fxa-auth-server/bounces/handler.js

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

module.exports = function (db, log) {

  function accountDeleted(uid, email) {
    log.info({ op: 'accountDeleted', uid: uid, email: email })
  }

  function gotError(email, err) {
    log.error({ op: 'databaseError', email: email, err: err })
  }

  function deleteAccountIfUnverified(record) {
    if (!record.emailVerified) {
      db.deleteAccount(record)
        .done(
          accountDeleted.bind(null, record.uid, record.email),
          gotError.bind(null, record.email)
        )
    }
  }

  function handleBounce(message) {
    var recipients = []
    if (message.bounce && message.bounce.bounceType === 'Permanent') {
      recipients = message.bounce.bouncedRecipients
    }
    else if (message.complaint && message.complaint.complaintFeedbackType === 'abuse') {
      recipients = message.complaint.complainedRecipients
    }
    for (var i = 0; i < recipients.length; i++) {
      var email = recipients[i].emailAddress
      log.info({ op: 'handleBounce', email: email, bounce: !!message.bounce })
      db.emailRecord(email)
        .done(
          deleteAccountIfUnverified,
          gotError.bind(null, email)
        )
    }
  }

  return handleBounce
}