Add embed options to disable redirect to either rfcs or feedback

app/controllers/concerns/lti.rb

@@ -173,17 +173,19 @@ module Lti
 
   def set_embedding_options
     @embed_options = {}
-    [:hide_navbar,
+    %i[hide_navbar
-     :hide_exercise_description,
+       hide_exercise_description
-     :disable_run,
+       disable_run
-     :disable_score,
+       disable_score
-     :disable_rfc,
+       disable_rfc
-     :disable_interventions,
+       disable_redirect_to_rfcs
-     :hide_sidebar,
+       disable_redirect_to_feedback
-     :read_only,
+       disable_interventions
-     :hide_test_results,
+       hide_sidebar
-     :disable_hints,
+       read_only
-     :disable_download].each do |option|
+       hide_test_results
+       disable_hints
+       disable_download].each do |option|
       value = params["custom_embed_options_#{option}".to_sym] == 'true'
       # Optimize storage and save only those that are true, the session cookie is limited to 4KB
       @embed_options[option] = value if value.present?

app/controllers/exercises_controller.rb

@@ -466,7 +466,7 @@ class ExercisesController < ApplicationController
       # otherwise an internal user could be shown a false rfc here, since current_user.id is polymorphic, but only makes sense for external users when used with rfcs.)
       # redirect 10 percent pseudorandomly to the feedback page
       if current_user.respond_to? :external_id
-        if @submission.redirect_to_feedback?
+        if @submission.redirect_to_feedback? && !@embed_options[:disable_redirect_to_feedback]
           redirect_to_user_feedback
           return
         end
@@ -486,7 +486,7 @@ class ExercisesController < ApplicationController
 
         # else: show open rfc for same exercise if available
         rfc = @submission.unsolved_rfc
-        unless rfc.nil?
+        unless rfc.nil? || @embed_options[:disable_redirect_to_rfcs] || @embed_options[:disable_rfc]
           # set a message that informs the user that his score was perfect and help in RFC is greatly appreciated.
           flash[:notice] = I18n.t('exercises.submit.full_score_redirect_to_rfc')
           flash.keep(:notice)
@@ -503,7 +503,7 @@ class ExercisesController < ApplicationController
       end
     else
       # redirect to feedback page if score is less than 100 percent
-       if @exercise.needs_more_feedback?
+       if @exercise.needs_more_feedback? && !@embed_options[:disable_redirect_to_feedback]
          redirect_to_user_feedback
        else
          redirect_to_lti_return_path