public async Task <object> Add(File file)
{
bool isValid = await _fileService.AddFile(file);
_notification.SetNotificationMessage(isValid, Title, file.UID);
return(_notification);
}
public IActionResult Create(IFormFile file, FileViewModel data, Guid id)
{
try
{
data.task = _tasksService.GetTask(id);
if (data.task.deadline > DateTime.Now)
{
if (ModelState.IsValid)
{
string uniqueFilename;
if (System.IO.Path.GetExtension(file.FileName) == ".pdf" && file.Length < 1048576)
{
//137 80 78 71 13 10 26 10
byte[] whiteList = new byte[] { 37, 80, 68, 70 };
if (file != null)
{
MemoryStream msIn = new MemoryStream();
using (var f = file.OpenReadStream())
{
f.Position = 0;
byte[] buffer = new byte[4];
f.Read(buffer, 0, 4);
for (int i = 0; i < whiteList.Length; i++)
{
if (whiteList[i] == buffer[i])
{
}
else
{
ModelState.AddModelError("file", "file is not valid and accapteable");
return(View());
}
}
//...other reading of bytes happening
f.Position = 0;
// f.CopyTo(msIn); //hybird encrypt
//uploading the file
//correctness
uniqueFilename = Guid.NewGuid() + Path.GetExtension(file.FileName);
data.file = uniqueFilename;
string absolutePath = @"ValuableFiles\" + uniqueFilename;
try
{
var member = _memberService.GetMember(User.Identity.Name);
file.CopyTo(msIn);
var encryptedData = Encryption.HybridEncrypt(msIn, member.publicKey);
System.IO.File.WriteAllBytes(absolutePath, encryptedData.ToArray());
data.signature = Encryption.SignData(encryptedData, member.privateKey);
f.Close();
}
catch (Exception ex)
{
//log
_logger.LogError(ex, "Error happend while saving file");
return(View("Error", new ErrorViewModel()
{
Message = "Error while saving the file. Try again later"
}));
}
}
}
}
else
{
ModelState.AddModelError("file", "File is not valid and acceptable or size is greater than 10Mb");
return(View());
}
//once the file has been inserted successfully in the db
data.email = HttpContext.User.Identity.Name; //this is the currently logged in user
_fileSerive.AddFile(data);
var remoteIpAddress = Request.HttpContext.Connection.RemoteIpAddress;
_logger.LogInformation("Current user uploading in files section: " + remoteIpAddress + " TimeStamp: " + System.DateTime.Now + " User: "******" File Id: " + data.file);
TempData["message"] = "File inserted successfully";
return(View());
}
else
{
ModelState.AddModelError("", "Check your input. Operation failed");
return(View(data));
}
}
else
{
TempData["error"] = "File deadline already passes";
return(View());
}
}
catch (Exception ex)
{
_logger.LogInformation("File upload not working" + ex);
return(RedirectToAction("Error", "home"));
}
}