* 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)
		
			
				
	
	
		
			55 lines
		
	
	
	
		
			1.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			55 lines
		
	
	
	
		
			1.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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class SubscribeService < BaseService
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  def call(account)
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    @account        = account
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    @account.secret = SecureRandom.hex
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    @response       = build_request.perform
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    if response_failed_permanently?
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      # We're not allowed to subscribe. Fail and move on.
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      @account.secret = ''
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      @account.save!
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    elsif response_successful?
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      # The subscription will be confirmed asynchronously.
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      @account.save!
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    else
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      # The response was either a 429 rate limit, or a 5xx error.
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      # We need to retry at a later time. Fail loudly!
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      raise "Subscription attempt failed for #{@account.acct} (#{@account.hub_url}): HTTP #{@response.code}"
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    end
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  end
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  private
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  def build_request
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    request = Request.new(:post, @account.hub_url, form: subscription_params)
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    request.on_behalf_of(some_local_account) if some_local_account
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    request
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  end
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  def subscription_params
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    {
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      'hub.topic': @account.remote_url,
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      'hub.mode': 'subscribe',
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      'hub.callback': api_subscription_url(@account.id),
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      'hub.verify': 'async',
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      'hub.secret': @account.secret,
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      'hub.lease_seconds': 7.days.seconds,
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    }
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  end
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  def some_local_account
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    @some_local_account ||= Account.local.first
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  end
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  # Any response in the 3xx or 4xx range, except for 429 (rate limit)
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  def response_failed_permanently?
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    (@response.status.redirect? || @response.status.client_error?) && !@response.status.too_many_requests?
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  end
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  # Any response in the 2xx range
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  def response_successful?
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    @response.status.success?
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  end
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end
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