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https://framagit.org/tykayn/mastodon.git
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Pubsub confirmation worker spec (#2974)
* Add specs for valid challenge response from pubsub confirmation worker * Refactor the pubsub confirmation worker
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@ -6,31 +6,85 @@ class Pubsubhubbub::ConfirmationWorker
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sidekiq_options queue: 'push', retry: false
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sidekiq_options queue: 'push', retry: false
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attr_reader :subscription, :mode, :secret, :lease_seconds
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def perform(subscription_id, mode, secret = nil, lease_seconds = nil)
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def perform(subscription_id, mode, secret = nil, lease_seconds = nil)
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subscription = Subscription.find(subscription_id)
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@subscription = Subscription.find(subscription_id)
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challenge = SecureRandom.hex
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@mode = mode
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@secret = secret
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@lease_seconds = lease_seconds
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process_confirmation
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end
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subscription.secret = secret
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private
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subscription.lease_seconds = lease_seconds
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subscription.confirmed = true
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response = HTTP.headers(user_agent: 'Mastodon/PubSubHubbub')
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def process_confirmation
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.timeout(:per_operation, write: 20, connect: 20, read: 50)
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prepare_subscription
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.get(subscription.callback_url, params: {
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'hub.topic' => account_url(subscription.account, format: :atom),
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'hub.mode' => mode,
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'hub.challenge' => challenge,
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'hub.lease_seconds' => subscription.lease_seconds,
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})
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body = response.body.to_s
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confirm_callback
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logger.debug "Confirming PuSH subscription for #{subscription.callback_url} with challenge #{challenge}: #{callback_response_body}"
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logger.debug "Confirming PuSH subscription for #{subscription.callback_url} with challenge #{challenge}: #{body}"
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update_subscription
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end
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if mode == 'subscribe' && body == challenge
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def update_subscription
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if successful_subscribe?
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subscription.save!
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subscription.save!
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elsif (mode == 'unsubscribe' && body == challenge) || !subscription.confirmed?
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elsif successful_unsubscribe?
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subscription.destroy!
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subscription.destroy!
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end
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end
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end
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end
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def successful_subscribe?
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subscribing? && response_matches_challenge?
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end
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def successful_unsubscribe?
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(unsubscribing? && response_matches_challenge?) || !subscription.confirmed?
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end
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def response_matches_challenge?
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callback_response_body == challenge
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end
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def subscribing?
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mode == 'subscribe'
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end
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def unsubscribing?
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mode == 'unsubscribe'
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end
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def confirm_callback
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@_confirm_callback ||= callback_get_with_params
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end
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def callback_get_with_params
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HTTP.headers(user_agent: 'Mastodon/PubSubHubbub')
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.timeout(:per_operation, write: 20, connect: 20, read: 50)
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.get(subscription.callback_url, params: callback_params)
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end
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def callback_response_body
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confirm_callback.body.to_s
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end
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def callback_params
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{
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'hub.topic' => account_url(subscription.account, format: :atom),
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'hub.mode' => mode,
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'hub.challenge' => challenge,
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'hub.lease_seconds' => subscription.lease_seconds,
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}
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end
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def prepare_subscription
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subscription.secret = secret
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subscription.lease_seconds = lease_seconds
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subscription.confirmed = true
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end
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def challenge
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@_challenge ||= SecureRandom.hex
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end
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end
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end
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88
spec/workers/pubsubhubbub/confirmation_worker_spec.rb
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88
spec/workers/pubsubhubbub/confirmation_worker_spec.rb
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@ -0,0 +1,88 @@
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# frozen_string_literal: true
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require 'rails_helper'
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describe Pubsubhubbub::ConfirmationWorker do
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include RoutingHelper
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subject { described_class.new }
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let!(:alice) { Fabricate(:account, username: 'alice') }
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let!(:subscription) { Fabricate(:subscription, account_id: alice.id, callback_url: 'http://example.com/api', confirmed: false, expires_at: 3.days.from_now, secret: nil) }
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describe 'perform' do
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describe 'with subscribe mode' do
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it 'confirms and updates subscription when challenge matches' do
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stub_random_value
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stub_request(:get, url_for_mode('subscribe'))
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.with(headers: http_headers)
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.to_return(status: 200, body: challenge_value, headers: {})
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seconds = 10.days.seconds.to_i
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subject.perform(subscription.id, 'subscribe', 'asdf', seconds)
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subscription.reload
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expect(subscription.secret).to eq 'asdf'
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expect(subscription.confirmed).to eq true
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expect(subscription.expires_at).to be_within(5).of(10.days.from_now)
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end
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it 'does not update subscription when challenge does not match' do
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stub_random_value
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stub_request(:get, url_for_mode('subscribe'))
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.with(headers: http_headers)
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.to_return(status: 200, body: 'wrong value', headers: {})
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seconds = 10.days.seconds.to_i
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subject.perform(subscription.id, 'subscribe', 'asdf', seconds)
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subscription.reload
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expect(subscription.secret).to be_blank
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expect(subscription.confirmed).to eq false
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expect(subscription.expires_at).to be_within(5).of(3.days.from_now)
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end
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end
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describe 'with unsubscribe mode' do
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it 'confirms and destroys subscription when challenge matches' do
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stub_random_value
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stub_request(:get, url_for_mode('unsubscribe'))
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.with(headers: http_headers)
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.to_return(status: 200, body: challenge_value, headers: {})
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seconds = 10.days.seconds.to_i
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subject.perform(subscription.id, 'unsubscribe', 'asdf', seconds)
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expect { subscription.reload }.to raise_error(ActiveRecord::RecordNotFound)
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end
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it 'does not destroy subscription when challenge does not match' do
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stub_random_value
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stub_request(:get, url_for_mode('unsubscribe'))
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.with(headers: http_headers)
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.to_return(status: 200, body: 'wrong value', headers: {})
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seconds = 10.days.seconds.to_i
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subject.perform(subscription.id, 'unsubscribe', 'asdf', seconds)
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expect { subscription.reload }.not_to raise_error
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end
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end
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end
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def url_for_mode(mode)
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"http://example.com/api?hub.challenge=#{challenge_value}&hub.lease_seconds=863999&hub.mode=#{mode}&hub.topic=https://#{Rails.configuration.x.local_domain}/users/alice.atom"
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end
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def stub_random_value
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allow(SecureRandom).to receive(:hex).and_return(challenge_value)
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end
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def challenge_value
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'1a2s3d4f'
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end
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def http_headers
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{ 'Connection' => 'close', 'Host' => 'example.com', 'User-Agent' => 'Mastodon/PubSubHubbub' }
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end
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end
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