62 lines
2.2 KiB
Ruby
62 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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module CanonicalURL
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module ControllerExtensions
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ALLOWED_CANONICAL_PARAMS = %w[page]
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def canonical_url(url_for_options = {})
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case url_for_options
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when Hash
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@canonical_url = url_for(url_for_options)
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else
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@canonical_url = url_for_options
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end
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end
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def default_canonical
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@default_canonical ||=
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begin
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canonical = +"#{Discourse.base_url_no_prefix}#{request.path}"
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allowed_params = params.select { |key| ALLOWED_CANONICAL_PARAMS.include?(key) }
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if allowed_params.present?
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canonical << "?#{allowed_params.keys.zip(allowed_params.values).map { |key, value| "#{key}=#{value}" }.join("&")}"
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end
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canonical
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end
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end
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def self.included(base)
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base.helper_method :default_canonical
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end
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end
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module Helpers
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def canonical_link_tag(url = nil)
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tag("link", rel: "canonical", href: url || @canonical_url || default_canonical)
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end
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end
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end
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# https://github.com/mbleigh/canonical-url/blob/master/lib/canonical_url.rb
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# Copyright (c) 2009 Michael Bleigh and Intridea, Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.#
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