support onion and fix lang selection on redirect

app/controllers/application_controller.rb

@@ -56,6 +56,7 @@ class ApplicationController < ActionController::Base
 
   def authorize
     if !current_user
+      set_locale
       page = request.env['PATH_INFO']
       if page != '/'
         redirect_to "/login?p=#{page}"

app/controllers/sessions_controller.rb

@@ -135,4 +135,13 @@ class SessionsController < ApplicationController
       @news_frame = news_frame
     end
   end
+
+  def webmail_url
+    if request.host =~ /ysp4gfuhnmj6b4mb\.onion/
+      "https://webmail.ysp4gfuhnmj6b4mb.onion/"
+    else
+      "https://webmail.immerda.ch/"
+    end
+  end
+  helper_method :webmail_url
 end

app/views/sessions/handoff.html.erb

@@ -10,7 +10,7 @@
 <%= t(:logging_into, target: t("handoff.#{@handoff}")) %>
 <% if @handoff == 'webmail' %>
   <div style="display:none">
-  <%= form_tag("https://webmail.immerda.ch/login.php", method: "post") do %>
+  <%= form_tag(webmail_url+"/login.php", method: "post") do %>
     <%= hidden_field('', :horde_user, :value => @user) %>
     <%= hidden_field('', :horde_pass, :value => @pw) %>
     <%= hidden_field('', :login_post, :value => 1) %>