convert irule from 9.x to 4.x

  
 when HTTP_REQUEST {   
 if { ([HTTP::uri] eq "/") and ([HTTP::host] eq "www.abc.abc.com") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }   
 

  
 when HTTP_REQUEST {   
 if { ([HTTP::uri] eq "/") and ([string tolower [HTTP::host]] eq "www.abc.abc.com") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }   
 

  
 when HTTP_REQUEST {   
 if { ([HTTP::host] eq "www.abc.abc.com") and ([HTTP::uri] eq "/") } {   
 HTTP::redirect "http://www.abc.abc.com:8000/bla/bla"   
 } else {   
 HTTP::redirect "https://[HTTP::host][HTTP::uri]"   
 pool abc-pool  
 }   
 }