Vanity Url - Re-write URL

It should be fairly straightforward to implement that logic in an iRule. You can use the 'HTTP::uri' command in the HTTP_REQUEST event to get/set the URI. You can use string functions to parse/modify the URI.

Here's a quick draft:

when HTTP_REQUEST {
    if the web app is case-insensitive, save the URI in lowercase
   set uri [string tolower [HTTP::uri]]
    log the lowercase version of the URI before modifying it
   log local0. "lowercase uri: $uri"
    check for the three logical cases
   if { $uri=="/" }{
      log local0. "URI was /: \$uri: $uri"
       do nothing
   }
   elseif { $uri ends_with "/" }{
      log local0. "URI ended with /: \$uri: $uri"
       replace the trailing / with .html
      set $uri [concat [string trimright $uri "/"].html]
   }
   elseif { not ($uri ends_with ".html" }{
      log local0. "URI didn't end with .html: \$uri: $uri"
       append .html
      set $uri [concat $uri.html]
   }
   else {
       did we miss a case?
      log local0. "default: \$uri: $uri"
   }
   log local0. "updated \$uri: $uri"
    update the URI before sending the request to the pool
   HTTP::uri $uri
}

Note that I didn't test all cases/exact syntax, but hopefully this gets you started.

The log statements are written to /var/log/ltm. They should help you trace what the rule is doing. You should comment them out or remove them before using the rule in production.

Aaron