public async Task <IActionResult> Add(int placeId, bool isMain)
{
if (
!IsCurrentUserAdmin() &&
!dbContext.Places.Any(
p => p.Id == placeId && p.OwnerId == currentUserProvider.UserId
)
)
{
return(Json(new ResultViewModel()
{
Status = (int)ResultStatus.Error,
Message = "Access denied"
}));
}
for (int i = 0; i < Request.Form.Files.Count; i++)
{
var file = Request.Form.Files[i];
if (
file.ContentType == "image/jpeg" ||
file.ContentType == "image/png"
)
{
using (var fileStream = file.OpenReadStream()) {
//Generate thumbnails
var thumbnails = thumbnailConfig.Sizes
.Select(
size => new
{
stream = ImageResizer.ResizeToCenter(fileStream, size),
size = size
}
);
//Resize image itself
var resizedImage = ImageResizer.Resize(
fileStream,
imagesConfiguration.PhotoMaxWidth,
imagesConfiguration.PhotoMaxWidth
);
// Generate image filename
var fileName = MD5.Create().CalculateStringHash(
DateTime.Now.Ticks.ToString()
)
.ToBase64String() + ".jpg";
// Replace main photo if it was already assigned
if (isMain)
{
var currentMainPhoto = dbContext.Photos
.Where(p => p.Type == PhotoType.Main && p.PlaceId == placeId)
.FirstOrDefault();
if (currentMainPhoto != null)
{
// Delete thumbnails and the photo itself
var filePath = Path.Combine(
imagesConfiguration.PhotosPath,
currentMainPhoto.Filename
);
System.IO.File.Delete(filePath);
deleteAllThumbnails(currentMainPhoto.Filename);
dbContext.Photos.Remove(currentMainPhoto);
}
}
// Save thumbnails
try
{
foreach (var thumbnail in thumbnails)
{
var path = thumbnailConfig.Path(thumbnail.size, fileName);
// Create directory if not existing
(new FileInfo(path)).Directory.Create();
// Save each thumbnail
var thumbnailFile = System.IO.File.Create(path);
using (var thumbnailWriter = new System.IO.StreamWriter(thumbnailFile)) {
await thumbnail.stream.CopyToAsync(thumbnailWriter.BaseStream);
}
}
//Save image
var photoFile = System.IO.File.Create(fileName);
using (var photoWriter = new System.IO.StreamWriter(photoFile)) {
await resizedImage.CopyToAsync(photoWriter.BaseStream);
}
}
catch (Exception)
{
return(Json(new ResultViewModel()
{
Status = (int)ResultStatus.Error, Message = "Niewłaściwy plik obrazu. Spróbuj jeszcze raz."
}));
}
dbContext.Photos.Add(new Photo()
{
Filename = fileName,
PlaceId = placeId,
Type = isMain ? PhotoType.Main : PhotoType.Additional
});
dbContext.SaveChanges();
}
}
}
return(Json(new ResultViewModel()
{
Status = (int)ResultStatus.Success
}));
}