From fa05e97f3e4343694041be24e8ff779a76cd36f6 Mon Sep 17 00:00:00 2001
From: ferbas <ferbas@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Wed, 2 Dec 2009 16:47:24 +0000
Subject: added adobe sig attribute
git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@474 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
.../wag/egov/egiz/pdf/BinarySignature.java | 80 +++++++++++++++++++++-
1 file changed, 77 insertions(+), 3 deletions(-)
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
index d0cd951..f07d8c6 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
@@ -28,9 +28,13 @@ import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
+import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
+import javax.xml.datatype.DatatypeFactory;
+import javax.xml.datatype.XMLGregorianCalendar;
+
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@@ -40,6 +44,7 @@ import at.gv.egiz.pdfas.exceptions.pdf.CaptionNotFoundException;
import at.gv.egiz.pdfas.exceptions.pdf.KZSettingNotFoundException;
import at.gv.egiz.pdfas.framework.input.PdfDataSource;
import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
import at.knowcenter.wag.egov.egiz.exceptions.PlaceholderException;
@@ -58,6 +63,7 @@ import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PRStream;
import com.lowagie.text.pdf.PdfArray;
import com.lowagie.text.pdf.PdfContentByte;
+import com.lowagie.text.pdf.PdfDate;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfIndirectObject;
import com.lowagie.text.pdf.PdfIndirectReference;
@@ -66,6 +72,8 @@ import com.lowagie.text.pdf.PdfNumber;
import com.lowagie.text.pdf.PdfObject;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfReader;
+import com.lowagie.text.pdf.PdfSignature;
+import com.lowagie.text.pdf.PdfSignatureAppearance;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfStamperImp;
import com.lowagie.text.pdf.PdfString;
@@ -775,7 +783,7 @@ public abstract class BinarySignature
* Forwarded exception.
*/
public static IncrementalUpdateInformation writeIncrementalUpdate(PdfDataSource original_document, DataSink written_pdf, PdfPTable pdf_table, String profile, PositioningInstruction pi,
- List variable_field_definitions, List all_field_definitions, List invisible_field_definitions, String invisibleKZString, TimeStamper timeStamper) throws PresentableException
+ List variable_field_definitions, List all_field_definitions, List invisible_field_definitions, String invisibleKZString, TimeStamper timeStamper, SignatorInformation si) throws PresentableException
{
try
{
@@ -800,7 +808,8 @@ public abstract class BinarySignature
// IMPORTANT: append the new content to the original document using
// incremental updated
// The stamper allows this by setting append = true
- PdfStamper stamper = new PdfStamper(reader, baos, '\0', true);
+ //PdfStamper stamper = new PdfStamper(reader, baos, '\0', true);
+ PdfStamper stamper = PdfStamper.createSignature(reader, baos, '\0', null, true);
if (pi.isMakeNewPage())
{
@@ -895,7 +904,8 @@ public abstract class BinarySignature
createEgizDict(stamper, table_template, iui, variable_field_definitions, all_field_definitions, invisible_field_definitions, invisibleKZString);
}
- stamper.close();
+ //stamper.close();
+ createAdobeSigAttrib(stamper, si, atp); // here..., stamper is closed
// System.out.println("wprinz: STAMPING FINISHED");
// just to make sure the stream is really closed
@@ -916,6 +926,70 @@ public abstract class BinarySignature
}
}
+ /**
+ * Schreibt Adobe-pdf signatur attribut mittels itext
+ * @param stamper
+ * @param si
+ * @param atp
+ */
+ public static void createAdobeSigAttrib(PdfStamper stamper, SignatorInformation si, ActualTablePos atp) {
+
+ try {
+ logger.info("create adobe signature field");
+ PdfSignatureAppearance sap = stamper.getSignatureAppearance();
+
+ sap.setCrypto(null, null, null, null);
+ // supress overlay text for visible signatures
+ sap.setLayer2Text("");
+ sap.setLayer4Text("");
+
+ // the following line marks the sig block as adobe sig
+ //sap.setVisibleSignature(createRectangleFromTablePos(iui.actualTablePos), iui.actualTablePos.page, "PDF-AS-Signatur");
+ sap.setVisibleSignature(new Rectangle(0, 0, 0, 0), atp.page, "PDF-AS-Signatur");
+ String subfilter = "urn:pdfsigfilter:bka.gv.at:binaer:v1.1.0";
+ if (si != null) {
+ subfilter = si.getSignSignatureObject().kz;
+ }
+ PdfSignature sig = new PdfSignature(new PdfName("Adobe.PDF-AS"), new PdfName(subfilter));
+ // the following fields are not shown by the reader, because its is no Standard filter
+ //sig.setLocation("location is not visible");
+ //sig.setReason("reason is not visible");
+ //sig.setContact("contact is not visible");
+ sig.setDate(new PdfDate());
+ if (si != null) {
+ XMLGregorianCalendar c = DatatypeFactory.newInstance().newXMLGregorianCalendar(si.getSignSignatureObject().date);
+ sig.setDate(new PdfDate(c.toGregorianCalendar()));
+ }
+ String cn = null;
+ if (si != null) {
+ cn = si.getSignSignatureObject().certSubjectDNPart("CN");
+ }
+ if (cn == null) {
+ cn = "PDF-AS";
+ }
+ sig.setName(cn);
+ sap.setCryptoDictionary(sig);
+
+ // content element is mandatory but empty
+ HashMap exc = new HashMap();
+ exc.put(PdfName.CONTENTS, new Integer(2));
+ sap.preClose(exc); // *2+2
+
+ PdfDictionary dic = new PdfDictionary();
+ dic.put(PdfName.CONTENTS, new PdfString((String)null).setHexWriting(true));
+ sap.close(dic);
+ } catch (Exception ex) {
+ logger.error("error", ex);
+ throw new RuntimeException(ex );
+ }
+
+ //stamper.close();
+ }
+
+ private static Rectangle createRectangleFromTablePos(ActualTablePos pos) {
+ return new Rectangle(pos.x, pos.y, pos.x + pos.width, pos.y - pos.height);
+ }
+
/**
* Creates the EGIZ Dictionary and adds it to the document.
*
--
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