glitchier-soc/app/helpers/jsonld_helper.rb
Eugen Rochko dccc1a74ad Support more variations of ActivityPub keyId in signature (#4630)
- Tries to avoid performing HTTP request if the keyId is an actor URI
- Likewise if the URI is a fragment URI on top of actor URI
- Resolves public key, returns owner if the owner links back to the key
2017-08-21 22:57:34 +02:00

39 lines
897 B
Ruby

# frozen_string_literal: true
module JsonLdHelper
def equals_or_includes?(haystack, needle)
haystack.is_a?(Array) ? haystack.include?(needle) : haystack == needle
end
def first_of_value(value)
value.is_a?(Array) ? value.first : value
end
def value_or_id(value)
value.is_a?(String) ? value : value['id']
end
def supported_context?(json)
equals_or_includes?(json['@context'], ActivityPub::TagManager::CONTEXT)
end
def fetch_resource(uri)
response = build_request(uri).perform
return if response.code != 200
body_to_json(response.to_s)
end
def body_to_json(body)
body.is_a?(String) ? Oj.load(body, mode: :strict) : body
rescue Oj::ParseError
nil
end
private
def build_request(uri)
request = Request.new(:get, uri)
request.add_headers('Accept' => 'application/activity+json, application/ld+json')
request
end
end