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metu.life/app/controllers/xrd_controller.rb

39 lines
973 B

class XrdController < ApplicationController
before_filter :set_format
def host_meta
@webfinger_template = "#{webfinger_url}?resource={uri}"
end
def webfinger
@account = Account.find_by!(username: username_from_resource, domain: nil)
@canonical_account_uri = "acct:#{@account.username}@#{LOCAL_DOMAIN}"
@magic_key = pem_to_magic_key(@account.keypair.public_key)
end
private
def set_format
request.format = 'xml'
response.headers['Content-Type'] = 'application/xrd+xml'
end
def username_from_resource
params[:resource].split('@').first.gsub('acct:', '')
end
def pem_to_magic_key(public_key)
modulus, exponent = [public_key.n, public_key.e].map do |component|
result = ""
until component == 0 do
result << [component % 256].pack('C')
component >>= 8
end
result.reverse!
end
(["RSA"] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
end
end