def handle_mail(state: State, arguments: str) -> Reply:
if arguments[:5].upper() != "FROM:":
return handle_wrong_arguments()
try:
path, rest = parse_reverse_path(arguments[5:])
except ValueError as exc:
return handle_wrong_arguments(str(exc))
if not is_valid_smtp_arguments(rest):
return handle_wrong_arguments()
if not state.greeted:
return handle_no_greeting()
if not state.mail_allowed:
return handle_bad_command_sequence()
state.clear()
state.reverse_path = path
return SMTPStatus.OK, "Sender OK"
def test_invalid_domain(self) -> None:
with pytest.raises(ValueError):
parse_reverse_path("<foo@*>")
def test_empty_path(self) -> None:
path, rest = parse_reverse_path("<>")
assert path == ""
assert rest == ""
def test_missing_at(self) -> None:
with pytest.raises(ValueError):
parse_reverse_path("<invalid>")
def test_invalid_local_part(self) -> None:
with pytest.raises(ValueError):
parse_reverse_path("<@@example.com>")
def test_invalid(self) -> None:
with pytest.raises(ValueError):
parse_reverse_path("INVALID")
def test_quoted_string(self) -> None:
path, rest = parse_reverse_path('<"foo \\" bar"@example.com>')
assert path == '"foo \\" bar"@example.com'
assert rest == ""
def test_mailbox_with_rest(self) -> None:
path, rest = parse_reverse_path("<*****@*****.**>REST")
assert path == "*****@*****.**"
assert rest == "REST"
def test_mailbox(self) -> None:
path, rest = parse_reverse_path("<*****@*****.**>")
assert path == "*****@*****.**"
assert rest == ""
def test_empty_path_with_rest(self) -> None:
path, rest = parse_reverse_path("<>REST")
assert path == ""
assert rest == "REST"