我希望每次通过 feign 客户端发出请求时,都为经过身份验证的用户设置一个特定的标头。
这是我的过滤器,我从中获取身份验证并将其设置为 spring 安全上下文:
@EnableEurekaClient
@SpringBootApplication
@EnableFeignClients
public class PerformanceApplication {
@Bean
public Filter requestDetailsFilter() {
return new RequestDetailsFilter();
}
public static void main(String[] args) {
SpringApplication.run(PerformanceApplication.class, args);
}
private class RequestDetailsFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
String userName = ((HttpServletRequest)servletRequest).getHeader("Z-User-Details");
String pass = ((HttpServletRequest)servletRequest).getHeader("X-User-Details");
if (pass != null)
pass = decrypt(pass);
SecurityContext secure = new SecurityContextImpl();
org.springframework.security.core.Authentication token = new UsernamePasswordAuthenticationToken(userName, pass);
secure. setAuthentication(token);
SecurityContextHolder.setContext(secure);
filterChain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
}
}
private String decrypt(String str) {
try {
Cipher dcipher = new NullCipher();
// Decode base64 to get bytes
byte[] dec = new sun.misc.BASE64Decoder().decodeBuffer(str);
// Decrypt
byte[] utf8 = dcipher.doFinal(dec);
// Decode using utf-8
return new String(utf8, "UTF8");
} catch (javax.crypto.BadPaddingException e) {
} catch (IllegalBlockSizeException e) {
} catch (UnsupportedEncodingException e) {
} catch (java.io.IOException e) {
}
return null;
}
}
这是我的假客户:
@FeignClient("holiday-client")
public interface EmailClient {
@RequestMapping(value = "/api/email/send", method = RequestMethod.POST)
void sendEmail(@RequestBody Email email);
}
在这里我有一个请求拦截器:
@Component
public class FeignRequestInterceptor implements RequestInterceptor {
private String headerValue;
public FeignRequestInterceptor() {
}
public FeignRequestInterceptor(String username, String password) {
this(username, password, ISO_8859_1);
}
public FeignRequestInterceptor(String username, String password, Charset charset) {
checkNotNull(username, "username");
checkNotNull(password, "password");
this.headerValue = "Basic " + base64encode((username + ":" + password).getBytes(charset));
}
private static String base64encode(byte[] bytes) {
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(bytes);
}
@Override
public void apply(RequestTemplate requestTemplate) {
requestTemplate.header("Authorization", headerValue);
}
}
我不知道如何为我的客户端配置此拦截器以及如何使用用户名和密码设置标头。我怎样才能做到这一点?