activitypub-academy/app/lib/formatter.rb
2016-09-29 21:28:21 +02:00

47 lines
1.1 KiB
Ruby

require 'singleton'
class Formatter
include Singleton
include ActionView::Helpers::TextHelper
include ActionView::Helpers::SanitizeHelper
def format(status)
return reformat(status) unless status.local?
html = status.text
html = encode(html)
html = simple_format(html, sanitize: false)
html = link_urls(html)
html = link_mentions(html, status.mentions)
html.html_safe
end
def reformat(status)
sanitize(status.content, tags: %w(a br p), attributes: %w(href rel))
end
private
def encode(html)
HTMLEntities.new.encode(html)
end
def link_urls(html)
auto_link(html, link: :urls, html: { rel: 'nofollow noopener' })
end
def link_mentions(html, mentions)
html.gsub(Account::MENTION_RE) do |match|
acct = Account::MENTION_RE.match(match)[1]
mention = mentions.find { |item| item.account.acct.casecmp(acct).zero? }
mention.nil? ? match : mention_html(match, mention.account)
end
end
def mention_html(match, account)
"#{match.split('@').first}<a href=\"#{TagManager.instance.url_for(account)}\" class=\"mention\">@<span>#{account.username}</span></a>"
end
end