static OcrImageInfo ___downloadImage(OcrImageInfo ocr)
{
try
{
string file = Path.GetFileName(ocr.Url);
ocr.FileName = file.Substring(0, file.Length - 4) + "_" + DateTime.Now.ToString("yyyyMMdd_HHmmss") + ".jpg";
file = Path.Combine(Program.PATH_OCR_IMAGE, ocr.FileName);
ImageFormat format = ImageFormat.Jpeg;
WebClient client = new WebClient();
Stream stream = client.OpenRead(ocr.Url);
Bitmap bitmap = new Bitmap(stream);
if (bitmap != null)
{
bitmap.Save(file, format);
}
stream.Flush();
stream.Close();
client.Dispose();
ocr.DownloadSuccess = true;
}
catch (Exception ex)
{
ocr.DownloadSuccess = false;
ocr.StateOcr = STATE_OCR.OCR_FAIL_DOWNLOAD_FILE;
ocr.TextError = ex.Message;
}
return(ocr);
}
// This method is required by Katana:
public void Configuration(IAppBuilder app)
{
// Adding to the pipeline with our own middleware
app.Use(async(context, next) =>
{
// Add Header
context.Response.Headers["Product"] = "Web Api and Owin Middleware";
string file = context.Request.Query["file"];
if (!string.IsNullOrWhiteSpace(file))
{
OcrImageInfo ocr = new OcrImageInfo();
try
{
ocr.TextError = string.Empty;
ocr.TimeStart = long.Parse(DateTime.Now.ToString("yyyyMMddHHmmss"));
ocr.IsUrl = file.ToLower().StartsWith("http");
if (ocr.IsUrl)
{
ocr.Url = file;
}
else
{
ocr.FileName = file;
}
if (ocr.IsUrl)
{
ocr = ___downloadImage(ocr);
}
ocr = Program.goo_ocr_uploadFile(ocr);
}
catch (Exception e1) {
ocr.TextError = e1.Message;
}
string json = ocr.app_getJsonResult();
context.Response.StatusCode = (int)HttpStatusCode.OK;
context.Response.ContentType = "application/json";
context.Response.Write(json);
}
else
{
// Call next middleware
await next.Invoke();
}
});
// Custom Middleare
app.Use(typeof(SimpleMiddleware));
// Configure Web API for self-host.
var config = ConfigureWebApi();
// Web Api
app.UseWebApi(config);
////////// File Server
////////var options = new FileServerOptions
////////{
//////// EnableDirectoryBrowsing = true,
//////// EnableDefaultFiles = true,
//////// DefaultFilesOptions = { DefaultFileNames = { "home.html" } },
//////// FileSystem = new PhysicalFileSystem("StaticFiles"),
//////// StaticFileOptions = { ContentTypeProvider = new FileExtensionContentTypeProvider() }
////////};
////////app.UseFileServer(options);
if (!Directory.Exists("htdocs"))
{
Directory.CreateDirectory("htdocs");
}
var physicalFileSystem = new PhysicalFileSystem("./htdocs");
// file server options
var options = new FileServerOptions
{
EnableDefaultFiles = true,
FileSystem = physicalFileSystem, // register file system
EnableDirectoryBrowsing = false
};
options.StaticFileOptions.FileSystem = physicalFileSystem;
options.StaticFileOptions.ServeUnknownFileTypes = true;
options.DefaultFilesOptions.DefaultFileNames = new[] { "index.html" };
//app.Use<DefaultFileRewriterMiddleware>(physicalFileSystem); // middleware to direct non-existing file URLs to index.html
app.UseFileServer(options);
}
public static OcrImageInfo goo_ocr_uploadFile(OcrImageInfo ocr)
{
string file = Path.Combine(PATH_OCR_IMAGE, ocr.FileName);
if (File.Exists(file) == false)
{
ocr.StateOcr = STATE_OCR.OCR_FAIL_MISS_FILE;
return(ocr);
}
DataFile body = new DataFile()
{
Title = ocr.FileName,
Description = ocr.Url,
//body.MimeType = "application/vnd.ms-excel";
MimeType = "image/jpeg"
};
byte[] byteArray = File.ReadAllBytes(file);
using (MemoryStream stream = new MemoryStream(byteArray))
{
try
{
//FilesResource.InsertMediaUpload request = service.Files.Insert(body, stream, "application/vnd.google-apps.spreadsheet");
FilesResource.InsertMediaUpload request = gooService.Files.Insert(body, stream, "application/vnd.google-apps.photo");
request.Ocr = true;
request.OcrLanguage = "vi";
request.Convert = true;
request.Upload();
DataFile imgFile = request.ResponseBody;
string fileId = imgFile.Id;
// Copy image and paste as document
var textMetadata = new DataFile();
//textMetadata.Name = inputFile.Name;
//textMetadata.Parents = new List<string> { folderId };
textMetadata.MimeType = "application/vnd.google-apps.document";
FilesResource.CopyRequest requestCopy = gooService.Files.Copy(textMetadata, fileId);
requestCopy.Fields = "id";
requestCopy.OcrLanguage = "vi";
var textFile = requestCopy.Execute();
// Now we export document as plain text
FilesResource.ExportRequest requestExport = gooService.Files.Export(textFile.Id, "text/plain");
string output = requestExport.Execute();
ocr.TextResult = output;
ocr.StateOcr = STATE_OCR.OCR_SUCCESS;
//writeLogMessage("OK: " + ocr.FileName);
if (ocr.WriteToFile)
{
if (!string.IsNullOrEmpty(ocr.TextResult))
{
File.WriteAllText(PATH_OCR_IMAGE + @"log\" + ocr.FileName + ".txt", ocr.TextResult);
}
}
}
catch (Exception e)
{
ocr.TextError = e.Message;
ocr.StateOcr = STATE_OCR.OCR_FAIL_THROW_ERROR;
}
}
return(ocr);
}
