private static bool TryParseUploadedFileMetadata(
IFormFile file,
string rawFileType,
string rawImageSize,
out IUploadedFileMetadata uploadedFileMetadata,
out string error)
{
uploadedFileMetadata = null;
error = null;
if (string.IsNullOrEmpty(rawFileType))
{
uploadedFileMetadata = new GenericUploadedFileMetadata(file.FileName, file.ContentType, file.Length);
return(true);
}
if (!Enum.TryParse <FileType>(rawFileType, true, out var fileType))
{
error = $"Cannot parse '{Http.HeaderNames.AmsFileType}' header value '{fileType}'";
return(false);
}
switch (fileType)
{
case FileType.SizeSpecificBitmapImage:
if (!ImageSize.TryParse(rawImageSize, out var imageSize))
{
error = $"Cannot parse '{Http.HeaderNames.AmsImageSize}' header value '{rawImageSize}'";
return(false);
}
uploadedFileMetadata = new UploadedImageMetadata(file.FileName, file.ContentType, file.Length, imageSize);
return(true);
default:
error = $"Unexpected '{Http.HeaderNames.AmsFileType}' header value '{fileType}'";
return(false);
}
}
private async Task <IReadOnlyDictionary <int, IReadOnlyCollection <BinaryValidationError> > > VerifyObjectBinaryElementsConsistency(
Language language,
IReadOnlyCollection <IObjectElementDescriptor> elements)
{
var errors = new Dictionary <int, IReadOnlyCollection <BinaryValidationError> >();
foreach (var binaryElement in elements.GetBinaryElements())
{
var elementErrors = new List <BinaryValidationError>();
var constraints = binaryElement.Constraints.For(language);
var fileKeys = binaryElement.Value.ExtractFileKeys();
foreach (var fileKey in fileKeys)
{
using (var getResponse = await _s3Client.GetObjectAsync(_filesBucketName, fileKey))
{
var memoryStream = new MemoryStream();
using (getResponse.ResponseStream)
{
await getResponse.ResponseStream.CopyToAsync(memoryStream);
memoryStream.Position = 0;
}
using (memoryStream)
{
var metadataWrapper = MetadataCollectionWrapper.For(getResponse.Metadata);
var fileName = metadataWrapper.Read <string>(MetadataElement.Filename);
IUploadedFileMetadata binaryMetadata;
if (binaryElement.Value is ICompositeBitmapImageElementValue compositeBitmapImageElementValue &&
compositeBitmapImageElementValue.Raw != fileKey)
{
var image = compositeBitmapImageElementValue.SizeSpecificImages.First(x => x.Raw == fileKey);
binaryMetadata = new UploadedImageMetadata(
fileName,
getResponse.Headers.ContentType,
getResponse.ContentLength,
image.Size);
}
private async Task <IReadOnlyDictionary <int, IReadOnlyCollection <BinaryValidationError> > > VerifyObjectBinaryElementsConsistency(
Language language,
IReadOnlyCollection <IObjectElementDescriptor> elements)
{
var errors = new Dictionary <int, IReadOnlyCollection <BinaryValidationError> >();
foreach (var binaryElement in elements.GetBinaryElements())
{
var elementErrors = new List <BinaryValidationError>();
var constraints = binaryElement.Constraints.For(language);
var fileKeys = binaryElement.Value.ExtractFileKeys();
foreach (var fileKey in fileKeys)
{
var(stream, metaData) = await _sessionStorageReader.GetBinaryData(fileKey);
using (stream)
{
IUploadedFileMetadata binaryMetadata;
if (binaryElement.Value is ICompositeBitmapImageElementValue compositeBitmapImageElementValue &&
compositeBitmapImageElementValue.Raw != fileKey)
{
var image = compositeBitmapImageElementValue.SizeSpecificImages.First(x => x.Raw == fileKey);
binaryMetadata = new UploadedImageMetadata(metaData.Filename, metaData.ContentType, metaData.FileSize, image.Size);
}
