File downloading with cocoon

[Andre Juffer]

Hi,

I am having some trouble with the following. I want users to be able to download some zip (or any type) files. So, I have put in the sitemap the following:

<map:match pattern="course-material/**.zip">
<map:act type="action-retrieve-lecture-notes">
<map:read type="resource" src="LectureNotes/{../1}.zip" mime-type="application/zip" />
</map:act>
<map:redirect-to uri="../lecture-notes" />
</map:match>

The action simply checks if the user is allowed to access the zip files. And if not, the user is being redirected to a login page (../lecture-notes). This login form makes use of the same action (action-retrieve-lecture-notes), which also ensures that the user is pointed to the appropriate file that is to be downloaded (and this depends on some login information, including a course id).

All this works quite nicely, except that the <map:read> does not really start up a download process. That is, it causes all the steps necessarily and the user is being asked what to do with the file (save it, open it, etc) like any other download process, but the file that is being downloaded has a file size of zero. But the file that is accessed locally is the correct one: I have checked the cocoon log files. There is no problem with the file itself (I have placed it into a publically accessible location served directly by the Apache webserver and had no problems with downloading the file.)

So what to do? I was thinking that it is maybe some caching issue. Some of the files to be downloaded can be fairly large (there is one file of about 20 Mb).

I am using cocoon-2.0.4, java 1.4.0_01 and Tomcat 4.0.4.

Thanks for any help.

--
Andre H. Juffer | Phone: +358-8-553 1683
The Biocenter and | Fax: +358-8-553-1141
the Dep. of Biochemistry | Email: [EMAIL PROTECTED]
University of Oulu, Finland | WWW: http://www.biochem.oulu.fi/Biocomputing/


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