100 lines
2.5 KiB
Ruby
100 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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module Terraform
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class RemoteStateHandler < BaseService
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StateLockedError = Class.new(StandardError)
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StateDeletedError = Class.new(StandardError)
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UnauthorizedError = Class.new(StandardError)
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def find_with_lock
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retrieve_with_lock(find_only: true) do |state|
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yield state if block_given?
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end
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end
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def handle_with_lock
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raise UnauthorizedError unless can_modify_state?
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retrieve_with_lock do |state|
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raise StateLockedError unless lock_matches?(state)
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yield state if block_given?
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state.save! unless state.destroyed?
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end
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nil
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end
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def lock!
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raise ArgumentError if params[:lock_id].blank?
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raise UnauthorizedError unless can_modify_state?
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retrieve_with_lock do |state|
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raise StateLockedError if state.locked?
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state.lock_xid = params[:lock_id]
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state.locked_by_user = current_user
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state.locked_at = Time.current
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state.save!
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end
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end
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def unlock!
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raise UnauthorizedError unless can_modify_state?
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retrieve_with_lock do |state|
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# force-unlock does not pass ID, so we ignore it if it is missing
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raise StateLockedError unless params[:lock_id].nil? || lock_matches?(state)
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state.lock_xid = nil
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state.locked_by_user = nil
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state.locked_at = nil
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state.save!
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end
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end
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private
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def retrieve_with_lock(find_only: false)
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create_or_find!(find_only: find_only).tap { |state| state.with_lock { yield state } }
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end
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def create_or_find!(find_only:)
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raise ArgumentError unless params[:name].present?
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find_params = { project: project, name: params[:name] }
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state = if find_only
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find_state!(find_params)
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else
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Terraform::State.create_or_find_by(find_params)
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end
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raise StateDeletedError if state.deleted_at?
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state
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end
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def lock_matches?(state)
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return true if state.lock_xid.nil? && params[:lock_id].nil?
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ActiveSupport::SecurityUtils
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.secure_compare(state.lock_xid.to_s, params[:lock_id].to_s)
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end
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def can_modify_state?
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current_user.can?(:admin_terraform_state, project)
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end
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def find_state(find_params)
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Terraform::State.find_by(find_params) # rubocop: disable CodeReuse/ActiveRecord
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end
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def find_state!(find_params)
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find_state(find_params) || raise(ActiveRecord::RecordNotFound, "Couldn't find state")
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end
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end
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end
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