Пример #1
0
        [HttpPost("Upload")]         // POST /api/Editor/Upload
        public async Task <IActionResult> Upload(List <IFormFile> files, [FromForm] string description, [FromForm] bool useContours)
        {
            DrawModel drawModel = null;

            foreach (var file in files)
            {
                // Read file fully and save to file system
                // var basePath = Path.Combine(Directory.GetCurrentDirectory() + "\\Files\\");
                // bool basePathExists = System.IO.Directory.Exists(basePath);
                // if (!basePathExists) Directory.CreateDirectory(basePath);
                // var fileName = Path.GetFileNameWithoutExtension(file.FileName);
                // var filePath = Path.Combine(basePath, file.FileName);
                // var extension = Path.GetExtension(file.FileName);
                // if (!System.IO.File.Exists(filePath))
                // {
                //     using (var stream = new FileStream(filePath, FileMode.Create))
                //     {
                //         await file.CopyToAsync(stream);
                //     }
                // }

                // Read file fully into memory and act
                var hasParsedSuccessfully = false;
                using (var memoryStream = new MemoryStream())
                {
                    await file.CopyToAsync(memoryStream);

                    _logger.LogInformation("Successfully uploaded file!");

                    // At this point, the Offset is at the end of the MemoryStream
                    // Do this to seek to the beginning
                    memoryStream.Seek(0, SeekOrigin.Begin);

                    // try to parse as dxf
                    if (!hasParsedSuccessfully)
                    {
                        try
                        {
                            _logger.LogInformation("Trying to parse file as DXF...");
                            var dxf = DxfDocument.Load(memoryStream);
                            if (dxf != null)
                            {
                                _logger.LogInformation("DXF read successfully!");

                                // convert dxf to a model that can be serialized
                                // since I am unable to get the default dxfnet model to be serialized
                                drawModel = DrawModel.FromDxfDocument(dxf, file.FileName, useContours);
                                _logger.LogInformation("Successfully parsed DXF to draw model!");
                                hasParsedSuccessfully = true;
                            }
                        }
                        catch (System.Exception e)
                        {
                            _logger.LogError(e, "Failed parsing as DXF!");
                            // ignore
                        }
                    }

                    // At this point, the Offset is at the end of the MemoryStream
                    // Do this to seek to the beginning
                    memoryStream.Seek(0, SeekOrigin.Begin);

                    // try to parse as SVG
                    if (!hasParsedSuccessfully)
                    {
                        try
                        {
                            _logger.LogInformation("Trying to parse file as SVG...");
                            var svg = SVGDocument.Load(memoryStream);
                            if (svg != null)
                            {
                                _logger.LogInformation("SVG read successfully!");
                                drawModel = DrawModel.FromSVGDocument(svg, file.FileName, useContours);
                                _logger.LogInformation("Successfully parsed SVG to draw model!");
                                hasParsedSuccessfully = true;
                            }
                        }
                        catch (System.Exception e)
                        {
                            _logger.LogError(e, "Failed parsing as SVG!");
                            // ignore
                        }
                    }

                    // At this point, the Offset is at the end of the MemoryStream
                    // Do this to seek to the beginning
                    memoryStream.Seek(0, SeekOrigin.Begin);

                    // try to parse as GCODE
                    if (!hasParsedSuccessfully)
                    {
                        try
                        {
                            _logger.LogInformation("Trying to parse file as GCODE...");
                            StreamReader reader = new StreamReader(memoryStream);
                            string       gCode  = reader.ReadToEnd();
                            if (!"".Equals(gCode))
                            {
                                _logger.LogInformation("GCODE read successfully!");
                                drawModel = DrawModel.FromGCode(gCode, file.FileName);
                                _logger.LogInformation("Successfully parsed GCODE to draw model!");
                                hasParsedSuccessfully = true;
                            }
                        }
                        catch (System.Exception e)
                        {
                            _logger.LogError(e, "Failed parsing as GCODE!");
                            // ignore
                        }
                    }

                    if (drawModel != null)
                    {
                        HttpContext.Session.SetObjectAsJson("DrawModel", drawModel);
                    }
                }
            }

            if (HttpContext.Session.Keys.Contains("DrawModel"))
            {
                _logger.LogInformation("File successfully uploaded!");
            }
            else
            {
                _logger.LogError("File upload failed!");
                return(BadRequest());
            }

            return(Ok());
        }