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Code Issues Projects Releases Packages Wiki Activity Actions

Improve language filter (#5724)

Browse source 
* Scrub text of html before detecting language.

* Detect language on statuses coming from activitypub.

* Fix rubocop comments.

* Remove custom emoji from text before language detection
This commit is contained in:
Renato "Lond" Cerqueira 2017-11-16 10:51:38 -02:00 committed by Eugen Rochko
parent 9e3d24a150
commit ad207456d6
2 changed files with 26 additions and 7 deletions
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2
app/lib/activitypub/activity/create.rb
View file

@ -173,7 +173,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
end end
def language_from_content def language_from_content
return nil unless language_map? return LanguageDetector.instance.detect(text_from_content, @account) unless language_map?
@object['contentMap'].keys.first @object['contentMap'].keys.first
end end

31
app/lib/language_detector.rb
View file

@ -38,12 +38,31 @@ class LanguageDetector
end end
def simplify_text(text) def simplify_text(text)
text.dup.tap do |new_text| new_text = remove_html(text)
new_text.gsub!(FetchLinkCardService::URL_PATTERN, '') new_text.gsub!(FetchLinkCardService::URL_PATTERN, '')
new_text.gsub!(Account::MENTION_RE, '') new_text.gsub!(Account::MENTION_RE, '')
new_text.gsub!(Tag::HASHTAG_RE, '') new_text.gsub!(Tag::HASHTAG_RE, '')
new_text.gsub!(/\s+/, ' ') new_text.gsub!(/:#{CustomEmoji::SHORTCODE_RE_FRAGMENT}:/, '')
end new_text.gsub!(/\s+/, ' ')
new_text
end
def new_scrubber
scrubber = Rails::Html::PermitScrubber.new
scrubber.tags = %w(br p)
scrubber
end
def scrubber
@scrubber ||= new_scrubber
end
def remove_html(text)
text = Loofah.fragment(text).scrub!(scrubber).to_s
text.gsub!('<br>', "\n")
text.gsub!('</p><p>', "\n\n")
text.gsub!(/(^<p>|<\/p>$)/, '')
text
end end
def default_locale(account) def default_locale(account)