mobile detection for coldfusion

Question

Is there a way to detection if a user is on a mobile device using just coldfusion only?

1. I'm not doing a mobile redirect.
2. I am using CSS media queries to change the layout to fit screen width.
3. I just want to do a simple if mobile render this information else render this information instead to parts of the site not the whole thing. (ex: if mobile [show jquery animation] else show [link])
4. I don't want to waste time rendering both if only to do a display none to the info not going to be shown anyways.
5. No javascript mobile detection (people might have javascript off on their browsers)

Answer 1

I used the code up at http://detectmobilebrowsers.com/ to do this. They keep the regex pretty current. The about page there has details on tablets if you need that as well as mobile. Drop if in a UDF function in order to easily keep it up-to-date on further changes.

The CFM version:

<cfif reFindNoCase("android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino",CGI.HTTP_USER_AGENT) GT 0 OR reFindNoCase("1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|e\-|e\/|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|xda(\-|2|g)|yas\-|your|zeto|zte\-",Left(CGI.HTTP_USER_AGENT,4)) GT 0>
   <cflocation url="http://mobile.yoururl.com">
</cfif>

Answer 2

I wrote a blog entry about this very thing!

http://www.mccran.co.uk/index.cfm/2010/6/4/Simple-Coldfusion-script-to-detect-if-a-user-is-on-a-Mobile-platform

<cfif findNoCase('Android', cgi.http_user_agent,1)>
<!--- relocate to Android version of the mobile site --->
<cflocation url="android/">
<cfelseif findNoCase('iPhone', cgi.http_user_agent,1)>
<!--- relocate to iphone version of the mobile site --->
<cflocation url="iphone/">
</cfif>

You can easily detect the browser from the user agent string. Tho as I've experienced recently browsers like chrome will allow you to change your user agent string:

http://www.mccran.co.uk/index.cfm/2011/9/25/Samsung-Galaxy-Tab-101-Switching-your-browser-from-mobile-view