discourse/lib/post_analyser.rb

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module PostAnalyser
def raw_mentions
return [] if raw.blank?
# We don't count mentions in quotes
return @raw_mentions if @raw_mentions.present?
raw_stripped = raw.gsub(/\[quote=(.*)\]([^\[]*?)\[\/quote\]/im, '')
# Strip pre and code tags
doc = Nokogiri::HTML.fragment(raw_stripped)
doc.search("pre").remove
doc.search("code").remove
results = doc.to_html.scan(PrettyText.mention_matcher)
@raw_mentions = results.uniq.map { |un| un.first.downcase.gsub!(/^@/, '') }
end
# Count how many hosts are linked in the post
def linked_hosts
return {} if raw_links.blank?
return @linked_hosts if @linked_hosts.present?
@linked_hosts = {}
raw_links.each do |u|
uri = URI.parse(u)
host = uri.host
@linked_hosts[host] ||= 1
end
@linked_hosts
end
# Returns an array of all links in a post excluding mentions
def raw_links
return [] unless raw.present?
return @raw_links if @raw_links.present?
# Don't include @mentions in the link count
@raw_links = []
cooked_document.search("a[href]").each do |l|
next if link_is_a_mention?(l)
url = l.attributes['href'].to_s
@raw_links << url
end
@raw_links
end
# How many links are present in the post
def link_count
raw_links.size
end
private
def link_is_a_mention?(l)
html_class = l.attributes['class']
return false if html_class.nil?
html_class.to_s == 'mention' && l.attributes['href'].to_s =~ /^\/users\//
end
end