Esempio n. 1
0
        public async Task <FileResult> GetImage(int userID, int siteID, int programID, int tracerID, string fileName, bool actualImage = false)
        {
            try
            {
                TokenServices tokenService = new TokenServices();
                if (tokenService.CheckUserToken(userID))
                {
                    //Azure settings
                    var             accountName    = ConfigurationManager.AppSettings["storage:account:name"];
                    var             accountKey     = ConfigurationManager.AppSettings["storage:account:key"];
                    var             storageAccount = new CloudStorageAccount(new StorageCredentials(accountName, accountKey), true);
                    CloudBlobClient blobClient     = storageAccount.CreateCloudBlobClient();

                    var folderName = actualImage ? "Actual/" : "Thumb/";

                    var uri = ConfigurationManager.AppSettings["azure:filepath"] + folderName + siteID + "/" + programID + "/" + tracerID + "/" + fileName;

                    var Blob = await blobClient.GetBlobReferenceFromServerAsync(new Uri(uri));

                    var isExist = await Blob.ExistsAsync();

                    if (!isExist)
                    {
                        // "file not found"
                        return(null);
                    }
                    else
                    {
                        Stream blobStream = await Blob.OpenReadAsync();

                        byte[] streamdata = new BinaryReader(blobStream).ReadBytes((int)Blob.Properties.Length);

                        var contentType = Blob.Properties.ContentType.ToString();
                        contentType = contentType.Contains("octet") ? MimeMapping.GetMimeMapping(fileName) : contentType;

                        return(File(streamdata, contentType, fileName));
                    }
                }
                else
                {
                    return(null);
                }
            }
            catch (Exception ex)
            {
                var Content = new StringContent(ex.Message);
                return(null);
            }
        }