org.springside.examples.miniweb.service.account.DatabaseRealm.java Source code

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Here is the source code for org.springside.examples.miniweb.service.account.DatabaseRealm.java

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/*
 * 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.springside.examples.miniweb.service.account;

import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authc.SimpleAuthenticationInfo;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.cache.Cache;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.SimplePrincipalCollection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springside.examples.miniweb.entity.account.Group;
import org.springside.examples.miniweb.entity.account.User;

public class DatabaseRealm extends AuthorizingRealm {

    private AccountManager accountManager;

    /**
     * ?,.
     */
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authcToken)
            throws AuthenticationException {
        UsernamePasswordToken token = (UsernamePasswordToken) authcToken;
        User user = accountManager.findUserByLoginName(token.getUsername());
        if (user != null) {
            return new SimpleAuthenticationInfo(user.getLoginName(), user.getPassword(), getName());
        } else {
            return null;
        }
    }

    /**
     * ?, ???.
     */
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        String loginName = (String) principals.fromRealm(getName()).iterator().next();
        User user = accountManager.findUserByLoginName(loginName);
        if (user != null) {
            SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
            for (Group group : user.getGroupList()) {
                info.addStringPermissions(group.getPermissionList());
            }
            return info;
        } else {
            return null;
        }
    }

    /**
     * ??.
     */
    public void clearCachedAuthorizationInfo(String principal) {
        SimplePrincipalCollection principals = new SimplePrincipalCollection(principal, getName());
        clearCachedAuthorizationInfo(principals);
    }

    /**
     * ??.
     */
    public void clearAllCachedAuthorizationInfo() {
        Cache<Object, AuthorizationInfo> cache = getAuthorizationCache();
        if (cache != null) {
            for (Object key : cache.keys()) {
                cache.remove(key);
            }
        }
    }

    @Autowired
    public void setAccountManager(AccountManager accountManager) {
        this.accountManager = accountManager;
    }
}