Seeking .htaccess help: Converting multiple subdomains (both HTTP and HTTPS) to www.domain.com using .htaccess

Seeking .htaccess help: Converting multiple subdomains (both HTTP and HTTPS) to www.domain.com using .htaccess - .htaccess files are extremely useful in many cases for users who either do not have root permissions or for users who simply aren't comfortable in making changes in their web server's configuration file. Trying to debug .htaccess not working isn't always the easiest thing to do, however, hopefully by checking the discuss below mentioned about apache, htaccess, redirects, subdomain, .htaccess common problems as well as the troubleshooting tips, you'll have a better grasp on what you may have to modify to get your .htaccess file running smoothly.Problem :

I've been trying to get an answer to this question on other forums (the folks at SuperUser thought this was the place I needed to post) and via my connections, but I haven't gotten very far. Hopefully you guys can help me find an answer.

I've got a dozen old subdomains that have been indexed by Google. These have been indexed as both HTTP AND HTTPS.

I've managed to redirect all the subdomains properly, provided they are not HTTPS, but can't get any of the HTTPS subdomains to property redirect.

Here's the code I'm using:

RewriteCond %HTTP_HOST ^subdomain1.mysite.com$ [NC]
RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L]

RewriteCond %HTTP_HOST ^subdomain2.mysite.com$ [NC]
RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L]

RewriteCond %HTTP_HOST ^subdomain3.mysite.com$ [NC]
RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L]

This works great until someone goes to:

https://subdomain2.mysite.com$ 
which is not redirected back to http://www.mysite.com$

How can I get this to work? Additionally, I'm guessing there is an easier way to make it happen than setting up a dozen pairs of RewriteCond/RewriteRule? Is there any way to do this in just a few lines, including one where I list all the subdomains?

I'd actually also like to redirect everything on https://www.mysite.com$ to http://www.mysite.com$ except for 3 folders.

These are mysite.com/secure, mysite.com/store, mysite.com/user. Is there any good way to add this to the .htaccess file?

Solution :

About not repeating for each subdomain - shouldn't this work?

RewriteCond %HTTP_HOST ^.+.mysite.com$ [NC]
RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L]

Additionally, if you would like to do some further testing, give the htaccess tester tool a try. It allows you to specify a certain URL as well as the rules you would like to include and then shows which rules were tested, which ones met the criteria, and which ones were executed.