mirror of
https://git.bsd.gay/fef/nyastodon.git
synced 2024-12-28 06:33:42 +01:00
ea436b355b
* Fix wrong grouping in Twitter valid_url regex * Add support for xmpp URIs Fixes #9776 The difficult part is autolinking, because Twitter-text's extractor does some pretty ad-hoc stuff to find things that “look like” URLs, and XMPP URIs do not really match the assumptions of that lib, so it doesn't sound wise to try to shoehorn it into the existing regex. This is why I used a specific regex (very close, although slightly more permissive than the RFC), and a specific scan function (a simplified version of the generalized one from Twitter). * Remove leading “xmpp:” from auto-linked text
303 lines
9.3 KiB
Ruby
303 lines
9.3 KiB
Ruby
# 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
|
|
|
|
if options[:inline_poll_options] && status.preloadable_poll
|
|
raw_content = raw_content + "\n\n" + status.preloadable_poll.options.map { |title| "[ ] #{title}" }.join("\n")
|
|
end
|
|
|
|
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.active_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(/(<br \/>|<br>|<\/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, **options)
|
|
html = encode(status.spoiler_text)
|
|
html = encode_custom_emojis(html, status.emojis, options[:autoplay])
|
|
html.html_safe # rubocop:disable Rails/OutputSafety
|
|
end
|
|
|
|
def format_poll_option(status, option, **options)
|
|
html = encode(option.title)
|
|
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)
|
|
html = account.local? ? encode_and_link_urls(str, me: true) : reformat(str)
|
|
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 html_entities
|
|
@html_entities ||= HTMLEntities.new
|
|
end
|
|
|
|
def encode(html)
|
|
html_entities.encode(html)
|
|
end
|
|
|
|
def encode_and_link_urls(html, accounts = nil, options = {})
|
|
entities = utf8_friendly_extractor(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 = emojis.each_with_object({}) { |e, h| h[e.shortcode] = [full_asset_url(e.image.url), full_asset_url(e.image.url(:static))] }
|
|
|
|
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
|
|
original_url, static_url = emoji
|
|
replacement = begin
|
|
if animate
|
|
"<img draggable=\"false\" class=\"emojione\" alt=\":#{encode(shortcode)}:\" title=\":#{encode(shortcode)}:\" src=\"#{encode(original_url)}\" />"
|
|
else
|
|
"<img draggable=\"false\" class=\"emojione custom-emoji\" alt=\":#{encode(shortcode)}:\" title=\":#{encode(shortcode)}:\" src=\"#{encode(static_url)}\" data-original=\"#{original_url}\" data-static=\"#{static_url}\" />"
|
|
end
|
|
end
|
|
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 == '<span class="invisible">'
|
|
invisible_depth = 1
|
|
end
|
|
elsif html[i] == '<'
|
|
tag_open_index = i
|
|
inside_shortname = false
|
|
elsif !tag_open_index && html[i] == ':'
|
|
inside_shortname = true
|
|
shortname_start_index = i
|
|
end
|
|
end
|
|
|
|
html
|
|
end
|
|
|
|
def rewrite(text, entities)
|
|
text = text.to_s
|
|
|
|
# Sort by start index
|
|
entities = entities.sort_by do |entity|
|
|
indices = entity.respond_to?(:indices) ? entity.indices : entity[:indices]
|
|
indices.first
|
|
end
|
|
|
|
result = []
|
|
|
|
last_index = entities.reduce(0) do |index, entity|
|
|
indices = entity.respond_to?(:indices) ? entity.indices : entity[:indices]
|
|
result << encode(text[index...indices.first])
|
|
result << yield(entity)
|
|
indices.last
|
|
end
|
|
|
|
result << encode(text[last_index..-1])
|
|
|
|
result.flatten.join
|
|
end
|
|
|
|
UNICODE_ESCAPE_BLACKLIST_RE = /\p{Z}|\p{P}/
|
|
|
|
def utf8_friendly_extractor(text, options = {})
|
|
old_to_new_index = [0]
|
|
|
|
escaped = text.chars.map do |c|
|
|
output = begin
|
|
if c.ord.to_s(16).length > 2 && UNICODE_ESCAPE_BLACKLIST_RE.match(c).nil?
|
|
CGI.escape(c)
|
|
else
|
|
c
|
|
end
|
|
end
|
|
|
|
old_to_new_index << old_to_new_index.last + output.length
|
|
|
|
output
|
|
end.join
|
|
|
|
# Note: I couldn't obtain list_slug with @user/list-name format
|
|
# for mention so this requires additional check
|
|
special = Extractor.extract_urls_with_indices(escaped, options).map do |extract|
|
|
new_indices = [
|
|
old_to_new_index.find_index(extract[:indices].first),
|
|
old_to_new_index.find_index(extract[:indices].last),
|
|
]
|
|
|
|
next extract.merge(
|
|
indices: new_indices,
|
|
url: text[new_indices.first..new_indices.last - 1]
|
|
)
|
|
end
|
|
|
|
standard = Extractor.extract_entities_with_indices(text, options)
|
|
xmpp = Extractor.extract_xmpp_uris_with_indices(text, options)
|
|
|
|
Extractor.remove_overlapping_entities(special + standard + xmpp)
|
|
end
|
|
|
|
def link_to_url(entity, options = {})
|
|
url = Addressable::URI.parse(entity[:url])
|
|
html_attrs = { target: '_blank', rel: 'nofollow noopener noreferrer' }
|
|
|
|
html_attrs[:rel] = "me #{html_attrs[:rel]}" if options[:me]
|
|
|
|
Twitter::Autolink.send(:link_to_text, entity, link_html(entity[:url]), url, html_attrs)
|
|
rescue Addressable::URI::InvalidURIError, IDN::Idna::IdnaError
|
|
encode(entity[:url])
|
|
end
|
|
|
|
def link_to_mention(entity, linkable_accounts)
|
|
acct = entity[:screen_name]
|
|
|
|
return link_to_account(acct) unless linkable_accounts
|
|
|
|
account = linkable_accounts.find { |item| TagManager.instance.same_acct?(item.acct, acct) }
|
|
account ? mention_html(account) : "@#{encode(acct)}"
|
|
end
|
|
|
|
def link_to_account(acct)
|
|
username, domain = acct.split('@')
|
|
|
|
domain = nil if TagManager.instance.local_domain?(domain)
|
|
account = EntityCache.instance.mention(username, domain)
|
|
|
|
account ? mention_html(account) : "@#{encode(acct)}"
|
|
end
|
|
|
|
def link_to_hashtag(entity)
|
|
hashtag_html(entity[:hashtag])
|
|
end
|
|
|
|
def link_html(url)
|
|
url = Addressable::URI.parse(url).to_s
|
|
prefix = url.match(/\A(https?:\/\/(www\.)?|xmpp:)/).to_s
|
|
text = url[prefix.length, 30]
|
|
suffix = url[prefix.length + 30..-1]
|
|
cutoff = url[prefix.length..-1].length > 30
|
|
|
|
"<span class=\"invisible\">#{encode(prefix)}</span><span class=\"#{cutoff ? 'ellipsis' : ''}\">#{encode(text)}</span><span class=\"invisible\">#{encode(suffix)}</span>"
|
|
end
|
|
|
|
def hashtag_html(tag)
|
|
"<a href=\"#{encode(tag_url(tag))}\" class=\"mention hashtag\" rel=\"tag\">#<span>#{encode(tag)}</span></a>"
|
|
end
|
|
|
|
def mention_html(account)
|
|
"<span class=\"h-card\"><a href=\"#{encode(ActivityPub::TagManager.instance.url_for(account))}\" class=\"u-url mention\">@<span>#{encode(account.username)}</span></a></span>"
|
|
end
|
|
end
|