f85f167f50
This implements archive import feature. The feature is divided in two main subfeatures: archive validation and archive import. Archive validation performs different validation on input user archive. This can be used without actually running import, e.g. when user wants to check the archive before import from the frontend. Validators may add messages and modify the archive. Validators are separated in two types: critical validators and non-critical validators. If validations by critical validators fail it means we can't import archive. If non-critical validations fail, we can import archive, but some warning messages are rendered. Also validators may change archive contents, e.g. when some entity can't be imported it may be removed from the archive. Validators' job is to take away complexity from the importer and perform the validations which are not implemented in other parts of the system, e.g. DB validations or diaspora_federation entity validations. Archive importer then takes the modified archive from the validator and imports it. In order to incapsulate high-level migration logic a MigrationService is introduced. MigrationService links ArchiveValidator, ArchiveImporter and AccountMigration. Also here is introduced a rake task which may be used by podmins to run archive import.
66 lines
1.7 KiB
Ruby
66 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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class ArchiveValidator
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# We have to validate relayables before import because during import we'll not be able to fetch parent anymore
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# because parent author will point to ourselves.
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class RelayableValidator < BaseValidator
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include EntitiesHelper
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def initialize(archive_hash, relayable)
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@relayable = relayable
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super(archive_hash)
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end
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private
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def validate
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self.valid = parent_present?
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end
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attr_reader :relayable
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alias json relayable
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# TODO: use diaspora federation to fetch parent where possible
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# For own relayables we could just use RelatedEntity.fetch;
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# For others' relayables we should check the present "own posts" first, and then if the target post is missing from
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# there we could try to fetch it with RelatedEntity.fetch.
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# Common methods used by subclasses:
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def missing_parent_message
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messages.push("Parent entity for #{self} is missing. Impossible to import, ignoring.")
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end
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def parent_present?
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parent.present? || (missing_parent_message && false)
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end
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def parent
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@parent ||= find_parent
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end
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def find_parent
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if entity_type == "poll_participation"
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post_find_by_poll_guid(parent_guid)
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else
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post_find_by_guid(parent_guid)
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end
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end
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def parent_guid
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entity_data.fetch("parent_guid")
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end
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def post_find_by_guid(guid)
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posts.find {|post|
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post.fetch("entity_data").fetch("guid") == guid
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}
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end
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def post_find_by_poll_guid(guid)
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posts.find {|post|
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post.fetch("entity_data").fetch("poll", nil)&.fetch("entity_data", nil)&.fetch("guid", nil) == guid
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}
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end
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end
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end
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