class ActionMailbox::Ingresses::Mandrill::InboundEmailsController

the Active Storage service, or the Active Job backend is misconfigured or unavailable
- 500 Server Error if the Mandrill API key is missing, or one of the Active Record database,
- 422 Unprocessable Entity if the request is missing required parameters
- 404 Not Found if Action Mailbox is not configured to accept inbound emails from Mandrill
- 401 Unauthorized if the request’s signature could not be validated
- 204 No Content if an inbound email is successfully recorded and enqueued for routing to the appropriate mailbox
Returns:
Each event is expected to have a msg object containing a full RFC 822 message in its raw_msg property.
Requires a mandrill_events parameter containing a JSON array of Mandrill inbound email event objects.
Ingests inbound emails from Mandrill.

def authenticate 

def authenticate
  head :unauthorized unless authenticated?
end

def authenticated? 

def authenticated?
  if key.present?
    Authenticator.new(request, key).authenticated?
  else
    raise ArgumentError, <<~MESSAGE.squish
      Missing required Mandrill API key. Set action_mailbox.mandrill_api_key in your application's
      encrypted credentials or provide the MANDRILL_INGRESS_API_KEY environment variable.
    MESSAGE
  end
end

def create 

def create
  raw_emails.each { |raw_email| ActionMailbox::InboundEmail.create_and_extract_message_id! raw_email }
  head :ok
rescue JSON::ParserError => error
  logger.error error.message
  head :unprocessable_entity
end

def events 

def events
  JSON.parse params.require(:mandrill_events)
end

def health_check 

def health_check
  head :ok
end

def key 

def key
  Rails.application.credentials.dig(:action_mailbox, :mandrill_api_key) || ENV["MANDRILL_INGRESS_API_KEY"]
end

def raw_emails 

def raw_emails
  events.select { |event| event["event"] == "inbound" }.collect { |event| event.dig("msg", "raw_msg") }
end