diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/routing/route_set.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/routing/route_set.rb | 369 |
1 files changed, 233 insertions, 136 deletions
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb index 15a6415342..7872f4007e 100644 --- a/actionpack/lib/action_dispatch/routing/route_set.rb +++ b/actionpack/lib/action_dispatch/routing/route_set.rb @@ -1,4 +1,4 @@ -require 'rack/mount' +require 'journey' require 'forwardable' require 'active_support/core_ext/object/blank' require 'active_support/core_ext/object/to_query' @@ -9,6 +9,12 @@ require 'action_controller/metal/exceptions' module ActionDispatch module Routing class RouteSet #:nodoc: + # Since the router holds references to many parts of the system + # like engines, controllers and the application itself, inspecting + # the route set can actually be really slow, therefore we default + # alias inspect to to_s. + alias inspect to_s + PARAMETERS_KEY = 'action_dispatch.request.path_parameters' class Dispatcher #:nodoc: @@ -20,6 +26,15 @@ module ActionDispatch def call(env) params = env[PARAMETERS_KEY] + + # If any of the path parameters has a invalid encoding then + # raise since it's likely to trigger errors further on. + params.each do |key, value| + unless value.valid_encoding? + raise ActionController::BadRequest, "Invalid parameter: #{key} => #{value}" + end + end + prepare_params!(params) # Just raise undefined constant errors if a controller was specified as default. @@ -31,13 +46,14 @@ module ActionDispatch end def prepare_params!(params) + normalize_controller!(params) merge_default_action!(params) split_glob_param!(params) if @glob_param end # If this is a default_controller (i.e. a controller specified by the user) # we should raise an error in case it's not found, because it usually means - # an user error. However, if the controller was retrieved through a dynamic + # a user error. However, if the controller was retrieved through a dynamic # segment, as in :controller(/:action), we should simply return nil and # delegate the control back to Rack cascade. Besides, if this is not a default # controller, it means we should respect the @scope[:module] parameter. @@ -66,6 +82,10 @@ module ActionDispatch controller.action(action).call(env) end + def normalize_controller!(params) + params[:controller] = params[:controller].underscore if params.key?(:controller) + end + def merge_default_action!(params) params[:action] ||= 'index' end @@ -83,7 +103,27 @@ module ActionDispatch attr_reader :routes, :helpers, :module def initialize - clear! + @routes = {} + @helpers = [] + @module = Module.new do + protected + + def handle_positional_args(args, options, segment_keys) + inner_options = args.extract_options! + result = options.dup + + if args.size > 0 + keys = segment_keys + if args.size < keys.size - 1 # take format into account + keys -= self.url_options.keys if self.respond_to?(:url_options) + keys -= options.keys + end + result.merge!(Hash[keys.zip(args)]) + end + + result.merge!(inner_options) + end + end end def helper_names @@ -91,12 +131,8 @@ module ActionDispatch end def clear! - @routes = {} - @helpers = [] - - @module ||= Module.new do - instance_methods.each { |selector| remove_method(selector) } - end + @routes.clear + @helpers.clear end def add(name, route) @@ -125,59 +161,22 @@ module ActionDispatch routes.length end - def reset! - old_routes = routes.dup - clear! - old_routes.each do |name, route| - add(name, route) - end - end - - def install(destinations = [ActionController::Base, ActionView::Base], regenerate = false) - reset! if regenerate - Array(destinations).each do |dest| - dest.__send__(:include, @module) - end - end - private - def url_helper_name(name, kind = :url) - :"#{name}_#{kind}" - end - - def hash_access_name(name, kind = :url) - :"hash_for_#{name}_#{kind}" + def url_helper_name(name, only_path) + if only_path + :"#{name}_path" + else + :"#{name}_url" + end end def define_named_route_methods(name, route) - {:url => {:only_path => false}, :path => {:only_path => true}}.each do |kind, opts| - hash = route.defaults.merge(:use_route => name).merge(opts) - define_hash_access route, name, kind, hash - define_url_helper route, name, kind, hash + [true, false].each do |only_path| + hash = route.defaults.merge(:use_route => name, :only_path => only_path) + define_url_helper route, name, hash end end - def define_hash_access(route, name, kind, options) - selector = hash_access_name(name, kind) - - # We use module_eval to avoid leaks - @module.module_eval <<-END_EVAL, __FILE__, __LINE__ + 1 - remove_possible_method :#{selector} - def #{selector}(*args) - options = args.extract_options! - - if args.any? - options[:_positional_args] = args - options[:_positional_keys] = #{route.segment_keys.inspect} - end - - options ? #{options.inspect}.merge(options) : #{options.inspect} - end - protected :#{selector} - END_EVAL - helpers << selector - end - # Create a url helper allowing ordered parameters to be associated # with corresponding dynamic segments, so you can do: # @@ -191,43 +190,88 @@ module ActionDispatch # # foo_url(bar, baz, bang, :sort_by => 'baz') # - def define_url_helper(route, name, kind, options) - selector = url_helper_name(name, kind) - hash_access_method = hash_access_name(name, kind) + def define_url_helper(route, name, options) + selector = url_helper_name(name, options[:only_path]) @module.module_eval <<-END_EVAL, __FILE__, __LINE__ + 1 remove_possible_method :#{selector} def #{selector}(*args) - url_for(#{hash_access_method}(*args)) + if #{optimize_helper?(route)} && args.size == #{route.required_parts.size} && !args.last.is_a?(Hash) && optimize_routes_generation? + options = #{options.inspect} + options.merge!(url_options) if respond_to?(:url_options) + options[:path] = "#{optimized_helper(route)}" + ActionDispatch::Http::URL.url_for(options) + else + url_for(handle_positional_args(args, #{options.inspect}, #{route.segment_keys.inspect})) + end end END_EVAL + helpers << selector end + + # Clause check about when we need to generate an optimized helper. + def optimize_helper?(route) #:nodoc: + route.requirements.except(:controller, :action).empty? + end + + # Generates the interpolation to be used in the optimized helper. + def optimized_helper(route) + string_route = route.ast.to_s + + while string_route.gsub!(/\([^\)]*\)/, "") + true + end + + route.required_parts.each_with_index do |part, i| + # Replace each route parameter + # e.g. :id for regular parameter or *path for globbing + # with ruby string interpolation code + string_route.gsub!(/(\*|:)#{part}/, "\#{Journey::Router::Utils.escape_fragment(args[#{i}].to_param)}") + end + + string_route + end end - attr_accessor :set, :routes, :named_routes, :default_scope + attr_accessor :formatter, :set, :named_routes, :default_scope, :router attr_accessor :disable_clear_and_finalize, :resources_path_names attr_accessor :default_url_options, :request_class, :valid_conditions + attr_accessor :draw_paths + + alias :routes :set def self.default_resources_path_names { :new => 'new', :edit => 'edit' } end def initialize(request_class = ActionDispatch::Request) - self.routes = [] self.named_routes = NamedRouteCollection.new self.resources_path_names = self.class.default_resources_path_names.dup self.default_url_options = {} + self.draw_paths = [] self.request_class = request_class - self.valid_conditions = request_class.public_instance_methods.map { |m| m.to_sym } + @valid_conditions = {} + + request_class.public_instance_methods.each { |m| + @valid_conditions[m.to_sym] = true + } + @valid_conditions[:controller] = true + @valid_conditions[:action] = true + self.valid_conditions.delete(:id) - self.valid_conditions.push(:controller, :action) - @append = [] - @prepend = [] + @append = [] + @prepend = [] @disable_clear_and_finalize = false - clear! + @finalized = false + + @set = Journey::Routes.new + @router = Journey::Router.new(@set, { + :parameters_key => PARAMETERS_KEY, + :request_class => request_class}) + @formatter = Journey::Formatter.new @set end def draw(&block) @@ -248,8 +292,7 @@ module ActionDispatch def eval_block(block) if block.arity == 1 raise "You are using the old router DSL which has been removed in Rails 3.1. " << - "Please check how to update your routes file at: http://www.engineyard.com/blog/2010/the-lowdown-on-routes-in-rails-3/ " << - "or add the rails_legacy_mapper gem to your Gemfile" + "Please check how to update your routes file at: http://www.engineyard.com/blog/2010/the-lowdown-on-routes-in-rails-3/" end mapper = Mapper.new(self) if default_scope @@ -263,28 +306,25 @@ module ActionDispatch return if @finalized @append.each { |blk| eval_block(blk) } @finalized = true - @set.freeze end def clear! @finalized = false - routes.clear named_routes.clear - @set = ::Rack::Mount::RouteSet.new( - :parameters_key => PARAMETERS_KEY, - :request_class => request_class - ) + set.clear + formatter.clear @prepend.each { |blk| eval_block(blk) } end - def install_helpers(destinations = [ActionController::Base, ActionView::Base], regenerate_code = false) - Array(destinations).each { |d| d.module_eval { include Helpers } } - named_routes.install(destinations, regenerate_code) - end - - module MountedHelpers + module MountedHelpers #:nodoc: + extend ActiveSupport::Concern + include UrlFor end + # Contains all the mounted helpers accross different + # engines and the `main_app` helper for the application. + # You can include this in your classes if you want to + # access routes for other engines. def mounted_helpers MountedHelpers end @@ -295,7 +335,7 @@ module ActionDispatch routes = self MountedHelpers.class_eval do define_method "_#{name}" do - RoutesProxy.new(routes, self._routes_context) + RoutesProxy.new(routes, _routes_context) end end @@ -310,28 +350,36 @@ module ActionDispatch @url_helpers ||= begin routes = self - helpers = Module.new do + Module.new do extend ActiveSupport::Concern include UrlFor + # Define url_for in the singleton level so one can do: + # Rails.application.routes.url_helpers.url_for(args) @_routes = routes class << self - delegate :url_for, :to => '@_routes' + delegate :url_for, :optimize_routes_generation?, :to => '@_routes' end + + # Make named_routes available in the module singleton + # as well, so one can do: + # Rails.application.routes.url_helpers.posts_path extend routes.named_routes.module - # ROUTES TODO: install_helpers isn't great... can we make a module with the stuff that - # we can include? - # Yes plz - JP + # Any class that includes this module will get all + # named routes... + include routes.named_routes.module + + # plus a singleton class method called _routes ... included do - routes.install_helpers(self) singleton_class.send(:redefine_method, :_routes) { routes } end + # And an instance method _routes. Note that + # UrlFor (included in this module) add extra + # conveniences for working with @_routes. define_method(:_routes) { @_routes || routes } end - - helpers end end @@ -341,26 +389,73 @@ module ActionDispatch def add_route(app, conditions = {}, requirements = {}, defaults = {}, name = nil, anchor = true) raise ArgumentError, "Invalid route name: '#{name}'" unless name.blank? || name.to_s.match(/^[_a-z]\w*$/i) - route = Route.new(self, app, conditions, requirements, defaults, name, anchor) - @set.add_route(route.app, route.conditions, route.defaults, route.name) - named_routes[name] = route if name - routes << route + + path = build_path(conditions.delete(:path_info), requirements, SEPARATORS, anchor) + conditions = build_conditions(conditions, valid_conditions, path.names.map { |x| x.to_sym }) + + route = @set.add_route(app, path, conditions, defaults, name) + named_routes[name] = route if name && !named_routes[name] route end + def build_path(path, requirements, separators, anchor) + strexp = Journey::Router::Strexp.new( + path, + requirements, + SEPARATORS, + anchor) + + pattern = Journey::Path::Pattern.new(strexp) + + builder = Journey::GTG::Builder.new pattern.spec + + # Get all the symbol nodes followed by literals that are not the + # dummy node. + symbols = pattern.spec.grep(Journey::Nodes::Symbol).find_all { |n| + builder.followpos(n).first.literal? + } + + # Get all the symbol nodes preceded by literals. + symbols.concat pattern.spec.find_all(&:literal?).map { |n| + builder.followpos(n).first + }.find_all(&:symbol?) + + symbols.each { |x| + x.regexp = /(?:#{Regexp.union(x.regexp, '-')})+/ + } + + pattern + end + private :build_path + + def build_conditions(current_conditions, req_predicates, path_values) + conditions = current_conditions.dup + + verbs = conditions[:request_method] || [] + + # Rack-Mount requires that :request_method be a regular expression. + # :request_method represents the HTTP verb that matches this route. + # + # Here we munge values before they get sent on to rack-mount. + unless verbs.empty? + conditions[:request_method] = %r[^#{verbs.join('|')}$] + end + conditions.delete_if { |k,v| !(req_predicates.include?(k) || path_values.include?(k)) } + + conditions + end + private :build_conditions + class Generator #:nodoc: - PARAMETERIZE = { - :parameterize => lambda do |name, value| - if name == :controller - value - elsif value.is_a?(Array) - value.map { |v| Rack::Mount::Utils.escape_uri(v.to_param) }.join('/') - else - return nil unless param = value.to_param - param.split('/').map { |v| Rack::Mount::Utils.escape_uri(v) }.join("/") - end + PARAMETERIZE = lambda do |name, value| + if name == :controller + value + elsif value.is_a?(Array) + value.map { |v| v.to_param }.join('/') + elsif param = value.to_param + param end - } + end attr_reader :options, :recall, :set, :named_route @@ -374,12 +469,12 @@ module ActionDispatch normalize_options! normalize_controller_action_id! use_relative_controller! - controller.sub!(%r{^/}, '') if controller + normalize_controller! handle_nil_action! end def controller - @controller ||= @options[:controller] + @options[:controller] end def current_controller @@ -432,14 +527,19 @@ module ActionDispatch # if the current controller is "foo/bar/baz" and :controller => "baz/bat" # is specified, the controller becomes "foo/baz/bat" def use_relative_controller! - if !named_route && different_controller? + if !named_route && different_controller? && !controller.start_with?("/") old_parts = current_controller.split('/') size = controller.count("/") + 1 parts = old_parts[0...-size] << controller - @controller = @options[:controller] = parts.join("/") + @options[:controller] = parts.join("/") end end + # Remove leading slashes from controllers + def normalize_controller! + @options[:controller] = controller.sub(%r{^/}, '') if controller + end + # This handles the case of :action => nil being explicitly passed. # It is identical to :action => "index" def handle_nil_action! @@ -450,14 +550,14 @@ module ActionDispatch end def generate - path, params = @set.set.generate(:path_info, named_route, options, recall, PARAMETERIZE) + path, params = @set.formatter.generate(:path_info, named_route, options, recall, PARAMETERIZE) raise_routing_error unless path return [path, params.keys] if @extras [path, params] - rescue Rack::Mount::RoutingError + rescue Journey::Router::RoutingError raise_routing_error end @@ -497,30 +597,35 @@ module ActionDispatch RESERVED_OPTIONS = [:host, :protocol, :port, :subdomain, :domain, :tld_length, :trailing_slash, :anchor, :params, :only_path, :script_name] + def mounted? + false + end + + def optimize_routes_generation? + !mounted? && default_url_options.empty? + end + def _generate_prefix(options = {}) nil end + # The +options+ argument must be +nil+ or a hash whose keys are *symbols*. def url_for(options) - finalize! - options = (options || {}).reverse_merge!(default_url_options) - - handle_positional_args(options) + options = default_url_options.merge(options || {}) user, password = extract_authentication(options) path_segments = options.delete(:_path_segments) - script_name = options.delete(:script_name) - - path = (script_name.blank? ? _generate_prefix(options) : script_name.chomp('/')).to_s + script_name = options.delete(:script_name).presence || _generate_prefix(options) path_options = options.except(*RESERVED_OPTIONS) path_options = yield(path_options) if block_given? - path_addition, params = generate(path_options, path_segments || {}) - path << path_addition + path, params = generate(path_options, path_segments || {}) + params.merge!(options[:params] || {}) - ActionDispatch::Http::URL.url_for(options.merge({ + ActionDispatch::Http::URL.url_for(options.merge!({ :path => path, + :script_name => script_name, :params => params, :user => user, :password => password @@ -528,13 +633,13 @@ module ActionDispatch end def call(env) - finalize! - @set.call(env) + @router.call(env) end def recognize_path(path, environment = {}) method = (environment[:method] || "GET").to_s.upcase - path = Rack::Mount::Utils.normalize_path(path) unless path =~ %r{://} + path = Journey::Router::Utils.normalize_path(path) unless path =~ %r{://} + extras = environment[:extras] || {} begin env = Rack::MockRequest.env_for(path, {:method => method}) @@ -543,14 +648,16 @@ module ActionDispatch end req = @request_class.new(env) - @set.recognize(req) do |route, matches, params| + @router.recognize(req) do |route, matches, params| + params.merge!(extras) params.each do |key, value| if value.is_a?(String) - value = value.dup.force_encoding(Encoding::BINARY) if value.encoding_aware? + value = value.dup.force_encoding(Encoding::BINARY) params[key] = URI.parser.unescape(value) end end - + old_params = env[::ActionDispatch::Routing::RouteSet::PARAMETERS_KEY] + env[::ActionDispatch::Routing::RouteSet::PARAMETERS_KEY] = (old_params || {}).merge(params) dispatcher = route.app while dispatcher.is_a?(Mapper::Constraints) && dispatcher.matches?(env) do dispatcher = dispatcher.app @@ -579,16 +686,6 @@ module ActionDispatch end end - def handle_positional_args(options) - return unless args = options.delete(:_positional_args) - - keys = options.delete(:_positional_keys) - keys -= options.keys if args.size < keys.size - 1 # take format into account - - # Tell url_for to skip default_url_options - options.merge!(Hash[args.zip(keys).map { |v, k| [k, v] }]) - end - end end end |