transferred Code Ocean from original repository to GitHub

app/controllers/sessions_controller.rb

@@ -0,0 +1,49 @@
+class SessionsController < ApplicationController
+  include Lti
+
+  [:require_oauth_parameters, :require_valid_consumer_key, :require_valid_oauth_signature, :require_valid_exercise_token].each do |method_name|
+    before_action(method_name, only: :create_through_lti)
+  end
+
+  skip_after_action :verify_authorized
+  skip_before_action :verify_authenticity_token, only: :create_through_lti
+
+  def create
+    if user = login(params[:email], params[:password], params[:remember_me])
+      redirect_back_or_to(:root, notice: t('.success'))
+    else
+      flash.now[:danger] = t('.failure')
+      render(:new)
+    end
+  end
+
+  def create_through_lti
+    set_current_user
+    store_lti_session_data(consumer: @consumer, parameters: params)
+    store_nonce(params[:oauth_nonce])
+    flash[:notice] = I18n.t("sessions.create_through_lti.session_#{lti_outcome_service? ? 'with' : 'without'}_outcome", consumer: @consumer)
+    redirect_to(implement_exercise_path(@exercise.id))
+  end
+
+  def destroy
+    if current_user.external?
+      clear_lti_session_data
+    else
+      logout
+    end
+    redirect_to(:root, notice: t('.success'))
+  end
+
+  def destroy_through_lti
+    @consumer = Consumer.find_by(id: params[:consumer_id])
+    @submission = Submission.find(params[:submission_id])
+    clear_lti_session_data
+  end
+
+  def new
+    if current_user
+      flash[:warning] = t('shared.already_signed_in')
+      redirect_to(:root)
+    end
+  end
+end