# Test the support for SSL and sockets import sys import unittest from test import support import socket import select import time import os import pprint import urllib.parse, urllib.request import traceback import asyncore import weakref from http.server import HTTPServer, SimpleHTTPRequestHandler # Optionally test SSL support, if we have it in the tested platform skip_expected = False try: import ssl except ImportError: skip_expected = True HOST = support.HOST CERTFILE = None SVN_PYTHON_ORG_ROOT_CERT = None def handle_error(prefix): exc_format = ' '.join(traceback.format_exception(*sys.exc_info())) if support.verbose: sys.stdout.write(prefix + exc_format) class BasicTests(unittest.TestCase): def testSSLconnect(self): if not support.is_resource_enabled('network'): return s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_NONE) s.connect(("svn.python.org", 443)) c = s.getpeercert() if c: raise support.TestFailed("Peer cert %s shouldn't be here!") s.close() # this should fail because we have no verification certs s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_REQUIRED) try: s.connect(("svn.python.org", 443)) except ssl.SSLError: pass finally: s.close() def testCrucialConstants(self): ssl.PROTOCOL_SSLv2 ssl.PROTOCOL_SSLv23 ssl.PROTOCOL_SSLv3 ssl.PROTOCOL_TLSv1 ssl.CERT_NONE ssl.CERT_OPTIONAL ssl.CERT_REQUIRED def testRAND(self): v = ssl.RAND_status() if support.verbose: sys.stdout.write("\n RAND_status is %d (%s)\n" % (v, (v and "sufficient randomness") or "insufficient randomness")) try: ssl.RAND_egd(1) except TypeError: pass else: print("didn't raise TypeError") ssl.RAND_add("this is a random string", 75.0) def testParseCert(self): # note that this uses an 'unofficial' function in _ssl.c, # provided solely for this test, to exercise the certificate # parsing code p = ssl._ssl._test_decode_cert(CERTFILE, False) if support.verbose: sys.stdout.write("\n" + pprint.pformat(p) + "\n") def testDERtoPEM(self): pem = open(SVN_PYTHON_ORG_ROOT_CERT, 'r').read() d1 = ssl.PEM_cert_to_DER_cert(pem) p2 = ssl.DER_cert_to_PEM_cert(d1) d2 = ssl.PEM_cert_to_DER_cert(p2) if (d1 != d2): raise support.TestFailed("PEM-to-DER or DER-to-PEM translation failed") def test_openssl_version(self): n = ssl.OPENSSL_VERSION_NUMBER t = ssl.OPENSSL_VERSION_INFO s = ssl.OPENSSL_VERSION self.assertIsInstance(n, int) self.assertIsInstance(t, tuple) self.assertIsInstance(s, str) # Some sanity checks follow # >= 0.9 self.assertGreaterEqual(n, 0x900000) # < 2.0 self.assertLess(n, 0x20000000) major, minor, fix, patch, status = t self.assertGreaterEqual(major, 0) self.assertLess(major, 2) self.assertGreaterEqual(minor, 0) self.assertLess(minor, 256) self.assertGreaterEqual(fix, 0) self.assertLess(fix, 256) self.assertGreaterEqual(patch, 0) self.assertLessEqual(patch, 26) self.assertGreaterEqual(status, 0) self.assertLessEqual(status, 15) # Version string as returned by OpenSSL, the format might change self.assertTrue(s.startswith("OpenSSL {:d}.{:d}.{:d}".format(major, minor, fix)), (s, t)) def test_ciphers(self): if not support.is_resource_enabled('network'): return remote = ("svn.python.org", 443) s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_NONE, ciphers="ALL") s.connect(remote) s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_NONE, ciphers="DEFAULT") s.connect(remote) # Error checking occurs when connecting, because the SSL context # isn't created before. s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_NONE, ciphers="^$:,;?*'dorothyx") with self.assertRaisesRegexp(ssl.SSLError, "No cipher can be selected"): s.connect(remote) @support.cpython_only def test_refcycle(self): # Issue #7943: an SSL object doesn't create reference cycles with # itself. s = socket.socket(socket.AF_INET) ss = ssl.wrap_socket(s) wr = weakref.ref(ss) del ss self.assertEqual(wr(), None) class NetworkedTests(unittest.TestCase): def testConnect(self): s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_NONE) s.connect(("svn.python.org", 443)) c = s.getpeercert() if c: raise support.TestFailed("Peer cert %s shouldn't be here!") s.close() # this should fail because we have no verification certs s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_REQUIRED) try: s.connect(("svn.python.org", 443)) except ssl.SSLError: pass finally: s.close() # this should succeed because we specify the root cert s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_REQUIRED, ca_certs=SVN_PYTHON_ORG_ROOT_CERT) try: s.connect(("svn.python.org", 443)) except ssl.SSLError as x: raise support.TestFailed("Unexpected exception %s" % x) finally: s.close() def testNonBlockingHandshake(self): s = socket.socket(socket.AF_INET) s.connect(("svn.python.org", 443)) s.setblocking(False) s = ssl.wrap_socket(s, cert_reqs=ssl.CERT_NONE, do_handshake_on_connect=False) count = 0 while True: try: count += 1 s.do_handshake() break except ssl.SSLError as err: if err.args[0] == ssl.SSL_ERROR_WANT_READ: select.select([s], [], []) elif err.args[0] == ssl.SSL_ERROR_WANT_WRITE: select.select([], [s], []) else: raise s.close() if support.verbose: sys.stdout.write("\nNeeded %d calls to do_handshake() to establish session.\n" % count) def testFetchServerCert(self): pem = ssl.get_server_certificate(("svn.python.org", 443)) if not pem: raise support.TestFailed("No server certificate on svn.python.org:443!") return try: pem = ssl.get_server_certificate(("svn.python.org", 443), ca_certs=CERTFILE) except ssl.SSLError as x: #should fail if support.verbose: sys.stdout.write("%s\n" % x) else: raise support.TestFailed("Got server certificate %s for svn.python.org!" % pem) pem = ssl.get_server_certificate(("svn.python.org", 443), ca_certs=SVN_PYTHON_ORG_ROOT_CERT) if not pem: raise support.TestFailed("No server certificate on svn.python.org:443!") if support.verbose: sys.stdout.write("\nVerified certificate for svn.python.org:443 is\n%s\n" % pem) def test_algorithms(self): # Issue #8484: all algorithms should be available when verifying a # certificate. # SHA256 was added in OpenSSL 0.9.8 if ssl.OPENSSL_VERSION_INFO < (0, 9, 8, 0, 15): self.skipTest("SHA256 not available on %r" % ssl.OPENSSL_VERSION) # NOTE: https://sha256.tbs-internet.com is another possible test host remote = ("sha2.hboeck.de", 443) sha256_cert = os.path.join(os.path.dirname(__file__), "sha256.pem") s = ssl.wrap_socket(socket.socket(socket.AF_INET), cert_reqs=ssl.CERT_REQUIRED, ca_certs=sha256_cert,) with support.transient_internet(): try: s.connect(remote) if support.verbose: sys.stdout.write("\nCipher with %r is %r\n" % (remote, s.cipher())) sys.stdout.write("Certificate is:\n%s\n" % pprint.pformat(s.getpeercert())) finally: s.close() try: import threading except ImportError: _have_threads = False else: _have_threads = True class ThreadedEchoServer(threading.Thread): class ConnectionHandler(threading.Thread): """A mildly complicated class, because we want it to work both with and without the SSL wrapper around the socket connection, so that we can test the STARTTLS functionality.""" def __init__(self, server, connsock, addr): self.server = server self.running = False self.sock = connsock self.addr = addr self.sock.setblocking(1) self.sslconn = None threading.Thread.__init__(self) self.daemon = True def wrap_conn (self): try: self.sslconn = ssl.wrap_socket(self.sock, server_side=True, certfile=self.server.certificate, ssl_version=self.server.protocol, ca_certs=self.server.cacerts, cert_reqs=self.server.certreqs, ciphers=self.server.ciphers) except: if self.server.chatty: handle_error("\n server: bad connection attempt from " + repr(self.addr) + ":\n") if not self.server.expect_bad_connects: # here, we want to stop the server, because this shouldn't # happen in the context of our test case self.running = False # normally, we'd just stop here, but for the test # harness, we want to stop the server self.server.stop() self.close() return False else: if self.server.certreqs == ssl.CERT_REQUIRED: cert = self.sslconn.getpeercert() if support.verbose and self.server.chatty: sys.stdout.write(" client cert is " + pprint.pformat(cert) + "\n") cert_binary = self.sslconn.getpeercert(True) if support.verbose and self.server.chatty: sys.stdout.write(" cert binary is " + str(len(cert_binary)) + " bytes\n") cipher = self.sslconn.cipher() if support.verbose and self.server.chatty: sys.stdout.write(" server: connection cipher is now " + str(cipher) + "\n") return True def read(self): if self.sslconn: return self.sslconn.read() else: return self.sock.recv(1024) def write(self, bytes): if self.sslconn: return self.sslconn.write(bytes) else: return self.sock.send(bytes) def close(self): if self.sslconn: self.sslconn.close() else: self.sock.close() def run (self): self.running = True if not self.server.starttls_server: if not self.wrap_conn(): return while self.running: try: msg = self.read() amsg = (msg and str(msg, 'ASCII', 'strict')) or '' if not msg: # eof, so quit this handler self.running = False self.close() elif amsg.strip() == 'over': if support.verbose and self.server.connectionchatty: sys.stdout.write(" server: client closed connection\n") self.close() return elif (self.server.starttls_server and amsg.strip() == 'STARTTLS'): if support.verbose and self.server.connectionchatty: sys.stdout.write(" server: read STARTTLS from client, sending OK...\n") self.write("OK\n".encode("ASCII", "strict")) if not self.wrap_conn(): return elif (self.server.starttls_server and self.sslconn and amsg.strip() == 'ENDTLS'): if support.verbose and self.server.connectionchatty: sys.stdout.write(" server: read ENDTLS from client, sending OK...\n") self.write("OK\n".encode("ASCII", "strict")) self.sock = self.sslconn.unwrap() self.sslconn = None if support.verbose and self.server.connectionchatty: sys.stdout.write(" server: connection is now unencrypted...\n") else: if (support.verbose and self.server.connectionchatty): ctype = (self.sslconn and "encrypted") or "unencrypted" sys.stdout.write(" server: read %s (%s), sending back %s (%s)...\n" % (repr(msg), ctype, repr(msg.lower()), ctype)) self.write(amsg.lower().encode('ASCII', 'strict')) except socket.error: if self.server.chatty: handle_error("Test server failure:\n") self.close() self.running = False # normally, we'd just stop here, but for the test # harness, we want to stop the server self.server.stop() except: handle_error('') def __init__(self, certificate, ssl_version=None, certreqs=None, cacerts=None, expect_bad_connects=False, chatty=True, connectionchatty=False, starttls_server=False, ciphers=None): if ssl_version is None: ssl_version = ssl.PROTOCOL_TLSv1 if certreqs is None: certreqs = ssl.CERT_NONE self.certificate = certificate self.protocol = ssl_version self.certreqs = certreqs self.cacerts = cacerts self.ciphers = ciphers self.expect_bad_connects = expect_bad_connects self.chatty = chatty self.connectionchatty = connectionchatty self.starttls_server = starttls_server self.sock = socket.socket() self.port = support.bind_port(self.sock) self.flag = None self.active = False threading.Thread.__init__(self) self.daemon = True def start (self, flag=None): self.flag = flag threading.Thread.start(self) def run (self): self.sock.settimeout(0.5) self.sock.listen(5) self.active = True if self.flag: # signal an event self.flag.set() while self.active: try: newconn, connaddr = self.sock.accept() if support.verbose and self.chatty: sys.stdout.write(' server: new connection from ' + repr(connaddr) + '\n') handler = self.ConnectionHandler(self, newconn, connaddr) handler.start() except socket.timeout: pass except KeyboardInterrupt: self.stop() except: if self.chatty: handle_error("Test server failure:\n") self.sock.close() def stop (self): self.active = False class OurHTTPSServer(threading.Thread): # This one's based on HTTPServer, which is based on SocketServer class HTTPSServer(HTTPServer): def __init__(self, server_address, RequestHandlerClass, certfile): HTTPServer.__init__(self, server_address, RequestHandlerClass) # we assume the certfile contains both private key and certificate self.certfile = certfile self.active = False self.active_lock = threading.Lock() self.allow_reuse_address = True def __str__(self): return ('<%s %s:%s>' % (self.__class__.__name__, self.server_name, self.server_port)) def get_request (self): # override this to wrap socket with SSL sock, addr = self.socket.accept() sslconn = ssl.wrap_socket(sock, server_side=True, certfile=self.certfile) return sslconn, addr # The methods overridden below this are mainly so that we # can run it in a thread and be able to stop it from another # You probably wouldn't need them in other uses. def server_activate(self): # We want to run this in a thread for testing purposes, # so we override this to set timeout, so that we get # a chance to stop the server self.socket.settimeout(0.5) HTTPServer.server_activate(self) def serve_forever(self): # We want this to run in a thread, so we use a slightly # modified version of "forever". self.active = True while 1: try: # We need to lock while handling the request. # Another thread can close the socket after self.active # has been checked and before the request is handled. # This causes an exception when using the closed socket. with self.active_lock: if not self.active: break self.handle_request() except socket.timeout: pass except KeyboardInterrupt: self.server_close() return except: sys.stdout.write(''.join(traceback.format_exception(*sys.exc_info()))) break time.sleep(0.1) def server_close(self): # Again, we want this to run in a thread, so we need to override # close to clear the "active" flag, so that serve_forever() will # terminate. with self.active_lock: HTTPServer.server_close(self) self.active = False class RootedHTTPRequestHandler(SimpleHTTPRequestHandler): # need to override translate_path to get a known root, # instead of using os.curdir, since the test could be # run from anywhere server_version = "TestHTTPS/1.0" root = None def translate_path(self, path): """Translate a /-separated PATH to the local filename syntax. Components that mean special things to the local file system (e.g. drive or directory names) are ignored. (XXX They should probably be diagnosed.) """ # abandon query parameters path = urllib.parse.urlparse(path)[2] path = os.path.normpath(urllib.parse.unquote(path)) words = path.split('/') words = filter(None, words) path = self.root for word in words: drive, word = os.path.splitdrive(word) head, word = os.path.split(word) if word in self.root: continue path = os.path.join(path, word) return path def log_message(self, format, *args): # we override this to suppress logging unless "verbose" if support.verbose: sys.stdout.write(" server (%s:%d %s):\n [%s] %s\n" % (self.server.server_address, self.server.server_port, self.request.cipher(), self.log_date_time_string(), format%args)) def __init__(self, certfile): self.flag = None self.active = False self.RootedHTTPRequestHandler.root = os.path.split(CERTFILE)[0] self.port = support.find_unused_port() self.server = self.HTTPSServer( (HOST, self.port), self.RootedHTTPRequestHandler, certfile) threading.Thread.__init__(self) self.daemon = True def __str__(self): return "<%s %s>" % (self.__class__.__name__, self.server) def start (self, flag=None): self.flag = flag threading.Thread.start(self) def run (self): self.active = True if self.flag: self.flag.set() self.server.serve_forever() self.active = False def stop (self): self.active = False self.server.server_close() class AsyncoreEchoServer(threading.Thread): # this one's based on asyncore.dispatcher class EchoServer (asyncore.dispatcher): class ConnectionHandler (asyncore.dispatcher_with_send): def __init__(self, conn, certfile): self.socket = ssl.wrap_socket(conn, server_side=True, certfile=certfile, do_handshake_on_connect=False) asyncore.dispatcher_with_send.__init__(self, self.socket) # now we have to do the handshake # we'll just do it the easy way, and block the connection # till it's finished. If we were doing it right, we'd # do this in multiple calls to handle_read... self.do_handshake(block=True) def readable(self): if isinstance(self.socket, ssl.SSLSocket): while self.socket.pending() > 0: self.handle_read_event() return True def handle_read(self): data = self.recv(1024) if support.verbose: sys.stdout.write(" server: read %s from client\n" % repr(data)) if not data: self.close() else: self.send(str(data, 'ASCII', 'strict').lower().encode('ASCII', 'strict')) def handle_close(self): self.close() if support.verbose: sys.stdout.write(" server: closed connection %s\n" % self.socket) def handle_error(self): raise def __init__(self, port, certfile): self.port = port self.certfile = certfile asyncore.dispatcher.__init__(self) self.create_socket(socket.AF_INET, socket.SOCK_STREAM) self.bind(('', port)) self.listen(5) def handle_accept(self): sock_obj, addr = self.accept() if support.verbose: sys.stdout.write(" server: new connection from %s:%s\n" %addr) self.ConnectionHandler(sock_obj, self.certfile) def handle_error(self): raise def __init__(self, certfile): self.flag = None self.active = False self.port = support.find_unused_port() self.server = self.EchoServer(self.port, certfile) threading.Thread.__init__(self) self.daemon = True def __str__(self): return "<%s %s>" % (self.__class__.__name__, self.server) def start (self, flag=None): self.flag = flag threading.Thread.start(self) def run (self): self.active = True if self.flag: self.flag.set() while self.active: try: asyncore.loop(1) except: pass def stop (self): self.active = False self.server.close() def badCertTest (certfile): server = ThreadedEchoServer(CERTFILE, certreqs=ssl.CERT_REQUIRED, cacerts=CERTFILE, chatty=False, connectionchatty=False) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect try: try: s = ssl.wrap_socket(socket.socket(), certfile=certfile, ssl_version=ssl.PROTOCOL_TLSv1) s.connect((HOST, server.port)) except ssl.SSLError as x: if support.verbose: sys.stdout.write("\nSSLError is %s\n" % x) except socket.error as x: if support.verbose: sys.stdout.write("\nsocket.error is %s\n" % x) else: raise support.TestFailed( "Use of invalid cert should have failed!") finally: server.stop() server.join() def serverParamsTest (certfile, protocol, certreqs, cacertsfile, client_certfile, client_protocol=None, indata="FOO\n", ciphers=None, chatty=False, connectionchatty=False): server = ThreadedEchoServer(certfile, certreqs=certreqs, ssl_version=protocol, cacerts=cacertsfile, ciphers=ciphers, chatty=chatty, connectionchatty=False) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect if client_protocol is None: client_protocol = protocol try: s = ssl.wrap_socket(socket.socket(), server_side=False, certfile=client_certfile, ca_certs=cacertsfile, cert_reqs=certreqs, ciphers=ciphers, ssl_version=client_protocol) s.connect((HOST, server.port)) except ssl.SSLError as x: raise support.TestFailed("Unexpected SSL error: " + str(x)) except Exception as x: raise support.TestFailed("Unexpected exception: " + str(x)) else: bindata = indata.encode('ASCII', 'strict') for arg in [bindata, bytearray(bindata), memoryview(bindata)]: if connectionchatty: if support.verbose: sys.stdout.write( " client: sending %s...\n" % (repr(indata))) s.write(arg) outdata = s.read() if connectionchatty: if support.verbose: sys.stdout.write(" client: read %s\n" % repr(outdata)) outdata = str(outdata, 'ASCII', 'strict') if outdata != indata.lower(): raise support.TestFailed( "bad data <<%s>> (%d) received; expected <<%s>> (%d)\n" % (repr(outdata[:min(len(outdata),20)]), len(outdata), repr(indata[:min(len(indata),20)].lower()), len(indata))) s.write("over\n".encode("ASCII", "strict")) if connectionchatty: if support.verbose: sys.stdout.write(" client: closing connection.\n") s.close() finally: server.stop() server.join() def tryProtocolCombo (server_protocol, client_protocol, expectedToWork, certsreqs=None): if certsreqs is None: certsreqs = ssl.CERT_NONE if certsreqs == ssl.CERT_NONE: certtype = "CERT_NONE" elif certsreqs == ssl.CERT_OPTIONAL: certtype = "CERT_OPTIONAL" elif certsreqs == ssl.CERT_REQUIRED: certtype = "CERT_REQUIRED" if support.verbose: formatstr = (expectedToWork and " %s->%s %s\n") or " {%s->%s} %s\n" sys.stdout.write(formatstr % (ssl.get_protocol_name(client_protocol), ssl.get_protocol_name(server_protocol), certtype)) try: # NOTE: we must enable "ALL" ciphers, otherwise an SSLv23 client # will send an SSLv3 hello (rather than SSLv2) starting from # OpenSSL 1.0.0 (see issue #8322). serverParamsTest(CERTFILE, server_protocol, certsreqs, CERTFILE, CERTFILE, client_protocol, ciphers="ALL", chatty=False, connectionchatty=False) except support.TestFailed: if expectedToWork: raise else: if not expectedToWork: raise support.TestFailed( "Client protocol %s succeeded with server protocol %s!" % (ssl.get_protocol_name(client_protocol), ssl.get_protocol_name(server_protocol))) class ThreadedTests(unittest.TestCase): def testEcho (self): if support.verbose: sys.stdout.write("\n") serverParamsTest(CERTFILE, ssl.PROTOCOL_TLSv1, ssl.CERT_NONE, CERTFILE, CERTFILE, ssl.PROTOCOL_TLSv1, chatty=True, connectionchatty=True) def testReadCert(self): if support.verbose: sys.stdout.write("\n") s2 = socket.socket() server = ThreadedEchoServer(CERTFILE, certreqs=ssl.CERT_NONE, ssl_version=ssl.PROTOCOL_SSLv23, cacerts=CERTFILE, chatty=False) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect try: try: s = ssl.wrap_socket(socket.socket(), certfile=CERTFILE, ca_certs=CERTFILE, cert_reqs=ssl.CERT_REQUIRED, ssl_version=ssl.PROTOCOL_SSLv23) s.connect((HOST, server.port)) except ssl.SSLError as x: raise support.TestFailed( "Unexpected SSL error: " + str(x)) except Exception as x: raise support.TestFailed( "Unexpected exception: " + str(x)) else: if not s: raise support.TestFailed( "Can't SSL-handshake with test server") cert = s.getpeercert() if not cert: raise support.TestFailed( "Can't get peer certificate.") cipher = s.cipher() if support.verbose: sys.stdout.write(pprint.pformat(cert) + '\n') sys.stdout.write("Connection cipher is " + str(cipher) + '.\n') if 'subject' not in cert: raise support.TestFailed( "No subject field in certificate: %s." % pprint.pformat(cert)) if ((('organizationName', 'Python Software Foundation'),) not in cert['subject']): raise support.TestFailed( "Missing or invalid 'organizationName' field in certificate subject; " "should be 'Python Software Foundation'.") s.close() finally: server.stop() server.join() def testNULLcert(self): badCertTest(os.path.join(os.path.dirname(__file__) or os.curdir, "nullcert.pem")) def testMalformedCert(self): badCertTest(os.path.join(os.path.dirname(__file__) or os.curdir, "badcert.pem")) def testWrongCert(self): badCertTest(os.path.join(os.path.dirname(__file__) or os.curdir, "wrongcert.pem")) def testMalformedKey(self): badCertTest(os.path.join(os.path.dirname(__file__) or os.curdir, "badkey.pem")) def testRudeShutdown(self): listener_ready = threading.Event() listener_gone = threading.Event() port = support.find_unused_port() # `listener` runs in a thread. It opens a socket listening on # PORT, and sits in an accept() until the main thread connects. # Then it rudely closes the socket, and sets Event `listener_gone` # to let the main thread know the socket is gone. def listener(): s = socket.socket() s.bind((HOST, port)) s.listen(5) listener_ready.set() s.accept() s = None # reclaim the socket object, which also closes it listener_gone.set() def connector(): listener_ready.wait() s = socket.socket() s.connect((HOST, port)) listener_gone.wait() try: ssl_sock = ssl.wrap_socket(s) except IOError: pass else: raise support.TestFailed( 'connecting to closed SSL socket should have failed') t = threading.Thread(target=listener) t.start() connector() t.join() def testProtocolSSL2(self): if support.verbose: sys.stdout.write("\n") tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True) tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv2, True, ssl.CERT_REQUIRED) tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv23, True) tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_SSLv3, False) tryProtocolCombo(ssl.PROTOCOL_SSLv2, ssl.PROTOCOL_TLSv1, False) def testProtocolSSL23(self): if support.verbose: sys.stdout.write("\n") try: tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv2, True) except support.TestFailed as x: # this fails on some older versions of OpenSSL (0.9.7l, for instance) if support.verbose: sys.stdout.write( " SSL2 client to SSL23 server test unexpectedly failed:\n %s\n" % str(x)) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_SSLv23, True, ssl.CERT_REQUIRED) tryProtocolCombo(ssl.PROTOCOL_SSLv23, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED) def testProtocolSSL3(self): if support.verbose: sys.stdout.write("\n") tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True) tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv3, True, ssl.CERT_REQUIRED) tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv2, False) tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_SSLv23, False) tryProtocolCombo(ssl.PROTOCOL_SSLv3, ssl.PROTOCOL_TLSv1, False) def testProtocolTLS1(self): if support.verbose: sys.stdout.write("\n") tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True) tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_OPTIONAL) tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_TLSv1, True, ssl.CERT_REQUIRED) tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv2, False) tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv3, False) tryProtocolCombo(ssl.PROTOCOL_TLSv1, ssl.PROTOCOL_SSLv23, False) def testSTARTTLS (self): msgs = ("msg 1", "MSG 2", "STARTTLS", "MSG 3", "msg 4", "ENDTLS", "msg 5", "msg 6") server = ThreadedEchoServer(CERTFILE, ssl_version=ssl.PROTOCOL_TLSv1, starttls_server=True, chatty=True, connectionchatty=True) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect wrapped = False try: try: s = socket.socket() s.setblocking(1) s.connect((HOST, server.port)) except Exception as x: raise support.TestFailed("Unexpected exception: " + str(x)) else: if support.verbose: sys.stdout.write("\n") for indata in msgs: msg = indata.encode('ASCII', 'replace') if support.verbose: sys.stdout.write( " client: sending %s...\n" % repr(msg)) if wrapped: conn.write(msg) outdata = conn.read() else: s.send(msg) outdata = s.recv(1024) if (indata == "STARTTLS" and str(outdata, 'ASCII', 'replace').strip().lower().startswith("ok")): if support.verbose: msg = str(outdata, 'ASCII', 'replace') sys.stdout.write( " client: read %s from server, starting TLS...\n" % repr(msg)) conn = ssl.wrap_socket(s, ssl_version=ssl.PROTOCOL_TLSv1) wrapped = True elif (indata == "ENDTLS" and str(outdata, 'ASCII', 'replace').strip().lower().startswith("ok")): if support.verbose: msg = str(outdata, 'ASCII', 'replace') sys.stdout.write( " client: read %s from server, ending TLS...\n" % repr(msg)) s = conn.unwrap() wrapped = False else: if support.verbose: msg = str(outdata, 'ASCII', 'replace') sys.stdout.write( " client: read %s from server\n" % repr(msg)) if support.verbose: sys.stdout.write(" client: closing connection.\n") if wrapped: conn.write("over\n".encode("ASCII", "strict")) else: s.send("over\n".encode("ASCII", "strict")) if wrapped: conn.close() else: s.close() finally: server.stop() server.join() def testSocketServer(self): server = OurHTTPSServer(CERTFILE) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect try: if support.verbose: sys.stdout.write('\n') d1 = open(CERTFILE, 'rb').read() d2 = '' # now fetch the same data from the HTTPS server url = 'https://%s:%d/%s' % ( HOST, server.port, os.path.split(CERTFILE)[1]) f = urllib.request.urlopen(url) dlen = f.info().get("content-length") if dlen and (int(dlen) > 0): d2 = f.read(int(dlen)) if support.verbose: sys.stdout.write( " client: read %d bytes from remote server '%s'\n" % (len(d2), server)) f.close() except: msg = ''.join(traceback.format_exception(*sys.exc_info())) if support.verbose: sys.stdout.write('\n' + msg) raise support.TestFailed(msg) else: if not (d1 == d2): print("d1 is", len(d1), repr(d1)) print("d2 is", len(d2), repr(d2)) raise support.TestFailed( "Couldn't fetch data from HTTPS server") finally: if support.verbose: sys.stdout.write('stopping server\n') server.stop() if support.verbose: sys.stdout.write('joining thread\n') server.join() def testAsyncoreServer(self): if support.verbose: sys.stdout.write("\n") indata="FOO\n" server = AsyncoreEchoServer(CERTFILE) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect try: s = ssl.wrap_socket(socket.socket()) s.connect((HOST, server.port)) except ssl.SSLError as x: raise support.TestFailed("Unexpected SSL error: " + str(x)) except Exception as x: raise support.TestFailed("Unexpected exception: " + str(x)) else: if support.verbose: sys.stdout.write( " client: sending %s...\n" % (repr(indata))) s.sendall(indata.encode('ASCII', 'strict')) outdata = s.recv() if support.verbose: sys.stdout.write(" client: read %s\n" % repr(outdata)) outdata = str(outdata, 'ASCII', 'strict') if outdata != indata.lower(): raise support.TestFailed( "bad data <<%s>> (%d) received; expected <<%s>> (%d)\n" % (repr(outdata[:min(len(outdata),20)]), len(outdata), repr(indata[:min(len(indata),20)].lower()), len(indata))) s.write("over\n".encode("ASCII", "strict")) if support.verbose: sys.stdout.write(" client: closing connection.\n") s.close() finally: server.stop() server.join() def testAllRecvAndSendMethods(self): if support.verbose: sys.stdout.write("\n") server = ThreadedEchoServer(CERTFILE, certreqs=ssl.CERT_NONE, ssl_version=ssl.PROTOCOL_TLSv1, cacerts=CERTFILE, chatty=True, connectionchatty=False) flag = threading.Event() server.start(flag) # wait for it to start flag.wait() # try to connect try: s = ssl.wrap_socket(socket.socket(), server_side=False, certfile=CERTFILE, ca_certs=CERTFILE, cert_reqs=ssl.CERT_NONE, ssl_version=ssl.PROTOCOL_TLSv1) s.connect((HOST, server.port)) except ssl.SSLError as x: self.fail("Unexpected SSL error: " + str(x)) except Exception as x: self.fail("Unexpected exception: " + str(x)) else: # helper methods for standardising recv* method signatures def _recv_into(): b = bytearray(b"\0"*100) count = s.recv_into(b) return b[:count] def _recvfrom_into(): b = bytearray(b"\0"*100) count, addr = s.recvfrom_into(b) return b[:count] # (name, method, whether to expect success, *args) send_methods = [ ('send', s.send, True, []), ('sendto', s.sendto, False, ["some.address"]), ('sendall', s.sendall, True, []), ] recv_methods = [ ('recv', s.recv, True, []), ('recvfrom', s.recvfrom, False, ["some.address"]), ('recv_into', _recv_into, True, []), ('recvfrom_into', _recvfrom_into, False, []), ] data_prefix = "PREFIX_" for meth_name, send_meth, expect_success, args in send_methods: indata = data_prefix + meth_name try: send_meth(indata.encode('ASCII', 'strict'), *args) outdata = s.read() outdata = str(outdata, 'ASCII', 'strict') if outdata != indata.lower(): self.fail( "While sending with <<{name:s}>> bad data " "<<{outdata:s}>> ({nout:d}) received; " "expected <<{indata:s}>> ({nin:d})\n".format( name=meth_name, outdata=repr(outdata[:20]), nout=len(outdata), indata=repr(indata[:20]), nin=len(indata) ) ) except ValueError as e: if expect_success: self.fail( "Failed to send with method <<{name:s}>>; " "expected to succeed.\n".format(name=meth_name) ) if not str(e).startswith(meth_name): self.fail( "Method <<{name:s}>> failed with unexpected " "exception message: {exp:s}\n".format( name=meth_name, exp=e ) ) for meth_name, recv_meth, expect_success, args in recv_methods: indata = data_prefix + meth_name try: s.send(indata.encode('ASCII', 'strict')) outdata = recv_meth(*args) outdata = str(outdata, 'ASCII', 'strict') if outdata != indata.lower(): self.fail( "While receiving with <<{name:s}>> bad data " "<<{outdata:s}>> ({nout:d}) received; " "expected <<{indata:s}>> ({nin:d})\n".format( name=meth_name, outdata=repr(outdata[:20]), nout=len(outdata), indata=repr(indata[:20]), nin=len(indata) ) ) except ValueError as e: if expect_success: self.fail( "Failed to receive with method <<{name:s}>>; " "expected to succeed.\n".format(name=meth_name) ) if not str(e).startswith(meth_name): self.fail( "Method <<{name:s}>> failed with unexpected " "exception message: {exp:s}\n".format( name=meth_name, exp=e ) ) # consume data s.read() s.write("over\n".encode("ASCII", "strict")) s.close() finally: server.stop() server.join() def test_main(verbose=False): if skip_expected: raise unittest.SkipTest("No SSL support") global CERTFILE, SVN_PYTHON_ORG_ROOT_CERT CERTFILE = os.path.join(os.path.dirname(__file__) or os.curdir, "keycert.pem") SVN_PYTHON_ORG_ROOT_CERT = os.path.join( os.path.dirname(__file__) or os.curdir, "https_svn_python_org_root.pem") if (not os.path.exists(CERTFILE) or not os.path.exists(SVN_PYTHON_ORG_ROOT_CERT)): raise support.TestFailed("Can't read certificate files!") tests = [BasicTests] if support.is_resource_enabled('network'): tests.append(NetworkedTests) if _have_threads: thread_info = support.threading_setup() if thread_info and support.is_resource_enabled('network'): tests.append(ThreadedTests) support.run_unittest(*tests) if _have_threads: support.threading_cleanup(*thread_info) if __name__ == "__main__": test_main()