Re: Urgent : Can we restrict access to a directory in tomcat

[Jacob Kjome]

I don't know why this would be any slower than tomcat itself?  Tomcat 
serves images by loading them as a stream from the default servlet and 
returns them to the browser.  It all depends on how you implement this.  It 
very well could be faster than Tomcat itself since a servlet dedicated to 
serving images might be even faster than a Tomcat's default servlet which 
must take care of serving all kinds of files and, therefore, probably has 
more overhead.

Jake

At 09:52 AM 6/9/2003 -0400, you wrote:

Could you just put all of the images under WEB-INF, and use a special 
servlet to get them?

The source attribute of the IMG tag would be something like 
/servlet/imgGetter?image=someUniqueKey.

The servlet would just retrieve the image from the WEB-INF directory, and 
spool it out as a stream.

I'm not sure on the performance, though.  High-traffic might be a problem.

John

On Mon, 9 Jun 2003 09:43:48 -0400, Shapira, Yoav <[EMAIL PROTECTED]> wrote:

Howdy,
That one's tricky (and strange).  When you have a servlet or JSP, the
output the user sees is HTML.  In HTML, you have <img> tags.  The
browser will request those images normally in HTTP requests.  So from
the server's perspective, the request is the same whether the user types
in the image URL or you embed it in one of your pages.
Would something like using a mangled images directory name ($KF_%# or
something) be sufficient?  A name that's hard for users to guess and use
directly?
Yoav Shapira
Millennium ChemInformatics

-----Original Message-----
From: Syed Nayyer Kamran [mailto:[EMAIL PROTECTED]
Sent: Monday, June 09, 2003 9:33 PM
To: [EMAIL PROTECTED]
Subject: Urgent : Can we restrict access to a directory in tomcat
hi there,

I want to restrict the user to access the images directly through the
web.
They should be able to access these images through web pages developed
as
jsp/servlet but should not be able to access these images displayed on
page
by copying the image url to the address bar. Is tomcat directly support
this functionality. or any other solution.
Thanks in advance for any solution of the problem.

Nayyer Kamran




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