From 3d7fedde0944207f5afb49fec95b391ad24e5f06 Mon Sep 17 00:00:00 2001
From: Andreas Fitzek <andreas.fitzek@iaik.tugraz.at>
Date: Wed, 16 Oct 2013 10:53:39 +0200
Subject: URL escape BUG  fixed

---
 .../egiz/pdfas/web/helper/SignServletHelper.java   |  1 +
 .../at/gv/egiz/pdfas/web/servlets/SignServlet.java | 47 ++++++++++++++++++++--
 2 files changed, 44 insertions(+), 4 deletions(-)

(limited to 'pdf-as-web')

diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java
index 4dbe6f0..b566651 100644
--- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/helper/SignServletHelper.java
@@ -182,6 +182,7 @@ public class SignServletHelper
     SignResult signResult = pdfAs.sign(si.signParameters, si.sdi);
     si.signResult = signResult;
     si.signedPdf = data.getData();
+    si.output = data;
     
 //    PdfASID algorithm = FormFields.translateSignatureModeToPdfASID(si.mode);
 //    Signator signator = SignatorFactory.createSignator(algorithm);
diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/SignServlet.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/SignServlet.java
index 19b729a..6cb55fe 100644
--- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/SignServlet.java
+++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/SignServlet.java
@@ -32,6 +32,9 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.net.URL;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -108,6 +111,9 @@ public class SignServlet extends HttpServlet {
 	public static final String SUBMITFORM_FILENAME_KEY = "signupload.jsp:filenameKey";
 	public static final String SUBMITFORM_PREVIEW = "signupload.jsp:previewKey";
 
+	public static final String HTTP_PROTOCOL = "http";
+	public static final String HTTPS_PROTOCOL = "https";
+
 	// Added by rpiazzi to know if an error occured within IFrame because this
 	// calls for
 	// a different display of the error
@@ -133,6 +139,25 @@ public class SignServlet extends HttpServlet {
 		disp.forward(request, response);
 	}
 
+	private URL getEncodedURLFromStringQuery(String query)
+			throws MalformedURLException, URISyntaxException {
+
+		URL url = new URL(query);
+
+		if (url.getProtocol().equals(HTTP_PROTOCOL)
+				|| url.getProtocol().equals(HTTPS_PROTOCOL)) {
+
+			URI uri = new URI(url.getProtocol(), url.getUserInfo(),
+					url.getHost(), url.getPort(), url.getPath(),
+					url.getQuery(), url.getRef());
+			url = uri.toURL();
+			return url;
+		}
+
+		throw new MalformedURLException(
+				"Only HTTP and HTTPS protocols supported");
+	}
+
 	/**
 	 * Processes the sign upload.
 	 * 
@@ -156,7 +181,7 @@ public class SignServlet extends HttpServlet {
 			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
-		
+
 		// check if pdf-as has been called by external webapp
 		if (request.getParameter(FormFields.FIELD_PDF_URL) != null) {
 			String preview = (String) request
@@ -248,7 +273,20 @@ public class SignServlet extends HttpServlet {
 
 			// wprinz: rem: this allocation is useless
 			// byte[] extern_pdf = new byte[Integer.parseInt(pdf_length)];
-			URL source_url = new URL(query);
+			// URL source_url = new URL(query);
+
+			// Bugfix TZ: Encode URL
+			URL source_url = null;
+			try {
+				source_url = getEncodedURLFromStringQuery(query);
+			} catch (URISyntaxException e) {
+
+				request.setAttribute("error", e.getMessage());
+				request.setAttribute("cause", e.getCause());
+				request.setAttribute("resourcebundle", Boolean.TRUE);
+				dispatch(request, response, "/jsp/error.jsp");
+			}
+
 			InputStream is = source_url.openStream();
 
 			// extern_pdf = toByteArray(is);
@@ -365,12 +403,13 @@ public class SignServlet extends HttpServlet {
 			si.pdfDataSource = ud.pdfDataSource;
 			si.type = ud.sig_type;
 			if (md != null) {
-				byte[] plain_digest = md.digest(ud.pdfDataSource.getAsByteArray());
+				byte[] plain_digest = md.digest(ud.pdfDataSource
+						.getAsByteArray());
 				plain_hex_digest = Hex.encodeHexString(plain_digest);
 				log.info("Original PDF HASH Value: " + plain_hex_digest);
 				si.plainPDFDigest = plain_hex_digest;
 			}
-			
+
 			si.filename = formatFileName(ud.file_name);
 
 			si.download_inline = ud.download_inline;
-- 
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