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#!/usr/bin/python # -*- coding: utf-8 -*- # pylint:disable=broad-except import gevent from gevent import monkey import os import re import gevent.testing as greentest import unittest import socket from time import time import traceback import gevent.socket as gevent_socket from gevent.testing.util import log from gevent.testing import six from gevent.testing.six import xrange resolver = gevent.get_hub().resolver log('Resolver: %s', resolver) if getattr(resolver, 'pool', None) is not None: resolver.pool.size = 1 from gevent.testing.sysinfo import RESOLVER_NOT_SYSTEM from gevent.testing.sysinfo import RESOLVER_DNSPYTHON from gevent.testing.sysinfo import PY2 import gevent.testing.timing assert gevent_socket.gaierror is socket.gaierror assert gevent_socket.error is socket.error DEBUG = os.getenv('GEVENT_DEBUG', '') == 'trace' def _run(function, *args): try: result = function(*args) assert not isinstance(result, BaseException), repr(result) return result except Exception as ex: if DEBUG: traceback.print_exc() return ex def format_call(function, args): args = repr(args) if args.endswith(',)'): args = args[:-2] + ')' try: module = function.__module__.replace('gevent._socketcommon', 'gevent') name = function.__name__ return '%s:%s%s' % (module, name, args) except AttributeError: return function + args def log_fresult(result, seconds): if isinstance(result, Exception): msg = ' -=> raised %r' % (result, ) else: msg = ' -=> returned %r' % (result, ) time_ms = ' %.2fms' % (seconds * 1000.0, ) space = 80 - len(msg) - len(time_ms) if space > 0: space = ' ' * space else: space = '' log(msg + space + time_ms) def run(function, *args): if DEBUG: log(format_call(function, args)) delta = time() result = _run(function, *args) delta = time() - delta if DEBUG: log_fresult(result, delta) return result, delta def log_call(result, runtime, function, *args): log(format_call(function, args)) log_fresult(result, runtime) def compare_relaxed(a, b): """ >>> compare_relaxed('2a00:1450:400f:801::1010', '2a00:1450:400f:800::1011') True >>> compare_relaxed('2a00:1450:400f:801::1010', '2aXX:1450:400f:900::1011') False >>> compare_relaxed('2a00:1450:4016:800::1013', '2a00:1450:4008:c01::93') True >>> compare_relaxed('2001:470::e852:4a38:9d7f:0', '2001:470:6d00:1c:1::d00') True >>> compare_relaxed('2001:470:4147:4943:6161:6161:2e74:6573', '2001:470::') True >>> compare_relaxed('2607:f8b0:6708:24af:1fd:700:60d4:4af', '2607:f8b0:2d00::f000:0') True >>> compare_relaxed('a.google.com', 'b.google.com') True >>> compare_relaxed('a.google.com', 'a.gevent.org') False """ # IPv6 address from different requests might be different a_segments = a.count(':') b_segments = b.count(':') if a_segments and b_segments: if a_segments == b_segments and a_segments in (4, 5, 6, 7): return True if a.rstrip(':').startswith(b.rstrip(':')) or b.rstrip(':').startswith(a.rstrip(':')): return True if a_segments >= 2 and b_segments >= 2 and a.split(':')[:2] == b.split(':')[:2]: return True return a.split('.', 1)[-1] == b.split('.', 1)[-1] def contains_5tuples(lst): for item in lst: if not (isinstance(item, tuple) and len(item) == 5): return False return True def relaxed_is_equal(a, b): """ >>> relaxed_is_equal([(10, 1, 6, '', ('2a00:1450:400f:801::1010', 80, 0, 0))], [(10, 1, 6, '', ('2a00:1450:400f:800::1011', 80, 0, 0))]) True >>> relaxed_is_equal([1, '2'], (1, '2')) False >>> relaxed_is_equal([1, '2'], [1, '2']) True >>> relaxed_is_equal(('wi-in-x93.1e100.net', 'http'), ('we-in-x68.1e100.net', 'http')) True """ if type(a) is not type(b): return False if a == b: return True if isinstance(a, six.string_types): return compare_relaxed(a, b) try: if len(a) != len(b): return False except TypeError: return False if contains_5tuples(a) and contains_5tuples(b): # getaddrinfo results a = sorted(a) b = sorted(b) return all(relaxed_is_equal(x, y) for (x, y) in zip(a, b)) def add(klass, hostname, name=None, skip=None, skip_reason=None): call = callable(hostname) def _setattr(k, n, func): if skip: func = greentest.skipIf(skip, skip_reason,)(func) if not hasattr(k, n): setattr(k, n, func) if name is None: if call: name = hostname.__name__ else: name = re.sub(r'[^\w]+', '_', repr(hostname)) assert name, repr(hostname) def test1(self): x = hostname() if call else hostname self._test('getaddrinfo', x, 'http') test1.__name__ = 'test_%s_getaddrinfo' % name _setattr(klass, test1.__name__, test1) def test2(self): x = hostname() if call else hostname ipaddr = self._test('gethostbyname', x) if not isinstance(ipaddr, Exception): self._test('gethostbyaddr', ipaddr) test2.__name__ = 'test_%s_gethostbyname' % name _setattr(klass, test2.__name__, test2) def test3(self): x = hostname() if call else hostname self._test('gethostbyname_ex', x) test3.__name__ = 'test_%s_gethostbyname_ex' % name _setattr(klass, test3.__name__, test3) def test4(self): x = hostname() if call else hostname self._test('gethostbyaddr', x) test4.__name__ = 'test_%s_gethostbyaddr' % name _setattr(klass, test4.__name__, test4) def test5(self): x = hostname() if call else hostname self._test('getnameinfo', (x, 80), 0) test5.__name__ = 'test_%s_getnameinfo' % name _setattr(klass, test5.__name__, test5) class TestCase(greentest.TestCase): __timeout__ = 30 switch_expected = None verbose_dns = False def should_log_results(self, result1, result2): if not self.verbose_dns: return False if isinstance(result1, BaseException) and isinstance(result2, BaseException): return type(result1) is not type(result2) return repr(result1) != repr(result2) def _test(self, func, *args): gevent_func = getattr(gevent_socket, func) real_func = monkey.get_original('socket', func) real_result, time_real = run(real_func, *args) gevent_result, time_gevent = run(gevent_func, *args) if not DEBUG and self.should_log_results(real_result, gevent_result): log('') log_call(real_result, time_real, real_func, *args) log_call(gevent_result, time_gevent, gevent_func, *args) self.assertEqualResults(real_result, gevent_result, func) if self.verbose_dns and time_gevent > time_real + 0.01 and time_gevent > 0.02: msg = 'gevent:%s%s took %dms versus %dms stdlib' % (func, args, time_gevent * 1000.0, time_real * 1000.0) if time_gevent > time_real + 1: word = 'VERY' else: word = 'quite' log('\nWARNING: %s slow: %s', word, msg) return gevent_result def _normalize_result(self, result, func_name): norm_name = '_normalize_result_' + func_name if hasattr(self, norm_name): return getattr(self, norm_name)(result) return result def _normalize_result_gethostbyname_ex(self, result): # Often the second and third part of the tuple (hostname, aliaslist, ipaddrlist) # can be in different orders if we're hitting different servers, # or using the native and ares resolvers due to load-balancing techniques. # We sort them. if not RESOLVER_NOT_SYSTEM or isinstance(result, BaseException): return result # result[1].sort() # we wind up discarding this # On Py2 in test_russion_gethostbyname_ex, this # is actually an integer, for some reason. In TestLocalhost.tets__ip6_localhost, # the result isn't this long (maybe an error?). try: result[2].sort() except AttributeError: pass except IndexError: return result # On some systems, a random alias is found in the aliaslist # by the system resolver, but not by cares, and vice versa. We deem the aliaslist # unimportant and discard it. # On some systems (Travis CI), the ipaddrlist for 'localhost' can come back # with two entries 127.0.0.1 (presumably two interfaces?) for c-ares ips = result[2] if ips == ['127.0.0.1', '127.0.0.1']: ips = ['127.0.0.1'] # On some systems, the hostname can get caps return (result[0].lower(), [], ips) def _normalize_result_getaddrinfo(self, result): if not RESOLVER_NOT_SYSTEM: return result # On Python 3, the builtin resolver can return SOCK_RAW results, but # c-ares doesn't do that. So we remove those if we find them. if hasattr(socket, 'SOCK_RAW') and isinstance(result, list): result = [x for x in result if x[1] != socket.SOCK_RAW] if isinstance(result, list): result.sort() return result def _normalize_result_gethostbyaddr(self, result): if not RESOLVER_NOT_SYSTEM: return result if isinstance(result, tuple): # On some systems, a random alias is found in the aliaslist # by the system resolver, but not by cares and vice versa. We deem the aliaslist # unimportant and discard it. return (result[0], [], result[2]) return result def assertEqualResults(self, real_result, gevent_result, func): errors = (socket.gaierror, socket.herror, TypeError) if isinstance(real_result, errors) and isinstance(gevent_result, errors): if type(real_result) is not type(gevent_result): log('WARNING: error type mismatch: %r (gevent) != %r (stdlib)', gevent_result, real_result) return real_result = self._normalize_result(real_result, func) gevent_result = self._normalize_result(gevent_result, func) real_result_repr = repr(real_result) gevent_result_repr = repr(gevent_result) if real_result_repr == gevent_result_repr: return if relaxed_is_equal(gevent_result, real_result): return # If we're using the ares resolver, allow the real resolver to generate an # error that the ares resolver actually gets an answer to. if ( RESOLVER_NOT_SYSTEM and isinstance(real_result, errors) and not isinstance(gevent_result, errors) ): return # From 2.7 on, assertEqual does a better job highlighting the results than we would # because it calls assertSequenceEqual, which highlights the exact # difference in the tuple self.assertEqual(real_result, gevent_result) class TestTypeError(TestCase): pass add(TestTypeError, None) add(TestTypeError, 25) class TestHostname(TestCase): pass add(TestHostname, socket.gethostname) class TestLocalhost(TestCase): # certain tests in test_patched_socket.py only work if getaddrinfo('localhost') does not switch # (e.g. NetworkConnectionAttributesTest.testSourceAddress) #switch_expected = False # XXX: The above has been commented out for some time. Apparently this isn't the case # anymore. def _normalize_result_getaddrinfo(self, result): if RESOLVER_NOT_SYSTEM: # We see that some impls (OS X) return extra results # like DGRAM that ares does not. return () return super(TestLocalhost, self)._normalize_result_getaddrinfo(result) if greentest.RUNNING_ON_TRAVIS and greentest.PY2 and RESOLVER_NOT_SYSTEM: def _normalize_result_gethostbyaddr(self, result): # Beginning in November 2017 after an upgrade to Travis, # we started seeing ares return ::1 for localhost, but # the system resolver is still returning 127.0.0.1 under Python 2 result = super(TestLocalhost, self)._normalize_result_gethostbyaddr(result) if isinstance(result, tuple): result = (result[0], result[1], ['127.0.0.1']) return result add( TestLocalhost, 'ip6-localhost', skip=greentest.RUNNING_ON_TRAVIS, skip_reason="ares fails here, for some reason, presumably a badly " "configured /etc/hosts" ) add( TestLocalhost, 'localhost', skip=greentest.RUNNING_ON_TRAVIS, skip_reason="Beginning Dec 1 2017, ares started returning ip6-localhost " "instead of localhost" ) class TestNonexistent(TestCase): pass add(TestNonexistent, 'nonexistentxxxyyy') class Test1234(TestCase): pass add(Test1234, '1.2.3.4') class Test127001(TestCase): pass add( Test127001, '127.0.0.1', skip=greentest.RUNNING_ON_TRAVIS, skip_reason="Beginning Dec 1 2017, ares started returning ip6-localhost " "instead of localhost" ) class TestBroadcast(TestCase): switch_expected = False if RESOLVER_NOT_SYSTEM: # ares and dnspython raises errors for broadcasthost/255.255.255.255 @unittest.skip('ares raises errors for broadcasthost/255.255.255.255') def test__broadcast__gethostbyaddr(self): return test__broadcast__gethostbyname = test__broadcast__gethostbyaddr add(TestBroadcast, '<broadcast>') from gevent.resolver.dnspython import HostsFile class SanitizedHostsFile(HostsFile): def iter_all_host_addr_pairs(self): for name, addr in super(SanitizedHostsFile, self).iter_all_host_addr_pairs(): if (RESOLVER_NOT_SYSTEM and (name.endswith('local') # ignore bonjour, ares can't find them # ignore common aliases that ares can't find or addr == '255.255.255.255' or name == 'broadcasthost' # We get extra results from some impls, like OS X # it returns DGRAM results or name == 'localhost')): continue # pragma: no cover if name.endswith('local'): # These can only be found if bonjour is running, # and are very slow to do so with the system resolver on OS X continue yield name, addr @greentest.skipIf(greentest.RUNNING_ON_CI, "This sometimes randomly fails on Travis with ares and on appveyor, beginning Feb 13, 2018") # Probably due to round-robin DNS, # since this is not actually the system's etc hosts file. # TODO: Rethink this. We need something reliable. Go back to using # the system's etc hosts? class TestEtcHosts(TestCase): MAX_HOSTS = int(os.getenv('GEVENTTEST_MAX_ETC_HOSTS', '10')) @classmethod def populate_tests(cls): hf = SanitizedHostsFile(os.path.join(os.path.dirname(__file__), 'hosts_file.txt')) all_etc_hosts = sorted(hf.iter_all_host_addr_pairs()) if len(all_etc_hosts) > cls.MAX_HOSTS and not DEBUG: all_etc_hosts = all_etc_hosts[:cls.MAX_HOSTS] for host, ip in all_etc_hosts: add(cls, host) add(cls, ip) TestEtcHosts.populate_tests() class TestGeventOrg(TestCase): HOSTNAME = 'www.gevent.org' # For this test to work correctly, it needs to resolve to # an address with a single A record; round-robin DNS and multiple A records # may mess it up (subsequent requests---and we always make two---may return # unequal results). We used to use gevent.org, but that now has multiple A records; # trying www.gevent.org which is a CNAME to readthedocs.org. add(TestGeventOrg, TestGeventOrg.HOSTNAME) class TestFamily(TestCase): @classmethod def getresult(cls): if not hasattr(cls, '_result'): cls._result = getattr(socket, 'getaddrinfo')(TestGeventOrg.HOSTNAME, None) return cls._result def test_inet(self): self.assertEqualResults(self.getresult(), gevent_socket.getaddrinfo(TestGeventOrg.HOSTNAME, None, socket.AF_INET), 'getaddrinfo') def test_unspec(self): self.assertEqualResults(self.getresult(), gevent_socket.getaddrinfo(TestGeventOrg.HOSTNAME, None, socket.AF_UNSPEC), 'getaddrinfo') def test_badvalue(self): self._test('getaddrinfo', TestGeventOrg.HOSTNAME, None, 255) self._test('getaddrinfo', TestGeventOrg.HOSTNAME, None, 255000) self._test('getaddrinfo', TestGeventOrg.HOSTNAME, None, -1) def test_badtype(self): self._test('getaddrinfo', TestGeventOrg.HOSTNAME, 'x') class Test_getaddrinfo(TestCase): def _test_getaddrinfo(self, *args): self._test('getaddrinfo', *args) def test_80(self): self._test_getaddrinfo(TestGeventOrg.HOSTNAME, 80) def test_int_string(self): self._test_getaddrinfo(TestGeventOrg.HOSTNAME, '80') def test_0(self): self._test_getaddrinfo(TestGeventOrg.HOSTNAME, 0) def test_http(self): self._test_getaddrinfo(TestGeventOrg.HOSTNAME, 'http') def test_notexistent_tld(self): self._test_getaddrinfo('myhost.mytld', 53) def test_notexistent_dot_com(self): self._test_getaddrinfo('sdfsdfgu5e66098032453245wfdggd.com', 80) def test1(self): return self._test_getaddrinfo(TestGeventOrg.HOSTNAME, 52, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, 0) def test2(self): return self._test_getaddrinfo(TestGeventOrg.HOSTNAME, 53, socket.AF_INET, socket.SOCK_DGRAM, 17) @unittest.skipIf(RESOLVER_DNSPYTHON, "dnspython only returns some of the possibilities") def test3(self): return self._test_getaddrinfo('google.com', 'http', socket.AF_INET6) @greentest.skipIf(PY2, "Enums only on Python 3.4+") def test_enums(self): # https://github.com/gevent/gevent/issues/1310 # On Python 3, getaddrinfo does special things to make sure that # the fancy enums are returned. gai = gevent_socket.getaddrinfo('example.com', 80, socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) af, socktype, _proto, _canonname, _sa = gai[0] self.assertIs(socktype, socket.SOCK_STREAM) self.assertIs(af, socket.AF_INET) class TestInternational(TestCase): pass # dns python can actually resolve these: it uses # the 2008 version of idna encoding, whereas on Python 2, # with the default resolver, it tries to encode to ascii and # raises a UnicodeEncodeError. So we get different results. add(TestInternational, u'президент.рф', 'russian', skip=(PY2 and RESOLVER_DNSPYTHON), skip_reason="dnspython can actually resolve these") add(TestInternational, u'президент.рф'.encode('idna'), 'idna') class TestInterrupted_gethostbyname(gevent.testing.timing.AbstractGenericWaitTestCase): # There are refs to a Waiter in the C code that don't go # away yet; one gc may or may not do it. @greentest.ignores_leakcheck def test_returns_none_after_timeout(self): super(TestInterrupted_gethostbyname, self).test_returns_none_after_timeout() def wait(self, timeout): with gevent.Timeout(timeout, False): for index in xrange(1000000): try: gevent_socket.gethostbyname('www.x%s.com' % index) except socket.error: pass raise AssertionError('Timeout was not raised') def cleanup(self): # Depending on timing, this can raise: # (This suddenly started happening on Apr 6 2016; www.x1000000.com # is apparently no longer around) # File "test__socket_dns.py", line 538, in cleanup # gevent.get_hub().threadpool.join() # File "/home/travis/build/gevent/gevent/src/gevent/threadpool.py", line 108, in join # sleep(delay) # File "/home/travis/build/gevent/gevent/src/gevent/hub.py", line 169, in sleep # hub.wait(loop.timer(seconds, ref=ref)) # File "/home/travis/build/gevent/gevent/src/gevent/hub.py", line 651, in wait # result = waiter.get() # File "/home/travis/build/gevent/gevent/src/gevent/hub.py", line 899, in get # return self.hub.switch() # File "/home/travis/build/gevent/gevent/src/greentest/greentest.py", line 520, in switch # return _original_Hub.switch(self, *args) # File "/home/travis/build/gevent/gevent/src/gevent/hub.py", line 630, in switch # return RawGreenlet.switch(self) # gaierror: [Errno -2] Name or service not known try: gevent.get_hub().threadpool.join() except Exception: # pragma: no cover pylint:disable=broad-except traceback.print_exc() # class TestInterrupted_getaddrinfo(greentest.GenericWaitTestCase): # # def wait(self, timeout): # with gevent.Timeout(timeout, False): # for index in range(1000): # try: # gevent_socket.getaddrinfo('www.a%s.com' % index, 'http') # except socket.gaierror: # pass class TestBadName(TestCase): pass add(TestBadName, 'xxxxxxxxxxxx') class TestBadIP(TestCase): pass add(TestBadIP, '1.2.3.400') @greentest.skipIf(greentest.RUNNING_ON_TRAVIS, "Travis began returning ip6-localhost") class Test_getnameinfo_127001(TestCase): def test(self): self._test('getnameinfo', ('127.0.0.1', 80), 0) def test_DGRAM(self): self._test('getnameinfo', ('127.0.0.1', 779), 0) self._test('getnameinfo', ('127.0.0.1', 779), socket.NI_DGRAM) def test_NOFQDN(self): # I get ('localhost', 'www') with _socket but ('localhost.localdomain', 'www') with gevent.socket self._test('getnameinfo', ('127.0.0.1', 80), socket.NI_NOFQDN) def test_NAMEREQD(self): self._test('getnameinfo', ('127.0.0.1', 80), socket.NI_NAMEREQD) class Test_getnameinfo_geventorg(TestCase): def test_NUMERICHOST(self): self._test('getnameinfo', (TestGeventOrg.HOSTNAME, 80), 0) self._test('getnameinfo', (TestGeventOrg.HOSTNAME, 80), socket.NI_NUMERICHOST) def test_NUMERICSERV(self): self._test('getnameinfo', (TestGeventOrg.HOSTNAME, 80), socket.NI_NUMERICSERV) def test_domain1(self): self._test('getnameinfo', (TestGeventOrg.HOSTNAME, 80), 0) def test_domain2(self): self._test('getnameinfo', ('www.gevent.org', 80), 0) def test_port_zero(self): self._test('getnameinfo', ('www.gevent.org', 0), 0) class Test_getnameinfo_fail(TestCase): def test_port_string(self): self._test('getnameinfo', ('www.gevent.org', 'http'), 0) def test_bad_flags(self): self._test('getnameinfo', ('localhost', 80), 55555555) class TestInvalidPort(TestCase): def test1(self): self._test('getnameinfo', ('www.gevent.org', -1), 0) def test2(self): self._test('getnameinfo', ('www.gevent.org', None), 0) def test3(self): self._test('getnameinfo', ('www.gevent.org', 'x'), 0) @unittest.skipIf(RESOLVER_DNSPYTHON, "System resolvers do funny things with this: macOS raises gaierror, " "Travis CI returns (readthedocs.org, '0'). It's hard to match that exactly. " "dnspython raises OverflowError.") def test4(self): self._test('getnameinfo', ('www.gevent.org', 65536), 0) if __name__ == '__main__': greentest.main()