com.gemstone.gemfire.internal.security.shiro.CustomAuthRealm.java Source code

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Here is the source code for com.gemstone.gemfire.internal.security.shiro.CustomAuthRealm.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 com.gemstone.gemfire.internal.security.shiro;

import java.security.Principal;
import java.util.Properties;

import org.apache.geode.security.GeodePermission;
import org.apache.geode.security.SecurityManager;
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.Permission;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

import com.gemstone.gemfire.internal.security.GeodeSecurityUtil;
import com.gemstone.gemfire.management.internal.security.ResourceConstants;

public class CustomAuthRealm extends AuthorizingRealm {

    private static final String REALM_NAME = "CUSTOMAUTHREALM";

    private SecurityManager securityManager = null;

    /**
     * The caller must invoke {@link org.apache.geode.security.SecurityManager#init(Properties)}
     * prior to instantiating CustomAuthRealm.
     *
     * @param securityManager instance of SecurityManager which has already been initialized
     */
    public CustomAuthRealm(SecurityManager securityManager) {
        this.securityManager = securityManager;
    }

    /**
     * SecurityManager will be constructed and initialized with the provided security properties.
     *
     * @param authenticatorFactory name of the SecurityManager implementation to construct
     * @param securityProperties the security properties to initialize SecurityManager with
     */
    public CustomAuthRealm(String authenticatorFactory, Properties securityProperties) {
        this.securityManager = GeodeSecurityUtil.getObjectOfTypeFromClassName(authenticatorFactory,
                SecurityManager.class);
        this.securityManager.init(securityProperties);
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        UsernamePasswordToken authToken = (UsernamePasswordToken) token;
        String username = authToken.getUsername();
        String password = new String(authToken.getPassword());

        Properties credentialProps = new Properties();
        credentialProps.put(ResourceConstants.USER_NAME, username);
        credentialProps.put(ResourceConstants.PASSWORD, password);

        Principal principal = securityManager.authenticate(credentialProps);

        return new SimpleAuthenticationInfo(principal, authToken.getPassword(), REALM_NAME);
    }

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        // we intercepted the call to this method by overriding the isPermitted call
        return null;
    }

    @Override
    public boolean isPermitted(PrincipalCollection principals, Permission permission) {
        GeodePermission context = (GeodePermission) permission;
        Principal principal = (Principal) principals.getPrimaryPrincipal();
        return securityManager.authorize(principal, context);
    }

}