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David_Landry's avatar
David_Landry
Icon for Nimbostratus rankNimbostratus
Jan 24, 2012

Need help with writing an iRule to remove jsession URI content

I've got a lovely challenge where I need to remove the jsessionid content from an URI.     https://test.com/web/tabs;jsessionid=07E052F5D     This would be on the server back to the cl...
application delivery
dev
devops
iRules
nitass's avatar
nitass
Icon for Employee rankEmployee
Jan 24, 2012
not sure if i understand correctly. anyway, i assume uri is response contact and jsessionid length is fixed. please feel free to revise. 

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.19.79:80
   ip protocol 6
   rules myrule
   profiles {
      http {}
      stream {}
      tcp {}
   }
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members 200.200.200.101:80 {}
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when HTTP_REQUEST {
   STREAM::disable
   HTTP::header remove "Accept-Encoding"
}

when HTTP_RESPONSE {
   if {[HTTP::header value Content-Type] contains "text"}{
      STREAM::expression {@;jsessionid=\w{9}@@}
      STREAM::enable
   }
}
}

[root@ve1023:Active] config  curl -i http://200.200.200.101/test.html
HTTP/1.1 200 OK
Date: Tue, 24 Jan 2012 16:02:43 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Tue, 24 Jan 2012 15:58:04 GMT
ETag: "4183f2-a5-36565b00"
Accept-Ranges: bytes
Content-Length: 165
Set-Cookie: BROWSER=MOZILLA%20INTERNET_EXPLORER%20CHROME; path=/
Content-Type: text/html; charset=UTF-8

...
https://www.google.com/
https://test.com/web/tabs;jsessionid=07E052F5D
https://www.yahoo.com/
...

[root@ve1023:Active] config  curl -i http://172.28.19.79/test.html
HTTP/1.1 200 OK
Date: Tue, 24 Jan 2012 16:02:46 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Tue, 24 Jan 2012 15:58:04 GMT
ETag: "4183f2-a5-36565b00"
Accept-Ranges: bytes
Set-Cookie: BROWSER=MOZILLA%20INTERNET_EXPLORER%20CHROME; path=/
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked

...
https://www.google.com/
https://test.com/web/tabs
https://www.yahoo.com/
...