69 lines
1.9 KiB
Ruby
69 lines
1.9 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class XrdController < ApplicationController
|
|
before_action :set_default_format_json, only: :webfinger
|
|
before_action :set_default_format_xml, only: :host_meta
|
|
|
|
def host_meta
|
|
@webfinger_template = "#{webfinger_url}?resource={uri}"
|
|
|
|
respond_to do |format|
|
|
format.xml { render content_type: 'application/xrd+xml' }
|
|
end
|
|
end
|
|
|
|
def webfinger
|
|
@account = Account.find_local!(username_from_resource)
|
|
@canonical_account_uri = @account.to_webfinger_s
|
|
@magic_key = pem_to_magic_key(@account.keypair.public_key)
|
|
|
|
respond_to do |format|
|
|
format.xml { render content_type: 'application/xrd+xml' }
|
|
format.json { render content_type: 'application/jrd+json' }
|
|
end
|
|
rescue ActiveRecord::RecordNotFound
|
|
head 404
|
|
end
|
|
|
|
private
|
|
|
|
def set_default_format_xml
|
|
request.format = 'xml' if request.headers['HTTP_ACCEPT'].nil? && params[:format].nil?
|
|
end
|
|
|
|
def set_default_format_json
|
|
request.format = 'json' if request.headers['HTTP_ACCEPT'].nil? && params[:format].nil?
|
|
end
|
|
|
|
def username_from_resource
|
|
if resource_param =~ /\Ahttps?:\/\//
|
|
path_params = Rails.application.routes.recognize_path(resource_param)
|
|
raise ActiveRecord::RecordNotFound unless path_params[:controller] == 'users' && path_params[:action] == 'show'
|
|
path_params[:username]
|
|
else
|
|
username, domain = resource_param.gsub(/\Aacct:/, '').split('@')
|
|
raise ActiveRecord::RecordNotFound unless TagManager.instance.local_domain?(domain)
|
|
username
|
|
end
|
|
end
|
|
|
|
def pem_to_magic_key(public_key)
|
|
modulus, exponent = [public_key.n, public_key.e].map do |component|
|
|
result = []
|
|
|
|
until component.zero?
|
|
result << [component % 256].pack('C')
|
|
component >>= 8
|
|
end
|
|
|
|
result.reverse.join
|
|
end
|
|
|
|
(['RSA'] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
|
|
end
|
|
|
|
def resource_param
|
|
params.require(:resource)
|
|
end
|
|
end
|