49 lines
1.4 KiB
Ruby
49 lines
1.4 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ProviderDiscovery < OEmbed::ProviderDiscovery
|
|
class << self
|
|
def get(url, **options)
|
|
provider = discover_provider(url, options)
|
|
|
|
options.delete(:html)
|
|
|
|
provider.get(url, options)
|
|
end
|
|
|
|
def discover_provider(url, **options)
|
|
format = options[:format]
|
|
|
|
if options[:html]
|
|
html = Nokogiri::HTML(options[:html])
|
|
else
|
|
res = Request.new(:get, url).perform
|
|
|
|
raise OEmbed::NotFound, url if res.code != 200 || res.mime_type != 'text/html'
|
|
|
|
html = Nokogiri::HTML(res.to_s)
|
|
end
|
|
|
|
if format.nil? || format == :json
|
|
provider_endpoint ||= html.at_xpath('//link[@type="application/json+oembed"]')&.attribute('href')&.value
|
|
format ||= :json if provider_endpoint
|
|
end
|
|
|
|
if format.nil? || format == :xml
|
|
provider_endpoint ||= html.at_xpath('//link[@type="application/xml+oembed"]')&.attribute('href')&.value
|
|
format ||= :xml if provider_endpoint
|
|
end
|
|
|
|
raise OEmbed::NotFound, url if provider_endpoint.nil?
|
|
begin
|
|
provider_endpoint = Addressable::URI.parse(provider_endpoint)
|
|
provider_endpoint.query = nil
|
|
provider_endpoint = provider_endpoint.to_s
|
|
rescue Addressable::URI::InvalidURIError
|
|
raise OEmbed::NotFound, url
|
|
end
|
|
|
|
OEmbed::Provider.new(provider_endpoint, format)
|
|
end
|
|
end
|
|
end
|