CODEWITHSUNDEEP
spring-mvcnetflix-zuulspring-hateoas
Ginkgochris
Ginkgochris

Reputation: 465

Zuul PredecorationFilter X-Forwarded-Prefix header leads to duplicate path in Spring ForwardedHeaderFilter

SpringBoot 2.3.0, SpringMVC, latest spring-cloud-starter-netflix-zuul.

I have a ZUUL proxy service which has the following rule:

zuul.routes.service1.path=/campaigns/**
zuul.routes.service1.url=http://localhost:8081/campaignmanagement/campaigns

The forwarded request contains correct X-Forwarded-* headers AND the incorrect X-Forwarded-Prefix: "campaigns"

If I request http://proxy:8080/campaigns, the target service (service1), generates this url: http://proxy:8080/campaigns/campaigns when i call

ServletUriComponentsBuilder.fromCurrentRequest().build().toUriString()

(Notice the duplicate "campaigns" path!)

I use the SpringBoot config property server.forward-headers-strategy=FRAMEWORK.

The ForwardedHeaderFilter appends to the current SpringMVC path to the forwardedPrefix:

    private String initRequestUri() {
      return this.forwardedPrefix != null ? this.forwardedPrefix + this.pathHelper.getPathWithinApplication((HttpServletRequest)this.delegate.get()) : null;
    }

Can I do anything here? is ZUUL the problem or the ForwardedHeaderFilter.

Upvotes: 0

Views: 788

Answers (1)

Diego J. J. A.
Diego J. J. A.

Reputation: 3

I have exactly the same problem. I don't know if the only solution is to create a custom Zuul filter to remove this header at the beginning with the highest predence.

I know that it is possible to enable/disable per header with Spring Cloud Gateway but I think is not possible with Zuul.

Upvotes: -1

Related Questions