Damian Krzeminski wrote:
Dennis Sinelnikov wrote:
Dear Fellow Tapestriers :),
I need to implement an EngineService that will return a specific file
living on a filesystem. I need to pass a parameter in the url that
specifies which file to return. I've searched the tapestry list serve
archives for an elegant solution, but nothing really caught my eye.
My initial thought was to do a one-way hash of the file and pass it
via the parameter in the url; when the url comes back the service
would "replicate" the process by comparing the hashes of all the files
and see which one matches; the one matches return to the user.
I'm curious to see what others are doing in securing urls from
malicious users. Sample code or any suggestions are greatly appreciated.
Thanks,
Dennis
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I was looking for elegant solution for that problem as well. I ended up
doing something similar to AssetService, which is I guess what you are
trying to do as well.
The code is here:
http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadService.java
http://scm.sipfoundry.org/rep/sipX/main/sipXconfig/web/src/org/sipfoundry/sipxconfig/components/DownloadLink.java
It's in subversion repository - you can get entire project from here:
http://scm.sipfoundry.org/rep/sipX/main/sipXconfig
If anybody comes up with something better I'd like to know that.
Damian
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Thanks Sam and Damian. I guess the answer was right in front of my nose
the whole time. ;)
-Dennis
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