Basic Authentication service called By Zuul

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闹比i
闹比i 2021-01-14 23:33

I\'m Zuul as edge server. so all request pass by this edge server. I have a micro-service A. all web services of A are protected by Basic Authentication. How can we call the

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  • 2021-01-15 00:03

    This is my Zuul filter:

    public class BasicAuthorizationHeaderFilter extends ZuulFilter {
    
    
    @Override
    public String filterType() {
        return "pre";
    }
    
    @Override
    public int filterOrder() {
        return 10;
    }
    
    @Override
    public boolean shouldFilter() {
        return true;
    }
    
    @Override
    public Object run() {
    
        RequestContext ctx = RequestContext.getCurrentContext();
        ctx.getRequest().getRequestURL();
        ctx.addZuulRequestHeader("Authorization", "Basic " + Utils.getBase64Credentials("user", "Token"));
        return null;
    }
    
    }
    
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  • 2021-01-15 00:09

    Ideally the requester would have the token in the request.
    If you want to have Zuul add the authentication token then you can create a ZuulFilter and use:

    context.addZuulRequestHeader("Authorization", "base64encodedTokenHere");
    

    Doing this would give open access to the services - which may not be wise.

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  • 2021-01-15 00:14

    You can call (through Zuul) your service A like this :

    https://login:password@zuulurl.com/serviceA
    

    but firslty allow AUTHORIZATION header through Zuul for this specific service (route) with the property sensitiveHeaders in your properties file :

    zuul.routes.serviceA.sensitiveHeaders=Cookie,Set-Cookie
    

    or let it empty if you want to pass the Cookie headers too.

    Here more informations about headers through Zuul

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  • 2021-01-15 00:16
    @Component
    public class PreFilter extends ZuulFilter {
    private static final Logger LOG = LoggerFactory.getLogger(PreFilter.class);
    
    @Override
    public String filterType() {
        return "pre";
    }
    
    @Override
    public int filterOrder() {
        return 1;
    }
    
    @Override
    public boolean shouldFilter() {
        return true;
    }
    
    @Override
    public Object run() {
        RequestContext ctx = RequestContext.getCurrentContext();
        HttpServletRequest request = ctx.getRequest();
        ctx.addZuulRequestHeader("Authorization", request.getHeader("Authorization"));
    
        LOG.info("Parametres : {}", request.getParameterMap()
                .entrySet()
                .stream()
                .map(e -> e.getKey() + "=" + Stream.of(e.getValue()).collect(Collectors.toList()))
                .collect(Collectors.toList()));
        LOG.info("Headers : {}", "Authorization" + "=" + request.getHeader("Authorization"));
        LOG.info(String.format("%s request to %s", request.getMethod(), request.getRequestURL().toString()));
        return null;
        }
    }
    
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  • 2021-01-15 00:20

    This change is little tricky.

    @Override
    public int filterOrder() {
        return 1; // change the return value to more than 5 the above code will work.
    }
    

    try with the final code below:

    @Component
    public class PreFilter extends ZuulFilter {
        private static final Logger LOG = LoggerFactory.getLogger(PreFilter.class);
    
        @Override
        public String filterType() {
            return "pre";
        }
    
        @Override
        public int filterOrder() {
            return 10;
        }
    
        @Override
        public boolean shouldFilter() {
            return true;
        }
    
        @Override
        public Object run() {
            RequestContext ctx = RequestContext.getCurrentContext();
            HttpServletRequest request = ctx.getRequest();
            ctx.addZuulRequestHeader("Authorization", request.getHeader("Authorization"));
            return null;
        }
    }
    
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  • 2021-01-15 00:23

    Use zuul's sensitive header property with the blank value,

    zuul.sensitiveHeaders=
    

    Above property will do the trick but if you want to have filters for Cookie headers you can use that property with values,

    zuul.sensitiveHeaders=Cookie,Set-Cookie
    
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