safesearch - google et al

If you know what part in the URI you want to modify, and what you want to modify it to, this could very easily be done via the stream profile.

 

 

I.E. if you know you want to change search-x to search=x&safe=active, this would be simple.

 

 

Colin

there is a "standard" part of the search string to which we can insert some text, but I am not 100% sure that this is x characters from the start each time a search is run.

 

 

is it possible to find the string i.e. "en" and replace with "en&safe=active" without destroying the remainder of the URI?

 

 

example with no safe search

 

http://www.google.co.uk/search?hl=en&rlz=1G1GGLQ_ENGB268&q=halibut&meta=

 

 

example with safe search

 

http://www.google.co.uk/search?hl=en&safe=active&rlz=1G1GGLQ_ENGB268&q=halibut&meta=

 

 

thestring "&safe=active" always comes after hl=en (in this case)

 

 

any help?

You can use the "string map" command to do a search and replace quite easily. The following iRule will check to make sure the URI doesn't have the "safe=active" parameter. If it is not present in the URI, then it will replace all occurances of "hl=en" with "hl=en&safe=active". So, if you have more than one "hl=en" in the URI, it will replace both of them. If that's the case, you might want to look for a more unique term.

when HTTP_REQUEST { 
   if { ! [HTTP::uri] contains "safe=active" } { 
     HTTP::uri [string map {"hl=en" "hl=en&safe=active"} [HTTP::uri]] 
   } 
 }

If you just want to append it to the URI, then you can do so like this:

when HTTP_REQUEST { 
   if { ! [HTTP::uri] contains "safe=active" } { 
     HTTP::uri "[HTTP::uri]&safe=active" 
   } 
 }

Keep in mind that this may not work if you don't have any querystring arguments in the URI to begin with. The first querystring argument needs to start with a question mark and if you don't have any, this iRule will prefix the only querystring argument with a ampersand.

Hope this is enough to get you started.

-Joe