Jesse Klaasse wrote:
[snip]
Now, we try the whole link through the JK connector:
http://localhost/webapp/test[brackets].jsp
This doesn't work, and results in a 404 error (appearing in both IIS and
Tomcat's log as test%5Bbrackets%5D.jsp, Tomcat with a 404, IIS with a
200).
Thanks for the excellent problem description.
It would appear (from the logs), that there is some double-encoding of
the URI going on.
To simplify, I will assume that you are starting from a static html
page, loaded in your browser from the local disk, and that this html
page contains a link written as href="http://.../test[brackets].jsp";.
(Please check this. I know it seems evident, but just to make sure that
you are not starting from a URl that already has the [ ] pre-encoded..)
I will also assume that %5B and %5D are the correct "% hex hex" encoding
for the characters "[" and "]" respectively.
What *should* happen is :
- when you click on the link, the browser should encode it into
"http://.../test%5Bbrackets%5D.jsp"; *before* sending it to the server.
That is because "[" and "]" are not within the acceptable ranges for
unencoded URI characters, and it is normal.
- the server, when receiving this URL, should (immediately) decode it
back into ".../test[brackets].jsp"; and that should also be what is
processed, and logged.
But, if somewhere along the line, a piece of code was receiving the
encoded URI "http://.../test%5Bbrackets%5D.jsp";, and decided to
re-encode it again using the "% hex hex" method, then you would get this
URI : "http://.../test%255Bbrackets%255D.jsp"; (where "%25" is the
encoded version of "%").
Then the next step would decode this URI back into
"http://.../test%5Bbrackets%5D.jsp";, and that is what the server would
try to access, what would be logged, and also what you seem to experience.
So, which is the culprit which re-encodes something it should not ?
And is there not some parameter somewhere which forces it to do so ?
André
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