Is there anything in the basic pedestal template that would cause it not to be accessible on a remote server but working locally through curl on the same server? Trying to figure out what I'm doing wrong. The correct port seems to be open (and does work from curl)

I’m just trying to return 401 from an interceptor but the server responds with 500

the interceptor returns

{:status 401 :body   "Unauthorized"}

which is somewhere in the :body response, but the main response is 500

I don’t get it

"clojure.lang.ExceptionInfo: java.lang.NullPointerException in Interceptor :io.pedestal.http.ring-middlewares/content-type-interceptor - \n\tat io.pedestal.interceptor.chain$throwable__GT_ex_info.invokeStatic(chain.clj:35)\n\tat io.pedestal.interceptor.chain$throwable__GT_ex_info.invoke(chain.clj:32)\n\tat io.pedestal.interceptor.chain$try_f.invokeStatic(chain.clj:57)\n\tat io.pedestal.interceptor.chain$try_f.invoke(chain.clj:44)\n\tat io.pedestal.interceptor.chain$leave_all_with_binding.invokeStatic(chain.clj:254)\n\tat io.pedestal.interceptor.chain$leave_all_with_binding.invoke(chain.clj:237)\n\tat io.pedestal.interceptor.chain$leave_all$fn__7211.invoke(chain.clj:268)\n\tat clojure.lang.AFn.applyToHelper(AFn.java:152)\n\tat clojure.lang.AFn.applyTo(AFn.java:144)\n\tat clojure.core$apply.invokeStatic(core.clj:665)\n\tat clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1973)\n\tat clojure.core$with_bindings_STAR_.doInvoke(core.clj:1973)\n\tat clojure.lang.RestFn.invoke(RestFn.java:425)\n\tat io.pedestal.interceptor.chain$leave_all.invokeStatic(chain.clj:266)\n\tat io.pedestal.interceptor.chain$leave_all.invoke(chain.clj:260)\n\tat io.pedestal.interceptor.chain$execute.invokeStatic(chain.clj:379)\n\tat io.pedestal.interceptor.chain$execute.invoke(chain.clj:352)\n\tat io.pedestal.interceptor.chain$execute.invokeStatic(chain.clj:389)\n\tat io.pedestal.interceptor.chain$execute.invoke(chain.clj:352)\n\tat io.pedestal.http.impl.servlet_interceptor$interceptor_service_fn$fn__10376.invoke(servlet_interceptor.clj:351)\n\tat io.pedestal.http.servlet.FnServlet.service(servlet.clj:28)\n\tat org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:505)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)\n\tat .AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)\n\tat .FillInterest.fillable(FillInterest.java:103)\n\tat .ChannelEndPoint$2.run(ChannelEndPoint.java:117)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)\n\tat org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:698)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:804)\n\tat java.base/java.lang.Thread.run(Thread.java:834)\nCaused by: java.lang.NullPointerException: null\n"

error is so unhelpful no?

@haywood try adding :headers {}

if you don't have that in there, it isn't considered a valid response for the purposes of short-circuiting, so the next interceptor will fire

into the request or the interceptor response

the latter

ok thank you, one sec trying

same error, not sure where the NPE is coming from.

oh, instead of returning {:status 401 :body "Unauthorized" :headers {}} you should assoc that into [ctx :response] (assoc ctx :response <my response map>)

ah.

yea that would make sense

(def basic-auth-interceptor
  (interceptor {:name  ::basic-auth
                :enter (fn [context]
                         (update context :request
                                 (fn [req]
                                   (let [auth-req (basic-authentication-request req basic-auth-fn)]
                                     (if (:basic-authentication auth-req)
                                       auth-req
                                       (assoc context
                                              :request
                                              {:status 401
                                               :headers {}
                                               :body   "Unauthorized"}))))))}))

no dice… still an NPE

you are updating :request instead of :response

where do I venmo you money for wasting your time

lol

just to close this out, had to change my interceptor definition:

(def basic-auth-interceptor
  (interceptor {:name  ::basic-auth
                :enter (fn [context]
                         (let [req      (:request context)
                               auth-req (basic-authentication-request req basic-auth-fn)]
                           (if (:basic-authentication auth-req)
                             (assoc context :request auth-req)
                             (assoc context :response
                                    {:status  401
                                     :headers {}
                                     :body    "Unauthorized"}))))}))

Thank you for opening my eyes to my idiocy