# frozen_string_literal: true require 'singleton' require_relative './sanitize_config' class Formatter include Singleton include RoutingHelper include ActionView::Helpers::TextHelper def format(status, **options) if status.reblog? prepend_reblog = status.reblog.account.acct status = status.proper else prepend_reblog = false end raw_content = status.text return '' if raw_content.blank? unless status.local? html = reformat(raw_content) html = encode_custom_emojis(html, status.emojis, options[:autoplay]) if options[:custom_emojify] return html.html_safe # rubocop:disable Rails/OutputSafety end linkable_accounts = status.mentions.map(&:account) linkable_accounts << status.account html = raw_content html = "RT @#{prepend_reblog} #{html}" if prepend_reblog html = encode_and_link_urls(html, linkable_accounts) html = encode_custom_emojis(html, status.emojis, options[:autoplay]) if options[:custom_emojify] html = simple_format(html, {}, sanitize: false) html = html.delete("\n") html.html_safe # rubocop:disable Rails/OutputSafety end def reformat(html) sanitize(html, Sanitize::Config::MASTODON_STRICT) end def plaintext(status) return status.text if status.local? text = status.text.gsub(/(
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|<\/p>)+/) { |match| "#{match}\n" } strip_tags(text) end def simplified_format(account, **options) html = account.local? ? linkify(account.note) : reformat(account.note) html = encode_custom_emojis(html, account.emojis, options[:autoplay]) if options[:custom_emojify] html.html_safe # rubocop:disable Rails/OutputSafety end def sanitize(html, config) Sanitize.fragment(html, config) end def format_spoiler(status) html = encode(status.spoiler_text) html = encode_custom_emojis(html, status.emojis, options[:autoplay]) html.html_safe # rubocop:disable Rails/OutputSafety end def format_display_name(account, **options) html = encode(account.display_name.presence || account.username) html = encode_custom_emojis(html, account.emojis, options[:autoplay]) if options[:custom_emojify] html.html_safe # rubocop:disable Rails/OutputSafety end def format_field(account, str, **options) return reformat(str).html_safe unless account.local? # rubocop:disable Rails/OutputSafety html = encode_and_link_urls(str, me: true) html = encode_custom_emojis(html, account.emojis, options[:autoplay]) if options[:custom_emojify] html.html_safe # rubocop:disable Rails/OutputSafety end def linkify(text) html = encode_and_link_urls(text) html = simple_format(html, {}, sanitize: false) html = html.delete("\n") html.html_safe # rubocop:disable Rails/OutputSafety end private def encode(html) HTMLEntities.new.encode(html) end def encode_and_link_urls(html, accounts = nil, options = {}) entities = Extractor.extract_entities_with_indices(html, extract_url_without_protocol: false) if accounts.is_a?(Hash) options = accounts accounts = nil end rewrite(html.dup, entities) do |entity| if entity[:url] link_to_url(entity, options) elsif entity[:hashtag] link_to_hashtag(entity) elsif entity[:screen_name] link_to_mention(entity, accounts) end end end def count_tag_nesting(tag) if tag[1] == '/' then -1 elsif tag[-2] == '/' then 0 else 1 end end def encode_custom_emojis(html, emojis, animate = false) return html if emojis.empty? emoji_map = if animate emojis.map { |e| [e.shortcode, full_asset_url(e.image.url)] }.to_h else emojis.map { |e| [e.shortcode, full_asset_url(e.image.url(:static))] }.to_h end i = -1 tag_open_index = nil inside_shortname = false shortname_start_index = -1 invisible_depth = 0 while i + 1 < html.size i += 1 if invisible_depth.zero? && inside_shortname && html[i] == ':' shortcode = html[shortname_start_index + 1..i - 1] emoji = emoji_map[shortcode] if emoji replacement = "\":#{shortcode}:\"" before_html = shortname_start_index.positive? ? html[0..shortname_start_index - 1] : '' html = before_html + replacement + html[i + 1..-1] i += replacement.size - (shortcode.size + 2) - 1 else i -= 1 end inside_shortname = false elsif tag_open_index && html[i] == '>' tag = html[tag_open_index..i] tag_open_index = nil if invisible_depth.positive? invisible_depth += count_tag_nesting(tag) elsif tag == '