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Current File : /srv/modoboa/env/lib/python3.5/site-packages/gevent/tests//test__makefile_ref.py
from __future__ import print_function
import os
from gevent import monkey; monkey.patch_all()
import socket
import ssl
import threading
import unittest
import errno
import weakref


import gevent.testing as greentest


dirname = os.path.dirname(os.path.abspath(__file__))
certfile = os.path.join(dirname, '2_7_keycert.pem')
pid = os.getpid()

PY3 = greentest.PY3
PYPY = greentest.PYPY
CPYTHON = not PYPY
PY2 = not PY3
fd_types = int
if PY3:
    long = int
fd_types = (int, long)
WIN = greentest.WIN

from gevent.testing import get_open_files
try:
    import psutil
except ImportError:
    psutil = None


class Test(greentest.TestCase):

    extra_allowed_open_states = ()

    def tearDown(self):
        self.extra_allowed_open_states = ()
        super(Test, self).tearDown()

    def assert_raises_EBADF(self, func):
        try:
            result = func()
        except (socket.error, OSError) as ex:
            # Windows/Py3 raises "OSError: [WinError 10038]"
            if ex.args[0] == errno.EBADF:
                return
            if WIN and ex.args[0] == 10038:
                return
            raise
        raise AssertionError('NOT RAISED EBADF: %r() returned %r' % (func, result))

    def assert_fd_open(self, fileno):
        assert isinstance(fileno, fd_types)
        open_files = get_open_files()
        if fileno not in open_files:
            raise AssertionError('%r is not open:\n%s' % (fileno, open_files['data']))

    def assert_fd_closed(self, fileno):
        assert isinstance(fileno, fd_types), repr(fileno)
        assert fileno > 0, fileno
        open_files = get_open_files()
        if fileno in open_files:
            raise AssertionError('%r is not closed:\n%s' % (fileno, open_files['data']))

    def _assert_sock_open(self, sock):
        # requires the psutil output
        open_files = get_open_files()
        sockname = sock.getsockname()
        for x in open_files['data']:
            if getattr(x, 'laddr', None) == sockname:
                assert x.status in (psutil.CONN_LISTEN, psutil.CONN_ESTABLISHED) + self.extra_allowed_open_states, x.status
                return
        raise AssertionError("%r is not open:\n%s" % (sock, open_files['data']))

    def assert_open(self, sock, *rest):
        if isinstance(sock, fd_types):
            if not WIN:
                self.assert_fd_open(sock)
        else:
            fileno = sock.fileno()
            assert isinstance(fileno, fd_types), fileno
            sockname = sock.getsockname()
            assert isinstance(sockname, tuple), sockname
            if not WIN:
                self.assert_fd_open(fileno)
            else:
                self._assert_sock_open(sock)
        if rest:
            self.assert_open(rest[0], *rest[1:])

    def assert_closed(self, sock, *rest):
        if isinstance(sock, fd_types):
            self.assert_fd_closed(sock)
        else:
            # Under Python3, the socket module returns -1 for a fileno
            # of a closed socket; under Py2 it raises
            if PY3:
                self.assertEqual(sock.fileno(), -1)
            else:
                self.assert_raises_EBADF(sock.fileno)
            self.assert_raises_EBADF(sock.getsockname)
            self.assert_raises_EBADF(sock.accept)
        if rest:
            self.assert_closed(rest[0], *rest[1:])

    def make_open_socket(self):
        s = socket.socket()
        s.bind(('127.0.0.1', 0))
        self._close_on_teardown(s)
        if WIN or greentest.LINUX:
            # Windows and linux (with psutil) doesn't show as open until
            # we call listen (linux with lsof accepts either)
            s.listen(1)
        self.assert_open(s, s.fileno())
        return s

    if CPYTHON and PY2:
        # Keeping raw sockets alive keeps SSL sockets
        # from being closed too, at least on CPython2, so we
        # need to use weakrefs.

        # In contrast, on PyPy, *only* having a weakref lets the
        # original socket die and leak

        def _close_on_teardown(self, resource):
            self.close_on_teardown.append(weakref.ref(resource))
            return resource

        def _tearDownCloseOnTearDown(self):
            self.close_on_teardown = [r() for r in self.close_on_teardown if r() is not None]
            super(Test, self)._tearDownCloseOnTearDown()

# Sometimes its this one, sometimes it's test_ssl. No clue why or how.
@greentest.skipOnAppVeyor("This sometimes times out for no apparent reason.")
class TestSocket(Test):

    def test_simple_close(self):
        s = self.make_open_socket()
        fileno = s.fileno()
        s.close()
        self.assert_closed(s, fileno)

    def test_makefile1(self):
        s = self.make_open_socket()
        fileno = s.fileno()
        f = s.makefile()
        self.assert_open(s, fileno)
        s.close()
        # Under python 2, this closes socket wrapper object but not the file descriptor;
        # under python 3, both stay open
        if PY3:
            self.assert_open(s, fileno)
        else:
            self.assert_closed(s)
            self.assert_open(fileno)
        f.close()
        self.assert_closed(s)
        self.assert_closed(fileno)

    def test_makefile2(self):
        s = self.make_open_socket()
        fileno = s.fileno()
        self.assert_open(s, fileno)
        f = s.makefile()
        self.assert_open(s)
        self.assert_open(s, fileno)
        f.close()
        # closing fileobject does not close the socket
        self.assert_open(s, fileno)
        s.close()
        self.assert_closed(s, fileno)

    def test_server_simple(self):
        listener = socket.socket()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)

        connector = socket.socket()
        self._close_on_teardown(connector)

        def connect():
            connector.connect(('127.0.0.1', port))

        t = threading.Thread(target=connect)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_closed(client_socket)
        finally:
            t.join()
            listener.close()
            connector.close()

    def test_server_makefile1(self):
        listener = socket.socket()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)

        connector = socket.socket()
        self._close_on_teardown(connector)

        def connect():
            connector.connect(('127.0.0.1', port))

        t = threading.Thread(target=connect)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            fileno = client_socket.fileno()
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            # Under python 2, this closes socket wrapper object but not the file descriptor;
            # under python 3, both stay open
            if PY3:
                self.assert_open(client_socket, fileno)
            else:
                self.assert_closed(client_socket)
                self.assert_open(fileno)
            f.close()
            self.assert_closed(client_socket, fileno)
        finally:
            t.join()
            listener.close()
            connector.close()

    def test_server_makefile2(self):
        listener = socket.socket()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)

        connector = socket.socket()
        self._close_on_teardown(connector)

        def connect():
            connector.connect(('127.0.0.1', port))

        t = threading.Thread(target=connect)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            fileno = client_socket.fileno()
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            # closing fileobject does not close the socket
            f.close()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_closed(client_socket, fileno)
        finally:
            t.join()
            listener.close()
            connector.close()


@greentest.skipOnAppVeyor("This sometimes times out for no apparent reason.")
class TestSSL(Test):

    def _ssl_connect_task(self, connector, port):
        connector.connect(('127.0.0.1', port))
        try:
            # Note: We get ResourceWarning about 'x'
            # on Python 3 if we don't join the spawned thread
            x = ssl.wrap_socket(connector)
        except socket.error:
            # Observed on Windows with PyPy2 5.9.0 and libuv:
            # if we don't switch in a timely enough fashion,
            # the server side runs ahead of us and closes
            # our socket first, so this fails.
            pass
        else:
            #self._close_on_teardown(x)
            x.close()

    def _make_ssl_connect_task(self, connector, port):
        t = threading.Thread(target=self._ssl_connect_task, args=(connector, port))
        t.daemon = True
        return t

    def __cleanup(self, task, *sockets):
        # workaround for test_server_makefile1, test_server_makefile2,
        # test_server_simple, test_serverssl_makefile1.

        # On PyPy on Linux, it is important to join the SSL Connect
        # Task FIRST, before closing the sockets. If we do it after
        # (which makes more sense) we hang. It's not clear why, except
        # that it has something to do with context switches. Inserting a call to
        # gevent.sleep(0.1) instead of joining the task has the same
        # effect. If the previous tests hang, then later tests can fail with
        # SSLError: unknown alert type.

        # XXX: Why do those two things happen?

        # On PyPy on macOS, we don't have that problem and can use the
        # more logical order.

        task.join()
        for s in sockets:
            s.close()

        del sockets
        del task

    def test_simple_close(self):
        s = self.make_open_socket()
        fileno = s.fileno()
        s = ssl.wrap_socket(s)
        self._close_on_teardown(s)
        fileno = s.fileno()
        self.assert_open(s, fileno)
        s.close()
        self.assert_closed(s, fileno)

    def test_makefile1(self):
        raw_s = self.make_open_socket()
        s = ssl.wrap_socket(raw_s)

        self._close_on_teardown(s)
        fileno = s.fileno()
        self.assert_open(s, fileno)
        f = s.makefile()
        self.assert_open(s, fileno)
        s.close()
        self.assert_open(s, fileno)
        f.close()
        raw_s.close()
        self.assert_closed(s, fileno)


    def test_makefile2(self):
        s = self.make_open_socket()
        fileno = s.fileno()

        s = ssl.wrap_socket(s)
        self._close_on_teardown(s)
        fileno = s.fileno()
        self.assert_open(s, fileno)
        f = s.makefile()
        self.assert_open(s, fileno)
        f.close()
        # closing fileobject does not close the socket
        self.assert_open(s, fileno)
        s.close()
        self.assert_closed(s, fileno)

    def test_server_simple(self):
        listener = socket.socket()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)

        connector = socket.socket()
        self._close_on_teardown(connector)

        t = self._make_ssl_connect_task(connector, port)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            self._close_on_teardown(client_socket.close)
            client_socket = ssl.wrap_socket(client_socket, keyfile=certfile, certfile=certfile, server_side=True)
            self._close_on_teardown(client_socket)
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_closed(client_socket, fileno)
        finally:
            self.__cleanup(t, listener, connector)

    def test_server_makefile1(self):
        listener = socket.socket()
        self._close_on_teardown(listener)
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)


        connector = socket.socket()
        self._close_on_teardown(connector)

        t = self._make_ssl_connect_task(connector, port)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            self._close_on_teardown(client_socket.close) # hard ref
            client_socket = ssl.wrap_socket(client_socket, keyfile=certfile, certfile=certfile, server_side=True)
            self._close_on_teardown(client_socket)
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_open(client_socket, fileno)
            f.close()
            self.assert_closed(client_socket, fileno)
        finally:
            self.__cleanup(t, listener, connector)


    def test_server_makefile2(self):
        listener = socket.socket()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)

        connector = socket.socket()
        self._close_on_teardown(connector)

        t = self._make_ssl_connect_task(connector, port)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            self._close_on_teardown(client_socket)
            client_socket = ssl.wrap_socket(client_socket, keyfile=certfile, certfile=certfile, server_side=True)
            self._close_on_teardown(client_socket)
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            # Closing fileobject does not close SSLObject
            f.close()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_closed(client_socket, fileno)
        finally:
            self.__cleanup(t, connector, listener, client_socket)

    def test_serverssl_makefile1(self):
        listener = socket.socket()
        fileno = listener.fileno()
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)
        self._close_on_teardown(listener)
        listener = ssl.wrap_socket(listener, keyfile=certfile, certfile=certfile)

        connector = socket.socket()
        self._close_on_teardown(connector)

        t = self._make_ssl_connect_task(connector, port)
        t.start()

        try:
            client_socket, _addr = listener.accept()
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_open(client_socket, fileno)
            f.close()
            self.assert_closed(client_socket, fileno)
        finally:
            self.__cleanup(t, listener, connector)

    @greentest.skipIf(greentest.RUNNING_ON_TRAVIS and greentest.PY37 and greentest.LIBUV,
                      "Often segfaults, cannot reproduce locally. "
                      "Not too worried about this before Python 3.7rc1. "
                      "https://travis-ci.org/gevent/gevent/jobs/327357684")
    def test_serverssl_makefile2(self):
        listener = socket.socket()
        self._close_on_teardown(listener)
        listener.bind(('127.0.0.1', 0))
        port = listener.getsockname()[1]
        listener.listen(1)
        listener = ssl.wrap_socket(listener, keyfile=certfile, certfile=certfile)

        connector = socket.socket()

        def connect():
            connector.connect(('127.0.0.1', port))
            s = ssl.wrap_socket(connector)
            s.sendall(b'test_serverssl_makefile2')
            s.close()
            connector.close()

        t = threading.Thread(target=connect)
        t.daemon = True
        t.start()

        try:
            client_socket, _addr = listener.accept()
            fileno = client_socket.fileno()
            self.assert_open(client_socket, fileno)
            f = client_socket.makefile()
            self.assert_open(client_socket, fileno)
            self.assertEqual(f.read(), 'test_serverssl_makefile2')
            self.assertEqual(f.read(), '')
            f.close()
            if WIN and psutil:
                # Hmm?
                self.extra_allowed_open_states = (psutil.CONN_CLOSE_WAIT,)
            self.assert_open(client_socket, fileno)
            client_socket.close()
            self.assert_closed(client_socket, fileno)
        finally:
            self.__cleanup(t, listener)


if __name__ == '__main__':
    unittest.main()

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