Host mapping is done by o.a.t.u.http.mapper.Mapper. This is critical-path stuff, so I'd likely be -1 to adding regexp here, unless it was optional and off by default.
----- Original Message ----- From: "George Sexton" <[EMAIL PROTECTED]> To: "'Tomcat Developers List'" <tomcat-dev@jakarta.apache.org> Sent: Friday, April 22, 2005 9:38 AM Subject: Wild Card Aliases - Help Following Source Code > I'm hoping someone can help me follow the source code. I'd like to lok at > adding a feature, but I keep getting turned around when I try to follow the > object hierarchy.b b > > Basically what I want to do is add wild-card aliases. > > I have a web calendar application. At a customer request, I have added a > feature that allows one instance of my application to display different sets > of calendars to users depending upon the host name that is used to hit the > site. Internally, my application uses a different GUEST user based on the > host name presented. > > Since we host this particular customer, it would be really nice if we could > set it up so that any requests for domain.xxx, regardless of the rest of the > host name would be forwarded to his application. > > We host about 45 people on this machine so going with a dedicated IP and > making that host the default host that IP address won't really work. Each > customer that we host has their own unique virtual host. So far, Tomcat is > handling this really well. We are not using Apache as a front-end, and would > really rather not. Adding apache would double our administration effort for > deploying hosts. > > Adding wild-card virtual host aliases would neatly solve this problem. > > Where I'm having a problem understanding the source, is determining how the > correct host is picked to forward the request into. If I could understand > the flow I could probably sort out how to add support for this and submit it > as a patch. > > The implementation I used within my application is, I think pretty efficient > and doesn't add a lot of overhead. Basically, internally the steps I follow > are: > > Lookup the host name in a Hashmap. > > Is this a new virtual host? > > No, return the associated user. > > Yes, this is new > > get the list of virtual host names > > iterate over the list trying a string match > and regular expression match for each > configured entry. > > When a match is found, sort the user name > in the hash table, using the host name as > the key. > > If no match is found, return the default name. > > Return the correct user. > > > This implementation lets me only go through the pain of trying to do a > string or regular expression match the first type a new host name is > presented. > > > > > > George Sexton > MH Software, Inc. > http://www.mhsoftware.com/ > Voice: 303 438 9585 > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > This message is intended only for the use of the person(s) listed above as the intended recipient(s), and may contain information that is PRIVILEGED and CONFIDENTIAL. If you are not an intended recipient, you may not read, copy, or distribute this message or any attachment. If you received this communication in error, please notify us immediately by e-mail and then delete all copies of this message and any attachments. In addition you should be aware that ordinary (unencrypted) e-mail sent through the Internet is not secure. Do not send confidential or sensitive information, such as social security numbers, account numbers, personal identification numbers and passwords, to us via ordinary (unencrypted) e-mail.
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