public string UploadAttachment(FormCollection coll)
{
try
{
System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;
DataControl.CurrentInfo objCur = new DataControl.CurrentInfo();
string companyCode = objCur.GetCompanyCode();
string newFilename = string.Empty;
var container = Microsoft.WindowsAzure.Storage.CloudStorageAccount.Parse(
ConfigurationManager.AppSettings["NBBLOBACCKEY"]).CreateCloudBlobClient()
.GetContainerReference(companyCode.ToLower());
container.CreateIfNotExists();
//int blocksCount = int.Parse(coll["blocksCount"].ToString());
//string fileName = coll["fileName"].ToString();
//long fileSize = long.Parse(coll["fileSize"].ToString());
int blocksCount = int.Parse(coll["blocksCount"].ToString());
string fileName = coll["fileName"].ToString();
fileName = fileName.Substring(fileName.LastIndexOf("\\") + 1);
newFilename = fileName;
string fileExtenstion = fileName.Substring(fileName.LastIndexOf("."));
long fileSize = long.Parse(coll["fileSize"].ToString());
newFilename = newFilename.Substring(0, newFilename.LastIndexOf('.'));
newFilename = newFilename.ToString().Trim().Replace(" ", "_");
//Special Character are replaced.
newFilename = Regex.Replace(newFilename, @"[^0-9a-zA-Z_]+", "_");
fileName = newFilename + "_" + objCur.GetUserName() + "_" + DateTime.Now.ToString("ddMMyyyyHHmmssfff") + fileExtenstion;
var fileToUpload = new MVCModels.CloudFile()
{
BlockCount = blocksCount,
FileName = fileName,
Size = fileSize,
BlockBlob = container.GetBlockBlobReference(fileName),
StartTime = DateTime.Now,
IsUploadCompleted = false,
UploadStatusMessage = string.Empty
};
Session.Add("CurrentFile", fileToUpload);
return(fileName);
}
catch (Exception ex)
{
Dictionary <string, string> dicContext = new Dictionary <string, string>();
dicContext.Add("Method:", MethodBase.GetCurrentMethod().Name);
DataControl.Impl.ExceptionHandler.WriteLog(ex, dicContext);
throw ex;
}
}
public ActionResult UploadChunk(int id)
{
try
{
HttpPostedFileBase request = Request.Files["Slice"];
byte[] chunk = new byte[request.ContentLength];
request.InputStream.Read(chunk, 0, Convert.ToInt32(request.ContentLength));
JsonResult returnData = null;
string fileSession = "CurrentFile";
if (Session[fileSession] != null)
{
MVCModels.CloudFile model = (MVCModels.CloudFile)Session[fileSession];
returnData = UploadCurrentChunk(model, chunk, id);
if (returnData != null)
{
return(returnData);
}
if (id == model.BlockCount)
{
return(CommitAllChunks(model));
}
}
else
{
returnData = Json(new
{
error = true,
isLastBlock = false,
message = string.Format(CultureInfo.CurrentCulture,
"Failed to Upload file.", "Session Timed out")
});
return(returnData);
}
return(Json(new { error = false, isLastBlock = false, message = string.Empty }));
}
catch (Exception ex)
{
Dictionary <string, string> dicContext = new Dictionary <string, string>();
dicContext.Add("Method:", MethodBase.GetCurrentMethod().Name);
DataControl.Impl.ExceptionHandler.WriteLog(ex, dicContext);
throw ex;
}
}
private ActionResult CommitAllChunks(MVCModels.CloudFile model)
{
model.IsUploadCompleted = true;
bool errorInOperation = false;
try
{
var blockList = Enumerable.Range(1, (int)model.BlockCount).ToList <int>().ConvertAll(rangeElement =>
Convert.ToBase64String(Encoding.UTF8.GetBytes(
string.Format(CultureInfo.InvariantCulture, "{0:D4}", rangeElement))));
model.BlockBlob.PutBlockList(blockList);
var duration = DateTime.Now - model.StartTime;
float fileSizeInKb = model.Size / 1024;
string fileSizeMessage = fileSizeInKb > 1024 ?
string.Concat((fileSizeInKb / 1024).ToString(CultureInfo.CurrentCulture), " MB") :
string.Concat(fileSizeInKb.ToString(CultureInfo.CurrentCulture), " KB");
model.UploadStatusMessage = string.Format(CultureInfo.CurrentCulture,
"File uploaded successfully. {0} took {1} seconds to upload",
fileSizeMessage, duration.TotalSeconds);
}
catch (Exception e)
{
model.UploadStatusMessage = "Failed to Upload file. Exception - " + e.Message;
errorInOperation = true;
Dictionary <string, string> dicContext = new Dictionary <string, string>();
dicContext.Add("Method:", MethodBase.GetCurrentMethod().Name);
DataControl.Impl.ExceptionHandler.WriteLog(e, dicContext);
}
finally
{
}
return(Json(new
{
error = errorInOperation,
isLastBlock = model.IsUploadCompleted,
message = model.UploadStatusMessage
}));
}
private JsonResult UploadCurrentChunk(MVCModels.CloudFile model, byte[] chunk, int id)
{
try
{
using (var chunkStream = new MemoryStream(chunk))
{
var blockId = Convert.ToBase64String(Encoding.UTF8.GetBytes(
string.Format(CultureInfo.InvariantCulture, "{0:D4}", id)));
try
{
model.BlockBlob.PutBlock(
blockId,
chunkStream, null, null,
new BlobRequestOptions()
{
RetryPolicy = new LinearRetry(TimeSpan.FromSeconds(10), 3)
},
null);
return(null);
}
catch (StorageException e)
{
Session.Remove("CurrentFile");
model.IsUploadCompleted = true;
model.UploadStatusMessage = "Failed to Upload file. Exception - " + e.Message;
return(Json(new { error = true, isLastBlock = false, message = model.UploadStatusMessage }));
}
}
}
catch (Exception ex)
{
Dictionary <string, string> dicContext = new Dictionary <string, string>();
dicContext.Add("Method:", MethodBase.GetCurrentMethod().Name);
DataControl.Impl.ExceptionHandler.WriteLog(ex, dicContext);
throw ex;
}
}