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From Chen Yang <cy...@hrsg.ca>
Subject RE: Java Servlet error with tomcat running on Windows Server 2008 R2
Date Fri, 14 Aug 2015 12:32:56 GMT
I have cleared whitespace or any escaping character in the URL, made sure all image links are
validated. But now I get a different error.

The error message shows "The resource path [file:/C:/tomcat/bin/] is not valid" , not sure
where is this "file:/C:/tomcat/bin/" path coming from, that all my images are accessed via
URLs not locally.  Something like: http://testing.mycompany.com/app/client_data/logo.png

I tested it in Apache Tomcat 8.0.23.

Full error message:

HTTP Status 500 - javax.xml.transform.TransformerException: org.xml.sax.SAXException: The
resource path [file:/C:/tomcat/bin/] is not valid

type Exception report

message javax.xml.transform.TransformerException: org.xml.sax.SAXException: The resource path
[file:/C:/tomcat/bin/] is not valid

description The server encountered an internal error that prevented it from fulfilling this
request.

exception

javax.servlet.ServletException: javax.xml.transform.TransformerException: org.xml.sax.SAXException:
The resource path [file:/C:/tomcat/bin/] is not valid
java.lang.IllegalArgumentException: The resource path [file:/C:/tomcat/bin/] is not valid
	org.apache.fop.servlet.FopServlet.doGet(FopServlet.java:166)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

javax.xml.transform.TransformerException: org.xml.sax.SAXException: The resource path [file:/C:/tomcat/bin/]
is not valid
java.lang.IllegalArgumentException: The resource path [file:/C:/tomcat/bin/] is not valid
	com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:755)
	com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:357)
	org.apache.fop.servlet.FopServlet.render(FopServlet.java:288)
	org.apache.fop.servlet.FopServlet.renderXML(FopServlet.java:255)
	org.apache.fop.servlet.FopServlet.doGet(FopServlet.java:157)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

-----Original Message-----
From: David kerber [mailto:dckerber@verizon.net] 
Sent: Thursday, July 16, 2015 2:30 PM
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Java Servlet error with tomcat running on Windows Server 2008 R2

On 7/16/2015 2:01 PM, Chen Yang wrote:
> Hi all,
>
> I'm maintaining a Java servlet which uses for render PDF files. Recently I've been tasked
to deploy it to run on windows environment.
>
> It works perfectly in our old Linux environment; but I'm having issues in windows with
the same setup, I can however get a pdf report when there is no image included, but no luck
when there are images included.
>
> I just want to mention I have checked firewall, file permissions and networking on the
windows sandbox machine.
>
> I've been asking around for helps, but without any luck so far. If anyone in the mailing
list can shed some light on it, It would be much appreciated!

I didn't read all your code, but in moving from *nix to Windows, the first thing I think of
is networking.  Are your image files on the local machine, or elsewhere on the network?  By
default, the localsystem user that services run under won't have access to networked files.
 The other thing to check is if any of your paths have spaces in them, and if so, that they're
escaped properly.


>
> Cheers,
>
> Chen
>
>
> Environment setup:
> *         JRE 1.8.0_45
> *         Tomcat 8.0.23
> *         Windows Server 2008 R2
>
> Error Message from Tomcat:
>
> HTTP Status 500 - javax.xml.transform.TransformerException: 
> org.xml.sax.SAXException: The resource path 
> [http://testing.mycompany.com/app/client_data/logo.png]<http://testing
> .mycompany.com/app/client_data/logo.png%5d> is not valid
>
> type Exception report
>
> message javax.xml.transform.TransformerException: 
> org.xml.sax.SAXException: The resource path 
> [http://testing.mycompany.com/app/client_data/logo.png]<http://testing
> .mycompany.com/app/client_data/logo.png%5d> is not valid
>
> description The server encountered an internal error that prevented it from fulfilling
this request.
>
> Servlet Code
>
> package org.apache.fop.servlet;
>
> import java.net.*;
> import java.io.*;
>
> import java.io.File;
> import java.io.IOException;
> import java.io.OutputStream;
> import java.io.PrintWriter;
> import java.net.URI;
> import java.net.URL;
>
> import javax.servlet.ServletException; import 
> javax.servlet.http.HttpServlet; import 
> javax.servlet.http.HttpServletRequest;
> import javax.servlet.http.HttpServletResponse;
> import javax.xml.transform.Result;
> import javax.xml.transform.Source;
> import javax.xml.transform.Transformer; import 
> javax.xml.transform.TransformerException;
> import javax.xml.transform.TransformerFactory;
> import javax.xml.transform.URIResolver; import 
> javax.xml.transform.sax.SAXResult;
> import javax.xml.transform.stream.StreamSource;
>
> import org.apache.commons.io.output.ByteArrayOutputStream;
>
> import org.apache.xmlgraphics.io.Resource;
> import org.apache.xmlgraphics.io.ResourceResolver;
>
> import org.apache.fop.apps.FOPException; import 
> org.apache.fop.apps.FOUserAgent; import org.apache.fop.apps.Fop; 
> import org.apache.fop.apps.FopFactory; import 
> org.apache.fop.apps.FopFactoryBuilder;
> import org.apache.fop.apps.FopConfParser;
> import org.apache.fop.apps.MimeConstants;
>
> import java.util.Calendar;
> import java.text.SimpleDateFormat;
>
> import org.apache.avalon.framework.configuration.Configuration;
> import 
> org.apache.avalon.framework.configuration.DefaultConfigurationBuilder;
>
> import org.apache.avalon.framework.configuration.Configuration;
> import 
> org.apache.avalon.framework.configuration.ConfigurationException;
> import org.apache.avalon.framework.configuration.DefaultConfiguration;
>
> import org.xml.sax.SAXException;
>
> public class FopServlet extends HttpServlet {
>
>      /** Name of the parameter used for the XSL-FO file */
>      protected static final String FO_REQUEST_PARAM = "fo";
>      /** Name of the parameter used for the XML file */
>      protected static final String XML_REQUEST_PARAM = "xml";
>      /** Name of the parameter used for the XSLT file */
>      protected static final String XSLT_REQUEST_PARAM = "xslt";
>      /** Name of the parameter used for the ROOT URL */
>      protected static final String ROOT_REQUEST_PARAM = "root_url";
>
>      /** The TransformerFactory used to create Transformer instances */
>      protected TransformerFactory transFactory = null;
>      /** The FopFactory used to create Fop instances */
>      protected FopFactory fopFactory = null;
>      /** URIResolver for use by this servlet */
>      protected URIResolver uriResolver;
>
>      public void init() throws ServletException {
>          this.uriResolver = new ServletContextURIResolver(getServletContext());
>          this.transFactory = TransformerFactory.newInstance();
>          this.transFactory.setURIResolver(this.uriResolver);
>          //Configure FopFactory as desired
>          ResourceResolver resolver = new ResourceResolver() {
>              public OutputStream getOutputStream(URI uri) throws IOException {
>                  URL url = getServletContext().getResource(uri.toASCIIString());
>                  return url.openConnection().getOutputStream();
>              }
>
>              public Resource getResource(URI uri) throws IOException {
>                  return new Resource(getServletContext().getResourceAsStream(uri.toASCIIString()));
>              }
>          };
>          FopFactoryBuilder builder = new FopFactoryBuilder(new File(".").toURI(), resolver);
>          //configureFopFactory(builder);
>
>          try {
>              String confFile = "C:\Program Files\tomcat\webapps\pdf_servlet\WEB-INF\iss-fop.xconf";
>              builder = new FopConfParser(new File(confFile)).getFopFactoryBuilder();
>          }catch(SAXException e) {
>              System.out.println(e);
>          }catch(IOException e) {
>              System.out.println(e);
>          }
>          fopFactory = builder.build();
>      }
>
>      public void doGet(HttpServletRequest request,
>                        HttpServletResponse response) throws ServletException {
>          try {
>              //Get parameters
>              String foParam = request.getParameter(FO_REQUEST_PARAM);
>              String xmlParam = request.getParameter(XML_REQUEST_PARAM);
>              String xsltParam = request.getParameter(XSLT_REQUEST_PARAM);
>              String RootParam = 
> request.getParameter(ROOT_REQUEST_PARAM);
>
>              //Analyze parameters and decide with method to use
>              if (foParam != null) {
>                  renderFO(foParam, response);
>              } else if ((xmlParam != null) && (xsltParam != null)) {
>                  renderXML(xmlParam,xsltParam,RootParam,response);
>              } else {
>                  response.setContentType("text/html");
>                  PrintWriter out = response.getWriter();
>                  out.println("<html><head><title>Error</title></head>\n"
>                            + "<body><h1>FopServlet Error</h1><h3>No
'fo' "
>                            + "request param given.</body></html>");
>              }
>          } catch (Exception ex) {
>              throw new ServletException(ex);
>          }
>      }
>
>      public static String now(String dateFormat) {
>          Calendar cal = Calendar.getInstance();
>          SimpleDateFormat sdf = new SimpleDateFormat(dateFormat);
>          return sdf.format(cal.getTime());
>      }
>
>      /**
>       * Converts a String parameter to a JAXP Source object.
>       * @param param a String parameter
>       * @return Source the generated Source object
>       */
>      protected Source convertString2Source(String param) {
>          Source src;
>          try {
>              src = uriResolver.resolve(param, null);
>          } catch (TransformerException e) {
>              src = null;
>          }
>          if (src == null) {
>              src = new StreamSource(new File(param));
>          }
>          return src;
>      }
>
>      private void sendPDF(byte[] content, HttpServletResponse response) throws IOException
{
>          //Send the result back to the client
>          response.setContentType("application/pdf");
>          File pdfFileName = new File(now("MM/dd/yyyy"));
>          response.addHeader("content-disposition","inline;filename=" + pdfFileName +
".pdf");
>          response.setContentLength(content.length);
>          //response.setContentLength(out.size());
>          response.getOutputStream().write(content);
>          response.getOutputStream().flush();
>      }
>
>      protected void renderFO(String fo, HttpServletResponse response)
>                  throws FOPException, TransformerException, 
> IOException {
>
>          //Setup source
>          Source foSrc = convertString2Source(fo);
>
>          //Setup the identity transformation
>          Transformer transformer = this.transFactory.newTransformer();
>          transformer.setURIResolver(this.uriResolver);
>
>          //Start transformation and rendering process
>          render(foSrc, transformer, response);
>      }
>
>
>      protected void renderXML(String xml, String xslt,String rootUrl,HttpServletResponse
response)
>                  throws FOPException, TransformerException, 
> IOException {
>
>          //Setup sources
>          StreamSource xmlSrc = new StreamSource(new URL(rootUrl + "/output/xml/" + xml).openStream());
>          StreamSource xsltSrc = new StreamSource(new URL(rootUrl + 
> "/output/xslt/" + xslt).openStream());
>
>          //Setup the XSL transformation
>          Transformer transformer = this.transFactory.newTransformer(xsltSrc);
>          transformer.setURIResolver(this.uriResolver);
>
>          //Start transformation and rendering process
>          render(xmlSrc, transformer, response);
>      }
>
>
>      protected void render(Source src, Transformer transformer, HttpServletResponse response)
>                  throws FOPException, TransformerException, 
> IOException {
>
>          FOUserAgent foUserAgent = getFOUserAgent();
>
>          //Setup output
>          ByteArrayOutputStream out = new ByteArrayOutputStream();
>
>          //Setup FOP
>          Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, 
> foUserAgent, out);
>
>          //Make sure the XSL transformation's result is piped through to FOP
>          Result res = new SAXResult(fop.getDefaultHandler());
>
>          //Start the transformation and rendering process
>          transformer.transform(src, res);
>
>          //Return the result
>          sendPDF(out.toByteArray(), response);
>      }
>
>      /** @return a new FOUserAgent for FOP */
>      protected FOUserAgent getFOUserAgent() {
>          FOUserAgent userAgent = fopFactory.newFOUserAgent();
>          //Configure foUserAgent as desired
>          return userAgent;
>      }
>
> }
>


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