class SpamRule::AutoBlock def initialize(user) @user = user end def self.block?(user) self.new(user).block? end def self.punish!(user) self.new(user).block_user end def perform block_user if block? end def block? return true if @user.blocked? return false if @user.staged? return false if @user.has_trust_level?(TrustLevel[1]) if SiteSetting.num_spam_flags_to_block_new_user > (0) && SiteSetting.num_users_to_block_new_user > (0) && num_spam_flags_against_user >= (SiteSetting.num_spam_flags_to_block_new_user) && num_users_who_flagged_spam_against_user >= (SiteSetting.num_users_to_block_new_user) return true end if SiteSetting.num_tl3_flags_to_block_new_user > (0) && SiteSetting.num_tl3_users_to_block_new_user > (0) && num_tl3_flags_against_user >= (SiteSetting.num_tl3_flags_to_block_new_user) && num_tl3_users_who_flagged >= (SiteSetting.num_tl3_users_to_block_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).uniq.pluck(:user_id).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 > ? OR off_topic_count > ? OR inappropriate_count > ?', 0, 0, 0) .pluck(:id) end def block_user Post.transaction do if UserBlocker.block(@user, Discourse.system_user, message: :too_many_spam_flags) && SiteSetting.notify_mods_when_user_blocked GroupMessage.create(Group[:moderators].name, :user_automatically_blocked, user: @user, limit_once_per: false) end end end end