From 535a04fa05f739ec16dd81666e3b0f82dfbd442d Mon Sep 17 00:00:00 2001 From: tknall Date: Wed, 9 Jan 2013 15:41:29 +0000 Subject: pdf-as-lib maven project files moved to pdf-as-lib git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/pdf-as/trunk@926 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../verificators/BinaryVerificator_1_0_0.java | 396 +++++++++++++++++++++ 1 file changed, 396 insertions(+) create mode 100644 pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/BinaryVerificator_1_0_0.java (limited to 'pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/BinaryVerificator_1_0_0.java') diff --git a/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/BinaryVerificator_1_0_0.java b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/BinaryVerificator_1_0_0.java new file mode 100644 index 0000000..1ec1568 --- /dev/null +++ b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/framework/verificators/BinaryVerificator_1_0_0.java @@ -0,0 +1,396 @@ +/** + * Copyright 2006 by Know-Center, Graz, Austria + * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a + * joint initiative of the Federal Chancellery Austria and Graz University of + * Technology. + * + * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by + * the European Commission - subsequent versions of the EUPL (the "Licence"); + * You may not use this work except in compliance with the Licence. + * You may obtain a copy of the Licence at: + * http://www.osor.eu/eupl/ + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the Licence is distributed on an "AS IS" basis, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the Licence for the specific language governing permissions and + * limitations under the Licence. + * + * This product combines work with different licenses. See the "NOTICE" text + * file for details on the various modules and licenses. + * The "NOTICE" text file is part of the distribution. Any derivative works + * that you distribute must include a readable copy of the "NOTICE" text file. + * + * $Id: BinaryVerificator_1_0_0.java,v 1.3 2006/10/11 08:03:22 wprinz Exp $ + */ +package at.knowcenter.wag.egov.egiz.framework.verificators; + +import java.io.ByteArrayOutputStream; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import at.gv.egiz.pdfas.exceptions.ErrorCode; +import at.gv.egiz.pdfas.framework.input.PdfDataSource; +import at.gv.egiz.pdfas.impl.input.ByteArrayPdfDataSourceImpl; +import at.gv.egiz.pdfas.impl.vfilter.helper.VerificationFilterBinaryHelper; + +import org.apache.log4j.Logger; + +import at.knowcenter.wag.egov.egiz.PdfASID; +import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger; +import at.knowcenter.wag.egov.egiz.cfg.SettingsReader; +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.framework.VerificationFilter; +import at.knowcenter.wag.egov.egiz.framework.Verificator; +import at.knowcenter.wag.egov.egiz.pdf.BinaryBlockInfo; +import at.knowcenter.wag.egov.egiz.pdf.BinarySignature; +import at.knowcenter.wag.egov.egiz.pdf.BinarySignatureHolder; +import at.knowcenter.wag.egov.egiz.pdf.Placeholder; +import at.knowcenter.wag.egov.egiz.pdf.ReplaceInfo; +import at.knowcenter.wag.egov.egiz.pdf.StringInfo; +import at.knowcenter.wag.egov.egiz.sig.SignatureObject; +import at.knowcenter.wag.egov.egiz.sig.SignatureTypes; +import at.knowcenter.wag.exactparser.parsing.IndirectObjectReference; +import at.knowcenter.wag.exactparser.parsing.PDFUtils; +import at.knowcenter.wag.exactparser.parsing.results.ArrayParseResult; +import at.knowcenter.wag.exactparser.parsing.results.DictionaryParseResult; +import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult; +import at.knowcenter.wag.exactparser.parsing.results.IndirectObjectReferenceParseResult; +import at.knowcenter.wag.exactparser.parsing.results.LiteralStringParseResult; +import at.knowcenter.wag.exactparser.parsing.results.NameParseResult; +import at.knowcenter.wag.exactparser.parsing.results.NumberParseResult; +import at.knowcenter.wag.exactparser.parsing.results.ObjectParseResult; +import at.knowcenter.wag.exactparser.parsing.results.ParseResult; + +/** + * The BinaryVerificator parses the EGIT Dictionary and extracts the signature + * holder from it. + * + * @deprecated moved to the new framework + * + * @author wprinz + */ +public class BinaryVerificator_1_0_0 implements Verificator +{ + /** + * The Pdf-AS ID of this Verificator. + */ + public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_0_0); + + /** + * Use this to override the MY_ID field. + * + * @return Returns the Id of this Verificator. + */ + protected PdfASID getMyId() + { + return MY_ID; + } + + /** + * The /ODS key in the EGIZ Dict. + */ + public static final byte[] EGIZ_ODS_NAME = new byte[] { 'O', 'D', 'S' }; + + /** + * The /ID key in the EGIZ Dict. + */ + public static final byte[] EGIZ_KZ_NAME = VerificationFilter.EGIZ_KZ_NAME; + + /** + * The /ByteRange key in the EGIZ Dict. + */ + public static final byte[] EGIZ_BYTE_RANGE_NAME = new byte[] { 'B', 'y', 't', 'e', 'R', 'a', 'n', 'g', 'e' }; + + /** + * The /replaces key in the EGIZ Dict. + */ + public static final byte[] EGIZ_REPLACES_NAME = new byte[] { 'r', 'e', 'p', 'l', 'a', 'c', 'e', 's' }; + + /** + * The /encodings key in the EGIZ Dict. + */ + public static final byte[] EGIZ_ENCODINGS_NAME = new byte[] { 'e', 'n', 'c', 'o', 'd', 'i', 'n', 'g', 's' }; + + /** + * The /Cert key in the EGIZ Dict. + */ + public static final byte[] EGIZ_CERT_NAME = new byte[] { 'C', 'e', 'r', 't' }; + + /** + * The logger definition. + */ + private static final Logger logger_ = ConfigLogger.getLogger(BinaryVerificator_1_0_0.class); + + /** + * Default constructor. + */ + public BinaryVerificator_1_0_0() + { + // Default constructor. + } + + /** + * @see at.knowcenter.wag.egov.egiz.framework.Verificator#parseBlock(byte[], + * at.knowcenter.wag.exactparser.parsing.results.FooterParseResult, int) + */ + public List parseBlock(byte[] pdf, FooterParseResult block, int start_of_whole_block) throws PresentableException + { + int egiz_index = PDFUtils.indexOfName(pdf, block.tpr.dpr.names, VerificationFilter.EGIZ_DICT_NAME); + if (egiz_index < 0) + { + throw new PDFDocumentException(ErrorCode.COULDNT_VERIFY, "egiz_index = " + egiz_index); + } + + IndirectObjectReferenceParseResult egiz_dict_iorpr = (IndirectObjectReferenceParseResult) block.tpr.dpr.values.get(egiz_index); + + IndirectObjectReference ior = egiz_dict_iorpr.ior; + + final int egiz_dict_offset = PDFUtils.getObjectOffsetFromXRefByIndirectObjectReference(block.xpr, ior); + + ObjectParseResult obj = PDFUtils.parseObject(pdf, egiz_dict_offset); + DictionaryParseResult egiz_dict = (DictionaryParseResult) obj.object; + + NumberParseResult ods_npr = (NumberParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_ODS_NAME); + + ArrayParseResult kz_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_KZ_NAME); + PdfASID kz = null; +// String kz_string = VerificationFilter.restoreKZ(pdf, kz_apr); + String kz_string = VerificationFilterBinaryHelper.restoreKZ(pdf, kz_apr); + kz = new PdfASID(kz_string); + if (!kz_string.equals(getMyId().toString())) + { + logger_.warn("Warning: Kennzeichnung not recognized:" + kz_string); + } + + ArrayParseResult byte_ranges_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_BYTE_RANGE_NAME); + + ArrayParseResult replaces_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_REPLACES_NAME); + + ArrayParseResult encodings_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_ENCODINGS_NAME); + + ArrayParseResult cert_apr = (ArrayParseResult) getValueOfKey(pdf, egiz_dict, EGIZ_CERT_NAME); + byte[] cert = null; + if (cert_apr != null && !cert_apr.elements.isEmpty()) + { + LiteralStringParseResult lspr = (LiteralStringParseResult) cert_apr.elements.get(0); + int str_length = lspr.content_end_index - lspr.content_start_index; + byte[] encoded = new byte[str_length]; + System.arraycopy(pdf, lspr.content_start_index, encoded, 0, encoded.length); + + cert = Placeholder.unescapePDFString(encoded); + } + + int num_byte_ranges = byte_ranges_apr.elements.size() / 2; + List byte_ranges = new ArrayList(); + for (int i = 0; i < num_byte_ranges; i++) + { + NumberParseResult start_npr = (NumberParseResult) byte_ranges_apr.elements.get(2 * i); + NumberParseResult length_npr = (NumberParseResult) byte_ranges_apr.elements.get(2 * i + 1); + + StringInfo si = new StringInfo(); + si.string_start = start_npr.number; + si.string_length = length_npr.number; + byte_ranges.add(si); + } + + StringInfo sis[] = new StringInfo[num_byte_ranges - 1]; + for (int i = 0; i < num_byte_ranges - 1; i++) + { + StringInfo prev = (StringInfo) byte_ranges.get(i); + StringInfo next = (StringInfo) byte_ranges.get(i + 1); + + StringInfo hole = new StringInfo(); + hole.string_start = prev.string_start + prev.string_length; + hole.string_length = next.string_start - hole.string_start; + + sis[i] = hole; + } + + int n = replaces_apr.elements.size(); + byte[][] brevs = new byte[n][]; + for (int i = 0; i < n; i++) + { + NameParseResult lspr = (NameParseResult) replaces_apr.elements.get(i); + + byte[] brev = new byte[3]; + System.arraycopy(pdf, lspr.name_start_index, brev, 0, brev.length); + + brevs[i] = brev; // SignatureTypes.convertBrevToType(brev); + } + + n = encodings_apr.elements.size(); + byte[][] encodings = new byte[n][]; + for (int i = 0; i < n; i++) + { + NameParseResult lspr = (NameParseResult) encodings_apr.elements.get(i); + + byte[] enc = new byte[3]; + System.arraycopy(pdf, lspr.name_start_index, enc, 0, enc.length); + encodings[i] = enc; + } + + BinaryBlockInfo bbi = new BinaryBlockInfo(); + bbi.replaces = BinarySignature.reconstructReplaces(pdf, brevs, sis, encodings); + bbi.signed_size = ods_npr.number; + + // BinaryBlockInfo bbi = BinarySignature.retrieveEgizDictInformation(pdf, + // ior.object_number, ior.generation_number, egiz_dict_offset); + + // byte[] original_pdf = BinarySignature.restoreEgizDictInformation(pdf, + // bbi); + + byte[] signed_pdf = BinarySignature.prepareDataToSign(pdf, byte_ranges); + // String signed_text = + // BinarySignature.retrieveSignableTextFromData(signed_pdf, + // signed_pdf.length); // has been moved into the BinarySignatureHolder + + SignatureObject signature_object = new SignatureObject(); + String default_type = SettingsReader.getInstance().getValueFromKey(SignatureTypes.DEFAULT_TYPE); + signature_object.setSigType(default_type); + signature_object.initByType(); + + signature_object.setKZ(kz); + + if (cert != null) + { + try + { + // ByteArrayInputStream bais = new ByteArrayInputStream(cert); + // CertificateFactory cf = CertificateFactory.getInstance("X.509"); + // X509Certificate certificate = (X509Certificate) + // cf.generateCertificate(bais); + + // trim zero bytes. - the base 64 cert must not have zero bytes. + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + for (int i = 0; i < cert.length; i++) + { + if (cert[i] != 0) + { + baos.write(cert[i]); + } + } + byte[] b64 = baos.toByteArray(); + + signature_object.storeNewCertificateInLocalStore(b64); + } + catch (Exception e) + { + logger_.error(e.getMessage(), e); + } + + } + + Iterator rit = bbi.replaces.iterator(); + while (rit.hasNext()) + { + ReplaceInfo ri = (ReplaceInfo) rit.next(); + + String type = SignatureTypes.convertBrevToType(ri.brev); + + // signature_object.setSigValue(ri.type, ri.value); + if (type.equals(SignatureTypes.SIG_DATE)) + { + signature_object.setSignationDate(ri.value); + continue; + } + + if (type.equals(SignatureTypes.SIG_ISSUER)) + { + signature_object.setSignationIssuer(ri.value); + continue; + } + + if (type.equals(SignatureTypes.SIG_VALUE)) + { + signature_object.setSignationValue(ri.value); + continue; + } + + if (type.equals(SignatureTypes.SIG_NUMBER)) + { + signature_object.setSignationSerialNumber(ri.value); + continue; + } + + if (type.equals(SignatureTypes.SIG_ID)) + { + signature_object.setSignationIDs(ri.value); + continue; + } + } + + // FIXME This blows up the session !!!!! + PdfDataSource ds = new ByteArrayPdfDataSourceImpl(signed_pdf, signed_pdf.length); + BinarySignatureHolder signature_holder = new BinarySignatureHolder(ds, signature_object); + + List holders = new ArrayList(); + holders.add(signature_holder); + return holders; + } + + /** + * Retrieves the value of the key from the dictionary. + * + * @param pdf + * The PDF. + * @param egiz_dict + * The dictionary. + * @param name + * The name of the key. + * @return Returns the value of the key. An exception is thrown if the key + * doesn't exist. + * @throws PDFDocumentException + * Thrown, if the key doesn't exist in the dictionary. + */ + protected ParseResult getRequiredValueOfKey(byte[] pdf, DictionaryParseResult egiz_dict, byte[] name) throws PDFDocumentException + { + final int index = PDFUtils.indexOfName(pdf, egiz_dict.names, name); + checkIndex(index); + ParseResult value = (ParseResult) egiz_dict.values.get(index); + return value; + } + + /** + * Throws an excaption, if the index is lower than 0. + * + * @param name_index + * The index. + * @throws PDFDocumentException + * Thrown, if the index is lower than 0. + */ + protected void checkIndex(int name_index) throws PDFDocumentException + { + if (name_index < 0) + { + throw new PDFDocumentException(ErrorCode.COULDNT_VERIFY, "The name wasn't found in the egiz dict."); + } + } + + /** + * Retrieves the value of the key from the dictionary. + * + * @param pdf + * The PDF. + * @param egiz_dict + * The dictionary. + * @param name + * The name of the key. + * @return Returns the key's value, or null if the dictionary didn't contain + * that key. + */ + protected ParseResult getValueOfKey(byte[] pdf, DictionaryParseResult egiz_dict, byte[] name) + { + final int index = PDFUtils.indexOfName(pdf, egiz_dict.names, name); + if (index < 0) + { + return null; + } + ParseResult value = (ParseResult) egiz_dict.values.get(index); + return value; + } + +} -- cgit v1.2.3