com.kevin.blog.service.ShiroDbRealm.java Source code

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Here is the source code for com.kevin.blog.service.ShiroDbRealm.java

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/*******************************************************************************
 * Copyright (c) 2005, 2014 springside.github.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *******************************************************************************/
package com.kevin.blog.service;

import java.io.Serializable;

import javax.annotation.PostConstruct;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.DisabledAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authc.credential.HashedCredentialsMatcher;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.util.ByteSource;
import org.springside.modules.utils.Encodes;

import com.google.common.base.Objects;
import com.kevin.blog.entity.Role;
import com.kevin.blog.entity.User;

public class ShiroDbRealm extends AuthorizingRealm {

    protected UserService userService;

    /**
     * ?,.
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken)
            throws AuthenticationException {
        UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
        User user = userService.findUserByLoginName(token.getUsername());
        if (user != null) {
            if (user.getDisabled()) {
                throw new DisabledAccountException();
            }

            byte[] salt = Encodes.decodeHex(user.getSalt());
            return new SimpleAuthenticationInfo(
                    new ShiroUser(user.getId(), user.getLoginName(), user.getUsername()), user.getPassword(),
                    ByteSource.Util.bytes(salt), getName());
        } else {
            return null;
        }
    }

    /**
     * ?, ???.
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        ShiroUser shiroUser = (ShiroUser) principals.getPrimaryPrincipal();
        User user = userService.findUserByLoginName(shiroUser.loginName);

        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        for (Role role : user.getRoleList()) {
            // Role???
            info.addRole(role.getName());
            // Permission???
            info.addStringPermissions(role.getPermissionList());
        }
        return info;
    }

    /**
     * PasswordHash.
     */
    @PostConstruct
    public void initCredentialsMatcher() {
        HashedCredentialsMatcher matcher = new HashedCredentialsMatcher(UserService.HASH_ALGORITHM);
        matcher.setHashIterations(UserService.HASH_INTERATIONS);

        setCredentialsMatcher(matcher);
    }

    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    /**
     * AuthenticationSubject??????.
     */
    public static class ShiroUser implements Serializable {
        private static final long serialVersionUID = -1373760761780840081L;
        public Long id;
        public String loginName;
        public String username;

        public ShiroUser(Long id, String loginName, String username) {
            this.id = id;
            this.loginName = loginName;
            this.username = username;
        }

        public String getUsername() {
            return username;
        }

        /**
         * <shiro:principal/>.
         */
        @Override
        public String toString() {
            return username;
        }

        /**
         * ?hashCode,?loginName;
         */
        @Override
        public int hashCode() {
            return Objects.hashCode(loginName);
        }

        /**
         * ?equals,?loginName;
         */
        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (obj == null) {
                return false;
            }
            if (getClass() != obj.getClass()) {
                return false;
            }
            ShiroUser other = (ShiroUser) obj;
            if (loginName == null) {
                if (other.loginName != null) {
                    return false;
                }
            } else if (!loginName.equals(other.loginName)) {
                return false;
            }
            return true;
        }
    }
}