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