private async Task <WopiResponse> ProcessGetFileRequestAsync(GetFileRequest wopiRequest,
CancellationToken cancellationToken)
{
if (!int.TryParse(wopiRequest.FileId, out var contentId))
{
return new WopiResponse {
StatusCode = HttpStatusCode.NotFound
}
}
;
if (!(await Node.LoadNodeAsync(contentId, cancellationToken).ConfigureAwait(false) is File file))
{
return new WopiResponse {
StatusCode = HttpStatusCode.NotFound
}
}
;
if (!IsPreconditionOk(wopiRequest, file))
{
return new WopiResponse {
StatusCode = HttpStatusCode.PreconditionFailed
}
}
;
return(new GetFileResponse
{
StatusCode = HttpStatusCode.OK,
File = file,
ContentType = file.Binary.ContentType
});
}
private WopiResponse ProcessGetFileRequest(GetFileRequest wopiReq)
{
if (!int.TryParse(wopiReq.FileId, out var contentId))
{
return new WopiResponse {
StatusCode = HttpStatusCode.NotFound
}
}
;
if (!(Node.LoadNode(contentId) is File file))
{
return new WopiResponse {
StatusCode = HttpStatusCode.NotFound
}
}
;
if (!IsPreconditionOk(wopiReq, file))
{
return new WopiResponse {
StatusCode = HttpStatusCode.PreconditionFailed
}
}
;
return(new GetFileResponse
{
StatusCode = HttpStatusCode.OK,
File = file,
ContentType = file.Binary.ContentType
});
}
private bool IsPreconditionOk(GetFileRequest wopiRequest, File file)
{
if (wopiRequest.MaxExpectedSize == null)
{
return(true);
}
var bigLength = file.Binary.Size;
if (bigLength > int.MaxValue)
{
return(false);
}
var length = Convert.ToInt32(bigLength);
return(wopiRequest.MaxExpectedSize.Value >= length);
}