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authorDavid Heinemeier Hansson <david@loudthinking.com>2016-08-02 12:28:56 -0700
committerGitHub <noreply@github.com>2016-08-02 12:28:56 -0700
commit2762ebd84629ccc39a9959ecf15c9f82c1d283b3 (patch)
tree30703ec9361dd96053fd0db65fa2796d828f493c /actionpack
parent111227c0dfb72b060428063e35d865b62338654a (diff)
parent31c1ed95d33bd9a46a6a4ebb5c1e1fa2af171969 (diff)
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Merge branch 'master' into retry-and-discard-jobs
Diffstat (limited to 'actionpack')
-rw-r--r--actionpack/lib/action_controller/metal/strong_parameters.rb28
-rw-r--r--actionpack/test/controller/parameters/serialization_test.rb55
2 files changed, 83 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb
index 26794c67b7..f101c7b836 100644
--- a/actionpack/lib/action_controller/metal/strong_parameters.rb
+++ b/actionpack/lib/action_controller/metal/strong_parameters.rb
@@ -7,6 +7,7 @@ require 'action_dispatch/http/upload'
require 'rack/test'
require 'stringio'
require 'set'
+require 'yaml'
module ActionController
# Raised when a required parameter is missing.
@@ -591,6 +592,33 @@ module ActionController
"<#{self.class} #{@parameters} permitted: #{@permitted}>"
end
+ def self.hook_into_yaml_loading # :nodoc:
+ # Wire up YAML format compatibility with Rails 4.2 and Psych 2.0.8 and 2.0.9+.
+ # Makes the YAML parser call `init_with` when it encounters the keys below
+ # instead of trying its own parsing routines.
+ YAML.load_tags['!ruby/hash-with-ivars:ActionController::Parameters'] = name
+ YAML.load_tags['!ruby/hash:ActionController::Parameters'] = name
+ end
+ hook_into_yaml_loading
+
+ def init_with(coder) # :nodoc:
+ case coder.tag
+ when '!ruby/hash:ActionController::Parameters'
+ # YAML 2.0.8's format where hash instance variables weren't stored.
+ @parameters = coder.map.with_indifferent_access
+ @permitted = false
+ when '!ruby/hash-with-ivars:ActionController::Parameters'
+ # YAML 2.0.9's Hash subclass format where keys and values
+ # were stored under an elements hash and `permitted` within an ivars hash.
+ @parameters = coder.map['elements'].with_indifferent_access
+ @permitted = coder.map['ivars'][:@permitted]
+ when '!ruby/object:ActionController::Parameters'
+ # YAML's Object format. Only needed because of the format
+ # backwardscompability above, otherwise equivalent to YAML's initialization.
+ @parameters, @permitted = coder.map['parameters'], coder.map['permitted']
+ end
+ end
+
def method_missing(method_sym, *args, &block)
if @parameters.respond_to?(method_sym)
message = <<-DEPRECATE.squish
diff --git a/actionpack/test/controller/parameters/serialization_test.rb b/actionpack/test/controller/parameters/serialization_test.rb
new file mode 100644
index 0000000000..c9d38c1f48
--- /dev/null
+++ b/actionpack/test/controller/parameters/serialization_test.rb
@@ -0,0 +1,55 @@
+require 'abstract_unit'
+require 'action_controller/metal/strong_parameters'
+require 'active_support/core_ext/string/strip'
+
+class ParametersSerializationTest < ActiveSupport::TestCase
+ setup do
+ @old_permitted_parameters = ActionController::Parameters.permit_all_parameters
+ ActionController::Parameters.permit_all_parameters = false
+ end
+
+ teardown do
+ ActionController::Parameters.permit_all_parameters = @old_permitted_parameters
+ end
+
+ test 'yaml serialization' do
+ params = ActionController::Parameters.new(key: :value)
+ assert_equal <<-end_of_yaml.strip_heredoc, YAML.dump(params)
+ --- !ruby/object:ActionController::Parameters
+ parameters: !ruby/hash:ActiveSupport::HashWithIndifferentAccess
+ key: :value
+ permitted: false
+ end_of_yaml
+ end
+
+ test 'yaml deserialization' do
+ params = ActionController::Parameters.new(key: :value)
+ roundtripped = YAML.load(YAML.dump(params))
+
+ assert_equal params, roundtripped
+ assert_not roundtripped.permitted?
+ end
+
+ test 'yaml backwardscompatible with psych 2.0.8 format' do
+ params = YAML.load <<-end_of_yaml.strip_heredoc
+ --- !ruby/hash:ActionController::Parameters
+ key: :value
+ end_of_yaml
+
+ assert_equal :value, params[:key]
+ assert_not params.permitted?
+ end
+
+ test 'yaml backwardscompatible with psych 2.0.9+ format' do
+ params = YAML.load(<<-end_of_yaml.strip_heredoc)
+ --- !ruby/hash-with-ivars:ActionController::Parameters
+ elements:
+ key: :value
+ ivars:
+ :@permitted: false
+ end_of_yaml
+
+ assert_equal :value, params[:key]
+ assert_not params.permitted?
+ end
+end