[3.12] gh-106669: Revert "gh-102988: Detect email address parsing errors ... (GH-105127)" (GH-106733) (#106941)

This reverts commit 18dfbd035775c15533d13a98e56b1d2bf5c65f00.
Adds a regression test from the issue.

See https://github.com/python/cpython/issues/106669..
(cherry picked from commit a31dea1feb61793e48fa9aa5014f358352205c1d)

1 files changed, 19 insertions, 77 deletions

diff --git a/Lib/test/test_email/test_email.py b/Lib/test/test_email/test_email.py
index 5238944..b4f3a24 100644
--- a/Lib/test/test_email/test_email.py
+++ b/Lib/test/test_email/test_email.py
@@ -3319,90 +3319,32 @@ Foo
            [('Al Person', 'aperson@dom.ain'),
             ('Bud Person', 'bperson@dom.ain')])
 
-    def test_getaddresses_parsing_errors(self):
-        """Test for parsing errors from CVE-2023-27043"""
-        eq = self.assertEqual
-        eq(utils.getaddresses(['alice@example.org(<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org)<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org<<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org><bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org@<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org,<bob@example.com>']),
-           [('', 'alice@example.org'), ('', 'bob@example.com')])
-        eq(utils.getaddresses(['alice@example.org;<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org:<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org.<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org"<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org[<bob@example.com>']),
-           [('', '')])
-        eq(utils.getaddresses(['alice@example.org]<bob@example.com>']),
-           [('', '')])
-
-    def test_parseaddr_parsing_errors(self):
-        """Test for parsing errors from CVE-2023-27043"""
-        eq = self.assertEqual
-        eq(utils.parseaddr(['alice@example.org(<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org)<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org<<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org><bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org@<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org,<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org;<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org:<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org.<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org"<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org[<bob@example.com>']),
-           ('', ''))
-        eq(utils.parseaddr(['alice@example.org]<bob@example.com>']),
-           ('', ''))
+    def test_getaddresses_comma_in_name(self):
+        """GH-106669 regression test."""
+        self.assertEqual(
+            utils.getaddresses(
+                [
+                    '"Bud, Person" <bperson@dom.ain>',
+                    'aperson@dom.ain (Al Person)',
+                    '"Mariusz Felisiak" <to@example.com>',
+                ]
+            ),
+            [
+                ('Bud, Person', 'bperson@dom.ain'),
+                ('Al Person', 'aperson@dom.ain'),
+                ('Mariusz Felisiak', 'to@example.com'),
+            ],
+        )
 
     def test_getaddresses_nasty(self):
         eq = self.assertEqual
         eq(utils.getaddresses(['foo: ;']), [('', '')])
-        eq(utils.getaddresses(['[]*-- =~$']), [('', '')])
+        eq(utils.getaddresses(
+           ['[]*-- =~$']),
+           [('', ''), ('', ''), ('', '*--')])
         eq(utils.getaddresses(
            ['foo: ;', '"Jason R. Mastaler" <jason@dom.ain>']),
            [('', ''), ('Jason R. Mastaler', 'jason@dom.ain')])
-        eq(utils.getaddresses(
-           [r'Pete(A nice \) chap) <pete(his account)@silly.test(his host)>']),
-           [('Pete (A nice ) chap his account his host)', 'pete@silly.test')])
-        eq(utils.getaddresses(
-           ['(Empty list)(start)Undisclosed recipients  :(nobody(I know))']),
-           [('', '')])
-        eq(utils.getaddresses(
-           ['Mary <@machine.tld:mary@example.net>, , jdoe@test   . example']),
-           [('Mary', 'mary@example.net'), ('', ''), ('', 'jdoe@test.example')])
-        eq(utils.getaddresses(
-           ['John Doe <jdoe@machine(comment).  example>']),
-           [('John Doe (comment)', 'jdoe@machine.example')])
-        eq(utils.getaddresses(
-           ['"Mary Smith: Personal Account" <smith@home.example>']),
-           [('Mary Smith: Personal Account', 'smith@home.example')])
-        eq(utils.getaddresses(
-           ['Undisclosed recipients:;']),
-           [('', '')])
-        eq(utils.getaddresses(
-           [r'<boss@nil.test>, "Giant; \"Big\" Box" <bob@example.net>']),
-           [('', 'boss@nil.test'), ('Giant; "Big" Box', 'bob@example.net')])
 
     def test_getaddresses_embedded_comment(self):
         """Test proper handling of a nested comment"""