mastodon/app/helpers/jsonld_helper.rb

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# 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 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
Oj.load(response.to_s, mode: :strict)
rescue Oj::ParseError
nil
end
private
def build_request(uri)
request = Request.new(:get, uri)
request.add_headers('Accept' => 'application/activity+json')
request
end
end