Detection of incremental updates updated.

Bug fixed. There was an error concerning empty HashInputData parsing a MOA CreateXMLSignatureResponse.
Demo source for API usage created.
Issue resolved: Prevent signature of empty document which leads to a meaningless error message from the bku.


git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@284 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 169 insertions, 0 deletions

diff --git a/src/main/java/demo/APIDemo.java b/src/main/java/demo/APIDemo.java
new file mode 100644
index 0000000..d4ce5e7
--- /dev/null
+++ b/src/main/java/demo/APIDemo.java
@@ -0,0 +1,169 @@
+package demo;

+

+import java.io.File;

+import java.io.IOException;

+import java.io.PrintWriter;

+import java.util.Iterator;

+import java.util.List;

+

+import at.gv.egiz.pdfas.PdfAsFactory;

+import at.gv.egiz.pdfas.api.PdfAs;

+import at.gv.egiz.pdfas.api.analyze.AnalyzeParameters;

+import at.gv.egiz.pdfas.api.analyze.AnalyzeResult;

+import at.gv.egiz.pdfas.api.commons.Constants;

+import at.gv.egiz.pdfas.api.exceptions.PdfAsException;

+import at.gv.egiz.pdfas.api.io.DataSource;

+import at.gv.egiz.pdfas.api.sign.SignParameters;

+import at.gv.egiz.pdfas.api.sign.pos.SignaturePositioning;

+import at.gv.egiz.pdfas.api.verify.VerifyAfterAnalysisParameters;

+import at.gv.egiz.pdfas.api.verify.VerifyResult;

+import at.gv.egiz.pdfas.commandline.Main;

+import at.gv.egiz.pdfas.framework.config.SettingsHelper;

+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;

+import at.gv.egiz.pdfas.io.FileBasedDataSink;

+import at.gv.egiz.pdfas.io.FileBasedDataSource;

+

+public final class APIDemo {

+   

+   /**

+    * Disable instantiation.

+    */

+   private APIDemo() {

+   }

+   

+   /**

+    * Verifies a pdf document.

+    * @param configuration The folder containing the pdf-as work directory (including the configuration).

+    * @param source The signed pdf document.

+    * @param verifyDevice The device used for verification

+    *    (see {@link Constants#SIGNATURE_DEVICE_MOA} and {@link Constants#SIGNATURE_DEVICE_BKU}).

+    * @throws PdfAsException Thrown in case of an error.

+    * @throws IOException Thrown in case of an i/o error.

+    */

+   public static void verify(File configuration, File source, String verifyDevice) throws PdfAsException, IOException {

+      

+      // instantiate api

+      PdfAs pdfasAPI = PdfAsFactory.createPdfAs(configuration);

+

+      // set source

+      DataSource dataSource = new FileBasedDataSource(source, "application/pdf");

+

+      // evaluate settings

+      VerificationFilterParameters parameters = SettingsHelper.readVerificationFilterParametersFromSettings();

+      String verifyMode = Constants.VERIFY_MODE_FULL_CONSERVATIVE;

+      

+      if (parameters.extractBinarySignaturesOnly()) {

+         verifyMode = Constants.VERIFY_MODE_BINARY_ONLY;

+      } else if (parameters.assumeOnlySignatureUpdateBlocks()) {

+         verifyMode = Constants.VERIFY_MODE_SEMI_CONSERVATIVE;

+      } else {

+         verifyMode = Constants.VERIFY_MODE_FULL_CONSERVATIVE;

+      }

+      

+      // configure analyze parameters

+      AnalyzeParameters analyzeParameters = new AnalyzeParameters();

+      analyzeParameters.setDocument(dataSource);

+      analyzeParameters.setVerifyMode(verifyMode);

+      

+      // analyze

+      System.out.println("Analyzing...");

+      AnalyzeResult analyzeResult = pdfasAPI.analyze(analyzeParameters);

+      System.out.println("Successfully analyzed.");

+

+      // setup verification

+      VerifyAfterAnalysisParameters vaap = new VerifyAfterAnalysisParameters();

+      vaap.setAnalyzeResult(analyzeResult);

+      vaap.setReturnHashInputData(true);

+      vaap.setSignatureDevice(verifyDevice);

+      vaap.setVerificationTime(null);

+      

+      // invoke verification

+      System.out.println("Verifying...");

+      List verifyResults = pdfasAPI.verify(vaap).getResults();

+      System.out.println("Verification complete.");

+

+      // iterate over results

+      PrintWriter out = new PrintWriter(System.out);

+      Iterator it = verifyResults.iterator();

+      while (it.hasNext()) {

+         VerifyResult result = (VerifyResult) it.next();

+         Main.formatVerifyResult(result, out);

+      }

+      out.flush();

+      out.close();

+

+   }

+   

+   /**

+    * Signs a pdf document.

+    * @param configuration The folder containing the pdf-as work directory (including the configuration).

+    * @param source The unsigned pdf document.

+    * @param signatureDevice The device used for signature

+    *    (see {@link Constants#SIGNATURE_DEVICE_MOA} and {@link Constants#SIGNATURE_DEVICE_BKU}).

+    * @throws PdfAsException Thrown in case of an error.

+    * @throws IOException Thrown in case of an i/o error.

+    * @param destination The signed pdf document.

+    * @param signatureMode The mode used for signature (see {@link Constants#SIGNATURE_TYPE_BINARY}

+    * resp. {@link Constants#SIGNATURE_TYPE_TEXTUAL} or {@link Constants#SIGNATURE_TYPE_DETACHEDTEXTUAL}).

+    * @param signatureProfile The profile used for signature.

+    * @param signaturePos The position of the signature (see {@link SignaturePositioning}) or {@code null}.

+    */

+   private static void sign(File configuration, File source, File destination,

+         String signatureMode, String signatureDevice, String signatureProfile,

+         SignaturePositioning signaturePos) throws PdfAsException, IOException {

+      

+      // instantiate api

+      PdfAs pdfasAPI = PdfAsFactory.createPdfAs(configuration);

+

+      // set source

+      DataSource dataSource = new FileBasedDataSource(source, "application/pdf");

+

+      // set output

+      FileBasedDataSink dataSink = new FileBasedDataSink(destination);

+

+      // configure signature

+      SignParameters signParameters = new SignParameters();

+      signParameters.setDocument(dataSource);

+      signParameters.setOutput(dataSink);

+      signParameters.setSignatureType(signatureMode);

+      signParameters.setSignatureDevice(signatureDevice);

+      signParameters.setSignatureProfileId(signatureProfile);

+      signParameters.setSignaturePositioning(signaturePos);

+

+       // sign

+      System.out.println("Signing...");

+      pdfasAPI.sign(signParameters);

+      

+      System.out.println("Successfully signed.");

+         

+   }

+

+   /**

+    * Start a demo that signs a document and performs a verification afterwards.

+    * @param args The parameter(s).

+    */

+   public static void main(String[] args) {

+      

+      File configdir = new File("./work");

+      File unsignedFile = new File("./test-files/blindtext.pdf");

+      File signedFile = new File("./test-files/blindtext_signed.pdf");

+      

+      String signatureMode    = Constants.SIGNATURE_TYPE_BINARY;

+      String signatureDevice  = Constants.SIGNATURE_DEVICE_MOA;

+      String signatureProfile = "SIGNATURBLOCK_DE";

+      SignaturePositioning signaturePos = null;

+         

+      try {

+

+         sign(configdir, unsignedFile, signedFile, signatureMode, signatureDevice, signatureProfile, signaturePos);

+         verify(configdir, signedFile, signatureDevice);

+         

+      } catch (PdfAsException e) {

+         e.printStackTrace();

+      } catch (IOException e) {

+         e.printStackTrace();

+      }

+      

+   }

+

+}