diff options
Diffstat (limited to 'actionpack/lib/action_controller/metal')
4 files changed, 140 insertions, 53 deletions
diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb index d86a793e4c..f8e0d9cf6c 100644 --- a/actionpack/lib/action_controller/metal/conditional_get.rb +++ b/actionpack/lib/action_controller/metal/conditional_get.rb @@ -228,7 +228,7 @@ module ActionController expires_in 100.years, public: public yield if stale?(etag: "#{version}-#{request.fullpath}", - last_modified: Time.parse('2011-01-01').utc, + last_modified: Time.new(2011, 1, 1).utc, public: public) end diff --git a/actionpack/lib/action_controller/metal/renderers.rb b/actionpack/lib/action_controller/metal/renderers.rb index 22e0bb5955..90fb34e386 100644 --- a/actionpack/lib/action_controller/metal/renderers.rb +++ b/actionpack/lib/action_controller/metal/renderers.rb @@ -11,6 +11,7 @@ module ActionController Renderers.remove(key) end + # See <tt>Responder#api_behavior</tt> class MissingRenderer < LoadError def initialize(format) super "No renderer defined for format: #{format}" @@ -20,40 +21,25 @@ module ActionController module Renderers extend ActiveSupport::Concern + # A Set containing renderer names that correspond to available renderer procs. + # Default values are <tt>:json</tt>, <tt>:js</tt>, <tt>:xml</tt>. + RENDERERS = Set.new + included do class_attribute :_renderers self._renderers = Set.new.freeze end - module ClassMethods - def use_renderers(*args) - renderers = _renderers + args - self._renderers = renderers.freeze - end - alias use_renderer use_renderers - end - - def render_to_body(options) - _render_to_body_with_renderer(options) || super - end + # Used in <tt>ActionController::Base</tt> + # and <tt>ActionController::API</tt> to include all + # renderers by default. + module All + extend ActiveSupport::Concern + include Renderers - def _render_to_body_with_renderer(options) - _renderers.each do |name| - if options.key?(name) - _process_options(options) - method_name = Renderers._render_with_renderer_method_name(name) - return send(method_name, options.delete(name), options) - end + included do + self._renderers = RENDERERS end - nil - end - - # A Set containing renderer names that correspond to available renderer procs. - # Default values are <tt>:json</tt>, <tt>:js</tt>, <tt>:xml</tt>. - RENDERERS = Set.new - - def self._render_with_renderer_method_name(key) - "_render_with_renderer_#{key}" end # Adds a new renderer to call within controller actions. @@ -103,13 +89,70 @@ module ActionController remove_method(method_name) if method_defined?(method_name) end - module All - extend ActiveSupport::Concern - include Renderers + def self._render_with_renderer_method_name(key) + "_render_with_renderer_#{key}" + end - included do - self._renderers = RENDERERS + module ClassMethods + + # Adds, by name, a renderer or renderers to the +_renderers+ available + # to call within controller actions. + # + # It is useful when rendering from an <tt>ActionController::Metal</tt> controller or + # otherwise to add an available renderer proc to a specific controller. + # + # Both <tt>ActionController::Base</tt> and <tt>ActionController::API</tt> + # include <tt>ActionController::Renderers::All</tt>, making all renderers + # avaialable in the controller. See <tt>Renderers::RENDERERS</tt> and <tt>Renderers.add</tt>. + # + # Since <tt>ActionController::Metal</tt> controllers cannot render, the controller + # must include <tt>AbstractController::Rendering</tt>, <tt>ActionController::Rendering</tt>, + # and <tt>ActionController::Renderers</tt>, and have at lest one renderer. + # + # Rather than including <tt>ActionController::Renderers::All</tt> and including all renderers, + # you may specify which renderers to include by passing the renderer name or names to + # +use_renderers+. For example, a controller that includes only the <tt>:json</tt> renderer + # (+_render_with_renderer_json+) might look like: + # + # class MetalRenderingController < ActionController::Metal + # include AbstractController::Rendering + # include ActionController::Rendering + # include ActionController::Renderers + # + # use_renderers :json + # + # def show + # render json: record + # end + # end + # + # You must specify a +use_renderer+, else the +controller.renderer+ and + # +controller._renderers+ will be <tt>nil</tt>, and the action will fail. + def use_renderers(*args) + renderers = _renderers + args + self._renderers = renderers.freeze end + alias use_renderer use_renderers + end + + # Called by +render+ in <tt>AbstractController::Rendering</tt> + # which sets the return value as the +response_body+. + # + # If no renderer is found, +super+ returns control to + # <tt>ActionView::Rendering.render_to_body</tt>, if present. + def render_to_body(options) + _render_to_body_with_renderer(options) || super + end + + def _render_to_body_with_renderer(options) + _renderers.each do |name| + if options.key?(name) + _process_options(options) + method_name = Renderers._render_with_renderer_method_name(name) + return send(method_name, options.delete(name), options) + end + end + nil end add :json do |json, options| diff --git a/actionpack/lib/action_controller/metal/request_forgery_protection.rb b/actionpack/lib/action_controller/metal/request_forgery_protection.rb index 26c4550f89..91b3403ad5 100644 --- a/actionpack/lib/action_controller/metal/request_forgery_protection.rb +++ b/actionpack/lib/action_controller/metal/request_forgery_protection.rb @@ -81,6 +81,10 @@ module ActionController #:nodoc: config_accessor :forgery_protection_origin_check self.forgery_protection_origin_check = false + # Controls whether form-action/method specific CSRF tokens are used. + config_accessor :per_form_csrf_tokens + self.per_form_csrf_tokens = false + helper_method :form_authenticity_token helper_method :protect_against_forgery? end @@ -277,16 +281,25 @@ module ActionController #:nodoc: end # Sets the token value for the current session. - def form_authenticity_token - masked_authenticity_token(session) + def form_authenticity_token(form_options: {}) + masked_authenticity_token(session, form_options: form_options) end # Creates a masked version of the authenticity token that varies # on each request. The masking is used to mitigate SSL attacks # like BREACH. - def masked_authenticity_token(session) + def masked_authenticity_token(session, form_options: {}) + action, method = form_options.values_at(:action, :method) + + raw_token = if per_form_csrf_tokens && action && method + action_path = normalize_action_path(action) + per_form_csrf_token(session, action_path, method) + else + real_csrf_token(session) + end + one_time_pad = SecureRandom.random_bytes(AUTHENTICITY_TOKEN_LENGTH) - encrypted_csrf_token = xor_byte_strings(one_time_pad, real_csrf_token(session)) + encrypted_csrf_token = xor_byte_strings(one_time_pad, raw_token) masked_token = one_time_pad + encrypted_csrf_token Base64.strict_encode64(masked_token) end @@ -316,28 +329,54 @@ module ActionController #:nodoc: compare_with_real_token masked_token, session elsif masked_token.length == AUTHENTICITY_TOKEN_LENGTH * 2 - # Split the token into the one-time pad and the encrypted - # value and decrypt it - one_time_pad = masked_token[0...AUTHENTICITY_TOKEN_LENGTH] - encrypted_csrf_token = masked_token[AUTHENTICITY_TOKEN_LENGTH..-1] - csrf_token = xor_byte_strings(one_time_pad, encrypted_csrf_token) - - compare_with_real_token csrf_token, session + csrf_token = unmask_token(masked_token) + compare_with_real_token(csrf_token, session) || + valid_per_form_csrf_token?(csrf_token, session) else false # Token is malformed end end + def unmask_token(masked_token) + # Split the token into the one-time pad and the encrypted + # value and decrypt it + one_time_pad = masked_token[0...AUTHENTICITY_TOKEN_LENGTH] + encrypted_csrf_token = masked_token[AUTHENTICITY_TOKEN_LENGTH..-1] + xor_byte_strings(one_time_pad, encrypted_csrf_token) + end + def compare_with_real_token(token, session) ActiveSupport::SecurityUtils.secure_compare(token, real_csrf_token(session)) end + def valid_per_form_csrf_token?(token, session) + if per_form_csrf_tokens + correct_token = per_form_csrf_token( + session, + normalize_action_path(request.fullpath), + request.request_method + ) + + ActiveSupport::SecurityUtils.secure_compare(token, correct_token) + else + false + end + end + def real_csrf_token(session) session[:_csrf_token] ||= SecureRandom.base64(AUTHENTICITY_TOKEN_LENGTH) Base64.strict_decode64(session[:_csrf_token]) end + def per_form_csrf_token(session, action_path, method) + OpenSSL::HMAC.digest( + OpenSSL::Digest::SHA256.new, + real_csrf_token(session), + [action_path, method.downcase].join("#") + ) + end + def xor_byte_strings(s1, s2) s1.bytes.zip(s2.bytes).map { |(c1,c2)| c1 ^ c2 }.pack('c*') end @@ -362,5 +401,9 @@ module ActionController #:nodoc: true end end + + def normalize_action_path(action_path) + action_path.split('?').first.to_s.chomp('/') + end end end diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb index 957aa746c0..5cbf4157a4 100644 --- a/actionpack/lib/action_controller/metal/strong_parameters.rb +++ b/actionpack/lib/action_controller/metal/strong_parameters.rb @@ -109,7 +109,8 @@ module ActionController cattr_accessor :permit_all_parameters, instance_accessor: false cattr_accessor :action_on_unpermitted_parameters, instance_accessor: false - delegate :keys, :key?, :has_key?, :empty?, :inspect, to: :@parameters + delegate :keys, :key?, :has_key?, :empty?, :include?, :inspect, + :as_json, to: :@parameters # By default, never raise an UnpermittedParameters exception if these # params are present. The default includes both 'controller' and 'action' @@ -176,7 +177,7 @@ module ActionController # safe_params.to_h # => {"name"=>"Senjougahara Hitagi"} def to_h if permitted? - convert_parameters_to_hashes(@parameters) + convert_parameters_to_hashes(@parameters, :to_h) else slice(*self.class.always_permitted_parameters).permit!.to_h end @@ -186,7 +187,7 @@ module ActionController # <tt>ActiveSupport::HashWithIndifferentAccess</tt> representation of this # parameter. def to_unsafe_h - convert_parameters_to_hashes(@parameters) + convert_parameters_to_hashes(@parameters, :to_unsafe_h) end alias_method :to_unsafe_hash, :to_unsafe_h @@ -419,7 +420,7 @@ module ActionController # params.fetch(:none) # => ActionController::ParameterMissing: param is missing or the value is empty: none # params.fetch(:none, 'Francesco') # => "Francesco" # params.fetch(:none) { 'Francesco' } # => "Francesco" - def fetch(key, *args, &block) + def fetch(key, *args) convert_value_to_parameters( @parameters.fetch(key) { if block_given? @@ -514,7 +515,7 @@ module ActionController # to key. If the key is not found, returns the default value. If the # optional code block is given and the key is not found, pass in the key # and return the result of block. - def delete(key, &block) + def delete(key) convert_value_to_parameters(@parameters.delete(key)) end @@ -595,16 +596,16 @@ module ActionController end end - def convert_parameters_to_hashes(value) + def convert_parameters_to_hashes(value, using) case value when Array - value.map { |v| convert_parameters_to_hashes(v) } + value.map { |v| convert_parameters_to_hashes(v, using) } when Hash value.transform_values do |v| - convert_parameters_to_hashes(v) + convert_parameters_to_hashes(v, using) end.with_indifferent_access when Parameters - value.to_h + value.send(using) else value end |