Federated social network node, running on kosmos.social https://kosmos.social
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mastodon/app/controllers/xrd_controller.rb

58 lines
1.5 KiB

class XrdController < ApplicationController
before_action :set_default_format
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 = "acct:#{@account.username}@#{Rails.configuration.x.local_domain}"
@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
request.format = 'json' if request.headers["HTTP_ACCEPT"].nil? && params[:format].nil?
end
def username_from_resource
if resource_param.start_with?('acct:') || resource_param.include?('@')
resource_param.split('@').first.gsub('acct:', '')
else
url = Addressable::URI.parse(resource_param)
url.path.gsub('/users/', '')
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!
end
(['RSA'] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
end
def resource_param
params.require(:resource)
end
end