diff options
Diffstat (limited to 'src/main/java/at/gv')
71 files changed, 5868 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/commandline/CommandlineConnectorChooser.java b/src/main/java/at/gv/egiz/pdfas/commandline/CommandlineConnectorChooser.java new file mode 100644 index 0000000..2bc6a58 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/commandline/CommandlineConnectorChooser.java @@ -0,0 +1,167 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.commandline;
+
+import at.gv.egiz.pdfas.framework.ConnectorFactory;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.ConnectorException;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.sig.sigid.HotfixIdFormatter;
+
+/**
+ * Encapsulates the logic of choosing the correct connector for the commandline
+ * that can later be created using the ConnectorFactory.
+ *
+ * @author wprinz
+ */
+public class CommandlineConnectorChooser
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(CommandlineConnectorChooser.class);
+
+ protected static final String BKU = "bku"; //$NON-NLS-1$
+
+ protected static final String MOA = "moa"; //$NON-NLS-1$
+
+ public static boolean needsSigId (String connectorId)
+ {
+ return !ConnectorFactory.isMOA(connectorId);
+ }
+
+ public static String chooseCommandlineConnectorForSign(String connectorType) throws ConnectorException
+ {
+ log.debug("Choosing Connector for commandline signation...");
+
+ log.debug("connector type = " + connectorType);
+
+ if (connectorType.equals(BKU))
+ {
+ log.debug("sig_app is BKU ==> DetachedMultipartBKUConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.DETACHED_MULTIPART_BKU_CONNECTOR;
+ }
+ if (connectorType.equals(MOA))
+ {
+ // TODO MOA detached signing is not allowed at the commandline
+ log.warn("Detached MOA is not supported on the commandline. -> choosing Base64 temporarily.");
+ return ConnectorFactory.ENVELOPING_BASE64_MOA_CONNECTOR;
+ }
+
+ throw new ConnectorException(300, "Unknown connector type '" + connectorType + "' specified.");
+ }
+
+ public static String chooseCommandlineConnectorForVerify(String connectorType, PdfASID sig_kz, String sig_id, String profile) throws ConnectorException
+ {
+ log.debug("Choosing Connector for Commandline verification...");
+
+ log.debug("connector type = " + connectorType);
+ log.debug("sig_kz = " + sig_kz); //$NON-NLS-1$
+ log.debug("sig_id = " + sig_id); //$NON-NLS-1$
+
+ if (sig_kz == null)
+ {
+ log.debug("sig_kz is null -> chose an old enveloped base64 connector"); //$NON-NLS-1$
+
+ return chooseEnvelopingBase64ConnectorOld(connectorType);
+ }
+
+ log.debug("sig_kz is not null -> one of the newer signatures");
+
+ if (sig_kz.getVersion().equals(SignatorFactory.VERSION_1_0_0))
+ {
+ log.debug("Version is 1.0.0 -> Base64 Signatur (old or Hotfix).");
+
+ if (sig_id == null)
+ {
+ log.debug("sig_id is null, which means that it is a MOA signature -> choose a hotfix base64 connector (thus it is moa - it doesn't matter).");
+
+ return chooseEnvelopingBase64ConnectorHotfix(connectorType);
+ }
+
+ String[] sig_id_parts = sig_id.split("@");
+ if (sig_id_parts.length == 2)
+ {
+ log.debug("sig_id has 2 @-separated parts -> choosing old base64 connector");
+
+ return chooseEnvelopingBase64ConnectorOld(connectorType);
+ }
+ if (sig_id_parts[0].equals(HotfixIdFormatter.SIG_ID_PREFIX))
+ {
+ log.debug("sig_id prefix is hotfix -> choosing hotfix base64 connector");
+
+ return chooseEnvelopingBase64ConnectorHotfix(connectorType);
+ }
+
+ throw new ConnectorException(300, "The SIG_KZ version is 1.0.0, but SIG_ID is neither MOA nor Old base64 nor Hotfix base64 ???'");
+ }
+ if (sig_kz.getVersion().equals(SignatorFactory.VERSION_1_1_0))
+ {
+ log.debug("Version is 1.1.0 -> chose a detached connector.");
+
+ return chooseDetachedMultipartConnector(connectorType);
+ }
+
+ throw new ConnectorException(310, "The SIG_KZ version '" + sig_kz.getVersion() + "' is unknown.");
+ }
+
+ protected static String chooseEnvelopingBase64ConnectorOld(String sig_app) throws ConnectorException
+ {
+ if (sig_app.equals(BKU))
+ {
+ log.debug("sig_app is BKU ==> OldEnvelopingBase64BKUConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.OLD_ENVELOPING_BASE64_BKU_CONNECTOR;
+ }
+ if (sig_app.equals(MOA))
+ {
+ log.debug("sig_app is MOA ==> EnvelopingBase64MOAConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.ENVELOPING_BASE64_MOA_CONNECTOR;
+ }
+ throw new ConnectorException(310, "Unknown sig_app '" + sig_app + "'."); //$NON-NLS-1$ //$NON-NLS-2$
+
+ }
+
+ protected static String chooseEnvelopingBase64ConnectorHotfix(String sig_app) throws ConnectorException
+ {
+ if (sig_app.equals(BKU))
+ {
+ log.debug("sig_app is BKU ==> EnvelopingBase64BKUConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.ENVELOPING_BASE64_BKU_CONNECTOR;
+ }
+ if (sig_app.equals(MOA))
+ {
+ log.debug("sig_app is MOA ==> EnvelopingBase64MOAConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.ENVELOPING_BASE64_MOA_CONNECTOR;
+ }
+ throw new ConnectorException(310, "Unknown sig_app '" + sig_app + "'."); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+
+ protected static String chooseDetachedMultipartConnector(String sig_app) throws ConnectorException
+ {
+ if (sig_app.equals(BKU))
+ {
+ log.debug("sig_app is BKU ==> DetachedMultipartBKUConnector"); //$NON-NLS-1$
+
+ return ConnectorFactory.DETACHED_MULTIPART_BKU_CONNECTOR;
+ }
+ if (sig_app.equals(MOA))
+ {
+ log.debug("sig_app is MOA ==> DetachedMOAConnector"); //$NON-NLS-1$
+
+ String msg = "A Detached signature cannot be verified with the MOA connector (yet)."; //$NON-NLS-1$
+ log.error(msg);
+ throw new ConnectorException(370, msg);
+ }
+ throw new ConnectorException(310, "Unknown sig_app '" + sig_app + "'."); //$NON-NLS-1$ //$NON-NLS-2$
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java new file mode 100644 index 0000000..dda4919 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCode.java @@ -0,0 +1,49 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions;
+
+/**
+ * Contains constants for the error codes.
+ *
+ * <p>
+ * In Java 1.5 this would be an enum.
+ * </p>
+ *
+ * @author wprinz
+ */
+public final class ErrorCode
+{
+ public static final int EXTERNAL_ERROR = 0;
+
+ public static final int SETTING_NOT_FOUND = 100;
+ public static final int SETTINGS_EXCEPTION = 101;
+ public static final int KZ_SETTING_NOT_FOUND = 102;
+
+ public static final int DOCUMENT_CANNOT_BE_READ = 201;
+ public static final int TEXT_EXTRACTION_EXCEPTION = 202;
+ public static final int CANNOT_WRITE_PDF = 205;
+ public static final int DOCUMENT_NOT_SIGNED = 206;
+ public static final int SIGNATURE_TYPES_EXCEPTION = 223;
+
+ public static final int SIGNATURE_COULDNT_BE_CREATED = 300;
+ public static final int SIGNED_TEXT_EMPTY = 301;
+ public static final int PROFILE_NOT_DEFINED = 302;
+ public static final int SERIAL_NUMBER_INVALID = 303;
+ public static final int SIG_CERTIFICATE_CANNOT_BE_READ = 304;
+
+ public static final int COULDNT_VERIFY = 310;
+
+ public static final int NOT_SEMANTICALLY_EQUAL = 314;
+
+ public static final int WEB_EXCEPTION = 330;
+
+
+ public static final int NORMALIZER_EXCEPTION = 400;
+
+ public static final int SESSION_EXPIRED = 600;
+
+ public static final int PLACEHOLDER_EXCEPTION = 700;
+
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCodeHelper.java b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCodeHelper.java new file mode 100644 index 0000000..4144a10 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/ErrorCodeHelper.java @@ -0,0 +1,43 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
+import at.knowcenter.wag.egov.egiz.exceptions.SettingNotFoundException;
+import at.knowcenter.wag.egov.egiz.exceptions.SettingsException;
+
+/**
+ * @author wprinz
+ *
+ */
+public class ErrorCodeHelper
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(ErrorCodeHelper.class);
+
+ public static String getMessageForErrorCode(int errorCode)
+ {
+ try
+ {
+ SettingsReader settings = SettingsReader.getInstance();
+ String message = settings.getSetting("error.code." + errorCode);
+ return message;
+ }
+ catch (SettingsException e)
+ {
+ log.warn(e);
+ }
+ catch (SettingNotFoundException e)
+ {
+ log.warn(e);
+ }
+ return null;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/external/ExternalErrorException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/external/ExternalErrorException.java new file mode 100644 index 0000000..4e12ced --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/external/ExternalErrorException.java @@ -0,0 +1,43 @@ +package at.gv.egiz.pdfas.exceptions.external;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.ConnectorException;
+
+public class ExternalErrorException extends ConnectorException
+{
+
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = 2108427722915583885L;
+
+ protected String externalErrorCode;
+
+ protected String externalErrorMessage;
+
+ public ExternalErrorException(String externalErrorCode, String externalErrorMessage)
+ {
+ super(ErrorCode.EXTERNAL_ERROR, "External Error " + externalErrorCode + ": " + externalErrorMessage);
+
+ this.externalErrorCode = externalErrorCode;
+ this.externalErrorMessage = externalErrorMessage;
+ }
+
+ /**
+ * @return the externalErrorCode
+ */
+ public String getExternalErrorCode()
+ {
+ return externalErrorCode;
+ }
+
+ /**
+ * @return the externalErrorMessage
+ */
+ public String getExternalErrorMessage()
+ {
+ return externalErrorMessage;
+ }
+
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/framework/SignatorException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/SignatorException.java new file mode 100644 index 0000000..84868d8 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/SignatorException.java @@ -0,0 +1,40 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions.framework;
+
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+
+/**
+ * Exception thrown by the Signators.
+ * @author wprinz
+ */
+public class SignatorException extends PresentableException
+{
+
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = 5051232904560832089L;
+
+ public SignatorException(int error_code, String message, Throwable cause)
+ {
+ super(error_code, message, cause);
+ }
+
+ public SignatorException(int error_code, String message)
+ {
+ super(error_code, message);
+ }
+
+ public SignatorException(int error_code, Throwable cause)
+ {
+ super(error_code, cause);
+ }
+
+ public SignatorException(PresentableException pe)
+ {
+ super(pe.getErrorCode(), pe);
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificationFilterException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificationFilterException.java new file mode 100644 index 0000000..5569e5d --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificationFilterException.java @@ -0,0 +1,40 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions.framework;
+
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+/**
+ * Wrapper exception for the VerificationFilter.
+ *
+ * @author wprinz
+ */
+public class VerificationFilterException extends PresentableException
+{
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = -3863253910537746742L;
+
+ public VerificationFilterException(int errorCode, String message, Throwable cause)
+ {
+ super(errorCode, message, cause);
+ }
+
+ public VerificationFilterException(int errorCode, String message)
+ {
+ super(errorCode, message);
+ }
+
+ public VerificationFilterException(int errorCode, Throwable cause)
+ {
+ super(errorCode, cause);
+ }
+
+ public VerificationFilterException(PresentableException cause)
+ {
+ super(cause.getErrorCode(), cause);
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificatorFactoryException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificatorFactoryException.java new file mode 100644 index 0000000..4721cdb --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/framework/VerificatorFactoryException.java @@ -0,0 +1,49 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions.framework;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+/**
+ * @author wprinz
+ *
+ */
+public class VerificatorFactoryException extends PresentableException
+{
+
+ /**
+ *
+ */
+ private static final long serialVersionUID = 8765156531863056335L;
+
+ /**
+ * @param errorCode
+ * @param message
+ */
+ public VerificatorFactoryException(String message)
+ {
+ super(ErrorCode.COULDNT_VERIFY, message);
+ }
+
+ /**
+ * @param errorCode
+ * @param message
+ * @param cause
+ */
+ public VerificatorFactoryException(String message, Throwable cause)
+ {
+ super(ErrorCode.COULDNT_VERIFY, message, cause);
+ }
+
+ /**
+ * @param errorCode
+ * @param cause
+ */
+ public VerificatorFactoryException(Throwable cause)
+ {
+ super(ErrorCode.COULDNT_VERIFY, cause);
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/KZSettingNotFoundException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/KZSettingNotFoundException.java new file mode 100644 index 0000000..816a2c1 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/KZSettingNotFoundException.java @@ -0,0 +1,27 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions.pdf;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.SettingNotFoundException;
+
+/**
+ * @author wprinz
+ *
+ */
+public class KZSettingNotFoundException extends SettingNotFoundException
+{
+
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = 2516636821733440462L;
+
+ public KZSettingNotFoundException(String message)
+ {
+ super(ErrorCode.KZ_SETTING_NOT_FOUND, message);
+ }
+
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/TextExtractionException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/TextExtractionException.java new file mode 100644 index 0000000..1f54bb5 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/pdf/TextExtractionException.java @@ -0,0 +1,18 @@ +package at.gv.egiz.pdfas.exceptions.pdf;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+public class TextExtractionException extends PresentableException
+{
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = 2798763345488999563L;
+
+ public TextExtractionException(Throwable cause)
+ {
+ super(ErrorCode.TEXT_EXTRACTION_EXCEPTION, cause);
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/exceptions/web/SessionExpiredException.java b/src/main/java/at/gv/egiz/pdfas/exceptions/web/SessionExpiredException.java new file mode 100644 index 0000000..bb55293 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/exceptions/web/SessionExpiredException.java @@ -0,0 +1,48 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.exceptions.web;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+/**
+ * @author wprinz
+ *
+ */
+public class SessionExpiredException extends PresentableException
+{
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = -1877790545371341233L;
+
+ /**
+ * @param errorCode
+ * @param message
+ */
+ public SessionExpiredException(String message)
+ {
+ super(ErrorCode.SESSION_EXPIRED, message);
+ }
+
+ /**
+ * @param errorCode
+ * @param message
+ * @param cause
+ */
+ public SessionExpiredException(String message, Throwable cause)
+ {
+ super(ErrorCode.SESSION_EXPIRED, message, cause);
+ }
+
+ /**
+ * @param errorCode
+ * @param cause
+ */
+ public SessionExpiredException(Throwable cause)
+ {
+ super(ErrorCode.SESSION_EXPIRED, cause);
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/ConnectorFactory.java b/src/main/java/at/gv/egiz/pdfas/framework/ConnectorFactory.java new file mode 100644 index 0000000..65c5af7 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/ConnectorFactory.java @@ -0,0 +1,83 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework;
+
+import at.knowcenter.wag.egov.egiz.exceptions.ConnectorException;
+import at.knowcenter.wag.egov.egiz.exceptions.ConnectorFactoryException;
+import at.knowcenter.wag.egov.egiz.sig.connectors.Connector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.EnvelopedBase64BKUConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.MultipartDetachedBKUConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.OldEnvelopingBase64BKUConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.moa.DetachedLocRefMOAConnector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.moa.EnvelopingBase64MOAConnector;
+
+/**
+ * @author wprinz
+ */
+public class ConnectorFactory
+{
+ // TODO the functionality of the connector should be split into template
+ // handling and the actualy hardware access
+
+ public static String DETACHED_MULTIPART_BKU_CONNECTOR = "DetachedMultipartBKUConnector";
+
+ public static String ENVELOPING_BASE64_BKU_CONNECTOR = "EnvelopingBase64BKUConnector";
+
+ public static String OLD_ENVELOPING_BASE64_BKU_CONNECTOR = "OldEnvelopingBase64BKUConnector";
+
+ public static String DETACHED_LOCREF_MOA_CONNECTOR = "DetachedLocRefMOAConnector";
+
+ public static String ENVELOPING_BASE64_MOA_CONNECTOR = "EnvelopingBase64MOAConnector";
+
+
+
+ public static Connector createConnector (String connectorId, String profile, String locRef) throws ConnectorFactoryException, ConnectorException
+ {
+ if (connectorId.equals(DETACHED_MULTIPART_BKU_CONNECTOR))
+ {
+ return new MultipartDetachedBKUConnector(profile);
+ }
+
+ if (connectorId.equals(ENVELOPING_BASE64_BKU_CONNECTOR))
+ {
+ return new EnvelopedBase64BKUConnector(profile);
+ }
+
+ if (connectorId.equals(OLD_ENVELOPING_BASE64_BKU_CONNECTOR))
+ {
+ return new OldEnvelopingBase64BKUConnector(profile);
+ }
+
+ if (connectorId.equals(DETACHED_LOCREF_MOA_CONNECTOR))
+ {
+ return new DetachedLocRefMOAConnector(profile, locRef);
+ }
+
+ if (connectorId.equals(ENVELOPING_BASE64_MOA_CONNECTOR))
+ {
+ return new EnvelopingBase64MOAConnector(profile);
+ }
+
+ throw new ConnectorFactoryException("The connector Id " + connectorId + " couldn't be found by the ConnectorFactory.");
+ }
+
+ public static boolean isMOA (String connectorId)
+ {
+ if (connectorId.equals(DETACHED_LOCREF_MOA_CONNECTOR) || connectorId.equals(ENVELOPING_BASE64_MOA_CONNECTOR))
+ {
+ return true;
+ }
+
+ return false;
+ }
+
+// public static Connector createConnectorForCommandline (String connectorId) throws ConnectorFactoryException
+// {
+// }
+//
+// public static Connector createConnectorForCommandline (String connectorId) throws ConnectorFactoryException
+// {
+// }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/DataManager.java b/src/main/java/at/gv/egiz/pdfas/framework/DataManager.java new file mode 100644 index 0000000..1640b07 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/DataManager.java @@ -0,0 +1,35 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework;
+
+/**
+ * The DataManager is a mediator for all components that need to allocate large
+ * data elements.
+ *
+ * <p>
+ * The DataManager uses a certain DataStrategy to perform the actual tasks. The
+ * strategy may be different in different environments. E.g. The commandline may
+ * implement a strategy to keep all data in memory, whereas the web might
+ * implement one that puts as many data onto the disk as possible to save
+ * memory.
+ * </p>
+ *
+ * @author wprinz
+ *
+ */
+public class DataManager
+{
+ protected static DataStrategy dataStrategy = null;
+
+ public static void initialize(DataStrategy ds)
+ {
+ dataStrategy = ds;
+ }
+
+ public static DataStrategy getDataStrategy()
+ {
+ return dataStrategy;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java b/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java new file mode 100644 index 0000000..22f9676 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java @@ -0,0 +1,37 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework;
+
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+
+/**
+ * Factory for creating DataSources.
+ *
+ * @author wprinz
+ */
+public interface DataStrategy
+{
+
+ public TextDataSource createTextDataSource (String text);
+
+ public PdfDataSource createPdfDataSource (InputStream is);
+
+ public PdfDataSource createPdfDataSource (DataSource other, int length);
+
+ /**
+ * @deprecated - use streaming.
+ * @param pdf
+ * @return
+ */
+ public PdfDataSource createPdfDataSource (byte [] pdf);
+
+ public void destroyDataSource (DataSource dataSource);
+
+ public DataSink createDataSink ();
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/SignatorFactory.java b/src/main/java/at/gv/egiz/pdfas/framework/SignatorFactory.java new file mode 100644 index 0000000..d4ecc26 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/SignatorFactory.java @@ -0,0 +1,100 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.SignatorFactoryException;
+import at.gv.egiz.pdfas.impl.signator.binary.BinarySignator_1_0_0;
+import at.gv.egiz.pdfas.impl.signator.binary.BinarySignator_1_1_0;
+import at.gv.egiz.pdfas.impl.signator.detached.DetachedTextualSignator_1_0_0;
+import at.gv.egiz.pdfas.impl.signator.textual.TextualSignator_1_0_0;
+import at.gv.egiz.pdfas.impl.signator.textual.TextualSignator_1_1_0;
+import at.gv.egiz.pdfas.framework.signator.Signator;
+
+/**
+ * @author wprinz
+ *
+ */
+public class SignatorFactory
+{
+ /**
+ * The Vendor.
+ */
+ public static final String VENDOR = "bka.gv.at"; //$NON-NLS-1$
+
+ /**
+ * The binary Signator algorithm.
+ */
+ public static final String TYPE_BINARY = "binaer"; //$NON-NLS-1$
+
+ /**
+ * The textual Signator algorithm.
+ */
+ public static final String TYPE_TEXTUAL = "text"; //$NON-NLS-1$
+
+ /**
+ * Detached Signator.
+ */
+ public static final String TYPE_DETACHED_TEXTUAL = "detachedtext"; //$NON-NLS-1$
+
+ /**
+ * This application's current algorithm versions.
+ */
+ public static final String VERSION_1_0_0 = "v1.0.0"; //$NON-NLS-1$
+
+ /**
+ * This application's current algorithm versions.
+ */
+ public static final String VERSION_1_1_0 = "v1.1.0"; //$NON-NLS-1$
+
+
+ public static Signator createSignator (PdfASID id) throws SignatorFactoryException
+ {
+ if (!id.getVendor().equals(VENDOR))
+ {
+ throw new SignatorFactoryException("The vendor '" + id.getVendor() + "' is unrecognized by this SignatorFactory. (id='" + id + "')"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+ }
+
+ if (id.getType().equals(TYPE_BINARY))
+ {
+ if (id.getVersion().equals(VERSION_1_0_0))
+ {
+ return new BinarySignator_1_0_0();
+ }
+ if (id.getVersion().equals(VERSION_1_1_0))
+ {
+ return new BinarySignator_1_1_0();
+ }
+
+ throw new SignatorFactoryException("The version '" + id.getVersion() + "' of type '" + id.getType() + "' is not supported by this SignatorFactory. (id='" + id + "')"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+ }
+
+ if (id.getType().equals(TYPE_TEXTUAL))
+ {
+ if (id.getVersion().equals(VERSION_1_0_0))
+ {
+ return new TextualSignator_1_0_0();
+ }
+ if (id.getVersion().equals(VERSION_1_1_0))
+ {
+ return new TextualSignator_1_1_0();
+ }
+
+ throw new SignatorFactoryException("The version '" + id.getVersion() + "' of type '" + id.getType() + "' is not supported by this SignatorFactory. (id='" + id + "')"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+ }
+
+ if (id.getType().equals(TYPE_DETACHED_TEXTUAL))
+ {
+ if (id.getVersion().equals(VERSION_1_0_0))
+ {
+ return new DetachedTextualSignator_1_0_0();
+ }
+
+ throw new SignatorFactoryException("The version '" + id.getVersion() + "' of type '" + id.getType() + "' is not supported by this SignatorFactory. (id='" + id + "')"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+ }
+
+ throw new SignatorFactoryException("The type '" + id.getType() + "' is not supported by this SignatorFactory. (id='" + id + "')"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/SignatureHolderHelper.java b/src/main/java/at/gv/egiz/pdfas/framework/SignatureHolderHelper.java new file mode 100644 index 0000000..ab77092 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/SignatureHolderHelper.java @@ -0,0 +1,34 @@ +package at.gv.egiz.pdfas.framework;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import at.knowcenter.wag.egov.egiz.pdf.EGIZDate;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+
+public final class SignatureHolderHelper
+{
+
+ /**
+ * Sorts the List of SignatureHolders by date.
+ *
+ * @param signatureHolders
+ * The List of SignatureHolders.
+ */
+ public static void sortByDate(List signatureHolders)
+ {
+ Collections.sort(signatureHolders, new Comparator() {
+ public int compare(Object o1, Object o2)
+ {
+ SignatureHolder sh1 = (SignatureHolder) o1;
+ SignatureHolder sh2 = (SignatureHolder) o2;
+
+ EGIZDate date1 = EGIZDate.parseFromString(sh1.getSignatureObject().getSignationDate());
+ EGIZDate date2 = EGIZDate.parseFromString(sh2.getSignatureObject().getSignationDate());
+
+ return date1.compareTo(date2);
+ }
+ });
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/VerificatorFactory.java b/src/main/java/at/gv/egiz/pdfas/framework/VerificatorFactory.java new file mode 100644 index 0000000..f77ca23 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/VerificatorFactory.java @@ -0,0 +1,45 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework;
+
+import at.gv.egiz.pdfas.exceptions.framework.VerificatorFactoryException;
+import at.gv.egiz.pdfas.framework.verificator.Verificator;
+import at.gv.egiz.pdfas.impl.verificator.binary.BinaryVerificator_1_0_0;
+import at.gv.egiz.pdfas.impl.verificator.binary.BinaryVerificator_1_1_0;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+
+/**
+ * @author wprinz
+ *
+ */
+public class VerificatorFactory
+{
+
+ public static Verificator createVerificator(PdfASID kz) throws VerificatorFactoryException
+ {
+ if (kz.getType().equals(SignatorFactory.TYPE_BINARY))
+ {
+ return createBinaryVerificator(kz);
+ }
+
+ return null;
+ }
+
+ public static Verificator createBinaryVerificator(PdfASID kz) throws VerificatorFactoryException
+ {
+ assert kz.getType().equals(SignatorFactory.TYPE_BINARY);
+
+ if (kz.equals(BinaryVerificator_1_0_0.MY_ID))
+ {
+ return new BinaryVerificator_1_0_0();
+ }
+ if (kz.equals(BinaryVerificator_1_1_0.MY_ID))
+ {
+ return new BinaryVerificator_1_1_0();
+ }
+
+ throw new VerificatorFactoryException("kz is not a known binary signator " + kz);
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/config/SettingsHelper.java b/src/main/java/at/gv/egiz/pdfas/framework/config/SettingsHelper.java new file mode 100644 index 0000000..6f67d1d --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/config/SettingsHelper.java @@ -0,0 +1,37 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.config;
+
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;
+import at.gv.egiz.pdfas.impl.vfilter.VerificationFilterParametersImpl;
+import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
+import at.knowcenter.wag.egov.egiz.exceptions.SettingsException;
+
+/**
+ * Contains helpful Settings functions.
+ * @author wprinz
+ */
+public final class SettingsHelper
+{
+ public static VerificationFilterParameters readVerificationFilterParametersFromSettings() throws SettingsException
+ {
+ boolean binaryOnly = getFlag("binary_only");
+ boolean assumeOnlySB = getFlag("assume_only_signauture_blocks");
+ boolean checkOld = getFlag("check_old_textual_sigs");
+
+ VerificationFilterParameters vfp = new VerificationFilterParametersImpl(binaryOnly, assumeOnlySB, checkOld);
+ return vfp;
+ }
+
+ protected static boolean getFlag (String settingsKey) throws SettingsException
+ {
+ String flag = SettingsReader.getInstance().getSetting(settingsKey, "false");
+ boolean b = true;
+ if (flag.equals("false"))
+ {
+ b = false;
+ }
+ return b;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/input/DataSource.java b/src/main/java/at/gv/egiz/pdfas/framework/input/DataSource.java new file mode 100644 index 0000000..265cb0c --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/input/DataSource.java @@ -0,0 +1,35 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.input;
+
+import java.io.InputStream;
+
+/**
+ * The input document data source.
+ *
+ * <p>
+ * Usually this is a PdfDataSource, but it may be a TextDataSource as well.
+ * </p>
+ *
+ * @author wprinz
+ *
+ */
+public interface DataSource
+{
+ /**
+ * Creates a new InputStream that allows to read out the document's binary
+ * data from the beginning.
+ *
+ * @return Returns the InputStream with the binary data.
+ */
+ public InputStream createInputStream();
+
+ /**
+ * Returns the length (number of bytes) of the stream.
+ *
+ * @return Returns the length (number of bytes) of the stream.
+ */
+ public int getLength();
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/input/ExtractionStage.java b/src/main/java/at/gv/egiz/pdfas/framework/input/ExtractionStage.java new file mode 100644 index 0000000..36d9bd8 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/input/ExtractionStage.java @@ -0,0 +1,66 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.input;
+
+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.framework.VerificationFilterException;
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilter;
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;
+import at.gv.egiz.pdfas.impl.input.IncrementalUpdateParser;
+import at.gv.egiz.pdfas.impl.vfilter.VerificationFilterImpl;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+
+/**
+ * Extracts all signatures from a given input DataSource.
+ *
+ * @author wprinz
+ */
+public class ExtractionStage
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(ExtractionStage.class);
+
+ public List extractSignatureHolders(final DataSource dataSource, VerificationFilterParameters parameters) throws PresentableException
+ {
+ if (dataSource instanceof PdfDataSource)
+ {
+ PdfDataSource pdfDataSource = (PdfDataSource) dataSource;
+
+ List blocks = parsePdfIntoBlocks(pdfDataSource);
+
+ VerificationFilter vf = new VerificationFilterImpl();
+ List signatures = vf.extractSignatureHolders(pdfDataSource, blocks, parameters);
+
+ return signatures;
+ }
+
+ if (dataSource instanceof TextDataSource)
+ {
+ TextDataSource textDataSource = (TextDataSource) dataSource;
+
+ VerificationFilter vf = new VerificationFilterImpl();
+ List signatures = vf.extractSignaturHolders(textDataSource, parameters);
+
+ return signatures;
+ }
+
+ String msg = "The input DataSource is neither pdf nor text. class.name = " + dataSource.getClass().getName();
+ log.error(msg);
+ throw new VerificationFilterException(ErrorCode.DOCUMENT_CANNOT_BE_READ, msg);
+ }
+
+ protected List parsePdfIntoBlocks(PdfDataSource pdfDataSource) throws PDFDocumentException
+ {
+ List blocks = IncrementalUpdateParser.parsePdfIntoIUBlocks(pdfDataSource);
+ return blocks;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/input/PdfDataSource.java b/src/main/java/at/gv/egiz/pdfas/framework/input/PdfDataSource.java new file mode 100644 index 0000000..b03a67e --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/input/PdfDataSource.java @@ -0,0 +1,21 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.input;
+
+
+/**
+ * Represents the binary data of a PDF document.
+ *
+ * <p>
+ * This interface allows Pdf data to be handled in an abstract way so that the
+ * storage (byta array, disk etc.) of pdf documents can be separated from the
+ * algorithms.
+ * </p>
+ *
+ * @author wprinz
+ */
+public interface PdfDataSource extends DataSource
+{
+ // jsut a marker interface
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/input/TextDataSource.java b/src/main/java/at/gv/egiz/pdfas/framework/input/TextDataSource.java new file mode 100644 index 0000000..c5fd4b1 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/input/TextDataSource.java @@ -0,0 +1,19 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.input;
+
+/**
+ * Represents a free-text input text to be processed.
+ *
+ * @author wprinz
+ */
+public interface TextDataSource extends DataSource
+{
+ /**
+ * Returns the text to be processed.
+ * @return Returns the text to be processed.
+ */
+ public String getText();
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/output/DataSink.java b/src/main/java/at/gv/egiz/pdfas/framework/output/DataSink.java new file mode 100644 index 0000000..d7d0cc4 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/output/DataSink.java @@ -0,0 +1,15 @@ +package at.gv.egiz.pdfas.framework.output;
+
+import java.io.OutputStream;
+
+/**
+ * Output document data sink.
+ *
+ * @author wprinz
+ */
+public interface DataSink
+{
+ public OutputStream createOutputStream(String mimeType);
+
+ public OutputStream createOutputStream(String mimeType, String characterEncoding);
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SequentialSignatureDevice.java b/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SequentialSignatureDevice.java new file mode 100644 index 0000000..70a28db --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SequentialSignatureDevice.java @@ -0,0 +1,25 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.sigdevice;
+
+/**
+ * A SignatureDevice that can be accessed in a sequential manner.
+ *
+ * <p>
+ * A sequential device handles all necessary steps in sequence. E.g. all the
+ * data is transformed into a http request and sent to a server. The server
+ * processes the request and answers. The response from the server is then
+ * analyzed and returned.
+ * </p>
+ *
+ * @author wprinz
+ */
+public interface SequentialSignatureDevice extends SignatureDevice
+{
+ // This is just a concept how it could be realized in future.
+ public void sign();
+
+ public void verify();
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SignatureDevice.java b/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SignatureDevice.java new file mode 100644 index 0000000..735dd3c --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/sigdevice/SignatureDevice.java @@ -0,0 +1,16 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.sigdevice;
+
+/**
+ * Performs the task of passing the signature XML and data from the application
+ * to an external signature device and return the response in an form that the
+ * application can use.
+ *
+ * @author wprinz
+ */
+public interface SignatureDevice
+{
+ // Marker interface
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/signator/Signator.java b/src/main/java/at/gv/egiz/pdfas/framework/signator/Signator.java new file mode 100644 index 0000000..e77ed08 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/signator/Signator.java @@ -0,0 +1,56 @@ +/**
+ * <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: Signator.java,v 1.1 2006/08/25 17:07:21 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.framework.signator;
+
+import at.gv.egiz.pdfas.exceptions.framework.SignatorException;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.framework.SignResult;
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+
+/**
+ * The basic interface for signator algorithms.
+ *
+ * @author wprinz
+ */
+public interface Signator
+{
+ /**
+ * Returns the PdfASID of this Connector.
+ *
+ * <p>
+ * This should always return the MY_ID static field of the connector. Dont't
+ * forget to override this.
+ * </p>
+ * <p>
+ * Within connector code always use this method so that code reuse through
+ * derivation can take place correctly.
+ * </p>
+ *
+ * @return Returns the PdfASID of this Connector.
+ */
+ public PdfASID getMyId();
+
+
+ public SignatorInformation prepareSign(PdfDataSource pdfDataSource,
+ String profile, TablePos pos, boolean has_SIG_ID) throws SignatorException;
+
+
+ public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException;
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/signator/SignatorInformation.java b/src/main/java/at/gv/egiz/pdfas/framework/signator/SignatorInformation.java new file mode 100644 index 0000000..da81e87 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/signator/SignatorInformation.java @@ -0,0 +1,43 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.signator;
+
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject;
+
+/**
+ * Encapsulates the Signator dependant information that needs to be passed from
+ * prepareSign to finishSign.
+ *
+ * <p>
+ * This supersedes the IncrementalUpdateInformation.
+ * </p>
+ *
+ * @author wprinz
+ */
+public interface SignatorInformation
+{
+ /**
+ * Returns the SignatureData to be signed.
+ * <p>
+ * This is passed on to the Connector and signature device for signing.
+ * </p>
+ *
+ * @return Returns the SignatureData to be signed.
+ */
+ public SignatureData getSignatureData();
+
+ /**
+ * Sets the SignSignatureObject with the signature data.
+ *
+ * <p>
+ * This is called by the framework to provide the finishSign with the
+ * signature data.
+ * </p>
+ *
+ * @param signSignatureObject
+ * The SignSignatureObject.
+ */
+ public void setSignSignatureObject(SignSignatureObject signSignatureObject);
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/verificator/Verificator.java b/src/main/java/at/gv/egiz/pdfas/framework/verificator/Verificator.java new file mode 100644 index 0000000..b134d64 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/verificator/Verificator.java @@ -0,0 +1,53 @@ +/**
+ * <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: Verificator.java,v 1.1 2006/08/25 17:07:21 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.framework.verificator;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+
+
+/**
+ * Given an Incremental Update Block and the corresponding PDF, a verificator
+ * extracts all Signatures of its type and returns them as valitatable
+ * SignatureHolders.
+ *
+ * @author wprinz
+ */
+public interface Verificator
+{
+ /**
+ * Parses the given document/Block for signatures of this type.
+ *
+ * @param pdf
+ * The whole pdf document. A Verificator must only access the
+ * document up to its given block (block.next_index) and must not
+ * modify any byte in the pdf array.
+ * @param block
+ * The incremental update block.
+ * @param start_of_whole_block
+ * The start of the incremental update block (the end of the previous
+ * block) - If 0, this is the first block (the original Document).
+ * @return Returns the List of SignatureHolder objects found for this block.
+ */
+ public List parseBlock(PdfDataSource pdfDataSource, byte [] pdf, final FooterParseResult block,
+ int start_of_whole_block) throws PresentableException;
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilter.java b/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilter.java new file mode 100644 index 0000000..1633b09 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilter.java @@ -0,0 +1,52 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.vfilter;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.exceptions.framework.VerificationFilterException;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+
+/**
+ * Extracts all signatures from a given PDF document or text.
+ *
+ * @see VerificationFilterParameters
+ *
+ * @author wprinz
+ */
+public interface VerificationFilter
+{
+
+ /**
+ * Extracts the signatures from the given PDF.
+ *
+ * @param pdf
+ * The PDF.
+ * @param blocks
+ * The List of Incremental Update blocks. Usually this comes from a
+ * preprocessing step.
+ * @param parameters
+ * The algorithm parameters.
+ * @return Returns a List of SignatureHolders containing the signatures. May
+ * be empty in case no signatures have been found.
+ * @throws VerificationFilterException
+ * Thrown if something goes wrong.
+ */
+ public List extractSignatureHolders(PdfDataSource pdf, List blocks, VerificationFilterParameters parameters) throws VerificationFilterException;
+
+ /**
+ * Extracts the text signatures from the given free-text.
+ *
+ * @param text
+ * The free-text.
+ * @param parameters
+ * The algorithm parameters.
+ * @return Returns a List of SignatureHolders containing the signatures. May
+ * be empty in case no signatures have been found.
+ * @throws VerificationFilterException
+ * Thrown if something goes wrong.
+ */
+ public List extractSignaturHolders(TextDataSource text, VerificationFilterParameters parameters) throws VerificationFilterException;
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilterParameters.java b/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilterParameters.java new file mode 100644 index 0000000..c518fef --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/framework/vfilter/VerificationFilterParameters.java @@ -0,0 +1,76 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.framework.vfilter;
+
+/**
+ * The parameters of the VerificationFilter algorithm.
+ *
+ * @author wprinz
+ */
+public interface VerificationFilterParameters
+{
+
+ /**
+ * Tells the VerificationFilter to extract binary signatures only.
+ *
+ * <p>
+ * Not scanning for textual signatures allows the algorithm to skip text
+ * extraction and signature extraction, which are both time and memory
+ * intensive processes.
+ * </p>
+ *
+ * @return Returns true if the VerificationFilter should extract binary
+ * signatures only.
+ */
+ public boolean extractBinarySignaturesOnly();
+
+ /**
+ * Tells the VerificationFilter to assume that there are only singatures (and
+ * their Incremental Update blocks) younger than the original document.
+ *
+ * <p>
+ * This is equivalent to saying that the document was not updated using an
+ * Incremental update block other than a signature after being singed. The
+ * incremental update blocks after the original document contain only
+ * signatures (either text or binary).
+ * </p>
+ * <p>
+ * This is equivalent to saying that there exists no Incremental Update block
+ * that would render a text signature before it invalid.
+ * </p>
+ * <p>
+ * Under this assumption, the process of finding all text signatures
+ * simplifies to one text extraction of the whole document and one signature
+ * extraction. This is of course a massive performance gain.
+ * </p>
+ * <p>
+ * Actually the algorithm performs a text extraction of the whole document not
+ * including trailing binary signature Incremental Update blocks. This means
+ * that if a the last n Incremental Update blocks of a document are binary,
+ * there is no use extract text from them.
+ * </p>
+ * <p>
+ * Note that if there are Incremental Update blocks with text after a
+ * signature thus this assumption does not hold the signatures older than this
+ * block will break.
+ * </p>
+ *
+ * @return Returns true if the Verification filter should assume that there
+ * are only signature blocks after the original document.
+ */
+ public boolean assumeOnlySignatureUpdateBlocks();
+
+ /**
+ * Tells the VerificationFilter so scan for old signatures in the rest text.
+ *
+ * <p>
+ * The rest text is the text of the oldest text signature or the original
+ * document text if there is no text signature.
+ * </p>
+ *
+ * @return Returns true if the VerificationFilter should scan for old text
+ * signatures in the rest text.
+ */
+ public boolean scanForOldSignatures();
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/ByteArrayPdfDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/ByteArrayPdfDataSourceImpl.java new file mode 100644 index 0000000..0d27781 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/ByteArrayPdfDataSourceImpl.java @@ -0,0 +1,56 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.performance.PerformanceCounters;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+/**
+ * Implements a PdfDataSource that holds the whole PDF document in a byte array.
+ *
+ * <p>
+ * Note that holding the data in a byte array is very memory consuming for large
+ * documents.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class ByteArrayPdfDataSourceImpl implements PdfDataSource
+{
+ protected byte[] pdf = null;
+
+ protected int length = -1;
+
+ public ByteArrayPdfDataSourceImpl(byte[] pdf)
+ {
+ PerformanceCounters.byteArrays.increment();
+
+ this.pdf = pdf;
+ this.length = pdf.length;
+ }
+
+ public ByteArrayPdfDataSourceImpl(byte[] pdf, int length)
+ {
+ PerformanceCounters.byteArrays.increment();
+
+ this.pdf = pdf;
+ this.length = length;
+ }
+
+
+ public InputStream createInputStream()
+ {
+ ByteArrayInputStream bais = new ByteArrayInputStream(this.pdf, 0, this.length);
+ return bais;
+ }
+
+ public int getLength()
+ {
+ return this.length;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java new file mode 100644 index 0000000..f77d6be --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/CompoundPdfDataSourceImpl.java @@ -0,0 +1,47 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.SequenceInputStream;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class CompoundPdfDataSourceImpl implements PdfDataSource
+{
+ protected DataSource originalDataSource = null;
+
+ protected byte[] appendix = null;
+
+ public CompoundPdfDataSourceImpl (PdfDataSource original, byte [] appendix)
+ {
+ this.originalDataSource = original;
+ this.appendix = appendix;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ ByteArrayInputStream bais = new ByteArrayInputStream(this.appendix);
+ SequenceInputStream sis = new SequenceInputStream(this.originalDataSource.createInputStream(), bais);
+ return sis;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength()
+ */
+ public int getLength()
+ {
+ return this.originalDataSource.getLength() + this.appendix.length;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedInputStream.java b/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedInputStream.java new file mode 100644 index 0000000..4be9ec5 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedInputStream.java @@ -0,0 +1,105 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * An input stream that has a delimited length.
+ *
+ * @author wprinz
+ */
+public class DelimitedInputStream extends InputStream
+{
+ /**
+ * The underlying InputStream.
+ */
+ protected InputStream is = null;
+
+ /**
+ * The number of bytes that can be read from the stream.
+ */
+ protected int bytes_to_read = -1;
+
+ /**
+ * Constructs the DelimitedInputStream from which a maximum of length bytes
+ * can be read.
+ */
+ public DelimitedInputStream(InputStream is, int length)
+ {
+ this.is = is;
+ this.bytes_to_read = length;
+ }
+
+ /**
+ * @see java.io.InputStream#read()
+ */
+ public int read() throws IOException
+ {
+ if (this.bytes_to_read <= 0)
+ {
+ return -1;
+ }
+ int read = this.is.read();
+ if (read > 0)
+ {
+ this.bytes_to_read--;
+ }
+ return read;
+ }
+
+ /**
+ * @see java.io.InputStream#read(byte[], int, int)
+ */
+ public int read(byte[] b, int off, int len) throws IOException
+ {
+ int btr = Math.min(len, this.bytes_to_read);
+ int read = this.is.read(b, off, btr);
+ if (read > 0)
+ {
+ this.bytes_to_read -= read;
+ }
+ return read;
+ }
+
+ /**
+ * @see java.io.InputStream#read(byte[])
+ */
+ public int read(byte[] b) throws IOException
+ {
+ return read(b, 0, b.length);
+ }
+
+ /**
+ * @see java.io.InputStream#skip(long)
+ */
+ public long skip(long n) throws IOException
+ {
+ long bts = Math.min(n, this.bytes_to_read);
+ long skipped = this.is.skip(bts);
+ if (skipped > 0)
+ {
+ this.bytes_to_read -= skipped;
+ }
+ return skipped;
+ }
+
+ /**
+ * @see java.io.InputStream#close()
+ */
+ public void close() throws IOException
+ {
+ this.is.close();
+ }
+
+ /**
+ * @see java.io.InputStream#available()
+ */
+ public int available() throws IOException
+ {
+ int avail = this.is.available();
+ return Math.min(this.bytes_to_read, avail);
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedPdfDataSource.java b/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedPdfDataSource.java new file mode 100644 index 0000000..6c67be2 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/DelimitedPdfDataSource.java @@ -0,0 +1,44 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class DelimitedPdfDataSource implements PdfDataSource
+{
+
+ protected PdfDataSource dataSource = null;
+ protected int len = -1;
+
+ public DelimitedPdfDataSource (PdfDataSource original, int length)
+ {
+ this.dataSource = original;
+ this.len = length;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ InputStream originalIS = this.dataSource.createInputStream();
+ DelimitedInputStream dis = new DelimitedInputStream(originalIS, this.len);
+ return dis;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength()
+ */
+ public int getLength()
+ {
+ return this.len;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/FileBased.java b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBased.java new file mode 100644 index 0000000..54f8842 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBased.java @@ -0,0 +1,20 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.File;
+
+/**
+ * Interface that reveals the underlying data file.
+ *
+ * @author wprinz
+ */
+public interface FileBased
+{
+ /**
+ * Returns the underlying data file.
+ * @return Returns the underlying data file.
+ */
+ public File getFile();
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java new file mode 100644 index 0000000..8453192 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedPdfDataSourceImpl.java @@ -0,0 +1,103 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class FileBasedPdfDataSourceImpl implements PdfDataSource, FileBased
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(FileBasedPdfDataSourceImpl.class);
+
+ /**
+ * The underlying file.
+ */
+ protected File inputFile = null;
+
+ protected int length = -1;
+
+ /**
+ * Constructor that creates this PdfDataSource backed by a file in the file
+ * system.
+ *
+ * @param file
+ * The input File.
+ * @param length
+ * The length of the InputStream. The is the maximum number of bytes
+ * that can be read from the stream.
+ * @throws IOException
+ * Thrown if the file cannot be read properly.
+ */
+ public FileBasedPdfDataSourceImpl(File file, int length) throws IOException
+ {
+
+ if (!file.exists())
+ {
+ throw new FileNotFoundException("The file '" + file + "' does not exist.");
+ }
+ // for some reason the isFile is not always correct...
+ // if (file.isFile())
+ // {
+ // throw new IOException("The file '" + file + "' is not a normal file.");
+ // }
+ if (!file.canRead())
+ {
+ throw new IOException("The file '" + file + "' cannot be read.");
+ }
+
+ this.inputFile = file;
+ this.length = length;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.input.FileBased#getFile()
+ */
+ public File getFile()
+ {
+ return this.inputFile;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.PdfDataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ try
+ {
+ FileInputStream fis = new FileInputStream(getFile());
+ DelimitedInputStream dis = new DelimitedInputStream(fis, getLength());
+ return dis;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't create InputStream for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.PdfDataSource#getLength()
+ */
+ public int getLength()
+ {
+ return this.length;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java new file mode 100644 index 0000000..6f6c7b4 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/FileBasedTextDataSourceImpl.java @@ -0,0 +1,124 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+
+/**
+ * @author wprinz
+ *
+ */
+public class FileBasedTextDataSourceImpl implements TextDataSource, FileBased
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(FileBasedTextDataSourceImpl.class);
+
+ protected File file = null;
+
+ protected String characterEncoding = null;
+
+ public FileBasedTextDataSourceImpl(File file, String characterEncoding) throws IOException
+ {
+ if (!file.exists())
+ {
+ throw new FileNotFoundException("The file '" + file + "' does not exist.");
+ }
+ if (!file.canRead())
+ {
+ throw new IOException("The file '" + file + "' cannot be read.");
+ }
+
+ this.file = file;
+ this.characterEncoding = characterEncoding;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.input.FileBased#getFile()
+ */
+ public File getFile()
+ {
+ return this.file;
+ }
+
+ /**
+ * Returns the character encoding.
+ *
+ * @return Returns the character encoding.
+ */
+ public String getCharacterEncoding()
+ {
+ return this.characterEncoding;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.TextDataSource#getText()
+ */
+ public String getText()
+ {
+ try
+ {
+ InputStream is = createInputStream();
+ byte[] data = new byte[getLength()];
+ int read = 0;
+ int n = 0;
+ while ((n = is.read(data, read, data.length - read)) > 0)
+ {
+ read += n;
+ }
+ is.close();
+
+ String text = new String(data, getCharacterEncoding());
+
+ data = null;
+
+ return text;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't read text for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ try
+ {
+ FileInputStream fis = new FileInputStream(getFile());
+ return fis;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't create InputStream for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength()
+ */
+ public int getLength()
+ {
+ return (int) getFile().length();
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/IncrementalUpdateParser.java b/src/main/java/at/gv/egiz/pdfas/impl/input/IncrementalUpdateParser.java new file mode 100644 index 0000000..b4c2bef --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/IncrementalUpdateParser.java @@ -0,0 +1,49 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+import at.knowcenter.wag.exactparser.ParseDocument;
+
+/**
+ * Parses the given PDF document into a list of Incremental Update blocks.
+ * @author wprinz
+ */
+public class IncrementalUpdateParser
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(IncrementalUpdateParser.class);
+
+ public static List parsePdfIntoIUBlocks (PdfDataSource pdfDataSource) throws PDFDocumentException
+ {
+ log.trace("parsePdfIntoIUBlocks:");
+
+ List blocks = null;
+ try
+ {
+ byte [] pdf = DataSourceHelper.convertDataSourceToByteArray(pdfDataSource);
+ blocks = ParseDocument.parseDocument(pdf);
+ }
+ catch (Exception e)
+ {
+ log.error("Error while parsing Document into IU blocks.", e);
+ throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);
+ }
+
+ log.trace("parsePdfIntoIUBlocks finished.");
+ return blocks;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/TextDataSourceImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/input/TextDataSourceImpl.java new file mode 100644 index 0000000..b259a3e --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/TextDataSourceImpl.java @@ -0,0 +1,82 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+
+/**
+ * A TextDataSource that keeps the text in memory.
+ *
+ * <p>
+ * Keeping the text in memory is fast as long as the text is short, but may
+ * result in bad memory performance when the text is longer. Use a FileBased
+ * TextDataSource instead if memory is an issue.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class TextDataSourceImpl implements TextDataSource
+{
+ /**
+ * The text.
+ */
+ protected String text = null;
+
+ /**
+ * Constructor that sets the text.
+ *
+ * @param text
+ * The text.
+ */
+ public TextDataSourceImpl(String text)
+ {
+ this.text = text;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.TextDataSource#getText()
+ */
+ public String getText()
+ {
+ return this.text;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#createInputStream()
+ */
+ public InputStream createInputStream()
+ {
+ try
+ {
+ byte[] data = getText().getBytes("UTF-8");
+ // PERF: if memory is an issue (e.g. in web), use a FileBased TextDataSource instead.
+ return new ByteArrayInputStream(data);
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.input.DataSource#getLength()
+ */
+ public int getLength()
+ {
+ try
+ {
+ byte[] data = getText().getBytes("UTF-8");
+ return data.length;
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/input/helper/DataSourceHelper.java b/src/main/java/at/gv/egiz/pdfas/impl/input/helper/DataSourceHelper.java new file mode 100644 index 0000000..1e2ffdc --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/input/helper/DataSourceHelper.java @@ -0,0 +1,92 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.input.helper;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.performance.PerformanceCounters;
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * @author wprinz
+ *
+ */
+public class DataSourceHelper
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(DataSourceHelper.class);
+
+ /**
+ * Converts a PdfDataSource to a byte array.
+ *
+ * <p>
+ * Note that this function is very memory intensive. Use the Streams whereever
+ * possible.
+ * </p>
+ *
+ * @deprecated
+ *
+ * @param pdfDataSource
+ * @return
+ * @throws IOException
+ */
+ public static byte[] convertDataSourceToByteArray(DataSource pdfDataSource)
+ {
+ try
+ {
+ PerformanceCounters.byteArrays.increment();
+
+ byte[] data = new byte[pdfDataSource.getLength()];
+
+ int bytes_written = 0;
+
+ InputStream is = pdfDataSource.createInputStream();
+ int n = 0;
+ while ((n = is.read(data, bytes_written, data.length - bytes_written)) > 0)
+ {
+ bytes_written += n;
+ }
+ is.close();
+
+ assert bytes_written == data.length;
+
+ return data;
+ }
+ catch (IOException e)
+ {
+ log.error(e);
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static void debugDataSourceToFile(DataSource dataSource, File file)
+ {
+ try
+ {
+ InputStream is = dataSource.createInputStream();
+ FileOutputStream fos = new FileOutputStream(file);
+ byte[] data = new byte[2048];
+ int n = -1;
+ while ((n = is.read(data)) > 0)
+ {
+ fos.write(data, 0, n);
+ }
+ is.close();
+ fos.close();
+ }
+ catch (IOException e)
+ {
+ log.error(e);
+ }
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/output/ByteArrayDataSink.java b/src/main/java/at/gv/egiz/pdfas/impl/output/ByteArrayDataSink.java new file mode 100644 index 0000000..f3d1283 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/output/ByteArrayDataSink.java @@ -0,0 +1,83 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.output;
+
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.performance.PerformanceCounters;
+
+/**
+ * @author wprinz
+ *
+ */
+public class ByteArrayDataSink implements DataSink
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(ByteArrayDataSink.class);
+
+ protected String mimeType = null;
+ protected String characterEncoding = null;
+
+ protected ByteArrayOutputStream baos = null;
+
+
+ public ByteArrayDataSink()
+ {
+ PerformanceCounters.byteArrays.increment();
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.output.DataSink#createOutputStream(java.lang.String)
+ */
+ public OutputStream createOutputStream(String mimeType)
+ {
+ return createOutputStream(mimeType, null);
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.output.DataSink#createOutputStream(java.lang.String, java.lang.String)
+ */
+ public OutputStream createOutputStream(String mimeType, String characterEncoding)
+ {
+ if (this.baos != null)
+ {
+ log.warn("An output stream is created twice. The old one will be rendered useless.");
+ }
+ this.baos = new ByteArrayOutputStream(4096);
+ return this.baos;
+ }
+
+ /**
+ * Returns the byte array.
+ * @return Returns the byte array.
+ */
+ public byte [] getByteArray ()
+ {
+ return this.baos.toByteArray();
+ }
+
+ /**
+ * @return the mimeType
+ */
+ public String getMimeType()
+ {
+ return this.mimeType;
+ }
+
+ /**
+ * @return the characterEncoding
+ */
+ public String getCharacterEncoding()
+ {
+ return this.characterEncoding;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/output/FileBasedDataSink.java b/src/main/java/at/gv/egiz/pdfas/impl/output/FileBasedDataSink.java new file mode 100644 index 0000000..4e1e3b7 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/output/FileBasedDataSink.java @@ -0,0 +1,126 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.output;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.impl.input.FileBased;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * @author wprinz
+ *
+ */
+public class FileBasedDataSink implements DataSink, FileBased
+{
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(FileBasedDataSink.class);
+
+ protected String mimeType = null;
+ protected String characterEncoding = null;
+
+ /**
+ * The output file.
+ */
+ protected File outputFile = null;
+
+ /**
+ * Creates a file based PdfDataSink.
+ *
+ * @param file
+ * The file.
+ * @throws IOException
+ * F.e.
+ */
+ public FileBasedDataSink(File file) throws IOException
+ {
+ if (!file.exists())
+ {
+ file.createNewFile();
+ }
+ if (!file.isFile())
+ {
+ throw new IOException("The file '" + file + "' is not a normal file.");
+ }
+ if (!file.canWrite())
+ {
+ throw new IOException("The file '" + file + "' cannot be written.");
+ }
+
+ this.outputFile = file;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.input.FileBased#getFile()
+ */
+ public File getFile()
+ {
+ return this.outputFile;
+ }
+
+
+
+ protected OutputStream createOutputStream()
+ {
+ try
+ {
+ FileOutputStream fos = new FileOutputStream(getFile());
+ return fos;
+ }
+ catch (IOException e)
+ {
+ log.error("Couldn't create OutputStream for file " + getFile() + ". Returning null.");
+ log.error(e);
+
+ return null;
+
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.output.DataSink#createOutputStream(java.lang.String)
+ */
+ public OutputStream createOutputStream(String mimeType)
+ {
+ return createOutputStream(mimeType, null);
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.output.DataSink#createOutputStream(java.lang.String, java.lang.String)
+ */
+ public OutputStream createOutputStream(String mimeType, String characterEncoding)
+ {
+ this.mimeType = mimeType;
+ this.characterEncoding = characterEncoding;
+
+ return createOutputStream();
+ }
+
+ /**
+ * @return the mimeType
+ */
+ public String getMimeType()
+ {
+ return mimeType;
+ }
+
+ /**
+ * @return the characterEncoding
+ */
+ public String getCharacterEncoding()
+ {
+ return characterEncoding;
+ }
+
+
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/IncrementalUpdateHelper.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/IncrementalUpdateHelper.java new file mode 100644 index 0000000..a95cdc6 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/IncrementalUpdateHelper.java @@ -0,0 +1,45 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.signator;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.impl.output.ByteArrayDataSink;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.pdf.BinarySignature;
+import at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation;
+import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction;
+
+import com.lowagie.text.pdf.PdfPTable;
+
+/**
+ * @author wprinz
+ */
+public final class IncrementalUpdateHelper
+{
+ public static IncrementalUpdateInformation writeIncrementalUpdate(PdfDataSource pdfDataSource, PdfPTable pdf_table, PositioningInstruction pi, List variable_field_definitions,
+ List all_field_definitions) throws PresentableException
+ {
+ // PERF: binary sig needs the signed_pdf as byte array
+ ByteArrayDataSink bads = new ByteArrayDataSink();
+ IncrementalUpdateInformation iui = BinarySignature.writeIncrementalUpdate(pdfDataSource, bads, pdf_table, pi, variable_field_definitions, all_field_definitions);
+ iui.signed_pdf = bads.getByteArray();
+ bads = null;
+
+ return iui;
+ }
+
+ public static void writeIncrementalUpdateToDataSink(PdfDataSource pdfDataSource, DataSink dataSink, PdfPTable pdf_table, PositioningInstruction pi) throws PresentableException
+ {
+ writeIncrementalUpdateToDataSink(pdfDataSource, dataSink, pdf_table, pi, null, null);
+ }
+
+ public static void writeIncrementalUpdateToDataSink(PdfDataSource pdfDataSource, DataSink dataSink, PdfPTable pdf_table, PositioningInstruction pi, List variable_field_definitions,
+ List all_field_definitions) throws PresentableException
+ {
+ BinarySignature.writeIncrementalUpdate(pdfDataSource, dataSink, pdf_table, pi, variable_field_definitions, all_field_definitions);
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/SignatorInformationImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/SignatorInformationImpl.java new file mode 100644 index 0000000..d07dc6a --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/SignatorInformationImpl.java @@ -0,0 +1,20 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.signator;
+
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+
+/**
+ * @author wprinz
+ */
+public abstract class SignatorInformationImpl implements SignatorInformation
+{
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#getSignatureData()
+ */
+ public abstract SignatureData getSignatureData();
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java new file mode 100644 index 0000000..916abf4 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignatorInformation.java @@ -0,0 +1,51 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.signator.binary;
+
+import java.util.List;
+
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+
+/**
+ * @author wprinz
+ *
+ */
+public class BinarySignatorInformation implements SignatorInformation
+{
+ protected PdfDataSource originalDocument = null;
+
+ protected byte [] incrementalUpdateBlock = null;
+
+ protected SignatureData signatureData = null;
+
+ protected List replaces = null;
+
+ protected int cert_start = -1;
+ protected int cert_length = -1;
+
+ protected int enc_start = -1;
+ protected int enc_length = -1;
+
+ protected SignSignatureObject signSignatureObject = null;
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#getSignatureData()
+ */
+ public SignatureData getSignatureData()
+ {
+ return this.signatureData;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#setSignSignatureObject(at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject)
+ */
+ public void setSignSignatureObject(SignSignatureObject signSignatureObject)
+ {
+ this.signSignatureObject = signSignatureObject;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java new file mode 100644 index 0000000..6c6ba29 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_0_0.java @@ -0,0 +1,326 @@ +/**
+ * <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.gv.egiz.pdfas.impl.signator.binary;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.gv.egiz.pdfas.exceptions.framework.SignatorException;
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.framework.signator.Signator;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+import at.gv.egiz.pdfas.impl.input.CompoundPdfDataSourceImpl;
+import at.gv.egiz.pdfas.impl.signator.IncrementalUpdateHelper;
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+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.PositioningInstruction;
+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.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl;
+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.egov.egiz.sig.connectors.bku.SignSignatureObjectHelper;
+import at.knowcenter.wag.exactparser.ByteArrayUtils;
+
+import com.lowagie.text.pdf.PdfPTable;
+
+/**
+ * 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);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId()
+ */
+ public PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+ /**
+ * Default constructor.
+ */
+ public BinarySignator_1_0_0()
+ {
+ // Default constructor.
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.Signator#prepareSign(at.gv.egiz.pdfas.framework.input.PdfDataSource,
+ * java.lang.String, at.knowcenter.wag.egov.egiz.pdf.TablePos, boolean)
+ */
+ public SignatorInformation prepareSign(PdfDataSource pdfDataSource, String profile, TablePos pos, boolean has_SIG_ID) throws SignatorException
+ {
+ try
+ {
+ SignatureObject signature_object = PdfAS.createSignatureObjectFromType(profile);
+ signature_object.fillValues((char) BinarySignature.LAYOUT_PLACEHOLDER, has_SIG_ID);
+
+ signature_object.setKZ(getMyId());
+
+ PdfPTable pdf_table = PdfAS.createPdfPTableFromSignatureObject(signature_object);
+
+ PositioningInstruction pi = PdfAS.determineTablePositioning(pos, profile, pdfDataSource, pdf_table);
+
+ 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 = IncrementalUpdateHelper.writeIncrementalUpdate(pdfDataSource, pdf_table, pi, variable_field_definitions, all_field_definitions);
+
+ String temp_string = iui.temp_ir_number + " " + iui.temp_ir_generation + " obj"; //$NON-NLS-1$//$NON-NLS-2$
+ byte[] temp_bytes = temp_string.getBytes("US-ASCII"); //$NON-NLS-1$
+ 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);
+
+ BinarySignatorInformation bsi = compressIUI(iui);
+ return bsi;
+
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ throw new SignatorException(201, e);
+ }
+ catch (PDFDocumentException e)
+ {
+ throw new SignatorException(e.getErrorCode(), e);
+ }
+ catch (PresentableException e)
+ {
+ throw new SignatorException(201, e);
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.Signator#finishSign(at.gv.egiz.pdfas.framework.signator.SignatorInformation,
+ * at.gv.egiz.pdfas.framework.output.DataSink)
+ */
+ public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException
+ {
+ try
+ {
+ IncrementalUpdateInformation iui = uncompressIUI((BinarySignatorInformation) signatorInformation);
+
+ // PERF: need to keep the whole pdf in mem for processing
+
+ // PdfAS.prefixID(iui.signed_signature_object, PdfAS.BINARY_ID);
+ fillReplacesWithValues(iui);
+
+ BinarySignature.replaceCertificate(iui);
+ BinarySignature.replacePlaceholders(iui);
+
+ OutputStream os = dataSink.createOutputStream(PdfAS.PDF_MIME_TYPE);
+ os.write(iui.signed_pdf);
+ os.close();
+
+ //SignResult sign_result = new SignResult(PdfAS.PDF_MIME_TYPE, iui.signed_pdf);
+ //return sign_result;
+ }
+ catch (PDFDocumentException e)
+ {
+ throw new SignatorException(e.getErrorCode(), e);
+ }
+ catch (IOException e)
+ {
+ throw new SignatorException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);
+ }
+ }
+
+ /**
+ * Reads the signature values from the signed signature object and fills the
+ * corresponding value in the Replaces array.
+ *
+ * @param iui
+ * The IncrementalUpdateInformation.
+ */
+ protected void fillReplacesWithValues(IncrementalUpdateInformation iui)
+ {
+ Iterator it = iui.replaces.iterator();
+ while (it.hasNext())
+ {
+ ReplaceInfo ri = (ReplaceInfo) it.next();
+
+ ri.value = SignSignatureObjectHelper.retrieveStringValueFromSignatureObject(iui.signed_signature_object, ri.sfd.field_name);
+ }
+ }
+
+ /**
+ * Forms the SignatureData to be used for signing.
+ *
+ * @param iui
+ * The IncrementalUpdateInformation.
+ * @return Returns the SignatureData to be used for signing.
+ */
+ protected SignatureData formSignatureData(IncrementalUpdateInformation iui)
+ {
+ // String document_text =
+ // BinarySignature.retrieveSignableTextFromData(iui.signed_pdf,
+ // iui.signed_pdf.length); // signed_pdf.length);
+ //
+ // byte[] data;
+ // try
+ // {
+ // data = document_text.getBytes("UTF-8"); //$NON-NLS-1$
+ // }
+ // catch (UnsupportedEncodingException e)
+ // {
+ // throw new RuntimeException("Very strange: UTF-8 character encoding not
+ // supported.", e); //$NON-NLS-1$
+ // }
+ DataSource ds = new CompoundPdfDataSourceImpl(iui.original_document, iui.sign_iui_block);
+ SignatureData signature_data = new SignatureDataImpl(ds, PdfAS.PDF_MIME_TYPE);
+
+ return signature_data;
+ }
+
+ protected BinarySignatorInformation compressIUI(IncrementalUpdateInformation iui)
+ {
+ iui.sign_iui_block = new byte[iui.signed_pdf.length - iui.original_document.getLength()];
+ System.arraycopy(iui.signed_pdf, iui.original_document.getLength(), iui.sign_iui_block, 0, iui.sign_iui_block.length);
+
+ iui.signature_data = formSignatureData(iui);
+
+ // remove the signed pdf from memory
+ iui.signed_pdf = null;
+
+ BinarySignatorInformation bsi = new BinarySignatorInformation();
+ bsi.originalDocument = iui.original_document;
+ bsi.incrementalUpdateBlock = iui.sign_iui_block;
+ bsi.signatureData = iui.signature_data;
+ bsi.replaces = iui.replaces;
+ bsi.cert_start = iui.cert_start;
+ bsi.cert_length = iui.cert_length;
+ bsi.enc_start = iui.enc_start;
+ bsi.enc_length = iui.enc_length;
+
+ return bsi;
+ }
+
+ protected IncrementalUpdateInformation uncompressIUI(BinarySignatorInformation bsi)
+ {
+ IncrementalUpdateInformation iui = new IncrementalUpdateInformation();
+
+ iui.original_document = bsi.originalDocument;
+ iui.sign_iui_block = bsi.incrementalUpdateBlock;
+ iui.signature_data = bsi.signatureData;
+ iui.replaces = bsi.replaces;
+ iui.cert_start = bsi.cert_start;
+ iui.cert_length = bsi.cert_length;
+ iui.enc_start = bsi.enc_start;
+ iui.enc_length = bsi.enc_length;
+
+ iui.signed_signature_object = bsi.signSignatureObject;
+
+ restoreSignedPdf(iui);
+
+ return iui;
+ }
+
+ protected void restoreSignedPdf(IncrementalUpdateInformation iui)
+ {
+ iui.signed_pdf = new byte[iui.original_document.getLength() + iui.sign_iui_block.length];
+
+ try
+ {
+ InputStream is = iui.original_document.createInputStream();
+ is.read(iui.signed_pdf, 0, iui.original_document.getLength());
+ is.close();
+ }
+ catch (IOException e)
+ {
+ throw new RuntimeException(e);
+ }
+
+ System.arraycopy(iui.sign_iui_block, 0, iui.signed_pdf, iui.original_document.getLength(), iui.sign_iui_block.length);
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java new file mode 100644 index 0000000..7ab62fc --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/binary/BinarySignator_1_1_0.java @@ -0,0 +1,69 @@ +/**
+ * <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.gv.egiz.pdfas.impl.signator.binary;
+
+import at.gv.egiz.pdfas.impl.input.CompoundPdfDataSourceImpl;
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation;
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl;
+
+/**
+ * Signs the document binary.
+ *
+ * <p>
+ * This just differs from version 1.0.0 in the fact that the signature data is
+ * the actual binary PDF instead of a Base64 encoding.
+ * </p>
+ *
+ * @see BinarySignator_1_0_0
+ *
+ * @author wprinz
+ */
+public class BinarySignator_1_1_0 extends BinarySignator_1_0_0
+{
+ /**
+ * The Pdf-AS ID of this Signator.
+ */
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_1_0);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId()
+ */
+ public PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+ /**
+ * Overrides the SignatureData generation of the BinarySignator 1.0.0 so that
+ * the SignatureData is the actual binary PDF instead of a Base64 encoding.
+ *
+ * @see at.knowcenter.wag.egov.egiz.framework.signators.BinarySignator_1_0_0#formSignatureData(at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation)
+ */
+ protected SignatureData formSignatureData(IncrementalUpdateInformation iui)
+ {
+ DataSource ds = new CompoundPdfDataSourceImpl(iui.original_document, iui.sign_iui_block);
+ SignatureData signature_data = new SignatureDataImpl(ds, PdfAS.PDF_MIME_TYPE);
+
+ return signature_data;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/detached/DetachedTextualSignator_1_0_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/detached/DetachedTextualSignator_1_0_0.java new file mode 100644 index 0000000..6a242b6 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/detached/DetachedTextualSignator_1_0_0.java @@ -0,0 +1,142 @@ +/**
+ * <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: TextualSignator_1_0_0.java,v 1.3 2006/10/31 08:07:50 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.impl.signator.detached;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.gv.egiz.pdfas.exceptions.framework.SignatorException;
+import at.gv.egiz.pdfas.framework.SignatorFactory;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+import at.gv.egiz.pdfas.impl.signator.textual.TextualSignatorInformation;
+import at.gv.egiz.pdfas.impl.signator.textual.TextualSignator_1_0_0;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.BKUPostConnection;
+
+/**
+ * Signs a document textually.
+ *
+ * <p>
+ * In prepareSign, the document text is extracted and normalized.
+ * </p>
+ * <p>
+ * In finishSign, the signed SignatureObject is transformed into a Signature
+ * block, which is then written as an Incremental Update.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class DetachedTextualSignator_1_0_0 extends TextualSignator_1_0_0
+{
+ /**
+ * The Mime Type.
+ */
+ public static final String MIME_TYPE = "text/xml"; //$NON-NLS-1$
+
+ /**
+ * The Pdf-AS ID of this Signator.
+ */
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_DETACHED_TEXTUAL, SignatorFactory.VERSION_1_0_0);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId()
+ */
+ public PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+ // /**
+ // * <p>
+ // * The parameter has_SIG_ID is not used by this Signator because it doesn't
+ // * pre-format the signature block.
+ // * </p>
+ // *
+ // * @see at.knowcenter.wag.egov.egiz.framework.Signator#prepareSign(byte[],
+ // * String, TablePos, boolean)
+ // */
+ // public IncrementalUpdateInformation prepareSign(PdfDataSource pdf,
+ // String signature_type, TablePos pos, boolean has_SIG_ID) throws
+ // PresentableException
+ // {
+ // IncrementalUpdateInformation iui = new IncrementalUpdateInformation();
+ // iui.original_document = pdf;
+ // iui.signature_type = signature_type;
+ // iui.pos = pos;
+ //
+ // String document_text =
+ // PdfAS.extractNormalizedTextTextual(pdf.createInputStream());
+ // // logger_.debug("signed_text = " + document_text);
+ //
+ // DataSource ds = new TextDataSourceImpl(document_text);
+ // iui.signature_data = new SignatureDataImpl(ds, MIME_TYPE, "UTF-8");
+ // //$NON-NLS-1$ //$NON-NLS-2$
+ //
+ // return iui;
+ // }
+ //
+ // /**
+ // * @see
+ // at.knowcenter.wag.egov.egiz.framework.Signator#finishSign(at.knowcenter.wag.egov.egiz.pdf.IncrementalUpdateInformation)
+ // */
+ // public SignResult finishSign(IncrementalUpdateInformation iui) throws
+ // PresentableException
+ // {
+ // try
+ // {
+ // String response =
+ // iui.signed_signature_object.response_properties.getProperty(BKUPostConnection.RESPONSE_STRING_KEY);
+ // byte[] response_bytes = response.getBytes("UTF-8"); //$NON-NLS-1$
+ //
+ // SignResult sign_result = new SignResult(MIME_TYPE, response_bytes);
+ // return sign_result;
+ // }
+ // catch (UnsupportedEncodingException e)
+ // {
+ // e.printStackTrace();
+ // throw new PDFDocumentException(300, e);
+ // }
+ // }
+
+ /**
+ * @see at.gv.egiz.pdfas.impl.signator.textual.TextualSignator_1_0_0#finishSign(at.gv.egiz.pdfas.framework.signator.SignatorInformation,
+ * at.gv.egiz.pdfas.framework.output.DataSink)
+ */
+ public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException
+ {
+ try
+ {
+ TextualSignatorInformation tsi = (TextualSignatorInformation) signatorInformation;
+
+ String response = tsi.signSignatureObject.response_properties.getProperty(BKUPostConnection.RESPONSE_STRING_KEY);
+
+ OutputStream os = dataSink.createOutputStream(MIME_TYPE, "UTF-8");
+ OutputStreamWriter osw = new OutputStreamWriter(os);
+ osw.write(response);
+ osw.close();
+ }
+ catch (IOException e)
+ {
+ throw new SignatorException(ErrorCode.SIGNATURE_COULDNT_BE_CREATED, e);
+ }
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignatorInformation.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignatorInformation.java new file mode 100644 index 0000000..c5b18ff --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignatorInformation.java @@ -0,0 +1,45 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.signator.textual;
+
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+
+/**
+ * @author wprinz
+ *
+ */
+public class TextualSignatorInformation implements SignatorInformation
+{
+ protected PdfDataSource originalDocument = null;
+
+ protected SignatureData signatureData = null;
+
+ protected String profile = null;
+
+ protected TablePos pos = null;
+
+ public SignSignatureObject signSignatureObject = null;
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#getSignatureData()
+ */
+ public SignatureData getSignatureData()
+ {
+ return this.signatureData;
+ }
+
+ /**
+ *
+ * @see at.gv.egiz.pdfas.framework.signator.SignatorInformation#setSignSignatureObject(at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject)
+ */
+ public void setSignSignatureObject(SignSignatureObject signSignatureObject)
+ {
+ this.signSignatureObject = signSignatureObject;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_0_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_0_0.java new file mode 100644 index 0000000..b0494c8 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_0_0.java @@ -0,0 +1,149 @@ +/**
+ * <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: TextualSignator_1_0_0.java,v 1.3 2006/10/31 08:07:50 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.impl.signator.textual;
+
+import at.gv.egiz.pdfas.exceptions.framework.SignatorException;
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.framework.signator.Signator;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+import at.gv.egiz.pdfas.impl.input.TextDataSourceImpl;
+import at.gv.egiz.pdfas.impl.signator.IncrementalUpdateHelper;
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.pdf.PositioningInstruction;
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+import at.knowcenter.wag.egov.egiz.sig.SignatureDataImpl;
+import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
+import at.knowcenter.wag.egov.egiz.sig.signatureobject.SignatureObjectHelper;
+
+import com.lowagie.text.pdf.PdfPTable;
+
+/**
+ * Signs a document textually.
+ *
+ * <p>
+ * In prepareSign, the document text is extracted and normalized.
+ * </p>
+ * <p>
+ * In finishSign, the signed SignatureObject is transformed into a Signature
+ * block, which is then written as an Incremental Update.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class TextualSignator_1_0_0 implements Signator
+{
+ /**
+ * The Pdf-AS ID of this Signator.
+ */
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_TEXTUAL, SignatorFactory.VERSION_1_0_0);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId()
+ */
+ public PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+ /**
+ * Default constructor.
+ */
+ public TextualSignator_1_0_0()
+ {
+ // Default constructor.
+ }
+
+ /**
+ * <p>
+ * The parameter has_SIG_ID is not used by this Signator because it doesn't
+ * pre-format the signature block.
+ * </p>
+ *
+ * @see at.gv.egiz.pdfas.framework.signator.Signator#prepareSign(at.gv.egiz.pdfas.framework.input.PdfDataSource,
+ * java.lang.String, at.knowcenter.wag.egov.egiz.pdf.TablePos, boolean)
+ */
+ public SignatorInformation prepareSign(PdfDataSource pdfDataSource, String profile, TablePos pos, boolean has_SIG_ID) throws SignatorException
+ {
+ try
+ {
+ TextualSignatorInformation tsi = new TextualSignatorInformation();
+ tsi.originalDocument = pdfDataSource;
+ tsi.profile = profile;
+ tsi.pos = pos;
+
+ String document_text = PdfAS.extractNormalizedTextTextual(pdfDataSource.createInputStream());
+ // logger_.debug("signed_text = " + document_text);
+
+ DataSource ds = new TextDataSourceImpl(document_text);
+ tsi.signatureData = new SignatureDataImpl(ds, "text/plain", "UTF-8");
+
+ return tsi;
+ }
+ catch (PresentableException pe)
+ {
+ throw new SignatorException(pe);
+ }
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.signator.Signator#finishSign(at.gv.egiz.pdfas.framework.signator.SignatorInformation,
+ * at.gv.egiz.pdfas.framework.output.DataSink)
+ */
+ public void finishSign(SignatorInformation signatorInformation, DataSink dataSink) throws SignatorException
+ {
+ try
+ {
+ TextualSignatorInformation tsi = (TextualSignatorInformation) signatorInformation;
+
+ // PdfAS.prefixID(iui.signed_signature_object, PdfAS.TEXT_ID);
+
+ // iui.signed_signature_object.kz = getMyId().toString();
+ tsi.signSignatureObject.kz = getMyId().toString();
+ // TODO what is this for?
+
+ SignatureObject so = SignatureObjectHelper.convertSignSignatureObjectToSignatureObject(tsi.signSignatureObject, tsi.profile);
+
+ PdfPTable pdf_table = PdfAS.createPdfPTableFromSignatureObject(so);
+
+ PositioningInstruction pi = PdfAS.determineTablePositioning(tsi.pos, tsi.profile, tsi.originalDocument, pdf_table);
+
+ IncrementalUpdateHelper.writeIncrementalUpdateToDataSink(tsi.originalDocument, dataSink, pdf_table, pi);
+
+// OutputStream os = dataSink.createOutputStream(PdfAS.PDF_MIME_TYPE);
+// os.write(signed_iui.signed_pdf);
+// os.close();
+
+// SignResult sign_result = new SignResult(PdfAS.PDF_MIME_TYPE, signed_iui.signed_pdf);
+// return sign_result;
+ }
+ catch (PresentableException pe)
+ {
+ throw new SignatorException(pe);
+ }
+// catch (IOException e)
+// {
+// throw new SignatorException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e);
+// }
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_1_0.java b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_1_0.java new file mode 100644 index 0000000..68cd3a1 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/signator/textual/TextualSignator_1_1_0.java @@ -0,0 +1,45 @@ +/**
+ * <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: TextualSignator_1_0_0.java,v 1.3 2006/10/31 08:07:50 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.impl.signator.textual;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+
+/**
+ * Signs a document textually.
+ *
+ * @see TextualSignator_1_0_0
+ *
+ * @author wprinz
+ */
+public class TextualSignator_1_1_0 extends TextualSignator_1_0_0
+{
+ /**
+ * The Pdf-AS ID of this Signator.
+ */
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_TEXTUAL, SignatorFactory.VERSION_1_1_0);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.Signator#getMyId()
+ */
+ public PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_0_0.java b/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_0_0.java new file mode 100644 index 0000000..b52e97f --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_0_0.java @@ -0,0 +1,399 @@ +/**
+ * <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: BinaryVerificator_1_0_0.java,v 1.3 2006/10/11 08:03:22 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.impl.verificator.binary;
+
+import java.io.ByteArrayOutputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.verificator.Verificator;
+import at.gv.egiz.pdfas.impl.input.ByteArrayPdfDataSourceImpl;
+import at.gv.egiz.pdfas.impl.input.CompoundPdfDataSourceImpl;
+import at.gv.egiz.pdfas.impl.input.DelimitedPdfDataSource;
+import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
+
+import org.apache.log4j.Logger;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger;
+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.SignatorFactory;
+import at.knowcenter.wag.egov.egiz.framework.VerificationFilter;
+import at.knowcenter.wag.egov.egiz.pdf.BinaryBlockInfo;
+import at.knowcenter.wag.egov.egiz.pdf.BinarySignature;
+import at.knowcenter.wag.egov.egiz.pdf.BinarySignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.Placeholder;
+import at.knowcenter.wag.egov.egiz.pdf.ReplaceInfo;
+import at.knowcenter.wag.egov.egiz.pdf.StringInfo;
+import at.knowcenter.wag.egov.egiz.sig.SignatureObject;
+import at.knowcenter.wag.egov.egiz.sig.SignatureTypes;
+import at.knowcenter.wag.exactparser.parsing.IndirectObjectReference;
+import at.knowcenter.wag.exactparser.parsing.PDFUtils;
+import at.knowcenter.wag.exactparser.parsing.results.ArrayParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.DictionaryParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.IndirectObjectReferenceParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.LiteralStringParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.NameParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.NumberParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.ObjectParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.ParseResult;
+
+/**
+ * The BinaryVerificator parses the EGIT Dictionary and extracts the signature
+ * holder from it.
+ *
+ * @author wprinz
+ */
+public class BinaryVerificator_1_0_0 implements Verificator
+{
+ /**
+ * The Pdf-AS ID of this Verificator.
+ */
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_0_0);
+
+ /**
+ * Use this to override the MY_ID field.
+ *
+ * @return Returns the Id of this Verificator.
+ */
+ protected PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+
+ /**
+ * The /ODS key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_ODS_NAME = new byte[] { 'O', 'D', 'S' };
+
+ /**
+ * The /ID key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_KZ_NAME = VerificationFilter.EGIZ_KZ_NAME;
+
+ /**
+ * The /ByteRange key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_BYTE_RANGE_NAME = new byte[] { 'B', 'y', 't', 'e', 'R', 'a', 'n', 'g', 'e' };
+
+ /**
+ * The /replaces key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_REPLACES_NAME = new byte[] { 'r', 'e', 'p', 'l', 'a', 'c', 'e', 's' };
+
+ /**
+ * The /encodings key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_ENCODINGS_NAME = new byte[] { 'e', 'n', 'c', 'o', 'd', 'i', 'n', 'g', 's' };
+
+ /**
+ * The /Cert key in the EGIZ Dict.
+ */
+ public static final byte[] EGIZ_CERT_NAME = new byte[] { 'C', 'e', 'r', 't' };
+
+ /**
+ * The logger definition.
+ */
+ private static final Logger logger_ = ConfigLogger.getLogger(BinaryVerificator_1_0_0.class);
+
+ /**
+ * Default constructor.
+ */
+ public BinaryVerificator_1_0_0()
+ {
+ // Default constructor.
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.verificator.Verificator#parseBlock(at.gv.egiz.pdfas.framework.input.PdfDataSource,
+ * byte[],
+ * at.knowcenter.wag.exactparser.parsing.results.FooterParseResult, int)
+ */
+ public List parseBlock(PdfDataSource pdfDataSource, byte [] pdf, FooterParseResult block, int start_of_whole_block) throws PresentableException
+ {
+ // PERF: BinaryVerificator needs byte array.
+
+ int egiz_index = PDFUtils.indexOfName(pdf, block.tpr.dpr.names, VerificationFilter.EGIZ_DICT_NAME);
+ if (egiz_index < 0)
+ {
+ throw new PDFDocumentException(ErrorCode.COULDNT_VERIFY, "egiz_index = " + egiz_index);
+ }
+
+ IndirectObjectReferenceParseResult egiz_dict_iorpr = (IndirectObjectReferenceParseResult) block.tpr.dpr.values.get(egiz_index);
+
+ IndirectObjectReference ior = egiz_dict_iorpr.ior;
+
+ final int egiz_dict_offset = PDFUtils.getObjectOffsetFromXRefByIndirectObjectReference(block.xpr, ior);
+
+ ObjectParseResult obj = PDFUtils.parseObject(pdf, egiz_dict_offset);
+ DictionaryParseResult egiz_dict = (DictionaryParseResult) obj.object;
+
+ NumberParseResult ods_npr = (NumberParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_ODS_NAME);
+
+ ArrayParseResult kz_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_KZ_NAME);
+ PdfASID kz = null;
+ String kz_string = VerificationFilter.restoreKZ(pdf, kz_apr);
+ kz = new PdfASID(kz_string);
+ if (!kz_string.equals(getMyId().toString()))
+ {
+ logger_.warn("Warning: Kennzeichnung not recognized:" + kz_string);
+ }
+
+ ArrayParseResult byte_ranges_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_BYTE_RANGE_NAME);
+
+ ArrayParseResult replaces_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_REPLACES_NAME);
+
+ ArrayParseResult encodings_apr = (ArrayParseResult) getRequiredValueOfKey(pdf, egiz_dict, EGIZ_ENCODINGS_NAME);
+
+ ArrayParseResult cert_apr = (ArrayParseResult) getValueOfKey(pdf, egiz_dict, EGIZ_CERT_NAME);
+ byte[] cert = null;
+ if (cert_apr != null && !cert_apr.elements.isEmpty())
+ {
+ LiteralStringParseResult lspr = (LiteralStringParseResult) cert_apr.elements.get(0);
+ int str_length = lspr.content_end_index - lspr.content_start_index;
+ byte[] encoded = new byte[str_length];
+ System.arraycopy(pdf, lspr.content_start_index, encoded, 0, encoded.length);
+
+ cert = Placeholder.unescapePDFString(encoded);
+ }
+
+ int num_byte_ranges = byte_ranges_apr.elements.size() / 2;
+ List byte_ranges = new ArrayList();
+ for (int i = 0; i < num_byte_ranges; i++)
+ {
+ NumberParseResult start_npr = (NumberParseResult) byte_ranges_apr.elements.get(2 * i);
+ NumberParseResult length_npr = (NumberParseResult) byte_ranges_apr.elements.get(2 * i + 1);
+
+ StringInfo si = new StringInfo();
+ si.string_start = start_npr.number;
+ si.string_length = length_npr.number;
+ byte_ranges.add(si);
+ }
+
+ StringInfo sis[] = new StringInfo[num_byte_ranges - 1];
+ for (int i = 0; i < num_byte_ranges - 1; i++)
+ {
+ StringInfo prev = (StringInfo) byte_ranges.get(i);
+ StringInfo next = (StringInfo) byte_ranges.get(i + 1);
+
+ StringInfo hole = new StringInfo();
+ hole.string_start = prev.string_start + prev.string_length;
+ hole.string_length = next.string_start - hole.string_start;
+
+ sis[i] = hole;
+ }
+
+ int n = replaces_apr.elements.size();
+ byte[][] brevs = new byte[n][];
+ for (int i = 0; i < n; i++)
+ {
+ NameParseResult lspr = (NameParseResult) replaces_apr.elements.get(i);
+
+ byte[] brev = new byte[3];
+ System.arraycopy(pdf, lspr.name_start_index, brev, 0, brev.length);
+
+ brevs[i] = brev; // SignatureTypes.convertBrevToType(brev);
+ }
+
+ n = encodings_apr.elements.size();
+ byte[][] encodings = new byte[n][];
+ for (int i = 0; i < n; i++)
+ {
+ NameParseResult lspr = (NameParseResult) encodings_apr.elements.get(i);
+
+ byte[] enc = new byte[3];
+ System.arraycopy(pdf, lspr.name_start_index, enc, 0, enc.length);
+ encodings[i] = enc;
+ }
+
+ BinaryBlockInfo bbi = new BinaryBlockInfo();
+ bbi.replaces = BinarySignature.reconstructReplaces(pdf, brevs, sis, encodings);
+ bbi.signed_size = ods_npr.number;
+
+ // BinaryBlockInfo bbi = BinarySignature.retrieveEgizDictInformation(pdf,
+ // ior.object_number, ior.generation_number, egiz_dict_offset);
+
+ // byte[] original_pdf = BinarySignature.restoreEgizDictInformation(pdf,
+ // bbi);
+
+ byte[] signed_pdf = BinarySignature.prepareDataToSign(pdf, byte_ranges);
+ // String signed_text =
+ // BinarySignature.retrieveSignableTextFromData(signed_pdf,
+ // signed_pdf.length); // has been moved into the BinarySignatureHolder
+
+ SignatureObject signature_object = new SignatureObject();
+ String default_type = SettingsReader.getInstance().getValueFromKey(SignatureTypes.DEFAULT_TYPE);
+ signature_object.setSigType(default_type);
+ signature_object.initByType();
+
+ signature_object.setKZ(kz);
+
+ if (cert != null)
+ {
+ try
+ {
+ // ByteArrayInputStream bais = new ByteArrayInputStream(cert);
+ // CertificateFactory cf = CertificateFactory.getInstance("X.509");
+ // X509Certificate certificate = (X509Certificate)
+ // cf.generateCertificate(bais);
+
+ // trim zero bytes. - the base 64 cert must not have zero bytes.
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ for (int i = 0; i < cert.length; i++)
+ {
+ if (cert[i] != 0)
+ {
+ baos.write(cert[i]);
+ }
+ }
+ byte[] b64 = baos.toByteArray();
+
+ signature_object.storeNewCertificateInLocalStore(b64);
+ }
+ catch (Exception e)
+ {
+ e.printStackTrace();
+ }
+
+ }
+
+ Iterator rit = bbi.replaces.iterator();
+ while (rit.hasNext())
+ {
+ ReplaceInfo ri = (ReplaceInfo) rit.next();
+
+ String type = SignatureTypes.convertBrevToType(ri.brev);
+
+ // signature_object.setSigValue(ri.type, ri.value);
+ if (type.equals(SignatureTypes.SIG_DATE))
+ {
+ signature_object.setSignationDate(ri.value);
+ continue;
+ }
+
+ if (type.equals(SignatureTypes.SIG_ISSUER))
+ {
+ signature_object.setSignationIssuer(ri.value);
+ continue;
+ }
+
+ if (type.equals(SignatureTypes.SIG_VALUE))
+ {
+ signature_object.setSignationValue(ri.value);
+ continue;
+ }
+
+ if (type.equals(SignatureTypes.SIG_NUMBER))
+ {
+ signature_object.setSignationSerialNumber(ri.value);
+ continue;
+ }
+
+ if (type.equals(SignatureTypes.SIG_ID))
+ {
+ signature_object.setSignationIDs(ri.value);
+ continue;
+ }
+ }
+
+ int iu_length = signed_pdf.length - start_of_whole_block;
+ byte [] iu_block = new byte [iu_length];
+ System.arraycopy(signed_pdf, start_of_whole_block, iu_block, 0, iu_length);
+
+ DelimitedPdfDataSource dpds = new DelimitedPdfDataSource(pdfDataSource, start_of_whole_block);
+ PdfDataSource ds = new CompoundPdfDataSourceImpl(dpds, iu_block);
+
+ //PdfDataSource dsByteArray = new ByteArrayPdfDataSourceImpl(signed_pdf, signed_pdf.length);
+
+ BinarySignatureHolder signature_holder = new BinarySignatureHolder(ds, signature_object);
+
+ List holders = new ArrayList();
+ holders.add(signature_holder);
+ return holders;
+ }
+
+ /**
+ * Retrieves the value of the key from the dictionary.
+ *
+ * @param pdf
+ * The PDF.
+ * @param egiz_dict
+ * The dictionary.
+ * @param name
+ * The name of the key.
+ * @return Returns the value of the key. An exception is thrown if the key
+ * doesn't exist.
+ * @throws PDFDocumentException
+ * Thrown, if the key doesn't exist in the dictionary.
+ */
+ protected ParseResult getRequiredValueOfKey(byte[] pdf, DictionaryParseResult egiz_dict, byte[] name) throws PDFDocumentException
+ {
+ final int index = PDFUtils.indexOfName(pdf, egiz_dict.names, name);
+ checkIndex(index);
+ ParseResult value = (ParseResult) egiz_dict.values.get(index);
+ return value;
+ }
+
+ /**
+ * Throws an excaption, if the index is lower than 0.
+ *
+ * @param name_index
+ * The index.
+ * @throws PDFDocumentException
+ * Thrown, if the index is lower than 0.
+ */
+ protected void checkIndex(int name_index) throws PDFDocumentException
+ {
+ if (name_index < 0)
+ {
+ throw new PDFDocumentException(ErrorCode.COULDNT_VERIFY, "The name wasn't found in the egiz dict.");
+ }
+ }
+
+ /**
+ * Retrieves the value of the key from the dictionary.
+ *
+ * @param pdf
+ * The PDF.
+ * @param egiz_dict
+ * The dictionary.
+ * @param name
+ * The name of the key.
+ * @return Returns the key's value, or null if the dictionary didn't contain
+ * that key.
+ */
+ protected ParseResult getValueOfKey(byte[] pdf, DictionaryParseResult egiz_dict, byte[] name)
+ {
+ final int index = PDFUtils.indexOfName(pdf, egiz_dict.names, name);
+ if (index < 0)
+ {
+ return null;
+ }
+ ParseResult value = (ParseResult) egiz_dict.values.get(index);
+ return value;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_1_0.java b/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_1_0.java new file mode 100644 index 0000000..a78c4a8 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/verificator/binary/BinaryVerificator_1_1_0.java @@ -0,0 +1,24 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.verificator.binary;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.framework.SignatorFactory;
+
+/**
+ * @author wprinz
+ *
+ */
+public class BinaryVerificator_1_1_0 extends BinaryVerificator_1_0_0
+{
+ public static final PdfASID MY_ID = new PdfASID(SignatorFactory.VENDOR, SignatorFactory.TYPE_BINARY, SignatorFactory.VERSION_1_1_0);
+
+ /**
+ * @see at.knowcenter.wag.egov.egiz.framework.verificators.BinaryVerificator_1_0_0#getMyId()
+ */
+ protected PdfASID getMyId()
+ {
+ return MY_ID;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/Partition.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/Partition.java new file mode 100644 index 0000000..6fe90e5 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/Partition.java @@ -0,0 +1,9 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter;
+
+public interface Partition
+{
+ public boolean isTextPartition();
+}
\ No newline at end of file diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterImpl.java new file mode 100644 index 0000000..981b868 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterImpl.java @@ -0,0 +1,575 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter;
+
+import java.util.ArrayList;
+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.framework.VerificationFilterException;
+import at.gv.egiz.pdfas.framework.SignatureHolderHelper;
+import at.gv.egiz.pdfas.framework.VerificatorFactory;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+import at.gv.egiz.pdfas.framework.verificator.Verificator;
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilter;
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;
+import at.gv.egiz.pdfas.impl.input.DelimitedInputStream;
+import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
+import at.gv.egiz.pdfas.impl.vfilter.helper.VerificationFilterBinaryHelper;
+import at.gv.egiz.pdfas.impl.vfilter.helper.VerificationFilterHelper;
+import at.gv.egiz.pdfas.impl.vfilter.partition.BinaryPartition;
+import at.gv.egiz.pdfas.impl.vfilter.partition.TextPartition;
+import at.knowcenter.wag.egov.egiz.PdfAS;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.NormalizeException;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.exceptions.SignatureException;
+import at.knowcenter.wag.egov.egiz.exceptions.SignatureTypesException;
+import at.knowcenter.wag.egov.egiz.pdf.AbsoluteTextSignature;
+import at.knowcenter.wag.egov.egiz.pdf.EGIZDate;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.TextualSignatureHolder;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+
+/**
+ * @author wprinz
+ */
+public class VerificationFilterImpl implements VerificationFilter
+{
+
+ /**
+ * The log.
+ */
+ private static final Log log = LogFactory.getLog(VerificationFilterImpl.class);
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.vfilter.VerificationFilter#extractSignatureHolders(at.gv.egiz.pdfas.framework.input.PdfDataSource,
+ * java.util.List,
+ * at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters)
+ */
+ public List extractSignatureHolders(final PdfDataSource pdf, List blocks, final VerificationFilterParameters parameters) throws VerificationFilterException
+ {
+ log.trace("extractSignaturHolders:");
+
+ if (log.isDebugEnabled())
+ {
+ log.debug("Original IU blocks: " + blocks.size());
+ debugIUBlocks(blocks);
+ }
+
+ unrollLinearization(blocks);
+
+ if (log.isDebugEnabled())
+ {
+ log.debug("IU blocks without linearization: " + blocks.size());
+ debugIUBlocks(blocks);
+ }
+
+ List signatureHolderChain = null;
+
+ if (parameters.extractBinarySignaturesOnly())
+ {
+ log.debug("Extracting only binary signatures. Binary-only mode.");
+
+ signatureHolderChain = performBinaryOnly(pdf, blocks);
+ }
+ else
+ {
+ List partitions = VerificationFilterHelper.partition(pdf, blocks);
+ if (log.isDebugEnabled())
+ {
+ debugPartitions(partitions);
+ }
+
+ if (parameters.assumeOnlySignatureUpdateBlocks())
+ {
+ log.debug("Assuming that there are only signature Incremental Update blocks. Semi-conservative mode.");
+
+ signatureHolderChain = performSemiConservative(pdf, parameters.scanForOldSignatures(), blocks, partitions);
+ }
+ else
+ {
+ log.debug("Scanning complete document. Conservative mode.");
+
+ signatureHolderChain = performFullConservative(pdf, parameters.scanForOldSignatures(), blocks, partitions);
+ }
+
+ }
+
+ log.trace("extractSignaturHolders finished.");
+ return signatureHolderChain;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.vfilter.VerificationFilter#extractSignaturHolders(at.gv.egiz.pdfas.framework.input.TextDataSource,
+ * at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters)
+ */
+ public List extractSignaturHolders(TextDataSource text, VerificationFilterParameters parameters) throws VerificationFilterException
+ {
+ if (parameters.extractBinarySignaturesOnly())
+ {
+ log
+ .warn("A free text signature extraction was issued although the VerificationFilter was configured to detect only binary signatures (binary-only mode). The result is of course that no signatures can be found.");
+
+ return new ArrayList();
+ }
+
+ String freetext = text.getText();
+ String normalizedText = normalizeText(freetext);
+
+ List foundSignatures = null;
+ if (parameters.scanForOldSignatures())
+ {
+ log.debug("Extracting old and new signatures from text.");
+
+ foundSignatures = extractNewAndOldSignaturesFromText(normalizedText);
+ }
+ else
+ {
+ log.debug("Extracting new signatures from text (not extracting old ones).");
+
+ foundSignatures = extractNewSignaturesFromText(normalizedText);
+ }
+
+ List textOnlySignatures = filterOutBinarySignatures(foundSignatures);
+
+ return textOnlySignatures;
+ }
+
+ protected String normalizeText(String freetext) throws VerificationFilterException
+ {
+ try
+ {
+ return PdfAS.normalizeText(freetext);
+ }
+ catch (NormalizeException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ /**
+ * Removes the linearization footer from the list of update blocks.
+ *
+ * @param blocks
+ * The list of FooterParseResult objects in \prev order.
+ */
+ protected void unrollLinearization(List blocks)
+ {
+ int linearization_index = -1;
+ for (int i = 0; i < blocks.size(); i++)
+ {
+ FooterParseResult bpr = (FooterParseResult) blocks.get(i);
+
+ if (bpr.sxpr.xref_index == 0)
+ {
+ if (linearization_index >= 0)
+ {
+ throw new RuntimeException("There is more than one linearization block! index = " + i);
+ }
+ linearization_index = i;
+ }
+ }
+
+ if (linearization_index >= 0)
+ {
+ // logger_.debug("The document is linearized - unrolling
+ // linearization block " + linearization_index);
+ blocks.remove(linearization_index);
+ }
+ }
+
+ protected List performBinaryOnly(PdfDataSource pdf, List blocks) throws VerificationFilterException
+ {
+ return extractBinarySignaturesOnly(pdf, blocks);
+ }
+
+ protected List performSemiConservative(PdfDataSource pdf, boolean scanForOldSignatures, List blocks, List partitions) throws VerificationFilterException
+ {
+ List binarySignatures = extractBinarySignaturesOnly(pdf, blocks);
+
+ TextPartition lastTextPartition = VerificationFilterHelper.findLastTextPartition(partitions);
+ List extractedSignatures = null;
+ if (scanForOldSignatures)
+ {
+ SignaturesAndOld sao = extractSignaturesFromPartitionAndOld(pdf, lastTextPartition);
+ extractedSignatures = sao.newSignatures;
+ if (sao.oldSignature != null)
+ {
+ extractedSignatures.add(0, sao.oldSignature);
+ }
+ }
+ else
+ {
+ extractedSignatures = extractSignaturesFromPartition(pdf, lastTextPartition);
+ }
+
+ List signatureHolderChain = intermingleSignatures(binarySignatures, extractedSignatures);
+
+ return signatureHolderChain;
+ }
+
+ protected List performFullConservative(PdfDataSource pdf, boolean scanForOldSignatures, List blocks, List partitions) throws VerificationFilterException
+ {
+ List binarySignatures = extractBinarySignaturesOnly(pdf, blocks);
+
+ SignatureHolder oldSignature = null;
+
+ List partitionResults = new ArrayList(partitions.size());
+ for (int i = 0; i < partitions.size(); i++)
+ {
+ Partition p = (Partition) partitions.get(i);
+
+ if (p instanceof TextPartition)
+ {
+ TextPartition tp = (TextPartition) p;
+
+ List partitionResult = null;
+
+ boolean scanThisPartitionForOldSignature = (i == 0) && scanForOldSignatures;
+ if (scanThisPartitionForOldSignature)
+ {
+ SignaturesAndOld sao = extractSignaturesFromPartitionAndOld(pdf, tp);
+ partitionResult = sao.newSignatures;
+ oldSignature = sao.oldSignature;
+ }
+ else
+ {
+ partitionResult = extractSignaturesFromPartition(pdf, tp);
+ }
+
+ partitionResults.add(partitionResult);
+ }
+ }
+
+ List extractedSignatures = new ArrayList();
+ Iterator it = partitionResults.iterator();
+ List prevPartitionResult = null;
+ while (it.hasNext())
+ {
+ List partitionResult = (List) it.next();
+
+ if (prevPartitionResult == null)
+ {
+ extractedSignatures.addAll(partitionResult);
+ }
+ else
+ {
+ assert partitionResult.size() >= prevPartitionResult.size();
+
+ for (int i = prevPartitionResult.size(); i < partitionResult.size(); i++)
+ {
+ SignatureHolder sh = (SignatureHolder) partitionResult.get(i);
+ extractedSignatures.add(sh);
+ }
+ }
+
+ prevPartitionResult = partitionResult;
+ }
+
+ List signatureHolderChain = intermingleSignatures(binarySignatures, extractedSignatures);
+
+ if (oldSignature != null)
+ {
+ signatureHolderChain.add(0, oldSignature);
+ }
+
+ return signatureHolderChain;
+ }
+
+ protected String extractText(PdfDataSource pdf, int endOfDocument) throws PresentableException
+ {
+ DelimitedInputStream dis = new DelimitedInputStream(pdf.createInputStream(), endOfDocument);
+ return PdfAS.extractNormalizedTextTextual(dis);
+ }
+
+ protected List extractNewSignaturesFromText(String text) throws VerificationFilterException
+ {
+ try
+ {
+ return AbsoluteTextSignature.extractSignatureHoldersFromText(text);
+ }
+ catch (PresentableException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ protected List extractNewAndOldSignaturesFromText(String text) throws VerificationFilterException
+ {
+ SignaturesAndOld sao = extractSignaturesAndOld(text);
+ if (sao.oldSignature != null)
+ {
+ sao.newSignatures.add(0, sao.oldSignature);
+ }
+
+ return sao.newSignatures;
+ }
+
+ protected List extractOldSignaturesFromText(String text) throws PresentableException
+ {
+ return PdfAS.extractSignatureHoldersTextual(text, true);
+ }
+
+ protected List intermingleSignatures(List binarySignatures, List extractedSignatures)
+ {
+ List textualSignatures = filterOutBinarySignatures(extractedSignatures);
+
+ List intermingled = new ArrayList(binarySignatures.size() + textualSignatures.size());
+ intermingled.addAll(binarySignatures);
+ intermingled.addAll(textualSignatures);
+
+ sortSignatures(intermingled);
+
+ return intermingled;
+ }
+
+ protected List filterOutBinarySignatures(List signatures)
+ {
+ List textOnly = new ArrayList(signatures.size());
+
+ Iterator it = signatures.iterator();
+ while (it.hasNext())
+ {
+ SignatureHolder sh = (SignatureHolder) it.next();
+ if (sh.getSignatureObject().isTextual())
+ {
+ textOnly.add(sh);
+ }
+ }
+
+ return textOnly;
+ }
+
+ protected void sortSignatures(List signatures)
+ {
+ SignatureHolderHelper.sortByDate(signatures);
+ }
+
+ protected void debugIUBlocks(List blocks)
+ {
+ Iterator it = blocks.iterator();
+ while (it.hasNext())
+ {
+ FooterParseResult fpr = (FooterParseResult) it.next();
+ log.debug("footer: " + fpr.start_index + " to " + fpr.next_index + ", has predecessor = " + fpr.tpr.has_predecessor);
+ }
+ }
+
+ protected void debugPartitions(List partitions)
+ {
+ Iterator it = partitions.iterator();
+ while (it.hasNext())
+ {
+ Object o = it.next();
+ assert o instanceof Partition;
+
+ List blocks = null;
+ if (o instanceof TextPartition)
+ {
+ TextPartition tp = (TextPartition) o;
+
+ blocks = tp.blocks;
+
+ log.debug("text partition with " + tp.blocks.size() + " blocks:");
+ }
+ else
+ {
+ BinaryPartition bp = (BinaryPartition) o;
+
+ blocks = bp.blocks;
+
+ log.debug("binary partition: with " + bp.blocks.size() + " blocks:");
+
+ }
+ debugIUBlocks(blocks);
+ log.debug("partition finished.");
+ }
+ }
+
+ /**
+ * Extracts the binary singatures from the given PDF.
+ *
+ * <p>
+ * IU blocks without an egiz dict are not considered.
+ * </p>
+ *
+ * @param pdf
+ * @param blocks
+ * @return Returns the List of signature holders.
+ * @throws PresentableException
+ */
+ protected List extractBinarySignaturesOnly(PdfDataSource pdf, List blocks) throws VerificationFilterException
+ {
+ try
+ {
+ // PERF: extract binary signatures needs byte array
+ byte[] data = DataSourceHelper.convertDataSourceToByteArray(pdf);
+
+ List binarySignatures = new ArrayList(blocks.size());
+
+ Iterator it = blocks.iterator();
+ int prev_end = 0;
+ while (it.hasNext())
+ {
+ FooterParseResult fpr = (FooterParseResult) it.next();
+ assert fpr.next_index > prev_end;
+
+ if (VerificationFilterBinaryHelper.containsEGIZDict(data, fpr))
+ {
+ PdfASID kz = VerificationFilterBinaryHelper.extractKZFromEGIZBlock(data, fpr);
+
+ Verificator verificator = VerificatorFactory.createBinaryVerificator(kz);
+ List binary_holders = verificator.parseBlock(pdf, data, fpr, prev_end);
+
+ binarySignatures.addAll(binary_holders);
+ }
+
+ prev_end = fpr.next_index;
+ }
+
+ return binarySignatures;
+ }
+ catch (PresentableException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ protected List extractSignatures(PdfDataSource pdf, int endOfDocument) throws VerificationFilterException
+ {
+ try
+ {
+ log.debug("Extracting text from 0 to " + endOfDocument + " (total document size = " + pdf.getLength() + "):");
+ String extractedText = extractText(pdf, endOfDocument);
+ log.debug("Extracting text finished.");
+
+ log.debug("Extracting signatures:");
+ List extractedSignatures = extractNewSignaturesFromText(extractedText);
+ log.debug("Extracting signatures finished.");
+
+ return extractedSignatures;
+ }
+ catch (PresentableException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ protected String determineRestText(List newSignatures, String extractedText)
+ {
+ if (newSignatures.isEmpty())
+ {
+ return extractedText;
+ }
+
+ // note that even if the oldest signature is a binary signature,
+ // the rest text is the text of this binary signature, which was extracted
+ // like a text signature.
+ TextualSignatureHolder oldestSignature = (TextualSignatureHolder) newSignatures.get(0);
+ return oldestSignature.getSignedText();
+ }
+
+ protected List extractSignaturesFromPartition(PdfDataSource pdf, Partition partition) throws VerificationFilterException
+ {
+ assert partition.isTextPartition();
+
+ int endOfDocument = VerificationFilterHelper.getEndOfPartition(partition);
+ return extractSignatures(pdf, endOfDocument);
+ }
+
+ protected SignaturesAndOld extractSignaturesFromPartitionAndOld(PdfDataSource pdf, Partition partition) throws VerificationFilterException
+ {
+ assert partition.isTextPartition();
+
+ try
+ {
+ int endOfDocument = VerificationFilterHelper.getEndOfPartition(partition);
+
+ log.debug("Extracting text from 0 to " + endOfDocument + " (total document size = " + pdf.getLength() + "):");
+ String extractedText = extractText(pdf, endOfDocument);
+ log.debug("Extracting text finished.");
+
+ SignaturesAndOld sao = extractSignaturesAndOld(extractedText);
+
+ return sao;
+ }
+ catch (PresentableException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ protected static class SignaturesAndOld
+ {
+ public List newSignatures = null;
+
+ public SignatureHolder oldSignature = null;
+ }
+
+ protected SignaturesAndOld extractSignaturesAndOld(String text) throws VerificationFilterException
+ {
+ try
+ {
+ log.debug("Extracting signatures:");
+ List extractedSignatures = extractNewSignaturesFromText(text);
+ log.debug("Extracting signatures finished.");
+
+ log.debug("Extracting old signatures:");
+ SignatureHolder oldSignature = extractOldSignature(text, extractedSignatures);
+ log.debug("Extracting old signatures finished.");
+
+ SignaturesAndOld sao = new SignaturesAndOld();
+ sao.newSignatures = extractedSignatures;
+ sao.oldSignature = oldSignature;
+
+ return sao;
+ }
+ catch (PresentableException e)
+ {
+ throw new VerificationFilterException(e);
+ }
+ }
+
+ /**
+ * Extracts the old signature from the text, but only if it is older than the
+ * oldest signature of the new signatueres.
+ *
+ * @param extractedText
+ * @param newSignatures
+ * @return
+ * @throws PDFDocumentException
+ * @throws SignatureException
+ * @throws NormalizeException
+ * @throws SignatureTypesException
+ */
+ protected SignatureHolder extractOldSignature(String extractedText, List newSignatures) throws PDFDocumentException, SignatureException, NormalizeException, SignatureTypesException
+ {
+ SignatureHolder oldSignature = null;
+
+ String restText = determineRestText(newSignatures, extractedText);
+
+ List oldSignatures = PdfAS.extractSignatureHoldersTextual(restText, true);
+ if (!oldSignatures.isEmpty())
+ {
+ oldSignature = (SignatureHolder) oldSignatures.get(0);
+ if (!newSignatures.isEmpty())
+ {
+ SignatureHolder oldestNewSignature = (SignatureHolder) newSignatures.get(0);
+ EGIZDate oldDate = EGIZDate.parseFromString(oldSignature.getSignatureObject().getSignationDate());
+ EGIZDate newDate = EGIZDate.parseFromString(oldestNewSignature.getSignatureObject().getSignationDate());
+ if (newDate.compareTo(oldDate) <= 0)
+ {
+ oldSignature = null;
+ }
+ }
+ }
+ return oldSignature;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterParametersImpl.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterParametersImpl.java new file mode 100644 index 0000000..292e816 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/VerificationFilterParametersImpl.java @@ -0,0 +1,67 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter;
+
+import java.io.Serializable;
+
+import at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters;
+
+/**
+ * @author wprinz
+ *
+ */
+public class VerificationFilterParametersImpl implements VerificationFilterParameters, Serializable
+{
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = -7118403150485416046L;
+
+ protected boolean extractBinarySignaturesOnly = false;
+
+ protected boolean assumeOnlySignatureUpdateBlocks = false;
+
+ protected boolean scanForOldSignatures = true;
+
+ public VerificationFilterParametersImpl(boolean extractBinarySignaturesOnly, boolean assumeOnlySignatureUpdateBlocks, boolean scanForOldSignatures)
+ {
+ this.extractBinarySignaturesOnly = extractBinarySignaturesOnly;
+ this.assumeOnlySignatureUpdateBlocks = assumeOnlySignatureUpdateBlocks;
+ this.scanForOldSignatures = scanForOldSignatures;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters#extractBinarySignaturesOnly()
+ */
+ public boolean extractBinarySignaturesOnly()
+ {
+ return this.extractBinarySignaturesOnly;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters#assumeOnlySignatureUpdateBlocks()
+ */
+ public boolean assumeOnlySignatureUpdateBlocks()
+ {
+ return this.assumeOnlySignatureUpdateBlocks;
+ }
+
+
+ /**
+ * @see at.gv.egiz.pdfas.framework.vfilter.VerificationFilterParameters#scanForOldSignatures()
+ */
+ public boolean scanForOldSignatures()
+ {
+ return this.scanForOldSignatures;
+ }
+
+ /**
+ * @see java.lang.Object#toString()
+ */
+ // @override
+ public String toString()
+ {
+ return "{VerificationFilterParametersImpl: extractBinarySignaturesOnly = " + extractBinarySignaturesOnly() + ", assumeOnlySignatureUpdateBlocks = " + assumeOnlySignatureUpdateBlocks() + "}";
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterBinaryHelper.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterBinaryHelper.java new file mode 100644 index 0000000..b7f36d1 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterBinaryHelper.java @@ -0,0 +1,152 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter.helper;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import at.gv.egiz.pdfas.exceptions.ErrorCode;
+
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.InvalidIDException;
+import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;
+import at.knowcenter.wag.egov.egiz.pdf.BinarySignature;
+import at.knowcenter.wag.egov.egiz.pdf.Placeholder;
+import at.knowcenter.wag.egov.egiz.pdf.StringInfo;
+import at.knowcenter.wag.exactparser.parsing.IndirectObjectReference;
+import at.knowcenter.wag.exactparser.parsing.PDFUtils;
+import at.knowcenter.wag.exactparser.parsing.results.ArrayParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.DictionaryParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.IndirectObjectReferenceParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.NumberParseResult;
+import at.knowcenter.wag.exactparser.parsing.results.ObjectParseResult;
+
+/**
+ * Contains helpful methods used by the VerificationFilter to analyze the PDF for binary signatures.
+ *
+ * @author wprinz
+ */
+public final class VerificationFilterBinaryHelper
+{
+ /**
+ * The name of the egiz dict key.
+ */
+ public static final byte[] EGIZ_DICT_NAME = { 'E', 'G', 'I', 'Z', 'S', 'i', 'g', 'D', 'i', 'c', 't' };
+
+ /**
+ * The name of the ID (SIG_KZ) property in the egiz dict.
+ */
+ public static final byte[] EGIZ_KZ_NAME = { 'I', 'D' };
+
+ /**
+ * Tells, if the given incremental update block contains a binary signature.
+ *
+ * <p>
+ * According to definition, if a block is a binary block, it must/cannot
+ * contain other signatures than this one.
+ * </p>
+ *
+ * @param block
+ * The incremental update block.
+ * @return Returns true, if this block is a binary signature block, false
+ * otherwise.
+ */
+ public static boolean containsEGIZDict(final byte[] pdf, final FooterParseResult block)
+ {
+ int dict_index = PDFUtils.indexOfName(pdf, block.tpr.dpr.names, EGIZ_DICT_NAME);
+ if (dict_index <= 0)
+ {
+ return false;
+ }
+
+ return true;
+ }
+
+ /**
+ * Extracts the PDF AS ID of the egiz block.
+ *
+ * @param pdf
+ * The pdf.
+ * @param block
+ * The IU block.
+ * @return Returns the extracted PDF AS ID.
+ * @throws PDFDocumentException
+ * Forwarded exception.
+ * @throws InvalidIDException
+ * Forwarded exception.
+ */
+ public static PdfASID extractKZFromEGIZBlock(final byte[] pdf, final FooterParseResult block) throws PDFDocumentException, InvalidIDException
+ {
+ int egiz_index = PDFUtils.indexOfName(pdf, block.tpr.dpr.names, EGIZ_DICT_NAME);
+ if (egiz_index < 0)
+ {
+ throw new PDFDocumentException(301, "egiz_index = " + egiz_index);
+ }
+
+ IndirectObjectReferenceParseResult egiz_dict_iorpr = (IndirectObjectReferenceParseResult) block.tpr.dpr.values.get(egiz_index);
+ // logger_.debug("egiz_dict_ir = " + egiz_dict_iorpr.ior.object_number
+ // + " " + egiz_dict_iorpr.ior.generation_number);
+
+ IndirectObjectReference ior = egiz_dict_iorpr.ior;
+
+ final int egiz_dict_offset = PDFUtils.getObjectOffsetFromXRefByIndirectObjectReference(block.xpr, ior);
+ // logger_.debug("egiz_dict_offset = " + egiz_dict_offset);
+
+ ObjectParseResult obj = PDFUtils.parseObject(pdf, egiz_dict_offset);
+ DictionaryParseResult egiz_dict = (DictionaryParseResult) obj.object;
+
+ int kz_index = PDFUtils.indexOfName(pdf, egiz_dict.names, EGIZ_KZ_NAME);
+ if (kz_index < 0)
+ {
+ throw new PDFDocumentException(301, "kz_index = " + kz_index);
+ }
+ ArrayParseResult kz_apr = (ArrayParseResult) egiz_dict.values.get(kz_index);
+
+ String kz_string = restoreKZ(pdf, kz_apr);
+ PdfASID kz = new PdfASID(kz_string);
+
+ return kz;
+ }
+
+ /**
+ * Restores the Kennzeichnung String from an Array.
+ *
+ * @param pdf
+ * The PDF.
+ * @param kz_apr
+ * The Array, as parsed from the EGIZ Dict.
+ * @return Returns the restored KZ.
+ * @throws PDFDocumentException
+ * Forwarded exception.
+ */
+ public static String restoreKZ(byte[] pdf, ArrayParseResult kz_apr) throws PDFDocumentException
+ {
+ try
+ {
+ List partition = new ArrayList();
+
+ for (int i = 0; i < kz_apr.elements.size() / 2; i++)
+ {
+ NumberParseResult start_npr = (NumberParseResult) kz_apr.elements.get(i * 2);
+ NumberParseResult length_npr = (NumberParseResult) kz_apr.elements.get(i * 2 + 1);
+
+ StringInfo si = new StringInfo();
+ si.string_start = start_npr.number;
+ si.string_length = length_npr.number;
+
+ partition.add(si);
+ }
+
+ String KZ = Placeholder.reconstructStringFromPartition(pdf, partition, BinarySignature.ENCODING_WIN);
+ return KZ;
+ }
+ catch (IOException e1)
+ {
+ throw new PDFDocumentException(ErrorCode.DOCUMENT_CANNOT_BE_READ, e1);
+ }
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterHelper.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterHelper.java new file mode 100644 index 0000000..67af129 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterHelper.java @@ -0,0 +1,142 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter.helper;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import at.gv.egiz.pdfas.exceptions.framework.VerificationFilterException;
+import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
+import at.gv.egiz.pdfas.impl.vfilter.Partition;
+import at.gv.egiz.pdfas.impl.vfilter.partition.BinaryPartition;
+import at.gv.egiz.pdfas.impl.vfilter.partition.TextPartition;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.knowcenter.wag.exactparser.parsing.results.FooterParseResult;
+
+/**
+ * Contains helpful methods used by the VerificationFilter.
+ *
+ * @author wprinz
+ */
+public final class VerificationFilterHelper
+{
+ /**
+ * Partitions the list of Incremental Update blocks into text and binary
+ * partitions.
+ *
+ * <p>
+ * A partition is a sequence of Incremental Update blocks of the same type.
+ * </p>
+ * <p>
+ * An Incremental Update block is considered to have the type "binary" if it
+ * contains an egiz dictionary. A block not containing an egiz dictionary is
+ * considert to have the type "text".
+ * </p>
+ *
+ * @param pdf
+ * The PDF.
+ * @param blocks
+ * The Incremental Update blocks.
+ * @return Returns the partitioning of the blocks.
+ * @throws VerificationFilterException
+ * Thrown if something goes wrong.
+ */
+ public static List partition(PdfDataSource pdf, List blocks) throws VerificationFilterException
+ {
+ List partitions = new ArrayList(blocks.size());
+
+ Iterator it = blocks.iterator();
+ while (it.hasNext())
+ {
+ FooterParseResult fpr = (FooterParseResult) it.next();
+
+ byte[] data = DataSourceHelper.convertDataSourceToByteArray(pdf);
+ if (VerificationFilterBinaryHelper.containsEGIZDict(data, fpr))
+ {
+ BinaryPartition bp = null;
+ if (partitions.isEmpty() || ((Partition) partitions.get(partitions.size() - 1)).isTextPartition())
+ {
+ bp = new BinaryPartition();
+ bp.blocks = new ArrayList(blocks.size());
+ partitions.add(bp);
+ }
+ else
+ {
+ bp = (BinaryPartition) partitions.get(partitions.size() - 1);
+ }
+ assert bp != null;
+
+ bp.blocks.add(fpr);
+ }
+ else
+ {
+ TextPartition tp = null;
+ if (partitions.isEmpty() || !((Partition) partitions.get(partitions.size() - 1)).isTextPartition())
+ {
+ tp = new TextPartition();
+ tp.blocks = new ArrayList(blocks.size());
+ partitions.add(tp);
+ }
+ else
+ {
+ tp = (TextPartition) partitions.get(partitions.size() - 1);
+ }
+ assert tp != null;
+
+ tp.blocks.add(fpr);
+ }
+ }
+
+ assert partitions.size() >= 1 : "There must be at least one partition";
+
+ return partitions;
+ }
+
+ /**
+ * Determines the end of the given partiton.
+ *
+ * @param partition
+ * The partition.
+ * @return Returns the end index of the given partition.
+ */
+ public static int getEndOfPartition(Partition partition)
+ {
+ List blocks = null;
+ if (partition instanceof TextPartition)
+ {
+ blocks = ((TextPartition) partition).blocks;
+ }
+ else
+ {
+ blocks = ((BinaryPartition) partition).blocks;
+ }
+
+ return ((FooterParseResult) blocks.get(blocks.size() - 1)).next_index;
+ }
+
+ /**
+ * Finds the last text partition in the given list of partitions.
+ *
+ * @param partitions
+ * The partitions.
+ * @return Returns the last TextPartition.
+ */
+ public static TextPartition findLastTextPartition(List partitions)
+ {
+ Partition lastTextPartition = (Partition) partitions.get(partitions.size() - 1);
+
+ if (!lastTextPartition.isTextPartition())
+ {
+ assert partitions.size() > 1 : "The only one partition cannot be a binary partition - where is the original document?";
+ Partition previousToLastPartition = (Partition) partitions.get(partitions.size() - 2);
+ assert previousToLastPartition.isTextPartition() : "The previous to last partition must be a text partition or something is wrong with the partitioning algorithm.";
+
+ lastTextPartition = previousToLastPartition;
+ }
+
+ return (TextPartition) lastTextPartition;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterTextHelper.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterTextHelper.java new file mode 100644 index 0000000..f9a79b0 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/helper/VerificationFilterTextHelper.java @@ -0,0 +1,15 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter.helper;
+
+/**
+ * Contains helpful methods used by the VerificationFilter to analyze text and
+ * find text signatures.
+ *
+ * @author wprinz
+ */
+public final class VerificationFilterTextHelper
+{
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/BinaryPartition.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/BinaryPartition.java new file mode 100644 index 0000000..520f3b1 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/BinaryPartition.java @@ -0,0 +1,19 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter.partition;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.impl.vfilter.Partition;
+
+
+public class BinaryPartition implements Partition
+{
+ public List blocks = null;
+
+ public boolean isTextPartition()
+ {
+ return false;
+ }
+}
\ No newline at end of file diff --git a/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/TextPartition.java b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/TextPartition.java new file mode 100644 index 0000000..bf17633 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/impl/vfilter/partition/TextPartition.java @@ -0,0 +1,20 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.impl.vfilter.partition;
+
+import java.util.List;
+
+import at.gv.egiz.pdfas.impl.vfilter.Partition;
+
+
+public class TextPartition implements Partition
+{
+ public List blocks = null;
+
+ public boolean isTextPartition()
+ {
+ return true;
+ }
+
+}
\ No newline at end of file diff --git a/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounter.java b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounter.java new file mode 100644 index 0000000..2d9b461 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounter.java @@ -0,0 +1,62 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.performance;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * @author wprinz
+ */
+public class PerformanceCounter
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(PerformanceCounter.class);
+
+ protected String name = null;
+
+ protected long counter = 0;
+
+ public PerformanceCounter(String name)
+ {
+ this.name = name;
+ reset();
+ }
+
+ public PerformanceCounter(Class clazz)
+ {
+ this(clazz.getName());
+ }
+
+ public void increment()
+ {
+ this.counter++;
+ log.trace(this.name + ": incremented to " + this.counter);
+ }
+
+ public void reset()
+ {
+ this.counter = 0;
+ log.trace(this.name + ": reset to 0");
+ }
+
+ /**
+ * @return the name
+ */
+ public String getName()
+ {
+ return this.name;
+ }
+
+ /**
+ * @return the counter
+ */
+ public long getCounter()
+ {
+ return this.counter;
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounters.java b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounters.java new file mode 100644 index 0000000..6251c55 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceCounters.java @@ -0,0 +1,22 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.performance;
+
+/**
+ * Contains various global PerformanceCounters that provide information about the system.
+ *
+ * @author wprinz
+ */
+public final class PerformanceCounters
+{
+ /**
+ * Keeps track of the number of text extractions done so far.
+ */
+ public static PerformanceCounter textExtractions = new PerformanceCounter("TextExtractions");
+
+ /**
+ * Keeps track of the number of large byte array allocations.
+ */
+ public static PerformanceCounter byteArrays = new PerformanceCounter("ByteArrays");
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/performance/PerformanceTimer.java b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceTimer.java new file mode 100644 index 0000000..6ebb9be --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/performance/PerformanceTimer.java @@ -0,0 +1,48 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.performance;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * @author wprinz
+ *
+ */
+public class PerformanceTimer
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(PerformanceTimer.class);
+
+ protected String name = null;
+
+ protected long startTime = -1;
+
+ protected long stopTime = -1;
+
+ public PerformanceTimer(String name)
+ {
+ this.name = name;
+ }
+
+ public void start()
+ {
+ this.startTime = System.currentTimeMillis();
+ log.trace(this.name + ": started at " + this.startTime);
+ }
+
+ public void stop()
+ {
+ this.stopTime = System.currentTimeMillis();
+ log.trace(this.name + ": stopped at " + this.stopTime);
+ log.trace(this.name + ": time elapsed = " + getTimeElapsed());
+ }
+
+ public long getTimeElapsed()
+ {
+ return this.stopTime - this.startTime;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/utils/DataHashUtils.java b/src/main/java/at/gv/egiz/pdfas/utils/DataHashUtils.java new file mode 100644 index 0000000..19d7b33 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/utils/DataHashUtils.java @@ -0,0 +1,136 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.security.DigestInputStream;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import org.apache.commons.codec.binary.Base64;
+
+import at.knowcenter.wag.egov.egiz.pdf.BinarySignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.TextualSignatureHolder;
+
+/**
+ * Contains helpful methods for building data hashed.
+ *
+ * <p>
+ * Data hashes are useful for summarizing the signed data of signatures for
+ * debugging and testing purposes. Do not use these hashes for signatures.
+ * </p>
+ * <p>
+ * A data hash is always a Base64 encoded String.
+ * </p>
+ *
+ * @author wprinz
+ *
+ */
+public final class DataHashUtils
+{
+
+ /**
+ *
+ * @param text
+ * @return
+ */
+ public static String buildDataHash(String text)
+ {
+ try
+ {
+ MessageDigest md = getMessageDigest();
+ // probable performance leak for very large texts
+ md.update(text.getBytes("UTF-8"));
+ byte[] rawDigest = md.digest();
+
+ return encodeDigest(rawDigest);
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static String buildDataHash(byte[] data)
+ {
+ MessageDigest md = getMessageDigest();
+ md.update(data);
+ byte[] rawDigest = md.digest();
+
+ return encodeDigest(rawDigest);
+ }
+
+ public static String buildDataHash(InputStream is)
+ {
+ try
+ {
+ MessageDigest md = getMessageDigest();
+
+ DigestInputStream dis = new DigestInputStream(is, md);
+
+ byte[] temp = new byte[1024];
+ int i = 0;
+ while (dis.read(temp) >= 0)
+ {
+ // this just keeps the compiler from optimizing this loop away
+ i++;
+ }
+ dis.close();
+
+ byte[] rawDigest = md.digest();
+
+ return encodeDigest(rawDigest);
+ }
+ catch (IOException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static String buildDataHash(SignatureHolder sh)
+ {
+ if (sh instanceof TextualSignatureHolder)
+ {
+ TextualSignatureHolder tsh = (TextualSignatureHolder) sh;
+ String signedText = tsh.getSignedText();
+ return buildDataHash(signedText);
+ }
+
+ {
+ BinarySignatureHolder bsh = (BinarySignatureHolder) sh;
+ InputStream is = bsh.getSignedPdf().createInputStream();
+ return buildDataHash(is);
+ }
+ }
+
+ protected static MessageDigest getMessageDigest()
+ {
+ try
+ {
+ MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
+ return sha1;
+ }
+ catch (NoSuchAlgorithmException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+
+ protected static String encodeDigest(byte[] rawDigest)
+ {
+ try
+ {
+ byte[] encoded = Base64.encodeBase64(rawDigest);
+ String str = new String(encoded, "US-ASCII");
+ return str;
+ }
+ catch (UnsupportedEncodingException e)
+ {
+ throw new RuntimeException(e);
+ }
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/utils/StreamUtils.java b/src/main/java/at/gv/egiz/pdfas/utils/StreamUtils.java new file mode 100644 index 0000000..acf7e75 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/utils/StreamUtils.java @@ -0,0 +1,42 @@ +package at.gv.egiz.pdfas.utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class StreamUtils
+{
+
+ public static void writeInputStreamToOutputStream (InputStream is, OutputStream os) throws IOException
+ {
+ byte [] buffer = new byte [2048];
+
+ int read = -1;
+ while ((read = is.read(buffer)) > 0)
+ {
+ os.write(buffer, 0, read);
+ }
+ is.close();
+ os.close();
+ }
+
+ // The InputStream should be self- delimited.
+// public static void writeInputStreamToOutputStream(InputStream is, OutputStream os, int length) throws IOException
+// {
+// byte [] buffer = new byte [2048];
+//
+// int bytes_to_write = length;
+//
+// int read = -1;
+// while ((read = is.read(buffer, 0, (bytes_to_write >= buffer.length) ? buffer.length : bytes_to_write)) > 0)
+// {
+// os.write(buffer, 0, read);
+// bytes_to_write -= read;
+// }
+// is.close();
+// os.close();
+//
+// assert bytes_to_write == 0;
+// }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/CurrentLocalOperation.java b/src/main/java/at/gv/egiz/pdfas/web/CurrentLocalOperation.java new file mode 100644 index 0000000..83d214c --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/CurrentLocalOperation.java @@ -0,0 +1,87 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.web;
+
+import java.util.List;
+import java.util.Properties;
+
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.web.LocalRequest;
+
+/**
+ * Encapsulates a local operation.
+ *
+ * <p>
+ * A local operation is a sequence of successive local verifications.
+ * </p>
+ * <p>
+ * This is held on the VerifySessionInformation so that the DataURLServlet and RetrieveSignatureDataServlet
+ * can provide their data to the local service easily.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class CurrentLocalOperation
+{
+
+ /**
+ * The signature holders to be verified in the current local operation.
+ */
+ public List holders_to_be_verified;
+
+
+ /**
+ * An array of local requests to be processed.
+ */
+ public LocalRequest[] requests = null;
+
+ /**
+ * An array of response strings of the local requests.
+ */
+ public Properties[] response_properties = null;
+
+ /**
+ * The index of the holder/request to be processed.
+ */
+ public int current_operation = 0;
+
+// /**
+// * Tells, if the current local request has been finished.
+// */
+// public boolean finished = false;
+
+ /**
+ * @see at.gv.egiz.pdfas.web.LocalOperation#isFinished()
+ */
+ public boolean isFinished()
+ {
+ return this.current_operation >= this.requests.length;
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.web.LocalOperation#getCurrentLocalRequest()
+ */
+ public LocalRequest getCurrentLocalRequest()
+ {
+ return this.requests[this.current_operation];
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.web.LocalOperation#getCurrentSignatureHolder()
+ */
+ public SignatureHolder getCurrentSignatureHolder()
+ {
+ return (SignatureHolder) this.holders_to_be_verified.get(this.current_operation);
+ }
+
+ /**
+ * @see at.gv.egiz.pdfas.web.LocalOperation#finishCurrentOperation(java.util.Properties)
+ */
+ public void finishCurrentOperation(Properties response_properties)
+ {
+ this.response_properties[this.current_operation] = response_properties;
+
+ this.current_operation++;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/SignSessionInformation.java b/src/main/java/at/gv/egiz/pdfas/web/SignSessionInformation.java new file mode 100644 index 0000000..459a104 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/SignSessionInformation.java @@ -0,0 +1,140 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.web;
+
+import java.io.Serializable;
+import java.util.Properties;
+
+import javax.servlet.http.HttpSessionBindingEvent;
+import javax.servlet.http.HttpSessionBindingListener;
+
+import at.gv.egiz.pdfas.impl.input.FileBasedPdfDataSourceImpl;
+import at.gv.egiz.pdfas.impl.output.FileBasedDataSink;
+import at.gv.egiz.pdfas.web.helper.TempDirHelper;
+import at.gv.egiz.pdfas.framework.signator.SignatorInformation;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+import at.knowcenter.wag.egov.egiz.web.ExternAppInformation;
+import at.knowcenter.wag.egov.egiz.web.LocalRequest;
+
+/**
+ * @author wprinz
+ *
+ */
+public class SignSessionInformation implements HttpSessionBindingListener, Serializable
+{
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = 2739944460007369626L;
+
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(SignSessionInformation.class);
+
+ /**
+ * The connector.
+ */
+ public String connector = null;
+
+ /**
+ * For local requests, tells the application (sign, verify).
+ */
+ public String application = null;
+
+ /**
+ * Tells the operation mode (binary, textual).
+ */
+ public String mode = null;
+
+ /**
+ * The original, uploaded pdf.
+ */
+ public FileBasedPdfDataSourceImpl pdfDataSource = null;
+
+ /**
+ * The type/profile of the signature.
+ */
+ public String type = null;
+
+ /**
+ * The suggested filename.
+ */
+ public String filename;
+
+ /**
+ * Tells, if the file download should be done inline or as attachment.
+ */
+ public boolean download_inline;
+
+ /**
+ * Object containing information about the calling webapplication.
+ *
+ * @author: Thomas Zefferer
+ */
+ public ExternAppInformation exappinf;
+
+ /**
+ * Information about the signature position
+ *
+ * @author: Thomas Zefferer
+ */
+ public TablePos pos;
+
+ /**
+ * The SignatorInformation.
+ */
+ public SignatorInformation si = null;
+
+ /**
+ * The DataSink to write the output data to.
+ */
+ public FileBasedDataSink output = null;
+
+ /**
+ * The local request to be sent to the device.
+ */
+ public LocalRequest localRequest = null;
+
+ /**
+ * The response properties of the local request.
+ */
+ public Properties response_properties = null;
+
+ /**
+ * Tells if the sign request has been processed and the signed document is
+ * available in the DataSink.
+ */
+ public boolean outputAvailable = false;
+
+
+ /**
+ * @see javax.servlet.http.HttpSessionBindingListener#valueBound(javax.servlet.http.HttpSessionBindingEvent)
+ */
+ public void valueBound(HttpSessionBindingEvent event)
+ {
+ log.debug("Bound SignSessionInformation to session.");
+ }
+
+ /**
+ * @see javax.servlet.http.HttpSessionBindingListener#valueUnbound(javax.servlet.http.HttpSessionBindingEvent)
+ */
+ public void valueUnbound(HttpSessionBindingEvent event)
+ {
+ log.debug("Unbound SignSessionInformation from session.");
+
+ if (this.pdfDataSource != null)
+ {
+ TempDirHelper.deleteDataSourceIfFileBased(this.pdfDataSource);
+ }
+ if (this.output != null)
+ {
+ TempDirHelper.deleteDataSinkIfFileBased(this.output);
+ }
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/VerifySessionInformation.java b/src/main/java/at/gv/egiz/pdfas/web/VerifySessionInformation.java new file mode 100644 index 0000000..e998ded --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/VerifySessionInformation.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: SessionInformation.java,v 1.2 2006/08/25 17:06:11 wprinz Exp $
+ */
+package at.gv.egiz.pdfas.web;
+
+import java.io.Serializable;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.servlet.http.HttpSessionBindingEvent;
+import javax.servlet.http.HttpSessionBindingListener;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.web.helper.TempDirHelper;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.TablePos;
+import at.knowcenter.wag.egov.egiz.web.ExternAppInformation;
+
+/**
+ * This class is a collection of various session parameters that are passed
+ * between the servlets and jsps.
+ *
+ * <p>
+ * The SessionInformation class contains type safe references to the objects.
+ * </p>
+ *
+ * @author wprinz
+ */
+public class VerifySessionInformation implements HttpSessionBindingListener, Serializable
+{
+
+ /**
+ * SVUID.
+ */
+ private static final long serialVersionUID = -7413884936584659150L;
+
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(VerifySessionInformation.class);
+
+ /**
+ * The connector.
+ */
+ public String connector = null;
+
+ /**
+ * For local requests, tells the application (sign, verify).
+ */
+ public String application = null;
+
+ /**
+ * Tells the operation mode (binary, textual).
+ */
+ public String mode = null;
+
+ /**
+ * The original, uploaded pdf.
+ */
+ //public FileBasedPdfDataSourceImpl pdfDataSource = null;
+ public DataSource inputDataSource = null;
+
+ /**
+ * The type/profile of the signature.
+ */
+ public String type = null;
+
+// /**
+// * The user name.
+// */
+// public String user_name = null;
+//
+// /**
+// * The password.
+// */
+// public String user_password = null;
+
+ /**
+ * All SignatureHolders extracted from the document.
+ */
+ public List signature_holders;
+
+ /**
+ * Keeps track of the currently running local operation.
+ *
+ * <p>
+ * Only valid during local verify.
+ * </p>
+ */
+ public CurrentLocalOperation currentLocalOperation = null;
+
+ /**
+ * This is used only for MOA loc-ref web verify.
+ */
+ public SignatureHolder moa_holder;
+
+
+// /**
+// * The incremental update information that has been extracted from the given
+// * PDF document.
+// */
+// public IncrementalUpdateInformation iui;
+
+// public SignatorInformation si = null;
+
+// public FileBasedDataSink output = null;
+
+
+// /**
+// * Copy of signature holders. It's needed by BKU when we try to verify single by single
+// * signature.
+// */
+// public List copy_of_signature_holders;
+
+// /**
+// * The suggested filename.
+// */
+// public String filename;
+//
+// /**
+// * Tells, if the file download should be done inline or as attachment.
+// */
+// public boolean download_inline;
+
+//// /**
+//// * The sign result to be passed back to the user.
+//// */
+//// public SignResult sign_result;
+//
+// public boolean isSignFinished = false;
+
+
+
+ /**
+ * Object containing information about the calling webapplication.
+ * @author: Thomas Zefferer
+ */
+ public ExternAppInformation exappinf;
+
+ /**
+ * Information about the signature position
+ * @author: Thomas Zefferer
+ */
+ public TablePos pos ;
+
+
+
+ /**
+ * @see javax.servlet.http.HttpSessionBindingListener#valueBound(javax.servlet.http.HttpSessionBindingEvent)
+ */
+ public void valueBound(HttpSessionBindingEvent event)
+ {
+ log.debug("Bound SignSessionInformation to session.");
+ }
+
+ /**
+ * @see javax.servlet.http.HttpSessionBindingListener#valueUnbound(javax.servlet.http.HttpSessionBindingEvent)
+ */
+ public void valueUnbound(HttpSessionBindingEvent event)
+ {
+ log.debug("Unbound SignSessionInformation from session.");
+
+ if (this.inputDataSource != null)
+ {
+ TempDirHelper.deleteDataSourceIfFileBased(this.inputDataSource);
+ }
+ if (this.signature_holders != null)
+ {
+ Iterator it = this.signature_holders.iterator();
+ while (it.hasNext())
+ {
+ SignatureHolder sh = (SignatureHolder) it.next();
+ TempDirHelper.deleteDataSourceIfFileBased(sh.getDataSource());
+ }
+ }
+ }
+
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java b/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java new file mode 100644 index 0000000..5752838 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/helper/SessionHelper.java @@ -0,0 +1,48 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.web.helper;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.exceptions.web.SessionExpiredException;
+import at.knowcenter.wag.egov.egiz.web.SessionAttributes;
+
+/**
+ * @author wprinz
+ *
+ */
+public class SessionHelper
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(SessionHelper.class);
+
+ public static Object getSession(HttpServletRequest request) throws SessionExpiredException
+ {
+
+ HttpSession session = request.getSession(false);
+ if (session == null)
+ {
+ String msg = "There is no session associated with this request."; //$NON-NLS-1$
+ log.error(msg);
+ throw new SessionExpiredException(msg);
+ }
+
+ Object sessionObject = session.getAttribute(SessionAttributes.ATTRIBUTE_SESSION_INFORMATION);
+ if (sessionObject == null)
+ {
+ String msg = "The session is not found or no longer valid."; //$NON-NLS-1$
+ log.error(msg);
+ throw new SessionExpiredException(msg);
+ }
+
+ return sessionObject;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java b/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java new file mode 100644 index 0000000..55e0051 --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java @@ -0,0 +1,229 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.web.helper;
+
+import java.io.IOException;
+import java.net.URL;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.SignatorFactory;
+import at.gv.egiz.pdfas.framework.signator.Signator;
+import at.gv.egiz.pdfas.web.SignSessionInformation;
+import at.knowcenter.wag.egov.egiz.PdfASID;
+import at.knowcenter.wag.egov.egiz.exceptions.PresentableException;
+import at.knowcenter.wag.egov.egiz.framework.signators.DetachedSignator_1_0_0;
+import at.knowcenter.wag.egov.egiz.sig.ConnectorFactory;
+import at.knowcenter.wag.egov.egiz.sig.connectors.Connector;
+import at.knowcenter.wag.egov.egiz.sig.connectors.ConnectorChooser;
+import at.knowcenter.wag.egov.egiz.sig.connectors.bku.SignSignatureObject;
+import at.knowcenter.wag.egov.egiz.web.FormFields;
+import at.knowcenter.wag.egov.egiz.web.LocalRequestHelper;
+
+/**
+ * @author wprinz
+ *
+ */
+public class SignServletHelper
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(SignServletHelper.class);
+
+ protected static void dispatch(HttpServletRequest request, HttpServletResponse response, String resource, ServletContext context) throws ServletException, IOException
+ {
+ response.setContentType("text/html");
+ response.setCharacterEncoding("UTF-8");
+
+ RequestDispatcher disp = context.getRequestDispatcher(resource);
+ disp.forward(request, response);
+ }
+
+
+ /**
+ * Prepares the sign.
+ *
+ * <p>
+ * This prepares the data for both being signed or being previewed.
+ * </p>
+ *
+ * @param si
+ * The SessionInformation to be prepared.
+ * @throws PresentableException
+ * f.e.
+ */
+ public static void prepareSign(SignSessionInformation si) throws PresentableException
+ {
+ log.debug("prepareSign:"); //$NON-NLS-1$
+
+ PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);
+ Signator signator = SignatorFactory.createSignator(algorithm);
+
+ // tzefferer: modified
+ // si.iui = signator.prepareSign(si.pdf, si.type, null,
+ // ConnectorFactory.needsSIG_ID(si.connector));
+ si.si = signator.prepareSign(si.pdfDataSource, si.type, si.pos, ConnectorFactory.needsSIG_ID(si.connector));
+ // end modify
+ log.debug("prepareSign finished."); //$NON-NLS-1$
+ }
+
+ /**
+ * Finishes the sign.
+ *
+ * <p>
+ * For non local connectors this concludes the sign process, signs the
+ * document and returns the result. For local connectors this initializes the
+ * local sign process and redirects to following servlets.
+ * </p>
+ *
+ * @param si
+ * The SessionInformation.
+ * @param request
+ * The servlet request for dispatching.
+ * @param response
+ * The servlet response for dispatching.
+ * @param context
+ * The servlet context for dispatching.
+ * @throws PresentableException
+ * f.e.
+ * @throws IOException
+ * f. e.
+ * @throws ServletException
+ * f. e.
+ */
+ public static void finishSign(SignSessionInformation si, HttpServletRequest request, HttpServletResponse response, ServletContext context) throws PresentableException, IOException, ServletException
+ {
+ log.debug("finishSign:"); //$NON-NLS-1$
+
+ log.debug("connector = " + si.connector); //$NON-NLS-1$
+ if (ConnectorFactory.isConnectorLocal(si.connector))
+ {
+ log.debug("Connector is local -> dispatching to local processing."); //$NON-NLS-1$
+
+ String dispatch_to = LocalRequestHelper.processLocalSign(si, request, response);
+ dispatch(request, response, dispatch_to, context);
+ return;
+ }
+ log.debug("Connector is not local -> finishing the sign."); //$NON-NLS-1$
+
+ PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);
+ Signator signator = SignatorFactory.createSignator(algorithm);
+
+ log.debug("RequestURL = " + request.getRequestURL());
+ log.debug("ContextPath = " + request.getContextPath());
+ String host = request.getServerName();
+ URL signature_data_URL = new URL(request.getScheme(), host, request.getServerPort(), request.getContextPath() + "/RetrieveSignatureData");
+ String signature_data_url = response.encodeURL(signature_data_URL.toString());
+
+ Connector c = ConnectorChooser.chooseWebConnectorForSign(si.connector, si.type, signature_data_url);
+ SignSignatureObject signSignatureObject = c.doSign(si.si.getSignatureData());
+
+ si.si.setSignSignatureObject(signSignatureObject);
+
+ si.output = TempDirHelper.createTempDataSink(si.filename + "_signed.pdf");
+ signator.finishSign(si.si, si.output);
+
+ returnSignResponse(si, response);
+
+ log.debug("finishSign finished."); //$NON-NLS-1$
+ }
+
+ /**
+ * Returns the data in the SignResult with proper content disposition.
+ *
+ * @param si
+ * SessionInformation.
+ * @param response
+ * The servlet response.
+ * @throws IOException
+ * The IO Exception.
+ */
+ public static void returnSignResponse(SignSessionInformation si, HttpServletResponse response) throws IOException
+ {
+// SignResult sign_result = si.sign_result;
+
+ String file_name = formatFileNameForSignResult(si.filename, si.output.getMimeType());
+
+ // tzefferer: added condition
+ if (si.exappinf == null)
+ {
+
+ // The name parameter is actually deprecated in favour of
+ // Content-Disposition filename
+ // Unfortunately Acrobat reader does recognize neither of these parameters
+ // with its inline save-as. It always takes the page name.
+ response.setContentType(si.output.getMimeType() + "; name=\"" + file_name + "\"");
+ if (si.download_inline)
+ {
+ response.addHeader("Content-Disposition", "inline; filename=\"" + file_name + "\"");
+ }
+ else
+ {
+ response.addHeader("Content-Disposition", "attachment; filename=\"" + file_name + "\"");
+ }
+
+ TempDirHelper.writeDataSinkToHttpResponse(si.output, response);
+ //response.getOutputStream().write(sign_result.getData());
+
+ // tzefferer: added else-block
+ }
+ else
+ {
+ // TODO @tzefferer: what is this code?
+ throw new RuntimeException("This has to be refactored.");
+// SignResult sr = si.sign_result;
+// byte[] signed_pdf = sr.getData();
+// PDFContainer entry = new PDFContainer(signed_pdf, si.exappinf.pdf_id);
+// ProvidePDFServlet.signedDocuments.add(entry);
+//
+// // notify webapp...
+// String invoke_url = si.exappinf.invoke_url;
+//
+// String providePDFServlet = "ProvidePDF";
+// String pdf_id = String.valueOf(si.exappinf.pdf_id);
+// String session_id = si.exappinf.session_id;
+//
+// // build URL
+// int ind = invoke_url.indexOf("?");
+// String query = invoke_url.substring(0, ind) + ";jsessionid=" + session_id + invoke_url.substring(ind) + "&" + FormFields.FIELD_PDF_URL + "=" + providePDFServlet + "&" + FormFields.FIELD_PDF_ID
+// + "=" + pdf_id + "&" + FormFields.FIELD_FILE_LENGTH + "=" + signed_pdf.length;
+//
+// response.sendRedirect(query);
+
+ }
+
+ }
+
+ /**
+ * Formats the file name according to the SignResult.
+ *
+ * @param file_name
+ * The file name.
+ * @param sign_result
+ * The sign result.
+ * @return Returns the formatted file name.
+ */
+ public static String formatFileNameForSignResult(String file_name, String mimeType)
+ {
+ String output = file_name + "_signed";
+ if (mimeType.equals(DetachedSignator_1_0_0.MIME_TYPE))
+ {
+ output += ".xml";
+ }
+ else
+ {
+ output += ".pdf";
+ }
+
+ return output;
+ }
+}
diff --git a/src/main/java/at/gv/egiz/pdfas/web/helper/TempDirHelper.java b/src/main/java/at/gv/egiz/pdfas/web/helper/TempDirHelper.java new file mode 100644 index 0000000..9f2b6fb --- /dev/null +++ b/src/main/java/at/gv/egiz/pdfas/web/helper/TempDirHelper.java @@ -0,0 +1,242 @@ +/**
+ *
+ */
+package at.gv.egiz.pdfas.web.helper;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.text.DecimalFormat;
+import java.text.NumberFormat;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+import at.gv.egiz.pdfas.impl.input.FileBased;
+import at.gv.egiz.pdfas.impl.input.FileBasedPdfDataSourceImpl;
+import at.gv.egiz.pdfas.impl.input.FileBasedTextDataSourceImpl;
+import at.gv.egiz.pdfas.impl.input.TextDataSourceImpl;
+import at.gv.egiz.pdfas.impl.output.FileBasedDataSink;
+import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
+import at.knowcenter.wag.egov.egiz.pdf.SignatureHolder;
+import at.knowcenter.wag.egov.egiz.pdf.TextualSignatureHolder;
+
+/**
+ * @author wprinz
+ *
+ */
+public class TempDirHelper
+{
+ /**
+ * The log.
+ */
+ private static Log log = LogFactory.getLog(TempDirHelper.class);
+
+ protected static long runningIndex = 0;
+
+ public static void storeTextSignatureHoldersIfApplicable(List shs, String fileNameSuffix) throws IOException
+ {
+ Iterator it = shs.iterator();
+ while (it.hasNext())
+ {
+ SignatureHolder sh = (SignatureHolder) it.next();
+ if (sh instanceof TextualSignatureHolder)
+ {
+ TextualSignatureHolder tsh = (TextualSignatureHolder) sh;
+ if (!(tsh.getDataSource() instanceof FileBased))
+ {
+ TextDataSource tds = (TextDataSource) tsh.getDataSource();
+ if (isReasonableToStore(tds.getText().length()))
+ {
+ TextDataSource fbtds = placeTextIntoTempDir(tds.getText(), fileNameSuffix);
+ tsh.exchangeDataSource(fbtds);
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Places the text into the temp dir if reasonable.
+ *
+ * <p>
+ * Reasonable means that the text is longer than a certain threshold.
+ * Otherwise a short text is simply held in memory.
+ * </p>
+ *
+ * @param text
+ * The text to be stored.
+ * @param fileNameSuffix
+ * A file name suffix so that the temp file gets a more "readable"
+ * name.
+ * @return Returns the TextDataSource.
+ * @throws IOException
+ * F.e.
+ */
+ public static TextDataSource placeTextIntoTempDir(String text, String fileNameSuffix) throws IOException
+ {
+ if (isReasonableToStore(text.length()))
+ {
+ String fileName = formatFileName(fileNameSuffix);
+
+ File tmpFile = createTempFileInDir(fileName);
+
+ FileOutputStream fos = new FileOutputStream(tmpFile);
+ OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-8");
+ osw.write(text);
+ osw.close();
+
+ FileBasedTextDataSourceImpl textDataSource = new FileBasedTextDataSourceImpl(tmpFile, "UTF-8");
+ return textDataSource;
+ }
+ else
+ {
+ return new TextDataSourceImpl(text);
+ }
+ }
+
+ /**
+ * Tells, if it is reasonable to store the text of the given length onto the
+ * disk.
+ *
+ * @param textLength
+ * The length of the text under question.
+ * @return Returns true if the text should be stored on the disk.
+ */
+ public static boolean isReasonableToStore(int textLength)
+ {
+ return textLength >= 10000;
+ }
+
+ public static FileBasedPdfDataSourceImpl placePdfIntoTempDir(InputStream pdfInput, String fileNameSuffix) throws IOException
+ {
+ File pdfFile = placeInputIntoTempDirFile(pdfInput, fileNameSuffix);
+
+ FileBasedPdfDataSourceImpl pdfDataSource = new FileBasedPdfDataSourceImpl(pdfFile, (int) pdfFile.length());
+ return pdfDataSource;
+ }
+
+ protected static File placeInputIntoTempDirFile(InputStream input, String fileNameSuffix) throws IOException
+ {
+ String fileName = formatFileName(fileNameSuffix);
+
+ File tmpFile = createTempFileInDir(fileName);
+
+ FileOutputStream fos = new FileOutputStream(tmpFile);
+
+ byte[] buffer = new byte[2048];
+ int read = -1;
+ while ((read = input.read(buffer)) > 0)
+ {
+ fos.write(buffer, 0, read);
+ }
+ fos.close();
+ input.close();
+
+ return tmpFile;
+ }
+
+ protected static String formatFileName(String fileNameSuffix)
+ {
+ String fileName = "tmp" + formatIndex(runningIndex) + "_" + fileNameSuffix;
+ runningIndex++;
+
+ return fileName;
+ }
+
+ protected static String formatIndex(long index)
+ {
+ NumberFormat nf = new DecimalFormat("00000000");
+
+ return nf.format(index);
+ }
+
+ protected static File createTempFileInDir(String fileName) throws IOException
+ {
+ File tempDir = new File(new File(SettingsReader.RESOURCES_PATH), "pdfastmp");
+
+ File tmpFile = new File(tempDir, fileName);
+
+ tmpFile.createNewFile();
+
+ tmpFile.deleteOnExit();
+
+ return tmpFile;
+ }
+
+ public static FileBasedDataSink createTempDataSink(String fileNameSuffix) throws IOException
+ {
+ String fileName = formatFileName(fileNameSuffix);
+
+ File tmpFile = createTempFileInDir(fileName);
+
+ FileBasedDataSink fbds = new FileBasedDataSink(tmpFile);
+
+ return fbds;
+ }
+
+ public static void writeDataSinkToHttpResponse(FileBasedDataSink fbds, HttpServletResponse response) throws IOException
+ {
+
+ response.setContentType(fbds.getMimeType());
+ response.setCharacterEncoding(fbds.getCharacterEncoding());
+
+ OutputStream os = response.getOutputStream();
+
+ byte[] buffer = new byte[2048];
+ FileInputStream fis = new FileInputStream(fbds.getFile());
+ int n = -1;
+ while ((n = fis.read(buffer)) > 0)
+ {
+ os.write(buffer, 0, n);
+ }
+ fis.close();
+ os.close();
+ }
+
+ /**
+ * Deletes the underlying file of the FileBased DataSource.
+ *
+ * <p>
+ * If the DataSource is not FileBased, nothing is done.
+ * </p>
+ * <p>
+ * This is usually used by the application to delete temporary files.
+ * </p>
+ *
+ * @param dataSource
+ */
+ public static void deleteDataSourceIfFileBased(DataSource dataSource)
+ {
+ if (dataSource instanceof FileBased)
+ {
+ FileBased fb = (FileBased) dataSource;
+ log.debug("Deleting temp file " + fb.getFile());
+ boolean deleted = fb.getFile().delete();
+ log.debug("deleted = " + deleted);
+ }
+ }
+
+ public static void deleteDataSinkIfFileBased(DataSink dataSink)
+ {
+ if (dataSink instanceof FileBased)
+ {
+ FileBased fb = (FileBased) dataSink;
+ log.debug("Deleting temp file " + fb.getFile());
+ boolean deleted = fb.getFile().delete();
+ log.debug("deleted = " + deleted);
+ }
+ }
+
+}
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