mirror of
https://github.com/GSA/notifications-api.git
synced 2025-12-21 07:51:13 -05:00
We've seen errors caused by what we suspect is a race condition when SES callback processing tries to look up the notification before the sender worker has saved notification reference from the SES POST response to the database. This adds a retry for SES callback task if the notification was not found and the message is less than 10 minutes old and removes the error log message for notifications older than 3 days (since they might no longer exist in the notifications table and would've been marked as failure by then either way). In order to be able to call retry and silence the error log based on notification time this change inlines `process_ses_response` and `update_notification_by_reference` functions into the celery task. It also removes a lot of defensive error-handling that doesn't appear to have been triggered in the last few months (for things like missing keys in SES callback data).
277 lines
12 KiB
Python
277 lines
12 KiB
Python
import json
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from datetime import datetime
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from freezegun import freeze_time
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from app import statsd_client, encryption
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from app.celery.process_ses_receipts_tasks import process_ses_results
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from app.celery.research_mode_tasks import ses_hard_bounce_callback, ses_soft_bounce_callback, ses_notification_callback
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from app.celery.service_callback_tasks import create_delivery_status_callback_data
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from app.dao.notifications_dao import get_notification_by_id
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from app.models import Complaint, Notification
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from app.notifications.notifications_ses_callback import remove_emails_from_complaint, remove_emails_from_bounce
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from tests.app.db import (
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create_notification,
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ses_complaint_callback,
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create_service_callback_api,
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)
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from tests.app.conftest import sample_notification as create_sample_notification
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def test_process_ses_results(sample_email_template):
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create_notification(sample_email_template, reference='ref1', sent_at=datetime.utcnow(), status='sending')
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assert process_ses_results(response=ses_notification_callback(reference='ref1'))
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def test_process_ses_results_retry_called(sample_email_template, notify_db, mocker):
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create_notification(sample_email_template, reference='ref1', sent_at=datetime.utcnow(), status='sending')
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mocker.patch("app.dao.notifications_dao._update_notification_status", side_effect=Exception("EXPECTED"))
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mocked = mocker.patch('app.celery.process_ses_receipts_tasks.process_ses_results.retry')
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process_ses_results(response=ses_notification_callback(reference='ref1'))
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assert mocked.call_count != 0
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def test_process_ses_results_in_complaint(sample_email_template, mocker):
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notification = create_notification(template=sample_email_template, reference='ref1')
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mocked = mocker.patch("app.dao.notifications_dao.update_notification_status_by_reference")
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process_ses_results(response=ses_complaint_callback())
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assert mocked.call_count == 0
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complaints = Complaint.query.all()
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assert len(complaints) == 1
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assert complaints[0].notification_id == notification.id
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def test_remove_emails_from_complaint():
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test_json = json.loads(ses_complaint_callback()['Message'])
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remove_emails_from_complaint(test_json)
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assert "recipient1@example.com" not in json.dumps(test_json)
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def test_remove_email_from_bounce():
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test_json = json.loads(ses_hard_bounce_callback(reference='ref1')['Message'])
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remove_emails_from_bounce(test_json)
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assert "bounce@simulator.amazonses.com" not in json.dumps(test_json)
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def test_ses_callback_should_update_notification_status(
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client,
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notify_db,
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notify_db_session,
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sample_email_template,
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mocker):
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with freeze_time('2001-01-01T12:00:00'):
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mocker.patch('app.statsd_client.incr')
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mocker.patch('app.statsd_client.timing_with_dates')
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_delivery_status_to_service.apply_async'
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)
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notification = create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref',
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status='sending',
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sent_at=datetime.utcnow()
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)
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callback_api = create_service_callback_api(service=sample_email_template.service,
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url="https://original_url.com")
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assert get_notification_by_id(notification.id).status == 'sending'
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assert process_ses_results(ses_notification_callback(reference='ref'))
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assert get_notification_by_id(notification.id).status == 'delivered'
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statsd_client.timing_with_dates.assert_any_call(
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"callback.ses.elapsed-time", datetime.utcnow(), notification.sent_at
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)
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statsd_client.incr.assert_any_call("callback.ses.delivered")
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updated_notification = Notification.query.get(notification.id)
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encrypted_data = create_delivery_status_callback_data(updated_notification, callback_api)
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send_mock.assert_called_once_with([str(notification.id), encrypted_data], queue="service-callbacks")
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def test_ses_callback_should_not_update_notification_status_if_already_delivered(sample_email_template, mocker):
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mock_dup = mocker.patch('app.celery.process_ses_receipts_tasks.notifications_dao._duplicate_update_warning')
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mock_upd = mocker.patch('app.celery.process_ses_receipts_tasks.notifications_dao._update_notification_status')
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notification = create_notification(template=sample_email_template, reference='ref', status='delivered')
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assert process_ses_results(ses_notification_callback(reference='ref')) is None
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assert get_notification_by_id(notification.id).status == 'delivered'
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mock_dup.assert_called_once_with(notification, 'delivered')
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assert mock_upd.call_count == 0
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def test_ses_callback_should_retry_if_notification_is_new(client, notify_db, mocker):
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mock_retry = mocker.patch('app.celery.process_ses_receipts_tasks.process_ses_results.retry')
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mock_logger = mocker.patch('app.celery.process_ses_receipts_tasks.current_app.logger.error')
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with freeze_time('2017-11-17T12:14:03.646Z'):
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assert process_ses_results(ses_notification_callback(reference='ref')) is None
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assert mock_logger.call_count == 0
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assert mock_retry.call_count == 1
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def test_ses_callback_should_log_if_notification_is_missing(client, notify_db, mocker):
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mock_retry = mocker.patch('app.celery.process_ses_receipts_tasks.process_ses_results.retry')
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mock_logger = mocker.patch('app.celery.process_ses_receipts_tasks.current_app.logger.error')
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with freeze_time('2017-11-17T12:34:03.646Z'):
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assert process_ses_results(ses_notification_callback(reference='ref')) is None
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assert mock_retry.call_count == 0
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mock_logger.assert_called_once_with('notification not found for reference: ref (update to delivered)')
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def test_ses_callback_should_not_retry_if_notification_is_old(client, notify_db, mocker):
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mock_retry = mocker.patch('app.celery.process_ses_receipts_tasks.process_ses_results.retry')
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mock_logger = mocker.patch('app.celery.process_ses_receipts_tasks.current_app.logger.error')
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with freeze_time('2017-11-21T12:14:03.646Z'):
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assert process_ses_results(ses_notification_callback(reference='ref')) is None
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assert mock_logger.call_count == 0
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assert mock_retry.call_count == 0
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def test_ses_callback_does_not_call_send_delivery_status_if_no_db_entry(
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client,
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notify_db,
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notify_db_session,
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sample_email_template,
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mocker):
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with freeze_time('2001-01-01T12:00:00'):
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_delivery_status_to_service.apply_async'
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)
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notification = create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref',
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status='sending',
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sent_at=datetime.utcnow()
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)
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assert get_notification_by_id(notification.id).status == 'sending'
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assert process_ses_results(ses_notification_callback(reference='ref'))
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assert get_notification_by_id(notification.id).status == 'delivered'
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send_mock.assert_not_called()
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def test_ses_callback_should_update_multiple_notification_status_sent(
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client,
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notify_db,
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notify_db_session,
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sample_email_template,
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mocker):
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_delivery_status_to_service.apply_async'
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)
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create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref1',
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sent_at=datetime.utcnow(),
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status='sending')
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create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref2',
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sent_at=datetime.utcnow(),
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status='sending')
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create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref3',
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sent_at=datetime.utcnow(),
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status='sending')
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create_service_callback_api(service=sample_email_template.service, url="https://original_url.com")
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assert process_ses_results(ses_notification_callback(reference='ref1'))
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assert process_ses_results(ses_notification_callback(reference='ref2'))
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assert process_ses_results(ses_notification_callback(reference='ref3'))
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assert send_mock.called
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def test_ses_callback_should_set_status_to_temporary_failure(client,
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notify_db,
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notify_db_session,
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sample_email_template,
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mocker):
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_delivery_status_to_service.apply_async'
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)
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notification = create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref',
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status='sending',
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sent_at=datetime.utcnow()
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)
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create_service_callback_api(service=notification.service, url="https://original_url.com")
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assert get_notification_by_id(notification.id).status == 'sending'
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assert process_ses_results(ses_soft_bounce_callback(reference='ref'))
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assert get_notification_by_id(notification.id).status == 'temporary-failure'
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assert send_mock.called
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def test_ses_callback_should_set_status_to_permanent_failure(client,
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notify_db,
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notify_db_session,
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sample_email_template,
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mocker):
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_delivery_status_to_service.apply_async'
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)
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notification = create_sample_notification(
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notify_db,
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notify_db_session,
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template=sample_email_template,
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reference='ref',
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status='sending',
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sent_at=datetime.utcnow()
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)
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create_service_callback_api(service=sample_email_template.service, url="https://original_url.com")
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assert get_notification_by_id(notification.id).status == 'sending'
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assert process_ses_results(ses_hard_bounce_callback(reference='ref'))
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assert get_notification_by_id(notification.id).status == 'permanent-failure'
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assert send_mock.called
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def test_ses_callback_should_send_on_complaint_to_user_callback_api(sample_email_template, mocker):
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send_mock = mocker.patch(
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'app.celery.service_callback_tasks.send_complaint_to_service.apply_async'
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)
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create_service_callback_api(
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service=sample_email_template.service, url="https://original_url.com", callback_type="complaint"
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)
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notification = create_notification(
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template=sample_email_template, reference='ref1', sent_at=datetime.utcnow(), status='sending'
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)
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response = ses_complaint_callback()
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assert process_ses_results(response)
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assert send_mock.call_count == 1
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assert encryption.decrypt(send_mock.call_args[0][0][0]) == {
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'complaint_date': '2018-06-05T13:59:58.000000Z',
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'complaint_id': str(Complaint.query.one().id),
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'notification_id': str(notification.id),
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'reference': None,
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'service_callback_api_bearer_token': 'some_super_secret',
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'service_callback_api_url': 'https://original_url.com',
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'to': 'recipient1@example.com'
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}
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