diff options
Diffstat (limited to 'pdf-as-pdfbox-2/src/main/java')
| -rw-r--r-- | pdf-as-pdfbox-2/src/main/java/at/gv/egiz/pdfas/lib/impl/signing/pdfbox2/PADESPDFBOXSigner.java | 89 |
1 files changed, 81 insertions, 8 deletions
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 37c8899d..8965ce0e 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 @@ -28,19 +28,14 @@ import iaik.x509.X509Certificate; import java.awt.Graphics2D; import java.awt.Image; import java.awt.image.BufferedImage; -import java.io.ByteArrayOutputStream; -import java.io.File; -import java.io.FileInputStream; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; +import java.io.*; import java.net.URL; import java.util.ArrayList; import java.util.Calendar; import java.util.List; import org.apache.commons.io.IOUtils; +import org.apache.commons.lang3.tuple.ImmutablePair; import org.apache.pdfbox.cos.COSArray; import org.apache.pdfbox.cos.COSBase; import org.apache.pdfbox.cos.COSDictionary; @@ -65,6 +60,12 @@ import org.apache.pdfbox.pdmodel.interactive.digitalsignature.SignatureOptions; import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm; import org.apache.pdfbox.pdmodel.interactive.form.PDField; import org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField; +import org.apache.pdfbox.preflight.Format; +import org.apache.pdfbox.preflight.PreflightDocument; +import org.apache.pdfbox.preflight.ValidationResult; +import org.apache.pdfbox.preflight.exception.SyntaxValidationException; +import org.apache.pdfbox.preflight.exception.ValidationException; +import org.apache.pdfbox.preflight.parser.PreflightParser; import org.apache.pdfbox.rendering.ImageType; import org.apache.pdfbox.rendering.PDFRenderer; import org.slf4j.Logger; @@ -105,6 +106,8 @@ import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction; import at.knowcenter.wag.egov.egiz.pdf.TablePos; import at.knowcenter.wag.egov.egiz.table.Table; +import javax.activation.DataSource; + public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants { private static final Logger logger = LoggerFactory.getLogger(PADESPDFBOXSigner.class); @@ -176,6 +179,15 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants { SignatureProfileSettings signatureProfileSettings = TableFactory .createProfile(requestedSignature.getSignatureProfileID(), pdfObject.getStatus().getSettings()); + /* + * Check if input document is PDF-A conform + * + if (signatureProfileSettings.isPDFA()) { + // TODO: run preflight parser + runPDFAPreflight(pdfObject.getOriginalDocument()); + } + */ + ValueResolver resolver = new ValueResolver(requestedSignature, pdfObject.getStatus()); String signerName = resolver.resolve("SIG_SUBJECT", signatureProfileSettings.getValue("SIG_SUBJECT"), signatureProfileSettings); @@ -576,7 +588,17 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants { synchronized (doc) { doc.saveIncremental(bos); - pdfObject.setSignedDocument(bos.toByteArray()); + byte[] outputDocument = bos.toByteArray(); + + /* + Check if resulting pdf is PDF-A conform + */ + //if (signatureProfileSettings.isPDFA()) { + // // TODO: run preflight parser + // runPDFAPreflight(outputDocument); + //} + + pdfObject.setSignedDocument(outputDocument); } } finally { @@ -607,6 +629,57 @@ public class PADESPDFBOXSigner implements IPdfSigner, IConfigurationConstants { } } + private void runPDFAPreflight(final byte[] signedDocument) throws PdfAsException { + runPDFAPreflight(new ByteArrayDataSource(signedDocument)); + } + + private void runPDFAPreflight(final DataSource signedDocument) throws PdfAsException { + PreflightDocument document = null; + ValidationResult result = null; + try { + PreflightParser parser = new PreflightParser(signedDocument); + parser.parse(Format.PDF_A1B); + parser.parse(); + document = parser.getPreflightDocument(); + document.validate(); + + document.close(); + result = document.getResult(); + + if(result.getErrorsList().size() > 0) { + logger.error("The following validation errors occured for PDF-A validation"); + } + + for (ValidationResult.ValidationError ve : result.getErrorsList()) + { + logger.error("\t" + ve.getErrorCode() + ": " + ve.getDetails()); + } + + if(!result.isValid()) { + throw new PdfAsException("The file is not a valid PDF-A document"); + } + + } catch (SyntaxValidationException e) { + logger.error("The file is syntactically invalid.", e); + throw new PdfAsException("Resulting PDF Document is syntactically invalid."); + } catch (ValidationException e) { + logger.error("The file is not a valid PDF-A document.", e); + throw new PdfAsException("The file is not a valid PDF-A document"); + } catch (IOException e) { + logger.error("An IOException (" + e.getMessage() + + ") occurred, while validating the PDF-A conformance", e); + throw new PdfAsException("Failed validating PDF Document IOException."); + } catch (RuntimeException e) { + logger.debug("An RuntimeException (" + e.getMessage() + + ") occurred, while validating the PDF-A conformance", e); + throw new PdfAsException("Failed validating PDF Document RuntimeException."); + } finally { + if (document != null) { + IOUtils.closeQuietly((Closeable)document); + } + } + } + @Override public PDFObject buildPDFObject(OperationStatus operationStatus) { return new PDFBOXObject(operationStatus); |