diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/routing/route_set.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/routing/route_set.rb | 316 |
1 files changed, 188 insertions, 128 deletions
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb index 705314f8ab..40c767e685 100644 --- a/actionpack/lib/action_dispatch/routing/route_set.rb +++ b/actionpack/lib/action_dispatch/routing/route_set.rb @@ -1,10 +1,13 @@ require 'action_dispatch/journey' require 'forwardable' require 'thread_safe' +require 'active_support/concern' require 'active_support/core_ext/object/to_query' require 'active_support/core_ext/hash/slice' require 'active_support/core_ext/module/remove_method' +require 'active_support/core_ext/array/extract_options' require 'action_controller/metal/exceptions' +require 'action_dispatch/http/request' module ActionDispatch module Routing @@ -18,18 +21,19 @@ module ActionDispatch PARAMETERS_KEY = 'action_dispatch.request.path_parameters' class Dispatcher #:nodoc: - def initialize(options={}) - @defaults = options[:defaults] - @glob_param = options.delete(:glob) + def initialize(defaults) + @defaults = defaults @controller_class_names = ThreadSafe::Cache.new end def call(env) params = env[PARAMETERS_KEY] - # If any of the path parameters has a invalid encoding then + # If any of the path parameters has an invalid encoding then # raise since it's likely to trigger errors further on. params.each do |key, value| + next unless value.respond_to?(:valid_encoding?) + unless value.valid_encoding? raise ActionController::BadRequest, "Invalid parameter: #{key} => #{value}" end @@ -48,7 +52,6 @@ module ActionDispatch 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) @@ -84,10 +87,6 @@ module ActionDispatch def merge_default_action!(params) params[:action] ||= 'index' end - - def split_glob_param!(params) - params[@glob_param] = params[@glob_param].split('/').map { |v| URI.parser.unescape(v) } - end end # A NamedRouteCollection instance is a collection of named routes, and also @@ -100,25 +99,7 @@ module ActionDispatch def initialize @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 + @module = Module.new end def helper_names @@ -160,68 +141,137 @@ module ActionDispatch routes.length end - private + class UrlHelper # :nodoc: + def self.create(route, options) + if optimize_helper?(route) + OptimizedUrlHelper.new(route, options) + else + new route, options + end + end - def define_named_route_methods(name, route) - define_url_helper route, :"#{name}_path", - route.defaults.merge(:use_route => name, :only_path => true) - define_url_helper route, :"#{name}_url", - route.defaults.merge(:use_route => name, :only_path => false) + def self.optimize_helper?(route) + !route.glob? && route.path.requirements.empty? end - # Create a url helper allowing ordered parameters to be associated - # with corresponding dynamic segments, so you can do: - # - # foo_url(bar, baz, bang) - # - # Instead of: - # - # foo_url(bar: bar, baz: baz, bang: bang) - # - # Also allow options hash, so you can do: - # - # foo_url(bar, baz, bang, sort_by: 'baz') - # - def define_url_helper(route, name, options) - @module.remove_possible_method name - @module.module_eval <<-END_EVAL, __FILE__, __LINE__ + 1 - def #{name}(*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 + class OptimizedUrlHelper < UrlHelper # :nodoc: + attr_reader :arg_size + + def initialize(route, options) + super + @required_parts = @route.required_parts + @arg_size = @required_parts.size + end + + def call(t, args) + if args.size == arg_size && !args.last.is_a?(Hash) && optimize_routes_generation?(t) + options = t.url_options.merge @options + options[:path] = optimized_helper(args) + ActionDispatch::Http::URL.url_for(options) + else + super end - END_EVAL + end + + private + + def optimized_helper(args) + params = parameterize_args(args) + missing_keys = missing_keys(params) + + unless missing_keys.empty? + raise_generation_error(params, missing_keys) + end + + @route.format params + end + + def optimize_routes_generation?(t) + t.send(:optimize_routes_generation?) + end + + def parameterize_args(args) + params = {} + @required_parts.zip(args.map(&:to_param)) { |k,v| params[k] = v } + params + end + + def missing_keys(args) + args.select{ |part, arg| arg.nil? || arg.empty? }.keys + end + + def raise_generation_error(args, missing_keys) + constraints = Hash[@route.requirements.merge(args).sort] + message = "No route matches #{constraints.inspect}" + message << " missing required keys: #{missing_keys.sort.inspect}" + + raise ActionController::UrlGenerationError, message + end + end - helpers << name + def initialize(route, options) + @options = options + @segment_keys = route.segment_keys.uniq + @route = route end - # Clause check about when we need to generate an optimized helper. - def optimize_helper?(route) #:nodoc: - route.requirements.except(:controller, :action).empty? + def call(t, args) + controller_options = t.url_options + options = controller_options.merge @options + hash = handle_positional_args(controller_options, args, options, @segment_keys) + t._routes.url_for(hash) end - # Generates the interpolation to be used in the optimized helper. - def optimized_helper(route) - string_route = route.ast.to_s + def handle_positional_args(controller_options, args, result, path_params) + inner_options = args.extract_options! - while string_route.gsub!(/\([^\)]*\)/, "") - true + if args.size > 0 + if args.size < path_params.size - 1 # take format into account + path_params -= controller_options.keys + path_params -= result.keys + end + path_params.each { |param| + result[param] = inner_options[param] || args.shift + } 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 + result.merge!(inner_options) + end + end + + private + # Create a url helper allowing ordered parameters to be associated + # with corresponding dynamic segments, so you can do: + # + # foo_url(bar, baz, bang) + # + # Instead of: + # + # foo_url(bar: bar, baz: baz, bang: bang) + # + # Also allow options hash, so you can do: + # + # foo_url(bar, baz, bang, sort_by: 'baz') + # + def define_url_helper(route, name, options) + helper = UrlHelper.create(route, options.dup) - string_route + @module.remove_possible_method name + @module.module_eval do + define_method(name) do |*args| + helper.call self, args + end end + + helpers << name + end + + def define_named_route_methods(name, route) + define_url_helper route, :"#{name}_path", + route.defaults.merge(:use_route => name, :only_path => true) + define_url_helper route, :"#{name}_url", + route.defaults.merge(:use_route => name, :only_path => false) + end end attr_accessor :formatter, :set, :named_routes, :default_scope, :router @@ -246,9 +296,7 @@ module ActionDispatch @finalized = false @set = Journey::Routes.new - @router = Journey::Router.new(@set, { - :parameters_key => PARAMETERS_KEY, - :request_class => request_class}) + @router = Journey::Router.new @set @formatter = Journey::Formatter.new @set end @@ -299,7 +347,7 @@ module ActionDispatch include UrlFor end - # Contains all the mounted helpers accross different + # Contains all the mounted helpers across 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. @@ -337,6 +385,8 @@ module ActionDispatch @_routes = routes class << self delegate :url_for, :optimize_routes_generation?, :to => '@_routes' + attr_reader :_routes + def url_options; {}; end end # Make named_routes available in the module singleton @@ -368,11 +418,19 @@ 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) + if name && named_routes[name] + raise ArgumentError, "Invalid route name, already in use: '#{name}' \n" \ + "You may have defined two routes with the same name using the `:as` option, or " \ + "you may be overriding a route already defined by a resource with the same naming. " \ + "For the latter, you can restrict the routes created with `resources` as explained here: \n" \ + "http://guides.rubyonrails.org/routing.html#restricting-the-routes-created" + end + path = build_path(conditions.delete(:path_info), requirements, SEPARATORS, anchor) conditions = build_conditions(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] + named_routes[name] = route if name route end @@ -444,11 +502,12 @@ module ActionDispatch @recall = recall.dup @set = set + normalize_recall! normalize_options! normalize_controller_action_id! use_relative_controller! normalize_controller! - handle_nil_action! + normalize_action! end def controller @@ -467,6 +526,11 @@ module ActionDispatch end end + # Set 'index' as default action for recall + def normalize_recall! + @recall[:action] ||= 'index' + end + def normalize_options! # If an explicit :controller was given, always make :action explicit # too, so that action expiry works as expected for things like @@ -482,8 +546,8 @@ module ActionDispatch options[:controller] = options[:controller].to_s end - if options[:action] - options[:action] = options[:action].to_s + if options.key?(:action) + options[:action] = (options[:action] || 'index').to_s end end @@ -493,8 +557,6 @@ module ActionDispatch # :controller, :action or :id is not found, don't pull any # more keys from the recall. def normalize_controller_action_id! - @recall[:action] ||= 'index' if current_controller - use_recall_for(:controller) or return use_recall_for(:action) or return use_recall_for(:id) @@ -516,19 +578,17 @@ module ActionDispatch @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! - if options.has_key?(:action) && options[:action].nil? - options[:action] = 'index' + # Move 'index' action from options to recall + def normalize_action! + if @options[:action] == 'index' + @recall[:action] = @options.delete(:action) end - recall[:action] = options.delete(:action) if options[:action] == 'index' end # Generates a path from routes, returns [path, params]. # If no route is generated the formatter will raise ActionController::UrlGenerationError def generate - @set.formatter.generate(:path_info, named_route, options, recall, PARAMETERIZE) + @set.formatter.generate(named_route, options, recall, PARAMETERIZE) end def different_controller? @@ -573,41 +633,52 @@ module ActionDispatch !mounted? && default_url_options.empty? end - def _generate_prefix(options = {}) - nil + def find_script_name(options) + options.delete :script_name end - # The +options+ argument must be +nil+ or a hash whose keys are *symbols*. + # The +options+ argument must be a hash whose keys are *symbols*. def url_for(options) - options = default_url_options.merge(options || {}) + options = default_url_options.merge options + + user = password = nil + + if options[:user] && options[:password] + user = options.delete :user + password = options.delete :password + end - user, password = extract_authentication(options) - recall = options.delete(:_recall) + recall = options.delete(:_recall) { {} } - original_script_name = options.delete(:original_script_name).presence - script_name = options.delete(:script_name).presence || _generate_prefix(options) + original_script_name = options.delete(:original_script_name) + script_name = find_script_name options if script_name && original_script_name script_name = original_script_name + script_name end - path_options = options.except(*RESERVED_OPTIONS) - path_options = yield(path_options) if block_given? + path_options = options.dup + RESERVED_OPTIONS.each { |ro| path_options.delete ro } - path, params = generate(path_options, recall || {}) - params.merge!(options[:params] || {}) + path, params = generate(path_options, recall) - ActionDispatch::Http::URL.url_for(options.merge!({ - :path => path, - :script_name => script_name, - :params => params, - :user => user, - :password => password - })) + if options.key? :params + params.merge! options[:params] + end + + options[:path] = path + options[:script_name] = script_name + options[:params] = params + options[:user] = user + options[:password] = password + + ActionDispatch::Http::URL.url_for(options) end def call(env) - @router.call(env) + req = request_class.new(env) + req.path_info = Journey::Router::Utils.normalize_path(req.path_info) + @router.serve(req) end def recognize_path(path, environment = {}) @@ -621,8 +692,8 @@ module ActionDispatch raise ActionController::RoutingError, e.message end - req = @request_class.new(env) - @router.recognize(req) do |route, matches, params| + req = request_class.new(env) + @router.recognize(req) do |route, params| params.merge!(extras) params.each do |key, value| if value.is_a?(String) @@ -630,8 +701,8 @@ module ActionDispatch 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) + old_params = req.path_parameters + req.path_parameters = old_params.merge params dispatcher = route.app while dispatcher.is_a?(Mapper::Constraints) && dispatcher.matches?(env) do dispatcher = dispatcher.app @@ -649,17 +720,6 @@ module ActionDispatch raise ActionController::RoutingError, "No route matches #{path.inspect}" end - - private - - def extract_authentication(options) - if options[:user] && options[:password] - [options.delete(:user), options.delete(:password)] - else - nil - end - end - end end end |