diff options
Diffstat (limited to 'src/main/java/at/knowcenter/wag/egov/egiz/framework/signators/BinarySignator_1_0_0.java')
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/framework/signators/BinarySignator_1_0_0.java | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/framework/signators/BinarySignator_1_0_0.java b/src/main/java/at/knowcenter/wag/egov/egiz/framework/signators/BinarySignator_1_0_0.java new file mode 100644 index 0000000..d28ac3b --- /dev/null +++ b/src/main/java/at/knowcenter/wag/egov/egiz/framework/signators/BinarySignator_1_0_0.java @@ -0,0 +1,195 @@ +/**
+ * <copyright> Copyright (c) 2006 by Know-Center, Graz, Austria </copyright>
+ *
+ * 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.knowcenter.wag.egov.egiz.framework.signators;
+
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import com.lowagie.text.pdf.PdfPTable;
+
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+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.SignResult;
+import at.knowcenter.wag.egov.egiz.framework.Signator;
+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.ReplaceInfo;
+import at.knowcenter.wag.egov.egiz.pdf.StringInfo;
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+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.exactparser.ByteArrayUtils;
+
+/**
+ * Signs the document binary.
+ *
+ * <p>
+ * 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.
+ * </p>
+ * <p>
+ * In finishSign, the variable fields (values, /Cert) are replaced with the
+ * values according to the encoding.
+ * </p>
+ *
+ * @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);
+
+ /**
+ * Default constructor.
+ */
+ public BinarySignator_1_0_0()
+ {
+ // Default constructor.
+ }
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#prepareSign(byte[],
+ * String, TablePos, boolean)
+ */
+ public IncrementalUpdateInformation prepareSign(byte[] pdf,
+ String signature_type, TablePos pos, boolean has_SIG_ID) throws PresentableException
+ {
+ try
+ {
+ SignatureObject signature_object = PdfAS.createSignatureObjectFromType(signature_type);
+ signature_object.fillValues((char) BinarySignature.LAYOUT_PLACEHOLDER, has_SIG_ID);
+
+ signature_object.setKZ(MY_ID);
+
+ PdfPTable pdf_table = PdfAS.createPdfPTableFromSignatureObject(signature_object);
+
+ if (pos == null)
+ {
+ String pos_string = SettingsReader.getInstance().getSetting(SignatureTypes.SIG_OBJ + signature_type + ".pos", null);
+ if (pos_string != null)
+ {
+ pos = PdfAS.parsePositionFromPosString(pos_string);
+ pdf_table.setTotalWidth(pos.width);
+ pdf_table.setLockedWidth(true);
+ }
+ else
+ {
+ pos = PdfAS.adjustTableAndCalculatePosition(pdf, pdf_table);
+ }
+ }
+ else
+ {
+ pdf_table.setTotalWidth(pos.width);
+ pdf_table.setLockedWidth(true);
+ }
+
+ 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 = BinarySignature.writeIncrementalUpdate(pdf, pdf_table, pos, variable_field_definitions, all_field_definitions);
+
+ String temp_string = iui.temp_ir_number + " " + iui.temp_ir_generation + " obj";
+ byte[] temp_bytes = temp_string.getBytes("US-ASCII");
+ 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);
+
+ iui.document_text = BinarySignature.retrieveSignableTextFromData(iui.signed_pdf, iui.signed_pdf.length); // signed_pdf.length);
+
+ return iui;
+
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ e.printStackTrace();
+ throw new PDFDocumentException(201, e);
+ }
+ }
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#finishSign(at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation)
+ */
+ public SignResult finishSign(IncrementalUpdateInformation iui) throws PresentableException
+ {
+ // PdfAS.prefixID(iui.signed_signature_object, PdfAS.BINARY_ID);
+ Iterator it = iui.replaces.iterator();
+ while (it.hasNext())
+ {
+ ReplaceInfo ri = (ReplaceInfo) it.next();
+
+ ri.value = iui.signed_signature_object.getSigValue(ri.sfd.field_name);
+ }
+ BinarySignature.replaceCertificate(iui);
+ BinarySignature.replacePlaceholders(iui);
+
+ SignResult sign_result = new SignResult(PdfAS.PDF_MIME_TYPE, iui.signed_pdf);
+ return sign_result;
+ }
+
+}
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