Improve communication about signing up on closed pods

fixes #7767

app/assets/stylesheets/help.scss

@@ -106,3 +106,26 @@ ul#help_nav {
     }
   }
 }
+
+.ball{
+    background: image-url('branding/ball.png') no-repeat;
+    background-size: contain;
+    height: 633px;
+    max-width: 100%;
+}
+
+.v-center {
+    display: table;
+    height: 633px;
+  }
+
+.content {
+  display: table-cell;
+  vertical-align: middle;
+
+  h2 {
+    font-size: 35px;
+    margin: 12px;
+    text-align: left;
+  }
+}

app/controllers/registrations_controller.rb

@@ -33,8 +33,12 @@ class RegistrationsController < Devise::RegistrationsController
   def check_registrations_open_or_valid_invite!
     return true if AppConfig.settings.enable_registrations? || invite.try(:can_be_used?)
 
-    flash[:error] = params[:invite] ? t("registrations.invalid_invite") : t("registrations.closed")
-    redirect_to new_user_session_path
+    if params[:invite]
+      flash[:error] = t("registrations.invalid_invite")
+      redirect_to new_user_session_path
+    else
+      redirect_to registration_closed_path
+    end
   end
 
   def invite

app/views/help/registration_closed.html.haml

@@ -0,0 +1,25 @@
+- content_for :page_title do
+  = AppConfig.settings.pod_name + " - " + t("devise.shared.links.sign_up_closed")
+
+.container
+  .row
+    .col-md-10.offset1
+      .col-md-7.hidden-phone
+        %h1.ball
+      .col-md-5.v-center
+        .content
+          %h2
+            = t("devise.shared.links.sign_up_closed")
+
+          != t("help.closed_pod",
+          wiki: link_to("another pod", "https://diasporafoundation.org/getting_started/sign_up"))
+
+          != t("help.find_pods",
+          poduptime: link_to("Poduptime", "https://podupti.me/"))
+
+          != t("help.other_questions",
+          wiki: link_to("Wiki", "https://wiki.diasporafoundation.org/Choosing_a_pod"))
+  
+  
+
+

app/views/help/registration_closed.mobile.haml

@@ -0,0 +1,11 @@
+%h2
+  = t("devise.shared.links.sign_up_closed")
+
+!= t("help.closed_pod",
+  wiki: link_to("another pod", "https://diasporafoundation.org/getting_started/sign_up"))
+
+!= t("help.find_pods",
+  poduptime: link_to("Poduptime", "https://podupti.me/"))
+
+!= t("help.other_questions",
+  wiki: link_to("Wiki", "https://wiki.diasporafoundation.org/Choosing_a_pod"))

app/views/layouts/_header_not_connected.haml

@@ -1,5 +1,5 @@
 %ul.nav.navbar-nav.navbar-right
-  - if AppConfig.settings.enable_registrations? && !current_page?(controller: "/registrations", action: :new)
+  - unless current_page?(controller: "/registrations", action: :new)
     %li= link_to t("devise.shared.links.sign_up"), new_user_registration_path, class: "login"
   - unless current_page?(controller: "/sessions", action: :new)
     %li= link_to t("devise.shared.links.sign_in"), new_user_session_path, class: "login"

config/locales/diaspora/en.yml

@@ -346,6 +346,10 @@ en:
     tutorials: "tutorials"
     tutorial: "tutorial"
     irc: "IRC"
+    closed_pod: "This pod is currently closed to new registrations. However, you can still join the diaspora* network by registering on %{wiki}. Because all pods are interconnected, you will have access to the same content there."
+    find_pods: "You can find pods at %{poduptime}."
+    other_questions: "If you have any other questions regarding choosing a pod, checkout our %{wiki}."
+    choose_another: "Please, choose another pod"
     wiki: "wiki"
     faq: "FAQ"
     markdown: "Markdown"

config/routes.rb

@@ -205,6 +205,7 @@ Rails.application.routes.draw do
 
   # Help
   get 'help' => 'help#faq', :as => 'help'
+  get "help/registration_closed" => "help#registration_closed", :as => "registration_closed"
   get 'help/:topic' => 'help#faq'
 
   #Protocol Url

spec/controllers/registrations_controller_spec.rb

@@ -25,16 +25,14 @@ describe RegistrationsController, type: :controller do
       AppConfig.settings.enable_registrations = false
     end
 
-    it "redirects #new to the login page" do
+    it "redirects #new to the registration closed page" do
       get :new
-      expect(flash[:error]).to eq(I18n.t("registrations.closed"))
-      expect(response).to redirect_to new_user_session_path
+      expect(response).to redirect_to registration_closed_path
     end
 
-    it "redirects #create to the login page" do
+    it "redirects #create to the registration closed page" do
       post :create, params: valid_params
-      expect(flash[:error]).to eq(I18n.t("registrations.closed"))
-      expect(response).to redirect_to new_user_session_path
+      expect(response).to redirect_to registration_closed_path
     end
 
     it "does not redirect if there is a valid invite token" do