public async Task <IActionResult> GetPetImage(int id)
{
var request = new PetImageRequest
{
Update = false,
UserId = _claimsCompat.ExtractFirstIdClaim(HttpContext.User),
PetId = id,
Content = null
};
var port = new BasicPresenter <BlobUriResponse>();
var success = await _imageUseCase.Handle(request, port);
return((success) ? new RedirectResult(port.Response.Uri.ToString()) : NotFound());
}
public async Task <IActionResult> UpdateProfileImage(int id)
{
// Ensure content type is supported
// TODO: look at applying some sort of 'upstream' filter on this instead of checking here.
// (it'll probably help with preflight requests and the like)
var supportedMimeTypes = new [] { "image/png", "image/jpeg" };
if (!supportedMimeTypes.Any(x => x.Equals(Request.ContentType)))
{
return(new UnsupportedMediaTypeResult());
}
var request = new PetImageRequest
{
Update = true,
UserId = _claimsCompat.ExtractFirstIdClaim(HttpContext.User),
PetId = id,
Content = Request.Body,
MimeType = Request.ContentType
};
var port = new BasicPresenter <BlobUriResponse>();
var success = await _imageUseCase.Handle(request, port);
if (success)
{
return new OkObjectResult(port.Response)
{
StatusCode = 201
}
}
;
return(BadRequest());
}
public async Task <bool> Handle(PetImageRequest message, IOutboundPort <BlobUriResponse> outputPort)
{
// verify that the user has access to the specified pet:
var user = await _userStore.GetUserById(message.UserId);
if (user == null)
{
return(false);
}
await _userStore.LoadPets(user);
var pet = user.Pets.FirstOrDefault(p => p.Id == message.PetId);
if (pet == null)
{
return(false);
}
// All pet images go to the image container/category.
const string category = Constants.StorageCategories.Images;
string blobName; // set based on execution path.
if (message.Update)
{
// Generate a new blob name (always) for pet images - ensures no conflict.
blobName = $"{message.UserId}_{message.PetId}_{Guid.NewGuid()}";
// upload the blob to storage.
await _blobStore.WriteBlob(category, blobName, message.MimeType, message.Content);
// associate a new blob entry to the pet
var entity = _entityFactory.GetBlobRecordBuilder()
.SetCategory(category)
.SetName(blobName)
.Build();
await _petStore.UpdateImage(pet, entity);
}
else
{
// load the current record from pet:
await _petStore.LoadImageRecord(pet);
blobName = pet.ProfileImage?.BlobName;
}
// check that there exists a blob associated to pet by this point.
if (blobName == null)
{
return(false);
}
var response = new BlobUriResponse
{
Uri = await _blobStore.GetBlobReadUri(category, blobName, 10, 30),
ExpiresIn = 10
};
outputPort.Handle(response);
return(true);
}
