diff options
Diffstat (limited to 'src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java')
| -rw-r--r-- | src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java deleted file mode 100644 index e337e71..0000000 --- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/AdobeSignatureHelper.java +++ /dev/null @@ -1,272 +0,0 @@ -/**
- * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
- * 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.
- */
-package at.knowcenter.wag.egov.egiz.pdf;
-
-import java.util.HashMap;
-import java.util.Iterator;
-
-import org.apache.commons.lang.StringUtils;
-import org.apache.log4j.Logger;
-
-import at.gv.egiz.pdfas.exceptions.ErrorCode;
-import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
-import at.gv.egiz.pdfas.utils.OgnlUtil;
-import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
-import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
-import at.knowcenter.wag.egov.egiz.exceptions.SettingsException;
-import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
-
-import com.lowagie.text.Rectangle;
-import com.lowagie.text.pdf.AcroFields;
-import com.lowagie.text.pdf.PdfDictionary;
-import com.lowagie.text.pdf.PdfFormField;
-import com.lowagie.text.pdf.PdfName;
-import com.lowagie.text.pdf.PdfNumber;
-import com.lowagie.text.pdf.PdfObject;
-import com.lowagie.text.pdf.PdfSignature;
-import com.lowagie.text.pdf.PdfSignatureAppearance;
-import com.lowagie.text.pdf.PdfStamper;
-import com.lowagie.text.pdf.PdfString;
-
-/**
- * Helper class for creating adobe signature attributes.
- *
- * @author dferbas
- *
- */
-public class AdobeSignatureHelper {
- private static final String ADOBE_SIGN_FIELDNAME_KEY = "adobeSignFieldValue";
-
- private static final String ADOBE_SIGN_REASONNAME_KEY = "adobeSignReasonValue";
-
- private static final String ADOBE_SIG_ENABLED_KEY = "adobeSignEnabled";
-
- private static Logger logger = Logger.getLogger(AdobeSignatureHelper.class);
-
- public static final String ADOBE_SIG_FILTER = "Adobe.PDF-AS";
-
- public static final String ADOBE_SIG_TEXT_KEY = "adobeSignText";
-
- private static final String ADOBE_VERIFY_URL_KEY = "verifyURL";
-
- /**
- * Writes Adobe-pdf signature entry with itext
- *
- * @param stamper
- * @param si
- * @param so
- * @param atp
- * @throws PresentableException
- */
- public static void createAdobeSignatureField(PdfStamper stamper, SignatorInformation si,
- SignatureObject so, ActualTablePos atp, StructContentHelper structHelper) throws PresentableException {
-
- try {
- logger.debug("Creating adobe signature field.");
- PdfSignatureAppearance sap = stamper.getSignatureAppearance();
-
- String profileId = so.getSignatureTypeDefinition().getType();
- String fieldName = getAdobeFieldName(profileId);
- // find field num
- /*
- int nexSigNum = 1;
- String finalFieldName = fieldName + " #" + nexSigNum;
-
- while (stamper.getAcroFields().getField(finalFieldName) != null) {
- nexSigNum++;
- finalFieldName = fieldName + " #" + nexSigNum;
- }
- */
-
- AcroFields af = stamper.getAcroFields();
- Iterator signatureNamesIt = af.getSignatureNames().iterator();
- PdfName referenceFilterName = new PdfName(ADOBE_SIG_FILTER);
- int nextSigNum = 1;
- while (signatureNamesIt.hasNext()) {
- PdfDictionary dictionary = (PdfDictionary) af.getSignatureDictionary((String) signatureNamesIt.next());
- PdfObject filterName = dictionary.get(PdfName.FILTER);
- if (filterName != null && filterName.isName()) {
- PdfName name = (PdfName) filterName;
- if (referenceFilterName.equals(name)) {
- nextSigNum++;
- }
- }
- }
- String finalFieldName = fieldName + " #" + nextSigNum;
-
- sap.setCrypto(null, null, null, null);
- // supress overlay text for visible signatures
- sap.setLayer2Text("");
- sap.setLayer4Text("");
-
- // the following line marks the sig block as adobe sig
- // sap.setVisibleSignature(createRectangleFromTablePos(iui.actualTablePos),
- // iui.actualTablePos.page, "PDF-AS-Signatur");
- sap.setVisibleSignature(new Rectangle(0, 0, 0, 0), atp.page, finalFieldName);
- String subfilter = "unknown";
- if (so != null && so.getKZ() != null) {
- subfilter = so.getKZ().toString();
- } else if (si != null) {
- subfilter = si.getSignSignatureObject().kz;
- }
- PdfSignature sig = new PdfSignature(new PdfName(ADOBE_SIG_FILTER), new PdfName(subfilter));
- // the following fields are not shown by the reader, because its is no
- // Standard filter
- // sig.setLocation("location is not visible");
- // sig.setReason("reason is not visible");
-
- // contact field is used to embed signature verification url for adobe handler
- String verifyURL = getVerifyUrl(profileId);
- if (!StringUtils.isEmpty(verifyURL)) {
- sig.setContact(getVerifyUrl(profileId));
- } else {
- logger.debug("No verify URL set -> verify URL is not embedded.");
- }
- // sig.setDate(new PdfDate());
-
- String reason = getAdobeReasonName(profileId);
- if (!StringUtils.isEmpty(reason)) {
- sig.setReason(reason);
- }
-
-
- /* disabled in order to align adobe signature appearance for textual signatures with binary signatures
- if (si != null) {
- XMLGregorianCalendar c = DatatypeFactory.newInstance().newXMLGregorianCalendar(
- si.getSignSignatureObject().date);
- sig.setDate(new PdfDate(c.toGregorianCalendar()));
- }
- */
-
- sig.setName(getAdobeSignText(profileId, si));
- sap.setCryptoDictionary(sig);
- sap.setCertificationLevel(PdfSignatureAppearance.NOT_CERTIFIED);
-
- // content element is mandatory but empty
- HashMap exc = new HashMap();
- exc.put(PdfName.CONTENTS, new Integer(2));
-
- PdfNumber parentNum = structHelper.buildAdobeSigStructParent();
- if (parentNum != null) {
- PdfFormField sigField = PdfFormField.createSignature(stamper.getWriter());
- sap.setSigFormField(sigField);
- sigField.put(PdfName.STRUCTPARENT, parentNum);
- structHelper.buildAdobeSigStruct(sigField, finalFieldName);
- }
- sap.preClose(exc); // *2+2
-
- PdfDictionary dic = new PdfDictionary();
- dic.put(PdfName.CONTENTS, new PdfString((String) null).setHexWriting(true));
- sap.close(dic);
- } catch (Exception ex) {
- logger.error("error", ex);
- throw new PresentableException(ErrorCode.CANNOT_WRITE_PDF,
- "Error creating adobe signature attribute", ex);
- }
- }
-
-
- /**
- * Returns if adobe signature is enabled for the passed signature profile.
- * Config key: {@value #ADOBE_SIG_ENABLED_KEY}
- * @param sigProfile
- * @return
- */
- public static boolean isAdobeSignatureFieldEnabled(String sigProfile) {
- return "true".equalsIgnoreCase(
- getDefaultableConfigProperty(sigProfile, ADOBE_SIG_ENABLED_KEY, "false"));
- }
-
- protected static Rectangle createRectangleFromTablePos(ActualTablePos pos) {
- return new Rectangle(pos.x, pos.y, pos.x + pos.width, pos.y - pos.height);
- }
-
- private static String getAdobeFieldName(String sigProfile) {
- return getDefaultableConfigProperty(sigProfile, ADOBE_SIGN_FIELDNAME_KEY, "PDF-AS Signatur");
- }
-
- private static String getAdobeReasonName(String sigProfile) {
- return getDefaultableConfigProperty(sigProfile, ADOBE_SIGN_REASONNAME_KEY, "Informationen zur Prüfung finden Sie unter http://www.signaturpruefung.gv.at");
- }
-
- private static String getVerifyUrl(String sigProfile) {
- return getDefaultableConfigProperty(sigProfile, ADOBE_VERIFY_URL_KEY, "http://www.signaturpruefung.gv.at");
- }
-
- public static String getDefaultableConfigProperty(String sigProfile, String propName, String defaultValue) {
- String confVal;
- try {
- confVal = SettingsReader.getInstance().getSetting(
- "sig_obj." + sigProfile + "." + propName,
- "default." + propName,
- defaultValue);
- } catch (SettingsException e) {
- logger.warn("error reading " + propName + " from config. Using default: " + defaultValue, e);
- return defaultValue;
- }
- return confVal;
- }
-
- /**
- * Evaluate name for adobe signature field. Get from config. Evaluate ognl if
- * ok.
- *
- * @param sigProfile
- * @param si
- * @return
- */
- private static String getAdobeSignText(String sigProfile, SignatorInformation si) {
- String defaultName = "PDF-AS";
- try {
- logger.debug("reading adobe sig name for profile: " + sigProfile);
- String propKey = ADOBE_SIG_TEXT_KEY + ".textual";
- if (si == null) {
- propKey = propKey.replaceAll("textual", "binary");
- }
- String adobeStr = getDefaultableConfigProperty(sigProfile, propKey, defaultName);
-
- HashMap ognlCtx = new HashMap();
- OgnlUtil ognl = new OgnlUtil(ognlCtx);
- if (ognl.containsExpression(adobeStr)) {
- if (si == null) {
- logger
- .error(ADOBE_SIG_TEXT_KEY
- + " ognl expressions not allowed for binary signatures (SignatorInformation not available)");
- return defaultName;
- }
- ognlCtx.put("si", si);
- ognlCtx.put("sso", si.getSignSignatureObject());
- String res = ognl.compileMessage(adobeStr);
- return res;
- } else {
- return adobeStr;
- }
-
- } catch (Exception ex) {
- logger.warn("error creating adobe sign text, using default '" + defaultName + "'", ex);
- return defaultName;
- }
- }
-
-}
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