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# frozen_string_literal: true
module Grape
module Validations
module Types
# Implementation for parameters that are multipart file objects.
# Actual handling of these objects is provided by +Rack::Request+;
# this class is here only to assert that rack's handling has succeeded.
class File
class << self
def parse(input)
return if input.nil?
return InvalidValue.new unless parsed?(input)
# Processing of multipart file objects
# is already taken care of by Rack::Request.
# Nothing to do here.
input
end
def parsed?(value)
# Rack::Request creates a Hash with filename,
# content type and an IO object. Do a bit of basic
# duck-typing.
value.is_a?(::Hash) && value.key?(:tempfile) && value[:tempfile].is_a?(Tempfile)
end
end
end
end
end
end
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