1 files changed, 179 insertions, 0 deletions
diff --git a/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUPostConnection.java b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUPostConnection.java
new file mode 100644
index 0000000..04b817f
--- /dev/null
+++ b/pdf-as-lib/src/main/java/at/knowcenter/wag/egov/egiz/sig/connectors/bku/BKUPostConnection.java
@@ -0,0 +1,179 @@
+/**
+ * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
+ * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
+ * joint initiative of the Federal Chancellery Austria and Graz University of
+ * Technology.
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://www.osor.eu/eupl/
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ *
+ * This product combines work with different licenses. See the "NOTICE" text
+ * file for details on the various modules and licenses.
+ * The "NOTICE" text file is part of the distribution. Any derivative works
+ * that you distribute must include a readable copy of the "NOTICE" text file.
+ */
+package at.knowcenter.wag.egov.egiz.sig.connectors.bku;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+import org.apache.commons.httpclient.Header;
+import org.apache.commons.httpclient.HttpClient;
+import org.apache.commons.httpclient.HttpException;
+import org.apache.commons.httpclient.methods.PostMethod;
+import org.apache.commons.httpclient.methods.multipart.FilePart;
+import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
+import org.apache.commons.httpclient.methods.multipart.Part;
+import org.apache.commons.httpclient.methods.multipart.PartSource;
+import org.apache.commons.httpclient.methods.multipart.StringPart;
+import org.apache.commons.httpclient.params.HttpMethodParams;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.pdfas.api.commons.Constants;
+import at.knowcenter.wag.egov.egiz.sig.SignatureData;
+
+/**
+ * Helper class with methods that use the Apache Https Client to send HTTP
+ * requests.
+ * 
+ * @author wprinz
+ */
+public final class BKUPostConnection
+{
+  /**
+   * The response Properties key that identifies the response string.
+   */
+  public static final String RESPONSE_STRING_KEY = "response_string"; //$NON-NLS-1$
+
+  /**
+   * The response Properties key that identifies the BKU Server header.
+   */
+  public static final String BKU_SERVER_HEADER_KEY = "BKU-Server-Header"; //$NON-NLS-1$
+  
+  /**
+   * The response property that declares the signature layout being applied.
+   */
+  public static final String BKU_SIGNATURE_LAYOUT_HEADER_KEY = "BKU-Signature-Layout"; //$NON-NLS-1$
+
+  /**
+   * The response Properties key that identifies the BKU User-Agent header.
+   */
+  public static final String BKU_USER_AGENT_HEADER_KEY = "BKU-User-Agent-Header"; //$NON-NLS-1$
+
+  /**
+   * The log.
+   */
+  private static Log log = LogFactory.getLog(BKUPostConnection.class);
+
+  /**
+   * Sends a multipart/form-data HTTP Post request to the given URL.
+   * 
+   * @param url The url the request is directed to.
+   * @param request The request XML, which will be the UTF-8 text/xml first part of the message.
+   * @param data The binary second part of the message.
+   * @return Returns the response properties which, among others, contain the response String.
+   * @throws HttpException
+   * @throws IOException
+   */
+  public static Properties doPostRequestMultipart(String url, String request,
+      final SignatureData data) throws HttpException, IOException
+  {
+    log.debug("doPostRequestMultipart:"); //$NON-NLS-1$
+
+    StringPart xmlpart = new StringPart("XMLRequest", request, "UTF-8");  //$NON-NLS-1$//$NON-NLS-2$
+
+    // TODO this is a BUG in BKU that doesn't allow the Content-Type header
+    xmlpart.setContentType(null);
+    xmlpart.setTransferEncoding(null);
+    // BKU 2.7.4 can't handle the Content-Type Header for the XML
+    // xmlpart.setContentType("text/xml");
+    // xmlpart.setTransferEncoding(null);
+
+    final String filename = data.getMimeType().equals("application/pdf") ? "myfile.pdf" : "myfile.txt"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+    PartSource ps = new PartSource() {
+      public InputStream createInputStream() throws IOException
+      {
+         return data.getDataSource().createInputStream();
+      }
+
+      public String getFileName()
+      {
+        return filename;
+      }
+
+      public long getLength()
+      {
+        return data.getDataSource().getLength();
+      }
+    };
+    //ByteArrayPartSource baps = new ByteArrayPartSource(filename, data.getData());
+    FilePart filepart = new FilePart("fileupload", ps); //$NON-NLS-1$
+    filepart.setContentType(data.getMimeType());
+
+    // not really needed since external referenced data has to be taken "as-is" (binary stream) for
+    // digest calculation, so neither content type nor charset is relevant
+    filepart.setCharSet(data.getCharacterEncoding());
+
+    Part[] parts = { xmlpart, filepart };
+
+    HttpMethodParams method_params = new HttpMethodParams();
+    method_params.setContentCharset("UTF-8"); //$NON-NLS-1$
+
+    PostMethod post_method = new PostMethod(url);
+    post_method.setParams(method_params);
+
+    MultipartRequestEntity mprqe = new MultipartRequestEntity(parts, post_method.getParams());
+    post_method.setRequestEntity(mprqe);
+
+    HttpClient http_client = new HttpClient();
+ 
+    int method_response = http_client.executeMethod(post_method);
+    log.debug("method_response = " + method_response); //$NON-NLS-1$
+
+    Properties response_properties = new Properties();
+
+    if (log.isDebugEnabled())
+    {
+      Header[] response_headers = post_method.getResponseHeaders();
+      for (int i = 0; i < response_headers.length; i++)
+      {
+        log.debug("  response_header[" + i + "]: name = " + response_headers[i].getName() + ", value = " + response_headers[i].getValue()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+      }
+    }
+    Header server_header = post_method.getResponseHeader("Server"); //$NON-NLS-1$
+    if (server_header != null) {
+       response_properties.setProperty(BKU_SERVER_HEADER_KEY, server_header.getValue());
+    } else {
+       log.warn("BKU response header \"Server\" is empty.");
+    }
+
+    Header signatureLayoutHeader = post_method.getResponseHeader(Constants.BKU_HEADER_SIGNATURE_LAYOUT); //$NON-NLS-1$
+    if (signatureLayoutHeader != null) {
+       response_properties.setProperty(BKU_SIGNATURE_LAYOUT_HEADER_KEY, signatureLayoutHeader.getValue());
+    }
+    
+    String responseCharSet = post_method.getResponseCharSet();
+    if (!"UTF8".equalsIgnoreCase(responseCharSet) && !"UTF-8".equalsIgnoreCase(responseCharSet)) {
+       log.warn("BKU response charset is not UTF-8!"); //$NON-NLS-1$
+    }
+    String response_string = post_method.getResponseBodyAsString();
+
+    response_properties.setProperty(RESPONSE_STRING_KEY, response_string);
+
+    log.debug("doPostRequestMultipart finished."); //$NON-NLS-1$
+    
+    return response_properties;
+  }
+
+}