Package eu.europa.esig.dss.pdf

Class AbstractPDFSignatureService

java.lang.Object

eu.europa.esig.dss.pdf.AbstractPDFSignatureService

All Implemented Interfaces:

PDFSignatureService, PDFTimestampService

Direct Known Subclasses:

ITextPDFSignatureService, PdfBoxSignatureService

public abstract class AbstractPDFSignatureService
extends Object
implements PDFSignatureService, PDFTimestampService

Field Summary

Fields

Modifier and Type	Field	Description
protected SignatureDrawerFactory	signatureDrawerFactory
protected boolean	timestamp

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractPDFSignatureService(boolean timestamp, SignatureDrawerFactory signatureDrawerFactory)	Constructor for the PDFSignatureService

Method Summary

Modifier and Type	Method	Description
protected Map<String,Long>	buildKnownObjects(List<DSSDictionaryCallback> callbacks)	This method builds a Map of known Objects (extracted from previous DSS Dictionaries).
protected String	getFilter(PAdESSignatureParameters parameters)
protected SignatureImageParameters	getImageParameters(PAdESSignatureParameters parameters)
protected byte[]	getOriginalBytes(int[] byteRange, byte[] signedContent)
protected String	getSignatureName(PAdESSignatureParameters parameters)
protected abstract List<PdfSignatureOrDocTimestampInfo>	getSignatures(CertificatePool validationCertPool, DSSDocument document)
protected byte[]	getSignatureValue(DSSDocument dssDocument, int[] byteRange)
protected byte[]	getSignedContent(DSSDocument dssDocument, int[] byteRange)
protected String	getSubFilter(PAdESSignatureParameters parameters)
protected String	getTokenDigest(Token token)
protected String	getType()
protected boolean	isContentValueEqualsByteRangeExtraction(DSSDocument document, int[] byteRange, byte[] cms, String signatureName)
protected void	linkSignatures(List<PdfSignatureOrDocTimestampInfo> signatures)	This method links previous signatures to the new one.
DSSDocument	timestamp(DSSDocument document, PAdESSignatureParameters parameters, TSPSource tspSource)
protected void	validateByteRange(int[] byteRange)
void	validateSignatures(CertificatePool validationCertPool, DSSDocument document, SignatureValidationCallback callback)	Retrieves and triggers validation of the signatures from a PDF document

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface eu.europa.esig.dss.pdf.PDFSignatureService

addDssDictionary, addNewSignatureField, digest, getAvailableSignatureFields, sign

Field Detail

timestamp

protected final boolean timestamp

signatureDrawerFactory

protected final SignatureDrawerFactory signatureDrawerFactory

Constructor Detail

AbstractPDFSignatureService

protected AbstractPDFSignatureService(boolean timestamp,
                                      SignatureDrawerFactory signatureDrawerFactory)

Constructor for the PDFSignatureService

Parameters:

timestamp - if true, the instance is used to generate DocumentTypestamp if false, it is used to generate a signature layer

signatureDrawerFactory - the factory of SignatureDrawer

Method Detail

getType

protected String getType()

getFilter

protected String getFilter(PAdESSignatureParameters parameters)

getSubFilter

protected String getSubFilter(PAdESSignatureParameters parameters)

getImageParameters

protected SignatureImageParameters getImageParameters(PAdESSignatureParameters parameters)

getSignatureName

protected String getSignatureName(PAdESSignatureParameters parameters)

timestamp

public DSSDocument timestamp(DSSDocument document,
                             PAdESSignatureParameters parameters,
                             TSPSource tspSource)

Specified by:

timestamp in interface PDFTimestampService

validateSignatures

public void validateSignatures(CertificatePool validationCertPool,
                               DSSDocument document,
                               SignatureValidationCallback callback)

Description copied from interface: PDFSignatureService

Retrieves and triggers validation of the signatures from a PDF document

Specified by:

validateSignatures in interface PDFSignatureService

Parameters:

validationCertPool - the certificate pool

document - the document to be validated

callback - callback for signature validation

getSignatures

protected abstract List<PdfSignatureOrDocTimestampInfo> getSignatures(CertificatePool validationCertPool,
                                                                      DSSDocument document)

linkSignatures

protected void linkSignatures(List<PdfSignatureOrDocTimestampInfo> signatures)

This method links previous signatures to the new one. This is useful to get revision number and to know if a TSP is over the DSS dictionary

getSignedContent

protected byte[] getSignedContent(DSSDocument dssDocument,
                                  int[] byteRange)
                           throws IOException

Throws:

IOException

isContentValueEqualsByteRangeExtraction

protected boolean isContentValueEqualsByteRangeExtraction(DSSDocument document,
                                                          int[] byteRange,
                                                          byte[] cms,
                                                          String signatureName)

getSignatureValue

protected byte[] getSignatureValue(DSSDocument dssDocument,
                                   int[] byteRange)
                            throws IOException

Throws:

IOException

getOriginalBytes

protected byte[] getOriginalBytes(int[] byteRange,
                                  byte[] signedContent)

validateByteRange

protected void validateByteRange(int[] byteRange)

buildKnownObjects

protected Map<String,Long> buildKnownObjects(List<DSSDictionaryCallback> callbacks)

This method builds a Map of known Objects (extracted from previous DSS Dictionaries). This map will be used to avoid duplicate the same objects between layers.

Parameters:

callbacks -

Returns:

getTokenDigest

protected String getTokenDigest(Token token)