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-rw-r--r--pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/PDFBoxPlaceholderExtractor.java6
-rw-r--r--pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignaturePlaceholderExtractor.java43
-rw-r--r--pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/positioning/Positioning.java4
-rw-r--r--pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java113
4 files changed, 81 insertions, 85 deletions
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/PDFBoxPlaceholderExtractor.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/PDFBoxPlaceholderExtractor.java
index 730a6581..256400a0 100644
--- a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/PDFBoxPlaceholderExtractor.java
+++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/PDFBoxPlaceholderExtractor.java
@@ -9,16 +9,12 @@ import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
public class PDFBoxPlaceholderExtractor implements PlaceholderExtractor {
@Override
- public SignaturePlaceholderData extract(PDFObject doc,
- String placeholderId, int matchMode) throws PdfAsException {
-
+ public SignaturePlaceholderData extract(PDFObject doc, String placeholderId, int matchMode) throws PdfAsException {
if (doc instanceof PDFBOXObject) {
PDFBOXObject object = (PDFBOXObject) doc;
return SignaturePlaceholderExtractor.extract(object.getDocument(),
placeholderId, matchMode);
}
-
throw new PdfAsException("INVALID STATE");
}
-
}
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignaturePlaceholderExtractor.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignaturePlaceholderExtractor.java
index 31bbb76f..f69b1788 100644
--- a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignaturePlaceholderExtractor.java
+++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/placeholder/SignaturePlaceholderExtractor.java
@@ -50,14 +50,8 @@ import java.awt.geom.AffineTransform;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.image.BufferedImage;
import java.io.IOException;
-import java.util.HashMap;
-import java.util.Hashtable;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
import java.util.Map.Entry;
-import java.util.Properties;
-import java.util.Set;
-import java.util.Vector;
import javassist.bytecode.stackmap.TypeData.ClassName;
@@ -109,7 +103,7 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl
private static Logger logger = LoggerFactory
.getLogger(SignaturePlaceholderExtractor.class);
- private List<SignaturePlaceholderData> placeholders = new Vector<SignaturePlaceholderData>();
+ private static List<SignaturePlaceholderData> placeholders = new Vector<>();
private int currentPage = 0;
private PDDocument doc;
@@ -131,10 +125,12 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl
addOperator( processor );
}
-
this.doc = doc;
}
+ public static List<SignaturePlaceholderData> listPlaceholders() {
+ return placeholders;
+ }
/**
* Search the document for placeholder images and possibly included
* additional info.<br/>
@@ -310,8 +306,8 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl
float yPos = unrotatedCTM.getYPosition();
float yScale = unrotatedCTM.getScaleY();
float y = yPos + yScale;
- float w = unrotatedCTM.getScaleX();;
-
+ float w = unrotatedCTM.getScaleX();
+
logger.debug("Page height: {}", page.getCropBox().getHeight());
logger.debug("Page width: {}", page.getCropBox().getWidth());
@@ -349,39 +345,31 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl
//TODO: pdfbox2 - was override
public Map<String, PDFont> getFonts() {
- if (fonts == null)
- {
+ if (fonts == null) {
// at least an empty map will be returned
// TODO we should return null instead of an empty map
fonts = new HashMap<String, PDFont>();
if(this.getResources() != null && this.getResources().getCOSObject() != null) {
COSDictionary fontsDictionary = (COSDictionary) this.getResources().getCOSObject().getDictionaryObject(COSName.FONT);
- if (fontsDictionary == null)
- {
+ if (fontsDictionary == null) {
// ignore we do not want to set anything, never when creating a signature!!!!!
//fontsDictionary = new COSDictionary();
//this.getResources().getCOSDictionary().setItem(COSName.FONT, fontsDictionary);
}
- else
- {
- for (COSName fontName : fontsDictionary.keySet())
- {
+ else {
+ for (COSName fontName : fontsDictionary.keySet()) {
COSBase font = fontsDictionary.getDictionaryObject(fontName);
// data-000174.pdf contains a font that is a COSArray, looks to be an error in the
// PDF, we will just ignore entries that are not dictionaries.
- if (font instanceof COSDictionary)
- {
+ if (font instanceof COSDictionary) {
PDFont newFont = null;
- try
- {
+ try {
newFont = PDFontFactory.createFont((COSDictionary) font);
}
- catch (IOException exception)
- {
+ catch (IOException exception) {
logger.error("error while creating a font", exception);
}
- if (newFont != null)
- {
+ if (newFont != null) {
fonts.put(fontName.getName(), newFont);
}
}
@@ -488,5 +476,4 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl
}
return null;
}
-
}
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/positioning/Positioning.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/positioning/Positioning.java
index 7942edcd..8aaa51ac 100644
--- a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/positioning/Positioning.java
+++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox2/positioning/Positioning.java
@@ -196,8 +196,7 @@ public class Positioning {
}
}
- if(make_new_page && counter!=0)
- {
+ if(make_new_page && counter!=0) {
make_new_page = false;
}
@@ -327,7 +326,6 @@ public class Positioning {
// we do have text take SIGNATURE_MARGIN
pos_y = page_height - page_length - SIGNATURE_MARGIN_VERTICAL;
if (pos_y - footer_line <= table_height) {
- ///TODO: new page should not be created when signature exists
if(counter!=0)
make_new_page = false;
else{
diff --git a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java
index c99bb608..aa61d623 100644
--- a/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java
+++ b/pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java
@@ -35,7 +35,7 @@ import at.gv.egiz.pdfas.lib.impl.ErrorExtractor;
import at.gv.egiz.pdfas.lib.impl.SignaturePositionImpl;
import at.gv.egiz.pdfas.lib.impl.configuration.SignatureProfileConfiguration;
import at.gv.egiz.pdfas.lib.impl.pdfbox2.PDFBOXObject;
-import at.gv.egiz.pdfas.lib.impl.pdfbox2.placeholder.SignatureFieldsExtractor;
+import at.gv.egiz.pdfas.lib.impl.pdfbox2.placeholder.SignaturePlaceholderExtractor;
import at.gv.egiz.pdfas.lib.impl.pdfbox2.positioning.Positioning;
import at.gv.egiz.pdfas.lib.impl.pdfbox2.utils.PdfBoxUtils;
import at.gv.egiz.pdfas.lib.impl.placeholder.PlaceholderFilter;
@@ -69,8 +69,6 @@ import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDStructureElement;
import org.apache.pdfbox.pdmodel.documentinterchange.logicalstructure.PDStructureTreeRoot;
import org.apache.pdfbox.pdmodel.graphics.color.PDOutputIntent;
-import org.apache.pdfbox.pdmodel.graphics.image.JPEGFactory;
-import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
import org.apache.pdfbox.pdmodel.interactive.digitalsignature.SignatureOptions;
import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm;
@@ -93,7 +91,6 @@ import javax.activation.DataSource;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
-import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
@@ -109,6 +106,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
PDFASSignatureInterface genericSigner) throws PdfAsException {
PDFAsVisualSignatureProperties properties = null;
+ String placeholder_id = "";
if (!(genericPdfObject instanceof PDFBOXObject)) {
// tODO:
@@ -134,13 +132,37 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
doc = pdfObject.getDocument();
//if signature already exists dont create new page
List<PDSignatureField> pdSignatureFieldList = doc.getSignatureFields();
+ PDSignature signature;
+
+ // sign a PDF with an existing empty signature, as created by the CreateEmptySignatureForm example.
+ String sigFieldName = pdfObject.getStatus().getSettings().getValue(SIGNATURE_FIELD_NAME);
+ signature = findExistingSignature(doc, sigFieldName);
+ if (signature == null) {
+ // create signature dictionary
+ signature = new PDSignature();
+ }
+ else {
+ isAdobeSigForm = true;
+ }
+
+ signature.setFilter(COSName.getPDFName(signer.getPDFFilter()));
+ signature.setSubFilter(COSName.getPDFName(signer.getPDFSubFilter()));
+ SignaturePlaceholderData signaturePlaceholderDataInit = PlaceholderFilter.checkPlaceholderSignatureLocation(pdfObject.getStatus(), pdfObject.getStatus().getSettings(), placeholder_id);
+ //gives a list of all placeholders
+ List<SignaturePlaceholderData> placeholders = SignaturePlaceholderExtractor.listPlaceholders();
+ if(checkAvailablePlaceholders(placeholders,existingSignatureLocations(doc))!=null)
+ {
+ placeholder_id = (checkAvailablePlaceholders(placeholders, existingSignatureLocations(doc))).getId();
+ };
SignaturePlaceholderData signaturePlaceholderData = PlaceholderFilter
- .checkPlaceholderSignature(pdfObject.getStatus(), pdfObject.getStatus().getSettings());
+ .checkPlaceholderSignatureLocation(pdfObject.getStatus(), pdfObject.getStatus().getSettings(),placeholder_id);
TablePos tablePos = null;
+ signature.setLocation(signaturePlaceholderData.getPlaceholderName());
+
if (signaturePlaceholderData != null) {
// Placeholder found!
logger.info("Placeholder data found.");
@@ -166,32 +188,8 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
logger.debug("Placeholder Position set to: " + tablePos.toString());
}
}
-
- //PDSignature signature = new PDSignature();
-
- PDSignature signature;
-
- // sign a PDF with an existing empty signature, as created by the CreateEmptySignatureForm example.
- String sigFieldName = pdfObject.getStatus().getSettings().getValue(SIGNATURE_FIELD_NAME);
- signature = findExistingSignature(doc, sigFieldName);
- //signature = findExistingSignature(doc, "ownerSignature");
- if (signature == null) {
- // create signature dictionary
- signature = new PDSignature();
-
- }
- else {
- isAdobeSigForm = true;
- }
-
- signature.setFilter(COSName.getPDFName(signer.getPDFFilter())); // default
- // filter
- signature.setSubFilter(COSName.getPDFName(signer.getPDFSubFilter()));
-
SignatureProfileSettings signatureProfileSettings = TableFactory
.createProfile(requestedSignature.getSignatureProfileID(), pdfObject.getStatus().getSettings());
-
-
//Check if input document is PDF-A conform
if (signatureProfileSettings.isPDFA()) {
DataSource origDoc = pdfObject.getOriginalDocument();
@@ -200,7 +198,6 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
//runPDFAPreflight(origDoc);
}
-
ValueResolver resolver = new ValueResolver(requestedSignature, pdfObject.getStatus());
String signerName = resolver.resolve("SIG_SUBJECT", signatureProfileSettings.getValue("SIG_SUBJECT"),
signatureProfileSettings);
@@ -351,7 +348,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
* (properties .getVisibleSignature())); sigbos.close();
*/
- if (signaturePlaceholderData != null) {
+ /*if (signaturePlaceholderData != null) {
InputStream fis = PADESPDFBOXSigner.class.getResourceAsStream("/placeholder/empty.jpg");
PDImageXObject img = JPEGFactory.createFromStream(doc, fis);
@@ -367,12 +364,13 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
logger.info("Placeholder name: " + signaturePlaceholderData.getPlaceholderName());
COSDictionary xobjectsDictionary = (COSDictionary) page.getResources().getCOSObject()
.getDictionaryObject(COSName.XOBJECT);
+
+
xobjectsDictionary.setItem(signaturePlaceholderData.getPlaceholderName(), img);
xobjectsDictionary.setNeedToBeUpdated(true);
page.getResources().getCOSObject().setNeedToBeUpdated(true);
logger.info("Placeholder name: " + signaturePlaceholderData.getPlaceholderName());
-
- }
+ }*/
if (signatureProfileSettings.isPDFA() || signatureProfileSettings.isPDFA3()) {
PDDocumentCatalog root = doc.getDocumentCatalog();
@@ -597,13 +595,11 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
signatureField.setAlternateFieldName(sigFieldName);
}
-
ntn.getCOSObject().setNeedToBeUpdated(true);
sigBlock.getCOSObject().setNeedToBeUpdated(true);
structureTreeRoot.getCOSObject().setNeedToBeUpdated(true);
objectDic.setNeedToBeUpdated(true);
docElement.getCOSObject().setNeedToBeUpdated(true);
-
}
} catch (Throwable e) {
if (signatureProfileSettings.isPDFUA() == true) {
@@ -652,9 +648,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
// Ignore
}
}
-
logger.debug("Signature done!");
-
}
}
@@ -722,8 +716,7 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
}
@Override
- public PDFASSignatureExtractor buildBlindSignaturInterface(X509Certificate certificate, String filter,
- String subfilter, Calendar date) {
+ public PDFASSignatureExtractor buildBlindSignaturInterface(X509Certificate certificate, String filter, String subfilter, Calendar date) {
return new SignatureDataExtractor(certificate, filter, subfilter, date);
}
@@ -867,29 +860,51 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants {
}
// Find an existing signature.
- private PDSignature findExistingSignature(PDDocument doc, String sigFieldName)
- {
+ private PDSignature findExistingSignature(PDDocument doc, String sigFieldName) {
PDSignature signature = null;
PDSignatureField signatureField;
PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
- if (acroForm != null)
- {
+ if (acroForm != null) {
signatureField = (PDSignatureField) acroForm.getField(sigFieldName);
- if (signatureField != null)
- {
+ if (signatureField != null) {
// retrieve signature dictionary
signature = signatureField.getSignature();
- if (signature == null)
- {
+ if (signature == null) {
signature = new PDSignature();
signatureField.getCOSObject().setItem(COSName.V, signature);
}
- else
- {
+ else {
throw new IllegalStateException("The signature field " + sigFieldName + " is already signed.");
}
}
}
return signature;
}
+
+ private List<String> existingSignatureLocations(PDDocument doc) {
+ List<String> existingLocations = new ArrayList<>();
+ try {
+ List <PDSignature> pdSignatureList = doc.getSignatureDictionaries();
+ if(pdSignatureList.size() != 0) {
+ for(PDSignature sig : pdSignatureList) {
+ existingLocations.add(sig.getLocation());
+ }
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ return existingLocations;
+ }
+
+ //find first available placeholder
+ public SignaturePlaceholderData checkAvailablePlaceholders(List<SignaturePlaceholderData> placeholders, List<String> existingPlaceholders) {
+ SignaturePlaceholderData result = null;
+ for(int i = 0; i < placeholders.size(); ++i) {
+ if(!existingPlaceholders.contains(placeholders.get(i).getPlaceholderName())) {
+ result = placeholders.get(i);
+ break;
+ }
+ }
+ return result;
+ }
} \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 06:54:16 +0000