要使用Spring LDAP API进行身份验证,您需要完成以下步骤:
首先,您需要将Spring LDAP库添加到您的项目中。您可以通过将以下依赖项添加到您的构建文件(如Maven或Gradle)来完成此操作:
Maven:
<dependency>
<groupId>org.springframework.ldap</groupId>
<artifactId>spring-ldap-core</artifactId>
<version>2.3.1.RELEASE</version>
</dependency>
Gradle:
implementation 'org.springframework.ldap:spring-ldap-core:2.3.1.RELEASE'
在Spring Boot应用程序中,您可以在application.properties
文件中添加以下属性来配置LDAP连接:
ldap.url=ldap://localhost:389
ldap.base.dn=dc=my-domain,dc=com
ldap.user.dn=cn=admin,dc=my-domain,dc=com
ldap.password=admin_password
您可以根据您的LDAP服务器配置进行相应的更改。
创建一个实现AuthenticationProvider
接口的类,并重写authenticate
方法。在此方法中,您可以使用Spring LDAP API执行LDAP身份验证。
import org.springframework.beans.factory.annotation.Value;
import org.springframework.ldap.core.DirContextOperations;
import org.springframework.ldap.core.LdapTemplate;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.stereotype.Component;
@Component
public class LdapAuthenticationProvider implements AuthenticationProvider {
@Value("${ldap.user.dn}")
private String ldapUserDn;
@Autowired
private LdapTemplate ldapTemplate;
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
String username = authentication.getName();
String password = authentication.getCredentials().toString();
DirContextOperations context;
try {
context = ldapTemplate.authenticate(ldapUserDn, "(uid={0})", new Object[]{username}, password);
} catch (Exception e) {
throw new BadCredentialsException("Invalid LDAP username or password");
}
if (context == null) {
throw new BadCredentialsException("Invalid LDAP username or password");
}
return new UsernamePasswordAuthenticationToken(username, password, authentication.getAuthorities());
}
@Override
public boolean supports(Class<?> authentication) {
return authentication.equals(UsernamePasswordAuthenticationToken.class);
}
}
请注意,上面的代码使用了LdapTemplate
来执行LDAP身份验证。您可以在您的应用程序中注入此bean。
在您的Spring Security配置类中,将LdapAuthenticationProvider
添加到身份验证管理器中。
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
private LdapAuthenticationProvider ldapAuthenticationProvider;
@Override
protected void configure(AuthenticationManagerBuilder auth) {
auth.authenticationProvider(ldapAuthenticationProvider);
}
// ...
}
现在,您可以使用Spring Security进行基于LDAP的身份验证了。