diff options
| -rw-r--r-- | Lib/smtplib.py | 13 | ||||
| -rw-r--r-- | Lib/test/test_smtplib.py | 74 | ||||
| -rw-r--r-- | Misc/NEWS | 4 |
3 files changed, 80 insertions, 11 deletions
diff --git a/Lib/smtplib.py b/Lib/smtplib.py index c949d77..562a182 100644 --- a/Lib/smtplib.py +++ b/Lib/smtplib.py @@ -751,7 +751,10 @@ class SMTP: esmtp_opts.append(option) (code, resp) = self.mail(from_addr, esmtp_opts) if code != 250: - self.rset() + if code == 421: + self.close() + else: + self.rset() raise SMTPSenderRefused(code, resp, from_addr) senderrs = {} if isinstance(to_addrs, str): @@ -760,13 +763,19 @@ class SMTP: (code, resp) = self.rcpt(each, rcpt_options) if (code != 250) and (code != 251): senderrs[each] = (code, resp) + if code == 421: + self.close() + raise SMTPRecipientsRefused(senderrs) if len(senderrs) == len(to_addrs): # the server refused all our recipients self.rset() raise SMTPRecipientsRefused(senderrs) (code, resp) = self.data(msg) if code != 250: - self.rset() + if code == 421: + self.close() + else: + self.rset() raise SMTPDataError(code, resp) #if we got here then somebody got our mail return senderrs diff --git a/Lib/test/test_smtplib.py b/Lib/test/test_smtplib.py index befc49e..c0d9dbd 100644 --- a/Lib/test/test_smtplib.py +++ b/Lib/test/test_smtplib.py @@ -592,8 +592,12 @@ sim_lists = {'list-1':['Mr.A@somewhere.com','Mrs.C@somewhereesle.com'], # Simulated SMTP channel & server class SimSMTPChannel(smtpd.SMTPChannel): - # For testing failures in QUIT when using the context manager API. quit_response = None + mail_response = None + rcpt_response = None + data_response = None + rcpt_count = 0 + rset_count = 0 def __init__(self, extra_features, *args, **kw): self._extrafeatures = ''.join( @@ -608,6 +612,8 @@ class SimSMTPChannel(smtpd.SMTPChannel): '250-DELIVERBY\r\n') resp = resp + self._extrafeatures + '250 HELP' self.push(resp) + self.seen_greeting = arg + self.extended_smtp = True def smtp_VRFY(self, arg): # For max compatibility smtplib should be sending the raw address. @@ -646,30 +652,50 @@ class SimSMTPChannel(smtpd.SMTPChannel): self.push('550 No access for you!') def smtp_QUIT(self, arg): - # args is ignored if self.quit_response is None: super(SimSMTPChannel, self).smtp_QUIT(arg) else: self.push(self.quit_response) self.close_when_done() + def smtp_MAIL(self, arg): + if self.mail_response is None: + super().smtp_MAIL(arg) + else: + self.push(self.mail_response) + + def smtp_RCPT(self, arg): + if self.rcpt_response is None: + super().smtp_RCPT(arg) + return + self.push(self.rcpt_response[self.rcpt_count]) + self.rcpt_count += 1 + + def smtp_RSET(self, arg): + super().smtp_RSET(arg) + self.rset_count += 1 + + def smtp_DATA(self, arg): + if self.data_response is None: + super().smtp_DATA(arg) + else: + self.push(self.data_response) + def handle_error(self): raise class SimSMTPServer(smtpd.SMTPServer): - # For testing failures in QUIT when using the context manager API. - quit_response = None + channel_class = SimSMTPChannel def __init__(self, *args, **kw): self._extra_features = [] smtpd.SMTPServer.__init__(self, *args, **kw) def handle_accepted(self, conn, addr): - self._SMTPchannel = SimSMTPChannel( + self._SMTPchannel = self.channel_class( self._extra_features, self, conn, addr) - self._SMTPchannel.quit_response = self.quit_response def process_message(self, peer, mailfrom, rcpttos, data): pass @@ -809,18 +835,48 @@ class SMTPSimTests(unittest.TestCase): self.assertRaises(smtplib.SMTPServerDisconnected, smtp.send, b'foo') def test_with_statement_QUIT_failure(self): - self.serv.quit_response = '421 QUIT FAILED' with self.assertRaises(smtplib.SMTPResponseException) as error: with smtplib.SMTP(HOST, self.port) as smtp: + self.serv._SMTPchannel.quit_response = '421 QUIT FAILED' smtp.noop() self.assertEqual(error.exception.smtp_code, 421) self.assertEqual(error.exception.smtp_error, b'QUIT FAILED') - # We don't need to clean up self.serv.quit_response because a new - # server is always instantiated in the setUp(). #TODO: add tests for correct AUTH method fallback now that the #test infrastructure can support it. + # Issue 5713: make sure close, not rset, is called if we get a 421 error + def test_421_from_mail_cmd(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', timeout=15) + self.serv._SMTPchannel.mail_response = '421 closing connection' + with self.assertRaises(smtplib.SMTPSenderRefused): + smtp.sendmail('John', 'Sally', 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rcpt_count, 0) + + def test_421_from_rcpt_cmd(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', timeout=15) + self.serv._SMTPchannel.rcpt_response = ['250 accepted', '421 closing'] + with self.assertRaises(smtplib.SMTPRecipientsRefused) as r: + smtp.sendmail('John', ['Sally', 'Frank', 'George'], 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rset_count, 0) + self.assertDictEqual(r.exception.args[0], {'Frank': (421, b'closing')}) + + def test_421_from_data_cmd(self): + class MySimSMTPChannel(SimSMTPChannel): + def found_terminator(self): + if self.smtp_state == self.DATA: + self.push('421 closing') + else: + super().found_terminator() + self.serv.channel_class = MySimSMTPChannel + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', timeout=15) + with self.assertRaises(smtplib.SMTPDataError): + smtp.sendmail('John@foo.org', ['Sally@foo.org'], 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rcpt_count, 0) + @support.reap_threads def test_main(verbose=None): @@ -196,6 +196,10 @@ Core and Builtins Library ------- +- Issue #5713: smtplib now handles 421 (closing connection) error codes when + sending mail by closing the socket and reporting the 421 error code via the + exception appropriate to the command that received the error response. + - Issue #17192: Update the ctypes module's libffi to v3.0.13. This specifically addresses a stack misalignment issue on x86 and issues on some more recent platforms. |