* Add Request class with HTTP signature generator Spec: https://tools.ietf.org/html/draft-cavage-http-signatures-06 * Add HTTP signature verification concern * Add test for SignatureVerification concern * Add basic test for Request class * Make PuSH subscribe/unsubscribe requests use new Request class Accidentally fix lease_seconds not being set and sent properly, and change the new minimum subscription duration to 1 day * Make all PuSH workers use new Request class * Make Salmon sender use new Request class * Make FetchLinkService use new Request class * Make FetchAtomService use the new Request class * Make Remotable use the new Request class * Make ResolveRemoteAccountService use the new Request class * Add more tests * Allow +-30 seconds window for signed request to remain valid * Disable time window validation for signed requests, restore 7 days as PuSH subscription duration (which was previous default due to a bug)
		
			
				
	
	
		
			88 lines
		
	
	
	
		
			1.9 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
	
		
			1.9 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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    Request.new(:get, subscription.callback_url, params: callback_params).perform
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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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