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- # frozen_string_literal: true
-
- require 'singleton'
-
- class Formatter
- include Singleton
- include RoutingHelper
-
- include ActionView::Helpers::TextHelper
- include ActionView::Helpers::SanitizeHelper
-
- def format(status)
- return reformat(status.content) unless status.local?
-
- html = status.text
- html = encode(html)
-
- if (status.spoiler?)
- spoilerhtml = status.spoiler_text
- spoilerhtml = encode(spoilerhtml)
- html = wrap_spoilers(html, spoilerhtml)
- else
- html = simple_format(html, sanitize: false)
- end
-
- html = html.gsub(/\n/, '')
- html = link_urls(html)
- html = link_mentions(html, status.mentions)
- html = link_hashtags(html)
-
- html.html_safe # rubocop:disable Rails/OutputSafety
- end
-
- def reformat(html)
- sanitize(html, tags: %w(a br p), attributes: %w(href rel))
- end
-
- def simplified_format(account)
- return reformat(account.note) unless account.local?
-
- html = encode(account.note)
- html = link_urls(html)
- html = link_hashtags(html)
-
- html.html_safe # rubocop:disable Rails/OutputSafety
- end
-
- private
-
- def encode(html)
- HTMLEntities.new.encode(html)
- end
-
- def wrap_spoilers(html, spoilerhtml)
- spoilerhtml = simple_format(spoilerhtml, {class: "spoiler-helper"}, {sanitize: false})
- html = simple_format(html, {class: ["spoiler", "spoiler-on"]}, {sanitize: false})
-
- spoilerhtml + html
- end
-
- def link_urls(html)
- html.gsub(URI.regexp(%w(http https))) do |match|
- link_html(match)
- end
- 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 link_hashtags(html)
- html.gsub(Tag::HASHTAG_RE) do |match|
- hashtag_html(match)
- end
- end
-
- def link_html(url)
- link_text = truncate(url.gsub(/\Ahttps?:\/\/(www\.)?/, ''), length: 30)
- "<a rel=\"nofollow noopener\" target=\"_blank\" href=\"#{url}\">#{link_text}</a>"
- end
-
- def hashtag_html(match)
- prefix, affix = match.split('#')
- "#{prefix}<a href=\"#{tag_url(affix.downcase)}\" class=\"mention hashtag\">#<span>#{affix}</span></a>"
- end
-
- def mention_html(match, account)
- "#{match.split('@').first}<a href=\"#{TagManager.instance.url_for(account)}\" class=\"h-card u-url p-nickname mention\">@<span>#{account.username}</span></a>"
- end
- end
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