From a8183a22b3a5bd9b062a1cded09a75ec8fa3be8e Mon Sep 17 00:00:00 2001
From: Andreas Fitzek <andreas.fitzek@iaik.tugraz.at>
Date: Wed, 5 Feb 2014 10:30:30 +0100
Subject: Fixed signature data hash verification, Pdf Download document name

---
 .../at/gv/egiz/pdfas/web/helper/PdfAsHelper.java    | 21 +++++++++++++++++++--
 .../egiz/pdfas/web/servlets/ExternSignServlet.java  | 19 +++++++++++++++++--
 .../java/at/gv/egiz/pdfas/web/servlets/PDFData.java |  1 +
 pdf-as-web/src/main/resources/template_provide.html |  2 +-
 4 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/PdfAsHelper.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/PdfAsHelper.java
index 77c31c9a..12d7ffc5 100644
--- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/PdfAsHelper.java
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/PdfAsHelper.java
@@ -64,6 +64,7 @@ public class PdfAsHelper {
 	private static final String PDF_PDFDATA_PAGE = "/PDFData";
 	private static final String PDF_DATAURL_PAGE = "/DataURL";
 	private static final String PDF_ERR_URL = "PDF_ERR_URL";
+	private static final String PDF_FILE_NAME = "PDF_FILE_NAME";
 	private static final String PDF_INVOKE_URL = "PDF_INVOKE_URL";
 	private static final String REQUEST_FROM_DU = "REQ_DATA_URL";
 	private static final String SIGNATURE_DATA_HASH = "SIGNATURE_DATA_HASH";
@@ -627,17 +628,33 @@ public class PdfAsHelper {
 	}
 	
 	public static void setSignatureDataHash(HttpServletRequest request, String value) {
-		request.setAttribute(SIGNATURE_DATA_HASH, value);
+		HttpSession session = request.getSession();
+		session.setAttribute(SIGNATURE_DATA_HASH, value);
 	}
 
 	public static String getSignatureDataHash(HttpServletRequest request) {
-		Object obj = request.getAttribute(SIGNATURE_DATA_HASH);
+		HttpSession session = request.getSession();
+		Object obj = session.getAttribute(SIGNATURE_DATA_HASH);
 		if (obj != null) {
 			return obj.toString();
 		}
 		return "";
 	}
 	
+	public static void setPDFFileName(HttpServletRequest request, String value) {
+		HttpSession session = request.getSession();
+		session.setAttribute(PDF_FILE_NAME, value);
+	}
+
+	public static String getPDFFileName(HttpServletRequest request) {
+		HttpSession session = request.getSession();
+		Object obj = session.getAttribute(PDF_FILE_NAME);
+		if (obj != null) {
+			return obj.toString();
+		}
+		return "document.pdf";
+	}
+	
 	public static void setSignatureActive(HttpServletRequest request, boolean value) {
 		request.setAttribute(SIGNATURE_ACTIVE, new Boolean(value));
 	}
diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/ExternSignServlet.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/ExternSignServlet.java
index 3a6bc971..dddd80dd 100644
--- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/ExternSignServlet.java
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/ExternSignServlet.java
@@ -151,7 +151,22 @@ public class ExternSignServlet extends HttpServlet {
 							FileItem item = (FileItem) obj;
 							if(item.getFieldName().equals(UPLOAD_PDF_DATA)) {
 								filecontent = item.get();
-								
+								try {
+									File f = new File(item.getName());
+									String name = f.getName();
+									logger.debug("Got upload: " + item.getName());
+									if(name != null) {
+										if(!(name.endsWith(".pdf") || name.endsWith(".PDF"))) {
+											name += ".pdf";
+										}
+										
+										logger.debug("Setting Filename in session: " + name);
+										PdfAsHelper.setPDFFileName(request, name);
+									}
+								}
+								catch(Throwable e) {
+									logger.error("In resolving filename", e);
+								}
 								if(filecontent.length < 10) {
 									filecontent = null;
 								} else {
@@ -162,7 +177,7 @@ public class ExternSignServlet extends HttpServlet {
 								logger.debug("Setting " + item.getFieldName() + " = " + item.getString());
 							}
 						} else {
-							logger.info(obj.getClass().getName() +  " - " + obj.toString());
+							logger.debug(obj.getClass().getName() +  " - " + obj.toString());
 						}
 					}
 				}
diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PDFData.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PDFData.java
index 9bf66fe9..0800c05c 100644
--- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PDFData.java
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PDFData.java
@@ -70,6 +70,7 @@ public class PDFData extends HttpServlet {
 					return;
 				}
 			}
+			response.setHeader("Content-Disposition", "inline;filename=" + PdfAsHelper.getPDFFileName(request));
 			response.setContentType("application/pdf");
 			OutputStream os = response.getOutputStream();
 			os.write(signedData);
diff --git a/pdf-as-web/src/main/resources/template_provide.html b/pdf-as-web/src/main/resources/template_provide.html
index d0bb41ac..5ba884a8 100644
--- a/pdf-as-web/src/main/resources/template_provide.html
+++ b/pdf-as-web/src/main/resources/template_provide.html
@@ -4,6 +4,6 @@
 <title>Provide PDF</title>
 </head>
 <body>
-PDF ready @: <a href="##PDFDATAURL##">here</a>
+PDF ready @: <a href="##PDFDATAURL##" download>here</a>
 </body>
 </html>
-- 
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