diff options
Diffstat (limited to 'pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java')
| -rw-r--r-- | pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java | 139 |
1 files changed, 119 insertions, 20 deletions
diff --git a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java index 5bda572b..a8cee107 100644 --- a/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java +++ b/pdf-as-lib/src/main/java/at/gv/egiz/pdfas/lib/impl/PdfAsImpl.java @@ -1,12 +1,24 @@ package at.gv.egiz.pdfas.lib.impl; +import iaik.cms.CMSException; +import iaik.cms.CMSParsingException; +import iaik.cms.SignedData; +import iaik.cms.SignerInfo; import iaik.x509.X509Certificate; import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; import java.io.File; +import java.io.IOException; import java.io.OutputStream; +import java.security.SignatureException; import java.util.List; +import org.apache.pdfbox.cos.COSArray; +import org.apache.pdfbox.cos.COSBase; +import org.apache.pdfbox.cos.COSDictionary; +import org.apache.pdfbox.cos.COSName; +import org.apache.pdfbox.cos.COSString; import org.apache.pdfbox.pdmodel.PDDocument; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @@ -17,6 +29,7 @@ import at.gv.egiz.pdfas.common.exceptions.PdfAsSettingsException; import at.gv.egiz.pdfas.common.settings.ISettings; import at.gv.egiz.pdfas.common.settings.Settings; import at.gv.egiz.pdfas.common.settings.SignatureProfileSettings; +import at.gv.egiz.pdfas.common.utils.StringUtils; import at.gv.egiz.pdfas.lib.api.Configuration; import at.gv.egiz.pdfas.lib.api.IConfigurationConstants; import at.gv.egiz.pdfas.lib.api.PdfAs; @@ -36,25 +49,28 @@ import at.gv.egiz.pdfas.lib.impl.stamping.StamperFactory; import at.gv.egiz.pdfas.lib.impl.stamping.TableFactory; import at.gv.egiz.pdfas.lib.impl.status.OperationStatus; import at.gv.egiz.pdfas.lib.impl.status.RequestedSignature; +import at.gv.egiz.pdfas.lib.impl.verify.IVerifyFilter; +import at.gv.egiz.pdfas.lib.impl.verify.VerifierDispatcher; import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction; import at.knowcenter.wag.egov.egiz.pdf.TablePos; import at.knowcenter.wag.egov.egiz.table.Table; public class PdfAsImpl implements PdfAs, IConfigurationConstants { - private static final Logger logger = LoggerFactory.getLogger(PdfAsImpl.class); - + private static final Logger logger = LoggerFactory + .getLogger(PdfAsImpl.class); + private Settings settings; - + public PdfAsImpl(File cfgFile) { logger.info("Initializing PDF-AS with config: " + cfgFile.getPath()); this.settings = new Settings(cfgFile); } - + public SignResult sign(SignParameter parameter) throws PdfAsException { logger.trace("sign started"); - + // TODO: verify signParameter try { @@ -62,7 +78,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { if (!(parameter.getConfiguration() instanceof ISettings)) { throw new PdfAsSettingsException("Invalid settings object!"); } - + ISettings settings = (ISettings) parameter.getConfiguration(); OperationStatus status = new OperationStatus(settings, parameter); PlaceholderConfiguration placeholderConfiguration = status @@ -76,7 +92,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { .getSignatureProfileID(); logger.info("Selected signature Profile: " + signatureProfileID); - + SignatureProfileConfiguration signatureProfileConfiguration = status .getSignatureProfileConfiguration(signatureProfileID); @@ -88,7 +104,7 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { if (placeholderConfiguration.isGlobalPlaceholderEnabled()) { // TODO: Do placeholder search } - + if (requestedSignature.isVisual()) { logger.info("Creating visual siganture block"); // ================================================================ @@ -98,9 +114,11 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { .createProfile(signatureProfileID, settings); Table main = TableFactory.createSigTable( - signatureProfileSettings, MAIN, settings, requestedSignature); + signatureProfileSettings, MAIN, settings, + requestedSignature); - IPDFStamper stamper = StamperFactory.createDefaultStamper(settings); + IPDFStamper stamper = StamperFactory + .createDefaultStamper(settings); IPDFVisualObject visualObject = stamper.createVisualPDFObject( status.getPdfObject(), main); @@ -149,19 +167,22 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { // TODO: Create signature IPdfSigner signer = PdfSignerFactory.createPdfSigner(); - signer.signPDF(status.getPdfObject(), requestedSignature, status.getSignParamter().getPlainSigner()); - - //status.getPdfObject().setSignedDocument(status.getPdfObject().getStampedDocument()); - + signer.signPDF(status.getPdfObject(), requestedSignature, status + .getSignParamter().getPlainSigner()); + + // status.getPdfObject().setSignedDocument(status.getPdfObject().getStampedDocument()); + // ================================================================ // Create SignResult - SignResultImpl result = new SignResultImpl(status.getSignParamter().getOutput()); - OutputStream outputStream = result.getOutputDocument().createOutputStream(); - + SignResultImpl result = new SignResultImpl(status.getSignParamter() + .getOutput()); + OutputStream outputStream = result.getOutputDocument() + .createOutputStream(); + outputStream.write(status.getPdfObject().getSignedDocument()); - + outputStream.close(); - + return result; } catch (Throwable e) { logger.error("sign failed " + e.getMessage(), e); @@ -172,7 +193,85 @@ public class PdfAsImpl implements PdfAs, IConfigurationConstants { } public List<VerifyResult> verify(VerifyParameter parameter) { - // TODO Auto-generated method stub + try { + ISettings settings = (ISettings) parameter.getConfiguration(); + VerifierDispatcher verifier = new VerifierDispatcher(settings); + PDDocument doc = PDDocument.load(new ByteArrayInputStream(parameter + .getDataSource().getByteData())); + + COSDictionary trailer = doc.getDocument().getTrailer(); + COSDictionary root = (COSDictionary) trailer + .getDictionaryObject(COSName.ROOT); + COSDictionary acroForm = (COSDictionary) root + .getDictionaryObject(COSName.ACRO_FORM); + COSArray fields = (COSArray) acroForm + .getDictionaryObject(COSName.FIELDS); + for (int i = 0; i < fields.size(); i++) { + COSDictionary field = (COSDictionary) fields.getObject(i); + String type = field.getNameAsString("FT"); + if ("Sig".equals(type)) { + logger.trace("Found Signature: "); + COSBase base = field.getDictionaryObject("V"); + COSDictionary dict = (COSDictionary) base; + + logger.debug("Signer: " + + dict.getNameAsString("Name")); + logger.debug("SubFilter: " + + dict.getNameAsString("SubFilter")); + logger.debug("Filter: " + + dict.getNameAsString("Filter")); + logger.debug("Modified: " + dict.getNameAsString("M")); + COSArray byteRange = (COSArray) dict + .getDictionaryObject("ByteRange"); + + + StringBuilder sb = new StringBuilder(); + int[] bytes = new int[byteRange.size()]; + for (int j = 0; j < byteRange.size(); j++) { + bytes[j] = byteRange.getInt(j); + sb.append(" " + bytes[j]); + } + + logger.debug("ByteRange" + sb.toString()); + + COSString content = (COSString) dict + .getDictionaryObject("Contents"); + /*logger.trace("Content: " + + StringUtils.bytesToHexString(content.getBytes()));*/ + + ByteArrayOutputStream contentData = new ByteArrayOutputStream(); + for (int j = 0; j < bytes.length; j = j + 2) { + int offset = bytes[j]; + int length = bytes[j + 1]; + contentData.write(parameter.getDataSource() + .getByteData(), offset, length); + } + contentData.close(); + + IVerifyFilter verifyFilter = + verifier.getVerifier(dict.getNameAsString("Filter"), dict.getNameAsString("SubFilter")); + + verifyFilter.verify(contentData.toByteArray(), content.getBytes()); + + /* + * Iterator<Map.Entry<COSName, COSBase>> iterator = + * dict.entrySet().iterator(); + * + * while(iterator.hasNext()) { Map.Entry<COSName, COSBase> + * entry = iterator.next(); System.out.println("Key: " + * +entry.getKey().toString()); + * + * } + */ + + } + } + } catch (IOException e) { + e.printStackTrace(); + } catch (PdfAsException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } return null; } |