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/Lib/test/test_ssl.py

https://bitbucket.org/python_mirrors/features-pep-433
Python | 2179 lines | 2037 code | 80 blank | 62 comment | 166 complexity | f78128d6dab58d7ed8addf6f6eac1741 MD5 | raw file
Possible License(s): BSD-3-Clause, 0BSD

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  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. # Two keys and certs signed by the same CA (for SNI tests)
  44. SIGNED_CERTFILE = data_file("keycert3.pem")
  45. SIGNED_CERTFILE2 = data_file("keycert4.pem")
  46. SIGNING_CA = data_file("pycacert.pem")
  47. SVN_PYTHON_ORG_ROOT_CERT = data_file("https_svn_python_org_root.pem")
  48. EMPTYCERT = data_file("nullcert.pem")
  49. BADCERT = data_file("badcert.pem")
  50. WRONGCERT = data_file("XXXnonexisting.pem")
  51. BADKEY = data_file("badkey.pem")
  52. NOKIACERT = data_file("nokia.pem")
  53. DHFILE = data_file("dh512.pem")
  54. BYTES_DHFILE = os.fsencode(DHFILE)
  55. def handle_error(prefix):
  56. exc_format = ' '.join(traceback.format_exception(*sys.exc_info()))
  57. if support.verbose:
  58. sys.stdout.write(prefix + exc_format)
  59. def can_clear_options():
  60. # 0.9.8m or higher
  61. return ssl._OPENSSL_API_VERSION >= (0, 9, 8, 13, 15)
  62. def no_sslv2_implies_sslv3_hello():
  63. # 0.9.7h or higher
  64. return ssl.OPENSSL_VERSION_INFO >= (0, 9, 7, 8, 15)
  65. # Issue #9415: Ubuntu hijacks their OpenSSL and forcefully disables SSLv2
  66. def skip_if_broken_ubuntu_ssl(func):
  67. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  68. @functools.wraps(func)
  69. def f(*args, **kwargs):
  70. try:
  71. ssl.SSLContext(ssl.PROTOCOL_SSLv2)
  72. except ssl.SSLError:
  73. if (ssl.OPENSSL_VERSION_INFO == (0, 9, 8, 15, 15) and
  74. platform.linux_distribution() == ('debian', 'squeeze/sid', '')):
  75. raise unittest.SkipTest("Patched Ubuntu OpenSSL breaks behaviour")
  76. return func(*args, **kwargs)
  77. return f
  78. else:
  79. return func
  80. needs_sni = unittest.skipUnless(ssl.HAS_SNI, "SNI support needed for this test")
  81. class BasicSocketTests(unittest.TestCase):
  82. def test_constants(self):
  83. #ssl.PROTOCOL_SSLv2
  84. ssl.PROTOCOL_SSLv23
  85. ssl.PROTOCOL_SSLv3
  86. ssl.PROTOCOL_TLSv1
  87. ssl.CERT_NONE
  88. ssl.CERT_OPTIONAL
  89. ssl.CERT_REQUIRED
  90. ssl.OP_CIPHER_SERVER_PREFERENCE
  91. ssl.OP_SINGLE_DH_USE
  92. if ssl.HAS_ECDH:
  93. ssl.OP_SINGLE_ECDH_USE
  94. if ssl.OPENSSL_VERSION_INFO >= (1, 0):
  95. ssl.OP_NO_COMPRESSION
  96. self.assertIn(ssl.HAS_SNI, {True, False})
  97. self.assertIn(ssl.HAS_ECDH, {True, False})
  98. def test_random(self):
  99. v = ssl.RAND_status()
  100. if support.verbose:
  101. sys.stdout.write("\n RAND_status is %d (%s)\n"
  102. % (v, (v and "sufficient randomness") or
  103. "insufficient randomness"))
  104. data, is_cryptographic = ssl.RAND_pseudo_bytes(16)
  105. self.assertEqual(len(data), 16)
  106. self.assertEqual(is_cryptographic, v == 1)
  107. if v:
  108. data = ssl.RAND_bytes(16)
  109. self.assertEqual(len(data), 16)
  110. else:
  111. self.assertRaises(ssl.SSLError, ssl.RAND_bytes, 16)
  112. self.assertRaises(TypeError, ssl.RAND_egd, 1)
  113. self.assertRaises(TypeError, ssl.RAND_egd, 'foo', 1)
  114. ssl.RAND_add("this is a random string", 75.0)
  115. def test_parse_cert(self):
  116. # note that this uses an 'unofficial' function in _ssl.c,
  117. # provided solely for this test, to exercise the certificate
  118. # parsing code
  119. p = ssl._ssl._test_decode_cert(CERTFILE)
  120. if support.verbose:
  121. sys.stdout.write("\n" + pprint.pformat(p) + "\n")
  122. self.assertEqual(p['issuer'],
  123. ((('countryName', 'XY'),),
  124. (('localityName', 'Castle Anthrax'),),
  125. (('organizationName', 'Python Software Foundation'),),
  126. (('commonName', 'localhost'),))
  127. )
  128. # Note the next three asserts will fail if the keys are regenerated
  129. self.assertEqual(p['notAfter'], 'Oct 5 23:01:56 2020 GMT')
  130. self.assertEqual(p['notBefore'], 'Oct 8 23:01:56 2010 GMT')
  131. self.assertEqual(p['serialNumber'], 'D7C7381919AFC24E')
  132. self.assertEqual(p['subject'],
  133. ((('countryName', 'XY'),),
  134. (('localityName', 'Castle Anthrax'),),
  135. (('organizationName', 'Python Software Foundation'),),
  136. (('commonName', 'localhost'),))
  137. )
  138. self.assertEqual(p['subjectAltName'], (('DNS', 'localhost'),))
  139. # Issue #13034: the subjectAltName in some certificates
  140. # (notably projects.developer.nokia.com:443) wasn't parsed
  141. p = ssl._ssl._test_decode_cert(NOKIACERT)
  142. if support.verbose:
  143. sys.stdout.write("\n" + pprint.pformat(p) + "\n")
  144. self.assertEqual(p['subjectAltName'],
  145. (('DNS', 'projects.developer.nokia.com'),
  146. ('DNS', 'projects.forum.nokia.com'))
  147. )
  148. def test_DER_to_PEM(self):
  149. with open(SVN_PYTHON_ORG_ROOT_CERT, 'r') as f:
  150. pem = f.read()
  151. d1 = ssl.PEM_cert_to_DER_cert(pem)
  152. p2 = ssl.DER_cert_to_PEM_cert(d1)
  153. d2 = ssl.PEM_cert_to_DER_cert(p2)
  154. self.assertEqual(d1, d2)
  155. if not p2.startswith(ssl.PEM_HEADER + '\n'):
  156. self.fail("DER-to-PEM didn't include correct header:\n%r\n" % p2)
  157. if not p2.endswith('\n' + ssl.PEM_FOOTER + '\n'):
  158. self.fail("DER-to-PEM didn't include correct footer:\n%r\n" % p2)
  159. def test_openssl_version(self):
  160. n = ssl.OPENSSL_VERSION_NUMBER
  161. t = ssl.OPENSSL_VERSION_INFO
  162. s = ssl.OPENSSL_VERSION
  163. self.assertIsInstance(n, int)
  164. self.assertIsInstance(t, tuple)
  165. self.assertIsInstance(s, str)
  166. # Some sanity checks follow
  167. # >= 0.9
  168. self.assertGreaterEqual(n, 0x900000)
  169. # < 2.0
  170. self.assertLess(n, 0x20000000)
  171. major, minor, fix, patch, status = t
  172. self.assertGreaterEqual(major, 0)
  173. self.assertLess(major, 2)
  174. self.assertGreaterEqual(minor, 0)
  175. self.assertLess(minor, 256)
  176. self.assertGreaterEqual(fix, 0)
  177. self.assertLess(fix, 256)
  178. self.assertGreaterEqual(patch, 0)
  179. self.assertLessEqual(patch, 26)
  180. self.assertGreaterEqual(status, 0)
  181. self.assertLessEqual(status, 15)
  182. # Version string as returned by OpenSSL, the format might change
  183. self.assertTrue(s.startswith("OpenSSL {:d}.{:d}.{:d}".format(major, minor, fix)),
  184. (s, t))
  185. @support.cpython_only
  186. def test_refcycle(self):
  187. # Issue #7943: an SSL object doesn't create reference cycles with
  188. # itself.
  189. s = socket.socket(socket.AF_INET)
  190. ss = ssl.wrap_socket(s)
  191. wr = weakref.ref(ss)
  192. with support.check_warnings(("", ResourceWarning)):
  193. del ss
  194. self.assertEqual(wr(), None)
  195. def test_wrapped_unconnected(self):
  196. # Methods on an unconnected SSLSocket propagate the original
  197. # OSError raise by the underlying socket object.
  198. s = socket.socket(socket.AF_INET)
  199. with ssl.wrap_socket(s) as ss:
  200. self.assertRaises(OSError, ss.recv, 1)
  201. self.assertRaises(OSError, ss.recv_into, bytearray(b'x'))
  202. self.assertRaises(OSError, ss.recvfrom, 1)
  203. self.assertRaises(OSError, ss.recvfrom_into, bytearray(b'x'), 1)
  204. self.assertRaises(OSError, ss.send, b'x')
  205. self.assertRaises(OSError, ss.sendto, b'x', ('0.0.0.0', 0))
  206. def test_timeout(self):
  207. # Issue #8524: when creating an SSL socket, the timeout of the
  208. # original socket should be retained.
  209. for timeout in (None, 0.0, 5.0):
  210. s = socket.socket(socket.AF_INET)
  211. s.settimeout(timeout)
  212. with ssl.wrap_socket(s) as ss:
  213. self.assertEqual(timeout, ss.gettimeout())
  214. def test_errors(self):
  215. sock = socket.socket()
  216. self.assertRaisesRegex(ValueError,
  217. "certfile must be specified",
  218. ssl.wrap_socket, sock, keyfile=CERTFILE)
  219. self.assertRaisesRegex(ValueError,
  220. "certfile must be specified for server-side operations",
  221. ssl.wrap_socket, sock, server_side=True)
  222. self.assertRaisesRegex(ValueError,
  223. "certfile must be specified for server-side operations",
  224. ssl.wrap_socket, sock, server_side=True, certfile="")
  225. with ssl.wrap_socket(sock, server_side=True, certfile=CERTFILE) as s:
  226. self.assertRaisesRegex(ValueError, "can't connect in server-side mode",
  227. s.connect, (HOST, 8080))
  228. with self.assertRaises(OSError) as cm:
  229. with socket.socket() as sock:
  230. ssl.wrap_socket(sock, certfile=WRONGCERT)
  231. self.assertEqual(cm.exception.errno, errno.ENOENT)
  232. with self.assertRaises(OSError) as cm:
  233. with socket.socket() as sock:
  234. ssl.wrap_socket(sock, certfile=CERTFILE, keyfile=WRONGCERT)
  235. self.assertEqual(cm.exception.errno, errno.ENOENT)
  236. with self.assertRaises(OSError) as cm:
  237. with socket.socket() as sock:
  238. ssl.wrap_socket(sock, certfile=WRONGCERT, keyfile=WRONGCERT)
  239. self.assertEqual(cm.exception.errno, errno.ENOENT)
  240. def test_match_hostname(self):
  241. def ok(cert, hostname):
  242. ssl.match_hostname(cert, hostname)
  243. def fail(cert, hostname):
  244. self.assertRaises(ssl.CertificateError,
  245. ssl.match_hostname, cert, hostname)
  246. cert = {'subject': ((('commonName', 'example.com'),),)}
  247. ok(cert, 'example.com')
  248. ok(cert, 'ExAmple.cOm')
  249. fail(cert, 'www.example.com')
  250. fail(cert, '.example.com')
  251. fail(cert, 'example.org')
  252. fail(cert, 'exampleXcom')
  253. cert = {'subject': ((('commonName', '*.a.com'),),)}
  254. ok(cert, 'foo.a.com')
  255. fail(cert, 'bar.foo.a.com')
  256. fail(cert, 'a.com')
  257. fail(cert, 'Xa.com')
  258. fail(cert, '.a.com')
  259. cert = {'subject': ((('commonName', 'a.*.com'),),)}
  260. ok(cert, 'a.foo.com')
  261. fail(cert, 'a..com')
  262. fail(cert, 'a.com')
  263. cert = {'subject': ((('commonName', 'f*.com'),),)}
  264. ok(cert, 'foo.com')
  265. ok(cert, 'f.com')
  266. fail(cert, 'bar.com')
  267. fail(cert, 'foo.a.com')
  268. fail(cert, 'bar.foo.com')
  269. # Slightly fake real-world example
  270. cert = {'notAfter': 'Jun 26 21:41:46 2011 GMT',
  271. 'subject': ((('commonName', 'linuxfrz.org'),),),
  272. 'subjectAltName': (('DNS', 'linuxfr.org'),
  273. ('DNS', 'linuxfr.com'),
  274. ('othername', '<unsupported>'))}
  275. ok(cert, 'linuxfr.org')
  276. ok(cert, 'linuxfr.com')
  277. # Not a "DNS" entry
  278. fail(cert, '<unsupported>')
  279. # When there is a subjectAltName, commonName isn't used
  280. fail(cert, 'linuxfrz.org')
  281. # A pristine real-world example
  282. cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT',
  283. 'subject': ((('countryName', 'US'),),
  284. (('stateOrProvinceName', 'California'),),
  285. (('localityName', 'Mountain View'),),
  286. (('organizationName', 'Google Inc'),),
  287. (('commonName', 'mail.google.com'),))}
  288. ok(cert, 'mail.google.com')
  289. fail(cert, 'gmail.com')
  290. # Only commonName is considered
  291. fail(cert, 'California')
  292. # Neither commonName nor subjectAltName
  293. cert = {'notAfter': 'Dec 18 23:59:59 2011 GMT',
  294. 'subject': ((('countryName', 'US'),),
  295. (('stateOrProvinceName', 'California'),),
  296. (('localityName', 'Mountain View'),),
  297. (('organizationName', 'Google Inc'),))}
  298. fail(cert, 'mail.google.com')
  299. # No DNS entry in subjectAltName but a commonName
  300. cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT',
  301. 'subject': ((('countryName', 'US'),),
  302. (('stateOrProvinceName', 'California'),),
  303. (('localityName', 'Mountain View'),),
  304. (('commonName', 'mail.google.com'),)),
  305. 'subjectAltName': (('othername', 'blabla'), )}
  306. ok(cert, 'mail.google.com')
  307. # No DNS entry subjectAltName and no commonName
  308. cert = {'notAfter': 'Dec 18 23:59:59 2099 GMT',
  309. 'subject': ((('countryName', 'US'),),
  310. (('stateOrProvinceName', 'California'),),
  311. (('localityName', 'Mountain View'),),
  312. (('organizationName', 'Google Inc'),)),
  313. 'subjectAltName': (('othername', 'blabla'),)}
  314. fail(cert, 'google.com')
  315. # Empty cert / no cert
  316. self.assertRaises(ValueError, ssl.match_hostname, None, 'example.com')
  317. self.assertRaises(ValueError, ssl.match_hostname, {}, 'example.com')
  318. def test_server_side(self):
  319. # server_hostname doesn't work for server sockets
  320. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  321. with socket.socket() as sock:
  322. self.assertRaises(ValueError, ctx.wrap_socket, sock, True,
  323. server_hostname="some.hostname")
  324. def test_unknown_channel_binding(self):
  325. # should raise ValueError for unknown type
  326. s = socket.socket(socket.AF_INET)
  327. with ssl.wrap_socket(s) as ss:
  328. with self.assertRaises(ValueError):
  329. ss.get_channel_binding("unknown-type")
  330. @unittest.skipUnless("tls-unique" in ssl.CHANNEL_BINDING_TYPES,
  331. "'tls-unique' channel binding not available")
  332. def test_tls_unique_channel_binding(self):
  333. # unconnected should return None for known type
  334. s = socket.socket(socket.AF_INET)
  335. with ssl.wrap_socket(s) as ss:
  336. self.assertIsNone(ss.get_channel_binding("tls-unique"))
  337. # the same for server-side
  338. s = socket.socket(socket.AF_INET)
  339. with ssl.wrap_socket(s, server_side=True, certfile=CERTFILE) as ss:
  340. self.assertIsNone(ss.get_channel_binding("tls-unique"))
  341. def test_dealloc_warn(self):
  342. ss = ssl.wrap_socket(socket.socket(socket.AF_INET))
  343. r = repr(ss)
  344. with self.assertWarns(ResourceWarning) as cm:
  345. ss = None
  346. support.gc_collect()
  347. self.assertIn(r, str(cm.warning.args[0]))
  348. class ContextTests(unittest.TestCase):
  349. @skip_if_broken_ubuntu_ssl
  350. def test_constructor(self):
  351. if hasattr(ssl, 'PROTOCOL_SSLv2'):
  352. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv2)
  353. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  354. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv3)
  355. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  356. self.assertRaises(TypeError, ssl.SSLContext)
  357. self.assertRaises(ValueError, ssl.SSLContext, -1)
  358. self.assertRaises(ValueError, ssl.SSLContext, 42)
  359. @skip_if_broken_ubuntu_ssl
  360. def test_protocol(self):
  361. for proto in PROTOCOLS:
  362. ctx = ssl.SSLContext(proto)
  363. self.assertEqual(ctx.protocol, proto)
  364. def test_ciphers(self):
  365. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  366. ctx.set_ciphers("ALL")
  367. ctx.set_ciphers("DEFAULT")
  368. with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"):
  369. ctx.set_ciphers("^$:,;?*'dorothyx")
  370. @skip_if_broken_ubuntu_ssl
  371. def test_options(self):
  372. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  373. # OP_ALL is the default value
  374. self.assertEqual(ssl.OP_ALL, ctx.options)
  375. ctx.options |= ssl.OP_NO_SSLv2
  376. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2,
  377. ctx.options)
  378. ctx.options |= ssl.OP_NO_SSLv3
  379. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3,
  380. ctx.options)
  381. if can_clear_options():
  382. ctx.options = (ctx.options & ~ssl.OP_NO_SSLv2) | ssl.OP_NO_TLSv1
  383. self.assertEqual(ssl.OP_ALL | ssl.OP_NO_TLSv1 | ssl.OP_NO_SSLv3,
  384. ctx.options)
  385. ctx.options = 0
  386. self.assertEqual(0, ctx.options)
  387. else:
  388. with self.assertRaises(ValueError):
  389. ctx.options = 0
  390. def test_verify(self):
  391. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  392. # Default value
  393. self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
  394. ctx.verify_mode = ssl.CERT_OPTIONAL
  395. self.assertEqual(ctx.verify_mode, ssl.CERT_OPTIONAL)
  396. ctx.verify_mode = ssl.CERT_REQUIRED
  397. self.assertEqual(ctx.verify_mode, ssl.CERT_REQUIRED)
  398. ctx.verify_mode = ssl.CERT_NONE
  399. self.assertEqual(ctx.verify_mode, ssl.CERT_NONE)
  400. with self.assertRaises(TypeError):
  401. ctx.verify_mode = None
  402. with self.assertRaises(ValueError):
  403. ctx.verify_mode = 42
  404. def test_load_cert_chain(self):
  405. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  406. # Combined key and cert in a single file
  407. ctx.load_cert_chain(CERTFILE)
  408. ctx.load_cert_chain(CERTFILE, keyfile=CERTFILE)
  409. self.assertRaises(TypeError, ctx.load_cert_chain, keyfile=CERTFILE)
  410. with self.assertRaises(OSError) as cm:
  411. ctx.load_cert_chain(WRONGCERT)
  412. self.assertEqual(cm.exception.errno, errno.ENOENT)
  413. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  414. ctx.load_cert_chain(BADCERT)
  415. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  416. ctx.load_cert_chain(EMPTYCERT)
  417. # Separate key and cert
  418. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  419. ctx.load_cert_chain(ONLYCERT, ONLYKEY)
  420. ctx.load_cert_chain(certfile=ONLYCERT, keyfile=ONLYKEY)
  421. ctx.load_cert_chain(certfile=BYTES_ONLYCERT, keyfile=BYTES_ONLYKEY)
  422. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  423. ctx.load_cert_chain(ONLYCERT)
  424. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  425. ctx.load_cert_chain(ONLYKEY)
  426. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  427. ctx.load_cert_chain(certfile=ONLYKEY, keyfile=ONLYCERT)
  428. # Mismatching key and cert
  429. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  430. with self.assertRaisesRegex(ssl.SSLError, "key values mismatch"):
  431. ctx.load_cert_chain(SVN_PYTHON_ORG_ROOT_CERT, ONLYKEY)
  432. # Password protected key and cert
  433. ctx.load_cert_chain(CERTFILE_PROTECTED, password=KEY_PASSWORD)
  434. ctx.load_cert_chain(CERTFILE_PROTECTED, password=KEY_PASSWORD.encode())
  435. ctx.load_cert_chain(CERTFILE_PROTECTED,
  436. password=bytearray(KEY_PASSWORD.encode()))
  437. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED, KEY_PASSWORD)
  438. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED, KEY_PASSWORD.encode())
  439. ctx.load_cert_chain(ONLYCERT, ONLYKEY_PROTECTED,
  440. bytearray(KEY_PASSWORD.encode()))
  441. with self.assertRaisesRegex(TypeError, "should be a string"):
  442. ctx.load_cert_chain(CERTFILE_PROTECTED, password=True)
  443. with self.assertRaises(ssl.SSLError):
  444. ctx.load_cert_chain(CERTFILE_PROTECTED, password="badpass")
  445. with self.assertRaisesRegex(ValueError, "cannot be longer"):
  446. # openssl has a fixed limit on the password buffer.
  447. # PEM_BUFSIZE is generally set to 1kb.
  448. # Return a string larger than this.
  449. ctx.load_cert_chain(CERTFILE_PROTECTED, password=b'a' * 102400)
  450. # Password callback
  451. def getpass_unicode():
  452. return KEY_PASSWORD
  453. def getpass_bytes():
  454. return KEY_PASSWORD.encode()
  455. def getpass_bytearray():
  456. return bytearray(KEY_PASSWORD.encode())
  457. def getpass_badpass():
  458. return "badpass"
  459. def getpass_huge():
  460. return b'a' * (1024 * 1024)
  461. def getpass_bad_type():
  462. return 9
  463. def getpass_exception():
  464. raise Exception('getpass error')
  465. class GetPassCallable:
  466. def __call__(self):
  467. return KEY_PASSWORD
  468. def getpass(self):
  469. return KEY_PASSWORD
  470. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_unicode)
  471. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bytes)
  472. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bytearray)
  473. ctx.load_cert_chain(CERTFILE_PROTECTED, password=GetPassCallable())
  474. ctx.load_cert_chain(CERTFILE_PROTECTED,
  475. password=GetPassCallable().getpass)
  476. with self.assertRaises(ssl.SSLError):
  477. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_badpass)
  478. with self.assertRaisesRegex(ValueError, "cannot be longer"):
  479. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_huge)
  480. with self.assertRaisesRegex(TypeError, "must return a string"):
  481. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_bad_type)
  482. with self.assertRaisesRegex(Exception, "getpass error"):
  483. ctx.load_cert_chain(CERTFILE_PROTECTED, password=getpass_exception)
  484. # Make sure the password function isn't called if it isn't needed
  485. ctx.load_cert_chain(CERTFILE, password=getpass_exception)
  486. def test_load_verify_locations(self):
  487. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  488. ctx.load_verify_locations(CERTFILE)
  489. ctx.load_verify_locations(cafile=CERTFILE, capath=None)
  490. ctx.load_verify_locations(BYTES_CERTFILE)
  491. ctx.load_verify_locations(cafile=BYTES_CERTFILE, capath=None)
  492. self.assertRaises(TypeError, ctx.load_verify_locations)
  493. self.assertRaises(TypeError, ctx.load_verify_locations, None, None)
  494. with self.assertRaises(OSError) as cm:
  495. ctx.load_verify_locations(WRONGCERT)
  496. self.assertEqual(cm.exception.errno, errno.ENOENT)
  497. with self.assertRaisesRegex(ssl.SSLError, "PEM lib"):
  498. ctx.load_verify_locations(BADCERT)
  499. ctx.load_verify_locations(CERTFILE, CAPATH)
  500. ctx.load_verify_locations(CERTFILE, capath=BYTES_CAPATH)
  501. # Issue #10989: crash if the second argument type is invalid
  502. self.assertRaises(TypeError, ctx.load_verify_locations, None, True)
  503. def test_load_dh_params(self):
  504. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  505. ctx.load_dh_params(DHFILE)
  506. if os.name != 'nt':
  507. ctx.load_dh_params(BYTES_DHFILE)
  508. self.assertRaises(TypeError, ctx.load_dh_params)
  509. self.assertRaises(TypeError, ctx.load_dh_params, None)
  510. with self.assertRaises(FileNotFoundError) as cm:
  511. ctx.load_dh_params(WRONGCERT)
  512. self.assertEqual(cm.exception.errno, errno.ENOENT)
  513. with self.assertRaises(ssl.SSLError) as cm:
  514. ctx.load_dh_params(CERTFILE)
  515. @skip_if_broken_ubuntu_ssl
  516. def test_session_stats(self):
  517. for proto in PROTOCOLS:
  518. ctx = ssl.SSLContext(proto)
  519. self.assertEqual(ctx.session_stats(), {
  520. 'number': 0,
  521. 'connect': 0,
  522. 'connect_good': 0,
  523. 'connect_renegotiate': 0,
  524. 'accept': 0,
  525. 'accept_good': 0,
  526. 'accept_renegotiate': 0,
  527. 'hits': 0,
  528. 'misses': 0,
  529. 'timeouts': 0,
  530. 'cache_full': 0,
  531. })
  532. def test_set_default_verify_paths(self):
  533. # There's not much we can do to test that it acts as expected,
  534. # so just check it doesn't crash or raise an exception.
  535. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  536. ctx.set_default_verify_paths()
  537. @unittest.skipUnless(ssl.HAS_ECDH, "ECDH disabled on this OpenSSL build")
  538. def test_set_ecdh_curve(self):
  539. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  540. ctx.set_ecdh_curve("prime256v1")
  541. ctx.set_ecdh_curve(b"prime256v1")
  542. self.assertRaises(TypeError, ctx.set_ecdh_curve)
  543. self.assertRaises(TypeError, ctx.set_ecdh_curve, None)
  544. self.assertRaises(ValueError, ctx.set_ecdh_curve, "foo")
  545. self.assertRaises(ValueError, ctx.set_ecdh_curve, b"foo")
  546. @needs_sni
  547. def test_sni_callback(self):
  548. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  549. # set_servername_callback expects a callable, or None
  550. self.assertRaises(TypeError, ctx.set_servername_callback)
  551. self.assertRaises(TypeError, ctx.set_servername_callback, 4)
  552. self.assertRaises(TypeError, ctx.set_servername_callback, "")
  553. self.assertRaises(TypeError, ctx.set_servername_callback, ctx)
  554. def dummycallback(sock, servername, ctx):
  555. pass
  556. ctx.set_servername_callback(None)
  557. ctx.set_servername_callback(dummycallback)
  558. @needs_sni
  559. def test_sni_callback_refcycle(self):
  560. # Reference cycles through the servername callback are detected
  561. # and cleared.
  562. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  563. def dummycallback(sock, servername, ctx, cycle=ctx):
  564. pass
  565. ctx.set_servername_callback(dummycallback)
  566. wr = weakref.ref(ctx)
  567. del ctx, dummycallback
  568. gc.collect()
  569. self.assertIs(wr(), None)
  570. class SSLErrorTests(unittest.TestCase):
  571. def test_str(self):
  572. # The str() of a SSLError doesn't include the errno
  573. e = ssl.SSLError(1, "foo")
  574. self.assertEqual(str(e), "foo")
  575. self.assertEqual(e.errno, 1)
  576. # Same for a subclass
  577. e = ssl.SSLZeroReturnError(1, "foo")
  578. self.assertEqual(str(e), "foo")
  579. self.assertEqual(e.errno, 1)
  580. def test_lib_reason(self):
  581. # Test the library and reason attributes
  582. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  583. with self.assertRaises(ssl.SSLError) as cm:
  584. ctx.load_dh_params(CERTFILE)
  585. self.assertEqual(cm.exception.library, 'PEM')
  586. self.assertEqual(cm.exception.reason, 'NO_START_LINE')
  587. s = str(cm.exception)
  588. self.assertTrue(s.startswith("[PEM: NO_START_LINE] no start line"), s)
  589. def test_subclass(self):
  590. # Check that the appropriate SSLError subclass is raised
  591. # (this only tests one of them)
  592. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  593. with socket.socket() as s:
  594. s.bind(("127.0.0.1", 0))
  595. s.listen(5)
  596. c = socket.socket()
  597. c.connect(s.getsockname())
  598. c.setblocking(False)
  599. with ctx.wrap_socket(c, False, do_handshake_on_connect=False) as c:
  600. with self.assertRaises(ssl.SSLWantReadError) as cm:
  601. c.do_handshake()
  602. s = str(cm.exception)
  603. self.assertTrue(s.startswith("The operation did not complete (read)"), s)
  604. # For compatibility
  605. self.assertEqual(cm.exception.errno, ssl.SSL_ERROR_WANT_READ)
  606. class NetworkedTests(unittest.TestCase):
  607. def test_connect(self):
  608. with support.transient_internet("svn.python.org"):
  609. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  610. cert_reqs=ssl.CERT_NONE)
  611. try:
  612. s.connect(("svn.python.org", 443))
  613. self.assertEqual({}, s.getpeercert())
  614. finally:
  615. s.close()
  616. # this should fail because we have no verification certs
  617. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  618. cert_reqs=ssl.CERT_REQUIRED)
  619. self.assertRaisesRegex(ssl.SSLError, "certificate verify failed",
  620. s.connect, ("svn.python.org", 443))
  621. s.close()
  622. # this should succeed because we specify the root cert
  623. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  624. cert_reqs=ssl.CERT_REQUIRED,
  625. ca_certs=SVN_PYTHON_ORG_ROOT_CERT)
  626. try:
  627. s.connect(("svn.python.org", 443))
  628. self.assertTrue(s.getpeercert())
  629. finally:
  630. s.close()
  631. def test_connect_ex(self):
  632. # Issue #11326: check connect_ex() implementation
  633. with support.transient_internet("svn.python.org"):
  634. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  635. cert_reqs=ssl.CERT_REQUIRED,
  636. ca_certs=SVN_PYTHON_ORG_ROOT_CERT)
  637. try:
  638. self.assertEqual(0, s.connect_ex(("svn.python.org", 443)))
  639. self.assertTrue(s.getpeercert())
  640. finally:
  641. s.close()
  642. def test_non_blocking_connect_ex(self):
  643. # Issue #11326: non-blocking connect_ex() should allow handshake
  644. # to proceed after the socket gets ready.
  645. with support.transient_internet("svn.python.org"):
  646. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  647. cert_reqs=ssl.CERT_REQUIRED,
  648. ca_certs=SVN_PYTHON_ORG_ROOT_CERT,
  649. do_handshake_on_connect=False)
  650. try:
  651. s.setblocking(False)
  652. rc = s.connect_ex(('svn.python.org', 443))
  653. # EWOULDBLOCK under Windows, EINPROGRESS elsewhere
  654. self.assertIn(rc, (0, errno.EINPROGRESS, errno.EWOULDBLOCK))
  655. # Wait for connect to finish
  656. select.select([], [s], [], 5.0)
  657. # Non-blocking handshake
  658. while True:
  659. try:
  660. s.do_handshake()
  661. break
  662. except ssl.SSLWantReadError:
  663. select.select([s], [], [], 5.0)
  664. except ssl.SSLWantWriteError:
  665. select.select([], [s], [], 5.0)
  666. # SSL established
  667. self.assertTrue(s.getpeercert())
  668. finally:
  669. s.close()
  670. def test_timeout_connect_ex(self):
  671. # Issue #12065: on a timeout, connect_ex() should return the original
  672. # errno (mimicking the behaviour of non-SSL sockets).
  673. with support.transient_internet("svn.python.org"):
  674. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  675. cert_reqs=ssl.CERT_REQUIRED,
  676. ca_certs=SVN_PYTHON_ORG_ROOT_CERT,
  677. do_handshake_on_connect=False)
  678. try:
  679. s.settimeout(0.0000001)
  680. rc = s.connect_ex(('svn.python.org', 443))
  681. if rc == 0:
  682. self.skipTest("svn.python.org responded too quickly")
  683. self.assertIn(rc, (errno.EAGAIN, errno.EWOULDBLOCK))
  684. finally:
  685. s.close()
  686. def test_connect_ex_error(self):
  687. with support.transient_internet("svn.python.org"):
  688. s = ssl.wrap_socket(socket.socket(socket.AF_INET),
  689. cert_reqs=ssl.CERT_REQUIRED,
  690. ca_certs=SVN_PYTHON_ORG_ROOT_CERT)
  691. try:
  692. self.assertEqual(errno.ECONNREFUSED,
  693. s.connect_ex(("svn.python.org", 444)))
  694. finally:
  695. s.close()
  696. def test_connect_with_context(self):
  697. with support.transient_internet("svn.python.org"):
  698. # Same as test_connect, but with a separately created context
  699. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  700. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  701. s.connect(("svn.python.org", 443))
  702. try:
  703. self.assertEqual({}, s.getpeercert())
  704. finally:
  705. s.close()
  706. # Same with a server hostname
  707. s = ctx.wrap_socket(socket.socket(socket.AF_INET),
  708. server_hostname="svn.python.org")
  709. if ssl.HAS_SNI:
  710. s.connect(("svn.python.org", 443))
  711. s.close()
  712. else:
  713. self.assertRaises(ValueError, s.connect, ("svn.python.org", 443))
  714. # This should fail because we have no verification certs
  715. ctx.verify_mode = ssl.CERT_REQUIRED
  716. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  717. self.assertRaisesRegex(ssl.SSLError, "certificate verify failed",
  718. s.connect, ("svn.python.org", 443))
  719. s.close()
  720. # This should succeed because we specify the root cert
  721. ctx.load_verify_locations(SVN_PYTHON_ORG_ROOT_CERT)
  722. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  723. s.connect(("svn.python.org", 443))
  724. try:
  725. cert = s.getpeercert()
  726. self.assertTrue(cert)
  727. finally:
  728. s.close()
  729. def test_connect_capath(self):
  730. # Verify server certificates using the `capath` argument
  731. # NOTE: the subject hashing algorithm has been changed between
  732. # OpenSSL 0.9.8n and 1.0.0, as a result the capath directory must
  733. # contain both versions of each certificate (same content, different
  734. # filename) for this test to be portable across OpenSSL releases.
  735. with support.transient_internet("svn.python.org"):
  736. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  737. ctx.verify_mode = ssl.CERT_REQUIRED
  738. ctx.load_verify_locations(capath=CAPATH)
  739. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  740. s.connect(("svn.python.org", 443))
  741. try:
  742. cert = s.getpeercert()
  743. self.assertTrue(cert)
  744. finally:
  745. s.close()
  746. # Same with a bytes `capath` argument
  747. ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  748. ctx.verify_mode = ssl.CERT_REQUIRED
  749. ctx.load_verify_locations(capath=BYTES_CAPATH)
  750. s = ctx.wrap_socket(socket.socket(socket.AF_INET))
  751. s.connect(("svn.python.org", 443))
  752. try:
  753. cert = s.getpeercert()
  754. self.assertTrue(cert)
  755. finally:
  756. s.close()
  757. @unittest.skipIf(os.name == "nt", "Can't use a socket as a file under Windows")
  758. def test_makefile_close(self):
  759. # Issue #5238: creating a file-like object with makefile() shouldn't
  760. # delay closing the underlying "real socket" (here tested with its
  761. # file descriptor, hence skipping the test under Windows).
  762. with support.transient_internet("svn.python.org"):
  763. ss = ssl.wrap_socket(socket.socket(socket.AF_INET))
  764. ss.connect(("svn.python.org", 443))
  765. fd = ss.fileno()
  766. f = ss.makefile()
  767. f.close()
  768. # The fd is still open
  769. os.read(fd, 0)
  770. # Closing the SSL socket should close the fd too
  771. ss.close()
  772. gc.collect()
  773. with self.assertRaises(OSError) as e:
  774. os.read(fd, 0)
  775. self.assertEqual(e.exception.errno, errno.EBADF)
  776. def test_non_blocking_handshake(self):
  777. with support.transient_internet("svn.python.org"):
  778. s = socket.socket(socket.AF_INET)
  779. s.connect(("svn.python.org", 443))
  780. s.setblocking(False)
  781. s = ssl.wrap_socket(s,
  782. cert_reqs=ssl.CERT_NONE,
  783. do_handshake_on_connect=False)
  784. count = 0
  785. while True:
  786. try:
  787. count += 1
  788. s.do_handshake()
  789. break
  790. except ssl.SSLWantReadError:
  791. select.select([s], [], [])
  792. except ssl.SSLWantWriteError:
  793. select.select([], [s], [])
  794. s.close()
  795. if support.verbose:
  796. sys.stdout.write("\nNeeded %d calls to do_handshake() to establish session.\n" % count)
  797. def test_get_server_certificate(self):
  798. def _test_get_server_certificate(host, port, cert=None):
  799. with support.transient_internet(host):
  800. pem = ssl.get_server_certificate((host, port))
  801. if not pem:
  802. self.fail("No server certificate on %s:%s!" % (host, port))
  803. try:
  804. pem = ssl.get_server_certificate((host, port), ca_certs=CERTFILE)
  805. except ssl.SSLError as x:
  806. #should fail
  807. if support.verbose:
  808. sys.stdout.write("%s\n" % x)
  809. else:
  810. self.fail("Got server certificate %s for %s:%s!" % (pem, host, port))
  811. pem = ssl.get_server_certificate((host, port), ca_certs=cert)
  812. if not pem:
  813. self.fail("No server certificate on %s:%s!" % (host, port))
  814. if support.verbose:
  815. sys.stdout.write("\nVerified certificate for %s:%s is\n%s\n" % (host, port ,pem))
  816. _test_get_server_certificate('svn.python.org', 443, SVN_PYTHON_ORG_ROOT_CERT)
  817. if support.IPV6_ENABLED:
  818. _test_get_server_certificate('ipv6.google.com', 443)
  819. def test_ciphers(self):
  820. remote = ("svn.python.org", 443)
  821. with support.transient_internet(remote[0]):
  822. with ssl.wrap_socket(socket.socket(socket.AF_INET),
  823. cert_reqs=ssl.CERT_NONE, ciphers="ALL") as s:
  824. s.connect(remote)
  825. with ssl.wrap_socket(socket.socket(socket.AF_INET),
  826. cert_reqs=ssl.CERT_NONE, ciphers="DEFAULT") as s:
  827. s.connect(remote)
  828. # Error checking can happen at instantiation or when connecting
  829. with self.assertRaisesRegex(ssl.SSLError, "No cipher can be selected"):
  830. with socket.socket(socket.AF_INET) as sock:
  831. s = ssl.wrap_socket(sock,
  832. cert_reqs=ssl.CERT_NONE, ciphers="^$:,;?*'dorothyx")
  833. s.connect(remote)
  834. def test_algorithms(self):
  835. # Issue #8484: all algorithms should be available when verifying a
  836. # certificate.
  837. # SHA256 was added in OpenSSL 0.9.8
  838. if ssl.OPENSSL_VERSION_INFO < (0, 9, 8, 0, 15):
  839. self.skipTest("SHA256 not available on %r" % ssl.OPENSSL_VERSION)
  840. # sha256.tbs-internet.com needs SNI to use the correct certificate
  841. if not ssl.HAS_SNI:
  842. self.skipTest("SNI needed for this test")
  843. # https://sha2.hboeck.de/ was used until 2011-01-08 (no route to host)
  844. remote = ("sha256.tbs-internet.com", 443)
  845. sha256_cert = os.path.join(os.path.dirname(__file__), "sha256.pem")
  846. with support.transient_internet("sha256.tbs-internet.com"):
  847. ctx = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
  848. ctx.verify_mode = ssl.CERT_REQUIRED
  849. ctx.load_verify_locations(sha256_cert)
  850. s = ctx.wrap_socket(socket.socket(socket.AF_INET),
  851. server_hostname="sha256.tbs-internet.com")
  852. try:
  853. s.connect(remote)
  854. if support.verbose:
  855. sys.stdout.write("\nCipher with %r is %r\n" %
  856. (remote, s.cipher()))
  857. sys.stdout.write("Certificate is:\n%s\n" %
  858. pprint.pformat(s.getpeercert()))
  859. finally:
  860. s.close()
  861. try:
  862. import threading
  863. except ImportError:
  864. _have_threads = False
  865. else:
  866. _have_threads = True
  867. from test.ssl_servers import make_https_server
  868. class ThreadedEchoServer(threading.Thread):
  869. class ConnectionHandler(threading.Thread):
  870. """A mildly complicated class, because we want it to work both
  871. with and without the SSL wrapper around the socket connection, so
  872. that we can test the STARTTLS functionality."""
  873. def __init__(self, server, connsock, addr):
  874. self.server = server
  875. self.running = False
  876. self.sock = connsock
  877. self.addr = addr
  878. self.sock.setblocking(1)
  879. self.sslconn = None
  880. threading.Thread.__init__(self)
  881. self.daemon = True
  882. def wrap_conn(self):
  883. try:
  884. self.sslconn = self.server.context.wrap_socket(
  885. self.sock, server_side=True)
  886. self.server.selected_protocols.append(self.sslconn.selected_npn_protocol())
  887. except ssl.SSLError as e:
  888. # XXX Various errors can have happened here, for example
  889. # a mismatching protocol version, an invalid certificate,
  890. # or a low-level bug. This should be made more discriminating.
  891. self.server.conn_errors.append(e)
  892. if self.server.chatty:
  893. handle_error("\n server: bad connection attempt from " + repr(self.addr) + ":\n")
  894. self.running = False
  895. self.server.stop()
  896. self.close()
  897. return False
  898. else:
  899. if self.server.context.verify_mode == ssl.CERT_REQUIRED:
  900. cert = self.sslconn.getpeercert()
  901. if support.verbose and self.server.chatty:
  902. sys.stdout.write(" client cert is " + pprint.pformat(cert) + "\n")
  903. cert_binary = self.sslconn.getpeercert(True)
  904. if support.verbose and self.server.chatty:
  905. sys.stdout.write(" cert binary is " + str(len(cert_binary)) + " bytes\n")
  906. cipher = self.sslconn.cipher()
  907. if support.verbose and self.server.chatty:
  908. sys.stdout.write(" server: connection cipher is now " + str(cipher) + "\n")
  909. sys.stdout.write(" server: selected protocol is now "
  910. + str(self.sslconn.selected_npn_protocol()) + "\n")
  911. return True
  912. def read(self):
  913. if self.sslconn:
  914. return self.sslconn.read()
  915. else:
  916. return self.sock.recv(1024)
  917. def write(self, bytes):
  918. if self.sslconn:
  919. return self.sslconn.write(bytes)
  920. else:
  921. return self.sock.send(bytes)
  922. def close(self):
  923. if self.sslconn:
  924. self.sslconn.close()
  925. else:
  926. self.sock.close()
  927. def run(self):
  928. self.running = True
  929. if not self.server.starttls_server:
  930. if not self.wrap_conn():
  931. return
  932. while self.running:
  933. try:
  934. msg = self.read()
  935. stripped = msg.strip()
  936. if not stripped:
  937. # eof, so quit this handler
  938. self.running = False
  939. self.close()
  940. elif stripped == b'over':
  941. if support.verbose and self.server.connectionchatty:
  942. sys.stdout.write(" server: client closed connection\n")
  943. self.close()
  944. return
  945. elif (self.server.starttls_server and
  946. stripped == b'STARTTLS'):
  947. if support.verbose and self.server.connectionchatty:
  948. sys.stdout.write(" server: read STARTTLS from client, sending OK...\n")
  949. self.write(b"OK\n")
  950. if not self.wrap_conn():
  951. return
  952. elif (self.server.starttls_server and self.sslconn
  953. and stripped == b'ENDTLS'):
  954. if support.verbose and self.server.connectionchatty:
  955. sys.stdout.write(" server: read ENDTLS from client, sending OK...\n")
  956. self.write(b"OK\n")
  957. self.sock = self.sslconn.unwrap()
  958. self.sslconn = None
  959. if support.verbose and self.server.connectionchatty:
  960. sys.stdout.write(" server: connection is now unencrypted...\n")
  961. elif stripped == b'CB tls-unique':
  962. if support.verbose and self.server.connectionchatty:
  963. sys.stdout.write(" server: read CB tls-unique from client, sending our CB data...\n")
  964. data = self.sslconn.get_channel_binding("tls-unique")
  965. self.write(repr(data).encode("us-ascii") + b"\n")
  966. else:
  967. if (support.verbose and
  968. self.server.connectionchatty):
  969. ctype = (self.sslconn and "encrypted") or "unencrypted"
  970. sys.stdout.write(" server: read %r (%s), sending back %r (%s)...\n"
  971. % (msg, ctype, msg.lower(), ctype))
  972. self.write(msg.lower())
  973. except OSError:
  974. if self.server.chatty:
  975. handle_error("Test server failure:\n")
  976. self.close()
  977. self.running = False
  978. # normally, we'd just stop here, but for the test
  979. # harness, we want to stop the server
  980. self.server.stop()
  981. def __init__(self, certificate=None, ssl_version=None,
  982. certreqs=None, cacerts=None,
  983. chatty=True, connectionchatty=False, starttls_server=False,
  984. npn_protocols=None, ciphers=None, context=None):
  985. if context:
  986. self.context = context
  987. else:
  988. self.context = ssl.SSLContext(ssl_version
  989. if ssl_version is not None
  990. else ssl.PROTOCOL_TLSv1)
  991. self.context.verify_mode = (certreqs if certreqs is not None
  992. else ssl.CERT_NONE)
  993. if cacerts:
  994. self.context.load_verify_locations(cacerts)
  995. if certificate:
  996. self.context.load_cert_chain(certificate)
  997. if npn_protocols:
  998. self.context.set_npn_protocols(npn_protocols)
  999. if ciphers:
  1000. self.context.set_ciphers(ciphers)
  1001. self.chatty = chatty
  1002. self.connectionchatty = connectionchatty
  1003. self.starttls_server = starttls_server
  1004. self.sock = socket.socket()
  1005. self.port = support.bind_port(self.sock)
  1006. self.flag = None
  1007. self.active = False
  1008. self.selected_protocols = []
  1009. self.conn_errors = []
  1010. threading.Thread.__init__(self)
  1011. self.daemon = True
  1012. def __enter__(self):
  1013. self.start(threading.Event())
  1014. self.flag.wait()
  1015. return self
  1016. def __exit__(self, *args):
  1017. self.stop()
  1018. self.join()
  1019. def start(self, flag=None):
  1020. self.flag = flag
  1021. threading.Thread.start(self)
  1022. def run(self):
  1023. self.sock.settimeout(0.05)
  1024. self.sock.listen(5)
  1025. self.active = True
  1026. if self.flag:
  1027. # signal an event
  1028. self.flag.set()
  1029. while self.active:
  1030. try:
  1031. newconn, connaddr = self.sock.accept()
  1032. if support.verbose and self.chatty:
  1033. sys.stdout.write(' server: new connection from '
  1034. + repr(connaddr) + '\n')
  1035. handler = self.ConnectionHandler(self, newconn, connaddr)
  1036. handler.start()
  1037. handler.join()
  1038. except socket.timeout:
  1039. pass
  1040. except KeyboardInterrupt:
  1041. self.stop()
  1042. self.sock.close()
  1043. def stop(self):
  1044. self.active = False
  1045. class AsyncoreEchoServer(threading.Thread):
  1046. # this one's based on asyncore.dispatcher

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