require "time" require "base64" require "bigdecimal" require_relative "core_ext/module/delegation" require_relative "core_ext/string/inflections" require_relative "core_ext/date_time/calculations" module ActiveSupport # = XmlMini # # To use the much faster libxml parser: # gem 'libxml-ruby', '=0.9.7' # XmlMini.backend = 'LibXML' module XmlMini extend self # This module decorates files deserialized using Hash.from_xml with # the original_filename and content_type methods. module FileLike #:nodoc: attr_writer :original_filename, :content_type def original_filename @original_filename || "untitled" end def content_type @content_type || "application/octet-stream" end end DEFAULT_ENCODINGS = { "binary" => "base64" } unless defined?(DEFAULT_ENCODINGS) unless defined?(TYPE_NAMES) TYPE_NAMES = { "Symbol" => "symbol", "Integer" => "integer", "BigDecimal" => "decimal", "Float" => "float", "TrueClass" => "boolean", "FalseClass" => "boolean", "Date" => "date", "DateTime" => "dateTime", "Time" => "dateTime", "Array" => "array", "Hash" => "hash" } # No need to map these on Ruby 2.4+ TYPE_NAMES["Fixnum"] = "integer" unless 0.class == Integer TYPE_NAMES["Bignum"] = "integer" unless 0.class == Integer end FORMATTING = { "symbol" => Proc.new { |symbol| symbol.to_s }, "date" => Proc.new { |date| date.to_s(:db) }, "dateTime" => Proc.new { |time| time.xmlschema }, "binary" => Proc.new { |binary| ::Base64.encode64(binary) }, "yaml" => Proc.new { |yaml| yaml.to_yaml } } unless defined?(FORMATTING) # TODO use regexp instead of Date.parse unless defined?(PARSING) PARSING = { "symbol" => Proc.new { |symbol| symbol.to_s.to_sym }, "date" => Proc.new { |date| ::Date.parse(date) }, "datetime" => Proc.new { |time| Time.xmlschema(time).utc rescue ::DateTime.parse(time).utc }, "integer" => Proc.new { |integer| integer.to_i }, "float" => Proc.new { |float| float.to_f }, "decimal" => Proc.new do |number| if String === number begin BigDecimal(number) rescue ArgumentError BigDecimal("0") end else BigDecimal(number) end end, "boolean" => Proc.new { |boolean| %w(1 true).include?(boolean.to_s.strip) }, "string" => Proc.new { |string| string.to_s }, "yaml" => Proc.new { |yaml| YAML::load(yaml) rescue yaml }, "base64Binary" => Proc.new { |bin| ::Base64.decode64(bin) }, "binary" => Proc.new { |bin, entity| _parse_binary(bin, entity) }, "file" => Proc.new { |file, entity| _parse_file(file, entity) } } PARSING.update( "double" => PARSING["float"], "dateTime" => PARSING["datetime"] ) end attr_accessor :depth self.depth = 100 delegate :parse, to: :backend def backend current_thread_backend || @backend end def backend=(name) backend = name && cast_backend_name_to_module(name) self.current_thread_backend = backend if current_thread_backend @backend = backend end def with_backend(name) old_backend = current_thread_backend self.current_thread_backend = name && cast_backend_name_to_module(name) yield ensure self.current_thread_backend = old_backend end def to_tag(key, value, options) type_name = options.delete(:type) merged_options = options.merge(root: key, skip_instruct: true) if value.is_a?(::Method) || value.is_a?(::Proc) if value.arity == 1 value.call(merged_options) else value.call(merged_options, key.to_s.singularize) end elsif value.respond_to?(:to_xml) value.to_xml(merged_options) else type_name ||= TYPE_NAMES[value.class.name] type_name ||= value.class.name if value && !value.respond_to?(:to_str) type_name = type_name.to_s if type_name type_name = "dateTime" if type_name == "datetime" key = rename_key(key.to_s, options) attributes = options[:skip_types] || type_name.nil? ? {} : { type: type_name } attributes[:nil] = true if value.nil? encoding = options[:encoding] || DEFAULT_ENCODINGS[type_name] attributes[:encoding] = encoding if encoding formatted_value = FORMATTING[type_name] && !value.nil? ? FORMATTING[type_name].call(value) : value options[:builder].tag!(key, formatted_value, attributes) end end def rename_key(key, options = {}) camelize = options[:camelize] dasherize = !options.has_key?(:dasherize) || options[:dasherize] if camelize key = true == camelize ? key.camelize : key.camelize(camelize) end key = _dasherize(key) if dasherize key end private def _dasherize(key) # $2 must be a non-greedy regex for this to work left, middle, right = /\A(_*)(.*?)(_*)\Z/.match(key.strip)[1, 3] "#{left}#{middle.tr('_ ', '--')}#{right}" end # TODO: Add support for other encodings def _parse_binary(bin, entity) case entity["encoding"] when "base64" ::Base64.decode64(bin) else bin end end def _parse_file(file, entity) f = StringIO.new(::Base64.decode64(file)) f.extend(FileLike) f.original_filename = entity["name"] f.content_type = entity["content_type"] f end def current_thread_backend Thread.current[:xml_mini_backend] end def current_thread_backend=(name) Thread.current[:xml_mini_backend] = name && cast_backend_name_to_module(name) end def cast_backend_name_to_module(name) if name.is_a?(Module) name else require_relative "xml_mini/#{name.downcase}" ActiveSupport.const_get("XmlMini_#{name}") end end end XmlMini.backend = "REXML" end