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# frozen_string_literal: true
require "active_support/core_ext/hash/indifferent_access"
module ActionDispatch
class Request
class Utils # :nodoc:
mattr_accessor :perform_deep_munge, default: true
def self.each_param_value(params, &block)
case params
when Array
params.each { |element| each_param_value(element, &block) }
when Hash
params.each_value { |value| each_param_value(value, &block) }
when String
block.call params
end
end
def self.normalize_encode_params(params)
if perform_deep_munge
NoNilParamEncoder.normalize_encode_params params
else
ParamEncoder.normalize_encode_params params
end
end
def self.check_param_encoding(params)
case params
when Array
params.each { |element| check_param_encoding(element) }
when Hash
params.each_value { |value| check_param_encoding(value) }
when String
unless params.valid_encoding?
# Raise Rack::Utils::InvalidParameterError for consistency with Rack.
# ActionDispatch::Request#GET will re-raise as a BadRequest error.
raise Rack::Utils::InvalidParameterError, "Invalid encoding for parameter: #{params.scrub}"
end
end
end
class ParamEncoder # :nodoc:
# Convert nested Hash to HashWithIndifferentAccess.
def self.normalize_encode_params(params)
case params
when Array
handle_array params
when Hash
if params.has_key?(:tempfile)
ActionDispatch::Http::UploadedFile.new(params)
else
params.each_with_object({}) do |(key, val), new_hash|
new_hash[key] = normalize_encode_params(val)
end.with_indifferent_access
end
else
params
end
end
def self.handle_array(params)
params.map! { |el| normalize_encode_params(el) }
end
end
# Remove nils from the params hash.
class NoNilParamEncoder < ParamEncoder # :nodoc:
def self.handle_array(params)
list = super
list.compact!
list
end
end
end
end
end
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