File Upload Issue in Production #9651

3 Answer(s)

• 

  0

  ismcagdas created 4 years ago

  Support Team

  Hi @velu

  Could you share the upload code both on the server side and client side with us ?

  Thanks,

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• 

  0

  velu created 4 years ago

  
  
  public DpsecureFileUploadOutput DPUploadTempFolder(FileDto input)
          {
              try
              {
                  var DpUploadFile = Request.Form.Files.First();
  
                  //Check input
                  if (DpUploadFile == null)
                  {
                      throw new UserFriendlyException("File Not Found...");
                  }
  
                  var ext = Path.GetExtension(DpUploadFile.FileName);
                  if (ext == ".exe")
                  {
                      throw new Exception("Invalid File");
                  }
  
                  BinaryReader b = new BinaryReader(DpUploadFile.OpenReadStream());
                  byte[] fileBytes = b.ReadBytes((int)DpUploadFile.Length);
                  if (fileBytes.Length <= 0)
                  {
                      throw new UserFriendlyException("File Should not be Empty !!!.");
                  }
                  else
                  {
                      byte[] data = fileBytes;
                      int length = 2;
                      int index = 0;
                      byte[] result = new byte[length];
                      Array.Copy(data, index, result, 0, length);
                      if (((Encoding.UTF8.GetString(result) == "MZ") || (Encoding.UTF8.GetString(result) == "ZM")))
                      {
                          throw new UserFriendlyException("File Should not be in .exe format !!!.");
                      }
                  }
  
                    var fileInfo = new FileInfo(DpUploadFile.FileName);
                  var tempFileName = DpUploadFile.FileName.Trim();
                  var tempFilePath = Path.Combine(_appFolders.TempFileDownloadFolder, tempFileName);
                  System.IO.File.WriteAllBytes(tempFilePath, fileBytes);
  
                  return new DpsecureFileUploadOutput
                  {
                      FileToken = input.FileToken,
                      FileName = input.FileName,
                      FileType = input.FileType,
                  };
              }
              catch (UserFriendlyException ex)
              {
                     return new DpsecureFileUploadOutput(new ErrorInfo(ex.Message));
              }
          }
          ```
  
          
          ClientSide Code
          
      
          initFileUploader(): void {
          this.uploader = new FileUploader({ url: AppConsts.remoteServiceBaseUrl + '/Profile/DPUploadTempFolder' });
          this._uploaderOptions.autoUpload = false;
          this._uploaderOptions.authToken = 'Bearer ' + this._tokenService.getToken();
          this._uploaderOptions.removeAfterUpload = true;
          this.uploader.onAfterAddingFile = (file) => {
              file.withCredentials = false;
              this.fileReadingProgress = true;
          };
  
          this.uploader.onBuildItemForm = (fileItem: FileItem, form: any) => {
              form.append('FileType', fileItem.file.type);
              form.append('FileName', fileItem.file.name);
              form.append('FileToken', this.guid());
          };
  
          this.uploader.onProgressItem = (progress: any) => {
              //console.log(progress['progress']);
              this.progress = progress['progress'];
          };
  
          this.uploader.onSuccessItem = (item, response, status) => {
              const resp = &lt;IAjaxResponse&gt;JSON.parse(response);
              if (resp.success) {
                  this.fileReadingProgress = false;
                  this.btnSave = true;
                  this.isinTokenHolder = resp.result;
              } else {
                  this.message.error(resp.error.message);
              }
          };
  
          this.uploader.setOptions(this._uploaderOptions);
      }
      
  

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• 

  0

  ismcagdas created 4 years ago

  Support Team

  Hi,

  You can change temp folder path in AbpZeroTemplateWebCoreModule.cs or you can store temp files in cahce as we changed this behaviour here https://github.com/aspnetzero/aspnet-zero-core/commit/8672111621dffd72f96a2e4f8670d9584568b29a. In that way, you don't have to worry about accessing the file system.

  For the second problem, your code seems fine. Could that happen when the token is expired ?

  Thanks,

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