google-safe-search-example

[henri]

Example added for forced Google safe search using DNS.

[henri]

Sorted those soft-tabs :)

[ioquatix]

This can be improved.

require 'async'
require 'async/http/internet'

google_domains = Sync do
	internet = Async::HTTP::Internet.new
	response = internet.get("https://www.google.com/supported_domains")
	
	response.read.split(/\n/)
ensure
	response&.close
end

[ioquatix]

domains = Regexp.union(google_domains)

# Start the RubyDNS server
RubyDNS::run_server(INTERFACES) do
	@logger.debug!
	
	match(domains, IN::A) do |transaction|
		transaction.respond!(Name.create('forcesafesearch.google.com'), resource_class: IN::CNAME)
	end
	
	otherwise do |transaction|
		transaction.passthrough!(UPSTREAM)
	end
end

[ioquatix]

Might need to tweak domains but this should avoid having to generate a script/server.

[ioquatix]

domains = /#{Regexp.union(google_domains)}\z/

maybe sufficient.

[henri]

In order to preserve sub-domains such as admin.google.com, docs.google.com etc.

It may be necessary to do an exact match. Maybe Google handles this? Probably better to only override the specific top level domains for the force safe search?

[henri]

I do like the idea you suggested if that can work. Even if it is just matching the exact domains within an array.