BC-27536: Relay state, and assorted other fixes

Dockerfile

@@ -32,7 +32,7 @@ RUN chown -R app_user:app_user ${APP_DIR}
 USER app_user
 
 FROM ruby:3.1.2-alpine
-RUN apk add --no-cache sqlite-dev
+RUN apk add --no-cache sqlite-dev gcompat
 RUN mkdir /app
 WORKDIR /app
 COPY --from=builder /app/public/ ./public

README.md

@@ -24,7 +24,7 @@ https://user-images.githubusercontent.com/783501/168935031-caab559e-7b5d-4056-96
 #### Docker
 
  1. `docker build . -t saml-ruby-idp`
- 2. `docker run --rm -p9292:9292 samp-ruby-idp`
+ 2. `docker run --rm -p9567:9292 saml-ruby-idp`
 
 #### Ruby
 

app.rb

@@ -56,7 +56,7 @@ def user_ids
   post '/saml-login' do
     decode_request(params[:SAMLRequest])
 
-    @saml_response = encode_response(fake_user)
+    @saml_response = encode_response(fake_user, signed_message: true)
 
     haml :saml_post
   end

src/components/LoginForm.tsx

@@ -10,7 +10,7 @@ import {
   TextInput,
   Title,
 } from "@mantine/core";
-import { getSamlRequest } from "../utils";
+import { getSamlRequest, getRelayState } from "../utils";
 import { Ce, UserCircle } from "tabler-icons-react";
 interface LoginFormProps {
   username?: string;
@@ -31,6 +31,7 @@ const LoginForm: React.FunctionComponent<LoginFormProps> = ({ username }) => {
         onSubmit={() => submitting()}
       >
         <input type="hidden" name="SAMLRequest" value={getSamlRequest()} />
+        <input type="hidden" name="RelayState" value={getRelayState()} />
         <Center>
           <Title order={1}>SAML Mock Identity Provider</Title>
         </Center>

src/utils.tsx

@@ -21,3 +21,10 @@ export const getSamlRequest = (): string => {
 
   return urlParams.get('SAMLRequest') ?? ''
 }
+
+export const getRelayState = (): string => {
+  const queryString = window.location.search
+  const urlParams = new URLSearchParams(queryString)
+
+  return urlParams.get('RelayState') ?? ''
+}

views/saml_post.haml

@@ -7,5 +7,5 @@
   %body{onload: "document.forms[0].submit();", style: "visibility:hidden;"}
     %form{action: saml_acs_url, method: "post"}
       %input{type: "hidden", name: "SAMLResponse", value: @saml_response}
-      %input{type: "hidden", name: "RelayState", value: @relay_state}
+      %input{type: "hidden", name: "RelayState", value: params[:RelayState]}
       %input{type: "submit", value: "Submit"}