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s3s1277_111291's avatar
s3s1277_111291
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Apr 02, 2012

question on iRule

I've created a simple iRule to match a string in URI, and redirect to different URL. But it is appending extra '/' after the hostname in the URL. Any idea why?

 

 

Here is the rule:

 

 

if { [HTTP::uri] contains "string1234" } {

 

log local0. "Matched and redirecting to http://xxxxxx[HTTP::uri]"

 

HTTP::redirect http://xxxxxx[http::uri]

 

}

 

 

And this is what I see in the ltm log file:

 

 

local/tmm info tmm[5076]: Rule testrule : Matched and redirecting to http://xxxxxx//BC/string1234?all

 

 

Note the two '//' after hostname xxxxxxx.

 

 

Thanks.
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  • Sashi_81625's avatar
    Sashi_81625
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    Apr 02, 2012
    [HTTP::uri] starts with "/" ... if you are adding "/" after host, remove it.

     

    ex: http://xyz.com[HTTP::uri]
  • s3s1277_111291's avatar
    s3s1277_111291
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    Apr 02, 2012
    But I dont have a / after the host. here is the redirect I'm using:

     

     

    HTTP::redirect ]

     

     

  • Michael_Yates's avatar
    Michael_Yates
    Icon for Nimbostratus rankNimbostratus
    Apr 02, 2012
    Hi s3s1277,

    If you want to see what Sashi is talking about add the following to your iRule. You are adding in the "/" in some part of the iRule that is deplayed. The [HTTP::uri] value starts with and includes the "/" (see the log example below).

    Apr 2 15:31:32 local/tmm1 info tmm1[4831]: Rule Z.iRule.Development : Matched and redireting to http://xxxxxx/string1234

    Apr 2 15:31:32 local/tmm1 info tmm1[4831]: Rule Z.iRule.Development : HTTP::host Value: website.com

    Apr 2 15:31:32 local/tmm1 info tmm1[4831]: Rule Z.iRule.Development : HTTP::uri Value: /string1234 

    
when HTTP_REQUEST {
if { [HTTP::uri] contains "/string1234" } {
log local0. "Matched and redireting to http://xxxxxx[HTTP::uri]"
log local0. "HTTP::host Value:  [HTTP::host]"
log local0. "HTTP::uri Value:  [HTTP::uri]"
HTTP::redirect "http://xxxxxx[HTTP::uri]"
}
}

    Hope this helps.
  • s3s1277_111291's avatar
    s3s1277_111291
    Icon for Nimbostratus rankNimbostratus
    Apr 02, 2012
    Thank you. I was declaring a variable at the top, for the host (without a /). It somehow appends extra /. Without declaring a variable, if I add the host explicitly in the redirect rule, it is not appending the extra /. Like this..

     

    when HTTP_REQUEST {

     

    set vip2 "hostname"

     

    if { [HTTP::uri] contains "string1234" } {

     

    HTTP::redirect http://$vip2[HTTP::uri]

     

    }

     

    }