如果未指定BacicAuth的标头,我希望我的授权机制返回默认用户。我试图这样做:
@Override
public Optional<User> authenticate(final BasicCredentials basicCredentials) throws AuthenticationException {
String email = basicCredentials.getUsername();
String plaintextPassword = basicCredentials.getPassword();
final Optional<User> user = Optional.of(userDao.getUserByEmail(email));
if (user.isPresent()) {
return user;
}
else {
return Optional.of(defaultUser);
}
}
但是,以某种方式,当我没有适当的标头进行请求时,我仍然会收到401。
我该如何运作?
最佳答案
因此,如果没有基本身份验证标头,则将空BasicCredentials
传递给预身份验证过程,这将导致自动的未授权错误响应。因此,我们需要确保有一个标题。为此,您可以注册在Dropwizard auth过滤器之前执行的Jersey过滤器。在那里,我们可以添加带有默认用户名和密码的标题。
import java.io.IOException;
import javax.annotation.Priority;
import javax.ws.rs.Priorities;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.core.HttpHeaders;
import org.glassfish.jersey.internal.util.Base64;
@Priority(Priorities.AUTHENTICATION - 100)
public class PreAuthenticationFilter implements ContainerRequestFilter {
@Override
public void filter(ContainerRequestContext request) throws IOException {
boolean hasValidHeader = false;
if (request.getHeaders().containsKey(HttpHeaders.AUTHORIZATION)) {
final String header = request.getHeaderString(HttpHeaders.AUTHORIZATION);
if (header.toLowerCase().startsWith("basic")) {
hasValidHeader = true;
}
}
if (!hasValidHeader) {
final String defaultUser = "defaultUser";
final String defaultPassword = "defaultPassword";
final String base64 = Base64.encodeAsString(defaultUser + ":" + defaultPassword);
request.getHeaders().putSingle(HttpHeaders.AUTHORIZATION, "Basic " + base64);
}
}
}
然后只需向DW
env.jersey().register(PreAuthenticationFilter.class);
注册