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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport io import textwrap import unittest from email import message_from_string, message_from_bytes from email.message import EmailMessage from email.generator import Generator, BytesGenerator from email.headerregistry import Address from email import policy from test.test_email import TestEmailBase, parameterize @parameterize class TestGeneratorBase: policy = policy.default def msgmaker(self, msg, policy=None): policy = self.policy if policy is None else policy return self.msgfunc(msg, policy=policy) refold_long_expected = { 0: textwrap.dedent("""\ To: whom_it_may_concern@example.com From: nobody_you_want_to_know@example.com Subject: We the willing led by the unknowing are doing the impossible for the ungrateful. We have done so much for so long with so little we are now qualified to do anything with nothing. None """), 40: textwrap.dedent("""\ To: whom_it_may_concern@example.com From: nobody_you_want_to_know@example.com Subject: We the willing led by the unknowing are doing the impossible for the ungrateful. We have done so much for so long with so little we are now qualified to do anything with nothing. None """), 20: textwrap.dedent("""\ To: whom_it_may_concern@example.com From: nobody_you_want_to_know@example.com Subject: We the willing led by the unknowing are doing the impossible for the ungrateful. We have done so much for so long with so little we are now qualified to do anything with nothing. None """), } refold_long_expected[100] = refold_long_expected[0] refold_all_expected = refold_long_expected.copy() refold_all_expected[0] = ( "To: whom_it_may_concern@example.com\n" "From: nobody_you_want_to_know@example.com\n" "Subject: We the willing led by the unknowing are doing the " "impossible for the ungrateful. We have done so much for " "so long with so little we are now qualified to do anything " "with nothing.\n" "\n" "None\n") refold_all_expected[100] = ( "To: whom_it_may_concern@example.com\n" "From: nobody_you_want_to_know@example.com\n" "Subject: We the willing led by the unknowing are doing the " "impossible for the ungrateful. We have\n" " done so much for so long with so little we are now qualified " "to do anything with nothing.\n" "\n" "None\n") length_params = [n for n in refold_long_expected] def length_as_maxheaderlen_parameter(self, n): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, maxheaderlen=n, policy=self.policy) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_long_expected[n])) def length_as_max_line_length_policy(self, n): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, policy=self.policy.clone(max_line_length=n)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_long_expected[n])) def length_as_maxheaderlen_parm_overrides_policy(self, n): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, maxheaderlen=n, policy=self.policy.clone(max_line_length=10)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_long_expected[n])) def length_as_max_line_length_with_refold_none_does_not_fold(self, n): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, policy=self.policy.clone(refold_source='none', max_line_length=n)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_long_expected[0])) def length_as_max_line_length_with_refold_all_folds(self, n): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, policy=self.policy.clone(refold_source='all', max_line_length=n)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_all_expected[n])) def test_crlf_control_via_policy(self): source = "Subject: test\r\n\r\ntest body\r\n" expected = source msg = self.msgmaker(self.typ(source)) s = self.ioclass() g = self.genclass(s, policy=policy.SMTP) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(expected)) def test_flatten_linesep_overrides_policy(self): source = "Subject: test\n\ntest body\n" expected = source msg = self.msgmaker(self.typ(source)) s = self.ioclass() g = self.genclass(s, policy=policy.SMTP) g.flatten(msg, linesep='\n') self.assertEqual(s.getvalue(), self.typ(expected)) def test_set_mangle_from_via_policy(self): source = textwrap.dedent("""\ Subject: test that from is mangled in the body! From time to time I write a rhyme. """) variants = ( (None, True), (policy.compat32, True), (policy.default, False), (policy.default.clone(mangle_from_=True), True), ) for p, mangle in variants: expected = source.replace('From ', '>From ') if mangle else source with self.subTest(policy=p, mangle_from_=mangle): msg = self.msgmaker(self.typ(source)) s = self.ioclass() g = self.genclass(s, policy=p) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(expected)) def test_compat32_max_line_length_does_not_fold_when_none(self): msg = self.msgmaker(self.typ(self.refold_long_expected[0])) s = self.ioclass() g = self.genclass(s, policy=policy.compat32.clone(max_line_length=None)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(self.refold_long_expected[0])) def test_rfc2231_wrapping(self): # This is pretty much just to make sure we don't have an infinite # loop; I don't expect anyone to hit this in the field. msg = self.msgmaker(self.typ(textwrap.dedent("""\ To: nobody Content-Disposition: attachment; filename="afilenamelongenoghtowraphere" None """))) expected = textwrap.dedent("""\ To: nobody Content-Disposition: attachment; filename*0*=us-ascii''afilename; filename*1*=longenoghtowraphere None """) s = self.ioclass() g = self.genclass(s, policy=self.policy.clone(max_line_length=33)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(expected)) def test_rfc2231_wrapping_switches_to_default_len_if_too_narrow(self): # This is just to make sure we don't have an infinite loop; I don't # expect anyone to hit this in the field, so I'm not bothering to make # the result optimal (the encoding isn't needed). msg = self.msgmaker(self.typ(textwrap.dedent("""\ To: nobody Content-Disposition: attachment; filename="afilenamelongenoghtowraphere" None """))) expected = textwrap.dedent("""\ To: nobody Content-Disposition: attachment; filename*0*=us-ascii''afilenamelongenoghtowraphere None """) s = self.ioclass() g = self.genclass(s, policy=self.policy.clone(max_line_length=20)) g.flatten(msg) self.assertEqual(s.getvalue(), self.typ(expected)) class TestGenerator(TestGeneratorBase, TestEmailBase): msgfunc = staticmethod(message_from_string) genclass = Generator ioclass = io.StringIO typ = str class TestBytesGenerator(TestGeneratorBase, TestEmailBase): msgfunc = staticmethod(message_from_bytes) genclass = BytesGenerator ioclass = io.BytesIO typ = lambda self, x: x.encode('ascii') def test_cte_type_7bit_handles_unknown_8bit(self): source = ("Subject: Maintenant je vous présente mon " "collègue\n\n").encode('utf-8') expected = ('Subject: Maintenant je vous =?unknown-8bit?q?' 'pr=C3=A9sente_mon_coll=C3=A8gue?=\n\n').encode('ascii') msg = message_from_bytes(source) s = io.BytesIO() g = BytesGenerator(s, policy=self.policy.clone(cte_type='7bit')) g.flatten(msg) self.assertEqual(s.getvalue(), expected) def test_cte_type_7bit_transforms_8bit_cte(self): source = textwrap.dedent("""\ From: foo@bar.com To: Dinsdale Subject: Nudge nudge, wink, wink Mime-Version: 1.0 Content-Type: text/plain; charset="latin-1" Content-Transfer-Encoding: 8bit oh là là, know what I mean, know what I mean? """).encode('latin1') msg = message_from_bytes(source) expected = textwrap.dedent("""\ From: foo@bar.com To: Dinsdale Subject: Nudge nudge, wink, wink Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable oh l=E0 l=E0, know what I mean, know what I mean? """).encode('ascii') s = io.BytesIO() g = BytesGenerator(s, policy=self.policy.clone(cte_type='7bit', linesep='\n')) g.flatten(msg) self.assertEqual(s.getvalue(), expected) def test_smtputf8_policy(self): msg = EmailMessage() msg['From'] = "Páolo " msg['To'] = 'Dinsdale' msg['Subject'] = 'Nudge nudge, wink, wink \u1F609' msg.set_content("oh là là, know what I mean, know what I mean?") expected = textwrap.dedent("""\ From: Páolo To: Dinsdale Subject: Nudge nudge, wink, wink \u1F609 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit MIME-Version: 1.0 oh là là, know what I mean, know what I mean? """).encode('utf-8').replace(b'\n', b'\r\n') s = io.BytesIO() g = BytesGenerator(s, policy=policy.SMTPUTF8) g.flatten(msg) self.assertEqual(s.getvalue(), expected) def test_smtp_policy(self): msg = EmailMessage() msg["From"] = Address(addr_spec="foo@bar.com", display_name="Páolo") msg["To"] = Address(addr_spec="bar@foo.com", display_name="Dinsdale") msg["Subject"] = "Nudge nudge, wink, wink" msg.set_content("oh boy, know what I mean, know what I mean?") expected = textwrap.dedent("""\ From: =?utf-8?q?P=C3=A1olo?= To: Dinsdale Subject: Nudge nudge, wink, wink Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit MIME-Version: 1.0 oh boy, know what I mean, know what I mean? """).encode().replace(b"\n", b"\r\n") s = io.BytesIO() g = BytesGenerator(s, policy=policy.SMTP) g.flatten(msg) self.assertEqual(s.getvalue(), expected) if __name__ == '__main__': unittest.main()