diaspora/lib/archive_importer/own_entity_importer.rb
cmrd Senya f85f167f50 Implement archive import backend
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.
2019-04-26 18:41:27 +03:00

31 lines
723 B
Ruby

# frozen_string_literal: true
class ArchiveImporter
class OwnEntityImporter < EntityImporter
def import
substitute_author
super
rescue Diaspora::Federation::InvalidAuthor
return if real_author == old_author_id
logger.warn "#{self.class}: attempt to import an entity with guid \"#{guid}\" which belongs to #{real_author}"
end
private
def substitute_author
@old_author_id = entity_data["author"]
entity_data["author"] = user.diaspora_handle
end
attr_reader :old_author_id
def persisted_object
@persisted_object ||= (instance if real_author == old_author_id)
end
def real_author
instance.author.diaspora_handle
end
end
end