feat: Fetching the portal data related to a specific custom domain (#5249)

app/controllers/dashboard_controller.rb

@@ -4,6 +4,7 @@ class DashboardController < ActionController::Base
   before_action :set_global_config
   around_action :switch_locale
   before_action :ensure_installation_onboarding, only: [:index]
+  before_action :redirect_to_custom_domain_page
 
   layout 'vueapp'
 
@@ -37,6 +38,15 @@ class DashboardController < ActionController::Base
     redirect_to '/installation/onboarding' if ::Redis::Alfred.get(::Redis::Alfred::CHATWOOT_INSTALLATION_ONBOARDING)
   end
 
+  def redirect_to_custom_domain_page
+    custom_domain = request.host
+    portal = Portal.find_by(custom_domain: custom_domain)
+
+    return unless portal
+
+    redirect_to "/hc/#{portal.slug}"
+  end
+
   def app_config
     {
       APP_VERSION: Chatwoot.config[:version],