Hi I looked into the source of tomcat 7 (7.0.x trunk) to extend it to support wildcard aliases (such as *.example.com). I found the class org.apache.tomcat.util.http.mapper.Mapper. Looking at it, I found a small bug (lines 210-213):
if (pos < 0) {
log.error("No host found: " + hostName);
}
Host mappedHost = hosts[pos];
This can of course raise an IndexOutOfBoundsException.
But that's not the point of this mail.
I have non-optimal patch that extends the feature I need but that patch is
not optimal.
Is there any interest for that feature in the community and any chance to
get such a patch accepted into the codebase?
Then I would do some cleanups and improvements and publish the patch.
I would do with the following constraints:
- Wildcards would be automatically detected. (Just use hostnames starting
with "*.")
- As long as no wildcards are defined, there would be no performance penalty
for the patch.
- Wildcard processing would be as fast as possible.
- Wildcards would match any number of subdomains (*.example.com would match
a.b.c.d.example.com, but not example.com)
- Direct matches would always have precedence as do narrower wildcards.
Still open for suggestions.
So again:
Is there any interest for that feature in the community and any chance to
get such a patch accepted into the codebase?
Regards,
Steffen
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