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VFB's avatar
VFB
Icon for Cirrus rankCirrus
Jan 06, 2016

http header and uri redirect

Hello, I'm attempting to construct an iRule that looks at a header and URI, then performs a redirect if they match. This is what I've attempted but unsuccessful. I have multiple redirects based on different headers and URI's, but this is a base of what I need to get started. Thanks in advance.

 

when HTTP_REQUEST { switch -glob [string tolower [HTTP::header]] contains "www.yahoo.com" and [HTTP::uri]] equals "/news" - "/weather" { HTTP::redirect "https://www.yahoo.com/login.aspx=0" } else { when HTTP_REQUEST { switch -glob [string tolower [HTTP::header]] contains "www.google.com" and [HTTP::uri]] equals "/news" - "/weather" { HTTP::redirect "https://www.google.com/login.aspx=0" } } }

 

application delivery
BIG-IP
iRules

2 Replies

  • cjunior's avatar
    cjunior
    Icon for Nacreous rankNacreous
    Jan 06, 2016

    Hi,

    Maybe I did not understood well, but, as you mentioned "multiple headers", have you a list of header names or you intend to look at any of them? I think I would do like this: 
    when HTTP_REQUEST { 
    switch -glob [string tolower [HTTP::uri]] {
        "/news*" - 
        "/weather*" {
            foreach name [list MyHeader1 MyHeader2 MyHeaderN] {
                switch -glob [string tolower [HTTP::header $name]] {
                    "*www.yahoo.com*" { 
                        HTTP::redirect "https://www.yahoo.com/login.aspx=0"
                        return
                    }
                    "*www.google.com*" { 
                        HTTP::redirect "https://www.google.com/login.aspx=0"
                        return
                    }
                }
            }
        }
    }
}

    or this for any header names:

    when HTTP_REQUEST { 
    switch -glob [string tolower [HTTP::uri]] {
        "/news*" - 
        "/weather*" {
            foreach name [HTTP::header names] {
                switch -glob [string tolower [HTTP::header $name]] {
                    "*www.yahoo.com*" { 
                        HTTP::redirect "https://www.yahoo.com/login.aspx=0"
                        return
                    }
                    "*www.google.com*" { 
                        HTTP::redirect "https://www.google.com/login.aspx=0"
                        return
                    }
                }
            }
        }
    }
}

    I'm not sure if that was what you wanted, anyway, I hope it helps you in some way.

  • Kai_Wilke's avatar
    Kai_Wilke
    Icon for MVP rankMVP
    Jan 06, 2016

    Hi VFB,

     

    could it be that you wanna parse the HOST-header for a given site name and then apply some redirects based on the a given URI? If so then this code would do the trick...

     

    when HTTP_REQUEST { 
    switch -exact -- [string tolower [HTTP::host]] "www.yahoo.com" {
        switch -exact -- [string tolower [HTTP::uri]] "/news" - "/weather" {
            HTTP::redirect "https://www.yahoo.com/login.aspx=0"
        } default {
            do nothing
        }   
    } "www.google.com" {
        switch -exact -- [string tolower [HTTP::uri]] "/news" - "/weather" {
            HTTP::redirect "https://www.google.com/login.aspx=0"
        } default {
            do nothing
        }
    } default {
         do nothing
    }
}

    BTW: If not, then elaborate some additional details on the "header" you want to parse.

     

    Cheers, Kai