public JsonResult UploadChunked(ChunkUploadResult result)
{
//this is important because the uploader will make multiple requests for this action.
//when the upload (for an individual file) is complete, check these two variables for a finished upload.
if (result.Success && result.FileUploadComplete)
{
try
{
string path = Server.MapPath("~/App_Data/" + result.OriginalFilename);
if (System.IO.File.Exists(path))
System.IO.File.Delete(path);
System.IO.File.Move(result.TempFilePath, path); //using the posted Filename in the last chunk request to determine final name.
}
catch
{
//cleanup, remove temp file.
try
{
if (System.IO.File.Exists(result.TempFilePath))
System.IO.File.Delete(result.TempFilePath);
}
catch { } //swallow it. at this point, we're only attempting to cleanup an orphaned file.
}
}
return Json(new { Success = result.Success, Message = result.Message });
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
var uploadResult = new ChunkUploadResult();
string path = null;
try
{
if (filterContext.HttpContext.Request.Files.Count > 0)
{
var sseq = filterContext.HttpContext.Request["Sequence"];
var seq = ChunkSequence.Body;
if (!string.IsNullOrEmpty(sseq))
System.Enum.TryParse<ChunkSequence>(sseq, out seq);
var post = new ChunkInfo() { Sequence = seq, Hash = filterContext.HttpContext.Request["Hash"], Filename = filterContext.HttpContext.Request["Filename"] };
var postedFile = filterContext.HttpContext.Request.Files[0];
path = filterContext.HttpContext.Server.MapPath("~/App_Data/" + postedFile.FileName); //using filename as the identifier (GUID)
AppendPostedFileContent(postedFile, path);
uploadResult.ContentType = postedFile.ContentType;
uploadResult.TempFilePath = path;
if (post.Sequence == ChunkSequence.End)
{
//validate full file hash.
string hash = null;
using (var fs = System.IO.File.OpenRead(path))
hash = Utility.GetHashSHA1(fs);
if (hash == post.Hash)
{
uploadResult.Success = true;
uploadResult.FileUploadComplete = true;
uploadResult.OriginalFilename = post.Filename;
}
else
{
//fail...resend.
System.IO.File.Delete(path); //cleanup
uploadResult.Success = false;
uploadResult.Message = "Hash fail";
}
}
else
uploadResult.Success = true;
}
}
catch (Exception ex)
{
try
{
if (System.IO.File.Exists(path))
System.IO.File.Delete(path);
}
catch { } //swallow it. if it's write permissions, we already know about it. this is just an attempt to cleanup.
uploadResult.Success = false;
uploadResult.Message = ex.Message;
}
filterContext.ActionParameters["result"] = uploadResult;
base.OnActionExecuting(filterContext);
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
var uploadResult = new ChunkUploadResult();
string path = null;
try
{
if (filterContext.HttpContext.Request.Files.Count > 0)
{
var sseq = filterContext.HttpContext.Request["Sequence"];
var seq = ChunkSequence.Body;
if (!string.IsNullOrEmpty(sseq))
{
System.Enum.TryParse <ChunkSequence>(sseq, out seq);
}
var post = new ChunkInfo()
{
Sequence = seq, Hash = filterContext.HttpContext.Request["Hash"], Filename = filterContext.HttpContext.Request["Filename"]
};
var postedFile = filterContext.HttpContext.Request.Files[0];
path = filterContext.HttpContext.Server.MapPath("~/App_Data/" + postedFile.FileName); //using filename as the identifier (GUID)
AppendPostedFileContent(postedFile, path);
uploadResult.ContentType = postedFile.ContentType;
uploadResult.TempFilePath = path;
if (post.Sequence == ChunkSequence.End)
{
//validate full file hash.
string hash = null;
using (var fs = System.IO.File.OpenRead(path))
hash = Utility.GetHashSHA1(fs);
if (hash == post.Hash)
{
uploadResult.Success = true;
uploadResult.FileUploadComplete = true;
uploadResult.OriginalFilename = post.Filename;
}
else
{
//fail...resend.
System.IO.File.Delete(path); //cleanup
uploadResult.Success = false;
uploadResult.Message = "Hash fail";
}
}
else
{
uploadResult.Success = true;
}
}
}
catch (Exception ex)
{
try
{
if (System.IO.File.Exists(path))
{
System.IO.File.Delete(path);
}
}
catch { } //swallow it. if it's write permissions, we already know about it. this is just an attempt to cleanup.
uploadResult.Success = false;
uploadResult.Message = ex.Message;
}
filterContext.ActionParameters["result"] = uploadResult;
base.OnActionExecuting(filterContext);
}
