1 files changed, 71 insertions, 0 deletions
diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java b/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
index af155a1..43c9649 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUHelper.java
@@ -9,14 +9,18 @@ import java.security.cert.X509Certificate;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
+import java.util.Properties;
 import java.util.TimeZone;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import javax.servlet.http.HttpServletRequest;
+
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
+import at.gv.egiz.pdfas.api.commons.Constants;
 import at.gv.egiz.pdfas.exceptions.external.ExternalErrorException;
 import at.gv.egiz.pdfas.impl.input.helper.DataSourceHelper;
 import at.knowcenter.wag.egov.egiz.exceptions.ConnectorException;
@@ -582,4 +586,71 @@ public final class BKUHelper
     };
     return dateTimeElement;
   }
+  
+  public static String getBKUIdentifier(Properties parsedResponseProperties) {
+     
+     // http://www.buergerkarte.at/konzept/securitylayer/spezifikation/aktuell/bindings/bindings.html#http.kodierung.response.browser
+     String bkuServerHeader = parsedResponseProperties.getProperty(BKUPostConnection.BKU_SERVER_HEADER_KEY);
+
+     // http://www.buergerkarte.at/konzept/securitylayer/spezifikation/aktuell/bindings/bindings.html#http.kodierung.response.dataurl
+     String bkuUserAgentHeader = parsedResponseProperties.getProperty(BKUPostConnection.BKU_USER_AGENT_HEADER_KEY);
+     
+     String bkuSignatureLayout = parsedResponseProperties.getProperty(BKUPostConnection.BKU_SIGNATURE_LAYOUT_HEADER_KEY);
+
+     log.debug("BKU response header \"user-agent\":  " + bkuUserAgentHeader);
+     log.debug("BKU response header \"server\":  " + bkuServerHeader);
+     log.trace("BKU response header \"" + Constants.BKU_HEADER_SIGNATURE_LAYOUT + "\":  " + bkuSignatureLayout);
+
+     String result = null;
+     
+     if (bkuServerHeader != null) {
+        result = bkuServerHeader;
+     } else if (bkuUserAgentHeader != null) {
+        result = bkuUserAgentHeader;
+     } else {
+        log.warn("Unable to find any BKU identifier (neither header value \"user-agent\" nor \"server\".)");
+     }
+     
+     if (bkuSignatureLayout != null && result != null) {
+        log.info("BKU response header \"" + Constants.BKU_HEADER_SIGNATURE_LAYOUT + "\" found.");
+        String signatureLayoutData = " " + Constants.BKU_HEADER_SIGNATURE_LAYOUT + "/" + bkuSignatureLayout;
+        if (!result.endsWith(signatureLayoutData)) {
+           log.debug("Appending signature layout value \"" + bkuSignatureLayout + "\" to bku identifier.");
+           result += signatureLayoutData;
+        } else {
+           log.debug("Signature layout already encoded in server/user-agent header.");
+        }
+     }
+     
+     if (result != null) {
+        log.debug("Returning BKU identifier \"" + result + "\"");
+     } else {
+        log.debug("Returning null BKU identifier.");
+     }
+     
+     return result;
+  }
+  
+  public static String getBKUIdentifier(HttpServletRequest request) {
+     return getBKUIdentifier(getBKUProperties(request));
+  }
+  
+  public static Properties getBKUProperties(HttpServletRequest request) {
+     Properties props = new Properties();
+     String server = request.getHeader("server");
+     String userAgent = request.getHeader("user-agent");
+     String signatureLayout = request.getHeader(Constants.BKU_HEADER_SIGNATURE_LAYOUT);
+     if (server != null) {
+        props.setProperty(BKUPostConnection.BKU_SERVER_HEADER_KEY, server);
+     }
+     if (userAgent != null) {
+        props.setProperty(BKUPostConnection.BKU_USER_AGENT_HEADER_KEY, userAgent);
+     }
+     if (signatureLayout != null) {
+        props.setProperty(BKUPostConnection.BKU_SIGNATURE_LAYOUT_HEADER_KEY, signatureLayout);
+     }
+     return props;
+  }
+  
+  
 }