2019-05-03 06:17:27 +08:00
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# frozen_string_literal: true
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2014-11-22 01:16:06 +08:00
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require_dependency 'ip_addr'
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2013-04-12 04:04:20 +08:00
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# Responsible for destroying a User record
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class UserDestroyer
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class PostsExistError < RuntimeError; end
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2014-02-14 00:42:35 +08:00
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def initialize(actor)
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@actor = actor
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2017-07-28 09:20:09 +08:00
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raise Discourse::InvalidParameters.new('acting user is nil') unless @actor && @actor.is_a?(User)
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2014-02-14 00:42:35 +08:00
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@guardian = Guardian.new(actor)
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2013-04-12 04:04:20 +08:00
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end
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# Returns false if the user failed to be deleted.
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# Returns a frozen instance of the User if the delete succeeded.
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2017-07-28 09:20:09 +08:00
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def destroy(user, opts = {})
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raise Discourse::InvalidParameters.new('user is nil') unless user && user.is_a?(User)
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2014-08-19 00:07:21 +08:00
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raise PostsExistError if !opts[:delete_posts] && user.posts.count != 0
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2017-03-18 05:01:45 +08:00
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@guardian.ensure_can_delete_user!(user)
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2014-10-20 22:59:06 +08:00
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2019-01-17 04:54:21 +08:00
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# default to using a transaction
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opts[:transaction] = true if opts[:transaction] != false
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2019-01-18 23:04:29 +08:00
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prepare_for_destroy(user) if opts[:prepare_for_destroy] == true
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2019-04-10 23:00:14 +08:00
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result = nil
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2019-01-17 04:54:21 +08:00
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optional_transaction(open_transaction: opts[:transaction]) do
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2015-04-25 04:04:44 +08:00
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2015-08-24 14:05:08 +08:00
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Draft.where(user_id: user.id).delete_all
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2019-01-04 01:03:01 +08:00
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Reviewable.where(created_by_id: user.id).delete_all
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2015-04-25 04:04:44 +08:00
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2013-07-25 01:48:55 +08:00
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if opts[:delete_posts]
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user.posts.each do |post|
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2019-01-04 01:03:01 +08:00
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2014-10-20 22:59:06 +08:00
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# agree with flags
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2019-01-04 01:03:01 +08:00
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if opts[:delete_as_spammer] && reviewable = post.reviewable_flag
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reviewable.perform(@actor, :agree_and_keep)
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end
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2014-10-20 22:59:06 +08:00
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# block all external urls
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2013-08-14 23:05:53 +08:00
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if opts[:block_urls]
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post.topic_links.each do |link|
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2017-07-25 23:44:46 +08:00
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next if link.internal
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next if Oneboxer.engine(link.url) != Onebox::Engine::WhitelistedGenericOnebox
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ScreenedUrl.watch(link.url, link.domain, ip_address: user.ip_address)&.record_match!
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2013-08-14 23:05:53 +08:00
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end
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end
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2014-10-20 22:59:06 +08:00
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2014-02-14 04:51:19 +08:00
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PostDestroyer.new(@actor.staff? ? @actor : Discourse.system_user, post).destroy
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2014-10-20 22:59:06 +08:00
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2017-01-06 10:01:14 +08:00
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if post.topic && post.is_first_post?
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2017-07-25 23:44:46 +08:00
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Topic.unscoped.where(id: post.topic_id).update_all(user_id: nil)
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2013-09-05 03:35:10 +08:00
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end
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2013-07-25 01:48:55 +08:00
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end
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end
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2014-10-20 22:59:06 +08:00
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2014-04-01 02:06:25 +08:00
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user.post_actions.each do |post_action|
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post_action.remove_act!(Discourse.system_user)
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end
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2014-10-20 22:59:06 +08:00
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2018-10-03 01:46:43 +08:00
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# Add info about the user to staff action logs
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UserHistory.staff_action_records(
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Discourse.system_user, acting_user: user.username
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).each do |log|
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log.details ||= ''
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log.details = (log.details.split("\n") +
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["user_id: #{user.id}", "username: #{user.username}"]
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).join("\n")
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log.save!
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end
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2017-07-25 23:44:46 +08:00
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# keep track of emails used
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user_emails = user.user_emails.pluck(:email)
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2019-04-10 23:00:14 +08:00
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if result = user.destroy
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if opts[:block_email]
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user_emails.each do |email|
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ScreenedEmail.block(email, ip_address: result.ip_address)&.record_match!
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2013-07-26 03:30:03 +08:00
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end
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2019-04-10 23:00:14 +08:00
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end
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2014-11-22 01:16:06 +08:00
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2019-04-10 23:00:14 +08:00
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if opts[:block_ip] && result.ip_address
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ScreenedIpAddress.watch(result.ip_address)&.record_match!
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if result.registration_ip_address && result.ip_address != result.registration_ip_address
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ScreenedIpAddress.watch(result.registration_ip_address)&.record_match!
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2013-10-22 02:49:51 +08:00
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end
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2019-04-10 23:00:14 +08:00
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end
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2014-11-22 01:16:06 +08:00
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2019-04-10 23:00:14 +08:00
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Post.unscoped.where(user_id: result.id).update_all(user_id: nil)
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2013-11-02 04:55:56 +08:00
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2019-04-10 23:00:14 +08:00
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# If this user created categories, fix those up:
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Category.where(user_id: result.id).each do |c|
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c.user_id = Discourse::SYSTEM_USER_ID
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c.save!
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if topic = Topic.unscoped.find_by(id: c.topic_id)
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topic.recover!
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topic.user_id = Discourse::SYSTEM_USER_ID
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topic.save!
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2013-11-02 04:55:56 +08:00
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end
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2019-04-10 23:00:14 +08:00
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end
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2013-11-02 04:55:56 +08:00
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2019-04-10 23:00:14 +08:00
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unless opts[:quiet]
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if @actor == user
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deleted_by = Discourse.system_user
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opts[:context] = I18n.t("staff_action_logs.user_delete_self", url: opts[:context])
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else
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deleted_by = @actor
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2017-10-03 23:28:41 +08:00
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end
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2019-04-10 23:00:14 +08:00
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StaffActionLogger.new(deleted_by).log_user_deletion(user, opts.slice(:context))
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2013-04-15 23:39:30 +08:00
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end
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2019-04-10 23:00:14 +08:00
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MessageBus.publish "/file-change", ["refresh"], user_ids: [result.id]
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2013-04-12 04:04:20 +08:00
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end
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end
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2019-04-10 23:00:14 +08:00
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# After the user is deleted, remove the reviewable
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2019-09-05 01:12:48 +08:00
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if reviewable = ReviewableUser.pending.find_by(target: user)
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2019-04-17 23:26:43 +08:00
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reviewable.perform(@actor, :reject_user_delete)
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2019-04-10 23:00:14 +08:00
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end
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result
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2013-04-12 04:04:20 +08:00
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end
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2019-01-17 04:54:21 +08:00
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protected
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2019-01-18 23:04:29 +08:00
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def prepare_for_destroy(user)
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PostAction.where(user_id: user.id).delete_all
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UserAction.where('user_id = :user_id OR target_user_id = :user_id OR acting_user_id = :user_id', user_id: user.id).delete_all
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PostTiming.where(user_id: user.id).delete_all
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TopicViewItem.where(user_id: user.id).delete_all
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TopicUser.where(user_id: user.id).delete_all
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TopicAllowedUser.where(user_id: user.id).delete_all
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Notification.where(user_id: user.id).delete_all
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end
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2019-01-17 04:54:21 +08:00
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def optional_transaction(open_transaction: true)
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if open_transaction
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User.transaction { yield }
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else
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yield
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end
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end
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2013-11-06 03:35:28 +08:00
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end
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