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lbong_53781's avatar
lbong_53781
Icon for Nimbostratus rankNimbostratus
Oct 02, 2009

HTTP::COOKIE not working as expected

 

I am running LTM 10.0.1

 

 

I have the following iRule and run into some issues when there are multiple cookie variable in the header. The Rule seems to only look at the last "Cookie:" variable in the header. If "My_Cookie" is the last cookie statement in the header, it will work. But if its not, it will not see "My_Cookie".

 

 

when HTTP_REQUEST {

 

if {[HTTP::cookie exists "My_Cookie"]} {

 

if {[HTTP::cookie "My_Cookie"] equals "1"} {

 

use pool My_Pool

 

} else {

 

use pool My_Pool_2

 

}

 

} else {

 

use pool Other_Pool

 

}

 

}

 

 

I tried to send the following to the F5 to test the rule.

 

 

do echo && echo -n "$number ";GET -Ssed -H 'User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)' -H 'Cookie: TID=5555%2D51020900262051001033859%2D0' -H 'Cookie: My_Cookie=1' -H 'Cookie: CHOSEN_BANNER=1' -H 'Host: mysite.com' http://mysite.com/?test=$number
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  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Oct 02, 2009
    Can you add logging to the test rule and post the results when it fails? In a quick test, this functionality seemed to work okay: 

     
 when HTTP_REQUEST { 
  
     Insert some test headers 
    HTTP::header insert header1 value1 
    HTTP::header insert header2 value2 
  
     Test the header exists command for both headers 
    if {[HTTP::header exists header1]}{ 
       log local0. "header1 exists" 
    } else { 
       log local0. "header1 does not exist" 
    } 
    if {[HTTP::header exists header2]}{ 
       log local0. "header2 exists" 
    } else { 
       log local0. "header2 does not exist" 
    } 
  
     Loop through each header by name and log the name and value 
    foreach header [HTTP::header names] { 
       log local0. "$header: [HTTP::header values $header]" 
    } 
 }

    : header1 exists

    : header2 exists

    : User-Agent: {curl/7.16.3 (i686-pc-cygwin) libcurl/7.16.3 OpenSSL/0.9.8k zlib/1.2.3 libssh2/0.15-CVS}

    : Host: piggybank

    : Accept: */*

    : header1: value1

    : header2: value2

    Aaron
  • lbong_53781's avatar
    lbong_53781
    Icon for Nimbostratus rankNimbostratus
    Oct 02, 2009
    Thanks for looking into this.

     

    The issue is not with the header. Its with the evaluation of [HTTP::COOKIE].

     

    When the last Cookie in the header is "My_Cookie" it works fine. When the last Cookie is not, the [HTTP::COOKIE] functions seem to not able to find "My_Cooke".

     

    Below is my test script.

     

    This will fail,

     

    do echo && echo -n "$number ";GET -Ssed -H 'User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)' -H 'Cookie: TID=5555%2D51020900262051001033859%2D0' -H 'Cookie: My_Cookie=1' -H 'Cookie: CHOSEN_BANNER=1' -H 'Host: mysite.com' http://mysite.com/?test=$number

     

    This will work correctly,

     

    do echo && echo -n "$number ";GET -Ssed -H 'User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)' -H 'Cookie: TID=5555%2D51020900262051001033859%2D0' -H 'Cookie: CHOSEN_BANNER=1' -H 'Cookie: My_Cookie=1' -H 'Host: mysite.com' http://mysite.com/?test=$number

     

     

    Thanks
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Oct 05, 2009
    Sorry... I misread your post. On 10.0.1, the cookie value seems to work: 

     
 when HTTP_REQUEST { 
  
 HTTP::cookie insert name cookie1 value value1 
 HTTP::cookie insert name cookie2 value value2 
  
 if {[HTTP::cookie exists cookie1]}{ 
 log local0. "cookie1 exists" 
 } else { 
 log local0. "cookie1 does not exist" 
 } 
 if {[HTTP::cookie exists cookie2]}{ 
 log local0. "cookie2 exists" 
 } else { 
 log local0. "cookie2 does not exist" 
 } 
 log local0. "Cookie names ([HTTP::cookie names])" 
 foreach cookie [HTTP::cookie names] { 
 log local0. "\[HTTP::cookie value $cookie\]: [HTTP::cookie value $cookie]" 
 } 
 }

    : cookie1 exists

    : cookie2 exists

    : Cookie names (cookie1 cookie2)

    : [HTTP::cookie value cookie1]: value1

    : [HTTP::cookie value cookie2]: value2

    Can you add logging to your iRule and post the results from HTTP::cookie exists "cookie_name" and HTTP::cookie value "cookie_name"?

    Aaron