discourse/app/services/spam_rule/auto_silence.rb

77 lines
2.0 KiB
Ruby

# frozen_string_literal: true
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])
SiteSetting.num_users_to_silence_new_user > 0 &&
user_spam_stats.total_spam_score >= Reviewable.spam_score_to_silence_new_user &&
user_spam_stats.spam_user_count >= SiteSetting.num_users_to_silence_new_user
end
def user_spam_stats
return @user_spam_stats if @user_spam_stats
params = {
user_id: @user.id,
spam_type: PostActionType.types[:spam],
pending: ReviewableScore.statuses[:pending],
agreed: ReviewableScore.statuses[:agreed]
}
result = DB.query(<<~SQL, params)
SELECT COALESCE(SUM(rs.score), 0) AS total_spam_score,
COUNT(DISTINCT rs.user_id) AS spam_user_count
FROM reviewables AS r
INNER JOIN reviewable_scores AS rs ON rs.reviewable_id = r.id
WHERE r.target_created_by_id = :user_id
AND rs.reviewable_score_type = :spam_type
AND rs.status IN (:pending, :agreed)
SQL
@user_spam_stats = result[0]
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