irule based redirection issue

Your irule can't be good with IF ELSEIF ... There is 301 in the first and redirect in the 2 following.

Please let us know what do you want exactly.

there's one extra negation in your condition. please look at my previous post for the correct one.

Currently client sends URL request mylocalnet.us which is redirected to https with www code which is code 301. Once redirected to https://www.mylocalnet.us it is offloaded on ltm and request is sent to Web Server. Web server responds 302 https://www.mylocalnet.us/pages/variationroot.aspx which is used for language detection. If FR detected, server replies https://www.mylocalnet.us/fr/pages/default.aspx or with /en per language support. Actual purpose is to avoid multiple redirections on server side and perform these operations on ltm to expedite response time. Sharing with you unmodified code.

    when HTTP_REQUEST {

         STREAM::disable
         redirect atd requests to atd site
    if { [string tolower [HTTP::path]] equals "/atd/atd.xml" } {

     HTTP::respond 301 "Location" "https://atd.mylocalnet.us/atd/atd.xml"

         redirect http://mylocalnet.us to https://www.mylocalnet.us along with any uri
 } elseif { [string tolower [HTTP::host]] equals "mylocalnet.us" } {
    HTTP::respond 301 "Location" "https://www.mylocalnet.us[string tolower [HTTP::uri]]"
} 
  switch -glob [string tolower [HTTP::path]] {
            "/en/sitemap.xml*" {
            HTTP::uri "/en-sitemap.xml"
            }
            "/fr/sitemap.xml*" {
            HTTP::uri "/fr-sitemap.xml"
            }  
             }
             }
        when HTTP_RESPONSE {
         catch and replace redirect headers
        if { [HTTP::header exists Location] } {
    HTTP::header replace Location [string map {"http://" "https://"} [string tolower [HTTP::header Location]]]
     } 
    only look at text data
        if { [HTTP::header Content-Type] contains "text" } {
  create a STREAM expression to replace any http:// with https:// for CDN
STREAM::expression {@http://bt.mylocal.ae@https://bt.mylocal.ae@ @www.mylocalnet.us@ @http://www.mylocalnet.us@https://www.mylocalnet.us@}
            enable STREAM
            STREAM::enable
        }
    }

OK, something like that. If starting page is "/" check language and redirect to the right URI.

when HTTP_REQUEST {
    if { [string tolower [HTTP::path]] equals "/" } {
        if { ![HTTP::path] starts_with "/fr" && ([HTTP::header "Accept-Language"] starts_with "fr") } {
            HTTP::redirect "https://www.mylocalnet.us/fr/pages/default.aspx"
        }
        else { 
            HTTP::redirect "https://www.mylocalnet.us/en/pages/default.aspx" 
        }
    }
}

Matthieu, please ignore my ignorance. If you could adjust in existing rule since else or if is having deprecated irule error so not able to make the changes. my apologies.

Like that

when HTTP_REQUEST {

     STREAM::disable
     if { [string tolower [HTTP::path]] equals "/" } {
            if { ![HTTP::path] starts_with "/fr" && ([HTTP::header "Accept-Language"] starts_with "fr") } {
                HTTP::redirect "https://www.mylocalnet.us/fr/pages/default.aspx"
            }
            else { 
                HTTP::redirect "https://www.mylocalnet.us/en/pages/default.aspx" 
            }
        }

        switch -glob [string tolower [HTTP::path]] {
            "/en/sitemap.xml*" {
                HTTP::uri "/en-sitemap.xml"
            }
            "/fr/sitemap.xml*" {
                HTTP::uri "/fr-sitemap.xml"
            }  
        }
      }

    when HTTP_RESPONSE {
         catch and replace redirect headers
        if { [HTTP::header exists Location] } {
            HTTP::header replace Location [string map {"http://" "https://"} [string tolower [HTTP::header Location]]]
        } 
          only look at text data
        if { [HTTP::header Content-Type] contains "text" } 
             create a STREAM expression to replace any http:// with https:// for CDN
            STREAM::expression {@http://bt.mylocal.ae@https://bt.mylocal.ae@ @www.mylocalnet.us@ 
    @http://www.mylocalnet.us@https://www.mylocalnet.us@}
             enable STREAM
            STREAM::enable
        }
    }

I have applied the irule and below is the result. Not sure where the logic is not getting matched in it. Good thing is Loop is stopped but i see only one Get request in a debug after which loop breaks and aborted and redirected to https by ltm . Web page not found in browser . Below is output for your reference.

URLProtocolMethodResultTypeReceivedTakenInitiatorWait‎‎Start‎‎Request‎‎Response‎‎Cache read‎‎

http://mylocalnet.us/HTTPGET301143 B94 msnavigate0781600234

https://www.mylocalnet.us/HTTPS(Aborted)0 B187 msnavigate9418700047

Details of Above Messages:
Request
--------------------------
Request               GET / HTTP/1.1
Accept           text/html, application/xhtml+xml, */*
Accept-Language  fr,en;q=0.7,en-US;q=0.3
User-Agent           Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
Accept-Encoding  gzip, deflate
Host             mylocalnet.us
Connection       Keep-Alive
Cache-Control    no-cache

Response
--------------------------
Response             HTTP/1.0 301 Moved Permanently
Location             https://www.mylocalnet.us/
Server           BigIP
Connection           Keep-Alive
Content-Length   0

OK, the redirection is done by another iRule I suppose. On Virtual Server port 80. When connection arrives on 2nd Virtual Server port 443, you see a Aborted ???

I made a mistake. Try this by getting https://www.mylocalnet.us/ with an FR and an EN browser.

   when HTTP_REQUEST {

 STREAM::disable
 if { [string tolower [HTTP::path]] equals "/" } {
        if { [HTTP::header "Accept-Language"] starts_with "fr" } {
            HTTP::redirect "https://www.mylocalnet.us/fr/pages/default.aspx"
        }
        else { 
            HTTP::redirect "https://www.mylocalnet.us/en/pages/default.aspx" 
        }
    }

    switch -glob [string tolower [HTTP::path]] {
        "/en/sitemap.xml*" {
            HTTP::uri "/en-sitemap.xml"
        }
        "/fr/sitemap.xml*" {
            HTTP::uri "/fr-sitemap.xml"
        }  
    }
  }

when HTTP_RESPONSE {
     catch and replace redirect headers
    if { [HTTP::header exists Location] } {
        HTTP::header replace Location [string map {"http://" "https://"} [string tolower [HTTP::header Location]]]
    } 
      only look at text data
    if { [HTTP::header Content-Type] contains "text" } 
         create a STREAM expression to replace any http:// with https:// for CDN
        STREAM::expression {@http://bt.mylocal.ae@https://bt.mylocal.ae@ @www.mylocalnet.us@ 
@http://www.mylocalnet.us@https://www.mylocalnet.us@}
         enable STREAM
        STREAM::enable
    }
}

Matthieu,

You are simply a GENIUS guy :). Very Very Thanks for your extra ordinary and superb support. Very much impressed. Hats Off. I have tested it and it worked like a magic :) .Once again thanks.