module HTTPX::Plugins::AWSSigV4::RequestMethods

    # File lib/httpx/plugins/aws_sigv4.rb
201 def canonical_path
202   path = uri.path.dup
203   path << "/" if path.empty?
204   path.gsub(%r{[^/]+}) { |part| CGI.escape(part.encode("UTF-8")).gsub("+", "%20").gsub("%7E", "~") }
205 end

    # File lib/httpx/plugins/aws_sigv4.rb
207 def canonical_query
208   params = query.split("&")
209   # params = params.map { |p| p.match(/=/) ? p : p + '=' }
210   # From: https://docs.aws.amazon.com/IAM/latest/UserGuide/create-signed-request.html#create-canonical-request
211   # Sort the parameter names by character code point in ascending order.
212   # Parameters with duplicate names should be sorted by value.
213   #
214   # Default sort <=> in JRuby will swap members
215   # occasionally when <=> is 0 (considered still sorted), but this
216   # causes our normalized query string to not match the sent querystring.
217   # When names match, we then sort by their values.  When values also
218   # match then we sort by their original order
219   params.each.with_index.sort do |a, b|
220     a, a_offset = a
221     b, b_offset = b
222     a_name, a_value = a.split("=", 2)
223     b_name, b_value = b.split("=", 2)
224     if a_name == b_name
225       if a_value == b_value
226         a_offset <=> b_offset
227       else
228         a_value <=> b_value
229       end
230     else
231       a_name <=> b_name
232     end
233   end.map(&:first).join("&")
234 end