discourse/app/jobs/regular/anonymize_user.rb
Sam eb603b246b
PERF: limit anonymization to 1 per cluster (#21992)
Anonymization is among the most expensive operations we can perform with
extreme potential to impact the database. To mitigate risk we only allow a
single anonymization across the entire cluster concurrently.

This commit introduces support for `cluster_concurrency 1`. When you set that on a Job it will only allow 1 concurrent execution per cluster.
2023-06-14 08:30:23 +10:00

70 lines
2.3 KiB
Ruby

# frozen_string_literal: true
module Jobs
class AnonymizeUser < ::Jobs::Base
sidekiq_options queue: "low"
# this is an extremely expensive job
# we are limiting it so only 1 per cluster runs
cluster_concurrency 1
def execute(args)
@user_id = args[:user_id]
@prev_email = args[:prev_email]
@anonymize_ip = args[:anonymize_ip]
make_anonymous
end
def make_anonymous
anonymize_ips(@anonymize_ip) if @anonymize_ip
Invite.where(email: @prev_email).destroy_all
InvitedUser.where(user_id: @user_id).destroy_all
EmailToken.where(user_id: @user_id).destroy_all
EmailLog.where(user_id: @user_id).delete_all
IncomingEmail.where("user_id = ? OR from_address = ?", @user_id, @prev_email).delete_all
Post
.with_deleted
.where(user_id: @user_id)
.where.not(raw_email: nil)
.update_all(raw_email: nil)
anonymize_user_fields
end
def ip_where(column = "user_id")
["#{column} = :user_id AND ip_address IS NOT NULL", user_id: @user_id]
end
def anonymize_ips(new_ip)
IncomingLink.where(ip_where("current_user_id")).update_all(ip_address: new_ip)
ScreenedEmail.where(email: @prev_email).update_all(ip_address: new_ip)
SearchLog.where(ip_where).update_all(ip_address: new_ip)
TopicLinkClick.where(ip_where).update_all(ip_address: new_ip)
TopicViewItem.where(ip_where).update_all(ip_address: new_ip)
UserHistory.where(ip_where("acting_user_id")).update_all(ip_address: new_ip)
UserProfileView.where(ip_where).update_all(ip_address: new_ip)
# UserHistory for delete_user logs the user's IP. Note this is quite ugly but we don't
# have a better way of querying on details right now.
UserHistory.where(
"action = :action AND details LIKE :details",
action: UserHistory.actions[:delete_user],
details: "id: #{@user_id}\n%",
).update_all(ip_address: new_ip)
end
def anonymize_user_fields
user_field_ids = UserField.pluck(:id)
user = User.find(@user_id)
return if user_field_ids.blank? || user.blank?
user_field_ids.each do |field_id|
user.custom_fields.delete("#{User::USER_FIELD_PREFIX}#{field_id}")
end
user.save!
end
end
end