113 lines
3.8 KiB
Ruby
113 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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module Users
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class DestroyService
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DestroyError = Class.new(StandardError)
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attr_accessor :current_user
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def initialize(current_user)
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@current_user = current_user
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@scheduled_records_gauge = Gitlab::Metrics.gauge(
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:gitlab_ghost_user_migration_scheduled_records_total,
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'The total number of scheduled ghost user migrations'
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)
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@lag_gauge = Gitlab::Metrics.gauge(
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:gitlab_ghost_user_migration_lag_seconds,
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'The waiting time in seconds of the oldest scheduled record for ghost user migration'
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)
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end
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# Asynchronously destroys +user+
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# Migrating the associated user records, and post-migration cleanup is
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# handled by the Users::MigrateRecordsToGhostUserWorker cron worker.
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#
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# The operation will fail if the user is the sole owner of any groups. To
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# force the groups to be destroyed, pass `delete_solo_owned_groups: true` in
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# +options+.
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#
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# The user's contributions will be migrated to a global ghost user. To
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# force the contributions to be destroyed, pass `hard_delete: true` in
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# +options+.
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#
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# `hard_delete: true` implies `delete_solo_owned_groups: true`. To perform
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# a hard deletion without destroying solo-owned groups, pass
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# `delete_solo_owned_groups: false, hard_delete: true` in +options+.
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#
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def execute(user, options = {})
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delete_solo_owned_groups = options.fetch(:delete_solo_owned_groups, options[:hard_delete])
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unless Ability.allowed?(current_user, :destroy_user, user) || options[:skip_authorization]
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raise Gitlab::Access::AccessDeniedError, "#{current_user} tried to destroy user #{user}!"
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end
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if !delete_solo_owned_groups && user.solo_owned_groups.present?
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user.errors.add(:base, 'You must transfer ownership or delete groups before you can remove user')
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return user
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end
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user.block
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# Load the records. Groups are unavailable after membership is destroyed.
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solo_owned_groups = user.solo_owned_groups.load
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user.members.each_batch { |batch| batch.destroy_all } # rubocop:disable Style/SymbolProc, Cop/DestroyAll
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solo_owned_groups.each do |group|
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Groups::DestroyService.new(group, current_user).execute
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end
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namespace = user.namespace
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namespace.prepare_for_destroy
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user.personal_projects.each do |project|
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success = ::Projects::DestroyService.new(project, current_user).execute
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raise DestroyError, "Project #{project.id} can't be deleted" unless success
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end
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yield(user) if block_given?
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hard_delete = options.fetch(:hard_delete, false)
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Users::GhostUserMigration.create!(user: user,
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initiator_user: current_user,
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hard_delete: hard_delete)
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update_metrics
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end
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private
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attr_reader :scheduled_records_gauge, :lag_gauge
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def update_metrics
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update_scheduled_records_gauge
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update_lag_gauge
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end
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def update_scheduled_records_gauge
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# We do not want to issue unbounded COUNT() queries, hence we limit the
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# query to count 1001 records and then approximate the result.
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count = Users::GhostUserMigration.limit(1001).count
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if count == 1001
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# more than 1000 records, approximate count
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min = Users::GhostUserMigration.minimum(:id) || 0
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max = Users::GhostUserMigration.maximum(:id) || 0
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scheduled_records_gauge.set({}, max - min)
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else
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# less than 1000 records, count is accurate
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scheduled_records_gauge.set({}, count)
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end
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end
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def update_lag_gauge
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oldest_job = Users::GhostUserMigration.first
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lag_gauge.set({}, Time.current - oldest_job.created_at)
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end
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end
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end
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Users::DestroyService.prepend_mod_with('Users::DestroyService')
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