Esempio n. 1
0
        public static async Task Run([QueueTrigger(Constants.VideosToDownloadQueueName, Connection = "AzureWebJobsStorage")] string myQueueItem, TraceWriter log)
        {
            Startup.Init();

            log.Info($"C# Queue trigger function processed: {myQueueItem}");

            VideosToDownload videosToDownload = JsonConvert.DeserializeObject <VideosToDownload>(myQueueItem);

            BlobAdapter blobAdapter = new BlobAdapter();

            blobAdapter.Init();

            VideoIndexTableAdapter videoIndexTableAdapter = new VideoIndexTableAdapter();

            videoIndexTableAdapter.Init();

            PostsTableAdapter postsTableAdapter = new PostsTableAdapter();

            postsTableAdapter.Init(log);

            ReversePostsTableAdapter reversePostsTableAdapter = new ReversePostsTableAdapter();

            reversePostsTableAdapter.Init(log);

            string sourceBlog = string.IsNullOrEmpty(videosToDownload.SourceBlog)
                ? videosToDownload.IndexInfo.BlogName
                : videosToDownload.SourceBlog;

            sourceBlog = SanityHelper.SanitizeSourceBlog(sourceBlog);

            using (HttpClient httpClient = new HttpClient())
            {
                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("video/*"));
                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("image/*"));

                List <Video> videos = new List <Video>();

                string   blogname = videosToDownload.IndexInfo.BlogName;
                string   id       = videosToDownload.IndexInfo.PostId;
                DateTime date     = videosToDownload.IndexInfo.PostDate;

                foreach (VideoUrls videoUrls in videosToDownload.VideoUrls)
                {
                    try
                    {
                        Video blobVideo = await blobAdapter.HandleVideo(videoUrls, videosToDownload.IndexInfo.BlogName, log);

                        videos.Add(blobVideo);

                        videoIndexTableAdapter.InsertVideoIndex(blogname, id, date, blobVideo, videosToDownload.VideoType, blobVideo.Bytes, videosToDownload.Duration);

                        log.Info("Video successfully downloaded: " + videoUrls.VideoUrl);
                    }
                    catch (HttpRequestException ex)
                    {
                        log.Warning("HTTP Error while downloading video " + videoUrls.VideoUrl + " - " + ex.Message);
                        postsTableAdapter.MarkWithVideoDownloadError(blogname, id, ex.Message);
                    }
                    catch (Exception ex)
                    {
                        log.Error("Error while downloading video ", ex);
                        throw;
                    }
                }

                if (videos.Count > 0)
                {
                    postsTableAdapter.MarkVideosAsDownloaded(videosToDownload.IndexInfo.BlogName, videosToDownload.IndexInfo.PostId, videos.ToArray());

                    ReversePostEntity reversePost = new ReversePostEntity(blogname, id, videosToDownload.PostType, date, videosToDownload.Body, videosToDownload.Title)
                    {
                        Videos = JsonConvert.SerializeObject(videos)
                    };
                    reversePostsTableAdapter.InsertPost(reversePost);
                }
            }
        }
Esempio n. 2
0
        public static async Task Run([QueueTrigger(Constants.PhotosToDownloadQueueName, Connection = "AzureWebJobsStorage")]
                                     string myQueueItem, TraceWriter log)
        {
            Startup.Init();

            string requestUrl = null;

            try
            {
                PhotosToDownload photosToDownload = JsonConvert.DeserializeObject <PhotosToDownload>(myQueueItem);

                BlobAdapter blobAdapter = new BlobAdapter();
                blobAdapter.Init();

                PhotoIndexTableAdapter photoIndexTableAdapter = new PhotoIndexTableAdapter();
                photoIndexTableAdapter.Init();

                PostsTableAdapter postsTableAdapter = new PostsTableAdapter();
                postsTableAdapter.Init(log);

                ReversePostsTableAdapter reversePostsTableAdapter = new ReversePostsTableAdapter();
                reversePostsTableAdapter.Init(log);

                List <Photo> sitePhotos = new List <Photo>();

                string   blogname = photosToDownload.IndexInfo.BlogName;
                string   id       = photosToDownload.IndexInfo.PostId;
                DateTime date     = photosToDownload.IndexInfo.PostDate;

                string sourceBlog = string.IsNullOrEmpty(photosToDownload.SourceBlog)
                    ? photosToDownload.IndexInfo.BlogName
                    : photosToDownload.SourceBlog;
                sourceBlog = SanityHelper.SanitizeSourceBlog(sourceBlog);

                using (HttpClient httpClient = new HttpClient())
                {
                    httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("image/*"));

                    foreach (Model.Tumblr.Photo photo in photosToDownload.Photos)
                    {
                        bool  isOriginal = true;
                        Photo sitePhoto  = null;

                        foreach (AltSize altSize in photo.Alt_sizes)
                        {
                            PhotoUrlHelper urlHelper = PhotoUrlHelper.ParseTumblr(altSize.Url);

                            if (isOriginal || urlHelper != null && DownloadSizes.Contains(urlHelper.Size))
                            {
                                if (sitePhoto == null)
                                {
                                    sitePhoto = new Photo
                                    {
                                        Name      = urlHelper.Container + "_" + urlHelper.Name,
                                        Extension = urlHelper.Extension,
                                        Sizes     = new PhotoSize[0]
                                    }
                                }
                                ;

                                PhotoUrlIndexEntity urlIndexEntity = photoIndexTableAdapter.GetPhotoUrlndex(sourceBlog, altSize.Url);
                                if (urlIndexEntity != null)                                         // photo already downloaded
                                {
                                    AddSizeToSitePhoto(sitePhoto, urlIndexEntity.BlobUrl, altSize); // need this to produce correct sitePhotos
                                    isOriginal = false;
                                }
                                else // photo not downloaded
                                {
                                    requestUrl = altSize.Url;
                                    byte[] photoBytes = await httpClient.GetByteArrayAsync(altSize.Url);

                                    if (photoBytes.Length > 0)
                                    {
                                        Uri blobUri = await blobAdapter.UploadPhotoBlob(urlHelper, photoBytes, isOriginal);

                                        AddSizeToSitePhoto(sitePhoto, blobUri.ToString(), altSize);

                                        photoIndexTableAdapter.InsertPhotoIndex(blogname, id, date, SanityHelper.SanitizeSourceBlog(photosToDownload.SourceBlog),
                                                                                blobUri.ToString(), urlHelper.Name, urlHelper.Size,
                                                                                altSize.Width, altSize.Height, altSize.Url);
                                        isOriginal = false;
                                        log.Info("Downloaded photo from: " + altSize.Url);
                                    }
                                }
                            }
                        }

                        if (sitePhoto?.Sizes.Length > 0)
                        {
                            sitePhotos.Add(sitePhoto);
                        }
                    }
                }

                string modifiedBody = BodyUrlModifier.ModifyUrls(sourceBlog, photosToDownload.Body, photoIndexTableAdapter, sitePhotos, out List <Model.Tumblr.Photo> extractedPhotos);

                if (extractedPhotos != null)
                {
                    log.Warning("Trying to modify body in ProcessPhotosToDownload but some images were not possible to replace");
                }

                postsTableAdapter.MarkPhotosAsDownloaded(photosToDownload.IndexInfo.BlogName, photosToDownload.IndexInfo.PostId, sitePhotos, modifiedBody);

                ReversePostEntity reversePost = new ReversePostEntity(photosToDownload.IndexInfo.BlogName, photosToDownload.IndexInfo.PostId,
                                                                      photosToDownload.PostType, photosToDownload.IndexInfo.PostDate, modifiedBody, photosToDownload.Title)
                {
                    Photos = JsonConvert.SerializeObject(sitePhotos)
                };
                reversePostsTableAdapter.InsertPost(reversePost);
            }
            catch (Exception ex)
            {
                if (ex is HttpRequestException httpRequestException && httpRequestException.Message.Contains("403") && httpRequestException.Message.Contains("Forbidden"))
                {
                    log.Warning("HTTP request was forbidden to URL: " + requestUrl);
                }