From 3d982813b34f6f230baf4a467cdc37ec92a77595 Mon Sep 17 00:00:00 2001 From: netconomy Date: Fri, 17 Aug 2007 06:10:56 +0000 Subject: Performance git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@167 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../signator/binary/BinarySignatorInformation.java | 51 ++++ .../impl/signator/binary/BinarySignator_1_0_0.java | 326 +++++++++++++++++++++ .../impl/signator/binary/BinarySignator_1_1_0.java | 69 +++++ 3 files changed, 446 insertions(+) create mode 100644 src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java create mode 100644 src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java create mode 100644 src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java (limited to 'src/main/java/at/gv/egiz/pdfas/impl/signator/binary') diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java new file mode 100644 index 0000000..916abf4 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java @@ -0,0 +1,51 @@ +/** + * + */ +package at.gv.egiz.pdfas.impl.signator.binary; + +import java.util.List; + +import at.knowcenter.wag.egov.egiz.sig.SignatureData; +import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject; +import at.gv.egiz.pdfas.framework.input.PdfDataSource; +import at.gv.egiz.pdfas.framework.signator.SignatorInformation; + +/** + * @author wprinz + * + */ +public class BinarySignatorInformation implements SignatorInformation +{ + protected PdfDataSource originalDocument = null; + + protected byte [] incrementalUpdateBlock = null; + + protected SignatureData signatureData = null; + + protected List replaces = null; + + protected int cert_start = -1; + protected int cert_length = -1; + + protected int enc_start = -1; + protected int enc_length = -1; + + protected SignSignatureObject signSignatureObject = null; + + /** + * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#getSignatureData() + */ + public SignatureData getSignatureData() + { + return this.signatureData; + } + + /** + * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#setSignSignatureObject(at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject) + */ + public void setSignSignatureObject(SignSignatureObject signSignatureObject) + { + this.signSignatureObject = signSignatureObject; + } + +} diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java new file mode 100644 index 0000000..6c6ba29 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java @@ -0,0 +1,326 @@ +/** + * Copyright (c) 2006 by Know-Center, Graz, Austria + * + * This software is the confidential and proprietary information of Know-Center, + * Graz, Austria. You shall not disclose such Confidential Information and shall + * use it only in accordance with the terms of the license agreement you entered + * into with Know-Center. + * + * KNOW-CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF + * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE + * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR + * NON-INFRINGEMENT. KNOW-CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY + * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS + * DERIVATIVES. + * + * $Id: BinarySignator_1_0_0.java,v 1.1 2006/08/25 17:07:35 wprinz Exp $ + */ +package at.gv.egiz.pdfas.impl.signator.binary; + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.io.UnsupportedEncodingException; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import at.gv.egiz.pdfas.exceptions.ErrorCode; +import at.gv.egiz.pdfas.exceptions.framework.SignatorException; +import at.gv.egiz.pdfas.framework.input.DataSource; +import at.gv.egiz.pdfas.framework.input.PdfDataSource; +import at.gv.egiz.pdfas.framework.output.DataSink; +import at.gv.egiz.pdfas.framework.signator.Signator; +import at.gv.egiz.pdfas.framework.signator.SignatorInformation; +import at.gv.egiz.pdfas.impl.input.CompoundPdfDataSourceImpl; +import at.gv.egiz.pdfas.impl.signator.IncrementalUpdateHelper; +import at.knowcenter.wag.egov.egiz.PdfAS; +import at.knowcenter.wag.egov.egiz.PdfASID; +import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException; +import at.knowcenter.wag.egov.egiz.exceptions.PresentableException; +import at.knowcenter.wag.egov.egiz.framework.SignatorFactory; +import at.knowcenter.wag.egov.egiz.pdf.BinarySignature; +import at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation; +import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction; +import at.knowcenter.wag.egov.egiz.pdf.ReplaceInfo; +import at.knowcenter.wag.egov.egiz.pdf.StringInfo; +import at.knowcenter.wag.egov.egiz.pdf.TablePos; +import at.knowcenter.wag.egov.egiz.sig.SignatureData; +import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl; +import at.knowcenter.wag.egov.egiz.sig.SignatureFieldDefinition; +import at.knowcenter.wag.egov.egiz.sig.SignatureObject; +import at.knowcenter.wag.egov.egiz.sig.SignatureTypes; +import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObjectHelper; +import at.knowcenter.wag.exactparser.ByteArrayUtils; + +import com.lowagie.text.pdf.PdfPTable; + +/** + * Signs the document binary. + * + *

+ * In prepareSign, an Incremental Update is created that contains the Signature + * block and the egiz dictionary. For formatting the layout, variable values are + * filled with placeholders. After the layout has been fixed, all variable + * fields (all holes in the byte ranges) are replaced with 0. This document is + * then base64 encoded and signed. + *

+ *

+ * In finishSign, the variable fields (values, /Cert) are replaced with the + * values according to the encoding. + *

+ * + * @author wprinz + */ +public class BinarySignator_1_0_0 implements Signator +{ + /** + * The Pdf-AS ID of this Signator. + */ + public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_0_0); + + /** + * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId() + */ + public PdfASID getMyId() + { + return MY_ID; + } + + /** + * Default constructor. + */ + public BinarySignator_1_0_0() + { + // Default constructor. + } + + /** + * @see at.gv.egiz.pdfas.framework.signator.Signator#prepareSign(at.gv.egiz.pdfas.framework.input.PdfDataSource, + * java.lang.String, at.knowcenter.wag.egov.egiz.pdf.TablePos, boolean) + */ + public SignatorInformation prepareSign(PdfDataSource pdfDataSource, String profile, TablePos pos, boolean has_SIG_ID) throws SignatorException + { + try + { + SignatureObject signature_object = PdfAS.createSignatureObjectFromType(profile); + signature_object.fillValues((char) BinarySignature.LAYOUT_PLACEHOLDER, has_SIG_ID); + + signature_object.setKZ(getMyId()); + + PdfPTable pdf_table = PdfAS.createPdfPTableFromSignatureObject(signature_object); + + PositioningInstruction pi = PdfAS.determineTablePositioning(pos, profile, pdfDataSource, pdf_table); + + List all_field_definitions = signature_object.getSignatureTypeDefinition().getFieldDefinitions(); + List variable_field_definitions = new ArrayList(); + for (int i = 0; i < all_field_definitions.size(); i++) + { + SignatureFieldDefinition sfd = (SignatureFieldDefinition) all_field_definitions.get(i); + if (sfd.placeholder_length > 0) + { + if (sfd.field_name.equals(SignatureTypes.SIG_ID) && has_SIG_ID == false) + { + continue; + } + variable_field_definitions.add(sfd); + } + } + + IncrementalUpdateInformation iui = IncrementalUpdateHelper.writeIncrementalUpdate(pdfDataSource, pdf_table, pi, variable_field_definitions, all_field_definitions); + + String temp_string = iui.temp_ir_number + " " + iui.temp_ir_generation + " obj"; //$NON-NLS-1$//$NON-NLS-2$ + byte[] temp_bytes = temp_string.getBytes("US-ASCII"); //$NON-NLS-1$ + int temp_start = ByteArrayUtils.lastIndexOf(iui.signed_pdf, temp_bytes); + byte[] stream_bytes = new byte[] { '>', '>', 's', 't', 'r', 'e', 'a', 'm', 0x0A }; + int stream_start = ByteArrayUtils.indexOf(iui.signed_pdf, temp_start, stream_bytes); + iui.content_stream_start = stream_start + stream_bytes.length; + + // update the stream indices + Iterator it = iui.replaces.iterator(); + while (it.hasNext()) + { + ReplaceInfo ri = (ReplaceInfo) it.next(); + + Iterator sit = ri.replaces.iterator(); + while (sit.hasNext()) + { + StringInfo si = (StringInfo) sit.next(); + si.string_start += iui.content_stream_start; + } + } + // update KZ list indices: + it = iui.kz_list.iterator(); + while (it.hasNext()) + { + StringInfo si = (StringInfo) it.next(); + si.string_start += iui.content_stream_start; + } + + BinarySignature.markByteRanges(iui); + + // byte [] old_signed_pdf = iui.signed_pdf; + iui.signed_pdf = BinarySignature.prepareDataToSign(iui.signed_pdf, iui.byte_ranges); + + BinarySignatorInformation bsi = compressIUI(iui); + return bsi; + + } + catch (UnsupportedEncodingException e) + { + throw new SignatorException(201, e); + } + catch (PDFDocumentException e) + { + throw new SignatorException(e.getErrorCode(), e); + } + catch (PresentableException e) + { + throw new SignatorException(201, e); + } + } + + /** + * @see at.gv.egiz.pdfas.framework.signator.Signator#finishSign(at.gv.egiz.pdfas.framework.signator.SignatorInformation, + * at.gv.egiz.pdfas.framework.output.DataSink) + */ + public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException + { + try + { + IncrementalUpdateInformation iui = uncompressIUI((BinarySignatorInformation) signatorInformation); + + // PERF: need to keep the whole pdf in mem for processing + + // PdfAS.prefixID(iui.signed_signature_object, PdfAS.BINARY_ID); + fillReplacesWithValues(iui); + + BinarySignature.replaceCertificate(iui); + BinarySignature.replacePlaceholders(iui); + + OutputStream os = dataSink.createOutputStream(PdfAS.PDF_MIME_TYPE); + os.write(iui.signed_pdf); + os.close(); + + //SignResult sign_result = new SignResult(PdfAS.PDF_MIME_TYPE, iui.signed_pdf); + //return sign_result; + } + catch (PDFDocumentException e) + { + throw new SignatorException(e.getErrorCode(), e); + } + catch (IOException e) + { + throw new SignatorException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e); + } + } + + /** + * Reads the signature values from the signed signature object and fills the + * corresponding value in the Replaces array. + * + * @param iui + * The IncrementalUpdateInformation. + */ + protected void fillReplacesWithValues(IncrementalUpdateInformation iui) + { + Iterator it = iui.replaces.iterator(); + while (it.hasNext()) + { + ReplaceInfo ri = (ReplaceInfo) it.next(); + + ri.value = SignSignatureObjectHelper.retrieveStringValueFromSignatureObject(iui.signed_signature_object, ri.sfd.field_name); + } + } + + /** + * Forms the SignatureData to be used for signing. + * + * @param iui + * The IncrementalUpdateInformation. + * @return Returns the SignatureData to be used for signing. + */ + protected SignatureData formSignatureData(IncrementalUpdateInformation iui) + { + // String document_text = + // BinarySignature.retrieveSignableTextFromData(iui.signed_pdf, + // iui.signed_pdf.length); // signed_pdf.length); + // + // byte[] data; + // try + // { + // data = document_text.getBytes("UTF-8"); //$NON-NLS-1$ + // } + // catch (UnsupportedEncodingException e) + // { + // throw new RuntimeException("Very strange: UTF-8 character encoding not + // supported.", e); //$NON-NLS-1$ + // } + DataSource ds = new CompoundPdfDataSourceImpl(iui.original_document, iui.sign_iui_block); + SignatureData signature_data = new SignatureDataImpl(ds, PdfAS.PDF_MIME_TYPE); + + return signature_data; + } + + protected BinarySignatorInformation compressIUI(IncrementalUpdateInformation iui) + { + iui.sign_iui_block = new byte[iui.signed_pdf.length - iui.original_document.getLength()]; + System.arraycopy(iui.signed_pdf, iui.original_document.getLength(), iui.sign_iui_block, 0, iui.sign_iui_block.length); + + iui.signature_data = formSignatureData(iui); + + // remove the signed pdf from memory + iui.signed_pdf = null; + + BinarySignatorInformation bsi = new BinarySignatorInformation(); + bsi.originalDocument = iui.original_document; + bsi.incrementalUpdateBlock = iui.sign_iui_block; + bsi.signatureData = iui.signature_data; + bsi.replaces = iui.replaces; + bsi.cert_start = iui.cert_start; + bsi.cert_length = iui.cert_length; + bsi.enc_start = iui.enc_start; + bsi.enc_length = iui.enc_length; + + return bsi; + } + + protected IncrementalUpdateInformation uncompressIUI(BinarySignatorInformation bsi) + { + IncrementalUpdateInformation iui = new IncrementalUpdateInformation(); + + iui.original_document = bsi.originalDocument; + iui.sign_iui_block = bsi.incrementalUpdateBlock; + iui.signature_data = bsi.signatureData; + iui.replaces = bsi.replaces; + iui.cert_start = bsi.cert_start; + iui.cert_length = bsi.cert_length; + iui.enc_start = bsi.enc_start; + iui.enc_length = bsi.enc_length; + + iui.signed_signature_object = bsi.signSignatureObject; + + restoreSignedPdf(iui); + + return iui; + } + + protected void restoreSignedPdf(IncrementalUpdateInformation iui) + { + iui.signed_pdf = new byte[iui.original_document.getLength() + iui.sign_iui_block.length]; + + try + { + InputStream is = iui.original_document.createInputStream(); + is.read(iui.signed_pdf, 0, iui.original_document.getLength()); + is.close(); + } + catch (IOException e) + { + throw new RuntimeException(e); + } + + System.arraycopy(iui.sign_iui_block, 0, iui.signed_pdf, iui.original_document.getLength(), iui.sign_iui_block.length); + } + +} diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java new file mode 100644 index 0000000..7ab62fc --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java @@ -0,0 +1,69 @@ +/** + * Copyright (c) 2006 by Know-Center, Graz, Austria + * + * This software is the confidential and proprietary information of Know-Center, + * Graz, Austria. You shall not disclose such Confidential Information and shall + * use it only in accordance with the terms of the license agreement you entered + * into with Know-Center. + * + * KNOW-CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF + * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE + * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR + * NON-INFRINGEMENT. KNOW-CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY + * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS + * DERIVATIVES. + * + * $Id: BinarySignator_1_0_0.java,v 1.1 2006/08/25 17:07:35 wprinz Exp $ + */ +package at.gv.egiz.pdfas.impl.signator.binary; + +import at.gv.egiz.pdfas.impl.input.CompoundPdfDataSourceImpl; +import at.gv.egiz.pdfas.framework.input.DataSource; +import at.knowcenter.wag.egov.egiz.PdfAS; +import at.knowcenter.wag.egov.egiz.PdfASID; +import at.knowcenter.wag.egov.egiz.framework.SignatorFactory; +import at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation; +import at.knowcenter.wag.egov.egiz.sig.SignatureData; +import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl; + +/** + * Signs the document binary. + * + *

+ * This just differs from version 1.0.0 in the fact that the signature data is + * the actual binary PDF instead of a Base64 encoding. + *

+ * + * @see BinarySignator_1_0_0 + * + * @author wprinz + */ +public class BinarySignator_1_1_0 extends BinarySignator_1_0_0 +{ + /** + * The Pdf-AS ID of this Signator. + */ + public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_1_0); + + /** + * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId() + */ + public PdfASID getMyId() + { + return MY_ID; + } + + /** + * Overrides the SignatureData generation of the BinarySignator 1.0.0 so that + * the SignatureData is the actual binary PDF instead of a Base64 encoding. + * + * @see at.knowcenter.wag.egov.egiz.framework.signators.BinarySignator_1_0_0#formSignatureData(at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation) + */ + protected SignatureData formSignatureData(IncrementalUpdateInformation iui) + { + DataSource ds = new CompoundPdfDataSourceImpl(iui.original_document, iui.sign_iui_block); + SignatureData signature_data = new SignatureDataImpl(ds, PdfAS.PDF_MIME_TYPE); + + return signature_data; + } +} -- cgit v1.2.3