from test import support # If we end up with a significant number of tests that don't require # threading, this test module should be split. Right now we skip # them all if we don't have threading. threading = support.import_module('threading') from contextlib import contextmanager import imaplib import os.path import socketserver import time import calendar from test.support import (reap_threads, verbose, transient_internet, run_with_tz, run_with_locale) import unittest from datetime import datetime, timezone, timedelta try: import ssl except ImportError: ssl = None CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "keycert3.pem") CAFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "pycacert.pem") class TestImaplib(unittest.TestCase): def test_Internaldate2tuple(self): t0 = calendar.timegm((2000, 1, 1, 0, 0, 0, -1, -1, -1)) tt = imaplib.Internaldate2tuple( b'25 (INTERNALDATE "01-Jan-2000 00:00:00 +0000")') self.assertEqual(time.mktime(tt), t0) tt = imaplib.Internaldate2tuple( b'25 (INTERNALDATE "01-Jan-2000 11:30:00 +1130")') self.assertEqual(time.mktime(tt), t0) tt = imaplib.Internaldate2tuple( b'25 (INTERNALDATE "31-Dec-1999 12:30:00 -1130")') self.assertEqual(time.mktime(tt), t0) @run_with_tz('MST+07MDT,M4.1.0,M10.5.0') def test_Internaldate2tuple_issue10941(self): self.assertNotEqual(imaplib.Internaldate2tuple( b'25 (INTERNALDATE "02-Apr-2000 02:30:00 +0000")'), imaplib.Internaldate2tuple( b'25 (INTERNALDATE "02-Apr-2000 03:30:00 +0000")')) def timevalues(self): return [2000000000, 2000000000.0, time.localtime(2000000000), (2033, 5, 18, 5, 33, 20, -1, -1, -1), (2033, 5, 18, 5, 33, 20, -1, -1, 1), datetime.fromtimestamp(2000000000, timezone(timedelta(0, 2 * 60 * 60))), '"18-May-2033 05:33:20 +0200"'] @run_with_locale('LC_ALL', 'de_DE', 'fr_FR') @run_with_tz('STD-1DST') def test_Time2Internaldate(self): expected = '"18-May-2033 05:33:20 +0200"' for t in self.timevalues(): internal = imaplib.Time2Internaldate(t) self.assertEqual(internal, expected) def test_that_Time2Internaldate_returns_a_result(self): # Without tzset, we can check only that it successfully # produces a result, not the correctness of the result itself, # since the result depends on the timezone the machine is in. for t in self.timevalues(): imaplib.Time2Internaldate(t) if ssl: class SecureTCPServer(socketserver.TCPServer): def get_request(self): newsocket, fromaddr = self.socket.accept() connstream = ssl.wrap_socket(newsocket, server_side=True, certfile=CERTFILE) return connstream, fromaddr IMAP4_SSL = imaplib.IMAP4_SSL else: class SecureTCPServer: pass IMAP4_SSL = None class SimpleIMAPHandler(socketserver.StreamRequestHandler): timeout = 1 continuation = None capabilities = '' def setup(self): super().setup() self.server.logged = None def _send(self, message): if verbose: print("SENT: %r" % message.strip()) self.wfile.write(message) def _send_line(self, message): self._send(message + b'\r\n') def _send_textline(self, message): self._send_line(message.encode('ASCII')) def _send_tagged(self, tag, code, message): self._send_textline(' '.join((tag, code, message))) def handle(self): # Send a welcome message. self._send_textline('* OK IMAP4rev1') while 1: # Gather up input until we receive a line terminator or we timeout. # Accumulate read(1) because it's simpler to handle the differences # between naked sockets and SSL sockets. line = b'' while 1: try: part = self.rfile.read(1) if part == b'': # Naked sockets return empty strings.. return line += part except OSError: # ..but SSLSockets raise exceptions. return if line.endswith(b'\r\n'): break if verbose: print('GOT: %r' % line.strip()) if self.continuation: try: self.continuation.send(line) except StopIteration: self.continuation = None continue splitline = line.decode('ASCII').split() tag = splitline[0] cmd = splitline[1] args = splitline[2:] if hasattr(self, 'cmd_' + cmd): continuation = getattr(self, 'cmd_' + cmd)(tag, args) if continuation: self.continuation = continuation next(continuation) else: self._send_tagged(tag, 'BAD', cmd + ' unknown') def cmd_CAPABILITY(self, tag, args): caps = ('IMAP4rev1 ' + self.capabilities if self.capabilities else 'IMAP4rev1') self._send_textline('* CAPABILITY ' + caps) self._send_tagged(tag, 'OK', 'CAPABILITY completed') def cmd_LOGOUT(self, tag, args): self.server.logged = None self._send_textline('* BYE IMAP4ref1 Server logging out') self._send_tagged(tag, 'OK', 'LOGOUT completed') def cmd_LOGIN(self, tag, args): self.server.logged = args[0] self._send_tagged(tag, 'OK', 'LOGIN completed') class ThreadedNetworkedTests(unittest.TestCase): server_class = socketserver.TCPServer imap_class = imaplib.IMAP4 def make_server(self, addr, hdlr): class MyServer(self.server_class): def handle_error(self, request, client_address): self.close_request(request) self.server_close() raise if verbose: print("creating server") server = MyServer(addr, hdlr) self.assertEqual(server.server_address, server.socket.getsockname()) if verbose: print("server created") print("ADDR =", addr) print("CLASS =", self.server_class) print("HDLR =", server.RequestHandlerClass) t = threading.Thread( name='%s serving' % self.server_class, target=server.serve_forever, # Short poll interval to make the test finish quickly. # Time between requests is short enough that we won't wake # up spuriously too many times. kwargs={'poll_interval': 0.01}) t.daemon = True # In case this function raises. t.start() if verbose: print("server running") return server, t def reap_server(self, server, thread): if verbose: print("waiting for server") server.shutdown() server.server_close() thread.join() if verbose: print("done") @contextmanager def reaped_server(self, hdlr): server, thread = self.make_server((support.HOST, 0), hdlr) try: yield server finally: self.reap_server(server, thread) @contextmanager def reaped_pair(self, hdlr): with self.reaped_server(hdlr) as server: client = self.imap_class(*server.server_address) try: yield server, client finally: client.logout() @reap_threads def test_connect(self): with self.reaped_server(SimpleIMAPHandler) as server: client = self.imap_class(*server.server_address) client.shutdown() @reap_threads def test_issue5949(self): class EOFHandler(socketserver.StreamRequestHandler): def handle(self): # EOF without sending a complete welcome message. self.wfile.write(b'* OK') with self.reaped_server(EOFHandler) as server: self.assertRaises(imaplib.IMAP4.abort, self.imap_class, *server.server_address) @reap_threads def test_line_termination(self): class BadNewlineHandler(SimpleIMAPHandler): def cmd_CAPABILITY(self, tag, args): self._send(b'* CAPABILITY IMAP4rev1 AUTH\n') self._send_tagged(tag, 'OK', 'CAPABILITY completed') with self.reaped_server(BadNewlineHandler) as server: self.assertRaises(imaplib.IMAP4.abort, self.imap_class, *server.server_address) @reap_threads def test_bad_auth_name(self): class MyServer(SimpleIMAPHandler): def cmd_AUTHENTICATE(self, tag, args): self._send_tagged(tag, 'NO', 'unrecognized authentication ' 'type {}'.format(args[0])) with self.reaped_pair(MyServer) as (server, client): with self.assertRaises(imaplib.IMAP4.error): client.authenticate('METHOD', lambda: 1) @reap_threads def test_invalid_authentication(self): class MyServer(SimpleIMAPHandler): def cmd_AUTHENTICATE(self, tag, args): self._send_textline('+') self.response = yield self._send_tagged(tag, 'NO', '[AUTHENTICATIONFAILED] invalid') with self.reaped_pair(MyServer) as (server, client): with self.assertRaises(imaplib.IMAP4.error): code, data = client.authenticate('MYAUTH', lambda x: b'fake') @reap_threads def test_valid_authentication(self): class MyServer(SimpleIMAPHandler): def cmd_AUTHENTICATE(self, tag, args): self._send_textline('+') self.server.response = yield self._send_tagged(tag, 'OK', 'FAKEAUTH successful') with self.reaped_pair(MyServer) as (server, client): code, data = client.authenticate('MYAUTH', lambda x: b'fake') self.assertEqual(code, 'OK') self.assertEqual(server.response, b'ZmFrZQ==\r\n') # b64 encoded 'fake' with self.reaped_pair(MyServer) as (server, client): code, data = client.authenticate('MYAUTH', lambda x: 'fake') self.assertEqual(code, 'OK') self.assertEqual(server.response, b'ZmFrZQ==\r\n') # b64 encoded 'fake' @reap_threads def test_login_cram_md5(self): class AuthHandler(SimpleIMAPHandler): capabilities = 'LOGINDISABLED AUTH=CRAM-MD5' def cmd_AUTHENTICATE(self, tag, args): self._send_textline('+ PDE4OTYuNjk3MTcwOTUyQHBvc3RvZmZpY2Uucm' 'VzdG9uLm1jaS5uZXQ=') r = yield if (r == b'dGltIGYxY2E2YmU0NjRiOWVmYT' b'FjY2E2ZmZkNmNmMmQ5ZjMy\r\n'): self._send_tagged(tag, 'OK', 'CRAM-MD5 successful') else: self._send_tagged(tag, 'NO', 'No access') with self.reaped_pair(AuthHandler) as (server, client): self.assertTrue('AUTH=CRAM-MD5' in client.capabilities) ret, data = client.login_cram_md5("tim", "tanstaaftanstaaf") self.assertEqual(ret, "OK") with self.reaped_pair(AuthHandler) as (server, client): self.assertTrue('AUTH=CRAM-MD5' in client.capabilities) ret, data = client.login_cram_md5("tim", b"tanstaaftanstaaf") self.assertEqual(ret, "OK") def test_linetoolong(self): class TooLongHandler(SimpleIMAPHandler): def handle(self): # Send a very long response line self.wfile.write(b'* OK ' + imaplib._MAXLINE * b'x' + b'\r\n') with self.reaped_server(TooLongHandler) as server: self.assertRaises(imaplib.IMAP4.error, self.imap_class, *server.server_address) @reap_threads def test_simple_with_statement(self): # simplest call with self.reaped_server(SimpleIMAPHandler) as server: with self.imap_class(*server.server_address): pass @reap_threads def test_with_statement(self): with self.reaped_server(SimpleIMAPHandler) as server: with self.imap_class(*server.server_address) as imap: imap.login('user', 'pass') self.assertEqual(server.logged, 'user') self.assertIsNone(server.logged) @reap_threads def test_with_statement_logout(self): # what happens if already logout in the block? with self.reaped_server(SimpleIMAPHandler) as server: with self.imap_class(*server.server_address) as imap: imap.login('user', 'pass') self.assertEqual(server.logged, 'user') imap.logout() self.assertIsNone(server.logged) self.assertIsNone(server.logged) @unittest.skipUnless(ssl, "SSL not available") class ThreadedNetworkedTestsSSL(ThreadedNetworkedTests): server_class = SecureTCPServer imap_class = IMAP4_SSL @reap_threads def test_ssl_verified(self): ssl_context = ssl.SSLContext(ssl.PROTOCOL_SSLv23) ssl_context.verify_mode = ssl.CERT_REQUIRED ssl_context.check_hostname = True ssl_context.load_verify_locations(CAFILE) with self.assertRaisesRegex( ssl.CertificateError, "hostname '127.0.0.1' doesn't match 'localhost'"): with self.reaped_server(SimpleIMAPHandler) as server: client = self.imap_class(*server.server_address, ssl_context=ssl_context) client.shutdown() with self.reaped_server(SimpleIMAPHandler) as server: client = self.imap_class("localhost", server.server_address[1], ssl_context=ssl_context) client.shutdown() @unittest.skipUnless( support.is_resource_enabled('network'), 'network resource disabled') class RemoteIMAPTest(unittest.TestCase): host = 'cyrus.andrew.cmu.edu' port = 143 username = 'anonymous' password = 'pass' imap_class = imaplib.IMAP4 def setUp(self): with transient_internet(self.host): self.server = self.imap_class(self.host, self.port) def tearDown(self): if self.server is not None: with transient_internet(self.host): self.server.logout() def test_logincapa(self): with transient_internet(self.host): for cap in self.server.capabilities: self.assertIsInstance(cap, str) self.assertIn('LOGINDISABLED', self.server.capabilities) self.assertIn('AUTH=ANONYMOUS', self.server.capabilities) rs = self.server.login(self.username, self.password) self.assertEqual(rs[0], 'OK') def test_logout(self): with transient_internet(self.host): rs = self.server.logout() self.server = None self.assertEqual(rs[0], 'BYE') @unittest.skipUnless(ssl, "SSL not available") @unittest.skipUnless( support.is_resource_enabled('network'), 'network resource disabled') class RemoteIMAP_STARTTLSTest(RemoteIMAPTest): def setUp(self): super().setUp() with transient_internet(self.host): rs = self.server.starttls() self.assertEqual(rs[0], 'OK') def test_logincapa(self): for cap in self.server.capabilities: self.assertIsInstance(cap, str) self.assertNotIn('LOGINDISABLED', self.server.capabilities) @unittest.skipUnless(ssl, "SSL not available") class RemoteIMAP_SSLTest(RemoteIMAPTest): port = 993 imap_class = IMAP4_SSL def setUp(self): pass def tearDown(self): pass def create_ssl_context(self): ssl_context = ssl.SSLContext(ssl.PROTOCOL_SSLv23) ssl_context.load_cert_chain(CERTFILE) return ssl_context def check_logincapa(self, server): try: for cap in server.capabilities: self.assertIsInstance(cap, str) self.assertNotIn('LOGINDISABLED', server.capabilities) self.assertIn('AUTH=PLAIN', server.capabilities) rs = server.login(self.username, self.password) self.assertEqual(rs[0], 'OK') finally: server.logout() def test_logincapa(self): with transient_internet(self.host): _server = self.imap_class(self.host, self.port) self.check_logincapa(_server) def test_logincapa_with_client_certfile(self): with transient_internet(self.host): _server = self.imap_class(self.host, self.port, certfile=CERTFILE) self.check_logincapa(_server) def test_logincapa_with_client_ssl_context(self): with transient_internet(self.host): _server = self.imap_class( self.host, self.port, ssl_context=self.create_ssl_context()) self.check_logincapa(_server) def test_logout(self): with transient_internet(self.host): _server = self.imap_class(self.host, self.port) rs = _server.logout() self.assertEqual(rs[0], 'BYE') def test_ssl_context_certfile_exclusive(self): with transient_internet(self.host): self.assertRaises( ValueError, self.imap_class, self.host, self.port, certfile=CERTFILE, ssl_context=self.create_ssl_context()) def test_ssl_context_keyfile_exclusive(self): with transient_internet(self.host): self.assertRaises( ValueError, self.imap_class, self.host, self.port, keyfile=CERTFILE, ssl_context=self.create_ssl_context()) if __name__ == "__main__": unittest.main()