remapping dynamic subdomain

gregerly · #1 May 27th, 2009, 09:58 AM

Hi, I'm working on a web app and want to be able to offer my users a URL such as:

username.mydomain.com

but have it map to:

mydomain.com/controller/method/username

FYI, I'm using codeigniter PHP framework, which should explain the above URL I need to map to.

I'm thinking this should be done with mod_rewrite, and I've tried various method to no avail. Any ideas on how to go about this?

Thanks for any insights!

Greg

Markus · #2 May 30th, 2009, 06:36 PM

I'm afraid you'll likely need access to the server's setup. No idea how you'd go about it, though.

gregerly · #3 May 30th, 2009, 06:45 PM

Hey Markus,

I have a vps, so I can do what ever. I'm just not sure exactly how to set it up. I added a wildcard domain, so all subdomains resolve, I just need the .htaccess to pick up the slack.

I actually had something working OK, but it redirected all subdomains. There are some I do not want redirected, like the main application, the demo version, the dev version, etc...all which are on their own subdomain.

So I need like a list of domains not to remap, and anything else should get kicked to a specific url.

Thanks for your reply!

Greg

Markus · #4 May 30th, 2009, 07:20 PM

You can use the RewriteCond stuff for that. Something like this (untested):

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RewriteCond %{HTTP_HOST} !^sub1.site.com

I will do some testing to find the correct syntax.

gregerly · #5 May 30th, 2009, 07:23 PM

Hey no problem Markus, I appreciate your input. Ok, so it's fairly simple it looks like, I think the hardest part is figuring out how to phrase the google query to find what I'm looking for. I should have guessed it would be ! (not) this domain.

I'll see what I can work out with this. Thanks again!

Greg

Markus · #6 May 30th, 2009, 07:51 PM

I think my above syntax is correct. For multiple sites, you could do this:

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RewriteCond %{HTTP_HOST} !^sub1.site.com

RewriteCond %{HTTP_HOST} !^sub2.site.com

RewriteCond %{HTTP_HOST} !^sub3.site.com

# etc..

# And then your rewrite rule.

n8kindt · #7 June 21st, 2009, 10:42 AM

i just spent all day trying to figure this one out for myself. i started off not even knowing how to use regex to feeling like a guru on this one. i pieced this information from the internet and it has nothing to do with codeigniter but it works for me. like i said i'm still a beginner so any critique of this code is welcome

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 #quietly redirect subdomain user profile requests

RewriteCond %{ENV:REDIRECT_STATUS} ^$

RewriteCond %{REQUEST_URI} !(/.+)$

RewriteCond %{HTTP_HOST} ^([a-z-]+)\_([a-z-]+)/*\.thedomain\.com$ [NC]

RewriteRule ^(.*)$ /profile/?first=%1&last=%2 [QSA,L]
 
#ensure links go to the right place so css, js, etc work

RewriteCond %{HTTP_HOST} !^([a-z-]+)\_([a-z-]+)/*\.thedomain\.com [NC]

#also, if not a subdomain add www. for ssl cert (not completely necessary)

RewriteCond %{HTTP_HOST} !^www\.thedomain\.com [NC]

RewriteRule ^(.*)$ http://www.thedomain.com/$1 [R=301,L]

so http://ann-marie_jones.thedomain.com
displays http://www.thedomain.com/profile/?first=ann-marie&last=jones

as long as a wildcard subdomain is set up, this code should be good to go

remapping dynamic subdomain

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/bytes/development

/bytes/it

/bytes/about