.   "
                    + "Here are the keys - have fun!");
        } else {
            log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!");
        }

        // destroy the authenticated session
        currentUser.logout();
    }
}