ReactiveSecurityContextHolder.getContext() is empty , unable to getCurrentUserLogin() in any service except Gateway

[deceivingrakesh]

Overview of the issue

Unable to fetch current loggedin user from a reactive microservice using the getCurrentUserLogin() method , except it works in Gateway

Motivation for or Use Case

Need to use current logged in user details in different services

Reproduce the error

When I changed the method getCurrentUserLogin() in SecurityUtils class to

 public static Mono<String> getCurrentUserLogin() {
        return ReactiveSecurityContextHolder.getContext().switchIfEmpty(Mono.error(new IllegalStateException("ReactiveSecurityContext is empty")))
            .map(SecurityContext::getAuthentication)
            .flatMap(authentication -> Mono.justOrEmpty(extractPrincipal(authentication)));
    }

the context is empty .

Related issues

Suggest a Fix

JHipster Version(s)

8.7.3

Browsers and Operating System

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[mshima]

@deceivingrakesh can you provide a PR with the change?

[deceivingrakesh]

I don't have the solution for the problem yet , I'm still not able to get current logged in userId from microservices , other than gateway by using the getCurrentUserLogin() , when I debugged I got to know that ReactiveSecurityContextHolder.getContext() is returning empty inside the getCurrentUserLogin() method .

[deceivingrakesh]

Is there any update on this issue , as of now I'm using Principal object in controller to get UserId .

[mraible]

No update. But if you figure out a solution, please let us know. I'll add a bug bounty to see if that helps get this fixed.

[kamilkrzywanski]

Can someone provide example to reproduce this bug? @mraible @deceivingrakesh

[deceivingrakesh]

@kamilkrzywanski , Generate a new reactive microservice app , and try to get the current logged in username with SecurityUtils.getCurrentUserLogin() method , it's returns empty . It works in Gateway app , but not in any other service .

[kamilkrzywanski]

For me works fine :) It looks like full example is required or you use this method incorrect.

[deceivingrakesh]

@kamilkrzywanski , you are right , If I return a mono , value is present , but if I subscribe to the Mono , I'm unable to use / print it , I guess I'm missing something with reactive / Mono .

@GetMapping(value = "/login", produces = MediaType.APPLICATION_JSON_VALUE)
public Mono getAllOffers(){
SecurityUtils.getCurrentUserLogin()
.subscribe(login -> LOG.info(login));
return SecurityUtils.getCurrentUserLogin();
}

This , SecurityUtils.getCurrentUserLogin().hasElement().subscribe(tof -> LOG.info(tof.toString())); Logs False in console .

Can you help me with this ?

[kamilkrzywanski]

Can you try with

{
return SecurityUtils.getCurrentUserLogin()
.doOnNext(login -> LOG.info("Current user login: {}", login));
}

[kamilkrzywanski]

@deceivingrakesh
I've checked it and looks fine, another way is pass authentication as method parameter like:
public Mono getLogin(Authentication authentication) {
System.out.println(SecurityUtils.extractPrincipal(authentication));
return SecurityUtils.getCurrentUserLogin()
.doOnNext(login -> LOG.info("Current user login: {}", login));
}

[deceivingrakesh]

@kamilkrzywanski it worked for me now , I was doing it wrong , followed your code , This isn't a defect .

[kamilkrzywanski]

https://opencollective.com/generator-jhipster/expenses/231622