diff options
Diffstat (limited to 'src/main/java')
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java | 594 | ||||
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/pdf/IncrementalUpdateInformation.java | 9 |
2 files changed, 382 insertions, 221 deletions
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.
*
@@ -194,6 +202,11 @@ 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.
*
* <p>
@@ -410,175 +423,183 @@ public abstract class BinarySignature }
// TODO old code - remove
- // /**
- // * Extracts the binary 'text' of a document.
- // *
- // * <p>
- // * 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.
- // * </p>
- // * <p>
- // * 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.
- // * </p>
- // * <p>
- // * This function is intented for being used instead of the "text extraction"
- // * mechanism used in the plain text Egiz project.
- // * </p>
- // *
- // * @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.
+ // *
+ // * <p>
+ // * 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.
+ // * </p>
+ // * <p>
+ // * 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.
+ // * </p>
+ // * <p>
+ // * This function is intented for being used instead of the "text extraction"
+ // * mechanism used in the plain text Egiz project.
+ // * </p>
+ // *
+ // * @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.
- // *
- // * <p>
- // * The signable text is the text that will be signed or verified afterwards.
- // * </p>
- // *
- // * @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.
+ // *
+ // * <p>
+ // * The signable text is the text that will be signed or verified afterwards.
+ // * </p>
+ // *
+ // * @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.
- // *
- // * <p>
- // * If the List of SignatureHolders is empty, the document is not signed
- // * anyways.
- // * </p>
- // *
- // * @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.
+ // *
+ // * <p>
+ // * If the List of SignatureHolders is empty, the document is not signed
+ // * anyways.
+ // * </p>
+ // *
+ // * @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;
}
|