diff options
Diffstat (limited to 'actionpack/lib/action_controller/routing/route_set.rb')
| -rw-r--r-- | actionpack/lib/action_controller/routing/route_set.rb | 699 |
1 files changed, 0 insertions, 699 deletions
diff --git a/actionpack/lib/action_controller/routing/route_set.rb b/actionpack/lib/action_controller/routing/route_set.rb deleted file mode 100644 index 8135b5811e..0000000000 --- a/actionpack/lib/action_controller/routing/route_set.rb +++ /dev/null @@ -1,699 +0,0 @@ -require 'rack/mount' -require 'forwardable' - -module ActionController - module Routing - class RouteSet #:nodoc: - NotFound = lambda { |env| - raise RoutingError, "No route matches #{env[::Rack::Mount::Const::PATH_INFO].inspect} with #{env.inspect}" - } - - PARAMETERS_KEY = 'action_dispatch.request.path_parameters' - - class Dispatcher - def initialize(options = {}) - defaults = options[:defaults] - @glob_param = options.delete(:glob) - end - - def call(env) - params = env[PARAMETERS_KEY] - merge_default_action!(params) - split_glob_param!(params) if @glob_param - params.each { |key, value| params[key] = URI.unescape(value) if value.is_a?(String) } - - if env['action_controller.recognize'] - [200, {}, params] - else - controller = controller(params) - controller.action(params[:action]).call(env) - end - end - - private - def controller(params) - if params && params.has_key?(:controller) - controller = "#{params[:controller].camelize}Controller" - ActiveSupport::Inflector.constantize(controller) - end - end - - def merge_default_action!(params) - params[:action] ||= 'index' - end - - def split_glob_param!(params) - params[@glob_param] = params[@glob_param].split('/').map { |v| URI.unescape(v) } - end - end - - module RouteExtensions - def segment_keys - conditions[:path_info].names.compact.map { |key| key.to_sym } - end - end - - # Mapper instances are used to build routes. The object passed to the draw - # block in config/routes.rb is a Mapper instance. - # - # Mapper instances have relatively few instance methods, in order to avoid - # clashes with named routes. - class Mapper #:doc: - include ActionController::Resources - - def initialize(set) #:nodoc: - @set = set - end - - # Create an unnamed route with the provided +path+ and +options+. See - # ActionController::Routing for an introduction to routes. - def connect(path, options = {}) - @set.add_route(path, options) - end - - # Creates a named route called "root" for matching the root level request. - def root(options = {}) - if options.is_a?(Symbol) - if source_route = @set.named_routes.routes[options] - options = source_route.defaults.merge({ :conditions => source_route.conditions }) - end - end - named_route("root", '', options) - end - - def named_route(name, path, options = {}) #:nodoc: - @set.add_named_route(name, path, options) - end - - # Enables the use of resources in a module by setting the name_prefix, path_prefix, and namespace for the model. - # Example: - # - # map.namespace(:admin) do |admin| - # admin.resources :products, - # :has_many => [ :tags, :images, :variants ] - # end - # - # This will create +admin_products_url+ pointing to "admin/products", which will look for an Admin::ProductsController. - # It'll also create +admin_product_tags_url+ pointing to "admin/products/#{product_id}/tags", which will look for - # Admin::TagsController. - def namespace(name, options = {}, &block) - if options[:namespace] - with_options({:path_prefix => "#{options.delete(:path_prefix)}/#{name}", :name_prefix => "#{options.delete(:name_prefix)}#{name}_", :namespace => "#{options.delete(:namespace)}#{name}/" }.merge(options), &block) - else - with_options({:path_prefix => name, :name_prefix => "#{name}_", :namespace => "#{name}/" }.merge(options), &block) - end - end - - def method_missing(route_name, *args, &proc) #:nodoc: - super unless args.length >= 1 && proc.nil? - @set.add_named_route(route_name, *args) - end - end - - # A NamedRouteCollection instance is a collection of named routes, and also - # maintains an anonymous module that can be used to install helpers for the - # named routes. - class NamedRouteCollection #:nodoc: - include Enumerable - attr_reader :routes, :helpers - - def initialize - clear! - end - - def clear! - @routes = {} - @helpers = [] - - @module ||= Module.new - @module.instance_methods.each do |selector| - @module.class_eval { remove_method selector } - end - end - - def add(name, route) - routes[name.to_sym] = route - define_named_route_methods(name, route) - end - - def get(name) - routes[name.to_sym] - end - - alias []= add - alias [] get - alias clear clear! - - def each - routes.each { |name, route| yield name, route } - self - end - - def names - routes.keys - end - - def length - 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}" - 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 - end - end - - def named_helper_module_eval(code, *args) - @module.module_eval(code, *args) - end - - def define_hash_access(route, name, kind, options) - selector = hash_access_name(name, kind) - named_helper_module_eval <<-end_eval # We use module_eval to avoid leaks - def #{selector}(options = nil) # def hash_for_users_url(options = nil) - options ? #{options.inspect}.merge(options) : #{options.inspect} # options ? {:only_path=>false}.merge(options) : {:only_path=>false} - end # end - protected :#{selector} # protected :hash_for_users_url - end_eval - helpers << selector - end - - def define_url_helper(route, name, kind, options) - selector = url_helper_name(name, kind) - # The segment keys used for positional parameters - - hash_access_method = hash_access_name(name, kind) - - # allow 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') - # - named_helper_module_eval <<-end_eval # We use module_eval to avoid leaks - def #{selector}(*args) # def users_url(*args) - # - opts = if args.empty? || Hash === args.first # opts = if args.empty? || Hash === args.first - args.first || {} # args.first || {} - else # else - options = args.extract_options! # options = args.extract_options! - args = args.zip(#{route.segment_keys.inspect}).inject({}) do |h, (v, k)| # args = args.zip([]).inject({}) do |h, (v, k)| - h[k] = v # h[k] = v - h # h - end # end - options.merge(args) # options.merge(args) - end # end - # - url_for(#{hash_access_method}(opts)) # url_for(hash_for_users_url(opts)) - # - end # end - #Add an alias to support the now deprecated formatted_* URL. # #Add an alias to support the now deprecated formatted_* URL. - def formatted_#{selector}(*args) # def formatted_users_url(*args) - ActiveSupport::Deprecation.warn( # ActiveSupport::Deprecation.warn( - "formatted_#{selector}() has been deprecated. " + # "formatted_users_url() has been deprecated. " + - "Please pass format to the standard " + # "Please pass format to the standard " + - "#{selector} method instead.", caller) # "users_url method instead.", caller) - #{selector}(*args) # users_url(*args) - end # end - protected :#{selector} # protected :users_url - end_eval - helpers << selector - end - end - - attr_accessor :routes, :named_routes, :configuration_files - - def initialize - self.configuration_files = [] - - self.routes = [] - self.named_routes = NamedRouteCollection.new - - clear! - end - - def draw - clear! - yield Mapper.new(self) - @set.add_route(NotFound) - install_helpers - @set.freeze - end - - def clear! - routes.clear - named_routes.clear - @set = ::Rack::Mount::RouteSet.new(:parameters_key => PARAMETERS_KEY) - 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 - - def empty? - routes.empty? - end - - def add_configuration_file(path) - self.configuration_files << path - end - - # Deprecated accessor - def configuration_file=(path) - add_configuration_file(path) - end - - # Deprecated accessor - def configuration_file - configuration_files - end - - def load! - Routing.use_controllers!(nil) # Clear the controller cache so we may discover new ones - load_routes! - end - - # reload! will always force a reload whereas load checks the timestamp first - alias reload! load! - - def reload - if configuration_files.any? && @routes_last_modified - if routes_changed_at == @routes_last_modified - return # routes didn't change, don't reload - else - @routes_last_modified = routes_changed_at - end - end - - load! - end - - def load_routes! - if configuration_files.any? - configuration_files.each { |config| load(config) } - @routes_last_modified = routes_changed_at - else - draw do |map| - map.connect ":controller/:action/:id" - end - end - end - - def routes_changed_at - routes_changed_at = nil - - configuration_files.each do |config| - config_changed_at = File.stat(config).mtime - - if routes_changed_at.nil? || config_changed_at > routes_changed_at - routes_changed_at = config_changed_at - end - end - - routes_changed_at - end - - def add_route(path, options = {}) - options = options.dup - - if conditions = options.delete(:conditions) - conditions = conditions.dup - method = [conditions.delete(:method)].flatten.compact - method.map! { |m| - m = m.to_s.upcase - - if m == "HEAD" - raise ArgumentError, "HTTP method HEAD is invalid in route conditions. Rails processes HEAD requests the same as GETs, returning just the response headers" - end - - unless HTTP_METHODS.include?(m.downcase.to_sym) - raise ArgumentError, "Invalid HTTP method specified in route conditions" - end - - m - } - - if method.length > 1 - method = Regexp.union(*method) - elsif method.length == 1 - method = method.first - else - method = nil - end - end - - path_prefix = options.delete(:path_prefix) - name_prefix = options.delete(:name_prefix) - namespace = options.delete(:namespace) - - name = options.delete(:_name) - name = "#{name_prefix}#{name}" if name_prefix - - requirements = options.delete(:requirements) || {} - defaults = options.delete(:defaults) || {} - options.each do |k, v| - if v.is_a?(Regexp) - if value = options.delete(k) - requirements[k.to_sym] = value - end - else - value = options.delete(k) - defaults[k.to_sym] = value.is_a?(Symbol) ? value : value.to_param - end - end - - requirements.each do |_, requirement| - if requirement.source =~ %r{\A(\\A|\^)|(\\Z|\\z|\$)\Z} - raise ArgumentError, "Regexp anchor characters are not allowed in routing requirements: #{requirement.inspect}" - end - if requirement.multiline? - raise ArgumentError, "Regexp multiline option not allowed in routing requirements: #{requirement.inspect}" - end - end - - possible_names = Routing.possible_controllers.collect { |n| Regexp.escape(n) } - requirements[:controller] ||= Regexp.union(*possible_names) - - if defaults[:controller] - defaults[:action] ||= 'index' - defaults[:controller] = defaults[:controller].to_s - defaults[:controller] = "#{namespace}#{defaults[:controller]}" if namespace - end - - if defaults[:action] - defaults[:action] = defaults[:action].to_s - end - - if path.is_a?(String) - path = "#{path_prefix}/#{path}" if path_prefix - path = path.gsub('.:format', '(.:format)') - path = optionalize_trailing_dynamic_segments(path, requirements, defaults) - glob = $1.to_sym if path =~ /\/\*(\w+)$/ - path = ::Rack::Mount::Utils.normalize_path(path) - path = ::Rack::Mount::Strexp.compile(path, requirements, %w( / . ? )) - - if glob && !defaults[glob].blank? - raise RoutingError, "paths cannot have non-empty default values" - end - end - - app = Dispatcher.new(:defaults => defaults, :glob => glob) - - conditions = {} - conditions[:request_method] = method if method - conditions[:path_info] = path if path - - route = @set.add_route(app, conditions, defaults, name) - route.extend(RouteExtensions) - routes << route - route - end - - def add_named_route(name, path, options = {}) - options[:_name] = name - route = add_route(path, options) - named_routes[route.name] = route - route - end - - def options_as_params(options) - # If an explicit :controller was given, always make :action explicit - # too, so that action expiry works as expected for things like - # - # generate({:controller => 'content'}, {:controller => 'content', :action => 'show'}) - # - # (the above is from the unit tests). In the above case, because the - # controller was explicitly given, but no action, the action is implied to - # be "index", not the recalled action of "show". - # - # great fun, eh? - - options_as_params = options.clone - options_as_params[:action] ||= 'index' if options[:controller] - options_as_params[:action] = options_as_params[:action].to_s if options_as_params[:action] - options_as_params - end - - def build_expiry(options, recall) - recall.inject({}) do |expiry, (key, recalled_value)| - expiry[key] = (options.key?(key) && options[key].to_param != recalled_value.to_param) - expiry - end - end - - # Generate the path indicated by the arguments, and return an array of - # the keys that were not used to generate it. - def extra_keys(options, recall={}) - generate_extras(options, recall).last - end - - def generate_extras(options, recall={}) - generate(options, recall, :generate_extras) - end - - def generate(options, recall = {}, method = :generate) - options, recall = options.dup, recall.dup - named_route = options.delete(:use_route) - - options = options_as_params(options) - expire_on = build_expiry(options, recall) - - recall[:action] ||= 'index' if options[:controller] || recall[:controller] - - if recall[:controller] && (!options.has_key?(:controller) || options[:controller] == recall[:controller]) - options[:controller] = recall.delete(:controller) - - if recall[:action] && (!options.has_key?(:action) || options[:action] == recall[:action]) - options[:action] = recall.delete(:action) - - if recall[:id] && (!options.has_key?(:id) || options[:id] == recall[:id]) - options[:id] = recall.delete(:id) - end - end - end - - options[:controller] = options[:controller].to_s if options[:controller] - - if !named_route && expire_on[:controller] && options[:controller] && options[:controller][0] != ?/ - old_parts = recall[:controller].split('/') - new_parts = options[:controller].split('/') - parts = old_parts[0..-(new_parts.length + 1)] + new_parts - options[:controller] = parts.join('/') - end - - options[:controller] = options[:controller][1..-1] if options[:controller] && options[:controller][0] == ?/ - - merged = options.merge(recall) - if options.has_key?(:action) && options[:action].nil? - options.delete(:action) - recall[:action] = 'index' - end - recall[:action] = options.delete(:action) if options[:action] == 'index' - - path = _uri(named_route, options, recall) - if path && method == :generate_extras - uri = URI(path) - extras = uri.query ? - Rack::Utils.parse_nested_query(uri.query).keys.map { |k| k.to_sym } : - [] - [uri.path, extras] - elsif path - path - else - raise RoutingError, "No route matches #{options.inspect}" - end - rescue Rack::Mount::RoutingError - raise RoutingError, "No route matches #{options.inspect}" - end - - def call(env) - @set.call(env) - rescue ActionController::RoutingError => e - raise e if env['action_controller.rescue_error'] == false - - method, path = env['REQUEST_METHOD'].downcase.to_sym, env['PATH_INFO'] - - # Route was not recognized. Try to find out why (maybe wrong verb). - allows = HTTP_METHODS.select { |verb| - begin - recognize_path(path, {:method => verb}, false) - rescue ActionController::RoutingError - nil - end - } - - if !HTTP_METHODS.include?(method) - raise NotImplemented.new(*allows) - elsif !allows.empty? - raise MethodNotAllowed.new(*allows) - else - raise e - end - end - - def recognize(request) - params = recognize_path(request.path, extract_request_environment(request)) - request.path_parameters = params.with_indifferent_access - "#{params[:controller].to_s.camelize}Controller".constantize - end - - def recognize_path(path, environment = {}, rescue_error = true) - method = (environment[:method] || "GET").to_s.upcase - - begin - env = Rack::MockRequest.env_for(path, {:method => method}) - rescue URI::InvalidURIError => e - raise RoutingError, e.message - end - - env['action_controller.recognize'] = true - env['action_controller.rescue_error'] = rescue_error - status, headers, body = call(env) - body - end - - # Subclasses and plugins may override this method to extract further attributes - # from the request, for use by route conditions and such. - def extract_request_environment(request) - { :method => request.method } - end - - private - def _uri(named_route, params, recall) - params = URISegment.wrap_values(params) - recall = URISegment.wrap_values(recall) - - unless result = @set.generate(:path_info, named_route, params, recall) - return - end - - uri, params = result - params.each do |k, v| - if v._value - params[k] = v._value - else - params.delete(k) - end - end - - uri << "?#{Rack::Mount::Utils.build_nested_query(params)}" if uri && params.any? - uri - end - - class URISegment < Struct.new(:_value, :_escape) - EXCLUDED = [:controller] - - def self.wrap_values(hash) - hash.inject({}) { |h, (k, v)| - h[k] = new(v, !EXCLUDED.include?(k.to_sym)) - h - } - end - - extend Forwardable - def_delegators :_value, :==, :eql?, :hash - - def to_param - @to_param ||= begin - if _value.is_a?(Array) - _value.map { |v| _escaped(v) }.join('/') - else - _escaped(_value) - end - end - end - alias_method :to_s, :to_param - - private - def _escaped(value) - v = value.respond_to?(:to_param) ? value.to_param : value - _escape ? Rack::Mount::Utils.escape_uri(v) : v.to_s - end - end - - def optionalize_trailing_dynamic_segments(path, requirements, defaults) - path = (path =~ /^\//) ? path.dup : "/#{path}" - optional, segments = true, [] - - required_segments = requirements.keys - required_segments -= defaults.keys.compact - - old_segments = path.split('/') - old_segments.shift - length = old_segments.length - - old_segments.reverse.each_with_index do |segment, index| - required_segments.each do |required| - if segment =~ /#{required}/ - optional = false - break - end - end - - if optional - if segment == ":id" && segments.include?(":action") - optional = false - elsif segment == ":controller" || segment == ":action" || segment == ":id" - # Ignore - elsif !(segment =~ /^:\w+$/) && - !(segment =~ /^:\w+\(\.:format\)$/) - optional = false - elsif segment =~ /^:(\w+)$/ - if defaults.has_key?($1.to_sym) - defaults.delete($1.to_sym) - else - optional = false - end - end - end - - if optional && index < length - 1 - segments.unshift('(/', segment) - segments.push(')') - elsif optional - segments.unshift('/(', segment) - segments.push(')') - else - segments.unshift('/', segment) - end - end - - segments.join - end - end - end -end |