stripping data

Like this:

 
 [getfield [HTTP::host] ".domain.com" 2] 
 

when HTTP_REQUEST {

 

HTTP::redirect https://www.domain1.com/nsa/+homePage=[getfield [HTTP::host] ".domain.com" 2]

 

}

 

 

 

 

that correct?? bc it does not work.... i just get

 

https://www.domain1.com/nsa/+homePage=

also would like to try and put in an if statement, if it has www, strip it off, if not, just forward with the domainname.

so this is what ive come up with..

 

 

 

when HTTP_REQUEST {

 

if {[getfield [HTTP::host] ".domain.com" 1] eq "www" }

 

{HTTP::redirect https://www.domain1.com/nsa/+homePage=[getfield [HTTP::host] ".domain.com" 2]

 

}

 

else {HTTP::redirect https://www.domain1.com/nsa/+homePage=[HTTP::host]}

 

}

 

 

 

the non www is working.. the www is not.. any ideas?

also.. the domain.com could be anything not just a single domain, so i need to check all incoming www.?

 

not just www.domain.com

ahhhhh...

 

 

 

SOLUTION:

 

 

when HTTP_REQUEST {

 

if {[getfield [HTTP::host] "." 1] starts_with "www" }

 

{HTTP::redirect https://www.domain.com/nsa/+homePage=[getfield [HTTP::host] "." 2].[getfield [HTTP::host] "." 3]}

 

else {HTTP::redirect https://www.domain.com/nsa/+homePage=[HTTP::host]}

 

}

In this example you are doing the getfield twice which is causing double string allocations. If all you want to do is check whether a "www." is prefixing your domain, you can do so with the "starts_with" operator. And then, since you know you want to strip off the first 4 characters, you can use the "string range" command to do that.

 

 

This code will set a variable to the value of the requested HTTP::host. If that value starts with a "www.", it will strip the "www." off and assign that to the variable. It will then issue a redirect with either the original or stripped host value.

 

 

when HTTP_REQUEST { 
   set host [HTTP::host] 
   if { [HTTP::host] starts_with "www." } { 
     set host [string range [HTTP::host] 4 end] 
   } 
   HTTP::redirect "https://www.domain1.com/nsa/+homePage=$host" 
 }

 

 

Is this what you are going for?

 

 

Oh, BTW, make sure you don't have this iRule on your www.domain1.com virtual or you'll get yourself into an infinite loop.

 

 

-Joe

Since it is fun we are after, how is this:

 

 

when HTTP_REQUEST {

 

HTTP::redirect "https://www.domain1.com/nsa/+homePage="+[regsub {^www\.} [HTTP::host] ""]

 

}

 

 

If i got all the synthax correct, regsub should remove www. if it finds it, if it does not, it should return [HTTP::host} as is.

 

 

John

Ouch, please let's not go with regsub to solve such a simple problem. Very pretty all on one line & everything, but very expensive command to invoke regardless how simple the operation itself might be.

Why not simply use the "domain" command:

 
 when HTTP_REQUEST {  
      HTTP::redirect "https://www.domain1.com/nsa/+homePage=[domain [HTTP::host] 2]"      
  }

which will return only the last 2 parts of any domain name.

If you truly need to operate only on those domains with www. prefix, then use the starts_with operator to condition the change as in colin's example:

  
  when HTTP_REQUEST {  
     if { [HTTP::host] starts_with "www." } {        
        HTTP::redirect "https://www.domain1.com/nsa/+homePage=[domain [HTTP::host] 2]"      
     } else {       
         HTTP::redirect "https://www.domain1.com/nsa/+homePage=[HTTP::host]"        
     }       
  }

/deb

oh, that was ugly.

 

re-submitted, hopefully you can read it now...