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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Rails
# This cop checks for consistent uses of `request.referer` or
# `request.referrer`, depending on the cop's configuration.
#
# @example EnforcedStyle: referer (default)
# # bad
# request.referrer
#
# # good
# request.referer
#
# @example EnforcedStyle: referrer
# # bad
# request.referer
#
# # good
# request.referrer
class RequestReferer < Cop
include ConfigurableEnforcedStyle
MSG = 'Use `request.%<prefer>s` instead of ' \
'`request.%<current>s`.'.freeze
def_node_matcher :referer?, <<-PATTERN
(send (send nil? :request) {:referer :referrer})
PATTERN
def on_send(node)
referer?(node) do
return unless node.method?(wrong_method_name)
add_offense(node.source_range, location: node.source_range)
end
end
def autocorrect(node)
->(corrector) { corrector.replace(node, "request.#{style}") }
end
private
def message(_node)
format(MSG, prefer: style, current: wrong_method_name)
end
def wrong_method_name
style == :referer ? :referrer : :referer
end
end
end
end
end
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