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mastodon/app/services/subscribe_service.rb
Akihiko Odaki 54b273bf99 Close http connection in perform method of Request class ()
HTTP connections must be explicitly closed in many cases, and letting
perform method close connections makes its callers less redundant and
prevent them from forgetting to close connections.
2018-03-24 12:49:54 +01:00

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 Mastodon::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.where(suspended: false).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