Forum Discussion

JoeK_10405's avatar
JoeK_10405
Icon for Nimbostratus rankNimbostratus
Jan 16, 2009

Intercept client request to fix broken app

Breakfix Needed. Client requests causes app to loop and eat all resources, and fix will take some weeks to migrate through to production. So in the meantime, I need to leverage/show off iRules in our ...
application delivery
dev
devops
iRules
JoeK_10405's avatar
JoeK_10405
Icon for Nimbostratus rankNimbostratus
Jan 16, 2009
Updated iRule per CharlesCS suggestion:
   when HTTP_REQUEST {            
        if {[HTTP::method] equals "OPTIONS" } {     
          log local0. "OPTIONS method detected"     
          if  {[HTTP::uri] equals "/xxx/authentication/AuthenticationServlet"} {     
              log local0. "uri equals /xxx/authentication/AuthenticationServlet!"     
              if {[HTTP::version] eq "1.1" } {            
                log local0. "intercept response !"     
               HTTP::respond 200 "Allow" "GET, HEAD, POST, TRACE, OPTIONS"             
              }            
            }       
        }     
     }

And following CURL output:
 curl -v -X OPTIONS http://xxx/xxx/authentication/AuthenticationServlet  
  * About to connect() to xxx port 80  
  *   Trying 10.0.0.26... connected  
  * Connected to xxx (10.0.0.26) port 80  
  > OPTIONS /xxx/authentication/AuthenticationServlet HTTP/1.1  
  > User-Agent: curl/7.15.3 (i686-redhat-linux-gnu) libcurl/7.15.3 OpenSSL/0.9.7l zlib/1.1.4  
  > Host: xxx  
  > Accept: */*  
  >   
  < HTTP/1.0 200 OK  
  < Allow: GET, HEAD, POST, TRACE, OPTIONS 
  < Server: BigIP  
  * HTTP/1.0 connection set to keep alive!  
  < Connection: Keep-Alive  
  < Content-Length: 0  
  * Connection 0 to host xxx left intact  
  * Closing connection 0