Exemplo n.º 1
0
        public static void SubmitScore(Slide slide, string userId)
        {
            var ltiRequestsRepo = new LtiRequestsRepo();
            var consumersRepo   = new ConsumersRepo();
            var visitsRepo      = new VisitsRepo();

            var ltiRequest = ltiRequestsRepo.Find(userId, slide.Id);

            if (ltiRequest == null)
            {
                throw new Exception("LtiRequest for user '" + userId + "' not found");
            }

            var consumerSecret = consumersRepo.Find(ltiRequest.ConsumerKey).Secret;

            var score = visitsRepo.GetScore(slide.Id, userId);

            // TODO: fix outcome address in local edx (no localhost and no https)
            var uri = new UriBuilder(ltiRequest.LisOutcomeServiceUrl);

            if (uri.Host == "localhost")
            {
                uri.Host   = "192.168.33.10";
                uri.Port   = 80;
                uri.Scheme = "http";
            }

            var result = OutcomesClient.PostScore(uri.ToString(), ltiRequest.ConsumerKey, consumerSecret,
                                                  ltiRequest.LisResultSourcedId, score / (double)slide.MaxScore);

            if (!result.IsValid)
            {
                throw new Exception(uri + "\r\n\r\n" + result.Message);
            }
        }
Exemplo n.º 2
0
        public static void SubmitScore(string courseId, Slide slide, string userId, Visit visit = null)
        {
            var db = new ULearnDb();
            var ltiRequestsRepo = new LtiRequestsRepo(db);
            var consumersRepo   = new ConsumersRepo(db);
            var visitsRepo      = new VisitsRepo(db);

            var ltiRequest = ltiRequestsRepo.Find(courseId, userId, slide.Id);

            if (ltiRequest == null)
            {
                throw new Exception("LtiRequest for user '" + userId + "' not found");
            }

            var consumerSecret = consumersRepo.Find(ltiRequest.ConsumerKey).Secret;

            var score = visit?.Score ?? visitsRepo.GetScore(courseId, slide.Id, userId);

            log.Info($"Надо отправить результаты слайда {slide.Id} пользователя {userId} по LTI. Нашёл LtiRequest: {ltiRequest.JsonSerialize()}");
            UriBuilder uri;

            try
            {
                uri = new UriBuilder(ltiRequest.LisOutcomeServiceUrl);
            }
            catch (Exception e)
            {
                log.Error($"Неверный адрес отправки результатов по LTI: {ltiRequest.LisOutcomeServiceUrl}", e);
                throw;
            }

            if (uri.Host == "localhost")
            {
                uri.Host   = "192.168.33.10";
                uri.Port   = 80;
                uri.Scheme = "http";
            }

            var maxScore    = ControllerUtils.GetMaxScoreForUsersSlide(slide, true, false, false);
            var outputScore = score / (double)maxScore;

            log.Info($"Отправляю результаты на {ltiRequest.LisOutcomeServiceUrl}: {score} из {maxScore} ({outputScore})");

            /* Sometimes score is bigger then slide's MaxScore, i.e. in case of manual checking */
            if (score > maxScore)
            {
                outputScore = 1;
            }
            var result = OutcomesClient.PostScore(uri.ToString(), ltiRequest.ConsumerKey, consumerSecret,
                                                  ltiRequest.LisResultSourcedId, outputScore);

            if (!result.IsValid)
            {
                throw new Exception(uri + "\r\n\r\n" + result.Message);
            }
        }