You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.3 KiB
89 lines
2.3 KiB
# 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 |
|
|
|
# The url attribute can be a string, an array of strings, or an array of objects. |
|
# The objects could include a mimeType. Not-included mimeType means it's text/html. |
|
def url_to_href(value, preferred_type = nil) |
|
single_value = if value.is_a?(Array) && !value.first.is_a?(String) |
|
value.find { |link| preferred_type.nil? || ((link['mimeType'].presence || 'text/html') == preferred_type) } |
|
elsif value.is_a?(Array) |
|
value.first |
|
else |
|
value |
|
end |
|
|
|
if single_value.nil? || single_value.is_a?(String) |
|
single_value |
|
else |
|
single_value['href'] |
|
end |
|
end |
|
|
|
def as_array(value) |
|
value.is_a?(Array) ? value : [value] |
|
end |
|
|
|
def value_or_id(value) |
|
value.is_a?(String) || value.nil? ? value : value['id'] |
|
end |
|
|
|
def supported_context?(json) |
|
!json.nil? && equals_or_includes?(json['@context'], ActivityPub::TagManager::CONTEXT) |
|
end |
|
|
|
def unsupported_uri_scheme?(uri) |
|
!uri.start_with?('http://', 'https://') |
|
end |
|
|
|
def canonicalize(json) |
|
graph = RDF::Graph.new << JSON::LD::API.toRdf(json) |
|
graph.dump(:normalize) |
|
end |
|
|
|
def fetch_resource(uri, id) |
|
unless id |
|
json = fetch_resource_without_id_validation(uri) |
|
return unless json |
|
uri = json['id'] |
|
end |
|
|
|
json = fetch_resource_without_id_validation(uri) |
|
json.present? && json['id'] == uri ? json : nil |
|
end |
|
|
|
def fetch_resource_without_id_validation(uri) |
|
build_request(uri).perform do |response| |
|
response.code == 200 ? body_to_json(response.body_with_limit) : nil |
|
end |
|
end |
|
|
|
def body_to_json(body) |
|
body.is_a?(String) ? Oj.load(body, mode: :strict) : body |
|
rescue Oj::ParseError |
|
nil |
|
end |
|
|
|
def merge_context(context, new_context) |
|
if context.is_a?(Array) |
|
context << new_context |
|
else |
|
[context, new_context] |
|
end |
|
end |
|
|
|
private |
|
|
|
def build_request(uri) |
|
request = Request.new(:get, uri) |
|
request.add_headers('Accept' => 'application/activity+json, application/ld+json') |
|
request |
|
end |
|
end
|
|
|