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added proxy exercise dispatching to LTI module. Submissions now set user before the exercise token gets validated. this we need to set the exercise behind the proxy exercise

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This commit is contained in:
Thomas Hille
2017-02-21 18:31:42 +01:00
parent 16a3bad453
commit d5b2ea4269
4 changed files with 23 additions and 10 deletions
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17
app/controllers/concerns/lti.rb
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@ -74,7 +74,12 @@ module Lti
private :require_valid_consumer_key
def require_valid_exercise_token
@exercise = Exercise.find_by(token: params[:custom_token])
proxy_exercise = ProxyExercise.find_by(token: params[:custom_token])
unless proxy_exercise.nil?
@exercise = proxy_exercise.getMatchingExercise(@current_user)
else
@exercise = Exercise.find_by(token: params[:custom_token])
end
refuse_lti_launch(message: t('sessions.oauth.invalid_exercise_token')) unless @exercise
end
private :require_valid_exercise_token
@ -129,19 +134,15 @@ module Lti
private :set_current_user
def store_lti_session_data(options = {})
exercise = Exercise.where(token: options[:parameters][:custom_token]).first
exercise_id = exercise.id unless exercise.nil?
current_user = ExternalUser.find_or_create_by(consumer_id: options[:consumer].id, external_id: options[:parameters][:user_id].to_s)
lti_parameters = LtiParameter.find_or_create_by(consumers_id: options[:consumer].id,
external_users_id: current_user.id,
exercises_id: exercise_id)
external_users_id: @current_user.id,
exercises_id: @exercise.id)
lti_parameters.lti_parameters = options[:parameters].slice(*SESSION_PARAMETERS).to_json
lti_parameters.save!
session[:consumer_id] = options[:consumer].id
session[:external_user_id] = current_user.id
session[:external_user_id] = @current_user.id
end
private :store_lti_session_data