From ae4c2b3307544c847c044010092f2fdaa098f026 Mon Sep 17 00:00:00 2001 From: wprinz Date: Fri, 30 May 2008 10:41:33 +0000 Subject: CR Unsichtbare Felder git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@274 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../wag/egov/egiz/pdf/BinarySignature.java | 594 +++++++++++++-------- .../egiz/pdf/IncrementalUpdateInformation.java | 9 + 2 files changed, 382 insertions(+), 221 deletions(-) (limited to 'src/main') diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java index 44a13a4..02b1cd1 100644 --- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java +++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java @@ -36,16 +36,23 @@ import java.util.Comparator; import java.util.Iterator; import java.util.List; +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + import at.gv.egiz.pdfas.exceptions.ErrorCode; import at.gv.egiz.pdfas.exceptions.pdf.CaptionNotFoundException; import at.gv.egiz.pdfas.exceptions.pdf.KZSettingNotFoundException; import at.gv.egiz.pdfas.framework.input.PdfDataSource; import at.gv.egiz.pdfas.framework.output.DataSink; +import at.knowcenter.wag.egov.egiz.cfg.SettingsReader; import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException; import at.knowcenter.wag.egov.egiz.exceptions.PlaceholderException; import at.knowcenter.wag.egov.egiz.exceptions.PresentableException; import at.knowcenter.wag.egov.egiz.exceptions.SettingNotFoundException; +import at.knowcenter.wag.egov.egiz.exceptions.SettingsException; +import at.knowcenter.wag.egov.egiz.exceptions.SignatureTypesException; import at.knowcenter.wag.egov.egiz.sig.SignatureFieldDefinition; +import at.knowcenter.wag.egov.egiz.sig.SignatureTypeDefinition; import at.knowcenter.wag.egov.egiz.sig.SignatureTypes; import at.knowcenter.wag.egov.egiz.tools.CodingHelper; import at.knowcenter.wag.exactparser.ByteArrayUtils; @@ -81,6 +88,7 @@ import com.lowagie.text.pdf.PdfTemplate; */ public abstract class BinarySignature { + protected static Log logger = LogFactory.getLog(BinarySignature.class); /** * The tolerance area of the line break algorithm. * @@ -193,6 +201,11 @@ public abstract class BinarySignature */ public static final PdfName EGIZ_CERTIFICATE_NAME = new PdfName("Cert"); + /** + * The PdfName of the data array that contains various egiz-dict data. + */ + public static final PdfName EGIZ_DATA_NAME = new PdfName("Data"); + /** * The PDFName of the Signature XObject field in an Egiz Dictionary. * @@ -410,175 +423,183 @@ public abstract class BinarySignature } // TODO old code - remove - // /** - // * Extracts the binary 'text' of a document. - // * - // *

- // * If the document contains an Egiz Dictionary, which means that it is already - // * signed, the binary text is the Base64 coded string of the original document - // * followed by the Ascii representation of the signature block. - // *

- // *

- // * If the document does not contain an Egiz Dictionary, which means that it is - // * unsigned, only the binary Base64 coded original document is returned as - // * binary text. - // *

- // *

- // * This function is intented for being used instead of the "text extraction" - // * mechanism used in the plain text Egiz project. - // *

- // * - // * @param doc - // * The file. - // * @return Returns the binary text of the document. - // * @throws PDFDocumentException - // * Forwarded exception. - // */ - // public static String extractTextBinary(File doc) throws PDFDocumentException - // { - // try - // { - // FileInputStream fis = new FileInputStream(doc); - // return extractTextBinary(fis); - // } - // catch (FileNotFoundException e) - // { - // throw new PDFDocumentException(202, e); - // } - // } + // /** + // * Extracts the binary 'text' of a document. + // * + // *

+ // * If the document contains an Egiz Dictionary, which means that it is + // already + // * signed, the binary text is the Base64 coded string of the original + // document + // * followed by the Ascii representation of the signature block. + // *

+ // *

+ // * If the document does not contain an Egiz Dictionary, which means that it + // is + // * unsigned, only the binary Base64 coded original document is returned as + // * binary text. + // *

+ // *

+ // * This function is intented for being used instead of the "text extraction" + // * mechanism used in the plain text Egiz project. + // *

+ // * + // * @param doc + // * The file. + // * @return Returns the binary text of the document. + // * @throws PDFDocumentException + // * Forwarded exception. + // */ + // public static String extractTextBinary(File doc) throws + // PDFDocumentException + // { + // try + // { + // FileInputStream fis = new FileInputStream(doc); + // return extractTextBinary(fis); + // } + // catch (FileNotFoundException e) + // { + // throw new PDFDocumentException(202, e); + // } + // } // - // /** - // * Extracts the text binary. - // * - // * @param is - // * @return Returns the binary text. - // * @throws PDFDocumentException - // */ - // public static String extractTextBinary(InputStream is) throws PDFDocumentException - // { - // try - // { - // // for some stupid reason this produces a read error if the is comes from - // // a - // // multipart servlet form..??? - // ByteArrayOutputStream baos = new ByteArrayOutputStream(); - // int i = -1; - // int acc = 0; - // byte[] b = new byte[1000]; - // while ((i = is.read(b)) > 0) - // { - // acc += i; - // System.out.print(" " + i); - // baos.write(b, 0, i); - // } - // System.out.println("acc = " + acc); - // byte[] pdf = baos.toByteArray(); + // /** + // * Extracts the text binary. + // * + // * @param is + // * @return Returns the binary text. + // * @throws PDFDocumentException + // */ + // public static String extractTextBinary(InputStream is) throws + // PDFDocumentException + // { + // try + // { + // // for some stupid reason this produces a read error if the is comes from + // // a + // // multipart servlet form..??? + // ByteArrayOutputStream baos = new ByteArrayOutputStream(); + // int i = -1; + // int acc = 0; + // byte[] b = new byte[1000]; + // while ((i = is.read(b)) > 0) + // { + // acc += i; + // System.out.print(" " + i); + // baos.write(b, 0, i); + // } + // System.out.println("acc = " + acc); + // byte[] pdf = baos.toByteArray(); // - // return extractTextBinary(pdf); - // } - // catch (IOException e) - // { - // throw new PDFDocumentException(202, e); - // } - // } + // return extractTextBinary(pdf); + // } + // catch (IOException e) + // { + // throw new PDFDocumentException(202, e); + // } + // } // - // /** - // * Extracts the signable text from a binary pdf document. - // * - // *

- // * The signable text is the text that will be signed or verified afterwards. - // *

- // * - // * @param pdf - // * The pdf document. - // * @return Returns the extracted text String. - // * @throws PDFDocumentException - // * Forwarded exception. - // */ - // public static String extractTextBinary(final byte[] pdf) throws PDFDocumentException - // { - // try - // { - // PdfReader reader = new PdfReader(new ByteArrayInputStream(pdf)); - // PdfDictionary egiz_dict = getEgizDictFromReader(reader); - // if (egiz_dict == null) - // { - // System.out.println("NO Egiz Dict found - whole doc = original doc"); + // /** + // * Extracts the signable text from a binary pdf document. + // * + // *

+ // * The signable text is the text that will be signed or verified afterwards. + // *

+ // * + // * @param pdf + // * The pdf document. + // * @return Returns the extracted text String. + // * @throws PDFDocumentException + // * Forwarded exception. + // */ + // public static String extractTextBinary(final byte[] pdf) throws + // PDFDocumentException + // { + // try + // { + // PdfReader reader = new PdfReader(new ByteArrayInputStream(pdf)); + // PdfDictionary egiz_dict = getEgizDictFromReader(reader); + // if (egiz_dict == null) + // { + // System.out.println("NO Egiz Dict found - whole doc = original doc"); // - // int ods = pdf.length; - // return retrieveSignableTextFromData(pdf, ods); - // } + // int ods = pdf.length; + // return retrieveSignableTextFromData(pdf, ods); + // } // - // String sig_text = extractSignatureTextOnly(egiz_dict); + // String sig_text = extractSignatureTextOnly(egiz_dict); // - // int ods = getOriginalDocumentSizeFromEgizDict(egiz_dict); + // int ods = getOriginalDocumentSizeFromEgizDict(egiz_dict); // - // String raw_text = retrieveSignableTextFromData(pdf, ods); - // raw_text += "\n"; - // raw_text += sig_text; + // String raw_text = retrieveSignableTextFromData(pdf, ods); + // raw_text += "\n"; + // raw_text += sig_text; // - // return raw_text; - // } - // catch (IOException e) - // { - // throw new PDFDocumentException(202, e); - // } - // } + // return raw_text; + // } + // catch (IOException e) + // { + // throw new PDFDocumentException(202, e); + // } + // } // TODO obsolete code - remove - // /** - // * Retrieves the List of SignatureHolders containing the information of all - // * digital signatures of the given document. - // * - // *

- // * If the List of SignatureHolders is empty, the document is not signed - // * anyways. - // *

- // * - // * @param pdf - // * The complete pdf document. - // * @return Returns the List of SignatureHolders. - // * @throws PDFDocumentException - // * @throws SignatureTypesException - // * @throws SignatureException - // */ - // public static List extractSignatureHoldersBinary(final byte[] pdf) throws PDFDocumentException, SignatureTypesException, SignatureException - // { - // try - // { - // PdfReader reader = new PdfReader(new ByteArrayInputStream(pdf)); - // List chain = getEgizDictChainFromReader(reader); + // /** + // * Retrieves the List of SignatureHolders containing the information of all + // * digital signatures of the given document. + // * + // *

+ // * If the List of SignatureHolders is empty, the document is not signed + // * anyways. + // *

+ // * + // * @param pdf + // * The complete pdf document. + // * @return Returns the List of SignatureHolders. + // * @throws PDFDocumentException + // * @throws SignatureTypesException + // * @throws SignatureException + // */ + // public static List extractSignatureHoldersBinary(final byte[] pdf) throws + // PDFDocumentException, SignatureTypesException, SignatureException + // { + // try + // { + // PdfReader reader = new PdfReader(new ByteArrayInputStream(pdf)); + // List chain = getEgizDictChainFromReader(reader); // - // List signatures = new ArrayList(); - // Iterator it = chain.iterator(); - // while (it.hasNext()) - // { - // PdfDictionary dict = (PdfDictionary) it.next(); + // List signatures = new ArrayList(); + // Iterator it = chain.iterator(); + // while (it.hasNext()) + // { + // PdfDictionary dict = (PdfDictionary) it.next(); // - // int ods = getOriginalDocumentSizeFromEgizDict(dict); - // String signature_text = extractSignatureTextOnly(dict); + // int ods = getOriginalDocumentSizeFromEgizDict(dict); + // String signature_text = extractSignatureTextOnly(dict); // - // SignatureTypes sig_types = SignatureTypes.getInstance(); - // List types = sig_types.getSignatureTypeDefinitions(); - // SignatureBlock sig_block = new SignatureBlock(types); - // boolean could_separate = sig_block.separateBlockFromRawText(signature_text, false); + // SignatureTypes sig_types = SignatureTypes.getInstance(); + // List types = sig_types.getSignatureTypeDefinitions(); + // SignatureBlock sig_block = new SignatureBlock(types); + // boolean could_separate = sig_block.separateBlockFromRawText(signature_text, + // false); // - // if (could_separate) - // { - // SignatureObject sig_object = sig_block.getSignatureObject(); + // if (could_separate) + // { + // SignatureObject sig_object = sig_block.getSignatureObject(); // - // SignatureHolder holder = new BinarySignatureHolder(pdf, ods, sig_object); - // signatures.add(holder); - // } - // } + // SignatureHolder holder = new BinarySignatureHolder(pdf, ods, sig_object); + // signatures.add(holder); + // } + // } // - // return signatures; - // } - // catch (IOException e) - // { - // throw new PDFDocumentException(201, e); - // } - // } + // return signatures; + // } + // catch (IOException e) + // { + // throw new PDFDocumentException(201, e); + // } + // } // /** // * Signs a document with the given signature table using the Incremental @@ -645,6 +666,26 @@ public abstract class BinarySignature // throw new PresentableException(e); // } // } + + protected static int getCertificatePlaceholderLength(IncrementalUpdateInformation iui) throws SettingNotFoundException + { + SettingsReader settings; + try + { + settings = SettingsReader.getInstance(); + } + catch (SettingsException e) + { + throw new SettingNotFoundException(e); + } + String certPhLen = SignatureTypeDefinition.readPhLenStringFromSettings(settings, iui.signProfile, "certificate"); + int certLen = CERTIFICATE_PLACEHOLDER_LENGTH; + if (certPhLen != null) + { + certLen = Integer.parseInt(certPhLen); + } + return certLen; + } /** * Signs a document with the given signature table using the Incremental @@ -673,31 +714,38 @@ public abstract class BinarySignature * @param pi * The PositioningInstruction telling the algorithm where to place * the signature block. + * @param invisible_field_definitions + * List of invisible field definitions to be added to the egiz dict. + * May be null or empty, if there are no invisible fields. + * @param invisibleKZString + * If not null, thins String is the KZ String to be written into the + * /Data array. * @return Returns the new document. * @throws PresentableException * Forwarded exception. */ - public static IncrementalUpdateInformation writeIncrementalUpdate(PdfDataSource original_document, DataSink written_pdf, PdfPTable pdf_table, PositioningInstruction pi, - List variable_field_definitions, List all_field_definitions) throws PresentableException + public static IncrementalUpdateInformation writeIncrementalUpdate(PdfDataSource original_document, DataSink written_pdf, PdfPTable pdf_table, String profile, PositioningInstruction pi, + List variable_field_definitions, List all_field_definitions, List invisible_field_definitions, String invisibleKZString) throws PresentableException { try { IncrementalUpdateInformation iui = new IncrementalUpdateInformation(); iui.original_document = original_document; iui.start_index = original_document.getLength(); + iui.signProfile = profile; Document.compress = false; // System.out.println("wprinz: STAMPING PDF"); - //InputStream is = original_document.createInputStream(); - byte [] pdf_data = original_document.getAsByteArray(); + // InputStream is = original_document.createInputStream(); + byte[] pdf_data = original_document.getAsByteArray(); PdfReader reader = new PdfReader(pdf_data); - //is.close(); + // is.close(); OutputStream baos = written_pdf.createOutputStream("application/pdf"); // ByteArrayOutputStream baos = new ByteArrayOutputStream(); - + // IMPORTANT: append the new content to the original document using // incremental updated // The stamper allows this by setting append = true @@ -738,7 +786,7 @@ public abstract class BinarySignature // table_position, content); content.addTemplate(table_template, pi.getX(), pi.getY() - pdf_table.getTotalHeight()); - + ActualTablePos atp = new ActualTablePos(); atp.page = pi.getPage(); atp.x = pi.getX(); @@ -793,7 +841,7 @@ public abstract class BinarySignature // add the EGIZ dict: if (variable_field_definitions != null) { - createEgizDict(stamper, table_template, iui, variable_field_definitions, all_field_definitions); + createEgizDict(stamper, table_template, iui, variable_field_definitions, all_field_definitions, invisible_field_definitions, invisibleKZString); } stamper.close(); @@ -830,10 +878,10 @@ public abstract class BinarySignature * The field definitions. * @throws IOException * @throws SettingNotFoundException - * @throws CaptionNotFoundException + * @throws CaptionNotFoundException */ - protected static void createEgizDict(PdfStamper stamper, PdfTemplate table_template, IncrementalUpdateInformation iui, List variable_field_definitions, List all_field_definitions) - throws IOException, SettingNotFoundException, CaptionNotFoundException + protected static void createEgizDict(PdfStamper stamper, PdfTemplate table_template, IncrementalUpdateInformation iui, List variable_field_definitions, List all_field_definitions, + List invisible_field_definitions, String invisibleKZString) throws IOException, SettingNotFoundException, CaptionNotFoundException { // iui.temp_ir = table_template.getIndirectReference(); iui.temp_ir_number = table_template.getIndirectReference().getNumber(); @@ -843,7 +891,19 @@ public abstract class BinarySignature iui.content_stream_length = content_stream.length; iui.replaces = determineReplacesInContentStream(content_stream, 0, content_stream.length, variable_field_definitions); - iui.kz_list = determineKZ(content_stream, 0, content_stream.length, all_field_definitions); + if (invisibleKZString == null) + { + iui.kz_list = determineKZ(content_stream, 0, content_stream.length, all_field_definitions); + } + else + { + StringInfo si = new StringInfo(); + si.string_start = -1; + si.string_length = invisibleKZString.length(); + + iui.kz_list = new ArrayList(); + iui.kz_list.add(si); + } // PdfIndirectReference previous_egiz_dict_ind_ref = // getEgizDictIndRefFromReader(reader); @@ -852,6 +912,7 @@ public abstract class BinarySignature egiz_dict.put(EGIZ_XOBJ_NAME, table_template.getIndirectReference()); egiz_dict.put(EGIZ_ODS_NAME, NUMBER_PLACEHOLDER); + // /ID PdfArray kz_array = new PdfArray(); for (int i = 0; i < iui.kz_list.size(); i++) { @@ -860,10 +921,16 @@ public abstract class BinarySignature } egiz_dict.put(EGIZ_KZ_NAME, kz_array); + // ByteRanges int num_replaces = calcNumReps(iui.replaces); int num_holes = num_replaces + 1 + 1; // +1 = the /encodings hole // +1 = the /Cert + boolean has_hidden_variable_fields = invisible_field_definitions != null && !invisible_field_definitions.isEmpty(); + if (has_hidden_variable_fields) + { + num_holes += invisible_field_definitions.size(); + } int num_byte_ranges = num_holes + 1; PdfArray byte_ranges_array = new PdfArray(); @@ -886,6 +953,36 @@ public abstract class BinarySignature replaces_array.add(new PdfName(new String(BREV_NIL, "US-ASCII"))); // the // /Cert + // hidden replaces + List hidden_replaces = null; + if (has_hidden_variable_fields) + { + hidden_replaces = new ArrayList(); + + Iterator it = invisible_field_definitions.iterator(); + while (it.hasNext()) + { + SignatureFieldDefinition sfd = (SignatureFieldDefinition) it.next(); + byte[] brev = typeToBrev(sfd.field_name); + encodings_array.add(new PdfName(new String(ENCODING_WIN, "US-ASCII"))); + replaces_array.add(new PdfName(new String(brev, "US-ASCII"))); + + ReplaceInfo ri = new ReplaceInfo(); + ri.brev = brev; + ri.enc = ENCODING_WIN; + ri.sfd = sfd; + ri.replaces = new ArrayList(); + + StringInfo si = new StringInfo(); + si.string_start = -1; // to be determined later on + si.string_length = sfd.placeholder_length; + ri.replaces.add(si); + + hidden_replaces.add(ri); + } + } + + // content stream replaces Iterator it = iui.replaces.iterator(); while (it.hasNext()) { @@ -893,11 +990,8 @@ public abstract class BinarySignature for (int i = 0; i < ri.replaces.size(); i++) { byte[] brev = typeToBrev(ri.sfd.field_name); - String brev_string = new String(brev, "US-ASCII"); - PdfName brev_name = new PdfName(brev_string); - replaces_array.add(brev_name); - encodings_array.add(new PdfName(new String(ENCODING_WIN, "US-ASCII"))); + replaces_array.add(new PdfName(new String(brev, "US-ASCII"))); } } egiz_dict.put(EGIZ_REPLACES_NAME, replaces_array); @@ -905,20 +999,48 @@ public abstract class BinarySignature egiz_dict.put(EGIZ_ENCODINGS_NAME, encodings_array); PdfArray cert_array = new PdfArray(); - byte[] cert_bytes = new byte[CERTIFICATE_PLACEHOLDER_LENGTH]; + iui.cert_length = getCertificatePlaceholderLength(iui); + byte[] cert_bytes = new byte[iui.cert_length]; for (int i = 0; i < cert_bytes.length; i++) { cert_bytes[i] = 0; } PdfString cert_placeholder = new PdfString(cert_bytes); cert_array.add(cert_placeholder); - egiz_dict.put(EGIZ_CERTIFICATE_NAME, cert_array); + egiz_dict.put(EGIZ_CERTIFICATE_NAME, cert_array); + + + // /Data array with hidden information + if (has_hidden_variable_fields || invisibleKZString != null) + { + PdfArray hidden_fields_array = new PdfArray(); + + if (invisibleKZString != null) + { + PdfString str = new PdfString(invisibleKZString); + hidden_fields_array.add(str); + } + + if (has_hidden_variable_fields) + { + iui.replaces.addAll(0, hidden_replaces); + + for (int i = 0; i < invisible_field_definitions.size(); i++) + { + SignatureFieldDefinition sfd = (SignatureFieldDefinition) invisible_field_definitions.get(i); + byte[] placeholder = new byte[sfd.placeholder_length]; + for (int phIdx = 0; phIdx < placeholder.length; phIdx++) + { + placeholder[phIdx] = SIGN_PLACEHOLDER; + } + PdfString str = new PdfString(placeholder); + hidden_fields_array.add(str); + } + } + + egiz_dict.put(EGIZ_DATA_NAME, hidden_fields_array); + } - // if (previous_egiz_dict_ind_ref != null) - // { - // egiz_dict.put(PdfName.PREV, previous_egiz_dict_ind_ref); - // } - // no EGIZ chain PdfIndirectObject dict_ref = stamper.getWriter().addToBody(egiz_dict); // iui.egiz_dict_ir = dict_ref.getIndirectReference(); @@ -1024,29 +1146,17 @@ public abstract class BinarySignature replaceNumber(signed_pdf, ods_start, signed_pdf.length, num_digits); - // update the Kennzeichnung byte ranges - int cur_pos = kz_start; - for (int i = 0; i < iui.kz_list.size(); i++) - { - StringInfo si = (StringInfo) iui.kz_list.get(i); - replaceNumber(signed_pdf, cur_pos, si.string_start, num_digits); - cur_pos += num_digits; - cur_pos += 1; - replaceNumber(signed_pdf, cur_pos, si.string_length, num_digits); - cur_pos += num_digits; - cur_pos += 1; - } - - int num_replaces = calcNumReps(iui.replaces); - int num_holes = num_replaces + 1 + 1; // +1 = the /encodings hole - // int num_byte_ranges = num_holes + 1; - - cur_pos = array_start; + int cur_pos = array_start; int cur_br_start = 0; // write the /encodings byte range { + int num_replaces = calcNumReps(iui.replaces); + int num_holes = num_replaces + 1 + 1; + // +1 = the /encodings hole + // +1 = the /Cert + int enc_length = (1 + 3) * num_holes; StringInfo byte_range = new StringInfo(); @@ -1069,8 +1179,6 @@ public abstract class BinarySignature // write the /Cert byte range { - int cert_length = CERTIFICATE_PLACEHOLDER_LENGTH; - StringInfo byte_range = new StringInfo(); byte_range.string_start = cur_br_start; byte_range.string_length = cert_start - cur_br_start; @@ -1083,10 +1191,39 @@ public abstract class BinarySignature cur_pos += num_digits; cur_pos += 1; - cur_br_start = cert_start + cert_length; + cur_br_start = cert_start + iui.cert_length; iui.cert_start = cert_start; - iui.cert_length = cert_length; + } + + // determine the /Data byte ranges if any + List ifd = iui.invisible_field_definitions; + if (!ifd.isEmpty() || iui.invisibleKZString != null) + { + String data_str = "/Data[("; + byte[] data_bytes = data_str.getBytes("US-ASCII"); + int data_index = ByteArrayUtils.indexOf(signed_pdf, obj_start, data_bytes); + int data_start = data_index + data_bytes.length; + + int hole_start = data_start; + + if (iui.invisibleKZString != null) + { + StringInfo si = (StringInfo) iui.kz_list.get(0); + si.string_start = hole_start; + + hole_start += si.string_length + 2; + } + + for (int i = 0; i < ifd.size(); i++) + { + ReplaceInfo ri = (ReplaceInfo) iui.replaces.get(i); + StringInfo si = (StringInfo) ri.replaces.get(0); + si.string_start = hole_start; + + hole_start += si.string_length + 2; + } + } Iterator rit = iui.replaces.iterator(); @@ -1131,6 +1268,21 @@ public abstract class BinarySignature cur_pos += num_digits; cur_pos += 1; + + // update the Kennzeichnung byte ranges + cur_pos = kz_start; + for (int i = 0; i < iui.kz_list.size(); i++) + { + StringInfo si = (StringInfo) iui.kz_list.get(i); + + replaceNumber(signed_pdf, cur_pos, si.string_start, num_digits); + cur_pos += num_digits; + cur_pos += 1; + replaceNumber(signed_pdf, cur_pos, si.string_length, num_digits); + cur_pos += num_digits; + cur_pos += 1; + } + } catch (IOException e) { @@ -1316,7 +1468,7 @@ public abstract class BinarySignature * where varaible strings are. * @return Returns the list of ReplaceInfo objects specifying the variable * areas. - * @throws CaptionNotFoundException + * @throws CaptionNotFoundException */ protected static List determineReplacesInContentStream(final byte[] pdf, int begin, int end, List field_definitions) throws CaptionNotFoundException { @@ -1730,30 +1882,30 @@ public abstract class BinarySignature } // TODO old code - remove - // /** - // * For debugging purposes. - // * - // * @param args - // * @throws IOException - // */ - // public static void main(String[] args) throws IOException - // { - // File signed_doc = new File("C:/wprinz/temp.pdf"); + // /** + // * For debugging purposes. + // * + // * @param args + // * @throws IOException + // */ + // public static void main(String[] args) throws IOException + // { + // File signed_doc = new File("C:/wprinz/temp.pdf"); // - // PdfReader reader = new PdfReader(new FileInputStream(signed_doc)); - // PdfDictionary egiz_dict = getEgizDictFromReader(reader); - // if (egiz_dict == null) - // { - // System.out.println("NO Egiz Dict"); - // return; - // } + // PdfReader reader = new PdfReader(new FileInputStream(signed_doc)); + // PdfDictionary egiz_dict = getEgizDictFromReader(reader); + // if (egiz_dict == null) + // { + // System.out.println("NO Egiz Dict"); + // return; + // } // - // String sig_text = extractSignatureTextOnly(egiz_dict); - // System.out.println("Sig Text:"); - // System.out.println(sig_text); + // String sig_text = extractSignatureTextOnly(egiz_dict); + // System.out.println("Sig Text:"); + // System.out.println(sig_text); // - // int ods = getOriginalDocumentSizeFromEgizDict(egiz_dict); - // System.out.println("Original Document Size = " + ods); - // } + // int ods = getOriginalDocumentSizeFromEgizDict(egiz_dict); + // System.out.println("Original Document Size = " + ods); + // } } diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/IncrementalUpdateInformation.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/IncrementalUpdateInformation.java index 77f1150..4352847 100644 --- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/IncrementalUpdateInformation.java +++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/IncrementalUpdateInformation.java @@ -178,4 +178,13 @@ public class IncrementalUpdateInformation implements Serializable */ public ActualTablePos actualTablePos; + /** + * The field definitions of invisible fields, which data should be stored in /Data. + */ + public List invisible_field_definitions; + + /** + * The invisible KZ String, if KZ is invisible. + */ + public String invisibleKZString = null; } -- cgit v1.2.3