import os import logging import unittest from datetime import datetime, timedelta from time import mktime, sleep import requests from django.test import SimpleTestCase from django.test.utils import override_settings from anymail.exceptions import AnymailAPIError from anymail.message import AnymailMessage from .utils import AnymailTestMixin, sample_image_path, RUN_LIVE_TESTS MAILGUN_TEST_API_KEY = os.getenv('MAILGUN_TEST_API_KEY') MAILGUN_TEST_DOMAIN = os.getenv('MAILGUN_TEST_DOMAIN') @unittest.skipUnless(RUN_LIVE_TESTS, "RUN_LIVE_TESTS disabled in this environment") @unittest.skipUnless(MAILGUN_TEST_API_KEY and MAILGUN_TEST_DOMAIN, "Set MAILGUN_TEST_API_KEY and MAILGUN_TEST_DOMAIN environment variables " "to run Mailgun integration tests") @override_settings(ANYMAIL={'MAILGUN_API_KEY': MAILGUN_TEST_API_KEY, 'MAILGUN_SENDER_DOMAIN': MAILGUN_TEST_DOMAIN, 'MAILGUN_SEND_DEFAULTS': {'esp_extra': {'o:testmode': 'yes'}}}, EMAIL_BACKEND="anymail.backends.mailgun.EmailBackend") class MailgunBackendIntegrationTests(SimpleTestCase, AnymailTestMixin): """Mailgun API integration tests These tests run against the **live** Mailgun API, using the environment variable `MAILGUN_TEST_API_KEY` as the API key and `MAILGUN_TEST_DOMAIN` as the sender domain. If those variables are not set, these tests won't run. """ def setUp(self): super(MailgunBackendIntegrationTests, self).setUp() self.message = AnymailMessage('Anymail integration test', 'Text content', 'from@example.com', ['to@example.com']) self.message.attach_alternative('

HTML content

', "text/html") def fetch_mailgun_events(self, message_id, event=None, initial_delay=2, retry_delay=2, max_retries=5): """Return list of Mailgun events related to message_id""" url = "https://api.mailgun.net/v3/%s/events" % MAILGUN_TEST_DOMAIN auth = ("api", MAILGUN_TEST_API_KEY) # Despite the docs, Mailgun's events API actually expects the message-id # without the <...> brackets (so, not exactly "as returned by the messages API") # https://documentation.mailgun.com/api-events.html#filter-field params = {'message-id': message_id[1:-1]} # strip <...> if event is not None: params['event'] = event # It can take a few seconds for the events to show up # in Mailgun's logs, so retry a few times if necessary: sleep(initial_delay) response = None for retry in range(max_retries): if retry > 0: sleep(retry_delay) response = requests.get(url, auth=auth, params=params) if 200 == response.status_code: items = response.json()["items"] if len(items) > 0: return items # else no matching events found yet, so try again after delay elif 500 <= response.status_code < 600: # server error (hopefully transient); try again after delay pass elif 403 == response.status_code: # "forbidden": this may be related to API throttling; try again after delay pass else: response.raise_for_status() # Max retries exceeded: if response is not None and 200 != response.status_code: logging.warning("Ignoring Mailgun events API error %d:\n%s" % (response.status_code, response.text)) return None def test_simple_send(self): # Example of getting the Mailgun send status and message id from the message sent_count = self.message.send() self.assertEqual(sent_count, 1) anymail_status = self.message.anymail_status sent_status = anymail_status.recipients['to@example.com'].status message_id = anymail_status.recipients['to@example.com'].message_id self.assertEqual(sent_status, 'queued') # Mailgun always queues self.assertGreater(len(message_id), 0) # don't know what it'll be, but it should exist self.assertEqual(anymail_status.status, {sent_status}) # set of all recipient statuses self.assertEqual(anymail_status.message_id, message_id) def test_all_options(self): send_at = datetime.now().replace(microsecond=0) + timedelta(minutes=2) send_at_timestamp = mktime(send_at.timetuple()) # python3: send_at.timestamp() message = AnymailMessage( subject="Anymail all-options integration test", body="This is the text body", from_email="Test From ", to=["to1@example.com", "Recipient 2 "], cc=["cc1@example.com", "Copy 2 "], bcc=["bcc1@example.com", "Blind Copy 2 "], reply_to=["reply1@example.com", "Reply 2 "], headers={"X-Anymail-Test": "value"}, metadata={"meta1": "simple string", "meta2": 2}, send_at=send_at, tags=["tag 1", "tag 2"], track_clicks=False, track_opens=True, ) message.attach("attachment1.txt", "Here is some\ntext for you", "text/plain") message.attach("attachment2.csv", "ID,Name\n1,3", "text/csv") cid = message.attach_inline_image_file(sample_image_path(), domain=MAILGUN_TEST_DOMAIN) message.attach_alternative( "
This is the html body
" % cid, "text/html") message.send() self.assertEqual(message.anymail_status.status, {'queued'}) # Mailgun always queues message_id = message.anymail_status.message_id events = self.fetch_mailgun_events(message_id, event="accepted") if events is None: self.skipTest("No Mailgun 'accepted' event after 30sec -- can't complete this test") return event = events.pop() self.assertCountEqual(event["tags"], ["tag 1", "tag 2"]) # don't care about order self.assertEqual(event["user-variables"], {"meta1": "simple string", "meta2": "2"}) # all metadata values become strings self.assertEqual(event["message"]["scheduled-for"], send_at_timestamp) self.assertCountEqual(event["message"]["recipients"], ['to1@example.com', 'to2@example.com', 'cc1@example.com', 'cc2@example.com', 'bcc1@example.com', 'bcc2@example.com']) # don't care about order headers = event["message"]["headers"] self.assertEqual(headers["from"], "Test From ") self.assertEqual(headers["to"], "to1@example.com, Recipient 2 ") self.assertEqual(headers["subject"], "Anymail all-options integration test") attachments = event["message"]["attachments"] self.assertEqual(len(attachments), 2) # because inline image shouldn't be an attachment self.assertEqual(attachments[0]["filename"], "attachment1.txt") self.assertEqual(attachments[0]["content-type"], "text/plain") self.assertEqual(attachments[1]["filename"], "attachment2.csv") self.assertEqual(attachments[1]["content-type"], "text/csv") # No other fields are verifiable from the event data. # (We could try fetching the message from event["storage"]["url"] # to verify content and other headers.) def test_invalid_from(self): self.message.from_email = 'webmaster' with self.assertRaises(AnymailAPIError) as cm: self.message.send() err = cm.exception self.assertEqual(err.status_code, 400) self.assertIn("'from' parameter is not a valid address", str(err)) @override_settings(ANYMAIL={'MAILGUN_API_KEY': "Hey, that's not an API key", 'MAILGUN_SENDER_DOMAIN': MAILGUN_TEST_DOMAIN, 'MAILGUN_SEND_DEFAULTS': {'esp_extra': {'o:testmode': 'yes'}}}) def test_invalid_api_key(self): with self.assertRaises(AnymailAPIError) as cm: self.message.send() err = cm.exception self.assertEqual(err.status_code, 401) # Mailgun doesn't offer any additional explanation in its response body # self.assertIn("Forbidden", str(err))