Forum Discussion
craig_lee10_177
Nimbostratus
NimbostratusNeed a pointer
Hi I need some help with an irule that I am banging my head with. Basically I need to keep the uri intact from a client point of view and strip out the /development before it gets sent to the backend web server. Please see below which we have working
when HTTP_REQUEST {
switch -glob [HTTP::uri] {
/development/ibi* {
Remove the /development prefix from the uri
HTTP::uri [string map {/development ""} [HTTP::uri]]
use node 1.1.1.1 80
log local0. "Host = [HTTP::host] URI = [HTTP::uri] "
}
/development/app* {
Remove the /development prefix from the uri
HTTP::uri [string map {/development ""} [HTTP::uri]]
use node 2.2.2.2 80
log local0. "Host = [HTTP::host] URI = [HTTP::uri])"
}
/development/* {
Remove the /development prefix from the uri
HTTP::uri [string map {/development ""} [HTTP::uri]]
use node 3.3.3.3 80
log local0. "Host = [HTTP::host] URI = [HTTP::uri])"
}
default {
Take some default action?
node 172.16.204.63 80
}
}
}
The problem I have is that one of the nodes sends a 302 back in the response and the URI contains something like /online/TestLogin.aspx. How do I get it to insert the /development before it goes back to the client i.e. /development/online/TestLogin.aspx so it remains totally transparent to the user?
Many Thank Craig
- nitass
Employee
e.g.[root@ve10: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 {} tcp {} } } [root@ve10:Active] config b pool foo list pool foo { members 200.200.200.101:80 {} } [root@ve10:Active] config b rule myrule list rule myrule { when HTTP_REQUEST { set host [HTTP::host] HTTP::uri [string map {/development ""} [HTTP::uri]] } when HTTP_RESPONSE { if {[HTTP::is_redirect]} { HTTP::header replace Location [string map "http://${host}/ http://${host}/development/" [HTTP::header Location]] } } } [root@ve10:Active] config ssldump -Aed -nni 0.0 port 80 New TCP connection 1: 172.28.19.251(49146) <-> 172.28.19.79(80) 1349186691.3431 (0.0009) C>S --------------------------------------------------------------- HEAD /development/something HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: www.abc.com --------------------------------------------------------------- New TCP connection 2: 200.200.200.10(49146) <-> 200.200.200.101(80) 1349186691.3441 (0.0009) C>S --------------------------------------------------------------- HEAD /something HTTP/1.1 User-Agent: curl/7.15.5 (i686-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 Accept: */* Host: www.abc.com --------------------------------------------------------------- 1349186691.3451 (0.0009) S>C --------------------------------------------------------------- HTTP/1.1 302 Found Date: Tue, 02 Oct 2012 14:21:04 GMT Server: Apache/2.2.3 (CentOS) Location: http://www.abc.com/online/TestLogin.aspx Connection: close Content-Type: text/html; charset=iso-8859-1 --------------------------------------------------------------- 1349186691.3451 (0.0020) S>C --------------------------------------------------------------- HTTP/1.1 302 Found Date: Tue, 02 Oct 2012 14:21:04 GMT Server: Apache/2.2.3 (CentOS) Location: http://www.abc.com/development/online/TestLogin.aspx Connection: close Content-Type: text/html; charset=iso-8859-1 --------------------------------------------------------------- 
What_Lies_Bene1Cirrostratus
This should do it but nitass's code is way better;
when HTTP_RESPONSE { if { [string tolower [HTTP::header]] values "Location" equals "/online/TestLogin.aspx" } { HTTP::header replace "Location" "/development/online/TestLogin.aspx" } }
craig_lee10_177Thanks guys just had to do a few alterations in your suggestions and got it working, thanks for pointing me in the right direction
Craig
