import logging import os import unittest from datetime import datetime, timedelta from email.utils import formataddr from time import sleep import requests from django.test import SimpleTestCase, override_settings, tag from anymail.exceptions import AnymailAPIError from anymail.message import AnymailMessage from .utils import AnymailTestMixin, sample_image_path ANYMAIL_TEST_MAILGUN_API_KEY = os.getenv("ANYMAIL_TEST_MAILGUN_API_KEY") ANYMAIL_TEST_MAILGUN_DOMAIN = os.getenv("ANYMAIL_TEST_MAILGUN_DOMAIN") @tag("mailgun", "live") @unittest.skipUnless( ANYMAIL_TEST_MAILGUN_API_KEY and ANYMAIL_TEST_MAILGUN_DOMAIN, "Set ANYMAIL_TEST_MAILGUN_API_KEY and ANYMAIL_TEST_MAILGUN_DOMAIN environment" " variables to run Mailgun integration tests", ) @override_settings( ANYMAIL={ "MAILGUN_API_KEY": ANYMAIL_TEST_MAILGUN_API_KEY, "MAILGUN_SENDER_DOMAIN": ANYMAIL_TEST_MAILGUN_DOMAIN, "MAILGUN_SEND_DEFAULTS": {"esp_extra": {"o:testmode": "yes"}}, }, EMAIL_BACKEND="anymail.backends.mailgun.EmailBackend", ) class MailgunBackendIntegrationTests(AnymailTestMixin, SimpleTestCase): """Mailgun API integration tests These tests run against the **live** Mailgun API, using the environment variable `ANYMAIL_TEST_MAILGUN_API_KEY` as the API key and `ANYMAIL_TEST_MAILGUN_DOMAIN` as the sender domain. If those variables are not set, these tests won't run. """ def setUp(self): super().setUp() self.from_email = "from@%s" % ANYMAIL_TEST_MAILGUN_DOMAIN self.message = AnymailMessage( "Anymail Mailgun integration test", "Text content", self.from_email, ["test+to1@anymail.dev"], ) 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" % ANYMAIL_TEST_MAILGUN_DOMAIN auth = ("api", ANYMAIL_TEST_MAILGUN_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["test+to1@anymail.dev"].status message_id = anymail_status.recipients["test+to1@anymail.dev"].message_id self.assertEqual(sent_status, "queued") # Mailgun always queues # don't know what it'll be, but it should exist: self.assertGreater(len(message_id), 0) # set of all recipient statuses: self.assertEqual(anymail_status.status, {sent_status}) 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 = send_at.timestamp() from_email = formataddr(("Test From, with comma", self.from_email)) message = AnymailMessage( subject="Anymail Mailgun all-options integration test", body="This is the text body", from_email=from_email, to=["test+to1@anymail.dev", "Recipient 2 "], cc=["test+cc1@anymail.dev", "Copy 2 "], bcc=["test+bcc1@anymail.dev", "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("vedhæftet fil.csv", "ID,Name\n1,3", "text/csv") cid = message.attach_inline_image_file( sample_image_path(), domain=ANYMAIL_TEST_MAILGUN_DOMAIN ) message.attach_alternative( "
This is the html body
" % cid, "text/html", ) message.send() # Mailgun always queues: self.assertEqual(message.anymail_status.status, {"queued"}) 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() # don't care about order: self.assertCountEqual(event["tags"], ["tag 1", "tag 2"]) # all metadata values become strings: self.assertEqual( event["user-variables"], {"meta1": "simple string", "meta2": "2"} ) self.assertEqual(event["message"]["scheduled-for"], send_at_timestamp) self.assertIn( event["recipient"], [ "test+to1@anymail.dev", "test+to2@anymail.dev", "test+cc1@anymail.dev", "test+cc2@anymail.dev", "test+bcc1@anymail.dev", "test+bcc2@anymail.dev", ], ) headers = event["message"]["headers"] self.assertEqual(headers["from"], from_email) self.assertEqual( headers["to"], "test+to1@anymail.dev, Recipient 2 " ) self.assertEqual( headers["subject"], "Anymail Mailgun all-options integration test" ) attachments = event["message"]["attachments"] if len(attachments) == 3: # The inline attachment shouldn't be in the event message.attachments array, # but sometimes is included for the accepted event (see #172) inline_attachment = attachments.pop(0) self.assertEqual(inline_attachment["filename"], cid) self.assertEqual(inline_attachment["content-type"], "image/png") self.assertEqual(len(attachments), 2) self.assertEqual(attachments[0]["filename"], "attachment1.txt") self.assertEqual(attachments[0]["content-type"], "text/plain") self.assertEqual(attachments[1]["filename"], "vedhæftet fil.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_per_recipient_options(self): message = AnymailMessage( from_email=formataddr(("Test From", self.from_email)), to=["test+to1@anymail.dev", '"Recipient 2" '], subject="Anymail Mailgun per-recipient options test", body="This is the text body", merge_metadata={ "test+to1@anymail.dev": {"meta1": "one", "meta2": "two"}, "test+to2@anymail.dev": {"meta1": "recipient 2"}, }, headers={ "List-Unsubscribe-Post": "List-Unsubscribe=One-Click", "List-Unsubscribe": "", "X-Custom-Header": "default", }, merge_headers={ "test+to1@anymail.dev": { "List-Unsubscribe": "", "X-Custom-Header": "custom", }, "test+to2@anymail.dev": { "List-Unsubscribe": "", }, }, ) message.send() recipient_status = message.anymail_status.recipients self.assertEqual(recipient_status["test+to1@anymail.dev"].status, "queued") self.assertEqual(recipient_status["test+to2@anymail.dev"].status, "queued") def test_stored_template(self): message = AnymailMessage( # name of a real template named in Anymail's Mailgun test account: template_id="test-template", # Mailgun templates don't define subject: subject="Your order %recipient.order%", # Mailgun templates don't define sender: from_email=formataddr(("Test From>", self.from_email)), to=["test+to1@anymail.dev"], # metadata and merge_data must not have any conflicting keys # when using template_id: metadata={"meta1": "simple string", "meta2": 2}, merge_data={ "test+to1@anymail.dev": { "name": "Test Recipient", } }, merge_global_data={ "order": "12345", }, ) message.send() recipient_status = message.anymail_status.recipients self.assertEqual(recipient_status["test+to1@anymail.dev"].status, "queued") # As of Anymail 0.10, this test is no longer possible, because # Anymail now raises AnymailInvalidAddress without even calling Mailgun # 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": ANYMAIL_TEST_MAILGUN_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))