public async Task<ActionResult> UploadFile()
{
string fileName = "";
var userId = AbpSession.GetUserId();
try
{
foreach (HttpPostedFileBase file in Request.Files.Cast<string>().Select(fileItem => Request.Files[fileItem]).Where(file => file != null))
{
fileName = file.FileName;
var fileSize = file.ContentLength;
// check to make sure we actually have a file
if (file.ContentLength <= 0) throw new UserFriendlyException("I'm sorry, there was an error saving the file.");
// read in the file into a byte array
byte[] binaryFile;
using (var binaryReady = new BinaryReader(file.InputStream))
{
binaryFile = binaryReady.ReadBytes(file.ContentLength);
}
var fullPath = FileHelpers.GetPath(fileName, Server.MapPath(@"\App_Data\"), userId);
var saveFile = new File
{
FileName = fileName, // don't save the file name with the extension
FileSize = FileHelpers.BytesToMegaBytes(fileSize),
FileType = file.ContentType,
FilePath = fullPath,
UploadDateTime = DateTime.Now,
IsImage = FileHelpers.IsImage(file.ContentType),
UserId = userId
};
// go back to the main UI thread and do whatever until we are ready
await FileHelpers.EncryptFileToDiskAsync(binaryFile, fullPath, "zxcvbgfdsaqwert54321");
await _fileService.SaveFileAsync(saveFile);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return Json(new {message = fileName});
}
public async Task<ActionResult> SaveEditedImage(ImageEditorViewModel imageEditorViewModel)
{
var userId = AbpSession.GetUserId();
// continue on with whatever we need to do until we get this file and are ready to do something with it
var fileTask = _fileService.GetFileByIdAsync(imageEditorViewModel.FileId);
// make a regular expression to get the type and image data quickly
var imageRegex = Regex.Match(imageEditorViewModel.DataUrl, @"data:image/(?<type>.+?),(?<data>.+)");
var imageType = imageRegex.Groups["type"].Value.Split(';')[0];
var base64Data = imageRegex.Groups["data"].Value;
var binaryData = Convert.FromBase64String(base64Data);
var size = binaryData.Length;
string path;
// we have done all the work we can do without requiring the file, no await till that task is done
var file = await fileTask;
// saving as a new file
if (imageEditorViewModel.FileId == 0)
{
imageEditorViewModel.FileName += "." + imageType;
path = FileHelpers.GetPath(imageEditorViewModel.FileName, Server.MapPath(@"\App_Data\"), userId);
}
else
{
path = file.FilePath;
}
await FileHelpers.EncryptFileToDiskAsync(binaryData, path, "zxcvbgfdsaqwert54321");
// go ahead and return if we are not making a new file
if (file.Id != 0) return Json(new {fileName = file.FileName});
var newFile = new File
{
FileName = imageEditorViewModel.FileName,
FilePath = path,
FileSize = FileHelpers.BytesToMegaBytes(size),
UploadDateTime = DateTime.Now,
FileType = "image/" + imageType,
IsImage = true,
UserId = userId
};
await _fileService.SaveFileAsync(newFile);
return Json(new {fileName = imageEditorViewModel.FileName});
}
