/*
* Copyright 2010-2011 the original author or authors.
*
* Licensed 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.springsource.greenhouse.config;
import javax.inject.Inject;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.context.annotation.Profile;
import org.springframework.core.env.Environment;
import org.springframework.security.crypto.encrypt.Encryptors;
import org.springframework.security.crypto.encrypt.TextEncryptor;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import com.springsource.greenhouse.account.GreenhousePasswordEncoder;
/**
* Spring Security Configuration.
* Applies the policies that secure the Greenhouse web application.
* <p>
* In embedded mode, we don't bother with any password encoding or data encryption for developer convenience and ease of developer testing.
* We also store temporary OAuth sessions in an in-memory ConcurrentHashMap.
* </p>
* <p>
* In standard mode, we apply standard password encoding (SHA-256 1024 iteration hashing + random salting)
* and encryption (Password-based 256-Bit AES + site-global salt + secure random 16-byte iV handling).
* We store temporary OAuth sessions in the Redis key-value store.
* </p>
* <p>
* Spring Security is currently best configured using its XML namespace, so this class imports a XML file containing most of the configuration information.
* The PasswordEncoder, TextEncryptor, and OAuthSessionManager are configured in Java.
* </p>
* @author Keith Donald
*/
@Configuration
@ImportResource("classpath:com/springsource/greenhouse/config/security.xml")
public class SecurityConfig {
/**
* Embedded Security configuration (not secure).
* @author Keith Donald
*/
@Configuration
@Profile("embedded")
static class Embedded {
@Bean
public PasswordEncoder passwordEncoder() {
return NoOpPasswordEncoder.getInstance();
}
@Bean
public TextEncryptor textEncryptor() {
return Encryptors.noOpText();
}
}
/**
* Standard security configuration (secure).
* @author Keith Donald
*/
@Configuration
@Profile("standard")
static class Standard {
@Inject
private Environment environment;
@Bean
public PasswordEncoder passwordEncoder() {
return new GreenhousePasswordEncoder(getEncryptPassword());
}
@Bean
public TextEncryptor textEncryptor() {
return Encryptors.queryableText(getEncryptPassword(), environment.getProperty("security.encryptSalt"));
}
// helpers
private String getEncryptPassword() {
return environment.getProperty("security.encryptPassword");
}
}
}