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55 lines
1.4 KiB
55 lines
1.4 KiB
# frozen_string_literal: true |
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module WellKnown |
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class WebfingerController < ApplicationController |
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def show |
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@account = Account.find_local!(username_from_resource) |
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@canonical_account_uri = @account.to_webfinger_s |
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@magic_key = pem_to_magic_key(@account.keypair.public_key) |
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respond_to do |format| |
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format.any(:json, :html) do |
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render formats: :json, content_type: 'application/jrd+json' |
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end |
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format.xml do |
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render content_type: 'application/xrd+xml' |
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end |
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end |
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rescue ActiveRecord::RecordNotFound |
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head 404 |
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end |
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private |
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def username_from_resource |
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resource_user = resource_param |
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username, domain = resource_user.split('@') |
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if Rails.configuration.x.alternate_domains.include?(domain) |
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resource_user = "#{username}@#{Rails.configuration.x.local_domain}" |
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end |
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WebfingerResource.new(resource_user).username |
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end |
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def pem_to_magic_key(public_key) |
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modulus, exponent = [public_key.n, public_key.e].map do |component| |
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result = [] |
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until component.zero? |
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result << [component % 256].pack('C') |
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component >>= 8 |
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end |
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result.reverse.join |
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end |
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(['RSA'] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.') |
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end |
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def resource_param |
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params.require(:resource) |
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end |
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end |
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end
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