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idealo_security's avatar
idealo_security
Icon for Altostratus rankAltostratus
Mar 15, 2017

iRule to block paths is not working properly after decoding HTTP::uri

Hi folks, I was trying to generate an iRule which should take the URL, decode it, normalize the path portion and save it for later use in the following iRules. But unfortunately, I wasn't able to pro...
iRules
LTM
security
  • idealo_security's avatar
    idealo_security
    Mar 17, 2017

    Solution is found: The error was in not writing the basename back to the 

    HTTP:path
    variable:

    when HTTP_REQUEST priority 400 {
 this part is taken from F5s DevCentral
   set tmpUri [HTTP::uri]
   set uri [URI::decode $tmpUri]

   while { $uri ne $tmpUri } {
     set tmpUri $uri
     set uri [URI::decode $tmpUri]
   }
    set tmpPath "[URI::path $uri][URI::basename $uri]"
    HTTP::path $tmpPath 
}
idealo_security's avatar
idealo_security
Icon for Altostratus rankAltostratus
Mar 17, 2017

Solution is found: The error was in not writing the basename back to the 

HTTP:path
variable:

when HTTP_REQUEST priority 400 {
 this part is taken from F5s DevCentral
   set tmpUri [HTTP::uri]
   set uri [URI::decode $tmpUri]

   while { $uri ne $tmpUri } {
     set tmpUri $uri
     set uri [URI::decode $tmpUri]
   }
    set tmpPath "[URI::path $uri][URI::basename $uri]"
    HTTP::path $tmpPath 
}