public static GetAnnotationsResponse GetAnnotations(GetAnnotationsRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (request.PageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// If page number is 0, get all annotations
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
var annCodec = new AnnCodecs();
string annotations = null;
if (request.PageNumber == 0)
{
var containers = document.Annotations.GetAnnotations(request.CreateEmpty);
annotations = annCodec.SaveAllToString(containers, AnnFormat.Annotations);
}
else
{
DocumentHelper.CheckPageNumber(document, request.PageNumber);
var documentPage = document.Pages[request.PageNumber - 1];
var container = documentPage.GetAnnotations(request.CreateEmpty);
if (container != null)
{
annotations = annCodec.SaveToString(container, AnnFormat.Annotations, request.PageNumber);
}
}
return(new GetAnnotationsResponse {
Annotations = annotations
});
}
}
public static Response SetAnnotations(SetAnnotationsRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (request.PageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// If pageNumber 0, set for all pages
var annCodec = new AnnCodecs();
AnnContainer[] containers = null;
if (!string.IsNullOrEmpty(request.Annotations))
{
containers = annCodec.LoadAllFromString(request.Annotations);
}
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
// If the document is read-only then below will fail. So, temporarily reset the value
var wasReadOnly = document.IsReadOnly;
document.IsReadOnly = false;
if (request.PageNumber == 0)
{
// Set all
document.Annotations.SetAnnotations(containers);
}
else
{
DocumentHelper.CheckPageNumber(document, request.PageNumber);
var documentPage = document.Pages[request.PageNumber - 1];
AnnContainer container = null;
if (containers != null)
{
if (containers.Length == 1)
{
container = containers[0];
}
else
{
for (var i = 0; i < containers.Length && container == null; i++)
{
if (containers[i].PageNumber == request.PageNumber)
{
container = containers[i];
}
}
}
}
documentPage.SetAnnotations(container);
}
// reset the read-only value before saving into the cache
document.IsReadOnly = wasReadOnly;
document.SaveToCache();
}
return(new Response());
}
public HttpResponseMessage GetImage([FromUri] GetImageRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
if (request.Resolution < 0)
{
throw new ArgumentException("'resolution' must be a value greater than or equal to 0");
}
// Sanity check on other parameters
if (request.QualityFactor < 0 || request.QualityFactor > 100)
{
throw new ArgumentException("'qualityFactor' must be a value between 0 and 100");
}
if (request.Width < 0 || request.Height < 0)
{
throw new ArgumentException("'width' and 'height' must be value greater than or equal to 0");
}
// Get the image format
var saveFormat = SaveImageFormat.GetFromMimeType(request.MimeType);
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
var documentPage = document.Pages[pageNumber - 1];
using (var image = documentPage.GetImage(request.Resolution))
{
// Resize it (will only resize if both width and height are not 0), will also take care of FAX images (with different resolution)
ImageResizer.ResizeImage(image, request.Width, request.Height);
var stream = ImageSaver.SaveImage(image, document.RasterCodecs, saveFormat, request.MimeType, request.BitsPerPixel, request.QualityFactor);
// If we just return the stream, Web Api will try to serialize it.
// If the return type is "HttpResponseMessage" it will not serialize
// and you can set the content as you wish.
var response = new HttpResponseMessage();
response.Content = new StreamContent(stream);
ServiceHelper.UpdateCacheSettings(response);
return(response);
}
}
}
public ReadBarcodesResponse ReadBarcodes(ReadBarcodesRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
try
{
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
// Set the options
var barcodeEngine = new BarcodeEngine();
document.Barcodes.BarcodeEngine = barcodeEngine;
var barcodeReader = barcodeEngine.Reader;
// Get the symbologies to read
var symbologies = new List <BarcodeSymbology>();
if (request.Symbologies != null && request.Symbologies.Length > 0)
{
symbologies.AddRange(request.Symbologies);
}
else
{
symbologies.AddRange(barcodeReader.GetAvailableSymbologies());
}
// Load the options from config
bool usedCustomOptions = ServiceHelper.SetBarcodeReadOptions(barcodeReader);
if (!usedCustomOptions)
{
ServiceHelper.InitBarcodeReader(barcodeReader, false);
}
var documentPage = document.Pages[pageNumber - 1];
var barcodes = documentPage.ReadBarcodes(request.Bounds, request.MaximumBarcodes, symbologies.ToArray());
if (barcodes.Length == 0 && !usedCustomOptions)
{
// Did not find any barcodes, try again with double pass enabled
ServiceHelper.InitBarcodeReader(barcodeReader, true);
// Do not read MicroPDF417 in this pass since it is too slow
if (symbologies != null && symbologies.Contains(BarcodeSymbology.MicroPDF417))
{
symbologies.Remove(BarcodeSymbology.MicroPDF417);
}
// Try again
barcodes = documentPage.ReadBarcodes(request.Bounds, request.MaximumBarcodes, symbologies.ToArray());
}
// If we found any barcodes, parse the ECI data if available
foreach (var barcode in barcodes)
{
if (barcode.Symbology == BarcodeSymbology.QR || barcode.Symbology == BarcodeSymbology.MicroQR)
{
string eciData = BarcodeData.ParseECIData(barcode.GetData());
if (!string.IsNullOrEmpty(eciData))
{
barcode.Value = eciData;
}
}
}
return(new ReadBarcodesResponse {
Barcodes = barcodes
});
}
}
catch (Exception ex)
{
Trace.WriteLine(string.Format("ReadBarcodes - Error:{1}{0}documentId:{2} pageNumber:{3}", Environment.NewLine, ex.Message, request.DocumentId, pageNumber), "Error");
throw;
}
}
public GetTextResponse GetText(GetTextRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
IOcrEngine ocrEngine = null;
try
{
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
document.Text.TextExtractionMode = request.TextExtractionMode;
var documentPage = document.Pages[pageNumber - 1];
if (document.Text.TextExtractionMode != DocumentTextExtractionMode.OcrOnly && !document.Images.IsSvgSupported)
{
ocrEngine = ServiceHelper.GetOCREngine();
if (ocrEngine != null)
{
document.Text.OcrEngine = ocrEngine;
}
}
var pageText = documentPage.GetText(request.Clip);
return(new GetTextResponse {
PageText = pageText
});
}
}
catch (Exception ex)
{
Trace.WriteLine(string.Format("GetText - Error:{1}{0}documentId:{2} pageNumber:{3}", Environment.NewLine, ex.Message, request.DocumentId, pageNumber), "Error");
throw;
}
}
public HttpResponseMessage GetSvg([FromUri] GetSvgRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
int pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equals to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
document.Images.UnembedSvgImages = request.UnembedImages;
var documentPage = document.Pages[pageNumber - 1];
var loadOptions = new CodecsLoadSvgOptions();
loadOptions.ForceTextPath = (request.Options & DocumentGetSvgOptions.ForceTextPath) == DocumentGetSvgOptions.ForceTextPath;
loadOptions.ForceRealText = (request.Options & DocumentGetSvgOptions.ForceRealText) == DocumentGetSvgOptions.ForceRealText;
loadOptions.DropImages = (request.Options & DocumentGetSvgOptions.DropImages) == DocumentGetSvgOptions.DropImages;
loadOptions.DropShapes = (request.Options & DocumentGetSvgOptions.DropShapes) == DocumentGetSvgOptions.DropShapes;
loadOptions.DropText = (request.Options & DocumentGetSvgOptions.DropText) == DocumentGetSvgOptions.DropText;
loadOptions.ForConversion = (request.Options & DocumentGetSvgOptions.ForConversion) == DocumentGetSvgOptions.ForConversion;
loadOptions.IgnoreXmlParsingErrors = (request.Options & DocumentGetSvgOptions.IgnoreXmlParsingErrors) == DocumentGetSvgOptions.IgnoreXmlParsingErrors;
using (var svgDocument = documentPage.GetSvg(loadOptions))
{
if (svgDocument != null)
{
if (!svgDocument.IsFlat)
{
svgDocument.Flat(null);
}
if (!svgDocument.IsRenderOptimized)
{
svgDocument.BeginRenderOptimize();
}
var svgBounds = svgDocument.Bounds;
if (!svgBounds.IsValid)
{
svgDocument.CalculateBounds(false);
}
}
if (svgDocument != null)
{
var gzip = ServiceHelper.GetSettingBoolean(ServiceHelper.Key_Svg_GZip);
var stream = ToStream(svgDocument, gzip);
// HttpContext is Web Api's version of WebOperationContext
//var currentContext = WebOperationContext.Current;
var currentContext = HttpContext.Current;
if (currentContext != null)
{
if (gzip)
{
currentContext.Response.Headers.Add("Content-Encoding", "gzip");
}
currentContext.Response.ContentType = "image/svg+xml";
currentContext.Response.Headers.Add("ContentLength", stream.Length.ToString());
}
// If we just return the stream, Web Api will try to serialize it.
// If the return type is "HttpResponseMessage" it will not serialize
// and you can set the content as you wish.
var response = new HttpResponseMessage();
response.Content = new StreamContent(stream);
ServiceHelper.UpdateCacheSettings(response);
return(response);
}
else
{
return(null);
}
}
}
}
public HttpResponseMessage GetThumbnail([FromUri] GetThumbnailRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equals to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
if (request.Width < 0 || request.Height < 0)
{
throw new ArgumentException("'width' and 'height' must be value greater than or equal to 0");
}
// Get the image format
var saveFormat = SaveImageFormat.GetFromMimeType(request.MimeType);
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
if (request.Width > 0 && request.Height > 0)
{
document.Images.ThumbnailPixelSize = new LeadSize(request.Width, request.Height);
}
var documentPage = document.Pages[pageNumber - 1];
using (var image = documentPage.GetThumbnailImage())
{
var stream = ImageSaver.SaveImage(image, document.RasterCodecs, saveFormat, request.MimeType, 0, 0);
// If we just return the stream, Web Api will try to serialize it.
// If the return type is "HttpResponseMessage" it will not serialize
// and you can set the content as you wish.
var response = new HttpResponseMessage();
response.Content = new StreamContent(stream);
ServiceHelper.UpdateCacheSettings(response);
return(response);
}
}
}
public HttpResponseMessage GetSvgBackImage([FromUri] GetSvgBackImageRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equals to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
if (request.Resolution < 0)
{
throw new ArgumentException("'resolution' must be a value greater than or equal to 0");
}
// Sanity check on other parameters
if (request.QualityFactor < 0 || request.QualityFactor > 100)
{
throw new ArgumentException("'qualityFactor' must be a value between 0 and 100");
}
if (request.Width < 0 || request.Height < 0)
{
throw new ArgumentException("'width' and 'height' must be value greater than or equal to 0");
}
// Get the image format
var saveFormat = SaveImageFormat.GetFromMimeType(request.MimeType);
var rasterBackColor = RasterColor.White;
if (request.BackColor != null)
{
try
{
rasterBackColor = RasterColor.FromHtml(request.BackColor);
}
catch (Exception ex)
{
Trace.WriteLine(string.Format("GetImage - Error:{1}{0}documentId:{2} pageNumber:{3}", Environment.NewLine, ex.Message, request.DocumentId, pageNumber), "Error");
}
}
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
var documentPage = document.Pages[pageNumber - 1];
var image = documentPage.GetSvgBackImage(rasterBackColor, request.Resolution);
if (image != null)
{
try
{
// Resize it (will only resize if both width and height are not 0), will also take care of FAX images (with different resolution)
ImageResizer.ResizeImage(image, request.Width, request.Height);
var stream = ImageSaver.SaveImage(image, document.RasterCodecs, saveFormat, request.MimeType, request.BitsPerPixel, request.QualityFactor);
// If we just return the stream, Web Api will try to serialize it.
// If the return type is "HttpResponseMessage" it will not serialize
// and you can set the content as you wish.
var response = new HttpResponseMessage();
response.Content = new StreamContent(stream);
ServiceHelper.UpdateCacheSettings(response);
return(response);
}
finally
{
image.Dispose();
}
}
else
{
// Instead of throwing an exception, let's return the smallest possible GIF
//throw new ServiceException("No SVG Back Image exists", HttpStatusCode.NotFound);
var response = new HttpResponseMessage();
var data = Convert.FromBase64String(PageController.smallest_GIF_base64);
var ms = new MemoryStream(data);
response.Content = new StreamContent(ImageSaver.PrepareStream(ms, "image/gif"));
ServiceHelper.UpdateCacheSettings(response);
return(response);
}
}
}
