在应用程序之间共享 Spring Security 配置

发布于 2024-07-26 22:32:41 字数 4604 浏览 6 评论 0原文

我是 Spring 的新手,我从 Apress 的 Spring Recipes 书中获得了大部分知识。

我已经在一个 Web 应用程序中使用 Spring Security 进行 LDAP 身份验证。 然而,我想从这个 web 应用程序中删除我的应用程序上下文 bean 和属性文件,并以某种方式将它们外部化,以便我们所有的 web 应用程序都可以引用相同的 bean。 因此,当我们需要更改某些内容(例如 ldapuser 或 ldap url)时,我们会在一处更改它,其余应用程序就会知道。

更新 我已经实现了 可重新加载 Spring 属性,当属性来自的文件是时,它会重新加载属性感动。 不过,我使用的是加密属性,因此下面是我在可重新加载 Spring 属性之上创建的类。

ReloadingEncryptablePropertyPlaceholderConfigurer.java

package;

import java.util.Properties;
import java.util.Set;

import org.apache.commons.lang.Validate;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.jasypt.encryption.StringEncryptor;
import org.jasypt.util.text.TextEncryptor;
import org.jasypt.properties.PropertyValueEncryptionUtils;

import org.springframework.beans.factory.BeanDefinitionStoreException;

public class ReloadingEncryptablePropertyPlaceholderConfigurer extends ReloadingPropertyPlaceholderConfigurer {

    protected final Log logger = LogFactory.getLog(getClass());
    private final StringEncryptor stringEncryptor;
    private final TextEncryptor textEncryptor;

    public ReloadingEncryptablePropertyPlaceholderConfigurer(TextEncryptor textEncryptor) {
        super();
        logger.info("Creating configurer with TextEncryptor");
        Validate.notNull(textEncryptor, "Encryptor cannot be null");
        this.stringEncryptor = null;
        this.textEncryptor = textEncryptor;
    }

    public ReloadingEncryptablePropertyPlaceholderConfigurer(StringEncryptor stringEncryptor) {
        super();
        logger.info("Creating configurer with StringEncryptor");
        Validate.notNull(stringEncryptor, "Encryptor cannot be null");
        this.stringEncryptor = stringEncryptor;
        this.textEncryptor = null;
    }

    @Override
    protected String convertPropertyValue(String originalValue) {
        if (!PropertyValueEncryptionUtils.isEncryptedValue(originalValue)) {
            return originalValue;
        }
        if (this.stringEncryptor != null) {
            return PropertyValueEncryptionUtils.decrypt(originalValue, this.stringEncryptor);
        }
        return PropertyValueEncryptionUtils.decrypt(originalValue, this.textEncryptor);
    }

    @Override
    protected String parseStringValue(String strVal, Properties props, Set visitedPlaceholders) throws BeanDefinitionStoreException {
        return convertPropertyValue(super.parseStringValue(strVal, props, visitedPlaceholders));
    }
}

下面是我在 securityContext.xml 中使用它的方法:

<bean id="securityContextSource" class="org.springframework.security.ldap.DefaultSpringSecurityContextSource">
    <constructor-arg value="ldaps://ldapserver" />
    <property name="urls" value="#{ldap.urls}" />
</bean>

<bean id="timer" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
        <bean id="reloadProperties" class="org.springframework.scheduling.timer.ScheduledTimerTask">
            <property name="period" value="1000"/>
            <property name="runnable">
                <bean class="ReloadConfiguration">
                    <property name="reconfigurableBeans">
                        <list>
                            <ref bean="configproperties"/>
                        </list>
                    </property>
                </bean>
            </property>
        </bean>
    </property>
</bean>

<bean id="configproperties" class="ReloadablePropertiesFactoryBean">
    <property name="location" value="classpath:ldap.properties"/>
</bean>

<bean id="ldapPropertyConfigurer" class="ReloadingEncryptablePropertyPlaceholderConfigurer">
    <constructor-arg ref="configurationEncryptor" />
    <property name="ignoreUnresolvablePlaceholders" value="true" />
    <property name="properties" ref="configproperties"/>
</bean>

<bean id="jasyptConfig" class="org.jasypt.encryption.pbe.config.SimpleStringPBEConfig">
    <property name="algorithm" value="PBEWithMD5AndTripleDES" />
    <property name="password" value="########" />
</bean>

<bean id="configurationEncryptor" class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
    <property name="config" ref="jasyptConfig" />
</bean>

I'm brand spanking new at Spring and have gotten a majority of the knowledge I do have from the Spring Recipes book from Apress.

I've got LDAP authentication working with Spring Security within one webapp. I would like to rip out my application context beans and properties files from this one webapp, however, and somehow externalize them so that all of our webapps can reference the same beans. So when we need to change something (like the ldapuser or the ldap urls), we change it in one place and the rest of the apps just know.

UPDATE
I've implemented Reloadable Spring Properties which is reloading properties when the files they come from are touched. I am using encrypted properties, however, so below is class I created on top of the Reloadable Spring Properties ones.

ReloadingEncryptablePropertyPlaceholderConfigurer.java

package;

import java.util.Properties;
import java.util.Set;

import org.apache.commons.lang.Validate;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.jasypt.encryption.StringEncryptor;
import org.jasypt.util.text.TextEncryptor;
import org.jasypt.properties.PropertyValueEncryptionUtils;

import org.springframework.beans.factory.BeanDefinitionStoreException;

public class ReloadingEncryptablePropertyPlaceholderConfigurer extends ReloadingPropertyPlaceholderConfigurer {

    protected final Log logger = LogFactory.getLog(getClass());
    private final StringEncryptor stringEncryptor;
    private final TextEncryptor textEncryptor;

    public ReloadingEncryptablePropertyPlaceholderConfigurer(TextEncryptor textEncryptor) {
        super();
        logger.info("Creating configurer with TextEncryptor");
        Validate.notNull(textEncryptor, "Encryptor cannot be null");
        this.stringEncryptor = null;
        this.textEncryptor = textEncryptor;
    }

    public ReloadingEncryptablePropertyPlaceholderConfigurer(StringEncryptor stringEncryptor) {
        super();
        logger.info("Creating configurer with StringEncryptor");
        Validate.notNull(stringEncryptor, "Encryptor cannot be null");
        this.stringEncryptor = stringEncryptor;
        this.textEncryptor = null;
    }

    @Override
    protected String convertPropertyValue(String originalValue) {
        if (!PropertyValueEncryptionUtils.isEncryptedValue(originalValue)) {
            return originalValue;
        }
        if (this.stringEncryptor != null) {
            return PropertyValueEncryptionUtils.decrypt(originalValue, this.stringEncryptor);
        }
        return PropertyValueEncryptionUtils.decrypt(originalValue, this.textEncryptor);
    }

    @Override
    protected String parseStringValue(String strVal, Properties props, Set visitedPlaceholders) throws BeanDefinitionStoreException {
        return convertPropertyValue(super.parseStringValue(strVal, props, visitedPlaceholders));
    }
}

And here's how I use it in my securityContext.xml:

<bean id="securityContextSource" class="org.springframework.security.ldap.DefaultSpringSecurityContextSource">
    <constructor-arg value="ldaps://ldapserver" />
    <property name="urls" value="#{ldap.urls}" />
</bean>

<bean id="timer" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
        <bean id="reloadProperties" class="org.springframework.scheduling.timer.ScheduledTimerTask">
            <property name="period" value="1000"/>
            <property name="runnable">
                <bean class="ReloadConfiguration">
                    <property name="reconfigurableBeans">
                        <list>
                            <ref bean="configproperties"/>
                        </list>
                    </property>
                </bean>
            </property>
        </bean>
    </property>
</bean>

<bean id="configproperties" class="ReloadablePropertiesFactoryBean">
    <property name="location" value="classpath:ldap.properties"/>
</bean>

<bean id="ldapPropertyConfigurer" class="ReloadingEncryptablePropertyPlaceholderConfigurer">
    <constructor-arg ref="configurationEncryptor" />
    <property name="ignoreUnresolvablePlaceholders" value="true" />
    <property name="properties" ref="configproperties"/>
</bean>

<bean id="jasyptConfig" class="org.jasypt.encryption.pbe.config.SimpleStringPBEConfig">
    <property name="algorithm" value="PBEWithMD5AndTripleDES" />
    <property name="password" value="########" />
</bean>

<bean id="configurationEncryptor" class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
    <property name="config" ref="jasyptConfig" />
</bean>

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评论(2

假面具 2024-08-02 22:32:41

怎么样:

  • 编写一个返回列表的方法
    LDAP 服务器 - 从
    数据库表或属性文件
  • 通过 jndi 公开此方法,并使用它将服务器列表注入到您的 spring 配置中。
  • 如果您需要动态刷新 ldap 服务器,您可以定期进行作业轮询以进行更改,或者有一个管理网页或jmx bean 来触发更新。 请注意这两种方法的并发问题(在更新时读取列表)

How about:

  • Writing a method that returns a list
    of LDAP servers - reading from a
    database table or property files
  • expose this wethod via jndi and use it to inject a list of the servers into your spring config
  • If you need the ldap servers to be refreshed dynamically you could have a job poll for changes periodically or else have an admin webpage or jmx bean to trigger the update. Be careful of concurrency isses for both these methods (something reading the list while you are updating)
浮华 2024-08-02 22:32:41

那不是 Spring Security 吗? 它可以处理 LDAP。 如果你让它成为每个人都使用的一项安全服务,这不就是管理它的方式吗?

Wouldn't that be Spring Security? It can deal with LDAPs. And if you make it one security service that everyone uses, wouldn't that be the way to manage it?

~没有更多了~
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