internal bool ValidateBusinessRules(FlowValidationRules rules, out List <string> errorMessages)
{
errorMessages = new List <string>();
if (rules.MaxFileSize.HasValue && TotalSize > rules.MaxFileSize.Value)
{
errorMessages.Add(rules.MaxFileSizeMessage ?? "size");
}
if (rules.AcceptedExtensions.Count > 0 && rules.AcceptedExtensions.SingleOrDefault(x => x.ToUpperInvariant() == FileName.Split('.').Last().ToUpperInvariant()) == null)
{
errorMessages.Add(rules.AcceptedExtensionsMessage ?? "type");
}
return(errorMessages.Count == 0);
}
private FlowJsPostChunkResponse PostChunkBase(HttpRequest request, string folder, FlowValidationRules validationRules)
{
var chunk = new FlowChunk();
if (!chunk.ParseForm(request.Form))
{
var errResponse = new FlowJsPostChunkResponse();
errResponse.Status = PostChunkStatus.Error;
errResponse.ErrorMessages.Add("damaged");
}
List <string> errorMessages = null;
var file = request.Files[0];
var response = new FlowJsPostChunkResponse {
FileName = chunk.FileName, Size = chunk.TotalSize
};
var chunkIsValid = true;
if (validationRules != null)
{
chunkIsValid = chunk.ValidateBusinessRules(validationRules, out errorMessages);
}
if (!chunkIsValid)
{
response.Status = PostChunkStatus.Error;
response.ErrorMessages = errorMessages;
return(response);
}
string root = HttpContext.Current.Server.MapPath("~/Images");
var chunkFullPathName = GetChunkFilename(chunk.Number, chunk.Identifier, root);
if (!Directory.Exists(root))
{
Directory.CreateDirectory(root);
}
file.SaveAs(chunkFullPathName);
for (int i = 1, l = chunk.TotalChunks; i <= l; i++)
{
var chunkNameToTest = GetChunkFilename(i, chunk.Identifier, root);
if (!File.Exists(chunkNameToTest))
{
response.Status = PostChunkStatus.PartlyDone;
return(response);
}
}
// if we are here, all chunks are uploaded
var fileAry = new List <string>();
for (int i = 1, l = chunk.TotalChunks; i <= l; i++)
{
fileAry.Add("flow-" + chunk.Identifier + "." + i);
}
MultipleFilesToSingleFile(root, fileAry, chunk.FileName);
for (int i = 0, l = fileAry.Count; i < l; i++)
{
try
{
File.Delete(Path.Combine(root, fileAry[i]));
}
catch (Exception)
{
}
}
response.Status = PostChunkStatus.Done;
return(response);
}
public FlowJsPostChunkResponse PostChunk(HttpRequest request, string folder, FlowValidationRules validationRules)
{
return(PostChunkBase(request, folder, validationRules));
}