iRule redirect - change domain, path but keep unique ID

Here's my shot at it so far. It's just not working the way I would hope. Seems to ignore the host redirect and the uri string map as well.

 

 

when HTTP_REQUEST {

 

if {[HTTP::host] equals "documents.test.com"} {

 

HTTP::redirect http://platform.test.com"}

 

if { [HTTP::uri] starts_with "/retrieve.asp?guid"}{

 

HTTP::uri [string map {/retrieve.asp?guid /Servicepages/RetrieveDocument.aspx?did} [HTTP::uri]]

 

}

 

}

 

Ok, got it figured out, in case this helps anyone and so nobody wastes any time with it...

 

 

when HTTP_REQUEST {

 

if { [HTTP::uri] starts_with "/retrieve.asp"}{

 

HTTP::redirect "http://[string map {documents.test.com/retrieve.asp?guid= platform.test.com/Servicepages/RetrieveDocument.aspx?did=} [string tolower [HTTP::host]][HTTP::uri]]"

 

}

 

}

Ive been directed to take over this project for Capps since he has left the business. This is still an open question and his solution does not work.

 

 

To recap.

 

 

2 Domains (Hosts) with there own Paths and only a portion of the query will be the same. Both services have access to the same documents via the ID, hince why we only need to maintain the ID, this ID is random based on the associated document, so the number can change at any time.

 

 

 

http://doc.qa.domain.com/retrieve.a...4

 

http://doc.qa.domain.com/Servicepag...4

Well it looks like he was pretty close to a solution as the following works but with some minor issues:

 

 

when HTTP_REQUEST {

 

if { [HTTP::uri] starts_with "/retrieve.asp"}{

 

HTTP::redirect "http://[string map {".../retrieve.asp?guid=" ".../Servicepages/RetrieveDocument.aspx?did="} [string tolower [HTTP::host]][HTTP::uri]]"

 

}

 

}

 

 

What I am unable to account for is that R in retrieve.asp could either be upper or lower. Currently in QA I am using two Irules on the VIP due to this issue so that it will catch both upper and lower. I would like to consolidate this into a single Irule.

 

 

It sounds like you need the string tolower command. For a case insensitive comparison try:

when HTTP_REQUEST {
  if { [string tolower [HTTP::uri]] starts_with "/retrieve.asp"}{
    HTTP::redirect "http://[string map {".../retrieve.asp?guid=" ".../Servicepages/RetrieveDocument.aspx?did="} [string tolower [HTTP::host]][HTTP::uri]]"
  }
}

Colin

Thanks, I tried your sugestion but this seems to throw this into an infinate loop when accessing links that have a upper R in the asp page.

Can you try this instead?

when HTTP_REQUEST {

    Check for requests to /retrieve.asp
   if { [string tolower [HTTP::path]] eq "/retrieve.asp"}{

       Redirect the request to /Servicepages/RetrieveDocument.aspx 
       with the guid parameter value set as did
      HTTP::redirect "/Servicepages/RetrieveDocument.aspx?did=[URI::query "?&[HTTP::query] &guid]"
   }
}

Aaron

line 8: [parse error: missing close-bracket] [[URI::query "?&[HTTP::query] &guid]"

 

]

 

 

Can you try this:

when HTTP_REQUEST {
 Check for requests to /retrieve.asp
if { [string tolower [HTTP::path]] eq "/retrieve.asp"}{
 Redirect the request to /Servicepages/RetrieveDocument.aspx 
 with the guid parameter value set as did
HTTP::redirect "/Servicepages/RetrieveDocument.aspx?did=[URI::query [HTTP::query] "guid" ]"
}
}

Sorry, there was a missing double quote:

when HTTP_REQUEST {

    Check for requests to /retrieve.asp
   if { [string tolower [HTTP::path]] eq "/retrieve.asp"}{

       Redirect the request to /Servicepages/RetrieveDocument.aspx 
       with the guid parameter value set as did
      HTTP::redirect "/Servicepages/RetrieveDocument.aspx?did=[URI::query "?&[HTTP::query]" &guid]"
   }
}

Michael, the ?&[HTTP::query] and &guid parts are necessary to work around a bug in the URI::query command. See the bottom of the URI::query wiki page for details:

http://devcentral.f5.com/wiki/default.aspx/iRules/uri__query.html

Aaron