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Versions: 8
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Contents
class Roda
module RodaPlugins
# The head plugin attempts to automatically handle HEAD requests,
# by treating them as GET requests and returning an empty body
# without modifying the response status or response headers.
#
# So for the following routes,
#
# route do |r|
# r.root do
# 'root'
# end
#
# r.get 'a' do
# 'a'
# end
#
# r.is 'b', :method=>[:get, :post] do
# 'b'
# end
# end
#
# HEAD requests for +/+, +/a+, and +/b+ will all return 200 status
# with an empty body.
#
# NOTE: if you have a public facing website it is recommended that
# you enable this plugin. Search engines and other bots may send a
# HEAD request prior to crawling a page with a GET request. Without
# this plugin those HEAD requests will return a 404 status, which
# may prevent search engine's from crawling your website.
module Head
EMPTY_ARRAY = [].freeze
module InstanceMethods
# Always use an empty response body for head requests, with a
# content length of 0.
def call(*)
res = super
if @_request.head?
res[2] = EMPTY_ARRAY
end
res
end
end
module RequestMethods
# Consider HEAD requests as GET requests.
def is_get?
super || head?
end
private
# If the current request is a HEAD request, match if one of
# the given methods is a GET request.
def match_method(method)
super || (!method.is_a?(Array) && head? && method.to_s.upcase == 'GET')
end
end
end
register_plugin(:head, Head)
end
end
Version data entries
8 entries across 8 versions & 1 rubygems