/**
* @Method Method that inserts the GraphSign in the pdf document and call for signing it
* @Params DocumentData source document to be signed
* @Params GraphSign sign Image and metadata about the Graphical Sign
* @Params signer data
* @Return true if the document is correctly signed, false if something wrong
*/
public bool doSignature(DocumentData source,GraphSign sign, string metadata, Signer signer)
{
bool result = false;
bool insertedSign = false;
/* if (this.open(source))
{
Dictionary<String, String> hMap = this.reader.Info;
String keywords = "";
hMap.TryGetValue("Keywords",out keywords);
keywords += metadata+Properties.Settings.Default.stringSeparator;
this.Log.Debug("Keywords length " + keywords.Length);
hMap.Remove("Keywords");
hMap.Add("Keywords", keywords);
//Copy PDF
this.Log.Debug("Starting PDF copy");
for (int i = 1; i <= reader.NumberOfPages; i++)
{
doc.SetPageSize(reader.GetPageSize(i));
doc.NewPage();
PdfContentByte cb = writer.DirectContent;
PdfImportedPage importedPage = writer.GetImportedPage(reader, i);
int rotation = reader.GetPageRotation(i);
if (rotation == 90 || rotation == 270)
cb.AddTemplate(importedPage, 0, -1.0F, 1.0F, 0, 0, reader.GetPageSizeWithRotation(i).Height);
else
cb.AddTemplate(importedPage, 1.0F, 0, 0, 1.0F, 0, 0);
//Insert Graph image on coordenates
if (i == signer.Page)
{
this.Log.Debug(String.Format("Trying to insert graph sign in Page {0}, x={1}, y={2}", signer.Page, signer.X, signer.Y));
insertedSign = this.insertGraphSign(sign, cb, signer.X, signer.Y);
}
}
* */
insertedSign = true;
if (insertedSign)
{
// this.Log.Debug("Graph Sign inserted correctly, starting PAdES process");
//Do PAdES
// this.close();
DigitalSignUtils.signPDF(source, metadata, sign,signer);
this.Log.Debug("Moving files");
if(File.Exists(source.Docpath+"-signed.pdf"))
File.Delete(source.Docpath+"-signed.pdf");
File.Copy(source.Docsignedpath, source.Docpath + "-signed.pdf");
result = true;
}
// }
// this.close();
return result;
}
/**
*
*/
private String[] getSignString(GraphSign sign)
{
String[] result = new String[sign.Points.Count];
int i = 0;
foreach (BioSignPoint point in sign.Points)
{
result[i] = "" + point.Order + "," + point.X + "," + point.Y + "," + point.Pressure + "," + point.Time.Ticks;
i++;
}
return result;
}
private void onGetReportException(wgssSTU.ITabletEventsException tabletEventsException)
{
try
{
tabletEventsException.getException();
}
catch (Exception e)
{
//TODO Log4NET
m_tablet.disconnect();
m_tablet = null;
this.sign = null;
this.Close();
}
}
public WacomPadForm(wgssSTU.IUsbDevice usbDevice, int points)
{
semaphore = true;
this.minPoints = points;
if (presingString != null)
{
presignText.Text = presingString;
}
this.sign = new GraphSign();
// This is a DPI aware application, so ensure you understand how .NET client coordinates work.
// Testing using a Windows installation set to a high DPI is recommended to understand how
// values get scaled or not.
this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
InitializeComponent();
m_tablet = new wgssSTU.Tablet();
wgssSTU.ProtocolHelper protocolHelper = new wgssSTU.ProtocolHelper();
// A more sophisticated applications should cycle for a few times as the connection may only be
// temporarily unavailable for a second or so.
// For example, if a background process such as Wacom STU Display
// is running, this periodically updates a slideshow of images to the device.
wgssSTU.IErrorCode ec = m_tablet.usbConnect(usbDevice, true);
if (ec.value == 0)
{
m_capability = m_tablet.getCapability();
m_information = m_tablet.getInformation();
}
else
{
throw new Exception(ec.message);
}
this.SuspendLayout();
this.AutoScaleDimensions = new System.Drawing.SizeF(96F, 96F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Dpi;
// Set the size of the client window to be actual size,
// based on the reported DPI of the monitor.
Size clientSize = new Size((int)(m_capability.tabletMaxX / 2540F * 96F), (int)(m_capability.tabletMaxY / 2540F * 96F));
this.ClientSize = clientSize;
this.ResumeLayout();
m_btns = new Button[3];
if (usbDevice.idProduct != 0x00a2)
{
// Place the buttons across the bottom of the screen.
int w2 = m_capability.screenWidth / 3;
int w3 = m_capability.screenWidth / 3;
int w1 = m_capability.screenWidth - w2 - w3;
int y = m_capability.screenHeight * 6 / 7;
int h = m_capability.screenHeight - y;
presignText.Bounds = new Rectangle(0, 0, m_capability.screenWidth, h);
m_btns[0].Bounds = new Rectangle(0, y, w1, h);
m_btns[1].Bounds = new Rectangle(w1, y, w2, h);
m_btns[2].Bounds = new Rectangle(w1 + w2, y, w3, h);
}
else
{
// The STU-300 is very shallow, so it is better to utilise
// the buttons to the side of the display instead.
int x = m_capability.screenWidth * 3 / 4;
int w = m_capability.screenWidth - x;
int h2 = m_capability.screenHeight / 3;
int h3 = m_capability.screenHeight / 3;
int h1 = m_capability.screenHeight - h2 - h3;
m_btns[0].Bounds = new Rectangle(x, 0, w, h1);
m_btns[1].Bounds = new Rectangle(x, h1, w, h2);
m_btns[2].Bounds = new Rectangle(x, h1 + h2, w, h3);
}
m_btns[0].Text = "Aceptar";
m_btns[1].Text = "Borrar";
m_btns[2].Text = "Cancelar";
m_btns[0].Click = new EventHandler(btnOk_Click);
m_btns[1].Click = new EventHandler(btnClear_Click);
m_btns[2].Click = new EventHandler(btnCancel_Click);
// Disable color if the STU-520 bulk driver isn't installed.
// This isn't necessary, but uploading colour images with out the driver
// is very slow.
// Calculate the encodingMode that will be used to update the image
ushort idP = m_tablet.getProductId();
wgssSTU.encodingFlag encodingFlag = (wgssSTU.encodingFlag)protocolHelper.simulateEncodingFlag(idP, 0);
bool useColor = false;
if ((encodingFlag & (wgssSTU.encodingFlag.EncodingFlag_16bit | wgssSTU.encodingFlag.EncodingFlag_24bit)) != 0)
{
if (m_tablet.supportsWrite())
useColor = true;
}
if ((encodingFlag & wgssSTU.encodingFlag.EncodingFlag_24bit) != 0)
{
m_encodingMode = m_tablet.supportsWrite() ? wgssSTU.encodingMode.EncodingMode_24bit_Bulk : wgssSTU.encodingMode.EncodingMode_24bit;
}
else if ((encodingFlag & wgssSTU.encodingFlag.EncodingFlag_16bit) != 0)
{
m_encodingMode = m_tablet.supportsWrite() ? wgssSTU.encodingMode.EncodingMode_16bit_Bulk : wgssSTU.encodingMode.EncodingMode_16bit;
}
else
{
// assumes 1bit is available
m_encodingMode = wgssSTU.encodingMode.EncodingMode_1bit;
}
// Size the bitmap to the size of the LCD screen.
// This application uses the same bitmap for both the screen and client (window).
// However, at high DPI, this bitmap will be stretch and it would be better to
// create individual bitmaps for screen and client at native resolutions.
m_bitmap = new Bitmap(m_capability.screenWidth, m_capability.screenHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
{
Graphics gfx = Graphics.FromImage(m_bitmap);
gfx.Clear(Color.White);
// Uses pixels for units as DPI won't be accurate for tablet LCD.
Font font = new Font(FontFamily.GenericSansSerif, m_btns[0].Bounds.Height / 2F, GraphicsUnit.Pixel);
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
if (useColor)
{
gfx.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
}
else
{
// Anti-aliasing should be turned off for monochrome devices.
gfx.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
}
gfx.DrawRectangle(Pens.Black, presignText.Bounds);
gfx.DrawString(presignText.Text, font, Brushes.Black, presignText.Bounds, sf);
// Draw the buttons
for (int i = 0; i < m_btns.Length; ++i)
{
if (useColor)
{
gfx.FillRectangle(Brushes.LightGray, m_btns[i].Bounds);
}
gfx.DrawRectangle(Pens.Black, m_btns[i].Bounds);
gfx.DrawString(m_btns[i].Text, font, Brushes.Black, m_btns[i].Bounds, sf);
}
gfx.Dispose();
font.Dispose();
// Finally, use this bitmap for the window background.
this.BackgroundImage = m_bitmap;
this.BackgroundImageLayout = ImageLayout.Stretch;
}
// Now the bitmap has been created, it needs to be converted to device-native
// format.
{
// Unfortunately it is not possible for the native COM component to
// understand .NET bitmaps. We have therefore convert the .NET bitmap
// into a memory blob that will be understood by COM.
System.IO.MemoryStream stream = new System.IO.MemoryStream();
m_bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
m_bitmapData = (byte[])protocolHelper.resizeAndFlatten(stream.ToArray(), 0, 0, (uint)m_bitmap.Width, (uint)m_bitmap.Height, m_capability.screenWidth, m_capability.screenHeight, (byte)m_encodingMode, wgssSTU.Scale.Scale_Fit, 0, 0);
protocolHelper = null;
stream.Dispose();
}
// If you wish to further optimize image transfer, you can compress the image using
// the Zlib algorithm.
bool useZlibCompression = false;
if (!useColor && useZlibCompression)
{
// m_bitmapData = compress_using_zlib(m_bitmapData); // insert compression here!
m_encodingMode |= wgssSTU.encodingMode.EncodingMode_Zlib;
}
// Calculate the size and cache the inking pen.
SizeF s = this.AutoScaleDimensions;
float inkWidthMM = 0.7F;
m_penInk = new Pen(Color.DarkBlue, inkWidthMM / 25.4F * ((s.Width + s.Height) / 2F));
m_penInk.StartCap = m_penInk.EndCap = System.Drawing.Drawing2D.LineCap.Round;
m_penInk.LineJoin = System.Drawing.Drawing2D.LineJoin.Round;
// Add the delagate that receives pen data.
m_tablet.onPenData += new wgssSTU.ITabletEvents2_onPenDataEventHandler(onPenData);
m_tablet.onGetReportException += new wgssSTU.ITabletEvents2_onGetReportExceptionEventHandler(onGetReportException);
// Initialize the screen
clearScreen();
// Enable the pen data on the screen (if not already)
m_tablet.setInkingMode(0x01);
}
private void btnCancel_Click(object sender, EventArgs e)
{
// You probably want to add additional processing here.
this.sign = null;
m_tablet.writeImage((byte)m_encodingMode, m_bitmapData);
this.Invoke((MethodInvoker)delegate
{
this.Close();
});
}
/**
*
*
*/
public static void signPDF(DocumentData doc, String metadata, GraphSign sign, Signer signer)
{
ILog Log;
Log = LogManager.GetLogger(Properties.Settings.Default.logName);
if (!File.Exists(doc.Docsignedpath /*+ "-signed.pdf"*/))
{
File.Copy(doc.Docpath, doc.Docsignedpath);
}
try
{
PdfReader reader = new PdfReader(doc.Docsignedpath);
if (File.Exists(doc.Docsignedpath + "-signed.pdf"))
File.Delete(doc.Docsignedpath + "-signed.pdf");
FileStream fos = new FileStream(doc.Docsignedpath + "-signed.pdf", FileMode.CreateNew, FileAccess.Write);
doc.Docsignedpath = doc.Docsignedpath + "-signed.pdf";
Log.Debug(String.Format("Creating Stamper for doc {0}",doc.Docname));
PdfStamper stp = PdfStamper.CreateSignature(reader, fos, '\0', null, true);
Log.Debug(String.Format("Creating Certificate for doc {0}", doc.Docname));
Org.BouncyCastle.X509.X509Certificate[] chain = crearCertificado();
Log.Debug(String.Format("Reading private key for doc {0}", doc.Docname));
AsymmetricKeyParameter pk = readPrivateKey();
stp.Writer.CloseStream = false;
LtvVerification v = stp.LtvVerification;
//AcroFields af = stp.AcroFields;
Log.Debug(String.Format("Adding metadata for doc {0}", doc.Docname));
//stp.MoreInfo = metadata;
// foreach (String sigName in af.GetSignatureNames())
// {
// v.AddVerification(sigName, new OcspClientBouncyCastle(), new CrlClientOffline(null), LtvVerification.CertificateOption.WHOLE_CHAIN, LtvVerification.Level.OCSP_CRL, LtvVerification.CertificateInclusion.NO);
// }
PdfSignatureAppearance sap = stp.SignatureAppearance;
//sap.SignatureRenderingMode = PdfSignatureAppearance.RenderingMode.DESCRIPTION;
sap.Reason = metadata;
sap.Location = "";
sign.Image.MakeTransparent();
sap.Image = iTextSharp.text.Image.GetInstance(sign.Image, System.Drawing.Imaging.ImageFormat.Png);
sap.Layer2Text = "";
//Preserve some space for the contents
int contentEstimated = 15000;
Dictionary<PdfName, int> exc = new Dictionary<PdfName, int>();
exc.Add(PdfName.CONTENTS, (contentEstimated * 2 + 2));
//Add timestamp
Log.Debug(String.Format("Adding timestamp for doc {0}", doc.Docname));
TSAClientBouncyCastle tsc = new TSAClientBouncyCastle(Properties.Settings.Default.tsaUrl, Properties.Settings.Default.tsaUser, Properties.Settings.Default.tsaPass, contentEstimated, DigestAlgorithms.SHA512);
// Creating the signature
//LtvTimestamp.Timestamp(sap, tsc, null);
//Org.BouncyCastle.Crypto.BouncyCastleDigest messageDigest = MessageDigest.getInstance("SHA1");
//IExternalDigest digest = new Org.BouncyCastle.Crypto.BouncyCastleDigest();
//RSACryptoServiceProvider crypt = (RSACryptoServiceProvider)cert.PrivateKey;
Log.Debug(String.Format("Dreating signature for doc {0}", doc.Docname));
IExternalSignature signature = new PrivateKeySignature(pk, DigestAlgorithms.SHA512);
sap.Layer2Text = "Huella: "+signature.GetHashCode();
sap.SetVisibleSignature(new Rectangle(signer.X, signer.Y, 200, 200), signer.Page, signer.Nombre+index);
MakeSignature.SignDetached(sap, signature, chain, null, null, tsc, 0, CryptoStandard.CMS);
Log.Debug(String.Format("Closing file for doc {0}", doc.Docname));
stp.Close();
fos.Close();
reader.Close();
}
catch (IOException ex)
{
Log.Error("IOException", ex);
}
catch (DocumentException dex)
{
Log.Error("DocumentException", dex);
}
}
/**
* @Method insert Sign Image in coordenates
* @Params GraphSign sign biometrical graph sign
* @Params PdfContentByte page where image will be inserted
* @Params int x X Coordinate
* @Params int y Y Coordinate
* @Return true if all its OK, false if something wrong
*/
private bool insertGraphSign(GraphSign sign,PdfContentByte page, int x, int y)
{
try
{
//sign.Image.MakeTransparent(System.Drawing.Color.White);
//sign.Image.Save(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "test.png", System.Drawing.Imaging.ImageFormat.Png);
Image i = Image.GetInstance((System.Drawing.Image)sign.Image, new BaseColor(System.Drawing.Color.Transparent));
//i.BackgroundColor = BaseColor.
float percentage = float.Parse(Properties.Settings.Default.imageRatio)/100;
//float percentage = 0.33f;
page.AddImage(i, i.Width*percentage, 0, 0, i.Height*percentage, x, y);
return true;
}
catch (Exception ex)
{
//Logging exception
Log.Error(ex.Message);
Log.Error(ex.StackTrace);
return false;
}
}
/**
* @Method Method that inserts the GraphSign in the pdf document and call for signing it
* @Params DocumentData source document to be signed
* @Params GraphSign sign Image and metadata about the Graphical Sign
* @Params jsonSign Graphometric info JSON serialized
* @Params signer data
* @Return true if the document is correctly signed, false if something wrong
*/
internal bool doSignature(DocumentData doc, GraphSign sign, String jsonSign, Signer signer, bool b)
{
String encrypted = jsonSign;
return this.doSignature(doc, sign, encrypted,signer);
}
/**
* @Method Method that inserts the GraphSign in the pdf document and call for signing it
* @Params DocumentData source document to be signed
* @Params GraphSign sign Image and metadata about the Graphical Sign
* @Params signArray String Array with Graphometric info
* @Params signer data
* @Return true if the document is correctly signed, false if something wrong
*/
internal bool doSignature(DocumentData doc, GraphSign sign, string[] signArray, Signer signer)
{
String encrypted ="";
foreach (String s in signArray)
encrypted += s;
//this.Log.Debug("Sign String to encrypt " + encrypted);
encrypted = DigitalSignUtils.encrypt(encrypted);
//this.Log.Debug("Sign String encrypted " + encrypted);
return this.doSignature(doc, sign, encrypted,signer);
}
