Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ package org.cube.core.security; import java.io.Serializable; import javax.annotation.PostConstruct; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; 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.SimpleAuthenticationInfo; import org.apache.shiro.authc.UsernamePasswordToken; import org.apache.shiro.authc.credential.HashedCredentialsMatcher; import org.apache.shiro.authc.credential.PasswordService; import org.apache.shiro.authz.AuthorizationInfo; import org.apache.shiro.authz.SimpleAuthorizationInfo; import org.apache.shiro.realm.AuthorizingRealm; import org.apache.shiro.subject.PrincipalCollection; import org.apache.shiro.subject.SimplePrincipalCollection; import org.apache.shiro.util.ByteSource; import org.cube.core.common.utils.Encodes; import org.cube.core.security.utils.Digests; import org.cube.core.uom.model.Role; import org.cube.core.uom.model.User; import org.cube.core.uom.service.AccountManager; public class ShiroDbRealm extends AuthorizingRealm { private static final int INTERATIONS = 1024; private static final int SALT_SIZE = 8; private static final String ALGORITHM = "SHA-1"; protected AccountManager accountManager; protected PasswordService passwordService; /** * ?,. */ @Override protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken) throws AuthenticationException { UsernamePasswordToken token = (UsernamePasswordToken) authcToken; User user = accountManager.findUserByLoginName(token.getUsername()); if (user != null) { if (user.getUserStatus() == 0) {// ? throw new DisabledAccountException(); } byte[] salt = Encodes.decodeHex(user.getSalt()); return new SimpleAuthenticationInfo(new ShiroUser(user.getUserName(), user.getRealName()), user.getUserPassword(), ByteSource.Util.bytes(salt), getName()); } else { return null; } } /** * ?, ???. */ @Override protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { ShiroUser shiroUser = (ShiroUser) principals.fromRealm(getName()).iterator().next(); User user = accountManager.findUserByLoginName(shiroUser.loginName); if (user != null) { SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); for (Role role : user.getRoleList()) { // Role??? info.addRole(role.getRoleName()); } return info; } else { return null; } } /** * ??. */ public void clearCachedAuthorizationInfo(String principal) { SimplePrincipalCollection principals = new SimplePrincipalCollection(new ShiroUser(principal, null), getName()); clearCachedAuthorizationInfo(principals); } public HashPassword encrypt(String plainText) { HashPassword result = new HashPassword(); byte[] salt = Digests.generateSalt(SALT_SIZE); result.salt = Encodes.encodeHex(salt); byte[] hashPassword = Digests.sha1(plainText.getBytes(), salt, INTERATIONS); result.password = Encodes.encodeHex(hashPassword); return result; } @PostConstruct public void initCredentialsMatcher() { HashedCredentialsMatcher matcher = new HashedCredentialsMatcher(ALGORITHM); matcher.setHashIterations(INTERATIONS); setCredentialsMatcher(matcher); } public void setAccountManager(AccountManager accountManager) { this.accountManager = accountManager; } public static class HashPassword { public String salt; public String password; } /** * AuthenticationSubject??????. */ public static class ShiroUser implements Serializable { private static final long serialVersionUID = -1373760761780840081L; public String loginName; public String name; public ShiroUser(String loginName, String name) { this.loginName = loginName; this.name = name; } public String getName() { return name; } public String getLoginName() { return loginName; } /** * <shiro:principal/>. */ @Override public String toString() { return loginName; } /** * ?equals,?loginName; */ @Override public int hashCode() { return HashCodeBuilder.reflectionHashCode(this, "loginName"); } /** * ?equals,?loginName */ @Override public boolean equals(Object obj) { return EqualsBuilder.reflectionEquals(this, obj, "loginName"); } } }