132 lines
3.1 KiB
Ruby
132 lines
3.1 KiB
Ruby
require_dependency 'oneboxer'
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class PostAnalyzer
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def initialize(raw, topic_id)
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@raw = raw
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@topic_id = topic_id
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@found_oneboxes = false
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end
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def found_oneboxes?
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@found_oneboxes
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end
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# What we use to cook posts
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def cook(*args)
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cooked = PrettyText.cook(*args)
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result = Oneboxer.apply(cooked, topic_id: @topic_id) do |url, _|
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@found_oneboxes = true
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Oneboxer.invalidate(url) if args.last[:invalidate_oneboxes]
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Oneboxer.cached_onebox(url)
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end
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cooked = result.to_html if result.changed?
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cooked
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end
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# How many images are present in the post
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def image_count
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return 0 unless @raw.present?
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cooked_stripped.css("img").reject do |t|
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if dom_class = t["class"]
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(Post.white_listed_image_classes & dom_class.split).count > 0
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end
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end.count
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end
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# How many attachments are present in the post
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def attachment_count
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return 0 unless @raw.present?
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attachments = cooked_stripped.css("a.attachment[href^=\"#{Discourse.store.absolute_base_url}\"]")
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attachments += cooked_stripped.css("a.attachment[href^=\"#{Discourse.store.relative_base_url}\"]") if Discourse.store.internal?
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attachments.count
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end
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def raw_mentions
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return [] if @raw.blank?
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return @raw_mentions if @raw_mentions.present?
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raw_mentions = cooked_stripped.css('.mention, .mention-group').map do |e|
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if name = e.inner_text
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name = name[1..-1]
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name.downcase! if name
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name
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end
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end
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raw_mentions.compact!
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raw_mentions.uniq!
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@raw_mention = raw_mentions
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end
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# from rack ... compat with ruby 2.2
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def self.parse_uri_rfc2396(uri)
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@parser ||= defined?(URI::RFC2396_Parser) ? URI::RFC2396_Parser.new : URI
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@parser.parse(uri)
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end
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# Count how many hosts are linked in the post
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def linked_hosts
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return {} if raw_links.blank?
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return @linked_hosts if @linked_hosts.present?
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@linked_hosts = {}
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raw_links.each do |u|
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begin
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uri = self.class.parse_uri_rfc2396(u)
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host = uri.host
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@linked_hosts[host] ||= 1 unless host.nil?
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rescue URI::InvalidURIError
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# An invalid URI does not count as a raw link.
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next
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end
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end
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@linked_hosts
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end
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# Returns an array of all links in a post excluding mentions
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def raw_links
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return [] unless @raw.present?
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return @raw_links if @raw_links.present?
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@raw_links = []
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cooked_stripped.css("a[href]").each do |l|
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# Don't include @mentions in the link count
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next if l['href'].blank? || link_is_a_mention?(l)
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@raw_links << l['href'].to_s
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end
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@raw_links
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end
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# How many links are present in the post
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def link_count
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raw_links.size
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end
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private
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def cooked_stripped
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@cooked_stripped ||= begin
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doc = Nokogiri::HTML.fragment(cook(@raw, topic_id: @topic_id))
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doc.css("pre, code, aside.quote, .onebox, .elided").remove
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doc
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end
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end
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def link_is_a_mention?(l)
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html_class = l['class']
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return false if html_class.blank?
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href = l['href'].to_s
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html_class.to_s['mention'] && href[/^\/u\//] || href[/^\/users\//]
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end
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end
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