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Damien_Turner_1's avatar
Damien_Turner_1
Icon for Nimbostratus rankNimbostratus
Aug 02, 2010

Redirect if your a mobile user....

Hi all, I was wondering if I could have some help! I have been asked if it is possible to use an iRule to redirect a mobile user to a new URL. An example would be.... user on an iPhone goes to www.mysite.com but as they are a mobile user the URL gets changed to m.mysite.com and the correct formatted site is then shown. I've looked through quite a few similar topics but none seem to redirect the URL. I have a a pool of web servers but they serve all traffic, but I guess I could create anther pool. I'm still quite new to iRules but I know they rule! Thank You Damien
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  • Chris_Miller's avatar
    Chris_Miller
    Icon for Altostratus rankAltostratus
    Aug 02, 2010
    Damien,

    The first thing you need to do is implement the logic for your rule to detect whether the user is an iPhone. For this, you'll use the HTTP::header command to query the "User-Agent" header.

    http://devcentral.f5.com/wiki/default.aspx/iRules/HTTP__header.html

    You'll do an iRule like this and put it on your www.mysite.com VIP 

    
when HTTP_REQUEST {
   if {  [HTTP::header "User-Agent"] contains "iPhone"]  } {
      HTTP::redirect "http://m.mysite.com" }
}

    When you want to do more than just iPhones, you'll want to create a "datagroup" which contains all types of phones and reference that instead of just the string "iPhone"

    Shall I assume the VIP to which m.mysite.com points has a pool of web servers setup to render mobile-specific content?
  • Damien_Turner_1's avatar
    Damien_Turner_1
    Icon for Nimbostratus rankNimbostratus
    Aug 03, 2010
    Hi Chris thank you for replying.

    Your right the VIP point to the same servers but will display a different site as the incoming domain will be different.

    If I want to use a datagroup would it look like this.... 

     when HTTP_REQUEST { 
 if { [HTTP::header "User-Agent" ] equals $::MobileUserAgents } { 
 HTTP::redirect "http://mobile.holidayextras.co.uk" } 
  
 Uncomment the line below to turn on logging. 
 log local0.  " Mobile Redirected" 
 } 
  
 The datagroup then has string *iPhone* *iPad* etc 
  
 My iRule editor said it has passed the checker which is always a good sign! 
  
 Regards 
 Damien
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Aug 03, 2010
    If you change equals to contains that should work. If you're on 9.4.4 or higher, you should remove the $:: prefix from the reference to the datagroup name in the iRule. You might also want to preserve the originally requested URI in the redirect using 'HTTP::redirect "http://mobile.example.co.uk[HTTP::uri]".

     

     

    Aaron
  • Damien_Turner_1's avatar
    Damien_Turner_1
    Icon for Nimbostratus rankNimbostratus
    Aug 04, 2010
    Hi Aaron thank you for helping me again, I have made the changes so my rule now looks like this....

     

    when HTTP_REQUEST { 
 if { [HTTP::header "User-Agent" ] contains $::MobileUserAgents } { 
 HTTP::redirect "http://mobile.holidayextras.co.uk[HTTP::uri]"  
 log local0. "iPhone Found" 
 } 
  
 Uncomment the line below to turn on logging. 
 log local0.  "Mobile Redirected: [HTTP::header "User-Agent"] -Phone Redirected" 
 }code] 
  
 My DataGroup is a string with.... 
 *iPhone* 
 *iPad* 
 *iPod* 
 I like My Apple stuff! 
  
 But the iRule dosn't seem to be working as nothing is being written to the log, if I turn on the global log I can see iPhone user agents passing through.... 
  
  
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A306 Safari/6531.22.7 -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A306 Safari/6531.22.7 -Phone Redirected 
 Aug  4 09:33:17 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A306 Safari/6531.22.7 -Phone Redirected 
 Aug  4 09:33:18 tmm tmm[1800]: Rule Mobile_UserAgent_Redirect_iRule : Mobile Redirected: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729) -Phone Redirected 
  
 I'm confused! 
  
 Also you said if I'm running 9.4.4 then I should remove the $:: from the datagroup, I have 9.4.8 HF4 running but it wont let me take out the $::, when I try and pass the rule through the irule editor it keeps telling me my irule is invalid. 
  
 Thank you for your help guys!
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Aug 04, 2010
    Hi Damien,

     

     

    Sorry I missed it before. Can you use matchclass to check the datagroup?

     

     

    if { [matchclass [HTTP::header "User-Agent" ] contains $::MobileUserAgents] } {

     

     

    Aaron
  • Damien_Turner_1's avatar
    Damien_Turner_1
    Icon for Nimbostratus rankNimbostratus
    Aug 04, 2010
    Hi Aaron, I missed that one too!

    Now looks like this... 

    when HTTP_REQUEST { 
 if {[matchclass [HTTP::header "User-Agent" ] contains $::MobileUserAgents] } { 
 HTTP::redirect "http://m.holidayextras.co.uk[HTTP::uri]"  
 log local0. "iPhone Found" 
 } 
  
 Uncomment the line below to turn on logging. 
 log local0.  "Mobile Redirected: [HTTP::header "User-Agent"] -Phone Redirected" 
 } 
  
 But its not picking up my iphone, could I have the information in the dataclass wrong?
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Aug 04, 2010
    Can you remove the * from the datagroup entries? Those will be interpreted literally--not as wildcards.

    Are you on 9.4.4 or higher? If so, can you also remove the $:: prefix from MobileUserAgents?

    Else, can you add logging to the rule and check /var/log/ltm for the output: 

    
when HTTP_REQUEST {

   log local0. "[IP::client_addr]:[TCP::client_port]: UA: [HTTP::header "User-Agent"]"

   if {[matchclass [HTTP::header "User-Agent"] contains $::MobileUserAgents] } {
      HTTP::redirect "http://m.holidayextras.co.uk[HTTP::uri]"
      log local0. "[IP::client_addr]:[TCP::client_port]: UA: [HTTP::header "User-Agent"], redirecting"
   }
}

    Aaron
  • Damien_Turner_1's avatar
    Damien_Turner_1
    Icon for Nimbostratus rankNimbostratus
    Aug 04, 2010
    Hi Aaron, taking the * out of the datagroup fixed it, the iRule now see's my iPhone and redirects.

     

     

    I have tried to take out the $:: but my LTM keeps saying the iRUle is invalid if I do so, I'm on version 9.4.8 HF4, when I put $:: the iRule passes without a problem.
  • pmaubo2_55685's avatar
    pmaubo2_55685
    Icon for Nimbostratus rankNimbostratus
    Oct 29, 2012
    Hi,

     

     

    I am doing somewhat the same, the only thing different is if I have an iphone come in I want to direct to one site and if it's an Android then I want it to direct to a different site.

     

  • Nicolas_Pla_681's avatar
    Nicolas_Pla_681
    Icon for Nimbostratus rankNimbostratus
    Oct 29, 2012
    Hi, i have a list of almost all mobile devices in this irule. hope that you find it usefull

     

     

    if {[HTTP::header User-Agent] matches_regex "(Android|iP(hone|od)|Symbian|BlackBerry|Opera M(ini|obi)|IEMobile|GoBrowser|Blazer|BOLT|Fennec|Iris|Maemo|MIB|Minimo|NetFront|SEMC-Browser|Skyfire|TeaShark|Teleca|uZard)"}{

     

    HTTP::respond 301 Location "http://m.your.site.com"}

     

    }