Specs for pubsub subscribe service (#2951)

* Add spec for pubsubhubbub/subscribe

* Refactor pubsubhubbub/subscribe service
rebase/4.0.0rc2
Matt Jankowski 2017-05-09 14:48:30 -04:00 committed by Eugen Rochko
parent 441d6dc734
commit 682507bc3c
2 changed files with 123 additions and 5 deletions

View File

@ -1,14 +1,61 @@
# frozen_string_literal: true
class Pubsubhubbub::SubscribeService < BaseService
URL_PATTERN = /\A#{URI.regexp(%w(http https))}\z/
attr_reader :account, :callback, :secret, :lease_seconds
def call(account, callback, secret, lease_seconds)
return ['Invalid topic URL', 422] if account.nil?
return ['Invalid callback URL', 422] unless !callback.blank? && callback =~ /\A#{URI.regexp(%w(http https))}\z/
return ['Callback URL not allowed', 403] if DomainBlock.blocked?(Addressable::URI.parse(callback).normalize.host)
@account = account
@callback = callback
@secret = secret
@lease_seconds = lease_seconds
subscription = Subscription.where(account: account, callback_url: callback).first_or_create!(account: account, callback_url: callback)
process_subscribe
end
private
def process_subscribe
case subscribe_status
when :invalid_topic
['Invalid topic URL', 422]
when :invalid_callback
['Invalid callback URL', 422]
when :callback_not_allowed
['Callback URL not allowed', 403]
when :valid
confirm_subscription
['', 202]
end
end
def subscribe_status
if account.nil?
:invalid_topic
elsif !valid_callback?
:invalid_callback
elsif blocked_domain?
:callback_not_allowed
else
:valid
end
end
def confirm_subscription
subscription = locate_subscription
Pubsubhubbub::ConfirmationWorker.perform_async(subscription.id, 'subscribe', secret, lease_seconds)
end
['', 202]
def valid_callback?
callback.present? && callback =~ URL_PATTERN
end
def blocked_domain?
DomainBlock.blocked? Addressable::URI.parse(callback).normalize.host
end
def locate_subscription
Subscription.where(account: account, callback_url: callback).first_or_create!(account: account, callback_url: callback)
end
end

View File

@ -0,0 +1,71 @@
# frozen_string_literal: true
require 'rails_helper'
describe Pubsubhubbub::SubscribeService do
describe '#call' do
subject { described_class.new }
let(:user_account) { Fabricate(:account) }
context 'with a nil account' do
it 'returns the invalid topic status results' do
result = service_call(account: nil)
expect(result).to eq invalid_topic_status
end
end
context 'with an invalid callback url' do
it 'returns invalid callback status when callback is blank' do
result = service_call(callback: '')
expect(result).to eq invalid_callback_status
end
it 'returns invalid callback status when callback is not a URI' do
result = service_call(callback: 'invalid-hostname')
expect(result).to eq invalid_callback_status
end
end
context 'with a blocked domain in the callback' do
it 'returns callback not allowed' do
Fabricate(:domain_block, domain: 'test.host', severity: :suspend)
result = service_call(callback: 'https://test.host/api')
expect(result).to eq not_allowed_callback_status
end
end
context 'with a valid account and callback' do
it 'returns success status and confirms subscription' do
allow(Pubsubhubbub::ConfirmationWorker).to receive(:perform_async).and_return(nil)
subscription = Fabricate(:subscription, account: user_account)
result = service_call(callback: subscription.callback_url)
expect(result).to eq success_status
expect(Pubsubhubbub::ConfirmationWorker).to have_received(:perform_async).with(subscription.id, 'subscribe', 'asdf', 3600)
end
end
end
def service_call(account: user_account, callback: 'https://callback.host', secret: 'asdf', lease_seconds: 3600)
subject.call(account, callback, secret, lease_seconds)
end
def invalid_topic_status
['Invalid topic URL', 422]
end
def invalid_callback_status
['Invalid callback URL', 422]
end
def not_allowed_callback_status
['Callback URL not allowed', 403]
end
def success_status
['', 202]
end
end