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When an ActivityPub Announce is processed and the boosted toot is not known, fetch it on behalf of one of the booster's followers. This is to allow fetching self-boosts of previously-unknown private toots. If fetching on behalf of a user fails, try fetching it anonymously: the selected follower of a boosting user may be banned by the boosted toot's author.
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f9afd06221
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3 changed files with 13 additions and 8 deletions
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@ -52,18 +52,22 @@ module JsonLdHelper
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graph.dump(:normalize)
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graph.dump(:normalize)
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end
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end
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def fetch_resource(uri, id)
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def fetch_resource(uri, id, on_behalf_of = nil)
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unless id
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unless id
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json = fetch_resource_without_id_validation(uri)
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json = fetch_resource_without_id_validation(uri, on_behalf_of)
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return unless json
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return unless json
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uri = json['id']
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uri = json['id']
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end
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end
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json = fetch_resource_without_id_validation(uri)
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json = fetch_resource_without_id_validation(uri, on_behalf_of)
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json.present? && json['id'] == uri ? json : nil
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json.present? && json['id'] == uri ? json : nil
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end
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end
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def fetch_resource_without_id_validation(uri)
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def fetch_resource_without_id_validation(uri, on_behalf_of = nil)
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build_request(uri, on_behalf_of).perform do |response|
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return body_to_json(response.body_with_limit) if response.code == 200
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end
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# If request failed, retry without doing it on behalf of a user
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build_request(uri).perform do |response|
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build_request(uri).perform do |response|
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response.code == 200 ? body_to_json(response.body_with_limit) : nil
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response.code == 200 ? body_to_json(response.body_with_limit) : nil
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end
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end
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@ -85,8 +89,9 @@ module JsonLdHelper
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private
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private
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def build_request(uri)
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def build_request(uri, on_behalf_of = nil)
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request = Request.new(:get, uri)
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request = Request.new(:get, uri)
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request.on_behalf_of(on_behalf_of) if on_behalf_of
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request.add_headers('Accept' => 'application/activity+json, application/ld+json')
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request.add_headers('Accept' => 'application/activity+json, application/ld+json')
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request
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request
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end
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end
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@ -30,7 +30,7 @@ class ActivityPub::Activity::Announce < ActivityPub::Activity
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if object_uri.start_with?('http')
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if object_uri.start_with?('http')
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return if ActivityPub::TagManager.instance.local_uri?(object_uri)
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return if ActivityPub::TagManager.instance.local_uri?(object_uri)
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ActivityPub::FetchRemoteStatusService.new.call(object_uri, id: true)
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ActivityPub::FetchRemoteStatusService.new.call(object_uri, id: true, on_behalf_of: @account.followers.local.first)
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elsif @object['url'].present?
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elsif @object['url'].present?
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::FetchRemoteStatusService.new.call(@object['url'])
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::FetchRemoteStatusService.new.call(@object['url'])
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end
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end
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@ -4,9 +4,9 @@ class ActivityPub::FetchRemoteStatusService < BaseService
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include JsonLdHelper
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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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# Should be called when uri has already been checked for locality
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def call(uri, id: true, prefetched_body: nil)
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def call(uri, id: true, prefetched_body: nil, on_behalf_of: nil)
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@json = if prefetched_body.nil?
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@json = if prefetched_body.nil?
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fetch_resource(uri, id)
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fetch_resource(uri, id, on_behalf_of)
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else
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else
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body_to_json(prefetched_body)
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body_to_json(prefetched_body)
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end
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end
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