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Redirect "myapp.com" to "www.myapp.com" in rails without using htaccess?


Using Morph Labs' Appspace to deploy a site means no automated way to redirect 'myapp.com' to 'www.myapp.com' (and no access to .htacess).



Is there an in-rails way to do this? Would I need a plugin like subdomain-fu ?



More specifically, I'm trying to do something like:



  • 'myapp.com' => 'www.myapp.com'

  • 'myapp.com/session/new' => 'www.myapp.com/session/new'



Basically, I always want the 'www' subdomain prepended on every request (because the SSL cert specifically has a common name of 'www.myapp.com').


Source: Tips4allCCNA FINAL EXAM

Comments

  1. Maybe something like this would do the trick:

    class ApplicationController < ActionController::Base
    before_filter :check_uri

    def check_uri
    redirect_to request.protocol + "www." + request.host_with_port + request.request_uri if !/^www/.match(request.host)
    end
    end

    ReplyDelete
  2. Carson's answer works great.

    Here's the code to go the other way (www -> no www)

    before_filter :check_uri

    def check_uri
    if /^www/.match(request.host)
    redirect_to request.protocol + request.host_with_port[4..-1] + request.request_uri
    end
    end

    ReplyDelete
  3. This worked great for me. I did make one small addition as I only wanted this behavior in my production environment:

    def check_uri
    redirect_to request.protocol + "www." + request.host_with_port + request.request_uri if !/^www/.match(request.host) if Rails.env == 'production'
    end

    ReplyDelete
  4. I know this is answered, but I thought everyone else should know about the CodeRack: Canonical Host solution. This is really nice as it allows for env specific redirects. http://coderack.org/users/tylerhunt/middlewares/6-canonical-host

    ReplyDelete
  5. I had to change Carson's answer to get this to work in Rails 3. I replaced request.uri with request.fullpath:

    class ApplicationController < ActionController::Base
    protect_from_forgery

    Rails.env.production? do
    before_filter :check_url
    end

    def check_url
    redirect_to request.protocol + "www." + request.host_with_port + request.fullpath if !/^www/.match(request.host)
    end
    end

    ReplyDelete

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