Class: NewsmastMastodon::BanStatusService

Inherits:
Object
  • Object
show all
Includes:
DatabaseHelper, Redisable
Defined in:
app/services/newsmast_mastodon/ban_status_service.rb

Instance Method Summary collapse

Instance Method Details

#check_and_ban_status(status) ⇒ Object 



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# File 'app/services/newsmast_mastodon/ban_status_service.rb', line 10

def check_and_ban_status(status)
  setting_filter_types = ['Content filters', 'Spam filters']

  @status = status

  with_read_replica do
    setting_filter_types.each do |setting_filter_type|
      # The keys wil generated as below
      # 1.) content_filters_banned_status_ids
      # 2.) span_filters_banned_status_ids
      redis_key = "#{setting_filter_type.downcase.gsub(/\s+/, '_')}_banned_status_ids"
      server_setting = NewsmastMastodon::ServerSetting.find_by(name: setting_filter_type)
      next unless server_setting&.value

      filters = fetch_filters_from_all_keys(server_setting.name)
      active_filters = filters.map { |f| JSON.parse(f) }.select { |f| f['is_active'] }
      active_filters.each do |f|
        keyword = f['keyword']
        filter_type = f['filter_type'].downcase

        # Check if the keyword matches in the account object
        # This will ban the account if the keyword is found in username, display_name, or note
        # This is done before checking hashtags or content to ensure account banning is prioritized
        (keyword)

        if filter_type == 'hashtag' || filter_type == 'both'
          tag_ids = @status.tags.where(name: keyword.downcase.gsub('#', '')).ids
          if tag_ids.present?
            # If the tag is banned, update its is_banned attribute to true
            # to trigger update_tags callback for elastic search
            with_primary do
              Tag.where(id: tag_ids).find_each do |tag|
                tag.update(listable: false, trendable: false)
              end
            end
            redis.zadd(redis_key, @status.id, @status.id)
          end
        end

        if filter_type == 'both' || filter_type == 'content'
          include_keyword = @status.search_word_in_status(keyword)
          if include_keyword
            redis.zadd(redis_key, @status.id, @status.id)
          end
        end
      end
    end
  end

  # Combine banned status_ids both content & spam filters
  # And also remove if the records exceeded 400 limit
  return combine_banned_status_ids(@status.id)
end

#global_keyword_matches_in_status?(status_id, community_id, filter_type) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/newsmast_mastodon/ban_status_service.rb', line 82

def global_keyword_matches_in_status?(status_id, community_id, filter_type)
  @status = Status.find(status_id)

  cache_key = "global_filter_keywords_#{filter_type}"
  global_filter_keywords = Rails.cache.fetch(cache_key, expires_in: 24.hours) do
    NewsmastMastodon::CommunityFilterKeyword.where(patchwork_community_id: nil, filter_type: filter_type).to_a
  end

  return false if filter_type == 'filter_out' && global_filter_keywords.empty?

  return true if filter_type == 'filter_in' && global_filter_keywords.empty?

  global_filter_keywords.any? do |keyword|
    if keyword.is_filter_hashtag
      search_term = keyword.keyword.downcase.strip
      @status.tags.where("LOWER(name) = ?", search_term).present?
    else
      @status.search_word_in_status(keyword.keyword)
    end
  end
end

#keyword_matches_in_status?(status_id, community_id, filter_type) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/newsmast_mastodon/ban_status_service.rb', line 64

def keyword_matches_in_status?(status_id, community_id, filter_type)
  @status = Status.find(status_id)
  filter_keywords = NewsmastMastodon::CommunityFilterKeyword.where(patchwork_community_id: community_id, filter_type: filter_type)

  return false if filter_type == 'filter_out' && filter_keywords.empty?

  return true if filter_type == 'filter_in' && filter_keywords.empty?

  filter_keywords.any? do |keyword|
    if keyword.is_filter_hashtag
      search_term = keyword.keyword.downcase.strip
      @status.tags.where("LOWER(name) = ?", search_term).present?
    else
      @status.search_word_in_status(keyword.keyword)
    end
  end
end