38 lines
1.1 KiB
Ruby
38 lines
1.1 KiB
Ruby
class SitemapsController < ApplicationController
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before_action :set_cache_control_headers, only: %i[show]
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SITEMAP_REGEX = /\Asitemap-(?<date_string>[A-Z][a-z][a-z]-\d{4})\.xml\z/.freeze
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def show
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match = params[:sitemap].match(SITEMAP_REGEX)
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not_found unless match && match[:date_string]
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begin
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date = Time.zone.parse(match[:date_string]).at_beginning_of_month
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rescue ArgumentError
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not_found
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end
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@articles = Article.published
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.where("published_at > ? AND published_at < ? AND score > ?", date, date.end_of_month, 3)
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.pluck(:path, :last_comment_at)
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set_surrogate_controls(date)
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set_cache_control_headers(@max_age,
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stale_while_revalidate: @stale_while_revalidate,
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stale_if_error: @stale_if_error)
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render layout: false
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end
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private
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def set_surrogate_controls(date)
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@stale_if_error = "86400"
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if date > 1.month.ago
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@max_age = "8640" # one hour
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@stale_while_revalidate = "43200" # half a day
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else
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@max_age = "259200" # three days
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@stale_while_revalidate = "432000" # five days
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end
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end
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end
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