Thnks Peter.
I'll try to do that, and i'll let you know if it works.
bye
Peter Goode wrote:
>Fabio,
>After some experiments, I think there's actually a logical problem with what you're
>trying to do.
>If you do Save As from IE or Netscape then the saveas dialog box is displayed before
>the browser
>goes to make the request. So there's no way that can work, the link is generated
>correctly
>
>The way to do it might be to redirect a class of URLs (/Download say) to a jsp/java
>and extract the filename from
>the
>trailing part (PATH_INFO) of the URL, so something like,
> /Download/realfilename.extension
>With Download caught (by web.xml I think) and the script picking up the rest to find
>which file to send. Provided
>the 'Download' bit looks like a directory to the browsers they will use the other
>part for filename.
>
>(hopefully!)
>
>sorry gtg in a hurry, I'll try and get it to work later.
>
>Fabio Daprile wrote:
>
>>Hello,
>>
>>I've another little problem regarding download.
>>I use a RawScreen (Download.vm) and my files are stored in a MySql DB,
>>in a BLOB field.
>>It does work when you only display the file, the problem raises when you
>>try to save this file.
>>
>>hereafter how i call that page:
>> <a
>>href="$link.setPage("Download.vm").addQueryData("attachid",
>>"$Attachment.getId()")">$Attachment.getFilename()</A>
>>
>>and here how is et the headers:
>>
>> resp.setContentType(_attach.getContenttype());
>> resp.setContentLength(_attach.getContent().length);
>> resp.setHeader("Content-Disposition", "attachment");
>> resp.setHeader("filename", _attach.getFilename());
>>
>>The name of the file becomes "Download", the realname is lost.
>>
>>How is it possible to keep the name of the file.
>>
>>Peter Goode wrote:
>>
>>>John,
>>>Gotcha, I was trying to assign it as OutputStream..., presumably that was breaking
>>>it (?)
>>>
>>>Anyway, fixed now following your help... it's amazing how useful it is to be told
>>>what you've already read (manual blindness sets in after a while!)
>>>
>>>
>>>Is there a better file upload/download example than the TDK inbuilt app (newapp), as
>>>that doesn't have any working download at present,
>>>despite the upload. The attached code works ok.
>>>
>>>
>>>Thank you for your help.
>>>
>>>
>>>Peter
>>>
>>>John McNally wrote:
>>>
>>>>HttpServletResponse inherits the getOutputStream() method from
>>>>ServletResponse.
>>>>
>>>>Peter Goode wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>I've been trying to get an uploaded file to be sent back...
>>>>>
>>>>>PROBLEM:
>>>>>I can't get binary access to the output stream (from within subclass of
>>>>>RawScreen).
>>>>>
>>>>>I'm using the code below which is reproduced around various Turbine
>>>>>sites&mailing lists.
>>>>>However, .getOutputStream() doesn't actually exist, according to all
>>>>>documentation, and indeed
>>>>>it fails to work (although I've not got any debugging, just
>>>>>comment/uncomment and see what lives !)
>>>>>
>>>>>Is anything wrong with this..? (well yes) and why does everyone claim to
>>>>>use .getOutputStream() when it doesn't
>>>>>exist... ?
>>>>>
>>>>>If it can be made to work then the Tutorial should be updated, because
>>>>>there is no working download file
>>>>>in there at present.
>>>>>
>>>>>Cheers for your help
>>>>>
>>>>>Peter
>>>>>
>>>>>/*------/// code starts ///---------*/
>>>>>
>>>>>public class Download extends RawScreen
>>>>>{
>>>>> public void doOutput(RunData data) throws Exception
>>>>> {
>>>>> if (!isAuthorized(data))
>>>>> {
>>>>> // do something to tell the user they don't have permission
>>>>> }
>>>>> else
>>>>> {
>>>>> data.declareDirectResponse();
>>>>> FileInputStream file_tosend = new
>>>>>FileInputStream(TurbineServlet.getRealPath("/uploaded.file"));
>>>>> BufferedInputStream buffer_data = new
>>>>>BufferedInputStream(file_tosend);
>>>>> // OK to here
>>>>>
>>>>> // these 3 would kill it
>>>>> //OutputStream stream_out =
>>>>>data.getResponse().getOutputStream();
>>>>> //BufferedOutputStream buffer_out = new
>>>>>BufferedOutputStream(stream_out);
>>>>> //buffer_out.write(buffer_data.read());
>>>>>
>>>>> // *** *** this one kills it, when enabled *** ***
>>>>> //OutputStream a = data.getResponse().getOutputStream();
>>>>>
>>>>> // Will work and do all this, provided the
>>>>>.getOutputStream() call isn't made YYY
>>>>> // Documentation for RunData.getResponse() -->
>>>>>javax.servlet.http.HttpServletResponse
>>>>> // shows that there is no .getOutputStream() method... what
>>>>>should be going on !?
>>>>> String str = "test 9D";
>>>>> PrintWriter out = data.getOut();
>>>>> out.println(str);
>>>>> out.flush();
>>>>> file_tosend.close();
>>>>> }
>>>>> }
>>>>>
>>>>> public String getContentType(RunData data)
>>>>> {
>>>>> return "text/html";
>>>>> //return "image/jpeg";
>>>>> }
>>>>>
>>>>> protected boolean isAuthorized(RunData data)
>>>>> {
>>>>> // do the security check here. Get whatever info you need
>>>>> // about the user from RunData
>>>>> return true;
>>>>> }
>>>>>}
>>>>>/*------/// ends ///---------*/
>>>>>
>>>>>--
>>>>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>>
>>>>--
>>>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>
>>>>
>>>>------------------------------------------------------------------------
>>>>
>>>>package org.mrexcessive.peter1.modules.screens;
>>>>
>>>>/* ====================================================================
>>>>* The Apache Software License, Version 1.1
>>>>*
>>>>* Copyright (c) 2001 The Apache Software Foundation. All rights
>>>>* reserved.
>>>>*
>>>>* Redistribution and use in source and binary forms, with or without
>>>>* modification, are permitted provided that the following conditions
>>>>* are met:
>>>>*
>>>>* 1. Redistributions of source code must retain the above copyright
>>>>* notice, this list of conditions and the following disclaimer.
>>>>*
>>>>* 2. Redistributions in binary form must reproduce the above copyright
>>>>* notice, this list of conditions and the following disclaimer in
>>>>* the documentation and/or other materials provided with the
>>>>* distribution.
>>>>*
>>>>* 3. The end-user documentation included with the redistribution,
>>>>* if any, must include the following acknowledgment:
>>>>* "This product includes software developed by the
>>>>* Apache Software Foundation (http://www.apache.org/)."
>>>>* Alternately, this acknowledgment may appear in the software itself,
>>>>* if and wherever such third-party acknowledgments normally appear.
>>>>*
>>>>* 4. The names "Apache" and "Apache Software Foundation" and
>>>>* "Apache Turbine" must not be used to endorse or promote products
>>>>* derived from this software without prior written permission. For
>>>>* written permission, please contact [EMAIL PROTECTED]
>>>>*
>>>>* 5. Products derived from this software may not be called "Apache",
>>>>* "Apache Turbine", nor may "Apache" appear in their name, without
>>>>* prior written permission of the Apache Software Foundation.
>>>>*
>>>>* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
>>>>* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
>>>>* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
>>>>* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
>>>>* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>>>>* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
>>>>* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
>>>>* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
>>>>* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
>>>>* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
>>>>* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
>>>>* SUCH DAMAGE.
>>>>* ====================================================================
>>>>*
>>>>* This software consists of voluntary contributions made by many
>>>>* individuals on behalf of the Apache Software Foundation. For more
>>>>* information on the Apache Software Foundation, please see
>>>>* <http://www.apache.org/>.
>>>>*/
>>>>
>>>>import java.util.Vector;
>>>>import java.io.FileInputStream;
>>>>import java.io.BufferedInputStream;
>>>>import java.io.BufferedOutputStream;
>>>>import java.io.OutputStream;
>>>>import java.io.PrintWriter;
>>>>import javax.servlet.ServletOutputStream;
>>>>
>>>>import org.apache.turbine.modules.screens.RawScreen;
>>>>import org.apache.turbine.util.RunData;
>>>>
>>>>import org.apache.turbine.util.db.Criteria;
>>>>import org.mrexcessive.peter1.om.RdfPeer;
>>>>import org.apache.turbine.util.upload.FileItem;
>>>>import org.apache.turbine.services.servlet.TurbineServlet;
>>>>
>>>>import org.apache.velocity.context.Context;
>>>>
>>>>/**
>>>>Send back the previously uploaded file, uses RawScreen via Download.vm (?possibly
>wrong?)
>>>>*/
>>>>public class Download extends RawScreen
>>>>{
>>>> public void doOutput(RunData data) throws Exception
>>>> {
>>>> if (!isAuthorized(data))
>>>> {
>>>> // do something to tell the user they don't have permission
>>>> }
>>>> else
>>>> {
>>>> data.declareDirectResponse();
>>>> FileInputStream file_tosend = new
>FileInputStream(TurbineServlet.getRealPath("/uploaded.file"));
>>>> ServletOutputStream op = data.getResponse().getOutputStream();
>>>> int bufsize = 16384;
>>>> byte [] buf = new byte[bufsize];
>>>> while (file_tosend.available() > 0) { // belt & braces ? why
>>>> int got = file_tosend.read(buf,0,bufsize);
>>>> if (got != -1) {
>>>> op.write(buf,0,got);
>>>> }
>>>> else {
>>>> break;
>>>> }
>>>> }
>>>> op.flush();
>>>> }
>>>> }
>>>>
>>>> public String getContentType(RunData data)
>>>> {
>>>> return "image/jpeg";
>>>> }
>>>>
>>>> protected boolean isAuthorized(RunData data)
>>>> {
>>>> // do the security check here. Get whatever info you need
>>>> // about the user from RunData
>>>> return true;
>>>> }
>>>>}
>>>>
>>>>
>>>>------------------------------------------------------------------------
>>>>
>>>>--
>>>>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>>>>
>>--
>>
>>--
>>Fabio Daprile
>>
>>W�rth-Phoenix Srl
>>Via Kravogl 4, I-39100 Bolzano
>>Tel: +39 0471/564111 - (direct 564070)
>>Fax: +39 0471/564122
>>
>>mailto:[EMAIL PROTECTED]
>>http://www.wuerth-phoenix.com
>>http://www.wuerth.com
>>
>
>
>--
>To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
>For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
>
>
>
--
--
Fabio Daprile
W�rth-Phoenix Srl
Via Kravogl 4, I-39100 Bolzano
Tel: +39 0471/564111 - (direct 564070)
Fax: +39 0471/564122
mailto:[EMAIL PROTECTED]
http://www.wuerth-phoenix.com
http://www.wuerth.com
