class SpamRule::AutoSilence attr_reader :group_message def initialize(user, post = nil) @user = user @post = post end def perform I18n.with_locale(SiteSetting.default_locale) do silence_user if should_autosilence? end end def self.prevent_posting?(user) user.blank? || user.silenced? || new(user).should_autosilence? end def should_autosilence? return false if @user.blank? return false if @user.staged? return false if @user.has_trust_level?(TrustLevel[1]) if SiteSetting.num_spam_flags_to_silence_new_user > 0 && SiteSetting.num_users_to_silence_new_user > 0 && num_spam_flags_against_user >= SiteSetting.num_spam_flags_to_silence_new_user && num_users_who_flagged_spam_against_user >= SiteSetting.num_users_to_silence_new_user return true end if SiteSetting.num_tl3_flags_to_silence_new_user > 0 && SiteSetting.num_tl3_users_to_silence_new_user > 0 && num_tl3_flags_against_user >= SiteSetting.num_tl3_flags_to_silence_new_user && num_tl3_users_who_flagged >= SiteSetting.num_tl3_users_to_silence_new_user return true end false end def num_spam_flags_against_user Post.where(user_id: @user.id).sum(:spam_count) end def num_users_who_flagged_spam_against_user post_ids = Post.where('user_id = ? and spam_count > 0', @user.id).pluck(:id) return 0 if post_ids.empty? PostAction.spam_flags.where(post_id: post_ids).pluck(:user_id).uniq.size end def num_tl3_flags_against_user if flagged_post_ids.empty? 0 else PostAction.where(post_id: flagged_post_ids).joins(:user).where('users.trust_level >= ?', 3).count end end def num_tl3_users_who_flagged if flagged_post_ids.empty? 0 else PostAction.where(post_id: flagged_post_ids).joins(:user).where('users.trust_level >= ?', 3).pluck(:user_id).uniq.size end end def flagged_post_ids Post.where(user_id: @user.id) .where('spam_count > 0 OR off_topic_count > 0 OR inappropriate_count > 0') .pluck(:id) end def silence_user Post.transaction do silencer = UserSilencer.new( @user, Discourse.system_user, message: :too_many_spam_flags, post_id: @post&.id ) if silencer.silence && SiteSetting.notify_mods_when_user_silenced @group_message = GroupMessage.create(Group[:moderators].name, :user_automatically_silenced, user: @user, limit_once_per: false) end end end end