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Rustic_57941's avatar
Rustic_57941
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Oct 17, 2013

Inserting "www" or redirecting to "www"

Hi,

 

My client has changed their back end servers from Coldfusion to Liferay. The Tomcat within the new Liferay only accepts "http://www.example.com" so when users try "http://example.com" it fails. So I wrote a basic iRule to redirect the users browser to use "www" in the request. Mostly it works fine, but the URI is lost and I'm really sure if this is the correct way to this.

 

Any suggestions?

 

Thanks!

 

iRule is:

 

when HTTP_REQUEST { set host [HTTP::host] if { [HTTP::host] equals "example.com" } { HTTP::respond 301 Location "http://www.$host/" } }

 

APM
application delivery
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microsoft
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4 Replies

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  • Rustic_57941's avatar
    Rustic_57941
    Icon for Nimbostratus rankNimbostratus
    Oct 17, 2013

    Was wondering if this would retain the URI: when HTTP_REQUEST { set host [HTTP::host] if { [HTTP::host] equals "example.com" } { HTTP::respond 301 Location "http://www.$host[HTTP::uri]" } }

     

  • Matt_Dierick's avatar
    Matt_Dierick
    Icon for Employee rankEmployee
    Oct 17, 2013

    You don't need to set a host variable. You can do something like that :

    when HTTP_REQUEST { 
    if {string tolower [HTTP::host] equals "example.com" } 
       { HTTP::respond 301 Location "http://www.[HTTP::host][HTTP::uri]" } 
       }

    This should work.

  • Michael_Yates's avatar
    Michael_Yates
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    Oct 17, 2013

    You will need to enclose the "string tolower" in brackets.

    when HTTP_REQUEST {
 if { [string tolower [HTTP::host]] equals "example.com" }{ 
     HTTP::respond 301 Location "http://www.[HTTP::host][HTTP::uri]"
 }
}
  • Rustic_57941's avatar
    Rustic_57941
    Icon for Nimbostratus rankNimbostratus
    Oct 17, 2013

    Thanks Michael - your version with the brackets works prefect.

     

    Rgds, Mark