// Upload file
public async Task <IActionResult> Upload()
{
if (Files.Count > 0) // DN
{
var lang = new Lang();
var form = new HttpForm();
var name = form.GetValue("id");
UploadTable = form.GetValue("table");
var folder = UploadTempPath(name, UploadTable);
var token = form.GetValue(Config.TokenName);
var exts = form.GetValue("exts");
var extList = exts.Split(',');
if (!Empty(Config.UploadAllowedFileExtensions))
{
var allowedExtList = new List <string>(Config.UploadAllowedFileExtensions.Split(','));
exts = String.Join(",", extList.Where(ext => allowedExtList.Contains(ext, StringComparer.OrdinalIgnoreCase))); // Make sure exts is a subset of Config.UploadAllowedFileExtensions
if (Empty(exts))
{
exts = Config.UploadAllowedFileExtensions;
}
}
if (Empty(exts))
{
exts = @"\w+";
}
var filetypes = @"\.(" + exts.Replace(",", "|") + ")$";
var maxsize = form.GetInt("maxsize");
var maxfilecount = form.GetInt("maxfilecount");
var filename = form.GetUploadFileName(name);
// Skip if no file uploaded
if (Empty(filename))
{
return(Controller.BadRequest("Missing file name"));
}
if (Config.UploadConvertAccentedChars)
{
filename = HtmlEncode(filename);
filename = Regex.Replace(filename, @"&([a-zA-Z])(uml|acute|grave|circ|tilde|cedil);", "$1");
filename = HtmlDecode(filename);
}
var filetype = form.GetUploadFileContentType(name);
var filesize = form.GetUploadFileSize(name);
var value = await form.GetUploadFileData(name);
// Check file types
if (!Regex.IsMatch(filename, filetypes, RegexOptions.IgnoreCase))
{
var fileerror = lang.Phrase("UploadErrMsgAcceptFileTypes");
return(OutputJson("files", new List <object[]> {
new object[] { name, filename, filetype, filesize, token, fileerror }
}));
}
// Check file size
if (maxsize < filesize)
{
var fileerror = lang.Phrase("UploadErrMsgMaxFileSize");
return(OutputJson("files", new List <object[]> {
new object[] { name, filename, filetype, filesize, token, fileerror }
}));
}
// Check max file count
var filecount = FolderFileCount(folder);
if (maxfilecount > 0 && maxfilecount <= filecount)
{
var fileerror = lang.Phrase("UploadErrMsgMaxNumberOfFiles");
return(OutputJson("files", new List <object[]> {
new object[] { name, filename, filetype, filesize, token, fileerror }
}));
}
// Delete all files in directory if replace
var version = Config.UploadThumbnailFolder;
if (form.GetBool("replace"))
{
CleanPath(folder, false);
}
await SaveFile(folder, filename, value);
folder = PathCombine(folder, version, true);
var w = Config.UploadThumbnailWidth;
var h = Config.UploadThumbnailHeight;
ResizeBinary(ref value, ref w, ref h);
await SaveFile(folder, filename, value);
return(OutputJson("files", new List <object[]> {
new object[] { name, filename, filetype, filesize, token }
}));
}
return(new EmptyResult());
}
