PageRenderTime 55ms CodeModel.GetById 18ms RepoModel.GetById 1ms app.codeStats 0ms

/Lib/test/test_ssl.py

https://bitbucket.org/python_mirrors/sandbox-gps-cpython
Python | 1899 lines | 1741 code | 83 blank | 75 comment | 182 complexity | 518d1f974bbe18586ccc47efba56bbcb MD5 | raw file
Possible License(s): BSD-3-Clause, 0BSD
  1. # Test the support for SSL and sockets
  2. import sys
  3. import unittest
  4. from test import support
  5. import socket
  6. import select
  7. import time
  8. import gc
  9. import os
  10. import errno
  11. import pprint
  12. import tempfile
  13. import urllib.request
  14. import traceback
  15. import asyncore
  16. import weakref
  17. import platform
  18. import functools
  19. ssl = support.import_module("ssl")
  20. PROTOCOLS = [
  21. ssl.PROTOCOL_SSLv3,
  22. ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1
  23. ]
  24. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  25. PROTOCOLS.append(ssl.PROTOCOL_SSLv2)
  26. HOST = support.HOST
  27. data_file = lambda name: os.path.join(os.path.dirname(__file__), name)
  28. # The custom key and certificate files used in test_ssl are generated
  29. # using Lib/test/make_ssl_certs.py.
  30. # Other certificates are simply fetched from the Internet servers they
  31. # are meant to authenticate.
  32. CERTFILE = data_file("keycert.pem")
  33. BYTES_CERTFILE = os.fsencode(CERTFILE)
  34. ONLYCERT = data_file("ssl_cert.pem")
  35. ONLYKEY = data_file("ssl_key.pem")
  36. BYTES_ONLYCERT = os.fsencode(ONLYCERT)
  37. BYTES_ONLYKEY = os.fsencode(ONLYKEY)
  38. CERTFILE_PROTECTED = data_file("keycert.passwd.pem")
  39. ONLYKEY_PROTECTED = data_file("ssl_key.passwd.pem")
  40. KEY_PASSWORD = "somepass"
  41. CAPATH = data_file("capath")
  42. BYTES_CAPATH = os.fsencode(CAPATH)
  43. SVN_PYTHON_ORG_ROOT_CERT = data_file("https_svn_python_org_root.pem")
  44. EMPTYCERT = data_file("nullcert.pem")
  45. BADCERT = data_file("badcert.pem")
  46. WRONGCERT = data_file("XXXnonexisting.pem")
  47. BADKEY = data_file("badkey.pem")
  48. NOKIACERT = data_file("nokia.pem")
  49. DHFILE = data_file("dh512.pem")
  50. BYTES_DHFILE = os.fsencode(DHFILE)
  51. def handle_error(prefix):
  52. exc_format = ' '.join(traceback.format_exception(*sys.exc_info()))
  53. if support.verbose:
  54. sys.stdout.write(prefix + exc_format)
  55. def can_clear_options():
  56. # 0.9.8m or higher
  57. return ssl._OPENSSL_API_VERSION >= (0, 9, 8, 13, 15)
  58. def no_sslv2_implies_sslv3_hello():
  59. # 0.9.7h or higher
  60. return ssl.OPENSSL_VERSION_INFO >= (0, 9, 7, 8, 15)
  61. # Issue #9415: Ubuntu hijacks their OpenSSL and forcefully disables SSLv2
  62. def skip_if_broken_ubuntu_ssl(func):
  63. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  64. @functools.wraps(func)
  65. def f(*args, **kwargs):
  66. try:
  67. ssl.SSLContext(ssl.PROTOCOL_SSLv2)
  68. except ssl.SSLError:
  69. if (ssl.OPENSSL_VERSION_INFO == (0, 9, 8, 15, 15) and
  70. platform.linux_distribution() == ('debian', 'squeeze/sid', '')):
  71. raise unittest.SkipTest("Patched Ubuntu OpenSSL breaks behaviour")
  72. return func(*args, **kwargs)
  73. return f
  74. else:
  75. return func
  76. class BasicSocketTests(unittest.TestCase):
  77. def test_constants(self):
  78. #ssl.PROTOCOL_SSLv2
  79. ssl.PROTOCOL_SSLv23
  80. ssl.PROTOCOL_SSLv3
  81. ssl.PROTOCOL_TLSv1
  82. ssl.CERT_NONE
  83. ssl.CERT_OPTIONAL
  84. ssl.CERT_REQUIRED
  85. ssl.OP_CIPHER_SERVER_PREFERENCE
  86. ssl.OP_SINGLE_DH_USE
  87. ssl.OP_SINGLE_ECDH_USE
  88. if ssl.OPENSSL_VERSION_INFO >= (1, 0):
  89. ssl.OP_NO_COMPRESSION
  90. self.assertIn(ssl.HAS_SNI, {True, False})
  91. self.assertIn(ssl.HAS_ECDH, {True, False})
  92. def test_random(self):
  93. v = ssl.RAND_status()
  94. if support.verbose:
  95. sys.stdout.write("\n RAND_status is %d (%s)\n"
  96. % (v, (v and "sufficient randomness") or
  97. "insufficient randomness"))
  98. data, is_cryptographic = ssl.RAND_pseudo_bytes(16)
  99. self.assertEqual(len(data), 16)
  100. self.assertEqual(is_cryptographic, v == 1)
  101. if v:
  102. data = ssl.RAND_bytes(16)
  103. self.assertEqual(len(data), 16)
  104. else:
  105. self.assertRaises(ssl.SSLError, ssl.RAND_bytes, 16)
  106. try:
  107. ssl.RAND_egd(1)
  108. except TypeError:
  109. pass
  110. else:
  111. print("didn't raise TypeError")
  112. ssl.RAND_add("this is a random string", 75.0)
  113. def test_parse_cert(self):
  114. # note that this uses an 'unofficial' function in _ssl.c,
  115. # provided solely for this test, to exercise the certificate
  116. # parsing code
  117. p = ssl._ssl._test_decode_cert(CERTFILE)
  118. if support.verbose:
  119. sys.stdout.write("\n" + pprint.pformat(p) + "\n")
  120. self.assertEqual(p['issuer'],
  121. ((('countryName', 'XY'),),
  122. (('localityName', 'Castle Anthrax'),),
  123. (('organizationName', 'Python Software Foundation'),),
  124. (('commonName', 'localhost'),))
  125. )
  126. self.assertEqual(p['notAfter'], 'Oct 5 23:01:56 2020 GMT')
  127. self.assertEqual(p['notBefore'], 'Oct 8 23:01:56 2010 GMT')
  128. self.assertEqual(p['serialNumber'], 'D7C7381919AFC24E')
  129. self.assertEqual(p['subject'],
  130. ((('countryName', 'XY'),),
  131. (('localityName', 'Castle Anthrax'),),
  132. (('organizationName', 'Python Software Foundation'),),
  133. (('commonName', 'localhost'),))
  134. )
  135. self.assertEqual(p['subjectAltName'], (('DNS', 'localhost'),))
  136. # Issue #13034: the subjectAltName in some certificates
  137. # (notably projects.developer.nokia.com:443) wasn't parsed
  138. p = ssl._ssl._test_decode_cert(NOKIACERT)
  139. if support.verbose:
  140. sys.stdout.write("\n" + pprint.pformat(p) + "\n")
  141. self.assertEqual(p['subjectAltName'],
  142. (('DNS', 'projects.developer.nokia.com'),
  143. ('DNS', 'projects.forum.nokia.com'))
  144. )
  145. def test_DER_to_PEM(self):
  146. with open(SVN_PYTHON_ORG_ROOT_CERT, 'r') as f:
  147. pem = f.read()
  148. d1 = ssl.PEM_cert_to_DER_cert(pem)
  149. p2 = ssl.DER_cert_to_PEM_cert(d1)
  150. d2 = ssl.PEM_cert_to_DER_cert(p2)
  151. self.assertEqual(d1, d2)
  152. if not p2.startswith(ssl.PEM_HEADER + '\n'):
  153. self.fail("DER-to-PEM didn't include correct header:\n%r\n" % p2)
  154. if not p2.endswith('\n' + ssl.PEM_FOOTER + '\n'):
  155. self.fail("DER-to-PEM didn't include correct footer:\n%r\n" % p2)
  156. def test_openssl_version(self):
  157. n = ssl.OPENSSL_VERSION_NUMBER
  158. t = ssl.OPENSSL_VERSION_INFO
  159. s = ssl.OPENSSL_VERSION
  160. self.assertIsInstance(n, int)
  161. self.assertIsInstance(t, tuple)
  162. self.assertIsInstance(s, str)
  163. # Some sanity checks follow
  164. # >= 0.9
  165. self.assertGreaterEqual(n, 0x900000)
  166. # < 2.0
  167. self.assertLess(n, 0x20000000)
  168. major, minor, fix, patch, status = t
  169. self.assertGreaterEqual(major, 0)
  170. self.assertLess(major, 2)
  171. self.assertGreaterEqual(minor, 0)
  172. self.assertLess(minor, 256)
  173. self.assertGreaterEqual(fix, 0)
  174. self.assertLess(fix, 256)
  175. self.assertGreaterEqual(patch, 0)
  176. self.assertLessEqual(patch, 26)
  177. self.assertGreaterEqual(status, 0)
  178. self.assertLessEqual(status, 15)
  179. # Version string as returned by OpenSSL, the format might change
  180. self.assertTrue(s.startswith("OpenSSL {:d}.{:d}.{:d}".format(major, minor, fix)),
  181. (s, t))
  182. @support.cpython_only
  183. def test_refcycle(self):
  184. # Issue #7943: an SSL object doesn't create reference cycles with
  185. # itself.
  186. s = socket.socket(socket.AF_INET)
  187. ss = ssl.wrap_socket(s)
  188. wr = weakref.ref(ss)
  189. del ss
  190. self.assertEqual(wr(), None)
  191. def test_wrapped_unconnected(self):
  192. # Methods on an unconnected SSLSocket propagate the original
  193. # socket.error raise by the underlying socket object.
  194. s = socket.socket(socket.AF_INET)
  195. ss = ssl.wrap_socket(s)
  196. self.assertRaises(socket.error, ss.recv, 1)
  197. self.assertRaises(socket.error, ss.recv_into, bytearray(b'x'))
  198. self.assertRaises(socket.error, ss.recvfrom, 1)
  199. self.assertRaises(socket.error, ss.recvfrom_into, bytearray(b'x'), 1)
  200. self.assertRaises(socket.error, ss.send, b'x')
  201. self.assertRaises(socket.error, ss.sendto, b'x', ('0.0.0.0', 0))
  202. def test_timeout(self):
  203. # Issue #8524: when creating an SSL socket, the timeout of the
  204. # original socket should be retained.
  205. for timeout in (None, 0.0, 5.0):
  206. s = socket.socket(socket.AF_INET)
  207. s.settimeout(timeout)
  208. ss = ssl.wrap_socket(s)
  209. self.assertEqual(timeout, ss.gettimeout())
  210. def test_errors(self):
  211. sock = socket.socket()
  212. self.assertRaisesRegex(ValueError,
  213. "certfile must be specified",
  214. ssl.wrap_socket, sock, keyfile=CERTFILE)
  215. self.assertRaisesRegex(ValueError,
  216. "certfile must be specified for server-side operations",
  217. ssl.wrap_socket, sock, server_side=True)
  218. self.assertRaisesRegex(ValueError,
  219. "certfile must be specified for server-side operations",
  220. ssl.wrap_socket, sock, server_side=True, certfile="")
  221. s = ssl.wrap_socket(sock, server_side=True, certfile=CERTFILE)
  222. self.assertRaisesRegex(ValueError, "can't connect in server-side mode",
  223. s.connect, (HOST, 8080))
  224. with self.assertRaises(IOError) as cm:
  225. with socket.socket() as sock:
  226. ssl.wrap_socket(sock, certfile=WRONGCERT)
  227. self.assertEqual(cm.exception.errno, errno.ENOENT)
  228. with self.assertRaises(IOError) as cm:
  229. with socket.socket() as sock:
  230. ssl.wrap_socket(sock, certfile=CERTFILE, keyfile=WRONGCERT)
  231. self.assertEqual(cm.exception.errno, errno.ENOENT)
  232. with self.assertRaises(IOError) as cm:
  233. with socket.socket() as sock:
  234. ssl.wrap_socket(sock, certfile=WRONGCERT, keyfile=WRONGCERT)
  235. self.assertEqual(cm.exception.errno, errno.ENOENT)
  236. def test_match_hostname(self):
  237. def ok(cert, hostname):
  238. ssl.match_hostname(cert, hostname)
  239. def fail(cert, hostname):
  240. self.assertRaises(ssl.CertificateError,
  241. ssl.match_hostname, cert, hostname)
  242. cert = {'subject': ((('commonName', 'example.com'),),)}
  243. ok(cert, 'example.com')
  244. ok(cert, 'ExAmple.cOm')
  245. fail(cert, 'www.example.com')
  246. fail(cert, '.example.com')
  247. fail(cert, 'example.org')
  248. fail(cert, 'exampleXcom')
  249. cert = {'subject': ((('commonName', '*.a.com'),),)}
  250. ok(cert, 'foo.a.com')
  251. fail(cert, 'bar.foo.a.com')
  252. fail(cert, 'a.com')
  253. fail(cert, 'Xa.com')
  254. fail(cert, '.a.com')
  255. cert = {'subject': ((('commonName', 'a.*.com'),),)}
  256. ok(cert, 'a.foo.com')
  257. fail(cert, 'a..com')
  258. fail(cert, 'a.com')
  259. cert = {'subject': ((('commonName', 'f*.com'),),)}
  260. ok(cert, 'foo.com')
  261. ok(cert, 'f.com')
  262. fail(cert, 'bar.com')
  263. fail(cert, 'foo.a.com')
  264. fail(cert, 'bar.foo.com')
  265. # Slightly fake real-world example
  266. cert = {'notAfter': 'Jun 26 21:41:46 2011 GMT',
  267. 'subject': ((('commonName', 'linuxfrz.org'),),),
  268. 'subjectAltName': (('DNS', 'linuxfr.org'),
  269. ('DNS', 'linuxfr.com'),
  270. ('othername', '<unsupported>'))}
  271. ok(cert, 'linuxfr.org')
  272. ok(cert, 'linuxfr.com')
  273. # Not a "DNS" entry
  274. fail(cert, '<unsupported>')
  275. # When there is a subjectAltName, commonName isn't used
  276. fail(cert, 'linuxfrz.org')
  277. # A pristine real-world example
  278. cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT',
  279. 'subject': ((('countryName', 'US'),),
  280. (('stateOrProvinceName', 'California'),),
  281. (('localityName', 'Mountain View'),),
  282. (('organizationName', 'Google Inc'),),
  283. (('commonName', 'mail.google.com'),))}
  284. ok(cert, 'mail.google.com')
  285. fail(cert, 'gmail.com')
  286. # Only commonName is considered
  287. fail(cert, 'California')
  288. # Neither commonName nor subjectAltName
  289. cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT',
  290. 'subject': ((('countryName', 'US'),),
  291. (('stateOrProvinceName', 'California'),),
  292. (('localityName', 'Mountain View'),),
  293. (('organizationName', 'Google Inc'),))}
  294. fail(cert, 'mail.google.com')
  295. # No DNS entry in subjectAltName but a commonName
  296. cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT',
  297. 'subject': ((('countryName', 'US'),),
  298. (('stateOrProvinceName', 'California'),),
  299. (('localityName', 'Mountain View'),),
  300. (('commonName', 'mail.google.com'),)),
  301. 'subjectAltName': (('othername', 'blabla'), )}
  302. ok(cert, 'mail.google.com')
  303. # No DNS entry subjectAltName and no commonName
  304. cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT',
  305. 'subject': ((('countryName', 'US'),),
  306. (('stateOrProvinceName', 'California'),),
  307. (('localityName', 'Mountain View'),),
  308. (('organizationName', 'Google Inc'),)),
  309. 'subjectAltName': (('othername', 'blabla'),)}
  310. fail(cert, 'google.com')
  311. # Empty cert / no cert
  312. self.assertRaises(ValueError, ssl.match_hostname, None, 'example.com')
  313. self.assertRaises(ValueError, ssl.match_hostname, {}, 'example.com')
  314. def test_server_side(self):
  315. # server_hostname doesn't work for server sockets
  316. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  317. with socket.socket() as sock:
  318. self.assertRaises(ValueError, ctx.wrap_socket, sock, True,
  319. server_hostname="some.hostname")
  320. def test_unknown_channel_binding(self):
  321. # should raise ValueError for unknown type
  322. s = socket.socket(socket.AF_INET)
  323. ss = ssl.wrap_socket(s)
  324. with self.assertRaises(ValueError):
  325. ss.get_channel_binding("unknown-type")
  326. @unittest.skipUnless("tls-unique" in ssl.CHANNEL_BINDING_TYPES,
  327. "'tls-unique' channel binding not available")
  328. def test_tls_unique_channel_binding(self):
  329. # unconnected should return None for known type
  330. s = socket.socket(socket.AF_INET)
  331. ss = ssl.wrap_socket(s)
  332. self.assertIsNone(ss.get_channel_binding("tls-unique"))
  333. # the same for server-side
  334. s = socket.socket(socket.AF_INET)
  335. ss = ssl.wrap_socket(s, server_side=True, certfile=CERTFILE)
  336. self.assertIsNone(ss.get_channel_binding("tls-unique"))
  337. class ContextTests(unittest.TestCase):
  338. @skip_if_broken_ubuntu_ssl
  339. def test_constructor(self):
  340. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  341. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv2)
  342. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  343. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv3)
  344. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  345. self.assertRaises(TypeError, ssl.SSLContext)
  346. self.assertRaises(ValueError, ssl.SSLContext, -1)
  347. self.assertRaises(ValueError, ssl.SSLContext, 42)
  348. @skip_if_broken_ubuntu_ssl
  349. def test_protocol(self):
  350. for proto in PROTOCOLS:
  351. ctx = ssl.SSLContext(proto)
  352. self.assertEqual(ctx.protocol, proto)
  353. def test_ciphers(self):
  354. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  355. ctx.set_ciphers("ALL")
  356. ctx.set_ciphers("DEFAULT")
  357. with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"):
  358. ctx.set_ciphers("^$:,;?*'dorothyx")
  359. @skip_if_broken_ubuntu_ssl
  360. def test_options(self):
  361. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  362. # OP_ALL is the default value
  363. self.assertEqual(ssl.OP_ALL, ctx.options)
  364. ctx.options |= ssl.OP_NO_SSLv2
  365. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2,
  366. ctx.options)
  367. ctx.options |= ssl.OP_NO_SSLv3
  368. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3,
  369. ctx.options)
  370. if can_clear_options():
  371. ctx.options = (ctx.options & ~ssl.OP_NO_SSLv2) | ssl.OP_NO_TLSv1
  372. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_TLSv1 | ssl.OP_NO_SSLv3,
  373. ctx.options)
  374. ctx.options = 0
  375. self.assertEqual(0, ctx.options)
  376. else:
  377. with self.assertRaises(ValueError):
  378. ctx.options = 0
  379. def test_verify(self):
  380. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  381. # Default value
  382. self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
  383. ctx.verify_mode = ssl.CERT_OPTIONAL
  384. self.assertEqual(ctx.verify_mode, ssl.CERT_OPTIONAL)
  385. ctx.verify_mode = ssl.CERT_REQUIRED
  386. self.assertEqual(ctx.verify_mode, ssl.CERT_REQUIRED)
  387. ctx.verify_mode = ssl.CERT_NONE
  388. self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
  389. with self.assertRaises(TypeError):
  390. ctx.verify_mode = None
  391. with self.assertRaises(ValueError):
  392. ctx.verify_mode = 42
  393. def test_load_cert_chain(self):
  394. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  395. # Combined key and cert in a single file
  396. ctx.load_cert_chain(CERTFILE)
  397. ctx.load_cert_chain(CERTFILE, keyfile=CERTFILE)
  398. self.assertRaises(TypeError, ctx.load_cert_chain, keyfile=CERTFILE)
  399. with self.assertRaises(IOError) as cm:
  400. ctx.load_cert_chain(WRONGCERT)
  401. self.assertEqual(cm.exception.errno, errno.ENOENT)
  402. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  403. ctx.load_cert_chain(BADCERT)
  404. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  405. ctx.load_cert_chain(EMPTYCERT)
  406. # Separate key and cert
  407. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  408. ctx.load_cert_chain(ONLYCERT, ONLYKEY)
  409. ctx.load_cert_chain(certfile=ONLYCERT, keyfile=ONLYKEY)
  410. ctx.load_cert_chain(certfile=BYTES_ONLYCERT, keyfile=BYTES_ONLYKEY)
  411. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  412. ctx.load_cert_chain(ONLYCERT)
  413. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  414. ctx.load_cert_chain(ONLYKEY)
  415. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  416. ctx.load_cert_chain(certfile=ONLYKEY, keyfile=ONLYCERT)
  417. # Mismatching key and cert
  418. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  419. with self.assertRaisesRegex(ssl.SSLError, "key values mismatch"):
  420. ctx.load_cert_chain(SVN_PYTHON_ORG_ROOT_CERT, ONLYKEY)
  421. # Password protected key and cert
  422. ctx.load_cert_chain(CERTFILE_PROTECTED, password=KEY_PASSWORD)
  423. ctx.load_cert_chain(CERTFILE_PROTECTED, password=KEY_PASSWORD.encode())
  424. ctx.load_cert_chain(CERTFILE_PROTECTED,
  425. password=bytearray(KEY_PASSWORD.encode()))
  426. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED, KEY_PASSWORD)
  427. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED, KEY_PASSWORD.encode())
  428. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED,
  429. bytearray(KEY_PASSWORD.encode()))
  430. with self.assertRaisesRegex(TypeError, "should be a string"):
  431. ctx.load_cert_chain(CERTFILE_PROTECTED, password=True)
  432. with self.assertRaises(ssl.SSLError):
  433. ctx.load_cert_chain(CERTFILE_PROTECTED, password="badpass")
  434. with self.assertRaisesRegex(ValueError, "cannot be longer"):
  435. # openssl has a fixed limit on the password buffer.
  436. # PEM_BUFSIZE is generally set to 1kb.
  437. # Return a string larger than this.
  438. ctx.load_cert_chain(CERTFILE_PROTECTED, password=b'a' * 102400)
  439. # Password callback
  440. def getpass_unicode():
  441. return KEY_PASSWORD
  442. def getpass_bytes():
  443. return KEY_PASSWORD.encode()
  444. def getpass_bytearray():
  445. return bytearray(KEY_PASSWORD.encode())
  446. def getpass_badpass():
  447. return "badpass"
  448. def getpass_huge():
  449. return b'a' * (1024 * 1024)
  450. def getpass_bad_type():
  451. return 9
  452. def getpass_exception():
  453. raise Exception('getpass error')
  454. class GetPassCallable:
  455. def __call__(self):
  456. return KEY_PASSWORD
  457. def getpass(self):
  458. return KEY_PASSWORD
  459. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_unicode)
  460. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bytes)
  461. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bytearray)
  462. ctx.load_cert_chain(CERTFILE_PROTECTED, password=GetPassCallable())
  463. ctx.load_cert_chain(CERTFILE_PROTECTED,
  464. password=GetPassCallable().getpass)
  465. with self.assertRaises(ssl.SSLError):
  466. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_badpass)
  467. with self.assertRaisesRegex(ValueError, "cannot be longer"):
  468. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_huge)
  469. with self.assertRaisesRegex(TypeError, "must return a string"):
  470. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bad_type)
  471. with self.assertRaisesRegex(Exception, "getpass error"):
  472. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_exception)
  473. # Make sure the password function isn't called if it isn't needed
  474. ctx.load_cert_chain(CERTFILE, password=getpass_exception)
  475. def test_load_verify_locations(self):
  476. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  477. ctx.load_verify_locations(CERTFILE)
  478. ctx.load_verify_locations(cafile=CERTFILE, capath=None)
  479. ctx.load_verify_locations(BYTES_CERTFILE)
  480. ctx.load_verify_locations(cafile=BYTES_CERTFILE, capath=None)
  481. self.assertRaises(TypeError, ctx.load_verify_locations)
  482. self.assertRaises(TypeError, ctx.load_verify_locations, None, None)
  483. with self.assertRaises(IOError) as cm:
  484. ctx.load_verify_locations(WRONGCERT)
  485. self.assertEqual(cm.exception.errno, errno.ENOENT)
  486. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  487. ctx.load_verify_locations(BADCERT)
  488. ctx.load_verify_locations(CERTFILE, CAPATH)
  489. ctx.load_verify_locations(CERTFILE, capath=BYTES_CAPATH)
  490. # Issue #10989: crash if the second argument type is invalid
  491. self.assertRaises(TypeError, ctx.load_verify_locations, None, True)
  492. def test_load_dh_params(self):
  493. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  494. ctx.load_dh_params(DHFILE)
  495. if os.name != 'nt':
  496. ctx.load_dh_params(BYTES_DHFILE)
  497. self.assertRaises(TypeError, ctx.load_dh_params)
  498. self.assertRaises(TypeError, ctx.load_dh_params, None)
  499. with self.assertRaises(FileNotFoundError) as cm:
  500. ctx.load_dh_params(WRONGCERT)
  501. self.assertEqual(cm.exception.errno, errno.ENOENT)
  502. with self.assertRaisesRegex(ssl.SSLError, "PEM routines"):
  503. ctx.load_dh_params(CERTFILE)
  504. @skip_if_broken_ubuntu_ssl
  505. def test_session_stats(self):
  506. for proto in PROTOCOLS:
  507. ctx = ssl.SSLContext(proto)
  508. self.assertEqual(ctx.session_stats(), {
  509. 'number': 0,
  510. 'connect': 0,
  511. 'connect_good': 0,
  512. 'connect_renegotiate': 0,
  513. 'accept': 0,
  514. 'accept_good': 0,
  515. 'accept_renegotiate': 0,
  516. 'hits': 0,
  517. 'misses': 0,
  518. 'timeouts': 0,
  519. 'cache_full': 0,
  520. })
  521. def test_set_default_verify_paths(self):
  522. # There's not much we can do to test that it acts as expected,
  523. # so just check it doesn't crash or raise an exception.
  524. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  525. ctx.set_default_verify_paths()
  526. @unittest.skipUnless(ssl.HAS_ECDH, "ECDH disabled on this OpenSSL build")
  527. def test_set_ecdh_curve(self):
  528. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  529. ctx.set_ecdh_curve("prime256v1")
  530. ctx.set_ecdh_curve(b"prime256v1")
  531. self.assertRaises(TypeError, ctx.set_ecdh_curve)
  532. self.assertRaises(TypeError, ctx.set_ecdh_curve, None)
  533. self.assertRaises(ValueError, ctx.set_ecdh_curve, "foo")
  534. self.assertRaises(ValueError, ctx.set_ecdh_curve, b"foo")
  535. class NetworkedTests(unittest.TestCase):
  536. def test_connect(self):
  537. with support.transient_internet("svn.python.org"):
  538. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  539. cert_reqs=ssl.CERT_NONE)
  540. try:
  541. s.connect(("svn.python.org", 443))
  542. self.assertEqual({}, s.getpeercert())
  543. finally:
  544. s.close()
  545. # this should fail because we have no verification certs
  546. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  547. cert_reqs=ssl.CERT_REQUIRED)
  548. self.assertRaisesRegex(ssl.SSLError, "certificate verify failed",
  549. s.connect, ("svn.python.org", 443))
  550. s.close()
  551. # this should succeed because we specify the root cert
  552. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  553. cert_reqs=ssl.CERT_REQUIRED,
  554. ca_certs=SVN_PYTHON_ORG_ROOT_CERT)
  555. try:
  556. s.connect(("svn.python.org", 443))
  557. self.assertTrue(s.getpeercert())
  558. finally:
  559. s.close()
  560. def test_connect_ex(self):
  561. # Issue #11326: check connect_ex() implementation
  562. with support.transient_internet("svn.python.org"):
  563. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  564. cert_reqs=ssl.CERT_REQUIRED,
  565. ca_certs=SVN_PYTHON_ORG_ROOT_CERT)
  566. try:
  567. self.assertEqual(0, s.connect_ex(("svn.python.org", 443)))
  568. self.assertTrue(s.getpeercert())
  569. finally:
  570. s.close()
  571. def test_non_blocking_connect_ex(self):
  572. # Issue #11326: non-blocking connect_ex() should allow handshake
  573. # to proceed after the socket gets ready.
  574. with support.transient_internet("svn.python.org"):
  575. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  576. cert_reqs=ssl.CERT_REQUIRED,
  577. ca_certs=SVN_PYTHON_ORG_ROOT_CERT,
  578. do_handshake_on_connect=False)
  579. try:
  580. s.setblocking(False)
  581. rc = s.connect_ex(('svn.python.org', 443))
  582. # EWOULDBLOCK under Windows, EINPROGRESS elsewhere
  583. self.assertIn(rc, (0, errno.EINPROGRESS, errno.EWOULDBLOCK))
  584. # Wait for connect to finish
  585. select.select([], [s], [], 5.0)
  586. # Non-blocking handshake
  587. while True:
  588. try:
  589. s.do_handshake()
  590. break
  591. except ssl.SSLWantReadError:
  592. select.select([s], [], [], 5.0)
  593. except ssl.SSLWantWriteError:
  594. select.select([], [s], [], 5.0)
  595. # SSL established
  596. self.assertTrue(s.getpeercert())
  597. finally:
  598. s.close()
  599. def test_timeout_connect_ex(self):
  600. # Issue #12065: on a timeout, connect_ex() should return the original
  601. # errno (mimicking the behaviour of non-SSL sockets).
  602. with support.transient_internet("svn.python.org"):
  603. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  604. cert_reqs=ssl.CERT_REQUIRED,
  605. ca_certs=SVN_PYTHON_ORG_ROOT_CERT,
  606. do_handshake_on_connect=False)
  607. try:
  608. s.settimeout(0.0000001)
  609. rc = s.connect_ex(('svn.python.org', 443))
  610. if rc == 0:
  611. self.skipTest("svn.python.org responded too quickly")
  612. self.assertIn(rc, (errno.EAGAIN, errno.EWOULDBLOCK))
  613. finally:
  614. s.close()
  615. def test_connect_with_context(self):
  616. with support.transient_internet("svn.python.org"):
  617. # Same as test_connect, but with a separately created context
  618. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  619. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  620. s.connect(("svn.python.org", 443))
  621. try:
  622. self.assertEqual({}, s.getpeercert())
  623. finally:
  624. s.close()
  625. # Same with a server hostname
  626. s = ctx.wrap_socket(socket.socket(socket.AF_INET),
  627. server_hostname="svn.python.org")
  628. if ssl.HAS_SNI:
  629. s.connect(("svn.python.org", 443))
  630. s.close()
  631. else:
  632. self.assertRaises(ValueError, s.connect, ("svn.python.org", 443))
  633. # This should fail because we have no verification certs
  634. ctx.verify_mode = ssl.CERT_REQUIRED
  635. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  636. self.assertRaisesRegex(ssl.SSLError, "certificate verify failed",
  637. s.connect, ("svn.python.org", 443))
  638. s.close()
  639. # This should succeed because we specify the root cert
  640. ctx.load_verify_locations(SVN_PYTHON_ORG_ROOT_CERT)
  641. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  642. s.connect(("svn.python.org", 443))
  643. try:
  644. cert = s.getpeercert()
  645. self.assertTrue(cert)
  646. finally:
  647. s.close()
  648. def test_connect_capath(self):
  649. # Verify server certificates using the `capath` argument
  650. # NOTE: the subject hashing algorithm has been changed between
  651. # OpenSSL 0.9.8n and 1.0.0, as a result the capath directory must
  652. # contain both versions of each certificate (same content, different
  653. # filename) for this test to be portable across OpenSSL releases.
  654. with support.transient_internet("svn.python.org"):
  655. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  656. ctx.verify_mode = ssl.CERT_REQUIRED
  657. ctx.load_verify_locations(capath=CAPATH)
  658. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  659. s.connect(("svn.python.org", 443))
  660. try:
  661. cert = s.getpeercert()
  662. self.assertTrue(cert)
  663. finally:
  664. s.close()
  665. # Same with a bytes `capath` argument
  666. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  667. ctx.verify_mode = ssl.CERT_REQUIRED
  668. ctx.load_verify_locations(capath=BYTES_CAPATH)
  669. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  670. s.connect(("svn.python.org", 443))
  671. try:
  672. cert = s.getpeercert()
  673. self.assertTrue(cert)
  674. finally:
  675. s.close()
  676. @unittest.skipIf(os.name == "nt", "Can't use a socket as a file under Windows")
  677. def test_makefile_close(self):
  678. # Issue #5238: creating a file-like object with makefile() shouldn't
  679. # delay closing the underlying "real socket" (here tested with its
  680. # file descriptor, hence skipping the test under Windows).
  681. with support.transient_internet("svn.python.org"):
  682. ss = ssl.wrap_socket(socket.socket(socket.AF_INET))
  683. ss.connect(("svn.python.org", 443))
  684. fd = ss.fileno()
  685. f = ss.makefile()
  686. f.close()
  687. # The fd is still open
  688. os.read(fd, 0)
  689. # Closing the SSL socket should close the fd too
  690. ss.close()
  691. gc.collect()
  692. with self.assertRaises(OSError) as e:
  693. os.read(fd, 0)
  694. self.assertEqual(e.exception.errno, errno.EBADF)
  695. def test_non_blocking_handshake(self):
  696. with support.transient_internet("svn.python.org"):
  697. s = socket.socket(socket.AF_INET)
  698. s.connect(("svn.python.org", 443))
  699. s.setblocking(False)
  700. s = ssl.wrap_socket(s,
  701. cert_reqs=ssl.CERT_NONE,
  702. do_handshake_on_connect=False)
  703. count = 0
  704. while True:
  705. try:
  706. count += 1
  707. s.do_handshake()
  708. break
  709. except ssl.SSLWantReadError:
  710. select.select([s], [], [])
  711. except ssl.SSLWantWriteError:
  712. select.select([], [s], [])
  713. s.close()
  714. if support.verbose:
  715. sys.stdout.write("\nNeeded %d calls to do_handshake() to establish session.\n" % count)
  716. def test_get_server_certificate(self):
  717. def _test_get_server_certificate(host, port, cert=None):
  718. with support.transient_internet(host):
  719. pem = ssl.get_server_certificate((host, port))
  720. if not pem:
  721. self.fail("No server certificate on %s:%s!" % (host, port))
  722. try:
  723. pem = ssl.get_server_certificate((host, port), ca_certs=CERTFILE)
  724. except ssl.SSLError as x:
  725. #should fail
  726. if support.verbose:
  727. sys.stdout.write("%s\n" % x)
  728. else:
  729. self.fail("Got server certificate %s for %s:%s!" % (pem, host, port))
  730. pem = ssl.get_server_certificate((host, port), ca_certs=cert)
  731. if not pem:
  732. self.fail("No server certificate on %s:%s!" % (host, port))
  733. if support.verbose:
  734. sys.stdout.write("\nVerified certificate for %s:%s is\n%s\n" % (host, port ,pem))
  735. _test_get_server_certificate('svn.python.org', 443, SVN_PYTHON_ORG_ROOT_CERT)
  736. if support.IPV6_ENABLED:
  737. _test_get_server_certificate('ipv6.google.com', 443)
  738. def test_ciphers(self):
  739. remote = ("svn.python.org", 443)
  740. with support.transient_internet(remote[0]):
  741. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  742. cert_reqs=ssl.CERT_NONE, ciphers="ALL")
  743. s.connect(remote)
  744. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  745. cert_reqs=ssl.CERT_NONE, ciphers="DEFAULT")
  746. s.connect(remote)
  747. # Error checking can happen at instantiation or when connecting
  748. with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"):
  749. with socket.socket(socket.AF_INET) as sock:
  750. s = ssl.wrap_socket(sock,
  751. cert_reqs=ssl.CERT_NONE, ciphers="^$:,;?*'dorothyx")
  752. s.connect(remote)
  753. def test_algorithms(self):
  754. # Issue #8484: all algorithms should be available when verifying a
  755. # certificate.
  756. # SHA256 was added in OpenSSL 0.9.8
  757. if ssl.OPENSSL_VERSION_INFO < (0, 9, 8, 0, 15):
  758. self.skipTest("SHA256 not available on %r" % ssl.OPENSSL_VERSION)
  759. # https://sha2.hboeck.de/ was used until 2011-01-08 (no route to host)
  760. remote = ("sha256.tbs-internet.com", 443)
  761. sha256_cert = os.path.join(os.path.dirname(__file__), "sha256.pem")
  762. with support.transient_internet("sha256.tbs-internet.com"):
  763. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  764. cert_reqs=ssl.CERT_REQUIRED,
  765. ca_certs=sha256_cert,)
  766. try:
  767. s.connect(remote)
  768. if support.verbose:
  769. sys.stdout.write("\nCipher with %r is %r\n" %
  770. (remote, s.cipher()))
  771. sys.stdout.write("Certificate is:\n%s\n" %
  772. pprint.pformat(s.getpeercert()))
  773. finally:
  774. s.close()
  775. try:
  776. import threading
  777. except ImportError:
  778. _have_threads = False
  779. else:
  780. _have_threads = True
  781. from test.ssl_servers import make_https_server
  782. class ThreadedEchoServer(threading.Thread):
  783. class ConnectionHandler(threading.Thread):
  784. """A mildly complicated class, because we want it to work both
  785. with and without the SSL wrapper around the socket connection, so
  786. that we can test the STARTTLS functionality."""
  787. def __init__(self, server, connsock, addr):
  788. self.server = server
  789. self.running = False
  790. self.sock = connsock
  791. self.addr = addr
  792. self.sock.setblocking(1)
  793. self.sslconn = None
  794. threading.Thread.__init__(self)
  795. self.daemon = True
  796. def wrap_conn(self):
  797. try:
  798. self.sslconn = self.server.context.wrap_socket(
  799. self.sock, server_side=True)
  800. except ssl.SSLError as e:
  801. # XXX Various errors can have happened here, for example
  802. # a mismatching protocol version, an invalid certificate,
  803. # or a low-level bug. This should be made more discriminating.
  804. self.server.conn_errors.append(e)
  805. if self.server.chatty:
  806. handle_error("\n server: bad connection attempt from " + repr(self.addr) + ":\n")
  807. self.running = False
  808. self.server.stop()
  809. self.close()
  810. return False
  811. else:
  812. if self.server.context.verify_mode == ssl.CERT_REQUIRED:
  813. cert = self.sslconn.getpeercert()
  814. if support.verbose and self.server.chatty:
  815. sys.stdout.write(" client cert is " + pprint.pformat(cert) + "\n")
  816. cert_binary = self.sslconn.getpeercert(True)
  817. if support.verbose and self.server.chatty:
  818. sys.stdout.write(" cert binary is " + str(len(cert_binary)) + " bytes\n")
  819. cipher = self.sslconn.cipher()
  820. if support.verbose and self.server.chatty:
  821. sys.stdout.write(" server: connection cipher is now " + str(cipher) + "\n")
  822. return True
  823. def read(self):
  824. if self.sslconn:
  825. return self.sslconn.read()
  826. else:
  827. return self.sock.recv(1024)
  828. def write(self, bytes):
  829. if self.sslconn:
  830. return self.sslconn.write(bytes)
  831. else:
  832. return self.sock.send(bytes)
  833. def close(self):
  834. if self.sslconn:
  835. self.sslconn.close()
  836. else:
  837. self.sock.close()
  838. def run(self):
  839. self.running = True
  840. if not self.server.starttls_server:
  841. if not self.wrap_conn():
  842. return
  843. while self.running:
  844. try:
  845. msg = self.read()
  846. stripped = msg.strip()
  847. if not stripped:
  848. # eof, so quit this handler
  849. self.running = False
  850. self.close()
  851. elif stripped == b'over':
  852. if support.verbose and self.server.connectionchatty:
  853. sys.stdout.write(" server: client closed connection\n")
  854. self.close()
  855. return
  856. elif (self.server.starttls_server and
  857. stripped == b'STARTTLS'):
  858. if support.verbose and self.server.connectionchatty:
  859. sys.stdout.write(" server: read STARTTLS from client, sending OK...\n")
  860. self.write(b"OK\n")
  861. if not self.wrap_conn():
  862. return
  863. elif (self.server.starttls_server and self.sslconn
  864. and stripped == b'ENDTLS'):
  865. if support.verbose and self.server.connectionchatty:
  866. sys.stdout.write(" server: read ENDTLS from client, sending OK...\n")
  867. self.write(b"OK\n")
  868. self.sock = self.sslconn.unwrap()
  869. self.sslconn = None
  870. if support.verbose and self.server.connectionchatty:
  871. sys.stdout.write(" server: connection is now unencrypted...\n")
  872. elif stripped == b'CB tls-unique':
  873. if support.verbose and self.server.connectionchatty:
  874. sys.stdout.write(" server: read CB tls-unique from client, sending our CB data...\n")
  875. data = self.sslconn.get_channel_binding("tls-unique")
  876. self.write(repr(data).encode("us-ascii") + b"\n")
  877. else:
  878. if (support.verbose and
  879. self.server.connectionchatty):
  880. ctype = (self.sslconn and "encrypted") or "unencrypted"
  881. sys.stdout.write(" server: read %r (%s), sending back %r (%s)...\n"
  882. % (msg, ctype, msg.lower(), ctype))
  883. self.write(msg.lower())
  884. except socket.error:
  885. if self.server.chatty:
  886. handle_error("Test server failure:\n")
  887. self.close()
  888. self.running = False
  889. # normally, we'd just stop here, but for the test
  890. # harness, we want to stop the server
  891. self.server.stop()
  892. def __init__(self, certificate=None, ssl_version=None,
  893. certreqs=None, cacerts=None,
  894. chatty=True, connectionchatty=False, starttls_server=False,
  895. ciphers=None, context=None):
  896. if context:
  897. self.context = context
  898. else:
  899. self.context = ssl.SSLContext(ssl_version
  900. if ssl_version is not None
  901. else ssl.PROTOCOL_TLSv1)
  902. self.context.verify_mode = (certreqs if certreqs is not None
  903. else ssl.CERT_NONE)
  904. if cacerts:
  905. self.context.load_verify_locations(cacerts)
  906. if certificate:
  907. self.context.load_cert_chain(certificate)
  908. if ciphers:
  909. self.context.set_ciphers(ciphers)
  910. self.chatty = chatty
  911. self.connectionchatty = connectionchatty
  912. self.starttls_server = starttls_server
  913. self.sock = socket.socket()
  914. self.port = support.bind_port(self.sock)
  915. self.flag = None
  916. self.active = False
  917. self.conn_errors = []
  918. threading.Thread.__init__(self)
  919. self.daemon = True
  920. def __enter__(self):
  921. self.start(threading.Event())
  922. self.flag.wait()
  923. return self
  924. def __exit__(self, *args):
  925. self.stop()
  926. self.join()
  927. def start(self, flag=None):
  928. self.flag = flag
  929. threading.Thread.start(self)
  930. def run(self):
  931. self.sock.settimeout(0.05)
  932. self.sock.listen(5)
  933. self.active = True
  934. if self.flag:
  935. # signal an event
  936. self.flag.set()
  937. while self.active:
  938. try:
  939. newconn, connaddr = self.sock.accept()
  940. if support.verbose and self.chatty:
  941. sys.stdout.write(' server: new connection from '
  942. + repr(connaddr) + '\n')
  943. handler = self.ConnectionHandler(self, newconn, connaddr)
  944. handler.start()
  945. handler.join()
  946. except socket.timeout:
  947. pass
  948. except KeyboardInterrupt:
  949. self.stop()
  950. self.sock.close()
  951. def stop(self):
  952. self.active = False
  953. class AsyncoreEchoServer(threading.Thread):
  954. # this one's based on asyncore.dispatcher
  955. class EchoServer (asyncore.dispatcher):
  956. class ConnectionHandler (asyncore.dispatcher_with_send):
  957. def __init__(self, conn, certfile):
  958. self.socket = ssl.wrap_socket(conn, server_side=True,
  959. certfile=certfile,
  960. do_handshake_on_connect=False)
  961. asyncore.dispatcher_with_send.__init__(self, self.socket)
  962. self._ssl_accepting = True
  963. self._do_ssl_handshake()
  964. def readable(self):
  965. if isinstance(self.socket, ssl.SSLSocket):
  966. while self.socket.pending() > 0:
  967. self.handle_read_event()
  968. return True
  969. def _do_ssl_handshake(self):
  970. try:
  971. self.socket.do_handshake()
  972. except (ssl.SSLWantReadError, ssl.SSLWantWriteError):
  973. return
  974. except ssl.SSLEOFError:
  975. return self.handle_close()
  976. except ssl.SSLError:
  977. raise
  978. except socket.error as err:
  979. if err.args[0] == errno.ECONNABORTED:
  980. return self.handle_close()
  981. else:
  982. self._ssl_accepting = False
  983. def handle_read(self):
  984. if self._ssl_accepting:
  985. self._do_ssl_handshake()
  986. else:
  987. data = self.recv(1024)
  988. if support.verbose:
  989. sys.stdout.write(" server: read %s from client\n" % repr(data))
  990. if not data:
  991. self.close()
  992. else:
  993. self.send(data.lower())
  994. def handle_close(self):
  995. self.close()
  996. if support.verbose:
  997. sys.stdout.write(" server: closed connection %s\n" % self.socket)
  998. def handle_error(self):
  999. raise
  1000. def __init__(self, certfile):
  1001. self.certfile = certfile
  1002. sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  1003. self.port = support.bind_port(sock, '')
  1004. asyncore.dispatcher.__init__(self, sock)
  1005. self.listen(5)
  1006. def handle_accepted(self, sock_obj, addr):
  1007. if support.verbose:
  1008. sys.stdout.write(" server: new connection from %s:%s\n" %addr)
  1009. self.ConnectionHandler(sock_obj, self.certfile)
  1010. def handle_error(self):
  1011. raise
  1012. def __init__(self, certfile):
  1013. self.flag = None
  1014. self.active = False
  1015. self.server = self.EchoServer(certfile)
  1016. self.port = self.server.port
  1017. threading.Thread.__init__(self)
  1018. self.daemon = True
  1019. def __str__(self):
  1020. return "<%s %s>" % (self.__class__.__name__, self.server)
  1021. def __enter__(self):
  1022. self.start(threading.Event())
  1023. self.flag.wait()
  1024. return self
  1025. def __exit__(self, *args):
  1026. if support.verbose:
  1027. sys.stdout.write(" cleanup: stopping server.\n")
  1028. self.stop()
  1029. if support.verbose:
  1030. sys.stdout.write(" cleanup: joining server thread.\n")
  1031. self.join()
  1032. if support.verbose:
  1033. sys.stdout.write(" cleanup: successfully joined.\n")
  1034. def start (self, flag=None):
  1035. self.flag = flag
  1036. threading.Thread.start(self)
  1037. def run(self):
  1038. self.active = True
  1039. if self.flag:
  1040. self.flag.set()
  1041. while self.active:
  1042. try:
  1043. asyncore.loop(1)
  1044. except:
  1045. pass
  1046. def stop(self):
  1047. self.active = False
  1048. self.server.close()
  1049. def bad_cert_test(certfile):
  1050. """
  1051. Launch a server with CERT_REQUIRED, and check that trying to
  1052. connect to it with the given client certificate fails.
  1053. """
  1054. server = ThreadedEchoServer(CERTFILE,
  1055. certreqs=ssl.CERT_REQUIRED,
  1056. cacerts=CERTFILE, chatty=False,
  1057. connectionchatty=False)
  1058. with server:
  1059. try:
  1060. with socket.socket() as sock:
  1061. s = ssl.wrap_socket(sock,
  1062. certfile=certfile,
  1063. ssl_version=ssl.PROTOCOL_TLSv1)
  1064. s.connect((HOST, server.port))
  1065. except ssl.SSLError as x:
  1066. if support.verbose:
  1067. sys.stdout.write("\nSSLError is %s\n" % x.args[1])
  1068. except socket.error as x:
  1069. if support.verbose:
  1070. sys.stdout.write("\nsocket.error is %s\n" % x.args[1])
  1071. except IOError as x:
  1072. if x.errno != errno.ENOENT:
  1073. raise
  1074. if support.verbose:
  1075. sys.stdout.write("\IOError is %s\n" % str(x))
  1076. else:
  1077. raise AssertionError("Use of invalid cert should have failed!")
  1078. def server_params_test(client_context, server_context, indata=b"FOO\n",
  1079. chatty=True, connectionchatty=False):
  1080. """
  1081. Launch a server, connect a client to it and try various reads
  1082. and writes.
  1083. """
  1084. server = ThreadedEchoServer(context=server_context,
  1085. chatty=chatty,
  1086. connectionchatty=False)
  1087. with server:
  1088. with client_context.wrap_socket(socket.socket()) as s:
  1089. s.connect((HOST, server.port))
  1090. for arg in [indata, bytearray(indata), memoryview(indata)]:
  1091. if connectionchatty:
  1092. if support.verbose:
  1093. sys.stdout.write(
  1094. " client: sending %r...\n" % indata)
  1095. s.write(arg)
  1096. outdata = s.read()
  1097. if connectionchatty:
  1098. if support.verbose:
  1099. sys.stdout.write(" client: read %r\n" % outdata)
  1100. if outdata != indata.lower():
  1101. raise AssertionError(
  1102. "bad data <<%r>> (%d) received; expected <<%r>> (%d)\n"
  1103. % (outdata[:20], len(outdata),
  1104. indata[:20].lower(), len(indata)))
  1105. s.write(b"over\n")
  1106. if connectionchatty:
  1107. if support.verbose:
  1108. sys.stdout.write(" client: closing connection.\n")
  1109. stats = {
  1110. 'compression': s.compression(),
  1111. 'cipher': s.cipher(),
  1112. }
  1113. s.close()
  1114. return stats
  1115. def try_protocol_combo(server_protocol, client_protocol, expect_success,
  1116. certsreqs=None, server_options=0, client_options=0):
  1117. if certsreqs is None:
  1118. certsreqs = ssl.CERT_NONE
  1119. certtype = {
  1120. ssl.CERT_NONE: "CERT_NONE",
  1121. ssl.CERT_OPTIONAL: "CERT_OPTIONAL",
  1122. ssl.CERT_REQUIRED: "CERT_REQUIRED",
  1123. }[certsreqs]
  1124. if support.verbose:
  1125. formatstr = (expect_success and " %s->%s %s\n") or " {%s->%s} %s\n"
  1126. sys.stdout.write(formatstr %
  1127. (ssl.get_protocol_name(client_protocol),
  1128. ssl.get_protocol_name(server_protocol),
  1129. certtype))
  1130. client_context = ssl.SSLContext(client_protocol)
  1131. client_context.options = ssl.OP_ALL | client_options
  1132. server_context = ssl.SSLContext(server_protocol)
  1133. server_context.options = ssl.OP_ALL | server_options
  1134. for ctx in (client_context, server_context):
  1135. ctx.verify_mode = certsreqs
  1136. # NOTE: we must enable "ALL" ciphers, otherwise an SSLv23 client
  1137. # will send an SSLv3 hello (rather than SSLv2) starting from
  1138. # OpenSSL 1.0.0 (see issue #8322).
  1139. ctx.set_ciphers("ALL")
  1140. ctx.load_cert_chain(CERTFILE)
  1141. ctx.load_verify_locations(CERTFILE)
  1142. try:
  1143. server_params_test(client_context, server_context,
  1144. chatty=False, connectionchatty=False)
  1145. # Protocol mismatch can result in either an SSLError, or a
  1146. # "Connection reset by peer" error.
  1147. except ssl.SSLError:
  1148. if expect_success:
  1149. raise
  1150. except socket.error as e:
  1151. if expect_success or e.errno != errno.ECONNRESET:
  1152. raise
  1153. else:
  1154. if not expect_success:
  1155. raise AssertionError(
  1156. "Client protocol %s succeeded with server protocol %s!"
  1157. % (ssl.get_protocol_name(client_protocol),
  1158. ssl.get_protocol_name(server_protocol)))
  1159. class ThreadedTests(unittest.TestCase):
  1160. @skip_if_broken_ubuntu_ssl
  1161. def test_echo(self):
  1162. """Basic test of an SSL client connecting to a server"""
  1163. if support.verbose:
  1164. sys.stdout.write("\n")
  1165. for protocol in PROTOCOLS:
  1166. context = ssl.SSLContext(protocol)
  1167. context.load_cert_chain(CERTFILE)
  1168. server_params_test(context, context,
  1169. chatty=True, connectionchatty=True)
  1170. def test_getpeercert(self):
  1171. if support.verbose:
  1172. sys.stdout.write("\n")
  1173. context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  1174. context.verify_mode = ssl.CERT_REQUIRED
  1175. context.load_verify_locations(CERTFILE)
  1176. context.load_cert_chain(CERTFILE)
  1177. server = ThreadedEchoServer(context=context, chatty=False)
  1178. with server:
  1179. s = context.wrap_socket(socket.socket())
  1180. s.connect((HOST, server.port))
  1181. cert = s.getpeercert()
  1182. self.assertTrue(cert, "Can't get peer certificate.")
  1183. cipher = s.cipher()
  1184. if support.verbose:
  1185. sys.stdout.write(pprint.pformat(cert) + '\n')
  1186. sys.stdout.write("Connection cipher is " + str(cipher) + '.\n')
  1187. if 'subject' not in cert:
  1188. self.fail("No subject field in certificate: %s." %
  1189. pprint.pformat(cert))
  1190. if ((('organizationName', 'Python Software Foundation'),)
  1191. not in cert['subject']):
  1192. self.fail(
  1193. "Missing or invalid 'organizationName' field in certificate subject; "
  1194. "should be 'Python Software Foundation'.")
  1195. self.assertIn('notBefore', cert)
  1196. self.assertIn('notAfter', cert)
  1197. before = ssl.cert_time_to_seconds(cert['notBefore'])
  1198. after = ssl.cert_time_to_seconds(cert['notAfter'])
  1199. self.assertLess(before, after)
  1200. s.close()
  1201. def test_empty_cert(self):
  1202. """Connecting with an empty cert file"""
  1203. bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir,
  1204. "nullcert.pem"))
  1205. def test_malformed_cert(self):
  1206. """Connecting with a badly formatted certificate (syntax error)"""
  1207. bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir,
  1208. "badcert.pem"))
  1209. def test_nonexisting_cert(self):
  1210. """Connecting with a non-existing cert file"""
  1211. bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir,
  1212. "wrongcert.pem"))
  1213. def test_malformed_key(self):
  1214. """Connecting with a badly formatted key (syntax error)"""
  1215. bad_cert_test(os.path.join(os.path.dirname(__file__) or os.curdir,
  1216. "badkey.pem"))
  1217. def test_rude_shutdown(self):
  1218. """A brutal shutdown of an SSL server should raise an IOError
  1219. in the client when attempting handshake.
  1220. """
  1221. listener_ready = threading.Event()
  1222. listener_gone = threading.Event()
  1223. s = socket.socket()
  1224. port = support.bind_port(s, HOST)
  1225. # `listener` runs in a thread. It sits in an accept() until
  1226. # the main thread connects. Then it rudely closes the socket,
  1227. # and sets Event `listener_gone` to let the main thread know
  1228. # the socket is gone.
  1229. def listener():
  1230. s.listen(5)
  1231. listener_ready.set()
  1232. newsock, addr = s.accept()
  1233. newsock.close()
  1234. s.close()
  1235. listener_gone.set()
  1236. def connector():
  1237. listener_ready.wait()
  1238. with socket.socket() as c:
  1239. c.connect((HOST, port))
  1240. listener_gone.wait()
  1241. try:
  1242. ssl_sock = ssl.wrap_socket(c)
  1243. except IOError:
  1244. pass
  1245. else:
  1246. self.fail('connecting to closed SSL socket should have failed')
  1247. t = threading.Thread(target=listener)
  1248. t.start()
  1249. try:
  1250. connector()
  1251. finally:
  1252. t.join()
  1253. @skip_if_broken_ubuntu_ssl
  1254. @unittest.skipUnless(hasattr(ssl, 'PROTOCOL_SSLv2'),
  1255. "OpenSSL is compiled without SSLv2 support")
  1256. def test_protocol_sslv2(self):
  1257. """Connecting to an SSLv2 server with various client options"""
  1258. if support.verbose:
  1259. sys.stdout.write("\n")
  1260. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True)
  1261. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_OPTIONAL)
  1262. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_REQUIRED)
  1263. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True)
  1264. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv3, False)
  1265. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_TLSv1, False)
  1266. # SSLv23 client with specific SSL options
  1267. if no_sslv2_implies_sslv3_hello():
  1268. # No SSLv2 => client will use an SSLv3 hello on recent OpenSSLs
  1269. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, False,
  1270. client_options=ssl.OP_NO_SSLv2)
  1271. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True,
  1272. client_options=ssl.OP_NO_SSLv3)
  1273. try_protocol_combo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True,
  1274. client_options=ssl.OP_NO_TLSv1)
  1275. @skip_if_broken_ubuntu_ssl
  1276. def test_protocol_sslv23(self):
  1277. """Connecting to an SSLv23 server with various client options"""
  1278. if support.verbose:
  1279. sys.stdout.write("\n")
  1280. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  1281. try:
  1282. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv2, True)
  1283. except (ssl.SSLError, socket.error) as x:
  1284. # this fails on some older versions of OpenSSL (0.9.7l, for instance)
  1285. if support.verbose:
  1286. sys.stdout.write(
  1287. " SSL2 client to SSL23 server test unexpectedly failed:\n %s\n"
  1288. % str(x))
  1289. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True)
  1290. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True)
  1291. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True)
  1292. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL)
  1293. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_OPTIONAL)
  1294. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL)
  1295. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED)
  1296. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_REQUIRED)
  1297. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED)
  1298. # Server with specific SSL options
  1299. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, False,
  1300. server_options=ssl.OP_NO_SSLv3)
  1301. # Will choose TLSv1
  1302. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True,
  1303. server_options=ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3)
  1304. try_protocol_combo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, False,
  1305. server_options=ssl.OP_NO_TLSv1)
  1306. @skip_if_broken_ubuntu_ssl
  1307. def test_protocol_sslv3(self):
  1308. """Connecting to an SSLv3 server with various client options"""
  1309. if support.verbose:
  1310. sys.stdout.write("\n")
  1311. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True)
  1312. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL)
  1313. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED)
  1314. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  1315. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv2, False)
  1316. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv23, False,
  1317. client_options=ssl.OP_NO_SSLv3)
  1318. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_TLSv1, False)
  1319. if no_sslv2_implies_sslv3_hello():
  1320. # No SSLv2 => client will use an SSLv3 hello on recent OpenSSLs
  1321. try_protocol_combo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv23, True,
  1322. client_options=ssl.OP_NO_SSLv2)
  1323. @skip_if_broken_ubuntu_ssl
  1324. def test_protocol_tlsv1(self):
  1325. """Connecting to a TLSv1 server with various client options"""
  1326. if support.verbose:
  1327. sys.stdout.write("\n")
  1328. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True)
  1329. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL)
  1330. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED)
  1331. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  1332. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv2, False)
  1333. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv3, False)
  1334. try_protocol_combo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv23, False,
  1335. client_options=ssl.OP_NO_TLSv1)
  1336. def test_starttls(self):
  1337. """Switching from clear text to encrypted and back again."""
  1338. msgs = (b"msg 1", b"MSG 2", b"STARTTLS", b"MSG 3", b"msg 4", b"ENDTLS", b"msg 5", b"msg 6")
  1339. server = ThreadedEchoServer(CERTFILE,
  1340. ssl_version=ssl.PROTOCOL_TLSv1,
  1341. starttls_server=True,
  1342. chatty=True,
  1343. connectionchatty=True)
  1344. wrapped = False
  1345. with server:
  1346. s = socket.socket()
  1347. s.setblocking(1)
  1348. s.connect((HOST, server.port))
  1349. if support.verbose:
  1350. sys.stdout.write("\n")
  1351. for indata in msgs:
  1352. if support.verbose:
  1353. sys.stdout.write(
  1354. " client: sending %r...\n" % indata)
  1355. if wrapped:
  1356. conn.write(indata)
  1357. outdata = conn.read()
  1358. else:
  1359. s.send(indata)
  1360. outdata = s.recv(1024)
  1361. msg = outdata.strip().lower()
  1362. if indata == b"STARTTLS" and msg.startswith(b"ok"):
  1363. # STARTTLS ok, switch to secure mode
  1364. if support.verbose:
  1365. sys.stdout.write(
  1366. " client: read %r from server, starting TLS...\n"
  1367. % msg)
  1368. conn = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_TLSv1)
  1369. wrapped = True
  1370. elif indata == b"ENDTLS" and msg.startswith(b"ok"):
  1371. # ENDTLS ok, switch back to clear text
  1372. if support.verbose:
  1373. sys.stdout.write(
  1374. " client: read %r from server, ending TLS...\n"
  1375. % msg)
  1376. s = conn.unwrap()
  1377. wrapped = False
  1378. else:
  1379. if support.verbose:
  1380. sys.stdout.write(
  1381. " client: read %r from server\n" % msg)
  1382. if support.verbose:
  1383. sys.stdout.write(" client: closing connection.\n")
  1384. if wrapped:
  1385. conn.write(b"over\n")
  1386. else:
  1387. s.send(b"over\n")
  1388. if wrapped:
  1389. conn.close()
  1390. else:
  1391. s.close()
  1392. def test_socketserver(self):
  1393. """Using a SocketServer to create and manage SSL connections."""
  1394. server = make_https_server(self, CERTFILE)
  1395. # try to connect
  1396. if support.verbose:
  1397. sys.stdout.write('\n')
  1398. with open(CERTFILE, 'rb') as f:
  1399. d1 = f.read()
  1400. d2 = ''
  1401. # now fetch the same data from the HTTPS server
  1402. url = 'https://%s:%d/%s' % (
  1403. HOST, server.port, os.path.split(CERTFILE)[1])
  1404. f = urllib.request.urlopen(url)
  1405. try:
  1406. dlen = f.info().get("content-length")
  1407. if dlen and (int(dlen) > 0):
  1408. d2 = f.read(int(dlen))
  1409. if support.verbose:
  1410. sys.stdout.write(
  1411. " client: read %d bytes from remote server '%s'\n"
  1412. % (len(d2), server))
  1413. finally:
  1414. f.close()
  1415. self.assertEqual(d1, d2)
  1416. def test_asyncore_server(self):
  1417. """Check the example asyncore integration."""
  1418. indata = "TEST MESSAGE of mixed case\n"
  1419. if support.verbose:
  1420. sys.stdout.write("\n")
  1421. indata = b"FOO\n"
  1422. server = AsyncoreEchoServer(CERTFILE)
  1423. with server:
  1424. s = ssl.wrap_socket(socket.socket())
  1425. s.connect(('127.0.0.1', server.port))
  1426. if support.verbose:
  1427. sys.stdout.write(
  1428. " client: sending %r...\n" % indata)
  1429. s.write(indata)
  1430. outdata = s.read()
  1431. if support.verbose:
  1432. sys.stdout.write(" client: read %r\n" % outdata)
  1433. if outdata != indata.lower():
  1434. self.fail(
  1435. "bad data <<%r>> (%d) received; expected <<%r>> (%d)\n"
  1436. % (outdata[:20], len(outdata),
  1437. indata[:20].lower(), len(indata)))
  1438. s.write(b"over\n")
  1439. if support.verbose:
  1440. sys.stdout.write(" client: closing connection.\n")
  1441. s.close()
  1442. if support.verbose:
  1443. sys.stdout.write(" client: connection closed.\n")
  1444. def test_recv_send(self):
  1445. """Test recv(), send() and friends."""
  1446. if support.verbose:
  1447. sys.stdout.write("\n")
  1448. server = ThreadedEchoServer(CERTFILE,
  1449. certreqs=ssl.CERT_NONE,
  1450. ssl_version=ssl.PROTOCOL_TLSv1,
  1451. cacerts=CERTFILE,
  1452. chatty=True,
  1453. connectionchatty=False)
  1454. with server:
  1455. s = ssl.wrap_socket(socket.socket(),
  1456. server_side=False,
  1457. certfile=CERTFILE,
  1458. ca_certs=CERTFILE,
  1459. cert_reqs=ssl.CERT_NONE,
  1460. ssl_version=ssl.PROTOCOL_TLSv1)
  1461. s.connect((HOST, server.port))
  1462. # helper methods for standardising recv* method signatures
  1463. def _recv_into():
  1464. b = bytearray(b"\0"*100)
  1465. count = s.recv_into(b)
  1466. return b[:count]
  1467. def _recvfrom_into():
  1468. b = bytearray(b"\0"*100)
  1469. count, addr = s.recvfrom_into(b)
  1470. return b[:count]
  1471. # (name, method, whether to expect success, *args)
  1472. send_methods = [
  1473. ('send', s.send, True, []),
  1474. ('sendto', s.sendto, False, ["some.address"]),
  1475. ('sendall', s.sendall, True, []),
  1476. ]
  1477. recv_methods = [
  1478. ('recv', s.recv, True, []),
  1479. ('recvfrom', s.recvfrom, False, ["some.address"]),
  1480. ('recv_into', _recv_into, True, []),
  1481. ('recvfrom_into', _recvfrom_into, False, []),
  1482. ]
  1483. data_prefix = "PREFIX_"
  1484. for meth_name, send_meth, expect_success, args in send_methods:
  1485. indata = (data_prefix + meth_name).encode('ascii')
  1486. try:
  1487. send_meth(indata, *args)
  1488. outdata = s.read()
  1489. if outdata != indata.lower():
  1490. self.fail(
  1491. "While sending with <<{name:s}>> bad data "
  1492. "<<{outdata:r}>> ({nout:d}) received; "
  1493. "expected <<{indata:r}>> ({nin:d})\n".format(
  1494. name=meth_name, outdata=outdata[:20],
  1495. nout=len(outdata),
  1496. indata=indata[:20], nin=len(indata)
  1497. )
  1498. )
  1499. except ValueError as e:
  1500. if expect_success:
  1501. self.fail(
  1502. "Failed to send with method <<{name:s}>>; "
  1503. "expected to succeed.\n".format(name=meth_name)
  1504. )
  1505. if not str(e).startswith(meth_name):
  1506. self.fail(
  1507. "Method <<{name:s}>> failed with unexpected "
  1508. "exception message: {exp:s}\n".format(
  1509. name=meth_name, exp=e
  1510. )
  1511. )
  1512. for meth_name, recv_meth, expect_success, args in recv_methods:
  1513. indata = (data_prefix + meth_name).encode('ascii')
  1514. try:
  1515. s.send(indata)
  1516. outdata = recv_meth(*args)
  1517. if outdata != indata.lower():
  1518. self.fail(
  1519. "While receiving with <<{name:s}>> bad data "
  1520. "<<{outdata:r}>> ({nout:d}) received; "
  1521. "expected <<{indata:r}>> ({nin:d})\n".format(
  1522. name=meth_name, outdata=outdata[:20],
  1523. nout=len(outdata),
  1524. indata=indata[:20], nin=len(indata)
  1525. )
  1526. )
  1527. except ValueError as e:
  1528. if expect_success:
  1529. self.fail(
  1530. "Failed to receive with method <<{name:s}>>; "
  1531. "expected to succeed.\n".format(name=meth_name)
  1532. )
  1533. if not str(e).startswith(meth_name):
  1534. self.fail(
  1535. "Method <<{name:s}>> failed with unexpected "
  1536. "exception message: {exp:s}\n".format(
  1537. name=meth_name, exp=e
  1538. )
  1539. )
  1540. # consume data
  1541. s.read()
  1542. # Make sure sendmsg et al are disallowed to avoid
  1543. # inadvertent disclosure of data and/or corruption
  1544. # of the encrypted data stream
  1545. self.assertRaises(NotImplementedError, s.sendmsg, [b"data"])
  1546. self.assertRaises(NotImplementedError, s.recvmsg, 100)
  1547. self.assertRaises(NotImplementedError,
  1548. s.recvmsg_into, bytearray(100))
  1549. s.write(b"over\n")
  1550. s.close()
  1551. def test_handshake_timeout(self):
  1552. # Issue #5103: SSL handshake must respect the socket timeout
  1553. server = socket.socket(socket.AF_INET)
  1554. host = "127.0.0.1"
  1555. port = support.bind_port(server)
  1556. started = threading.Event()
  1557. finish = False
  1558. def serve():
  1559. server.listen(5)
  1560. started.set()
  1561. conns = []
  1562. while not finish:
  1563. r, w, e = select.select([server], [], [], 0.1)
  1564. if server in r:
  1565. # Let the socket hang around rather than having
  1566. # it closed by garbage collection.
  1567. conns.append(server.accept()[0])
  1568. for sock in conns:
  1569. sock.close()
  1570. t = threading.Thread(target=serve)
  1571. t.start()
  1572. started.wait()
  1573. try:
  1574. try:
  1575. c = socket.socket(socket.AF_INET)
  1576. c.settimeout(0.2)
  1577. c.connect((host, port))
  1578. # Will attempt handshake and time out
  1579. self.assertRaisesRegex(socket.timeout, "timed out",
  1580. ssl.wrap_socket, c)
  1581. finally:
  1582. c.close()
  1583. try:
  1584. c = socket.socket(socket.AF_INET)
  1585. c = ssl.wrap_socket(c)
  1586. c.settimeout(0.2)
  1587. # Will attempt handshake and time out
  1588. self.assertRaisesRegex(socket.timeout, "timed out",
  1589. c.connect, (host, port))
  1590. finally:
  1591. c.close()
  1592. finally:
  1593. finish = True
  1594. t.join()
  1595. server.close()
  1596. def test_default_ciphers(self):
  1597. context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  1598. try:
  1599. # Force a set of weak ciphers on our client context
  1600. context.set_ciphers("DES")
  1601. except ssl.SSLError:
  1602. self.skipTest("no DES cipher available")
  1603. with ThreadedEchoServer(CERTFILE,
  1604. ssl_version=ssl.PROTOCOL_SSLv23,
  1605. chatty=False) as server:
  1606. with socket.socket() as sock:
  1607. s = context.wrap_socket(sock)
  1608. with self.assertRaises((OSError, ssl.SSLError)):
  1609. s.connect((HOST, server.port))
  1610. self.assertIn("no shared cipher", str(server.conn_errors[0]))
  1611. @unittest.skipUnless("tls-unique" in ssl.CHANNEL_BINDING_TYPES,
  1612. "'tls-unique' channel binding not available")
  1613. def test_tls_unique_channel_binding(self):
  1614. """Test tls-unique channel binding."""
  1615. if support.verbose:
  1616. sys.stdout.write("\n")
  1617. server = ThreadedEchoServer(CERTFILE,
  1618. certreqs=ssl.CERT_NONE,
  1619. ssl_version=ssl.PROTOCOL_TLSv1,
  1620. cacerts=CERTFILE,
  1621. chatty=True,
  1622. connectionchatty=False)
  1623. with server:
  1624. s = ssl.wrap_socket(socket.socket(),
  1625. server_side=False,
  1626. certfile=CERTFILE,
  1627. ca_certs=CERTFILE,
  1628. cert_reqs=ssl.CERT_NONE,
  1629. ssl_version=ssl.PROTOCOL_TLSv1)
  1630. s.connect((HOST, server.port))
  1631. # get the data
  1632. cb_data = s.get_channel_binding("tls-unique")
  1633. if support.verbose:
  1634. sys.stdout.write(" got channel binding data: {0!r}\n"
  1635. .format(cb_data))
  1636. # check if it is sane
  1637. self.assertIsNotNone(cb_data)
  1638. self.assertEqual(len(cb_data), 12) # True for TLSv1
  1639. # and compare with the peers version
  1640. s.write(b"CB tls-unique\n")
  1641. peer_data_repr = s.read().strip()
  1642. self.assertEqual(peer_data_repr,
  1643. repr(cb_data).encode("us-ascii"))
  1644. s.close()
  1645. # now, again
  1646. s = ssl.wrap_socket(socket.socket(),
  1647. server_side=False,
  1648. certfile=CERTFILE,
  1649. ca_certs=CERTFILE,
  1650. cert_reqs=ssl.CERT_NONE,
  1651. ssl_version=ssl.PROTOCOL_TLSv1)
  1652. s.connect((HOST, server.port))
  1653. new_cb_data = s.get_channel_binding("tls-unique")
  1654. if support.verbose:
  1655. sys.stdout.write(" got another channel binding data: {0!r}\n"
  1656. .format(new_cb_data))
  1657. # is it really unique
  1658. self.assertNotEqual(cb_data, new_cb_data)
  1659. self.assertIsNotNone(cb_data)
  1660. self.assertEqual(len(cb_data), 12) # True for TLSv1
  1661. s.write(b"CB tls-unique\n")
  1662. peer_data_repr = s.read().strip()
  1663. self.assertEqual(peer_data_repr,
  1664. repr(new_cb_data).encode("us-ascii"))
  1665. s.close()
  1666. def test_compression(self):
  1667. context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  1668. context.load_cert_chain(CERTFILE)
  1669. stats = server_params_test(context, context,
  1670. chatty=True, connectionchatty=True)
  1671. if support.verbose:
  1672. sys.stdout.write(" got compression: {!r}\n".format(stats['compression']))
  1673. self.assertIn(stats['compression'], { None, 'ZLIB', 'RLE' })
  1674. @unittest.skipUnless(hasattr(ssl, 'OP_NO_COMPRESSION'),
  1675. "ssl.OP_NO_COMPRESSION needed for this test")
  1676. def test_compression_disabled(self):
  1677. context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  1678. context.load_cert_chain(CERTFILE)
  1679. context.options |= ssl.OP_NO_COMPRESSION
  1680. stats = server_params_test(context, context,
  1681. chatty=True, connectionchatty=True)
  1682. self.assertIs(stats['compression'], None)
  1683. def test_dh_params(self):
  1684. # Check we can get a connection with ephemeral Diffie-Hellman
  1685. context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  1686. context.load_cert_chain(CERTFILE)
  1687. context.load_dh_params(DHFILE)
  1688. context.set_ciphers("kEDH")
  1689. stats = server_params_test(context, context,
  1690. chatty=True, connectionchatty=True)
  1691. cipher = stats["cipher"][0]
  1692. parts = cipher.split("-")
  1693. if "ADH" not in parts and "EDH" not in parts and "DHE" not in parts:
  1694. self.fail("Non-DH cipher: " + cipher[0])
  1695. def test_main(verbose=False):
  1696. if support.verbose:
  1697. plats = {
  1698. 'Linux': platform.linux_distribution,
  1699. 'Mac': platform.mac_ver,
  1700. 'Windows': platform.win32_ver,
  1701. }
  1702. for name, func in plats.items():
  1703. plat = func()
  1704. if plat and plat[0]:
  1705. plat = '%s %r' % (name, plat)
  1706. break
  1707. else:
  1708. plat = repr(platform.platform())
  1709. print("test_ssl: testing with %r %r" %
  1710. (ssl.OPENSSL_VERSION, ssl.OPENSSL_VERSION_INFO))
  1711. print(" under %s" % plat)
  1712. print(" HAS_SNI = %r" % ssl.HAS_SNI)
  1713. for filename in [
  1714. CERTFILE, SVN_PYTHON_ORG_ROOT_CERT, BYTES_CERTFILE,
  1715. ONLYCERT, ONLYKEY, BYTES_ONLYCERT, BYTES_ONLYKEY,
  1716. BADCERT, BADKEY, EMPTYCERT]:
  1717. if not os.path.exists(filename):
  1718. raise support.TestFailed("Can't read certificate file %r" % filename)
  1719. tests = [ContextTests, BasicSocketTests]
  1720. if support.is_resource_enabled('network'):
  1721. tests.append(NetworkedTests)
  1722. if _have_threads:
  1723. thread_info = support.threading_setup()
  1724. if thread_info and support.is_resource_enabled('network'):
  1725. tests.append(ThreadedTests)
  1726. try:
  1727. support.run_unittest(*tests)
  1728. finally:
  1729. if _have_threads:
  1730. support.threading_cleanup(*thread_info)
  1731. if __name__ == "__main__":
  1732. test_main()