44 lines
1.1 KiB
Ruby
44 lines
1.1 KiB
Ruby
|
# frozen_string_literal: true
|
||
|
|
|
||
|
|
module WellKnown
|
||
|
|
class WebfingerController < ApplicationController
|
||
|
|
def show
|
||
|
|
@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 username_from_resource
|
||
|
|
WebfingerResource.new(resource_param).username
|
||
|
|
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
|
||
|
|
end
|