forked from fedi/mastodon
b01a19fe39
* Process Create / Announce activity in FetchRemoteStatusService * Use activity URL in ActivityPub for reblogs * Redirect to the original status on StatusesController#show
49 lines
1.2 KiB
Ruby
49 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::FetchRemoteStatusService < BaseService
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include JsonLdHelper
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# Should be called when uri has already been checked for locality
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def call(uri, prefetched_json = nil)
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@json = body_to_json(prefetched_json) || fetch_resource(uri)
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return unless supported_context?
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activity = activity_json
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actor_id = value_or_id(activity['actor'])
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return unless expected_type?(activity) && trustworthy_attribution?(uri, actor_id)
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actor = ActivityPub::TagManager.instance.uri_to_resource(actor_id, Account)
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actor = ActivityPub::FetchRemoteAccountService.new.call(actor_id) if actor.nil?
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ActivityPub::Activity.factory(activity, actor).perform
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end
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private
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def activity_json
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if %w(Note Article).include? @json['type']
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{
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'type' => 'Create',
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'actor' => first_of_value(@json['attributedTo']),
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'object' => @json,
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}
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else
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@json
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end
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end
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def trustworthy_attribution?(uri, attributed_to)
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Addressable::URI.parse(uri).normalized_host.casecmp(Addressable::URI.parse(attributed_to).normalized_host).zero?
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end
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def supported_context?
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super(@json)
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end
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def expected_type?(json)
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%w(Create Announce).include? json['type']
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end
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end
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