1 files changed, 141 insertions, 0 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
new file mode 100644
index 00000000..82ee57fe
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox/PADESPDFBOXSigner.java
@@ -0,0 +1,141 @@
+package at.gv.egiz.pdfas.lib.impl.signing.pdfbox;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Calendar;
+
+import org.apache.pdfbox.exceptions.COSVisitorException;
+import org.apache.pdfbox.exceptions.SignatureException;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature;
+import org.apache.pdfbox.pdmodel.interactive.digitalsignature.SignatureInterface;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import at.gv.egiz.pdfas.common.exceptions.PdfAsException;
+import at.gv.egiz.pdfas.common.messages.MessageResolver;
+import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings;
+import at.gv.egiz.pdfas.common.utils.StreamUtils;
+import at.gv.egiz.pdfas.common.utils.TempFileHelper;
+import at.gv.egiz.pdfas.lib.api.sign.IPlainSigner;
+import at.gv.egiz.pdfas.lib.impl.signing.IPdfSigner;
+import at.gv.egiz.pdfas.lib.impl.stamping.TableFactory;
+import at.gv.egiz.pdfas.lib.impl.stamping.ValueResolver;
+import at.gv.egiz.pdfas.lib.impl.status.PDFObject;
+import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature;
+
+public class PADESPDFBOXSigner implements IPdfSigner {
+
+    private static final Logger logger = LoggerFactory.getLogger(PADESPDFBOXSigner.class);
+
+    public void signPDF(PDFObject pdfObject, RequestedSignature requestedSignature, IPlainSigner signer)
+            throws PdfAsException {
+        String fisTmpFile = null;
+        
+        TempFileHelper helper = pdfObject.getStatus().getTempFileHelper();
+        
+        try {
+            fisTmpFile = helper.getStaticFilename();
+
+            // write to temporary file
+            FileOutputStream fos = new FileOutputStream(new File(fisTmpFile));
+            fos.write(pdfObject.getStampedDocument());
+
+
+            FileInputStream fis = new FileInputStream(new File(fisTmpFile));
+
+            PDDocument doc = PDDocument.load(
+                    new ByteArrayInputStream(pdfObject.getStampedDocument()));
+
+            PDSignature signature = new PDSignature();
+            signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE); // default filter
+            signature.setSubFilter(PDSignature.SUBFILTER_ETSI_CADES_DETACHED);
+
+            SignatureProfileSettings signatureProfileSettings = TableFactory
+					.createProfile(requestedSignature.getSignatureProfileID(), 
+							pdfObject.getStatus().getSettings());
+            
+            ValueResolver resolver = new ValueResolver();
+            String signerName = resolver.resolve("SIG_SUBJECT", signatureProfileSettings.getValue("SIG_SUBJECT"), 
+            		signatureProfileSettings, requestedSignature);
+            // TODO: change signature data from certificate
+            signature.setName(signerName);
+            //signature.setLocation("signer location");
+            signature.setReason("PDF-AS Signatur");
+
+
+            // the signing date, needed for valid signature
+            signature.setSignDate(Calendar.getInstance());
+
+            doc.addSignature(signature, new PdfboxSignerWrapper(signer, signature));
+
+            // pdfbox patched (FIS -> IS)
+            doc.saveIncremental(fis, fos);
+            fis.close();
+            fos.close();
+
+            fis = new FileInputStream(new File(fisTmpFile));
+
+            // write to resulting output stream
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            bos.write(StreamUtils.inputStreamToByteArray(fis));
+            fis.close();
+            bos.close();
+
+            pdfObject.setSignedDocument(bos.toByteArray());
+
+            helper.deleteFile(fisTmpFile);
+
+        } catch (IOException e) {
+            logger.error(MessageResolver.resolveMessage("error.pdf.sig.01"), e);
+            throw new PdfAsException("error.pdf.sig.01", e);
+        } catch(SignatureException e) {
+            logger.error(MessageResolver.resolveMessage("error.pdf.sig.01"), e);
+            throw new PdfAsException("error.pdf.sig.01", e);
+        } catch (COSVisitorException e) {
+            logger.error(MessageResolver.resolveMessage("error.pdf.sig.01"), e);
+            throw new PdfAsException("error.pdf.sig.01", e);
+        }
+    }
+
+
+    public void signPDF(String src, String dst, SignatureInterface signer) throws Exception {
+        //ByteArrayOutputStream os = new ByteArrayOutputStream();
+        FileInputStream fis = new FileInputStream(new File(src));
+        FileOutputStream fos = new FileOutputStream(new File(dst));
+        byte[] buffer = new byte[8 * 1024];
+        byte[] outbuffer;
+        int c;
+        while ((c = fis.read(buffer)) != -1)
+        {
+            fos.write(buffer, 0, c);
+        }
+        fis.close();
+        PDDocument doc = PDDocument.load(src);
+        fis = new FileInputStream(new File(dst));
+
+        PDSignature signature = new PDSignature();
+        signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE); // default filter
+
+        signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
+        signature.setName("Andraes Fitzek");
+        signature.setLocation("signer location");
+        signature.setReason("Test Signature");
+
+        // the signing date, needed for valid signature
+        signature.setSignDate(Calendar.getInstance());
+
+        doc.addSignature(signature, signer);
+
+        // pdfbox patched (FIS -> IS)
+        doc.saveIncremental(fis, fos);
+
+        fos.close();
+       // FileUtils.writeByteArrayToFile(new File(dst), os.toByteArray());
+    }
+
+}