# File lib/aws/core/signature/version_4.rb, line 23 def self.included base base.send(:include, Signer) end
# File lib/aws/core/signature/version_4.rb, line 105 def canonical_header_values values values = [values] unless values.is_a?(Array) values.map(&:to_s).map(&:strip).join(',') end
# File lib/aws/core/signature/version_4.rb, line 96 def canonical_headers headers = [] self.headers.each_pair do |k,v| headers << [k,v] unless k == 'authorization' end headers = headers.sort_by(&:first) headers.map{|k,v| "#{k}:#{canonical_header_values(v)}" }.join("\n") end
# File lib/aws/core/signature/version_4.rb, line 74 def canonical_request parts = [] parts << http_method parts << path parts << querystring parts << canonical_headers + "\n" parts << signed_headers parts << hex16(hash(body || '')) parts.join("\n") end
# File lib/aws/core/signature/version_4.rb, line 65 def credential_string datetime parts = [] parts << datetime[0,8] parts << region parts << service parts << 'aws4_request' parts.join("/") end
# File lib/aws/core/signature/version_4.rb, line 114 def hash string Digest::SHA256.digest(string) end
# File lib/aws/core/signature/version_4.rb, line 110 def hex16 string string.unpack('H*').first end
# File lib/aws/core/signature/version_4.rb, line 85 def service # this method is implemented in the request class for each service raise NotImplementedError end
# File lib/aws/core/signature/version_4.rb, line 47 def signature credentials, datetime k_secret = credentials.secret_access_key k_date = hmac("AWS4" + k_secret, datetime[0,8]) k_region = hmac(k_date, region) k_service = hmac(k_region, service) k_credentials = hmac(k_service, 'aws4_request') hmac(k_credentials, string_to_sign(datetime)) end
# File lib/aws/core/signature/version_4.rb, line 90 def signed_headers to_sign = headers.keys.map{|k| k.to_s.downcase } to_sign.delete('authorization') to_sign.sort.join(";") end
# File lib/aws/core/signature/version_4.rb, line 56 def string_to_sign datetime parts = [] parts << 'AWS4-HMAC-SHA256' parts << datetime parts << credential_string(datetime) parts << hex16(hash(canonical_request)) parts.join("\n") end