84 lines
2.9 KiB
Ruby
84 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module BackgroundMigration
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# Migrates the integration.properties column from plaintext to encrypted text.
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class EncryptIntegrationProperties
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# The Integration model, with just the relevant bits.
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class Integration < ActiveRecord::Base
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include EachBatch
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ALGORITHM = 'aes-256-gcm'
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self.table_name = 'integrations'
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self.inheritance_column = :_type_disabled
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scope :with_properties, -> { where.not(properties: nil) }
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scope :not_already_encrypted, -> { where(encrypted_properties: nil) }
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scope :for_batch, ->(range) { where(id: range) }
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attr_encrypted :encrypted_properties_tmp,
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attribute: :encrypted_properties,
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mode: :per_attribute_iv,
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key: ::Settings.attr_encrypted_db_key_base_32,
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algorithm: ALGORITHM,
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marshal: true,
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marshaler: ::Gitlab::Json,
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encode: false,
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encode_iv: false
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# See 'Integration#reencrypt_properties'
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def encrypt_properties
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data = ::Gitlab::Json.parse(properties)
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iv = generate_iv(ALGORITHM)
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ep = self.class.attr_encrypt(:encrypted_properties_tmp, data, { iv: iv })
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[ep, iv]
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end
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end
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def perform(start_id, stop_id)
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batch_query = Integration.with_properties.not_already_encrypted.for_batch(start_id..stop_id)
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encrypt_batch(batch_query)
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mark_job_as_succeeded(start_id, stop_id)
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end
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private
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def mark_job_as_succeeded(*arguments)
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Gitlab::Database::BackgroundMigrationJob.mark_all_as_succeeded(
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self.class.name.demodulize,
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arguments
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)
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end
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# represent binary string as a PSQL binary literal:
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# https://www.postgresql.org/docs/9.4/datatype-binary.html
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def bytea(value)
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"'\\x#{value.unpack1('H*')}'::bytea"
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end
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def encrypt_batch(batch_query)
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values = batch_query.select(:id, :properties).map do |record|
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encrypted_properties, encrypted_properties_iv = record.encrypt_properties
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"(#{record.id}, #{bytea(encrypted_properties)}, #{bytea(encrypted_properties_iv)})"
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end
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return if values.empty?
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Integration.connection.execute(<<~SQL.squish)
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WITH cte(cte_id, cte_encrypted_properties, cte_encrypted_properties_iv)
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AS #{::Gitlab::Database::AsWithMaterialized.materialized_if_supported} (
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SELECT *
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FROM (VALUES #{values.join(',')}) AS t (id, encrypted_properties, encrypted_properties_iv)
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)
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UPDATE #{Integration.table_name}
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SET encrypted_properties = cte_encrypted_properties
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, encrypted_properties_iv = cte_encrypted_properties_iv
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FROM cte
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WHERE cte_id = id
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SQL
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end
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end
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end
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end
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