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Fetch boosted statuses on behalf of a follower (fixes #7426) (#7459)

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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.
This commit is contained in:
ThibG 2018-05-12 16:48:32 +02:00 • committed by Eugen Rochko
parent f9afd06221
commit 7467361d70
3 changed files with 13 additions and 8 deletions
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15
app/helpers/jsonld_helper.rb
View file

@ -52,18 +52,22 @@ module JsonLdHelper
graph.dump(:normalize)
end
def fetch_resource(uri, id)
def fetch_resource(uri, id, on_behalf_of = nil)
unless id
json = fetch_resource_without_id_validation(uri)
json = fetch_resource_without_id_validation(uri, on_behalf_of)
return unless json
uri = json['id']
end
json = fetch_resource_without_id_validation(uri)
json = fetch_resource_without_id_validation(uri, on_behalf_of)
json.present? && json['id'] == uri ? json : nil
end
def fetch_resource_without_id_validation(uri)
def fetch_resource_without_id_validation(uri, on_behalf_of = nil)
build_request(uri, on_behalf_of).perform do |response|
return body_to_json(response.body_with_limit) if response.code == 200
end
# If request failed, retry without doing it on behalf of a user
build_request(uri).perform do |response|
response.code == 200 ? body_to_json(response.body_with_limit) : nil
end
@ -85,8 +89,9 @@ module JsonLdHelper
private
def build_request(uri)
def build_request(uri, on_behalf_of = nil)
request = Request.new(:get, uri)
request.on_behalf_of(on_behalf_of) if on_behalf_of
request.add_headers('Accept' => 'application/activity+json, application/ld+json')
request
end