catstodon/app/services/keys/query_service.rb

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2020-06-02 19:24:53 +02:00
# frozen_string_literal: true
class Keys::QueryService < BaseService
include JsonLdHelper
class Result < ActiveModelSerializers::Model
attributes :account, :devices
def initialize(account, devices)
super(
account: account,
devices: devices || [],
)
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end
def find(device_id)
@devices.find { |device| device.device_id == device_id }
end
end
class Device < ActiveModelSerializers::Model
attributes :device_id, :name, :identity_key, :fingerprint_key
def initialize(attributes = {})
super(
device_id: attributes[:device_id],
name: attributes[:name],
identity_key: attributes[:identity_key],
fingerprint_key: attributes[:fingerprint_key],
)
@claim_url = attributes[:claim_url]
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end
def valid_claim_url?
return false if @claim_url.blank?
begin
parsed_url = Addressable::URI.parse(@claim_url).normalize
rescue Addressable::URI::InvalidURIError
return false
end
%w(http https).include?(parsed_url.scheme) && parsed_url.host.present?
end
end
def call(account)
@account = account
if @account.local?
query_local_devices!
else
query_remote_devices!
end
Result.new(@account, @devices)
end
private
def query_local_devices!
@devices = @account.devices.map { |device| Device.new(device) }
end
def query_remote_devices!
return if @account.devices_url.blank?
json = fetch_resource(@account.devices_url)
return if json['items'].blank?
@devices = json['items'].map do |device|
Device.new(device_id: device['id'], name: device['name'], identity_key: device.dig('identityKey', 'publicKeyBase64'), fingerprint_key: device.dig('fingerprintKey', 'publicKeyBase64'), claim_url: device['claim'])
end
rescue HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::Error => e
Rails.logger.debug { "Querying devices for #{@account.acct} failed: #{e}" }
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nil
end
end