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mnb_63148's avatar
mnb_63148
Icon for Nimbostratus rankNimbostratus
Feb 10, 2014
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Need assistance rewriting a hostname and appending a uri.

I am having trouble rewriting a hostname and appending a url.

 

Below is a sample of what I am trying to do:

 

The user is going to https://apples.com. I need to send the user to https://lemons.com without the customer seeing "lemons.com" in their browser via a redirect.

 

Also, if the user enters https://apples.com, I need to send them to https://lemons.com/fruit/TREE.html. If they enter https://apples.com/fruit/TREE.html, I need to redirect them to https://lemons.com/fruit/TREE.html.

 

Below is currently what I have as an iRule. If the user enters in the full url - https://apples.com/fruit/TREE.html, the site works. However, if they enter anything else, such as https://apples.com, they receive a blank page.

 

when HTTP_REQUEST {

 

if { [HTTP::uri] equals "/" } {

 

HTTP::header replace host "lemons.com" HTTP::uri "/fruit/TREE.html" } elseif { [HTTP::uri] equals "/TREE.HTML" } { HTTP::header replace host "lemons.com"

 

HTTP::uri "/fruit/TREE.html" } else { HTTP::header replace host "lemons.com" }

 

}

 

when HTTP_RESPONSE { HTTP::header replace [HTTP::host] lemons.com }

 

Any help would be greatly appreciated.

 

application delivery
devops
iRules
  • James_Deucker_2's avatar
    James_Deucker_2
    Feb 10, 2014

    Your HTTP_RESPONSE is incorrect and unnecessary, it's trying to replace the HTTP header called lemons.com with lemons.com if a Host header existed in the response, or killing the TCP connection with a RST and causing a blank page if the Host header didn't exist in the response. Have a look in /var/log/ltm for TCL Errors to determine what's happening.

    Case insensitive:

    when HTTP_REQUEST {
    switch [string tolower [HTTP::uri]] {
        "/" -
        "/tree.html" {
            HTTP::uri "/fruit/TREE.html" 
        }
    }
    HTTP::header replace Host "lemons.com" 
}

    Case sensitive:

    when HTTP_REQUEST {
    switch [HTTP::uri] {
        "/" -
        "/TREE.HTML" {
            HTTP::uri "/fruit/TREE.html" 
        }
    }
    HTTP::header replace Host "lemons.com" 
}

3 Replies

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  • Kevin_Stewart's avatar
    Kevin_Stewart
    Icon for Employee rankEmployee
    Feb 10, 2014

    Try this:

    when HTTP_REQUEST {
     catch blank URI
    if { not ( [string tolower [HTTP::uri]] starts_with "/fruit" ) } {
        HTTP::redirect "http://[HTTP::host]/fruit/TREE.html"
    }

     replace Host header
    HTTP::header replace Host "lemons.com"       
}
  • James_Deucker_2's avatar
    James_Deucker_2
    Historic F5 Account
    Feb 10, 2014

    Your HTTP_RESPONSE is incorrect and unnecessary, it's trying to replace the HTTP header called lemons.com with lemons.com if a Host header existed in the response, or killing the TCP connection with a RST and causing a blank page if the Host header didn't exist in the response. Have a look in /var/log/ltm for TCL Errors to determine what's happening.

    Case insensitive:

    when HTTP_REQUEST {
    switch [string tolower [HTTP::uri]] {
        "/" -
        "/tree.html" {
            HTTP::uri "/fruit/TREE.html" 
        }
    }
    HTTP::header replace Host "lemons.com" 
}

    Case sensitive:

    when HTTP_REQUEST {
    switch [HTTP::uri] {
        "/" -
        "/TREE.HTML" {
            HTTP::uri "/fruit/TREE.html" 
        }
    }
    HTTP::header replace Host "lemons.com" 
}
  • mnb_63148's avatar
    mnb_63148
    Icon for Nimbostratus rankNimbostratus
    Feb 11, 2014

    Thanks Kevin and James for the quick responses!

     

    I ended up using what both of you recommended.

     

    when HTTP_REQUEST

     

    { if { [HTTP::uri] equals "/" or [HTTP::uri] equals "/TREE.HTML" }

     

    { HTTP::respond 301 "Location" "https://lemons.com/fruit/TREE.html" }

     

    else { HTTP::header replace Host "lemons.com"

     

    pool lemons.com_pool } }