Gracefully handle wrong capitalization of username

app/controllers/web_key_directory_controller.rb

@@ -1,9 +1,9 @@
 class WebKeyDirectoryController < WellKnownController
-  before_action :allow_cross_origin_requests, only: [ :show ]
+  before_action :allow_cross_origin_requests
 
   # /.well-known/openpgpkey/hu/:hashed_username(.txt)
   def show
-    @user = User.find_by(cn: params[:l])
+    @user = User.find_by(cn: params[:l].downcase)
 
     if @user.nil? ||
        @user.pgp_pubkey.empty? ||
@@ -28,7 +28,4 @@ class WebKeyDirectoryController < WellKnownController
       end
     end
   end
-
-  private
-
 end

app/views/admin/users/show.html.erb

@@ -218,7 +218,7 @@
           <td>XMPP (ejabberd)</td>
           <td>
             <%= render FormElements::ToggleComponent.new(
-              enabled: @services_enabled.include?("xmpp"),
+              enabled: @services_enabled.include?("ejabberd"),
               input_enabled: false
             ) %>
           </td>

spec/requests/web_key_directory_spec.rb

@@ -64,6 +64,15 @@ RSpec.describe "OpenPGP Web Key Directory", type: :request do
         expect(response.body).to eq(expected_binary_data)
       end
 
+      context "with wrong capitalization of username" do
+        it "returns the pubkey as ASCII Armor plain text" do
+          get "/.well-known/openpgpkey/hu/yuca4ky39mhwkjo78qb8zjgbfj1hg3yf?l=JimmY"
+          expect(response).to have_http_status(:ok)
+          expected_binary_data = File.binread("#{Rails.root}/spec/fixtures/files/pgp_key_valid_jimmy.pem")
+          expect(response.body).to eq(expected_binary_data)
+        end
+      end
+
       context "with .txt extension" do
         it "returns the pubkey as ASCII Armor plain text" do
           get "/.well-known/openpgpkey/hu/yuca4ky39mhwkjo78qb8zjgbfj1hg3yf.txt?l=jimmy"