图形验证码认证
1.添加过滤器认证
1.1 生成一张图形验证码
Kaptcha 是谷歌提供的一个生成图形验证码的 jar 包, 只要简单配置属性就可以生成。
参考 ：https://github.com/penggle/kaptcha
- 添加Kaptcha依赖
<!--短信验证码-->
<dependency>
<groupId>com.github.penggle</groupId>
<artifactId>kaptcha</artifactId>
</dependency>
- 生成验证码配置类，在模块中创建KaptchaImageCodeConfig
@Configuration
public class KaptchaImageCodeConfig {
@Bean
public DefaultKaptcha getDefaultKaptcha(){
DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
Properties properties = new Properties();
properties.setProperty(Constants.KAPTCHA_BORDER, "yes");
properties.setProperty(Constants.KAPTCHA_BORDER_COLOR, "192,192,192");
properties.setProperty(Constants.KAPTCHA_IMAGE_WIDTH, "110");
properties.setProperty(Constants.KAPTCHA_IMAGE_HEIGHT, "36");
properties.setProperty(Constants.KAPTCHA_TEXTPRODUCER_FONT_COLOR, "blue");
properties.setProperty(Constants.KAPTCHA_TEXTPRODUCER_FONT_SIZE, "28");
properties.setProperty(Constants.KAPTCHA_TEXTPRODUCER_FONT_NAMES, "宋体");
properties.setProperty(Constants.KAPTCHA_TEXTPRODUCER_CHAR_LENGTH, "4");
// 图片效果
properties.setProperty(Constants.KAPTCHA_OBSCURIFICATOR_IMPL,
"com.google.code.kaptcha.impl.ShadowGimpy");
Config config = new Config(properties);
defaultKaptcha.setConfig(config);
return defaultKaptcha;
}
}
- 在CustomLoginController 提供请求接口，将验证码图片数据流写出
@Autowired
private DefaultKaptcha defaultKaptcha;
/**
* 获取图形验证码
*/
@RequestMapping("/code/image")
public void imageCode(HttpServletRequest request, HttpServletResponse response) throws
IOException {
// 1. 获取验证码字符串
String code = defaultKaptcha.createText();
logger.info("生成的图形验证码是：" + code);
// 2. 字符串把它放到session中
request.getSession().setAttribute(SESSION_KEY , code);
// 3. 获取验证码图片
BufferedImage image = defaultKaptcha.createImage(code);
// 4. 将验证码图片把它写出去
ServletOutputStream out = response.getOutputStream();
ImageIO.write(image, "jpg", out);
}
- 在 SpringSecurityConfig.configure(HttpSecurity http) 放行 /code/image 资源权限
.antMatchers(securityProperties.getAuthentication().getLoginPage(),
"/code/image").permitAll()
1.2 实现验证码校验过滤器
- 创建ImageCodeValidateFilter，继承OncePerRequestFilter （在所有请求前都被调用一次）
- 如果是登录请求（请求地址：/login/form，请求方式：post），校验验证码输入是否正确校验不合法时，提示信息通过自定义异常 ValidateCodeExcetipn抛出,此异常要继承org.springframework.security.core.AuthenticationException,它是认证的父异常类。
捕获ImageCodeException异常，交给失败处理器 CustomAuthenticationFailureHandler。 - 如果非登录请求，则放行请求 filterChain.doFilter(request, response)
/**
* @author WGR
* @create 2021/5/7 -- 16:08
*/
@Component
public class ImageCodeValidateFilter extends OncePerRequestFilter {
@Autowired
SecurityProperties securityProperties;
@Autowired
CustomAuthenticationFailureHandler customAuthenticationFailureHandler;
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
// 1. 如果是post方式 的登录请求，则校验输入的验证码是否正确
if (securityProperties.getAuthentication().getLoginProcessingUrl()
.equals(request.getRequestURI())
&& request.getMethod().equalsIgnoreCase("post")) {
try {
// 校验验证码合法性
validate(request);
} catch (AuthenticationException e) {
// 交给失败处理器进行处理异常
customAuthenticationFailureHandler.onAuthenticationFailure(request, response, e);
// 一定要记得结束
return;
}
}
// 放行请求
filterChain.doFilter(request, response);
}
private void validate(HttpServletRequest request) {
// 先获取seesion中的验证码
String sessionCode = (String) request.getSession().getAttribute(CustomLoginController.SESSION_KEY);
// 获取用户输入的验证码
String inpuCode = request.getParameter("code");
// 判断是否正确
if (StringUtils.isBlank(inpuCode)) {
throw new ValidateCodeException("验证码不能为空");
}
if (!inpuCode.equalsIgnoreCase(sessionCode)) {
throw new ValidateCodeException("验证码输入错误");
}
}
}
1.3 创建验证码异常类
创建ValidateCodeExcetipn 异常类，它继承AuthenticationException特别注意是：org.springframework.security.core.AuthenticationException
/**
* @author WGR
* @create 2021/5/7 -- 16:15
*/
public class ValidateCodeException extends AuthenticationException {
public ValidateCodeException(String msg, Throwable t) {
super(msg, t);
}
public ValidateCodeException(String msg) {
super(msg);
}
}
1.4 重构SpringSecurityConfig
将校验过滤器 imageCodeValidateFilter 添加到UsernamePasswordAuthenticationFilter 前面
http.addFilterBefore(imageCodeValidateFilter,
UsernamePasswordAuthenticationFilter.class)
.formLogin()
2.自定义认证
2.1 请求的简单流程
请求过程如图
说明:
Authentication中包含主体权限列表，主体凭据，主体的详细信息，及是否验证成功等。
AuthenticationProvider被SpringSecurity定义为一个验证过程。
ProviderManager管理多个AuthenticationProvider。
当我们自定义的时候，Authentication还可以携带额外的数据
public interface Authentication extends Principal, Serializable {
Collection<? extends GrantedAuthority> getAuthorities();
Object getCredentials();
//允许携带任意对象
Object getDetails();
Object getPrincipal();
boolean isAuthenticated();
void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException;
}
其中ProviderManager是由UsernamePasswordAuthenticationFilter调用的，也就是说所有AuthenticationProvider包含的Authentication都来源于UsernamePasswordAuthenticationFilter。
public Authentication attemptAuthentication(HttpServletRequest request,
HttpServletResponse response) throws AuthenticationException {
if (postOnly && !request.getMethod().equals("POST")) {
throw new AuthenticationServiceException(
"Authentication method not supported: " + request.getMethod());
}
String username = obtainUsername(request);
String password = obtainPassword(request);
if (username == null) {
username = "";
}
if (password == null) {
password = "";
}
username = username.trim();
UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(
username, password);
// Allow subclasses to set the "details" property
setDetails(request, authRequest);
return this.getAuthenticationManager().authenticate(authRequest);
}
protected void setDetails(HttpServletRequest request,
UsernamePasswordAuthenticationToken authRequest) {
authRequest.setDetails(authenticationDetailsSource.buildDetails(request));
}
从上面的源码中看出，用户的详细信息是由authenticationDetailsSource构建的
public class WebAuthenticationDetailsSource implements
AuthenticationDetailsSource<HttpServletRequest, WebAuthenticationDetails> {
// ~ Methods
// ========================================================================================================
/**
* @param context the {@code HttpServletRequest} object.
* @return the {@code WebAuthenticationDetails} containing information about the
* current request
*/
public WebAuthenticationDetails buildDetails(HttpServletRequest context) {
return new WebAuthenticationDetails(context);
}
}
public WebAuthenticationDetails(HttpServletRequest request) {
this.remoteAddress = request.getRemoteAddr();
HttpSession session = request.getSession(false);
this.sessionId = (session != null) ? session.getId() : null;
}
携带了session和ip地址。
2.2 代码
/**
* @author WGR
* @create 2021/5/8 -- 10:48
*/
public class MyWebAuthenticationDetails extends WebAuthenticationDetails {
private boolean imageCodeIsRight = false;
public boolean isImageCodeIsRight() {
return imageCodeIsRight;
}
public MyWebAuthenticationDetails(HttpServletRequest request) {
super(request);
// 先获取seesion中的验证码
String sessionCode = (String) request.getSession().getAttribute(CustomLoginController.SESSION_KEY);
// 获取用户输入的验证码
String inpuCode = request.getParameter("code");
System.out.println(inpuCode);
System.out.println(sessionCode);
if(inpuCode.equals(sessionCode)){
imageCodeIsRight = true;
}
System.out.println(imageCodeIsRight);
}
}
/**
* @author WGR
* @create 2021/5/8 -- 10:55
*/
@Component
public class MyWebAuthenticationDetailsSource implements
AuthenticationDetailsSource<HttpServletRequest, WebAuthenticationDetails> {
@Override
public WebAuthenticationDetails buildDetails(HttpServletRequest context) {
return new MyWebAuthenticationDetails(context);
}
}
/**
* @author WGR
* @create 2021/5/8 -- 10:41
*/
@Component
public class MyAuthenticationProvider extends DaoAuthenticationProvider {
public MyAuthenticationProvider(UserDetailsService userDetailsService, PasswordEncoder passwordEncoder) {
this.setUserDetailsService(userDetailsService);
this.setPasswordEncoder(passwordEncoder);
}
@Override
protected void additionalAuthenticationChecks(UserDetails userDetails, UsernamePasswordAuthenticationToken authentication) throws AuthenticationException {
MyWebAuthenticationDetails details = (MyWebAuthenticationDetails)authentication.getDetails();
if(!details.isImageCodeIsRight()){
throw new ValidateCodeException("验证码输入错误");
}
super.additionalAuthenticationChecks(userDetails, authentication);
}
}
修改配置类
@Configuration
@EnableWebSecurity // 开启springsecurity过滤链 filter
public class SpringSecurityConfig2 extends WebSecurityConfigurerAdapter {
Logger logger = LoggerFactory.getLogger(getClass());
@Autowired
private SecurityProperties securityProperties;
@Autowired
private CustomAuthenticationSuccessHandler2 customAuthenticationSuccessHandler;
@Autowired
private CustomAuthenticationFailureHandler2 customAuthenticationFailureHandler;
@Autowired
AuthenticationDetailsSource<HttpServletRequest, WebAuthenticationDetails> myAuthenticationDetailsSource;
@Autowired
AuthenticationProvider authenticationProvider;
@Autowired
private DataSource dataSource;
@Bean
public PasswordEncoder passwordEncoder() {
// 明文+随机盐值》加密存储
return new BCryptPasswordEncoder();
}
@Bean
public JdbcTokenRepositoryImpl jdbcTokenRepository(){
JdbcTokenRepositoryImpl jdbcTokenRepository = new JdbcTokenRepositoryImpl();
jdbcTokenRepository.setDataSource(dataSource);
return jdbcTokenRepository;
}
/**
* 认证管理器：
* 1. 认证信息（用户名，密码）
*
* @param auth
* @throws Exception
*/
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(authenticationProvider);
}
@Override
protected void configure(HttpSecurity http) throws Exception {
// http.httpBasic() // 采用 httpBasic认证方式
http.formLogin().authenticationDetailsSource(myAuthenticationDetailsSource) // 表单登录方式
.loginPage(securityProperties.getAuthentication().getLoginPage())
.loginProcessingUrl(securityProperties.getAuthentication().getLoginProcessingUrl()) // 登录表单提交处理url, 默认是/login
.usernameParameter(securityProperties.getAuthentication().getUsernameParameter()) //默认的是 username
.passwordParameter(securityProperties.getAuthentication().getPasswordParameter()) // 默认的是 password
.successHandler(customAuthenticationSuccessHandler)
.failureHandler(customAuthenticationFailureHandler)
.and()
.authorizeRequests() // 认证请求
.antMatchers(securityProperties.getAuthentication().getLoginPage(),"/code/image").permitAll() // 放行/login/page不需要认证可访问
//这里图片不放行的话就会看不见
.anyRequest().authenticated() //所有访问该应用的http请求都要通过身份认证才可以访问
.and()
.rememberMe().tokenRepository(jdbcTokenRepository()).tokenValiditySeconds(60*60*24*7)
; // 注意不要少了分号
}
/**
* * 释放静态资源
* * @param web
*
*/
@Override
public void configure(WebSecurity web) {
web.ignoring().antMatchers("/dist/**", "/modules/**", "/plugins/**");
}
}