/// <summary> /// Get files in the passed directory /// </summary> /// <param name="directoryPath">Path to the files directory</param> /// <param name="type">Type of the files</param> /// <returns>A task that represents the completion of the operation</returns> protected virtual async Task GetFilesAsync(string directoryPath, string type) { directoryPath = GetVirtualPath(directoryPath); List <string> files = GetFiles(GetFullPath(directoryPath), type); await HttpContext.Response.WriteAsync("["); for (int i = 0; i < files.Count; i++) { int width = 0; int height = 0; string physicalPath = files[i]; if (GetFileType(_fileProvider.GetFileExtension(files[i])) == "image") { using (FileStream stream = new FileStream(physicalPath, FileMode.Open)) { using (Image image = Image.FromStream(stream)) { width = image.Width; height = image.Height; } } } await HttpContext.Response.WriteAsync($"{{\"p\":\"{directoryPath.TrimEnd('/')}/{_fileProvider.GetFileName(physicalPath)}\",\"t\":\"{Math.Ceiling(GetTimestamp(_fileProvider.GetLastWriteTime(physicalPath)))}\",\"s\":\"{_fileProvider.FileLength(physicalPath)}\",\"w\":\"{width}\",\"h\":\"{height}\"}}"); if (i < files.Count - 1) { await HttpContext.Response.WriteAsync(","); } } await HttpContext.Response.WriteAsync("]"); }
/// <summary> /// Get a picture local path /// </summary> /// <param name="picture">Picture instance</param> /// <param name="targetSize">The target picture size (longest side)</param> /// <param name="showDefaultPicture">A value indicating whether the default picture is shown</param> /// <returns></returns> public virtual string GetThumbLocalPath(Picture picture, int targetSize = 0, bool showDefaultPicture = true) { string url = GetPictureUrl(picture, targetSize, showDefaultPicture); if (string.IsNullOrEmpty(url)) { return(string.Empty); } return(GetThumbLocalPath(_fileProvider.GetFileName(url))); }
public virtual IActionResult Upload() { ViewData["resultCode"] = "failed"; ViewData["result"] = "No access to this functionality"; return(View()); if (Request.Form.Files.Count == 0) { throw new Exception("No file uploaded"); } var uploadFile = Request.Form.Files.FirstOrDefault(); if (uploadFile == null) { ViewData["resultCode"] = "failed"; ViewData["result"] = "No file name provided"; return(View()); } var fileName = _fileProvider.GetFileName(uploadFile.FileName); if (string.IsNullOrEmpty(fileName)) { ViewData["resultCode"] = "failed"; ViewData["result"] = "No file name provided"; return(View()); } var directory = "~/wwwroot/images/uploaded/"; var filePath = _fileProvider.Combine(_fileProvider.MapPath(directory), fileName); var fileExtension = _fileProvider.GetFileExtension(filePath); if (!GetAllowedFileTypes().Contains(fileExtension)) { ViewData["resultCode"] = "failed"; ViewData["result"] = $"Files with {fileExtension} extension cannot be uploaded"; return(View()); } using (var fileStream = new FileStream(filePath, FileMode.Create)) { uploadFile.CopyTo(fileStream); } ViewData["resultCode"] = "success"; ViewData["result"] = "success"; ViewData["filename"] = Url.Content($"{directory}{fileName}"); return(View()); }
//do not validate request token (XSRF) public virtual IActionResult AsyncUpload() { //if (!_permissionService.Authorize(StandardPermissionProvider.UploadPictures)) // return Json(new { success = false, error = "You do not have required permissions" }, "text/plain"); IFormFile httpPostedFile = Request.Form.Files.FirstOrDefault(); if (httpPostedFile == null) { return(Json(new { success = false, message = "No file uploaded", downloadGuid = Guid.Empty })); } byte[] fileBinary = _downloadService.GetDownloadBits(httpPostedFile); const string qqFileNameParameter = "qqfilename"; string fileName = httpPostedFile.FileName; if (string.IsNullOrEmpty(fileName) && Request.Form.ContainsKey(qqFileNameParameter)) { fileName = Request.Form[qqFileNameParameter].ToString(); } //remove path (passed in IE) fileName = _fileProvider.GetFileName(fileName); string contentType = httpPostedFile.ContentType; string fileExtension = _fileProvider.GetFileExtension(fileName); if (!string.IsNullOrEmpty(fileExtension)) { fileExtension = fileExtension.ToLowerInvariant(); } //contentType is not always available //that's why we manually update it here //http://www.sfsu.edu/training/mimetype.htm if (string.IsNullOrEmpty(contentType)) { switch (fileExtension) { case ".bmp": contentType = MimeTypes.ImageBmp; break; case ".gif": contentType = MimeTypes.ImageGif; break; case ".jpeg": case ".jpg": case ".jpe": case ".jfif": case ".pjpeg": case ".pjp": contentType = MimeTypes.ImageJpeg; break; case ".png": contentType = MimeTypes.ImagePng; break; case ".tiff": case ".tif": contentType = MimeTypes.ImageTiff; break; default: break; } } var picture = _pictureService.InsertPicture(fileBinary, contentType, null); //when returning JSON the mime-type must be set to text/plain //otherwise some browsers will pop-up a "Save As" dialog. return(Json(new { success = true, pictureId = picture.Id, imageUrl = _pictureService.GetPictureUrl(picture.Id, 100) })); }