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Introduced as_bytes for SafeMIMEText (and other SafeMIME-classes).

This is to provide a consistent interface (namely bytes) for the smtp
backend which after all sends bytes over the wire; encoding with as_string
yields different results since mails as unicode are not really specified.

as_string stays for backwardscompatibilty mostly and some debug outputs.
But keep in mind that the output doesn't match as_bytes!
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commit 5dfd824d38ec7d1f695494e46d603e89cae68661 1 parent 280c1a6
Florian Apolloner apollo13 authored
5 django/core/mail/backends/smtp.py
View
@@ -7,7 +7,6 @@
from django.core.mail.backends.base import BaseEmailBackend
from django.core.mail.utils import DNS_NAME
from django.core.mail.message import sanitize_address
-from django.utils.encoding import force_bytes
class EmailBackend(BaseEmailBackend):
@@ -111,10 +110,8 @@ def _send(self, email_message):
recipients = [sanitize_address(addr, email_message.encoding)
for addr in email_message.recipients()]
message = email_message.message()
- charset = message.get_charset().get_output_charset() if message.get_charset() else 'utf-8'
try:
- self.connection.sendmail(from_email, recipients,
- force_bytes(message.as_string(), charset))
+ self.connection.sendmail(from_email, recipients, message.as_bytes())
except smtplib.SMTPException:
if not self.fail_silently:
raise
33 django/core/mail/message.py
View
@@ -131,21 +131,25 @@ def as_string(self, unixfrom=False):
This overrides the default as_string() implementation to not mangle
lines that begin with 'From '. See bug #13433 for details.
"""
- # Using a normal Generator on python 3 will yield a string, which will
- # get base64 encoded in some cases to ensure that it's always convertable
- # to ascii. We don't want base64 encoded emails, so we use a BytesGenertor
- # which will do the right thing and then decode according to our known
- # encoding. See #21093 and #3472 for details.
- if six.PY3 and sys.version_info >= (3, 3, 3):
+ fp = six.StringIO()
+ g = generator.Generator(fp, mangle_from_=False)
+ g.flatten(self, unixfrom=unixfrom)
+ return fp.getvalue()
+
+ if six.PY2:
+ as_bytes = as_string
+ else:
+ def as_bytes(self, unixfrom=False):
+ """Return the entire formatted message as bytes.
+ Optional `unixfrom' when True, means include the Unix From_ envelope
+ header.
+
+ This overrides the default as_bytes() implementation to not mangle
+ lines that begin with 'From '. See bug #13433 for details.
+ """
fp = six.BytesIO()
g = generator.BytesGenerator(fp, mangle_from_=False)
g.flatten(self, unixfrom=unixfrom)
- encoding = self.get_charset().get_output_charset() if self.get_charset() else 'utf-8'
- return fp.getvalue().decode(encoding)
- else:
- fp = six.StringIO()
- g = generator.Generator(fp, mangle_from_=False)
- g.flatten(self, unixfrom=unixfrom)
return fp.getvalue()
@@ -167,9 +171,8 @@ def __init__(self, text, subtype, charset):
# We do it manually and trigger re-encoding of the payload.
MIMEText.__init__(self, text, subtype, None)
del self['Content-Transfer-Encoding']
- # Work around a bug in python 3.3.3 [sic], see
- # http://bugs.python.org/issue19063 for details.
- if sys.version_info[:3] == (3, 3, 3):
+ # Workaround for versions without http://bugs.python.org/issue19063
+ if (3, 2) < sys.version_info < (3, 3, 4):
payload = text.encode(utf8_charset.output_charset)
self._payload = payload.decode('ascii', 'surrogateescape')
self.set_charset(utf8_charset)
48 tests/mail/tests.py
View
@@ -20,14 +20,16 @@
from django.core.mail.message import BadHeaderError
from django.test import SimpleTestCase
from django.test import override_settings
-from django.utils.encoding import force_str, force_text
+from django.utils.encoding import force_str, force_text, force_bytes
from django.utils.six import PY3, StringIO, string_types
from django.utils.translation import ugettext_lazy
if PY3:
from email.utils import parseaddr
+ from email import message_from_bytes
else:
from email.Utils import parseaddr
+ message_from_bytes = message_from_string
class HeadersCheckMixin(object):
@@ -231,13 +233,13 @@ def test_encoding(self):
('MIME-Version', '1.0'),
('Content-Type', 'text/plain; charset="iso-8859-1"'),
('Content-Transfer-Encoding', 'quoted-printable')})
- self.assertTrue(payload0.as_string().endswith('\n\nFirstname S=FCrname is a great guy.'))
+ 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_string().endswith('\n\n<p>Firstname S=FCrname is a <strong>great</strong> guy.</p>'))
+ self.assertTrue(payload1.as_bytes().endswith(b'\n\n<p>Firstname S=FCrname is a <strong>great</strong> guy.</p>'))
def test_attachments(self):
"""Regression test for #9367"""
@@ -248,8 +250,8 @@ def test_attachments(self):
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_str = msg.message().as_string()
- message = message_from_string(msg_str)
+ 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')
@@ -265,8 +267,8 @@ def test_non_ascii_attachment_filename(self):
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_str = msg.message().as_string()
- message = message_from_string(msg_str)
+ 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')
@@ -348,31 +350,31 @@ 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.assertFalse('>From the future' in email.message().as_string())
+ self.assertFalse(b'>From the future' in 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.assertFalse('Content-Transfer-Encoding: base64' in msg.message().as_string())
+ self.assertFalse(b'Content-Transfer-Encoding: base64' in 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_string()
- self.assertFalse('Content-Transfer-Encoding: quoted-printable' in s)
- self.assertTrue('Content-Transfer-Encoding: 7bit' in s)
+ s = msg.message().as_bytes()
+ self.assertFalse(b'Content-Transfer-Encoding: quoted-printable' in s)
+ self.assertTrue(b'Content-Transfer-Encoding: 7bit' in 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_string()
- self.assertFalse(str('Content-Transfer-Encoding: quoted-printable') in s)
- self.assertTrue(str('Content-Transfer-Encoding: 8bit') in s)
+ s = msg.message().as_bytes()
+ self.assertFalse(b'Content-Transfer-Encoding: quoted-printable' in s)
+ self.assertTrue(b'Content-Transfer-Encoding: 8bit' in 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_string()
- self.assertFalse(str('Content-Transfer-Encoding: quoted-printable') in s)
- self.assertTrue(str('Content-Transfer-Encoding: 8bit') in s)
+ s = msg.message().as_bytes()
+ self.assertFalse(b'Content-Transfer-Encoding: quoted-printable' in s)
+ self.assertTrue(b'Content-Transfer-Encoding: 8bit' in s)
def test_dont_base64_encode_message_rfc822(self):
# Ticket #18967
@@ -476,7 +478,7 @@ def test_send_unicode(self):
self.assertEqual(num_sent, 1)
message = self.get_the_message()
self.assertEqual(message["subject"], '=?utf-8?q?Ch=C3=A8re_maman?=')
- self.assertEqual(force_text(message.get_payload()), 'Je t\'aime très fort')
+ self.assertEqual(force_text(message.get_payload(decode=True)), 'Je t\'aime très fort')
def test_send_many(self):
email1 = EmailMessage('Subject', 'Content1', 'from@example.com', ['to@example.com'])
@@ -746,8 +748,8 @@ def flush_mailbox(self):
self.stream = sys.stdout = StringIO()
def get_mailbox_content(self):
- messages = force_text(self.stream.getvalue()).split('\n' + ('-' * 79) + '\n')
- return [message_from_string(force_str(m)) for m in messages if m]
+ messages = self.stream.getvalue().split(force_str('\n' + ('-' * 79) + '\n'))
+ return [message_from_bytes(force_bytes(m)) for m in messages if m]
def test_console_stream_kwarg(self):
"""
@@ -793,7 +795,9 @@ def __init__(self, *args, **kwargs):
self.sink_lock = threading.Lock()
def process_message(self, peer, mailfrom, rcpttos, data):
- m = message_from_string(data)
+ if PY3:
+ data = data.encode('utf-8')
+ m = message_from_bytes(data)
maddr = parseaddr(m.get('from'))[1]
if mailfrom != maddr:
return "553 '%s' != '%s'" % (mailfrom, maddr)
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