08949cca41
* Add specs for valid challenge response from pubsub confirmation worker * Refactor the pubsub confirmation worker
91 lines
2.0 KiB
Ruby
91 lines
2.0 KiB
Ruby
# frozen_string_literal: true
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class Pubsubhubbub::ConfirmationWorker
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include Sidekiq::Worker
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include RoutingHelper
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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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@subscription = Subscription.find(subscription_id)
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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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private
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def process_confirmation
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prepare_subscription
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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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update_subscription
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end
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def update_subscription
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if successful_subscribe?
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subscription.save!
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elsif successful_unsubscribe?
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subscription.destroy!
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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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