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test_email.py
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test_email.py
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# Copyright (C) 2001-2010 Python Software Foundation
# Contact: email-sig@python.org
# email package unit tests
import re
import time
import base64
import unittest
import textwrap
from io import StringIO, BytesIO
from itertools import chain
from random import choice
from threading import Thread
from unittest.mock import patch
import email
import email.policy
from email.charset import Charset
from email.header import Header, decode_header, make_header
from email.parser import Parser, HeaderParser
from email.generator import Generator, DecodedGenerator, BytesGenerator
from email.message import Message
from email.mime.application import MIMEApplication
from email.mime.audio import MIMEAudio
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.base import MIMEBase
from email.mime.message import MIMEMessage
from email.mime.multipart import MIMEMultipart
from email.mime.nonmultipart import MIMENonMultipart
from email import utils
from email import errors
from email import encoders
from email import iterators
from email import base64mime
from email import quoprimime
from test.support import unlink, start_threads
from test.test_email import openfile, TestEmailBase
# These imports are documented to work, but we are testing them using a
# different path, so we import them here just to make sure they are importable.
from email.parser import FeedParser, BytesFeedParser
NL = '\n'
EMPTYSTRING = ''
SPACE = ' '
# Test various aspects of the Message class's API
class TestMessageAPI(TestEmailBase):
def test_get_all(self):
eq = self.assertEqual
msg = self._msgobj('msg_20.txt')
eq(msg.get_all('cc'), ['ccc@zzz.org', 'ddd@zzz.org', 'eee@zzz.org'])
eq(msg.get_all('xx', 'n/a'), 'n/a')
def test_getset_charset(self):
eq = self.assertEqual
msg = Message()
eq(msg.get_charset(), None)
charset = Charset('iso-8859-1')
msg.set_charset(charset)
eq(msg['mime-version'], '1.0')
eq(msg.get_content_type(), 'text/plain')
eq(msg['content-type'], 'text/plain; charset="iso-8859-1"')
eq(msg.get_param('charset'), 'iso-8859-1')
eq(msg['content-transfer-encoding'], 'quoted-printable')
eq(msg.get_charset().input_charset, 'iso-8859-1')
# Remove the charset
msg.set_charset(None)
eq(msg.get_charset(), None)
eq(msg['content-type'], 'text/plain')
# Try adding a charset when there's already MIME headers present
msg = Message()
msg['MIME-Version'] = '2.0'
msg['Content-Type'] = 'text/x-weird'
msg['Content-Transfer-Encoding'] = 'quinted-puntable'
msg.set_charset(charset)
eq(msg['mime-version'], '2.0')
eq(msg['content-type'], 'text/x-weird; charset="iso-8859-1"')
eq(msg['content-transfer-encoding'], 'quinted-puntable')
def test_set_charset_from_string(self):
eq = self.assertEqual
msg = Message()
msg.set_charset('us-ascii')
eq(msg.get_charset().input_charset, 'us-ascii')
eq(msg['content-type'], 'text/plain; charset="us-ascii"')
def test_set_payload_with_charset(self):
msg = Message()
charset = Charset('iso-8859-1')
msg.set_payload('This is a string payload', charset)
self.assertEqual(msg.get_charset().input_charset, 'iso-8859-1')
def test_set_payload_with_8bit_data_and_charset(self):
data = b'\xd0\x90\xd0\x91\xd0\x92'
charset = Charset('utf-8')
msg = Message()
msg.set_payload(data, charset)
self.assertEqual(msg['content-transfer-encoding'], 'base64')
self.assertEqual(msg.get_payload(decode=True), data)
self.assertEqual(msg.get_payload(), '0JDQkdCS\n')
def test_set_payload_with_non_ascii_and_charset_body_encoding_none(self):
data = b'\xd0\x90\xd0\x91\xd0\x92'
charset = Charset('utf-8')
charset.body_encoding = None # Disable base64 encoding
msg = Message()
msg.set_payload(data.decode('utf-8'), charset)
self.assertEqual(msg['content-transfer-encoding'], '8bit')
self.assertEqual(msg.get_payload(decode=True), data)
def test_set_payload_with_8bit_data_and_charset_body_encoding_none(self):
data = b'\xd0\x90\xd0\x91\xd0\x92'
charset = Charset('utf-8')
charset.body_encoding = None # Disable base64 encoding
msg = Message()
msg.set_payload(data, charset)
self.assertEqual(msg['content-transfer-encoding'], '8bit')
self.assertEqual(msg.get_payload(decode=True), data)
def test_set_payload_to_list(self):
msg = Message()
msg.set_payload([])
self.assertEqual(msg.get_payload(), [])
def test_attach_when_payload_is_string(self):
msg = Message()
msg['Content-Type'] = 'multipart/mixed'
msg.set_payload('string payload')
sub_msg = MIMEMessage(Message())
self.assertRaisesRegex(TypeError, "[Aa]ttach.*non-multipart",
msg.attach, sub_msg)
def test_get_charsets(self):
eq = self.assertEqual
msg = self._msgobj('msg_08.txt')
charsets = msg.get_charsets()
eq(charsets, [None, 'us-ascii', 'iso-8859-1', 'iso-8859-2', 'koi8-r'])
msg = self._msgobj('msg_09.txt')
charsets = msg.get_charsets('dingbat')
eq(charsets, ['dingbat', 'us-ascii', 'iso-8859-1', 'dingbat',
'koi8-r'])
msg = self._msgobj('msg_12.txt')
charsets = msg.get_charsets()
eq(charsets, [None, 'us-ascii', 'iso-8859-1', None, 'iso-8859-2',
'iso-8859-3', 'us-ascii', 'koi8-r'])
def test_get_filename(self):
eq = self.assertEqual
msg = self._msgobj('msg_04.txt')
filenames = [p.get_filename() for p in msg.get_payload()]
eq(filenames, ['msg.txt', 'msg.txt'])
msg = self._msgobj('msg_07.txt')
subpart = msg.get_payload(1)
eq(subpart.get_filename(), 'dingusfish.gif')
def test_get_filename_with_name_parameter(self):
eq = self.assertEqual
msg = self._msgobj('msg_44.txt')
filenames = [p.get_filename() for p in msg.get_payload()]
eq(filenames, ['msg.txt', 'msg.txt'])
def test_get_boundary(self):
eq = self.assertEqual
msg = self._msgobj('msg_07.txt')
# No quotes!
eq(msg.get_boundary(), 'BOUNDARY')
def test_set_boundary(self):
eq = self.assertEqual
# This one has no existing boundary parameter, but the Content-Type:
# header appears fifth.
msg = self._msgobj('msg_01.txt')
msg.set_boundary('BOUNDARY')
header, value = msg.items()[4]
eq(header.lower(), 'content-type')
eq(value, 'text/plain; charset="us-ascii"; boundary="BOUNDARY"')
# This one has a Content-Type: header, with a boundary, stuck in the
# middle of its headers. Make sure the order is preserved; it should
# be fifth.
msg = self._msgobj('msg_04.txt')
msg.set_boundary('BOUNDARY')
header, value = msg.items()[4]
eq(header.lower(), 'content-type')
eq(value, 'multipart/mixed; boundary="BOUNDARY"')
# And this one has no Content-Type: header at all.
msg = self._msgobj('msg_03.txt')
self.assertRaises(errors.HeaderParseError,
msg.set_boundary, 'BOUNDARY')
def test_make_boundary(self):
msg = MIMEMultipart('form-data')
# Note that when the boundary gets created is an implementation
# detail and might change.
self.assertEqual(msg.items()[0][1], 'multipart/form-data')
# Trigger creation of boundary
msg.as_string()
self.assertEqual(msg.items()[0][1][:33],
'multipart/form-data; boundary="==')
# XXX: there ought to be tests of the uniqueness of the boundary, too.
def test_message_rfc822_only(self):
# Issue 7970: message/rfc822 not in multipart parsed by
# HeaderParser caused an exception when flattened.
with openfile('msg_46.txt') as fp:
msgdata = fp.read()
parser = HeaderParser()
msg = parser.parsestr(msgdata)
out = StringIO()
gen = Generator(out, True, 0)
gen.flatten(msg, False)
self.assertEqual(out.getvalue(), msgdata)
def test_byte_message_rfc822_only(self):
# Make sure new bytes header parser also passes this.
with openfile('msg_46.txt') as fp:
msgdata = fp.read().encode('ascii')
parser = email.parser.BytesHeaderParser()
msg = parser.parsebytes(msgdata)
out = BytesIO()
gen = email.generator.BytesGenerator(out)
gen.flatten(msg)
self.assertEqual(out.getvalue(), msgdata)
def test_get_decoded_payload(self):
eq = self.assertEqual
msg = self._msgobj('msg_10.txt')
# The outer message is a multipart
eq(msg.get_payload(decode=True), None)
# Subpart 1 is 7bit encoded
eq(msg.get_payload(0).get_payload(decode=True),
b'This is a 7bit encoded message.\n')
# Subpart 2 is quopri
eq(msg.get_payload(1).get_payload(decode=True),
b'\xa1This is a Quoted Printable encoded message!\n')
# Subpart 3 is base64
eq(msg.get_payload(2).get_payload(decode=True),
b'This is a Base64 encoded message.')
# Subpart 4 is base64 with a trailing newline, which
# used to be stripped (issue 7143).
eq(msg.get_payload(3).get_payload(decode=True),
b'This is a Base64 encoded message.\n')
# Subpart 5 has no Content-Transfer-Encoding: header.
eq(msg.get_payload(4).get_payload(decode=True),
b'This has no Content-Transfer-Encoding: header.\n')
def test_get_decoded_uu_payload(self):
eq = self.assertEqual
msg = Message()
msg.set_payload('begin 666 -\n+:&5L;&\\@=V]R;&0 \n \nend\n')
for cte in ('x-uuencode', 'uuencode', 'uue', 'x-uue'):
msg['content-transfer-encoding'] = cte
eq(msg.get_payload(decode=True), b'hello world')
# Now try some bogus data
msg.set_payload('foo')
eq(msg.get_payload(decode=True), b'foo')
def test_get_payload_n_raises_on_non_multipart(self):
msg = Message()
self.assertRaises(TypeError, msg.get_payload, 1)
def test_decoded_generator(self):
eq = self.assertEqual
msg = self._msgobj('msg_07.txt')
with openfile('msg_17.txt') as fp:
text = fp.read()
s = StringIO()
g = DecodedGenerator(s)
g.flatten(msg)
eq(s.getvalue(), text)
def test__contains__(self):
msg = Message()
msg['From'] = 'Me'
msg['to'] = 'You'
# Check for case insensitivity
self.assertIn('from', msg)
self.assertIn('From', msg)
self.assertIn('FROM', msg)
self.assertIn('to', msg)
self.assertIn('To', msg)
self.assertIn('TO', msg)
def test_as_string(self):
msg = self._msgobj('msg_01.txt')
with openfile('msg_01.txt') as fp:
text = fp.read()
self.assertEqual(text, str(msg))
fullrepr = msg.as_string(unixfrom=True)
lines = fullrepr.split('\n')
self.assertTrue(lines[0].startswith('From '))
self.assertEqual(text, NL.join(lines[1:]))
def test_as_string_policy(self):
msg = self._msgobj('msg_01.txt')
newpolicy = msg.policy.clone(linesep='\r\n')
fullrepr = msg.as_string(policy=newpolicy)
s = StringIO()
g = Generator(s, policy=newpolicy)
g.flatten(msg)
self.assertEqual(fullrepr, s.getvalue())
def test_nonascii_as_string_without_cte(self):
m = textwrap.dedent("""\
MIME-Version: 1.0
Content-type: text/plain; charset="iso-8859-1"
Test if non-ascii messages with no Content-Transfer-Encoding set
can be as_string'd:
Föö bär
""")
source = m.encode('iso-8859-1')
expected = textwrap.dedent("""\
MIME-Version: 1.0
Content-type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Test if non-ascii messages with no Content-Transfer-Encoding set
can be as_string'd:
F=F6=F6 b=E4r
""")
msg = email.message_from_bytes(source)
self.assertEqual(msg.as_string(), expected)
def test_nonascii_as_string_without_content_type_and_cte(self):
m = textwrap.dedent("""\
MIME-Version: 1.0
Test if non-ascii messages with no Content-Type nor
Content-Transfer-Encoding set can be as_string'd:
Föö bär
""")
source = m.encode('iso-8859-1')
expected = source.decode('ascii', 'replace')
msg = email.message_from_bytes(source)
self.assertEqual(msg.as_string(), expected)
def test_as_bytes(self):
msg = self._msgobj('msg_01.txt')
with openfile('msg_01.txt') as fp:
data = fp.read().encode('ascii')
self.assertEqual(data, bytes(msg))
fullrepr = msg.as_bytes(unixfrom=True)
lines = fullrepr.split(b'\n')
self.assertTrue(lines[0].startswith(b'From '))
self.assertEqual(data, b'\n'.join(lines[1:]))
def test_as_bytes_policy(self):
msg = self._msgobj('msg_01.txt')
newpolicy = msg.policy.clone(linesep='\r\n')
fullrepr = msg.as_bytes(policy=newpolicy)
s = BytesIO()
g = BytesGenerator(s,policy=newpolicy)
g.flatten(msg)
self.assertEqual(fullrepr, s.getvalue())
# test_headerregistry.TestContentTypeHeader.bad_params
def test_bad_param(self):
msg = email.message_from_string("Content-Type: blarg; baz; boo\n")
self.assertEqual(msg.get_param('baz'), '')
def test_missing_filename(self):
msg = email.message_from_string("From: foo\n")
self.assertEqual(msg.get_filename(), None)
def test_bogus_filename(self):
msg = email.message_from_string(
"Content-Disposition: blarg; filename\n")
self.assertEqual(msg.get_filename(), '')
def test_missing_boundary(self):
msg = email.message_from_string("From: foo\n")
self.assertEqual(msg.get_boundary(), None)
def test_get_params(self):
eq = self.assertEqual
msg = email.message_from_string(
'X-Header: foo=one; bar=two; baz=three\n')
eq(msg.get_params(header='x-header'),
[('foo', 'one'), ('bar', 'two'), ('baz', 'three')])
msg = email.message_from_string(
'X-Header: foo; bar=one; baz=two\n')
eq(msg.get_params(header='x-header'),
[('foo', ''), ('bar', 'one'), ('baz', 'two')])
eq(msg.get_params(), None)
msg = email.message_from_string(
'X-Header: foo; bar="one"; baz=two\n')
eq(msg.get_params(header='x-header'),
[('foo', ''), ('bar', 'one'), ('baz', 'two')])
# test_headerregistry.TestContentTypeHeader.spaces_around_param_equals
def test_get_param_liberal(self):
msg = Message()
msg['Content-Type'] = 'Content-Type: Multipart/mixed; boundary = "CPIMSSMTPC06p5f3tG"'
self.assertEqual(msg.get_param('boundary'), 'CPIMSSMTPC06p5f3tG')
def test_get_param(self):
eq = self.assertEqual
msg = email.message_from_string(
"X-Header: foo=one; bar=two; baz=three\n")
eq(msg.get_param('bar', header='x-header'), 'two')
eq(msg.get_param('quuz', header='x-header'), None)
eq(msg.get_param('quuz'), None)
msg = email.message_from_string(
'X-Header: foo; bar="one"; baz=two\n')
eq(msg.get_param('foo', header='x-header'), '')
eq(msg.get_param('bar', header='x-header'), 'one')
eq(msg.get_param('baz', header='x-header'), 'two')
# XXX: We are not RFC-2045 compliant! We cannot parse:
# msg["Content-Type"] = 'text/plain; weird="hey; dolly? [you] @ <\\"home\\">?"'
# msg.get_param("weird")
# yet.
# test_headerregistry.TestContentTypeHeader.spaces_around_semis
def test_get_param_funky_continuation_lines(self):
msg = self._msgobj('msg_22.txt')
self.assertEqual(msg.get_payload(1).get_param('name'), 'wibble.JPG')
# test_headerregistry.TestContentTypeHeader.semis_inside_quotes
def test_get_param_with_semis_in_quotes(self):
msg = email.message_from_string(
'Content-Type: image/pjpeg; name="Jim&&Jill"\n')
self.assertEqual(msg.get_param('name'), 'Jim&&Jill')
self.assertEqual(msg.get_param('name', unquote=False),
'"Jim&&Jill"')
# test_headerregistry.TestContentTypeHeader.quotes_inside_rfc2231_value
def test_get_param_with_quotes(self):
msg = email.message_from_string(
'Content-Type: foo; bar*0="baz\\"foobar"; bar*1="\\"baz"')
self.assertEqual(msg.get_param('bar'), 'baz"foobar"baz')
msg = email.message_from_string(
"Content-Type: foo; bar*0=\"baz\\\"foobar\"; bar*1=\"\\\"baz\"")
self.assertEqual(msg.get_param('bar'), 'baz"foobar"baz')
def test_field_containment(self):
msg = email.message_from_string('Header: exists')
self.assertIn('header', msg)
self.assertIn('Header', msg)
self.assertIn('HEADER', msg)
self.assertNotIn('headerx', msg)
def test_set_param(self):
eq = self.assertEqual
msg = Message()
msg.set_param('charset', 'iso-2022-jp')
eq(msg.get_param('charset'), 'iso-2022-jp')
msg.set_param('importance', 'high value')
eq(msg.get_param('importance'), 'high value')
eq(msg.get_param('importance', unquote=False), '"high value"')
eq(msg.get_params(), [('text/plain', ''),
('charset', 'iso-2022-jp'),
('importance', 'high value')])
eq(msg.get_params(unquote=False), [('text/plain', ''),
('charset', '"iso-2022-jp"'),
('importance', '"high value"')])
msg.set_param('charset', 'iso-9999-xx', header='X-Jimmy')
eq(msg.get_param('charset', header='X-Jimmy'), 'iso-9999-xx')
def test_del_param(self):
eq = self.assertEqual
msg = self._msgobj('msg_05.txt')
eq(msg.get_params(),
[('multipart/report', ''), ('report-type', 'delivery-status'),
('boundary', 'D1690A7AC1.996856090/mail.example.com')])
old_val = msg.get_param("report-type")
msg.del_param("report-type")
eq(msg.get_params(),
[('multipart/report', ''),
('boundary', 'D1690A7AC1.996856090/mail.example.com')])
msg.set_param("report-type", old_val)
eq(msg.get_params(),
[('multipart/report', ''),
('boundary', 'D1690A7AC1.996856090/mail.example.com'),
('report-type', old_val)])
def test_del_param_on_other_header(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment', filename='bud.gif')
msg.del_param('filename', 'content-disposition')
self.assertEqual(msg['content-disposition'], 'attachment')
def test_del_param_on_nonexistent_header(self):
msg = Message()
# Deleting param on empty msg should not raise exception.
msg.del_param('filename', 'content-disposition')
def test_del_nonexistent_param(self):
msg = Message()
msg.add_header('Content-Type', 'text/plain', charset='utf-8')
existing_header = msg['Content-Type']
msg.del_param('foobar', header='Content-Type')
self.assertEqual(msg['Content-Type'], existing_header)
def test_set_type(self):
eq = self.assertEqual
msg = Message()
self.assertRaises(ValueError, msg.set_type, 'text')
msg.set_type('text/plain')
eq(msg['content-type'], 'text/plain')
msg.set_param('charset', 'us-ascii')
eq(msg['content-type'], 'text/plain; charset="us-ascii"')
msg.set_type('text/html')
eq(msg['content-type'], 'text/html; charset="us-ascii"')
def test_set_type_on_other_header(self):
msg = Message()
msg['X-Content-Type'] = 'text/plain'
msg.set_type('application/octet-stream', 'X-Content-Type')
self.assertEqual(msg['x-content-type'], 'application/octet-stream')
def test_get_content_type_missing(self):
msg = Message()
self.assertEqual(msg.get_content_type(), 'text/plain')
def test_get_content_type_missing_with_default_type(self):
msg = Message()
msg.set_default_type('message/rfc822')
self.assertEqual(msg.get_content_type(), 'message/rfc822')
def test_get_content_type_from_message_implicit(self):
msg = self._msgobj('msg_30.txt')
self.assertEqual(msg.get_payload(0).get_content_type(),
'message/rfc822')
def test_get_content_type_from_message_explicit(self):
msg = self._msgobj('msg_28.txt')
self.assertEqual(msg.get_payload(0).get_content_type(),
'message/rfc822')
def test_get_content_type_from_message_text_plain_implicit(self):
msg = self._msgobj('msg_03.txt')
self.assertEqual(msg.get_content_type(), 'text/plain')
def test_get_content_type_from_message_text_plain_explicit(self):
msg = self._msgobj('msg_01.txt')
self.assertEqual(msg.get_content_type(), 'text/plain')
def test_get_content_maintype_missing(self):
msg = Message()
self.assertEqual(msg.get_content_maintype(), 'text')
def test_get_content_maintype_missing_with_default_type(self):
msg = Message()
msg.set_default_type('message/rfc822')
self.assertEqual(msg.get_content_maintype(), 'message')
def test_get_content_maintype_from_message_implicit(self):
msg = self._msgobj('msg_30.txt')
self.assertEqual(msg.get_payload(0).get_content_maintype(), 'message')
def test_get_content_maintype_from_message_explicit(self):
msg = self._msgobj('msg_28.txt')
self.assertEqual(msg.get_payload(0).get_content_maintype(), 'message')
def test_get_content_maintype_from_message_text_plain_implicit(self):
msg = self._msgobj('msg_03.txt')
self.assertEqual(msg.get_content_maintype(), 'text')
def test_get_content_maintype_from_message_text_plain_explicit(self):
msg = self._msgobj('msg_01.txt')
self.assertEqual(msg.get_content_maintype(), 'text')
def test_get_content_subtype_missing(self):
msg = Message()
self.assertEqual(msg.get_content_subtype(), 'plain')
def test_get_content_subtype_missing_with_default_type(self):
msg = Message()
msg.set_default_type('message/rfc822')
self.assertEqual(msg.get_content_subtype(), 'rfc822')
def test_get_content_subtype_from_message_implicit(self):
msg = self._msgobj('msg_30.txt')
self.assertEqual(msg.get_payload(0).get_content_subtype(), 'rfc822')
def test_get_content_subtype_from_message_explicit(self):
msg = self._msgobj('msg_28.txt')
self.assertEqual(msg.get_payload(0).get_content_subtype(), 'rfc822')
def test_get_content_subtype_from_message_text_plain_implicit(self):
msg = self._msgobj('msg_03.txt')
self.assertEqual(msg.get_content_subtype(), 'plain')
def test_get_content_subtype_from_message_text_plain_explicit(self):
msg = self._msgobj('msg_01.txt')
self.assertEqual(msg.get_content_subtype(), 'plain')
def test_get_content_maintype_error(self):
msg = Message()
msg['Content-Type'] = 'no-slash-in-this-string'
self.assertEqual(msg.get_content_maintype(), 'text')
def test_get_content_subtype_error(self):
msg = Message()
msg['Content-Type'] = 'no-slash-in-this-string'
self.assertEqual(msg.get_content_subtype(), 'plain')
def test_replace_header(self):
eq = self.assertEqual
msg = Message()
msg.add_header('First', 'One')
msg.add_header('Second', 'Two')
msg.add_header('Third', 'Three')
eq(msg.keys(), ['First', 'Second', 'Third'])
eq(msg.values(), ['One', 'Two', 'Three'])
msg.replace_header('Second', 'Twenty')
eq(msg.keys(), ['First', 'Second', 'Third'])
eq(msg.values(), ['One', 'Twenty', 'Three'])
msg.add_header('First', 'Eleven')
msg.replace_header('First', 'One Hundred')
eq(msg.keys(), ['First', 'Second', 'Third', 'First'])
eq(msg.values(), ['One Hundred', 'Twenty', 'Three', 'Eleven'])
self.assertRaises(KeyError, msg.replace_header, 'Fourth', 'Missing')
def test_get_content_disposition(self):
msg = Message()
self.assertIsNone(msg.get_content_disposition())
msg.add_header('Content-Disposition', 'attachment',
filename='random.avi')
self.assertEqual(msg.get_content_disposition(), 'attachment')
msg.replace_header('Content-Disposition', 'inline')
self.assertEqual(msg.get_content_disposition(), 'inline')
msg.replace_header('Content-Disposition', 'InlinE')
self.assertEqual(msg.get_content_disposition(), 'inline')
# test_defect_handling:test_invalid_chars_in_base64_payload
def test_broken_base64_payload(self):
x = 'AwDp0P7//y6LwKEAcPa/6Q=9'
msg = Message()
msg['content-type'] = 'audio/x-midi'
msg['content-transfer-encoding'] = 'base64'
msg.set_payload(x)
self.assertEqual(msg.get_payload(decode=True),
(b'\x03\x00\xe9\xd0\xfe\xff\xff.\x8b\xc0'
b'\xa1\x00p\xf6\xbf\xe9\x0f'))
self.assertIsInstance(msg.defects[0],
errors.InvalidBase64CharactersDefect)
def test_broken_unicode_payload(self):
# This test improves coverage but is not a compliance test.
# The behavior in this situation is currently undefined by the API.
x = 'this is a br\xf6ken thing to do'
msg = Message()
msg['content-type'] = 'text/plain'
msg['content-transfer-encoding'] = '8bit'
msg.set_payload(x)
self.assertEqual(msg.get_payload(decode=True),
bytes(x, 'raw-unicode-escape'))
def test_questionable_bytes_payload(self):
# This test improves coverage but is not a compliance test,
# since it involves poking inside the black box.
x = 'this is a quéstionable thing to do'.encode('utf-8')
msg = Message()
msg['content-type'] = 'text/plain; charset="utf-8"'
msg['content-transfer-encoding'] = '8bit'
msg._payload = x
self.assertEqual(msg.get_payload(decode=True), x)
# Issue 1078919
def test_ascii_add_header(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment',
filename='bud.gif')
self.assertEqual('attachment; filename="bud.gif"',
msg['Content-Disposition'])
def test_noascii_add_header(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment',
filename="Fußballer.ppt")
self.assertEqual(
'attachment; filename*=utf-8\'\'Fu%C3%9Fballer.ppt',
msg['Content-Disposition'])
def test_nonascii_add_header_via_triple(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment',
filename=('iso-8859-1', '', 'Fußballer.ppt'))
self.assertEqual(
'attachment; filename*=iso-8859-1\'\'Fu%DFballer.ppt',
msg['Content-Disposition'])
def test_ascii_add_header_with_tspecial(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment',
filename="windows [filename].ppt")
self.assertEqual(
'attachment; filename="windows [filename].ppt"',
msg['Content-Disposition'])
def test_nonascii_add_header_with_tspecial(self):
msg = Message()
msg.add_header('Content-Disposition', 'attachment',
filename="Fußballer [filename].ppt")
self.assertEqual(
"attachment; filename*=utf-8''Fu%C3%9Fballer%20%5Bfilename%5D.ppt",
msg['Content-Disposition'])
def test_binary_quopri_payload(self):
for charset in ('latin-1', 'ascii'):
msg = Message()
msg['content-type'] = 'text/plain; charset=%s' % charset
msg['content-transfer-encoding'] = 'quoted-printable'
msg.set_payload(b'foo=e6=96=87bar')
self.assertEqual(
msg.get_payload(decode=True),
b'foo\xe6\x96\x87bar',
'get_payload returns wrong result with charset %s.' % charset)
def test_binary_base64_payload(self):
for charset in ('latin-1', 'ascii'):
msg = Message()
msg['content-type'] = 'text/plain; charset=%s' % charset
msg['content-transfer-encoding'] = 'base64'
msg.set_payload(b'Zm9v5paHYmFy')
self.assertEqual(
msg.get_payload(decode=True),
b'foo\xe6\x96\x87bar',
'get_payload returns wrong result with charset %s.' % charset)
def test_binary_uuencode_payload(self):
for charset in ('latin-1', 'ascii'):
for encoding in ('x-uuencode', 'uuencode', 'uue', 'x-uue'):
msg = Message()
msg['content-type'] = 'text/plain; charset=%s' % charset
msg['content-transfer-encoding'] = encoding
msg.set_payload(b"begin 666 -\n)9F]OYI:'8F%R\n \nend\n")
self.assertEqual(
msg.get_payload(decode=True),
b'foo\xe6\x96\x87bar',
str(('get_payload returns wrong result ',
'with charset {0} and encoding {1}.')).\
format(charset, encoding))
def test_add_header_with_name_only_param(self):
msg = Message()
msg.add_header('Content-Disposition', 'inline', foo_bar=None)
self.assertEqual("inline; foo-bar", msg['Content-Disposition'])
def test_add_header_with_no_value(self):
msg = Message()
msg.add_header('X-Status', None)
self.assertEqual('', msg['X-Status'])
# Issue 5871: reject an attempt to embed a header inside a header value
# (header injection attack).
def test_embedded_header_via_Header_rejected(self):
msg = Message()
msg['Dummy'] = Header('dummy\nX-Injected-Header: test')
self.assertRaises(errors.HeaderParseError, msg.as_string)
def test_embedded_header_via_string_rejected(self):
msg = Message()
msg['Dummy'] = 'dummy\nX-Injected-Header: test'
self.assertRaises(errors.HeaderParseError, msg.as_string)
def test_unicode_header_defaults_to_utf8_encoding(self):
# Issue 14291
m = MIMEText('abc\n')
m['Subject'] = 'É test'
self.assertEqual(str(m),textwrap.dedent("""\
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: =?utf-8?q?=C3=89_test?=
abc
"""))
def test_unicode_body_defaults_to_utf8_encoding(self):
# Issue 14291
m = MIMEText('É testabc\n')
self.assertEqual(str(m),textwrap.dedent("""\
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
w4kgdGVzdGFiYwo=
"""))
# Test the email.encoders module
class TestEncoders(unittest.TestCase):
def test_EncodersEncode_base64(self):
with openfile('PyBanner048.gif', 'rb') as fp:
bindata = fp.read()
mimed = email.mime.image.MIMEImage(bindata)
base64ed = mimed.get_payload()
# the transfer-encoded body lines should all be <=76 characters
lines = base64ed.split('\n')
self.assertLessEqual(max([ len(x) for x in lines ]), 76)
def test_encode_empty_payload(self):
eq = self.assertEqual
msg = Message()
msg.set_charset('us-ascii')
eq(msg['content-transfer-encoding'], '7bit')
def test_default_cte(self):
eq = self.assertEqual
# 7bit data and the default us-ascii _charset
msg = MIMEText('hello world')
eq(msg['content-transfer-encoding'], '7bit')
# Similar, but with 8bit data
msg = MIMEText('hello \xf8 world')
eq(msg['content-transfer-encoding'], 'base64')
# And now with a different charset
msg = MIMEText('hello \xf8 world', _charset='iso-8859-1')
eq(msg['content-transfer-encoding'], 'quoted-printable')
def test_encode7or8bit(self):
# Make sure a charset whose input character set is 8bit but
# whose output character set is 7bit gets a transfer-encoding
# of 7bit.
eq = self.assertEqual
msg = MIMEText('文\n', _charset='euc-jp')
eq(msg['content-transfer-encoding'], '7bit')
eq(msg.as_string(), textwrap.dedent("""\
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-2022-jp"
Content-Transfer-Encoding: 7bit
\x1b$BJ8\x1b(B
"""))
def test_qp_encode_latin1(self):
msg = MIMEText('\xe1\xf6\n', 'text', 'ISO-8859-1')
self.assertEqual(str(msg), textwrap.dedent("""\
MIME-Version: 1.0
Content-Type: text/text; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
=E1=F6
"""))
def test_qp_encode_non_latin1(self):
# Issue 16948
msg = MIMEText('\u017c\n', 'text', 'ISO-8859-2')
self.assertEqual(str(msg), textwrap.dedent("""\
MIME-Version: 1.0
Content-Type: text/text; charset="iso-8859-2"
Content-Transfer-Encoding: quoted-printable
=BF
"""))
# Test long header wrapping
class TestLongHeaders(TestEmailBase):
maxDiff = None
def test_split_long_continuation(self):
eq = self.ndiffAssertEqual
msg = email.message_from_string("""\
Subject: bug demonstration
\t12345678911234567892123456789312345678941234567895123456789612345678971234567898112345678911234567892123456789112345678911234567892123456789
\tmore text
test
""")
sfp = StringIO()
g = Generator(sfp)
g.flatten(msg)
eq(sfp.getvalue(), """\
Subject: bug demonstration
\t12345678911234567892123456789312345678941234567895123456789612345678971234567898112345678911234567892123456789112345678911234567892123456789
\tmore text
test
""")
def test_another_long_almost_unsplittable_header(self):
eq = self.ndiffAssertEqual
hstr = """\
bug demonstration
\t12345678911234567892123456789312345678941234567895123456789612345678971234567898112345678911234567892123456789112345678911234567892123456789
\tmore text"""
h = Header(hstr, continuation_ws='\t')
eq(h.encode(), """\
bug demonstration
\t12345678911234567892123456789312345678941234567895123456789612345678971234567898112345678911234567892123456789112345678911234567892123456789
\tmore text""")
h = Header(hstr.replace('\t', ' '))
eq(h.encode(), """\
bug demonstration
12345678911234567892123456789312345678941234567895123456789612345678971234567898112345678911234567892123456789112345678911234567892123456789
more text""")
def test_long_nonstring(self):
eq = self.ndiffAssertEqual
g = Charset("iso-8859-1")
cz = Charset("iso-8859-2")
utf8 = Charset("utf-8")
g_head = (b'Die Mieter treten hier ein werden mit einem Foerderband '
b'komfortabel den Korridor entlang, an s\xfcdl\xfcndischen '
b'Wandgem\xe4lden vorbei, gegen die rotierenden Klingen '
b'bef\xf6rdert. ')
cz_head = (b'Finan\xe8ni metropole se hroutily pod tlakem jejich '
b'd\xf9vtipu.. ')
utf8_head = ('\u6b63\u78ba\u306b\u8a00\u3046\u3068\u7ffb\u8a33\u306f'
'\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u4e00'
'\u90e8\u306f\u30c9\u30a4\u30c4\u8a9e\u3067\u3059\u304c'
'\u3001\u3042\u3068\u306f\u3067\u305f\u3089\u3081\u3067'
'\u3059\u3002\u5b9f\u969b\u306b\u306f\u300cWenn ist das '
'Nunstuck git und Slotermeyer? Ja! Beiherhund das Oder '
'die Flipperwaldt gersput.\u300d\u3068\u8a00\u3063\u3066'
'\u3044\u307e\u3059\u3002')
h = Header(g_head, g, header_name='Subject')
h.append(cz_head, cz)
h.append(utf8_head, utf8)
msg = Message()
msg['Subject'] = h
sfp = StringIO()
g = Generator(sfp)
g.flatten(msg)
eq(sfp.getvalue(), """\
Subject: =?iso-8859-1?q?Die_Mieter_treten_hier_ein_werden_mit_einem_Foerderb?=
=?iso-8859-1?q?and_komfortabel_den_Korridor_entlang=2C_an_s=FCdl=FCndischen?=
=?iso-8859-1?q?_Wandgem=E4lden_vorbei=2C_gegen_die_rotierenden_Klingen_bef?=
=?iso-8859-1?q?=F6rdert=2E_?= =?iso-8859-2?q?Finan=E8ni_metropole_se_hrouti?=
=?iso-8859-2?q?ly_pod_tlakem_jejich_d=F9vtipu=2E=2E_?= =?utf-8?b?5q2j56K6?=
=?utf-8?b?44Gr6KiA44GG44Go57+76Kiz44Gv44GV44KM44Gm44GE44G+44Gb44KT44CC5LiA?=
=?utf-8?b?6YOo44Gv44OJ44Kk44OE6Kqe44Gn44GZ44GM44CB44GC44Go44Gv44Gn44Gf44KJ?=
=?utf-8?b?44KB44Gn44GZ44CC5a6f6Zqb44Gr44Gv44CMV2VubiBpc3QgZGFzIE51bnN0dWNr?=
=?utf-8?b?IGdpdCB1bmQgU2xvdGVybWV5ZXI/IEphISBCZWloZXJodW5kIGRhcyBPZGVyIGRp?=
=?utf-8?b?ZSBGbGlwcGVyd2FsZHQgZ2Vyc3B1dC7jgI3jgajoqIDjgaPjgabjgYTjgb7jgZk=?=
=?utf-8?b?44CC?=
""")
eq(h.encode(maxlinelen=76), """\
=?iso-8859-1?q?Die_Mieter_treten_hier_ein_werden_mit_einem_Foerde?=
=?iso-8859-1?q?rband_komfortabel_den_Korridor_entlang=2C_an_s=FCdl=FCndis?=
=?iso-8859-1?q?chen_Wandgem=E4lden_vorbei=2C_gegen_die_rotierenden_Klinge?=
=?iso-8859-1?q?n_bef=F6rdert=2E_?= =?iso-8859-2?q?Finan=E8ni_metropole_se?=
=?iso-8859-2?q?_hroutily_pod_tlakem_jejich_d=F9vtipu=2E=2E_?=
=?utf-8?b?5q2j56K644Gr6KiA44GG44Go57+76Kiz44Gv44GV44KM44Gm44GE44G+44Gb?=
=?utf-8?b?44KT44CC5LiA6YOo44Gv44OJ44Kk44OE6Kqe44Gn44GZ44GM44CB44GC44Go?=
=?utf-8?b?44Gv44Gn44Gf44KJ44KB44Gn44GZ44CC5a6f6Zqb44Gr44Gv44CMV2VubiBp?=
=?utf-8?b?c3QgZGFzIE51bnN0dWNrIGdpdCB1bmQgU2xvdGVybWV5ZXI/IEphISBCZWlo?=
=?utf-8?b?ZXJodW5kIGRhcyBPZGVyIGRpZSBGbGlwcGVyd2FsZHQgZ2Vyc3B1dC7jgI0=?=
=?utf-8?b?44Go6KiA44Gj44Gm44GE44G+44GZ44CC?=""")
def test_long_header_encode(self):
eq = self.ndiffAssertEqual
h = Header('wasnipoop; giraffes="very-long-necked-animals"; '
'spooge="yummy"; hippos="gargantuan"; marshmallows="gooey"',
header_name='X-Foobar-Spoink-Defrobnit')
eq(h.encode(), '''\
wasnipoop; giraffes="very-long-necked-animals";
spooge="yummy"; hippos="gargantuan"; marshmallows="gooey"''')
def test_long_header_encode_with_tab_continuation_is_just_a_hint(self):
eq = self.ndiffAssertEqual
h = Header('wasnipoop; giraffes="very-long-necked-animals"; '
'spooge="yummy"; hippos="gargantuan"; marshmallows="gooey"',
header_name='X-Foobar-Spoink-Defrobnit',
continuation_ws='\t')
eq(h.encode(), '''\
wasnipoop; giraffes="very-long-necked-animals";
spooge="yummy"; hippos="gargantuan"; marshmallows="gooey"''')
def test_long_header_encode_with_tab_continuation(self):
eq = self.ndiffAssertEqual
h = Header('wasnipoop; giraffes="very-long-necked-animals";\t'
'spooge="yummy"; hippos="gargantuan"; marshmallows="gooey"',
header_name='X-Foobar-Spoink-Defrobnit',
continuation_ws='\t')
eq(h.encode(), '''\
wasnipoop; giraffes="very-long-necked-animals";
\tspooge="yummy"; hippos="gargantuan"; marshmallows="gooey"''')
def test_header_encode_with_different_output_charset(self):
h = Header('文', 'euc-jp')
self.assertEqual(h.encode(), "=?iso-2022-jp?b?GyRCSjgbKEI=?=")
def test_long_header_encode_with_different_output_charset(self):
h = Header(b'test-ja \xa4\xd8\xc5\xea\xb9\xc6\xa4\xb5\xa4\xec\xa4'
b'\xbf\xa5\xe1\xa1\xbc\xa5\xeb\xa4\xcf\xbb\xca\xb2\xf1\xbc\xd4'
b'\xa4\xce\xbe\xb5\xc7\xa7\xa4\xf2\xc2\xd4\xa4\xc3\xa4\xc6\xa4'
b'\xa4\xa4\xde\xa4\xb9'.decode('euc-jp'), 'euc-jp')
res = """\
=?iso-2022-jp?b?dGVzdC1qYSAbJEIkWEVqOUYkNSRsJD8lYSE8JWskTztKMnE8VCROPjUbKEI=?=
=?iso-2022-jp?b?GyRCRyckckJUJEMkRiQkJF4kORsoQg==?="""
self.assertEqual(h.encode(), res)