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))