import asyncore import base64 import mimetypes import os import shutil import smtpd import sys import tempfile import threading from email import charset, message_from_binary_file, message_from_bytes from email.header import Header from email.mime.text import MIMEText from email.utils import parseaddr from io import StringIO from smtplib import SMTP, SMTPAuthenticationError, SMTPException from ssl import SSLError from django.core import mail from django.core.mail import ( EmailMessage, EmailMultiAlternatives, mail_admins, mail_managers, send_mail, send_mass_mail, ) from django.core.mail.backends import console, dummy, filebased, locmem, smtp from django.core.mail.message import BadHeaderError, sanitize_address from django.test import SimpleTestCase, override_settings from django.test.utils import requires_tz_support from django.utils.translation import gettext_lazy class HeadersCheckMixin: def assertMessageHasHeaders(self, message, headers): """ Asserts that the `message` has all `headers`. message: can be an instance of an email.Message subclass or a string with the contents of an email message. headers: should be a set of (header-name, header-value) tuples. """ if isinstance(message, bytes): message = message_from_bytes(message) msg_headers = set(message.items()) self.assertTrue(headers.issubset(msg_headers), msg='Message is missing ' 'the following headers: %s' % (headers - msg_headers),) class MailTests(HeadersCheckMixin, SimpleTestCase): """ Non-backend specific tests. """ def get_decoded_attachments(self, django_message): """ Encode the specified django.core.mail.message.EmailMessage, then decode it using Python's email.parser module and, for each attachment of the message, return a list of tuples with (filename, content, mimetype). """ msg_bytes = django_message.message().as_bytes() email_message = message_from_bytes(msg_bytes) def iter_attachments(): for i in email_message.walk(): if i.get_content_disposition() == 'attachment': filename = i.get_filename() content = i.get_payload(decode=True) mimetype = i.get_content_type() yield filename, content, mimetype return list(iter_attachments()) def test_ascii(self): email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com']) message = email.message() self.assertEqual(message['Subject'], 'Subject') self.assertEqual(message.get_payload(), 'Content') self.assertEqual(message['From'], 'from@example.com') self.assertEqual(message['To'], 'to@example.com') def test_multiple_recipients(self): email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com', 'other@example.com']) message = email.message() self.assertEqual(message['Subject'], 'Subject') self.assertEqual(message.get_payload(), 'Content') self.assertEqual(message['From'], 'from@example.com') self.assertEqual(message['To'], 'to@example.com, other@example.com') def test_header_omitted_for_no_to_recipients(self): message = EmailMessage('Subject', 'Content', 'from@example.com', cc=['cc@example.com']).message() self.assertNotIn('To', message) def test_recipients_with_empty_strings(self): """ Empty strings in various recipient arguments are always stripped off the final recipient list. """ email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com', ''], cc=['cc@example.com', ''], bcc=['', 'bcc@example.com'], reply_to=['', None], ) self.assertEqual( email.recipients(), ['to@example.com', 'cc@example.com', 'bcc@example.com'] ) def test_cc(self): """Regression test for #7722""" email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com'], cc=['cc@example.com']) message = email.message() self.assertEqual(message['Cc'], 'cc@example.com') self.assertEqual(email.recipients(), ['to@example.com', 'cc@example.com']) # Test multiple CC with multiple To email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com', 'other@example.com'], cc=['cc@example.com', 'cc.other@example.com'] ) message = email.message() self.assertEqual(message['Cc'], 'cc@example.com, cc.other@example.com') self.assertEqual( email.recipients(), ['to@example.com', 'other@example.com', 'cc@example.com', 'cc.other@example.com'] ) # Testing with Bcc email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com', 'other@example.com'], cc=['cc@example.com', 'cc.other@example.com'], bcc=['bcc@example.com'] ) message = email.message() self.assertEqual(message['Cc'], 'cc@example.com, cc.other@example.com') self.assertEqual( email.recipients(), ['to@example.com', 'other@example.com', 'cc@example.com', 'cc.other@example.com', 'bcc@example.com'] ) def test_cc_headers(self): message = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], cc=['foo@example.com'], headers={'Cc': 'override@example.com'}, ).message() self.assertEqual(message['Cc'], 'override@example.com') def test_cc_in_headers_only(self): message = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'Cc': 'foo@example.com'}, ).message() self.assertEqual(message['Cc'], 'foo@example.com') def test_reply_to(self): email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com'], reply_to=['reply_to@example.com'], ) message = email.message() self.assertEqual(message['Reply-To'], 'reply_to@example.com') email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com'], reply_to=['reply_to1@example.com', 'reply_to2@example.com'] ) message = email.message() self.assertEqual(message['Reply-To'], 'reply_to1@example.com, reply_to2@example.com') def test_recipients_as_tuple(self): email = EmailMessage( 'Subject', 'Content', 'from@example.com', ('to@example.com', 'other@example.com'), cc=('cc@example.com', 'cc.other@example.com'), bcc=('bcc@example.com',) ) message = email.message() self.assertEqual(message['Cc'], 'cc@example.com, cc.other@example.com') self.assertEqual( email.recipients(), ['to@example.com', 'other@example.com', 'cc@example.com', 'cc.other@example.com', 'bcc@example.com'] ) def test_recipients_as_string(self): with self.assertRaisesMessage(TypeError, '"to" argument must be a list or tuple'): EmailMessage(to='foo@example.com') with self.assertRaisesMessage(TypeError, '"cc" argument must be a list or tuple'): EmailMessage(cc='foo@example.com') with self.assertRaisesMessage(TypeError, '"bcc" argument must be a list or tuple'): EmailMessage(bcc='foo@example.com') with self.assertRaisesMessage(TypeError, '"reply_to" argument must be a list or tuple'): EmailMessage(reply_to='reply_to@example.com') def test_header_injection(self): email = EmailMessage('Subject\nInjection Test', 'Content', 'from@example.com', ['to@example.com']) with self.assertRaises(BadHeaderError): email.message() email = EmailMessage( gettext_lazy('Subject\nInjection Test'), 'Content', 'from@example.com', ['to@example.com'] ) with self.assertRaises(BadHeaderError): email.message() def test_space_continuation(self): """ Test for space continuation character in long (ASCII) subject headers (#7747) """ email = EmailMessage( 'Long subject lines that get wrapped should contain a space ' 'continuation character to get expected behavior in Outlook and Thunderbird', 'Content', 'from@example.com', ['to@example.com'] ) message = email.message() self.assertEqual( message['Subject'].encode(), b'Long subject lines that get wrapped should contain a space continuation\n' b' character to get expected behavior in Outlook and Thunderbird' ) def test_message_header_overrides(self): """ Specifying dates or message-ids in the extra headers overrides the default values (#9233) """ headers = {"date": "Fri, 09 Nov 2001 01:08:47 -0000", "Message-ID": "foo"} email = EmailMessage('subject', 'content', 'from@example.com', ['to@example.com'], headers=headers) self.assertMessageHasHeaders(email.message(), { ('Content-Transfer-Encoding', '7bit'), ('Content-Type', 'text/plain; charset="utf-8"'), ('From', 'from@example.com'), ('MIME-Version', '1.0'), ('Message-ID', 'foo'), ('Subject', 'subject'), ('To', 'to@example.com'), ('date', 'Fri, 09 Nov 2001 01:08:47 -0000'), }) def test_from_header(self): """ Make sure we can manually set the From header (#9214) """ email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) message = email.message() self.assertEqual(message['From'], 'from@example.com') def test_to_header(self): """ Make sure we can manually set the To header (#17444) """ email = EmailMessage('Subject', 'Content', 'bounce@example.com', ['list-subscriber@example.com', 'list-subscriber2@example.com'], headers={'To': 'mailing-list@example.com'}) message = email.message() self.assertEqual(message['To'], 'mailing-list@example.com') self.assertEqual(email.to, ['list-subscriber@example.com', 'list-subscriber2@example.com']) # If we don't set the To header manually, it should default to the `to` argument to the constructor email = EmailMessage('Subject', 'Content', 'bounce@example.com', ['list-subscriber@example.com', 'list-subscriber2@example.com']) message = email.message() self.assertEqual(message['To'], 'list-subscriber@example.com, list-subscriber2@example.com') self.assertEqual(email.to, ['list-subscriber@example.com', 'list-subscriber2@example.com']) def test_to_in_headers_only(self): message = EmailMessage( 'Subject', 'Content', 'bounce@example.com', headers={'To': 'to@example.com'}, ).message() self.assertEqual(message['To'], 'to@example.com') def test_reply_to_header(self): """ Specifying 'Reply-To' in headers should override reply_to. """ email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], reply_to=['foo@example.com'], headers={'Reply-To': 'override@example.com'}, ) message = email.message() self.assertEqual(message['Reply-To'], 'override@example.com') def test_reply_to_in_headers_only(self): message = EmailMessage( 'Subject', 'Content', 'from@example.com', ['to@example.com'], headers={'Reply-To': 'reply_to@example.com'}, ).message() self.assertEqual(message['Reply-To'], 'reply_to@example.com') def test_multiple_message_call(self): """ Regression for #13259 - Make sure that headers are not changed when calling EmailMessage.message() """ email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) message = email.message() self.assertEqual(message['From'], 'from@example.com') message = email.message() self.assertEqual(message['From'], 'from@example.com') def test_unicode_address_header(self): """ Regression for #11144 - When a to/from/cc header contains unicode, make sure the email addresses are parsed correctly (especially with regards to commas) """ email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['"Firstname Sürname" ', 'other@example.com'], ) self.assertEqual( email.message()['To'], '=?utf-8?q?Firstname_S=C3=BCrname?= , other@example.com' ) email = EmailMessage( 'Subject', 'Content', 'from@example.com', ['"Sürname, Firstname" ', 'other@example.com'], ) self.assertEqual( email.message()['To'], '=?utf-8?q?S=C3=BCrname=2C_Firstname?= , other@example.com' ) def test_unicode_headers(self): email = EmailMessage( 'Gżegżółka', 'Content', 'from@example.com', ['to@example.com'], headers={ 'Sender': '"Firstname Sürname" ', 'Comments': 'My Sürname is non-ASCII', }, ) message = email.message() self.assertEqual(message['Subject'], '=?utf-8?b?R8W8ZWfFvMOzxYJrYQ==?=') self.assertEqual(message['Sender'], '=?utf-8?q?Firstname_S=C3=BCrname?= ') self.assertEqual(message['Comments'], '=?utf-8?q?My_S=C3=BCrname_is_non-ASCII?=') def test_safe_mime_multipart(self): """ Make sure headers can be set with a different encoding than utf-8 in SafeMIMEMultipart as well """ headers = {"Date": "Fri, 09 Nov 2001 01:08:47 -0000", "Message-ID": "foo"} from_email, to = 'from@example.com', '"Sürname, Firstname" ' text_content = 'This is an important message.' html_content = '

This is an important message.

' msg = EmailMultiAlternatives('Message from Firstname Sürname', text_content, from_email, [to], headers=headers) msg.attach_alternative(html_content, "text/html") msg.encoding = 'iso-8859-1' self.assertEqual(msg.message()['To'], '=?iso-8859-1?q?S=FCrname=2C_Firstname?= ') self.assertEqual(msg.message()['Subject'], '=?iso-8859-1?q?Message_from_Firstname_S=FCrname?=') def test_safe_mime_multipart_with_attachments(self): """ EmailMultiAlternatives includes alternatives if the body is empty and it has attachments. """ msg = EmailMultiAlternatives(body='') html_content = '

This is html

' msg.attach_alternative(html_content, 'text/html') msg.attach('example.txt', 'Text file content', 'text/plain') self.assertIn(html_content, msg.message().as_string()) def test_none_body(self): msg = EmailMessage('subject', None, 'from@example.com', ['to@example.com']) self.assertEqual(msg.body, '') self.assertEqual(msg.message().get_payload(), '') def test_encoding(self): """ Regression for #12791 - Encode body correctly with other encodings than utf-8 """ email = EmailMessage('Subject', 'Firstname Sürname is a great guy.', 'from@example.com', ['other@example.com']) email.encoding = 'iso-8859-1' message = email.message() self.assertMessageHasHeaders(message, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="iso-8859-1"'), ('Content-Transfer-Encoding', 'quoted-printable'), ('Subject', 'Subject'), ('From', 'from@example.com'), ('To', 'other@example.com')}) self.assertEqual(message.get_payload(), 'Firstname S=FCrname is a great guy.') # Make sure MIME attachments also works correctly with other encodings than utf-8 text_content = 'Firstname Sürname is a great guy.' html_content = '

Firstname Sürname is a great guy.

' msg = EmailMultiAlternatives('Subject', text_content, 'from@example.com', ['to@example.com']) msg.encoding = 'iso-8859-1' msg.attach_alternative(html_content, "text/html") payload0 = msg.message().get_payload(0) self.assertMessageHasHeaders(payload0, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="iso-8859-1"'), ('Content-Transfer-Encoding', 'quoted-printable')}) self.assertTrue(payload0.as_bytes().endswith(b'\n\nFirstname S=FCrname is a great guy.')) payload1 = msg.message().get_payload(1) self.assertMessageHasHeaders(payload1, { ('MIME-Version', '1.0'), ('Content-Type', 'text/html; charset="iso-8859-1"'), ('Content-Transfer-Encoding', 'quoted-printable')}) self.assertTrue( payload1.as_bytes().endswith(b'\n\n

Firstname S=FCrname is a great guy.

') ) def test_attachments(self): """Regression test for #9367""" headers = {"Date": "Fri, 09 Nov 2001 01:08:47 -0000", "Message-ID": "foo"} subject, from_email, to = 'hello', 'from@example.com', 'to@example.com' text_content = 'This is an important message.' html_content = '

This is an important message.

' msg = EmailMultiAlternatives(subject, text_content, from_email, [to], headers=headers) msg.attach_alternative(html_content, "text/html") msg.attach("an attachment.pdf", b"%PDF-1.4.%...", mimetype="application/pdf") msg_bytes = msg.message().as_bytes() message = message_from_bytes(msg_bytes) self.assertTrue(message.is_multipart()) self.assertEqual(message.get_content_type(), 'multipart/mixed') self.assertEqual(message.get_default_type(), 'text/plain') payload = message.get_payload() self.assertEqual(payload[0].get_content_type(), 'multipart/alternative') self.assertEqual(payload[1].get_content_type(), 'application/pdf') def test_attachments_two_tuple(self): msg = EmailMessage(attachments=[('filename1', 'content1')]) filename, content, mimetype = self.get_decoded_attachments(msg)[0] self.assertEqual(filename, 'filename1') self.assertEqual(content, b'content1') self.assertEqual(mimetype, 'application/octet-stream') def test_attachments_MIMEText(self): txt = MIMEText('content1') msg = EmailMessage(attachments=[txt]) payload = msg.message().get_payload() self.assertEqual(payload[0], txt) def test_non_ascii_attachment_filename(self): """Regression test for #14964""" headers = {"Date": "Fri, 09 Nov 2001 01:08:47 -0000", "Message-ID": "foo"} subject, from_email, to = 'hello', 'from@example.com', 'to@example.com' content = 'This is the message.' msg = EmailMessage(subject, content, from_email, [to], headers=headers) # Unicode in file name msg.attach("une pièce jointe.pdf", b"%PDF-1.4.%...", mimetype="application/pdf") msg_bytes = msg.message().as_bytes() message = message_from_bytes(msg_bytes) payload = message.get_payload() self.assertEqual(payload[1].get_filename(), 'une pièce jointe.pdf') def test_attach_file(self): """ Test attaching a file against different mimetypes and make sure that a file will be attached and sent properly even if an invalid mimetype is specified. """ files = ( # filename, actual mimetype ('file.txt', 'text/plain'), ('file.png', 'image/png'), ('file_txt', None), ('file_png', None), ('file_txt.png', 'image/png'), ('file_png.txt', 'text/plain'), ('file.eml', 'message/rfc822'), ) test_mimetypes = ['text/plain', 'image/png', None] for basename, real_mimetype in files: for mimetype in test_mimetypes: email = EmailMessage('subject', 'body', 'from@example.com', ['to@example.com']) self.assertEqual(mimetypes.guess_type(basename)[0], real_mimetype) self.assertEqual(email.attachments, []) file_path = os.path.join(os.path.dirname(__file__), 'attachments', basename) email.attach_file(file_path, mimetype=mimetype) self.assertEqual(len(email.attachments), 1) self.assertIn(basename, email.attachments[0]) msgs_sent_num = email.send() self.assertEqual(msgs_sent_num, 1) def test_attach_text_as_bytes(self): msg = EmailMessage('subject', 'body', 'from@example.com', ['to@example.com']) msg.attach('file.txt', b'file content') sent_num = msg.send() self.assertEqual(sent_num, 1) filename, content, mimetype = self.get_decoded_attachments(msg)[0] self.assertEqual(filename, 'file.txt') self.assertEqual(content, b'file content') self.assertEqual(mimetype, 'text/plain') def test_attach_utf8_text_as_bytes(self): """ Non-ASCII characters encoded as valid UTF-8 are correctly transported and decoded. """ msg = EmailMessage('subject', 'body', 'from@example.com', ['to@example.com']) msg.attach('file.txt', b'\xc3\xa4') # UTF-8 encoded a umlaut. filename, content, mimetype = self.get_decoded_attachments(msg)[0] self.assertEqual(filename, 'file.txt') self.assertEqual(content, b'\xc3\xa4') self.assertEqual(mimetype, 'text/plain') def test_attach_non_utf8_text_as_bytes(self): """ Binary data that can't be decoded as UTF-8 overrides the MIME type instead of decoding the data. """ msg = EmailMessage('subject', 'body', 'from@example.com', ['to@example.com']) msg.attach('file.txt', b'\xff') # Invalid UTF-8. filename, content, mimetype = self.get_decoded_attachments(msg)[0] self.assertEqual(filename, 'file.txt') # Content should be passed through unmodified. self.assertEqual(content, b'\xff') self.assertEqual(mimetype, 'application/octet-stream') def test_dummy_backend(self): """ Make sure that dummy backends returns correct number of sent messages """ connection = dummy.EmailBackend() email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) self.assertEqual(connection.send_messages([email, email, email]), 3) def test_arbitrary_keyword(self): """ Make sure that get_connection() accepts arbitrary keyword that might be used with custom backends. """ c = mail.get_connection(fail_silently=True, foo='bar') self.assertTrue(c.fail_silently) def test_custom_backend(self): """Test custom backend defined in this suite.""" conn = mail.get_connection('mail.custombackend.EmailBackend') self.assertTrue(hasattr(conn, 'test_outbox')) email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) conn.send_messages([email]) self.assertEqual(len(conn.test_outbox), 1) def test_backend_arg(self): """Test backend argument of mail.get_connection()""" self.assertIsInstance(mail.get_connection('django.core.mail.backends.smtp.EmailBackend'), smtp.EmailBackend) self.assertIsInstance( mail.get_connection('django.core.mail.backends.locmem.EmailBackend'), locmem.EmailBackend ) self.assertIsInstance(mail.get_connection('django.core.mail.backends.dummy.EmailBackend'), dummy.EmailBackend) self.assertIsInstance( mail.get_connection('django.core.mail.backends.console.EmailBackend'), console.EmailBackend ) with tempfile.TemporaryDirectory() as tmp_dir: self.assertIsInstance( mail.get_connection('django.core.mail.backends.filebased.EmailBackend', file_path=tmp_dir), filebased.EmailBackend ) self.assertIsInstance(mail.get_connection(), locmem.EmailBackend) @override_settings( EMAIL_BACKEND='django.core.mail.backends.locmem.EmailBackend', ADMINS=[('nobody', 'nobody@example.com')], MANAGERS=[('nobody', 'nobody@example.com')]) def test_connection_arg(self): """Test connection argument to send_mail(), et. al.""" mail.outbox = [] # Send using non-default connection connection = mail.get_connection('mail.custombackend.EmailBackend') send_mail('Subject', 'Content', 'from@example.com', ['to@example.com'], connection=connection) self.assertEqual(mail.outbox, []) self.assertEqual(len(connection.test_outbox), 1) self.assertEqual(connection.test_outbox[0].subject, 'Subject') connection = mail.get_connection('mail.custombackend.EmailBackend') send_mass_mail([ ('Subject1', 'Content1', 'from1@example.com', ['to1@example.com']), ('Subject2', 'Content2', 'from2@example.com', ['to2@example.com']), ], connection=connection) self.assertEqual(mail.outbox, []) self.assertEqual(len(connection.test_outbox), 2) self.assertEqual(connection.test_outbox[0].subject, 'Subject1') self.assertEqual(connection.test_outbox[1].subject, 'Subject2') connection = mail.get_connection('mail.custombackend.EmailBackend') mail_admins('Admin message', 'Content', connection=connection) self.assertEqual(mail.outbox, []) self.assertEqual(len(connection.test_outbox), 1) self.assertEqual(connection.test_outbox[0].subject, '[Django] Admin message') connection = mail.get_connection('mail.custombackend.EmailBackend') mail_managers('Manager message', 'Content', connection=connection) self.assertEqual(mail.outbox, []) self.assertEqual(len(connection.test_outbox), 1) self.assertEqual(connection.test_outbox[0].subject, '[Django] Manager message') def test_dont_mangle_from_in_body(self): # Regression for #13433 - Make sure that EmailMessage doesn't mangle # 'From ' in message body. email = EmailMessage( 'Subject', 'From the future', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) self.assertNotIn(b'>From the future', email.message().as_bytes()) def test_dont_base64_encode(self): # Ticket #3472 # Shouldn't use Base64 encoding at all msg = EmailMessage( 'Subject', 'UTF-8 encoded body', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) self.assertIn(b'Content-Transfer-Encoding: 7bit', msg.message().as_bytes()) # Ticket #11212 # Shouldn't use quoted printable, should detect it can represent content with 7 bit data msg = EmailMessage( 'Subject', 'Body with only ASCII characters.', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) s = msg.message().as_bytes() self.assertIn(b'Content-Transfer-Encoding: 7bit', s) # Shouldn't use quoted printable, should detect it can represent content with 8 bit data msg = EmailMessage( 'Subject', 'Body with latin characters: àáä.', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) s = msg.message().as_bytes() self.assertIn(b'Content-Transfer-Encoding: 8bit', s) s = msg.message().as_string() self.assertIn('Content-Transfer-Encoding: 8bit', s) msg = EmailMessage( 'Subject', 'Body with non latin characters: А Б В Г Д Е Ж Ѕ З И І К Л М Н О П.', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) s = msg.message().as_bytes() self.assertIn(b'Content-Transfer-Encoding: 8bit', s) s = msg.message().as_string() self.assertIn('Content-Transfer-Encoding: 8bit', s) def test_dont_base64_encode_message_rfc822(self): # Ticket #18967 # Shouldn't use base64 encoding for a child EmailMessage attachment. # Create a child message first child_msg = EmailMessage( 'Child Subject', 'Some body of child message', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) child_s = child_msg.message().as_string() # Now create a parent parent_msg = EmailMessage( 'Parent Subject', 'Some parent body', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) # Attach to parent as a string parent_msg.attach(content=child_s, mimetype='message/rfc822') parent_s = parent_msg.message().as_string() # The child message header is not base64 encoded self.assertIn('Child Subject', parent_s) # Feature test: try attaching email.Message object directly to the mail. parent_msg = EmailMessage( 'Parent Subject', 'Some parent body', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) parent_msg.attach(content=child_msg.message(), mimetype='message/rfc822') parent_s = parent_msg.message().as_string() # The child message header is not base64 encoded self.assertIn('Child Subject', parent_s) # Feature test: try attaching Django's EmailMessage object directly to the mail. parent_msg = EmailMessage( 'Parent Subject', 'Some parent body', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) parent_msg.attach(content=child_msg, mimetype='message/rfc822') parent_s = parent_msg.message().as_string() # The child message header is not base64 encoded self.assertIn('Child Subject', parent_s) def test_custom_utf8_encoding(self): """A UTF-8 charset with a custom body encoding is respected.""" body = 'Body with latin characters: àáä.' msg = EmailMessage('Subject', body, 'bounce@example.com', ['to@example.com']) encoding = charset.Charset('utf-8') encoding.body_encoding = charset.QP msg.encoding = encoding message = msg.message() self.assertMessageHasHeaders(message, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="utf-8"'), ('Content-Transfer-Encoding', 'quoted-printable'), }) self.assertEqual(message.get_payload(), encoding.body_encode(body)) def test_sanitize_address(self): """ Email addresses are properly sanitized. """ # Simple ASCII address - string form self.assertEqual(sanitize_address('to@example.com', 'ascii'), 'to@example.com') self.assertEqual(sanitize_address('to@example.com', 'utf-8'), 'to@example.com') # Simple ASCII address - tuple form self.assertEqual( sanitize_address(('A name', 'to@example.com'), 'ascii'), 'A name ' ) self.assertEqual( sanitize_address(('A name', 'to@example.com'), 'utf-8'), '=?utf-8?q?A_name?= ' ) # Unicode characters are are supported in RFC-6532. self.assertEqual( sanitize_address('tó@example.com', 'utf-8'), '=?utf-8?b?dMOz?=@example.com' ) self.assertEqual( sanitize_address(('Tó Example', 'tó@example.com'), 'utf-8'), '=?utf-8?q?T=C3=B3_Example?= <=?utf-8?b?dMOz?=@example.com>' ) @requires_tz_support class MailTimeZoneTests(SimpleTestCase): @override_settings(EMAIL_USE_LOCALTIME=False, USE_TZ=True, TIME_ZONE='Africa/Algiers') def test_date_header_utc(self): """ EMAIL_USE_LOCALTIME=False creates a datetime in UTC. """ email = EmailMessage('Subject', 'Body', 'bounce@example.com', ['to@example.com']) self.assertTrue(email.message()['Date'].endswith('-0000')) @override_settings(EMAIL_USE_LOCALTIME=True, USE_TZ=True, TIME_ZONE='Africa/Algiers') def test_date_header_localtime(self): """ EMAIL_USE_LOCALTIME=True creates a datetime in the local time zone. """ email = EmailMessage('Subject', 'Body', 'bounce@example.com', ['to@example.com']) self.assertTrue(email.message()['Date'].endswith('+0100')) # Africa/Algiers is UTC+1 class PythonGlobalState(SimpleTestCase): """ Tests for #12422 -- Django smarts (#2472/#11212) with charset of utf-8 text parts shouldn't pollute global email Python package charset registry when django.mail.message is imported. """ def test_utf8(self): txt = MIMEText('UTF-8 encoded body', 'plain', 'utf-8') self.assertIn('Content-Transfer-Encoding: base64', txt.as_string()) def test_7bit(self): txt = MIMEText('Body with only ASCII characters.', 'plain', 'utf-8') self.assertIn('Content-Transfer-Encoding: base64', txt.as_string()) def test_8bit_latin(self): txt = MIMEText('Body with latin characters: àáä.', 'plain', 'utf-8') self.assertIn('Content-Transfer-Encoding: base64', txt.as_string()) def test_8bit_non_latin(self): txt = MIMEText('Body with non latin characters: А Б В Г Д Е Ж Ѕ З И І К Л М Н О П.', 'plain', 'utf-8') self.assertIn('Content-Transfer-Encoding: base64', txt.as_string()) class BaseEmailBackendTests(HeadersCheckMixin): email_backend = None def setUp(self): self.settings_override = override_settings(EMAIL_BACKEND=self.email_backend) self.settings_override.enable() def tearDown(self): self.settings_override.disable() def assertStartsWith(self, first, second): if not first.startswith(second): self.longMessage = True self.assertEqual(first[:len(second)], second, "First string doesn't start with the second.") def get_mailbox_content(self): raise NotImplementedError('subclasses of BaseEmailBackendTests must provide a get_mailbox_content() method') def flush_mailbox(self): raise NotImplementedError('subclasses of BaseEmailBackendTests may require a flush_mailbox() method') def get_the_message(self): mailbox = self.get_mailbox_content() self.assertEqual( len(mailbox), 1, "Expected exactly one message, got %d.\n%r" % (len(mailbox), [m.as_string() for m in mailbox]) ) return mailbox[0] def test_send(self): email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com']) num_sent = mail.get_connection().send_messages([email]) self.assertEqual(num_sent, 1) message = self.get_the_message() self.assertEqual(message["subject"], "Subject") self.assertEqual(message.get_payload(), "Content") self.assertEqual(message["from"], "from@example.com") self.assertEqual(message.get_all("to"), ["to@example.com"]) def test_send_unicode(self): email = EmailMessage('Chère maman', 'Je t\'aime très fort', 'from@example.com', ['to@example.com']) num_sent = mail.get_connection().send_messages([email]) self.assertEqual(num_sent, 1) message = self.get_the_message() self.assertEqual(message["subject"], '=?utf-8?q?Ch=C3=A8re_maman?=') self.assertEqual(message.get_payload(decode=True).decode(), 'Je t\'aime très fort') def test_send_long_lines(self): """ Email line length is limited to 998 chars by the RFC: https://tools.ietf.org/html/rfc5322#section-2.1.1 Message body containing longer lines are converted to Quoted-Printable to avoid having to insert newlines, which could be hairy to do properly. """ # Unencoded body length is < 998 (840) but > 998 when utf-8 encoded. email = EmailMessage('Subject', 'В южных морях ' * 60, 'from@example.com', ['to@example.com']) email.send() message = self.get_the_message() self.assertMessageHasHeaders(message, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="utf-8"'), ('Content-Transfer-Encoding', 'quoted-printable'), }) def test_send_many(self): email1 = EmailMessage('Subject', 'Content1', 'from@example.com', ['to@example.com']) email2 = EmailMessage('Subject', 'Content2', 'from@example.com', ['to@example.com']) # send_messages() may take a list or an iterator. emails_lists = ([email1, email2], iter((email1, email2))) for emails_list in emails_lists: num_sent = mail.get_connection().send_messages(emails_list) self.assertEqual(num_sent, 2) messages = self.get_mailbox_content() self.assertEqual(len(messages), 2) self.assertEqual(messages[0].get_payload(), 'Content1') self.assertEqual(messages[1].get_payload(), 'Content2') self.flush_mailbox() def test_send_verbose_name(self): email = EmailMessage("Subject", "Content", '"Firstname Sürname" ', ["to@example.com"]) email.send() message = self.get_the_message() self.assertEqual(message["subject"], "Subject") self.assertEqual(message.get_payload(), "Content") self.assertEqual(message["from"], "=?utf-8?q?Firstname_S=C3=BCrname?= ") def test_plaintext_send_mail(self): """ Test send_mail without the html_message regression test for adding html_message parameter to send_mail() """ send_mail('Subject', 'Content', 'sender@example.com', ['nobody@example.com']) message = self.get_the_message() self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get_all('to'), ['nobody@example.com']) self.assertFalse(message.is_multipart()) self.assertEqual(message.get_payload(), 'Content') self.assertEqual(message.get_content_type(), 'text/plain') def test_html_send_mail(self): """Test html_message argument to send_mail""" send_mail('Subject', 'Content', 'sender@example.com', ['nobody@example.com'], html_message='HTML Content') message = self.get_the_message() self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get_all('to'), ['nobody@example.com']) self.assertTrue(message.is_multipart()) self.assertEqual(len(message.get_payload()), 2) self.assertEqual(message.get_payload(0).get_payload(), 'Content') self.assertEqual(message.get_payload(0).get_content_type(), 'text/plain') self.assertEqual(message.get_payload(1).get_payload(), 'HTML Content') self.assertEqual(message.get_payload(1).get_content_type(), 'text/html') @override_settings(MANAGERS=[('nobody', 'nobody@example.com')]) def test_html_mail_managers(self): """Test html_message argument to mail_managers""" mail_managers('Subject', 'Content', html_message='HTML Content') message = self.get_the_message() self.assertEqual(message.get('subject'), '[Django] Subject') self.assertEqual(message.get_all('to'), ['nobody@example.com']) self.assertTrue(message.is_multipart()) self.assertEqual(len(message.get_payload()), 2) self.assertEqual(message.get_payload(0).get_payload(), 'Content') self.assertEqual(message.get_payload(0).get_content_type(), 'text/plain') self.assertEqual(message.get_payload(1).get_payload(), 'HTML Content') self.assertEqual(message.get_payload(1).get_content_type(), 'text/html') @override_settings(ADMINS=[('nobody', 'nobody@example.com')]) def test_html_mail_admins(self): """Test html_message argument to mail_admins """ mail_admins('Subject', 'Content', html_message='HTML Content') message = self.get_the_message() self.assertEqual(message.get('subject'), '[Django] Subject') self.assertEqual(message.get_all('to'), ['nobody@example.com']) self.assertTrue(message.is_multipart()) self.assertEqual(len(message.get_payload()), 2) self.assertEqual(message.get_payload(0).get_payload(), 'Content') self.assertEqual(message.get_payload(0).get_content_type(), 'text/plain') self.assertEqual(message.get_payload(1).get_payload(), 'HTML Content') self.assertEqual(message.get_payload(1).get_content_type(), 'text/html') @override_settings( ADMINS=[('nobody', 'nobody+admin@example.com')], MANAGERS=[('nobody', 'nobody+manager@example.com')]) def test_manager_and_admin_mail_prefix(self): """ String prefix + lazy translated subject = bad output Regression for #13494 """ mail_managers(gettext_lazy('Subject'), 'Content') message = self.get_the_message() self.assertEqual(message.get('subject'), '[Django] Subject') self.flush_mailbox() mail_admins(gettext_lazy('Subject'), 'Content') message = self.get_the_message() self.assertEqual(message.get('subject'), '[Django] Subject') @override_settings(ADMINS=[], MANAGERS=[]) def test_empty_admins(self): """ mail_admins/mail_managers doesn't connect to the mail server if there are no recipients (#9383) """ mail_admins('hi', 'there') self.assertEqual(self.get_mailbox_content(), []) mail_managers('hi', 'there') self.assertEqual(self.get_mailbox_content(), []) def test_message_cc_header(self): """ Regression test for #7722 """ email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com'], cc=['cc@example.com']) mail.get_connection().send_messages([email]) message = self.get_the_message() self.assertMessageHasHeaders(message, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="utf-8"'), ('Content-Transfer-Encoding', '7bit'), ('Subject', 'Subject'), ('From', 'from@example.com'), ('To', 'to@example.com'), ('Cc', 'cc@example.com')}) self.assertIn('\nDate: ', message.as_string()) def test_idn_send(self): """ Regression test for #14301 """ self.assertTrue(send_mail('Subject', 'Content', 'from@öäü.com', ['to@öäü.com'])) message = self.get_the_message() self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get('from'), 'from@xn--4ca9at.com') self.assertEqual(message.get('to'), 'to@xn--4ca9at.com') self.flush_mailbox() m = EmailMessage('Subject', 'Content', 'from@öäü.com', ['to@öäü.com'], cc=['cc@öäü.com']) m.send() message = self.get_the_message() self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get('from'), 'from@xn--4ca9at.com') self.assertEqual(message.get('to'), 'to@xn--4ca9at.com') self.assertEqual(message.get('cc'), 'cc@xn--4ca9at.com') def test_recipient_without_domain(self): """ Regression test for #15042 """ self.assertTrue(send_mail("Subject", "Content", "tester", ["django"])) message = self.get_the_message() self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get('from'), "tester") self.assertEqual(message.get('to'), "django") def test_lazy_addresses(self): """ Email sending should support lazy email addresses (#24416). """ _ = gettext_lazy self.assertTrue(send_mail('Subject', 'Content', _('tester'), [_('django')])) message = self.get_the_message() self.assertEqual(message.get('from'), 'tester') self.assertEqual(message.get('to'), 'django') self.flush_mailbox() m = EmailMessage( 'Subject', 'Content', _('tester'), [_('to1'), _('to2')], cc=[_('cc1'), _('cc2')], bcc=[_('bcc')], reply_to=[_('reply')], ) self.assertEqual(m.recipients(), ['to1', 'to2', 'cc1', 'cc2', 'bcc']) m.send() message = self.get_the_message() self.assertEqual(message.get('from'), 'tester') self.assertEqual(message.get('to'), 'to1, to2') self.assertEqual(message.get('cc'), 'cc1, cc2') self.assertEqual(message.get('Reply-To'), 'reply') def test_close_connection(self): """ Connection can be closed (even when not explicitly opened) """ conn = mail.get_connection(username='', password='') conn.close() def test_use_as_contextmanager(self): """ The connection can be used as a contextmanager. """ opened = [False] closed = [False] conn = mail.get_connection(username='', password='') def open(): opened[0] = True conn.open = open def close(): closed[0] = True conn.close = close with conn as same_conn: self.assertTrue(opened[0]) self.assertIs(same_conn, conn) self.assertFalse(closed[0]) self.assertTrue(closed[0]) class LocmemBackendTests(BaseEmailBackendTests, SimpleTestCase): email_backend = 'django.core.mail.backends.locmem.EmailBackend' def get_mailbox_content(self): return [m.message() for m in mail.outbox] def flush_mailbox(self): mail.outbox = [] def tearDown(self): super().tearDown() mail.outbox = [] def test_locmem_shared_messages(self): """ Make sure that the locmen backend populates the outbox. """ connection = locmem.EmailBackend() connection2 = locmem.EmailBackend() email = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) connection.send_messages([email]) connection2.send_messages([email]) self.assertEqual(len(mail.outbox), 2) def test_validate_multiline_headers(self): # Ticket #18861 - Validate emails when using the locmem backend with self.assertRaises(BadHeaderError): send_mail('Subject\nMultiline', 'Content', 'from@example.com', ['to@example.com']) class FileBackendTests(BaseEmailBackendTests, SimpleTestCase): email_backend = 'django.core.mail.backends.filebased.EmailBackend' def setUp(self): super().setUp() self.tmp_dir = tempfile.mkdtemp() self.addCleanup(shutil.rmtree, self.tmp_dir) self._settings_override = override_settings(EMAIL_FILE_PATH=self.tmp_dir) self._settings_override.enable() def tearDown(self): self._settings_override.disable() super().tearDown() def flush_mailbox(self): for filename in os.listdir(self.tmp_dir): os.unlink(os.path.join(self.tmp_dir, filename)) def get_mailbox_content(self): messages = [] for filename in os.listdir(self.tmp_dir): with open(os.path.join(self.tmp_dir, filename), 'rb') as fp: session = fp.read().split(b'\n' + (b'-' * 79) + b'\n') messages.extend(message_from_bytes(m) for m in session if m) return messages def test_file_sessions(self): """Make sure opening a connection creates a new file""" msg = EmailMessage( 'Subject', 'Content', 'bounce@example.com', ['to@example.com'], headers={'From': 'from@example.com'}, ) connection = mail.get_connection() connection.send_messages([msg]) self.assertEqual(len(os.listdir(self.tmp_dir)), 1) with open(os.path.join(self.tmp_dir, os.listdir(self.tmp_dir)[0]), 'rb') as fp: message = message_from_binary_file(fp) self.assertEqual(message.get_content_type(), 'text/plain') self.assertEqual(message.get('subject'), 'Subject') self.assertEqual(message.get('from'), 'from@example.com') self.assertEqual(message.get('to'), 'to@example.com') connection2 = mail.get_connection() connection2.send_messages([msg]) self.assertEqual(len(os.listdir(self.tmp_dir)), 2) connection.send_messages([msg]) self.assertEqual(len(os.listdir(self.tmp_dir)), 2) msg.connection = mail.get_connection() self.assertTrue(connection.open()) msg.send() self.assertEqual(len(os.listdir(self.tmp_dir)), 3) msg.send() self.assertEqual(len(os.listdir(self.tmp_dir)), 3) connection.close() class ConsoleBackendTests(BaseEmailBackendTests, SimpleTestCase): email_backend = 'django.core.mail.backends.console.EmailBackend' def setUp(self): super().setUp() self.__stdout = sys.stdout self.stream = sys.stdout = StringIO() def tearDown(self): del self.stream sys.stdout = self.__stdout del self.__stdout super().tearDown() def flush_mailbox(self): self.stream = sys.stdout = StringIO() def get_mailbox_content(self): messages = self.stream.getvalue().split('\n' + ('-' * 79) + '\n') return [message_from_bytes(m.encode()) for m in messages if m] def test_console_stream_kwarg(self): """ The console backend can be pointed at an arbitrary stream. """ s = StringIO() connection = mail.get_connection('django.core.mail.backends.console.EmailBackend', stream=s) send_mail('Subject', 'Content', 'from@example.com', ['to@example.com'], connection=connection) message = s.getvalue().split('\n' + ('-' * 79) + '\n')[0].encode() self.assertMessageHasHeaders(message, { ('MIME-Version', '1.0'), ('Content-Type', 'text/plain; charset="utf-8"'), ('Content-Transfer-Encoding', '7bit'), ('Subject', 'Subject'), ('From', 'from@example.com'), ('To', 'to@example.com')}) self.assertIn(b'\nDate: ', message) class FakeSMTPChannel(smtpd.SMTPChannel): def collect_incoming_data(self, data): try: smtpd.SMTPChannel.collect_incoming_data(self, data) except UnicodeDecodeError: # Ignore decode error in SSL/TLS connection tests as the test only # cares whether the connection attempt was made. pass def smtp_AUTH(self, arg): if arg == 'CRAM-MD5': # This is only the first part of the login process. But it's enough # for our tests. challenge = base64.b64encode(b'somerandomstring13579') self.push('334 %s' % challenge.decode()) else: self.push('502 Error: login "%s" not implemented' % arg) class FakeSMTPServer(smtpd.SMTPServer, threading.Thread): """ Asyncore SMTP server wrapped into a thread. Based on DummyFTPServer from: http://svn.python.org/view/python/branches/py3k/Lib/test/test_ftplib.py?revision=86061&view=markup """ channel_class = FakeSMTPChannel def __init__(self, *args, **kwargs): threading.Thread.__init__(self) smtpd.SMTPServer.__init__(self, *args, decode_data=True, **kwargs) self._sink = [] self.active = False self.active_lock = threading.Lock() self.sink_lock = threading.Lock() def process_message(self, peer, mailfrom, rcpttos, data): data = data.encode() m = message_from_bytes(data) maddr = parseaddr(m.get('from'))[1] if mailfrom != maddr: # According to the spec, mailfrom does not necessarily match the # From header - this is the case where the local part isn't # encoded, so try to correct that. lp, domain = mailfrom.split('@', 1) lp = Header(lp, 'utf-8').encode() mailfrom = '@'.join([lp, domain]) if mailfrom != maddr: return "553 '%s' != '%s'" % (mailfrom, maddr) with self.sink_lock: self._sink.append(m) def get_sink(self): with self.sink_lock: return self._sink[:] def flush_sink(self): with self.sink_lock: self._sink[:] = [] def start(self): assert not self.active self.__flag = threading.Event() threading.Thread.start(self) self.__flag.wait() def run(self): self.active = True self.__flag.set() while self.active and asyncore.socket_map: with self.active_lock: asyncore.loop(timeout=0.1, count=1) asyncore.close_all() def stop(self): if self.active: self.active = False self.join() class FakeAUTHSMTPConnection(SMTP): """ A SMTP connection pretending support for the AUTH command. It does not, but at least this can allow testing the first part of the AUTH process. """ def ehlo(self, name=''): response = SMTP.ehlo(self, name=name) self.esmtp_features.update({ 'auth': 'CRAM-MD5 PLAIN LOGIN', }) return response class SMTPBackendTestsBase(SimpleTestCase): @classmethod def setUpClass(cls): super().setUpClass() cls.server = FakeSMTPServer(('127.0.0.1', 0), None) cls._settings_override = override_settings( EMAIL_HOST="127.0.0.1", EMAIL_PORT=cls.server.socket.getsockname()[1]) cls._settings_override.enable() cls.server.start() @classmethod def tearDownClass(cls): cls._settings_override.disable() cls.server.stop() super().tearDownClass() class SMTPBackendTests(BaseEmailBackendTests, SMTPBackendTestsBase): email_backend = 'django.core.mail.backends.smtp.EmailBackend' def setUp(self): super().setUp() self.server.flush_sink() def tearDown(self): self.server.flush_sink() super().tearDown() def flush_mailbox(self): self.server.flush_sink() def get_mailbox_content(self): return self.server.get_sink() @override_settings( EMAIL_HOST_USER="not empty username", EMAIL_HOST_PASSWORD='not empty password', ) def test_email_authentication_use_settings(self): backend = smtp.EmailBackend() self.assertEqual(backend.username, 'not empty username') self.assertEqual(backend.password, 'not empty password') @override_settings( EMAIL_HOST_USER="not empty username", EMAIL_HOST_PASSWORD='not empty password', ) def test_email_authentication_override_settings(self): backend = smtp.EmailBackend(username='username', password='password') self.assertEqual(backend.username, 'username') self.assertEqual(backend.password, 'password') @override_settings( EMAIL_HOST_USER="not empty username", EMAIL_HOST_PASSWORD='not empty password', ) def test_email_disabled_authentication(self): backend = smtp.EmailBackend(username='', password='') self.assertEqual(backend.username, '') self.assertEqual(backend.password, '') def test_auth_attempted(self): """ Opening the backend with non empty username/password tries to authenticate against the SMTP server. """ backend = smtp.EmailBackend( username='not empty username', password='not empty password') with self.assertRaisesMessage(SMTPException, 'SMTP AUTH extension not supported by server.'): with backend: pass def test_server_open(self): """ open() returns whether it opened a connection. """ backend = smtp.EmailBackend(username='', password='') self.assertIsNone(backend.connection) opened = backend.open() backend.close() self.assertIs(opened, True) def test_reopen_connection(self): backend = smtp.EmailBackend() # Simulate an already open connection. backend.connection = True self.assertIs(backend.open(), False) def test_server_login(self): """ Even if the Python SMTP server doesn't support authentication, the login process starts and the appropriate exception is raised. """ class CustomEmailBackend(smtp.EmailBackend): connection_class = FakeAUTHSMTPConnection backend = CustomEmailBackend(username='username', password='password') with self.assertRaises(SMTPAuthenticationError): with backend: pass @override_settings(EMAIL_USE_TLS=True) def test_email_tls_use_settings(self): backend = smtp.EmailBackend() self.assertTrue(backend.use_tls) @override_settings(EMAIL_USE_TLS=True) def test_email_tls_override_settings(self): backend = smtp.EmailBackend(use_tls=False) self.assertFalse(backend.use_tls) def test_email_tls_default_disabled(self): backend = smtp.EmailBackend() self.assertFalse(backend.use_tls) def test_ssl_tls_mutually_exclusive(self): msg = ( 'EMAIL_USE_TLS/EMAIL_USE_SSL are mutually exclusive, so only set ' 'one of those settings to True.' ) with self.assertRaisesMessage(ValueError, msg): smtp.EmailBackend(use_ssl=True, use_tls=True) @override_settings(EMAIL_USE_SSL=True) def test_email_ssl_use_settings(self): backend = smtp.EmailBackend() self.assertTrue(backend.use_ssl) @override_settings(EMAIL_USE_SSL=True) def test_email_ssl_override_settings(self): backend = smtp.EmailBackend(use_ssl=False) self.assertFalse(backend.use_ssl) def test_email_ssl_default_disabled(self): backend = smtp.EmailBackend() self.assertFalse(backend.use_ssl) @override_settings(EMAIL_SSL_CERTFILE='foo') def test_email_ssl_certfile_use_settings(self): backend = smtp.EmailBackend() self.assertEqual(backend.ssl_certfile, 'foo') @override_settings(EMAIL_SSL_CERTFILE='foo') def test_email_ssl_certfile_override_settings(self): backend = smtp.EmailBackend(ssl_certfile='bar') self.assertEqual(backend.ssl_certfile, 'bar') def test_email_ssl_certfile_default_disabled(self): backend = smtp.EmailBackend() self.assertIsNone(backend.ssl_certfile) @override_settings(EMAIL_SSL_KEYFILE='foo') def test_email_ssl_keyfile_use_settings(self): backend = smtp.EmailBackend() self.assertEqual(backend.ssl_keyfile, 'foo') @override_settings(EMAIL_SSL_KEYFILE='foo') def test_email_ssl_keyfile_override_settings(self): backend = smtp.EmailBackend(ssl_keyfile='bar') self.assertEqual(backend.ssl_keyfile, 'bar') def test_email_ssl_keyfile_default_disabled(self): backend = smtp.EmailBackend() self.assertIsNone(backend.ssl_keyfile) @override_settings(EMAIL_USE_TLS=True) def test_email_tls_attempts_starttls(self): backend = smtp.EmailBackend() self.assertTrue(backend.use_tls) with self.assertRaisesMessage(SMTPException, 'STARTTLS extension not supported by server.'): with backend: pass @override_settings(EMAIL_USE_SSL=True) def test_email_ssl_attempts_ssl_connection(self): backend = smtp.EmailBackend() self.assertTrue(backend.use_ssl) with self.assertRaises(SSLError): with backend: pass def test_connection_timeout_default(self): """The connection's timeout value is None by default.""" connection = mail.get_connection('django.core.mail.backends.smtp.EmailBackend') self.assertIsNone(connection.timeout) def test_connection_timeout_custom(self): """The timeout parameter can be customized.""" class MyEmailBackend(smtp.EmailBackend): def __init__(self, *args, **kwargs): kwargs.setdefault('timeout', 42) super().__init__(*args, **kwargs) myemailbackend = MyEmailBackend() myemailbackend.open() self.assertEqual(myemailbackend.timeout, 42) self.assertEqual(myemailbackend.connection.timeout, 42) myemailbackend.close() @override_settings(EMAIL_TIMEOUT=10) def test_email_timeout_override_settings(self): backend = smtp.EmailBackend() self.assertEqual(backend.timeout, 10) def test_email_msg_uses_crlf(self): """#23063 -- RFC-compliant messages are sent over SMTP.""" send = SMTP.send try: smtp_messages = [] def mock_send(self, s): smtp_messages.append(s) return send(self, s) SMTP.send = mock_send email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com']) mail.get_connection().send_messages([email]) # Find the actual message msg = None for i, m in enumerate(smtp_messages): if m[:4] == 'data': msg = smtp_messages[i + 1] break self.assertTrue(msg) msg = msg.decode() # The message only contains CRLF and not combinations of CRLF, LF, and CR. msg = msg.replace('\r\n', '') self.assertNotIn('\r', msg) self.assertNotIn('\n', msg) finally: SMTP.send = send def test_send_messages_after_open_failed(self): """ send_messages() shouldn't try to send messages if open() raises an exception after initializing the connection. """ backend = smtp.EmailBackend() # Simulate connection initialization success and a subsequent # connection exception. backend.connection = True backend.open = lambda: None email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com']) self.assertEqual(backend.send_messages([email]), 0) def test_send_messages_empty_list(self): backend = smtp.EmailBackend() backend.connection = True self.assertEqual(backend.send_messages([]), 0) def test_send_messages_zero_sent(self): """A message isn't sent if it doesn't have any recipients.""" backend = smtp.EmailBackend() backend.connection = True email = EmailMessage('Subject', 'Content', 'from@example.com', to=[]) sent = backend.send_messages([email]) self.assertEqual(sent, 0) class SMTPBackendStoppedServerTests(SMTPBackendTestsBase): """ These tests require a separate class, because the FakeSMTPServer is shut down in setUpClass(), and it cannot be restarted ("RuntimeError: threads can only be started once"). """ @classmethod def setUpClass(cls): super().setUpClass() cls.backend = smtp.EmailBackend(username='', password='') cls.server.stop() def test_server_stopped(self): """ Closing the backend while the SMTP server is stopped doesn't raise an exception. """ self.backend.close() def test_fail_silently_on_connection_error(self): """ A socket connection error is silenced with fail_silently=True. """ with self.assertRaises(ConnectionError): self.backend.open() self.backend.fail_silently = True self.backend.open()