From c699751c11265ec9f00d093cbc3346b8a8ea1b0d Mon Sep 17 00:00:00 2001
From: tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c>
Date: Tue, 15 Dec 2009 11:54:14 +0000
Subject: Index for Adobe.PDF-AS Signatures adjusted Configuration updates
 Minor bug (Configuration key for adobe sign field was adobeSignFieldName
 which did not match the key in the configuration)

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@519 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c
---
 .../wag/egov/egiz/pdf/AdobeSignatureHelper.java    | 31 ++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

(limited to 'src/main/java/at/knowcenter/wag/egov/egiz/pdf')

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java
index 6a7c545..9a52a84 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java
@@ -1,12 +1,14 @@
 package at.knowcenter.wag.egov.egiz.pdf;
 
 import java.util.HashMap;
+import java.util.Iterator;
 
 import javax.xml.datatype.DatatypeFactory;
 import javax.xml.datatype.XMLGregorianCalendar;
 
 import org.apache.log4j.Logger;
 
+import at.gv.egiz.pdfas.api.commons.Constants;
 import at.gv.egiz.pdfas.exceptions.ErrorCode;
 import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
 import at.gv.egiz.pdfas.utils.OgnlUtil;
@@ -16,9 +18,11 @@ import at.knowcenter.wag.egov.egiz.exceptions.SettingsException;
 import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
 
 import com.lowagie.text.Rectangle;
+import com.lowagie.text.pdf.AcroFields;
 import com.lowagie.text.pdf.PdfDate;
 import com.lowagie.text.pdf.PdfDictionary;
 import com.lowagie.text.pdf.PdfName;
+import com.lowagie.text.pdf.PdfObject;
 import com.lowagie.text.pdf.PdfSignature;
 import com.lowagie.text.pdf.PdfSignatureAppearance;
 import com.lowagie.text.pdf.PdfStamper;
@@ -31,7 +35,7 @@ import com.lowagie.text.pdf.PdfString;
  *
  */
 public class AdobeSignatureHelper {
-   private static final String ADOBE_SIGN_FIELDNAME_KEY = "adobeSignFieldName";
+   private static final String ADOBE_SIGN_FIELDNAME_KEY = "adobeSignFieldValue";
 
    private static final String ADOBE_SIG_ENABLED_KEY = "adobeSignEnabled";
 
@@ -54,17 +58,36 @@ public class AdobeSignatureHelper {
          SignatureObject so, ActualTablePos atp) throws PresentableException {
 
       try {
-         logger.info("create adobe signature field");
+         logger.debug("Creating adobe signature field.");
          PdfSignatureAppearance sap = stamper.getSignatureAppearance();
 
          String fieldName = getAdobeFieldName(so.getSignatureTypeDefinition().getType());
          // find field num
+         /*
          int nexSigNum = 1;
          String finalFieldName = fieldName + " #" + nexSigNum;
+         
          while (stamper.getAcroFields().getField(finalFieldName) != null) {
             nexSigNum++;
             finalFieldName = fieldName + " #" + nexSigNum;
          }
+         */
+         
+         AcroFields af = stamper.getAcroFields();
+         Iterator signatureNamesIt = af.getSignatureNames().iterator();
+         PdfName referenceFilterName = new PdfName(ADOBE_SIG_FILTER);
+         int nextSigNum = 1;
+         while (signatureNamesIt.hasNext()) {
+            PdfDictionary dictionary = (PdfDictionary) af.getSignatureDictionary((String) signatureNamesIt.next());
+            PdfObject filterName = dictionary.get(PdfName.FILTER);
+            if (filterName != null && filterName.isName()) {
+               PdfName name = (PdfName) filterName;
+               if (referenceFilterName.equals(name)) {
+                  nextSigNum++;
+               }
+            }
+         }
+         String finalFieldName = fieldName + " #" + nextSigNum;
 
          sap.setCrypto(null, null, null, null);
          // supress overlay text for visible signatures
@@ -88,11 +111,15 @@ public class AdobeSignatureHelper {
          // sig.setReason("reason is not visible");
          // sig.setContact("contact is not visible");
          // sig.setDate(new PdfDate());
+         
+         /* disabled in order to align adobe signature appearance for textual signatures with binary signatures
          if (si != null) {
             XMLGregorianCalendar c = DatatypeFactory.newInstance().newXMLGregorianCalendar(
                   si.getSignSignatureObject().date);
             sig.setDate(new PdfDate(c.toGregorianCalendar()));
          }
+         */
+         
          sig.setName(getAdobeSignText(so.getSignatureTypeDefinition().getType(), si));
          sap.setCryptoDictionary(sig);
 
-- 
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