Add new Python websocket client

resources/lib/websocket/__init__.py

@@ -0,0 +1,28 @@
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+from ._abnf import *
+from ._app import WebSocketApp
+from ._core import *
+from ._exceptions import *
+from ._logging import *
+from ._socket import *
+
+__version__ = "0.58.0"

resources/lib/websocket/_abnf.py

@@ -0,0 +1,458 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import array
+import os
+import struct
+
+import six
+
+from ._exceptions import *
+from ._utils import validate_utf8
+from threading import Lock
+
+try:
+    if six.PY3:
+        import numpy
+    else:
+        numpy = None
+except ImportError:
+    numpy = None
+
+try:
+    # If wsaccel is available we use compiled routines to mask data.
+    if not numpy:
+        from wsaccel.xormask import XorMaskerSimple
+
+        def _mask(_m, _d):
+            return XorMaskerSimple(_m).process(_d)
+except ImportError:
+    # wsaccel is not available, we rely on python implementations.
+    def _mask(_m, _d):
+        for i in range(len(_d)):
+            _d[i] ^= _m[i % 4]
+
+        if six.PY3:
+            return _d.tobytes()
+        else:
+            return _d.tostring()
+
+
+__all__ = [
+    'ABNF', 'continuous_frame', 'frame_buffer',
+    'STATUS_NORMAL',
+    'STATUS_GOING_AWAY',
+    'STATUS_PROTOCOL_ERROR',
+    'STATUS_UNSUPPORTED_DATA_TYPE',
+    'STATUS_STATUS_NOT_AVAILABLE',
+    'STATUS_ABNORMAL_CLOSED',
+    'STATUS_INVALID_PAYLOAD',
+    'STATUS_POLICY_VIOLATION',
+    'STATUS_MESSAGE_TOO_BIG',
+    'STATUS_INVALID_EXTENSION',
+    'STATUS_UNEXPECTED_CONDITION',
+    'STATUS_BAD_GATEWAY',
+    'STATUS_TLS_HANDSHAKE_ERROR',
+]
+
+# closing frame status codes.
+STATUS_NORMAL = 1000
+STATUS_GOING_AWAY = 1001
+STATUS_PROTOCOL_ERROR = 1002
+STATUS_UNSUPPORTED_DATA_TYPE = 1003
+STATUS_STATUS_NOT_AVAILABLE = 1005
+STATUS_ABNORMAL_CLOSED = 1006
+STATUS_INVALID_PAYLOAD = 1007
+STATUS_POLICY_VIOLATION = 1008
+STATUS_MESSAGE_TOO_BIG = 1009
+STATUS_INVALID_EXTENSION = 1010
+STATUS_UNEXPECTED_CONDITION = 1011
+STATUS_BAD_GATEWAY = 1014
+STATUS_TLS_HANDSHAKE_ERROR = 1015
+
+VALID_CLOSE_STATUS = (
+    STATUS_NORMAL,
+    STATUS_GOING_AWAY,
+    STATUS_PROTOCOL_ERROR,
+    STATUS_UNSUPPORTED_DATA_TYPE,
+    STATUS_INVALID_PAYLOAD,
+    STATUS_POLICY_VIOLATION,
+    STATUS_MESSAGE_TOO_BIG,
+    STATUS_INVALID_EXTENSION,
+    STATUS_UNEXPECTED_CONDITION,
+    STATUS_BAD_GATEWAY,
+)
+
+
+class ABNF(object):
+    """
+    ABNF frame class.
+    See http://tools.ietf.org/html/rfc5234
+    and http://tools.ietf.org/html/rfc6455#section-5.2
+    """
+
+    # operation code values.
+    OPCODE_CONT = 0x0
+    OPCODE_TEXT = 0x1
+    OPCODE_BINARY = 0x2
+    OPCODE_CLOSE = 0x8
+    OPCODE_PING = 0x9
+    OPCODE_PONG = 0xa
+
+    # available operation code value tuple
+    OPCODES = (OPCODE_CONT, OPCODE_TEXT, OPCODE_BINARY, OPCODE_CLOSE,
+               OPCODE_PING, OPCODE_PONG)
+
+    # opcode human readable string
+    OPCODE_MAP = {
+        OPCODE_CONT: "cont",
+        OPCODE_TEXT: "text",
+        OPCODE_BINARY: "binary",
+        OPCODE_CLOSE: "close",
+        OPCODE_PING: "ping",
+        OPCODE_PONG: "pong"
+    }
+
+    # data length threshold.
+    LENGTH_7 = 0x7e
+    LENGTH_16 = 1 << 16
+    LENGTH_63 = 1 << 63
+
+    def __init__(self, fin=0, rsv1=0, rsv2=0, rsv3=0,
+                 opcode=OPCODE_TEXT, mask=1, data=""):
+        """
+        Constructor for ABNF. Please check RFC for arguments.
+        """
+        self.fin = fin
+        self.rsv1 = rsv1
+        self.rsv2 = rsv2
+        self.rsv3 = rsv3
+        self.opcode = opcode
+        self.mask = mask
+        if data is None:
+            data = ""
+        self.data = data
+        self.get_mask_key = os.urandom
+
+    def validate(self, skip_utf8_validation=False):
+        """
+        Validate the ABNF frame.
+
+        Parameters
+        ----------
+        skip_utf8_validation: skip utf8 validation.
+        """
+        if self.rsv1 or self.rsv2 or self.rsv3:
+            raise WebSocketProtocolException("rsv is not implemented, yet")
+
+        if self.opcode not in ABNF.OPCODES:
+            raise WebSocketProtocolException("Invalid opcode %r", self.opcode)
+
+        if self.opcode == ABNF.OPCODE_PING and not self.fin:
+            raise WebSocketProtocolException("Invalid ping frame.")
+
+        if self.opcode == ABNF.OPCODE_CLOSE:
+            l = len(self.data)
+            if not l:
+                return
+            if l == 1 or l >= 126:
+                raise WebSocketProtocolException("Invalid close frame.")
+            if l > 2 and not skip_utf8_validation and not validate_utf8(self.data[2:]):
+                raise WebSocketProtocolException("Invalid close frame.")
+
+            code = 256 * \
+                six.byte2int(self.data[0:1]) + six.byte2int(self.data[1:2])
+            if not self._is_valid_close_status(code):
+                raise WebSocketProtocolException("Invalid close opcode.")
+
+    @staticmethod
+    def _is_valid_close_status(code):
+        return code in VALID_CLOSE_STATUS or (3000 <= code < 5000)
+
+    def __str__(self):
+        return "fin=" + str(self.fin) \
+            + " opcode=" + str(self.opcode) \
+            + " data=" + str(self.data)
+
+    @staticmethod
+    def create_frame(data, opcode, fin=1):
+        """
+        Create frame to send text, binary and other data.
+
+        Parameters
+        ----------
+        data: <type>
+            data to send. This is string value(byte array).
+            If opcode is OPCODE_TEXT and this value is unicode,
+            data value is converted into unicode string, automatically.
+        opcode: <type>
+            operation code. please see OPCODE_XXX.
+        fin: <type>
+            fin flag. if set to 0, create continue fragmentation.
+        """
+        if opcode == ABNF.OPCODE_TEXT and isinstance(data, six.text_type):
+            data = data.encode("utf-8")
+        # mask must be set if send data from client
+        return ABNF(fin, 0, 0, 0, opcode, 1, data)
+
+    def format(self):
+        """
+        Format this object to string(byte array) to send data to server.
+        """
+        if any(x not in (0, 1) for x in [self.fin, self.rsv1, self.rsv2, self.rsv3]):
+            raise ValueError("not 0 or 1")
+        if self.opcode not in ABNF.OPCODES:
+            raise ValueError("Invalid OPCODE")
+        length = len(self.data)
+        if length >= ABNF.LENGTH_63:
+            raise ValueError("data is too long")
+
+        frame_header = chr(self.fin << 7
+                           | self.rsv1 << 6 | self.rsv2 << 5 | self.rsv3 << 4
+                           | self.opcode)
+        if length < ABNF.LENGTH_7:
+            frame_header += chr(self.mask << 7 | length)
+            frame_header = six.b(frame_header)
+        elif length < ABNF.LENGTH_16:
+            frame_header += chr(self.mask << 7 | 0x7e)
+            frame_header = six.b(frame_header)
+            frame_header += struct.pack("!H", length)
+        else:
+            frame_header += chr(self.mask << 7 | 0x7f)
+            frame_header = six.b(frame_header)
+            frame_header += struct.pack("!Q", length)
+
+        if not self.mask:
+            return frame_header + self.data
+        else:
+            mask_key = self.get_mask_key(4)
+            return frame_header + self._get_masked(mask_key)
+
+    def _get_masked(self, mask_key):
+        s = ABNF.mask(mask_key, self.data)
+
+        if isinstance(mask_key, six.text_type):
+            mask_key = mask_key.encode('utf-8')
+
+        return mask_key + s
+
+    @staticmethod
+    def mask(mask_key, data):
+        """
+        Mask or unmask data. Just do xor for each byte
+
+        Parameters
+        ----------
+        mask_key: <type>
+            4 byte string(byte).
+        data: <type>
+            data to mask/unmask.
+        """
+        if data is None:
+            data = ""
+
+        if isinstance(mask_key, six.text_type):
+            mask_key = six.b(mask_key)
+
+        if isinstance(data, six.text_type):
+            data = six.b(data)
+
+        if numpy:
+            origlen = len(data)
+            _mask_key = mask_key[3] << 24 | mask_key[2] << 16 | mask_key[1] << 8 | mask_key[0]
+
+            # We need data to be a multiple of four...
+            data += bytes(" " * (4 - (len(data) % 4)), "us-ascii")
+            a = numpy.frombuffer(data, dtype="uint32")
+            masked = numpy.bitwise_xor(a, [_mask_key]).astype("uint32")
+            if len(data) > origlen:
+              return masked.tobytes()[:origlen]
+            return masked.tobytes()
+        else:
+            _m = array.array("B", mask_key)
+            _d = array.array("B", data)
+            return _mask(_m, _d)
+
+
+class frame_buffer(object):
+    _HEADER_MASK_INDEX = 5
+    _HEADER_LENGTH_INDEX = 6
+
+    def __init__(self, recv_fn, skip_utf8_validation):
+        self.recv = recv_fn
+        self.skip_utf8_validation = skip_utf8_validation
+        # Buffers over the packets from the layer beneath until desired amount
+        # bytes of bytes are received.
+        self.recv_buffer = []
+        self.clear()
+        self.lock = Lock()
+
+    def clear(self):
+        self.header = None
+        self.length = None
+        self.mask = None
+
+    def has_received_header(self):
+        return self.header is None
+
+    def recv_header(self):
+        header = self.recv_strict(2)
+        b1 = header[0]
+
+        if six.PY2:
+            b1 = ord(b1)
+
+        fin = b1 >> 7 & 1
+        rsv1 = b1 >> 6 & 1
+        rsv2 = b1 >> 5 & 1
+        rsv3 = b1 >> 4 & 1
+        opcode = b1 & 0xf
+        b2 = header[1]
+
+        if six.PY2:
+            b2 = ord(b2)
+
+        has_mask = b2 >> 7 & 1
+        length_bits = b2 & 0x7f
+
+        self.header = (fin, rsv1, rsv2, rsv3, opcode, has_mask, length_bits)
+
+    def has_mask(self):
+        if not self.header:
+            return False
+        return self.header[frame_buffer._HEADER_MASK_INDEX]
+
+    def has_received_length(self):
+        return self.length is None
+
+    def recv_length(self):
+        bits = self.header[frame_buffer._HEADER_LENGTH_INDEX]
+        length_bits = bits & 0x7f
+        if length_bits == 0x7e:
+            v = self.recv_strict(2)
+            self.length = struct.unpack("!H", v)[0]
+        elif length_bits == 0x7f:
+            v = self.recv_strict(8)
+            self.length = struct.unpack("!Q", v)[0]
+        else:
+            self.length = length_bits
+
+    def has_received_mask(self):
+        return self.mask is None
+
+    def recv_mask(self):
+        self.mask = self.recv_strict(4) if self.has_mask() else ""
+
+    def recv_frame(self):
+
+        with self.lock:
+            # Header
+            if self.has_received_header():
+                self.recv_header()
+            (fin, rsv1, rsv2, rsv3, opcode, has_mask, _) = self.header
+
+            # Frame length
+            if self.has_received_length():
+                self.recv_length()
+            length = self.length
+
+            # Mask
+            if self.has_received_mask():
+                self.recv_mask()
+            mask = self.mask
+
+            # Payload
+            payload = self.recv_strict(length)
+            if has_mask:
+                payload = ABNF.mask(mask, payload)
+
+            # Reset for next frame
+            self.clear()
+
+            frame = ABNF(fin, rsv1, rsv2, rsv3, opcode, has_mask, payload)
+            frame.validate(self.skip_utf8_validation)
+
+        return frame
+
+    def recv_strict(self, bufsize):
+        shortage = bufsize - sum(len(x) for x in self.recv_buffer)
+        while shortage > 0:
+            # Limit buffer size that we pass to socket.recv() to avoid
+            # fragmenting the heap -- the number of bytes recv() actually
+            # reads is limited by socket buffer and is relatively small,
+            # yet passing large numbers repeatedly causes lots of large
+            # buffers allocated and then shrunk, which results in
+            # fragmentation.
+            bytes_ = self.recv(min(16384, shortage))
+            self.recv_buffer.append(bytes_)
+            shortage -= len(bytes_)
+
+        unified = six.b("").join(self.recv_buffer)
+
+        if shortage == 0:
+            self.recv_buffer = []
+            return unified
+        else:
+            self.recv_buffer = [unified[bufsize:]]
+            return unified[:bufsize]
+
+
+class continuous_frame(object):
+
+    def __init__(self, fire_cont_frame, skip_utf8_validation):
+        self.fire_cont_frame = fire_cont_frame
+        self.skip_utf8_validation = skip_utf8_validation
+        self.cont_data = None
+        self.recving_frames = None
+
+    def validate(self, frame):
+        if not self.recving_frames and frame.opcode == ABNF.OPCODE_CONT:
+            raise WebSocketProtocolException("Illegal frame")
+        if self.recving_frames and \
+                frame.opcode in (ABNF.OPCODE_TEXT, ABNF.OPCODE_BINARY):
+            raise WebSocketProtocolException("Illegal frame")
+
+    def add(self, frame):
+        if self.cont_data:
+            self.cont_data[1] += frame.data
+        else:
+            if frame.opcode in (ABNF.OPCODE_TEXT, ABNF.OPCODE_BINARY):
+                self.recving_frames = frame.opcode
+            self.cont_data = [frame.opcode, frame.data]
+
+        if frame.fin:
+            self.recving_frames = None
+
+    def is_fire(self, frame):
+        return frame.fin or self.fire_cont_frame
+
+    def extract(self, frame):
+        data = self.cont_data
+        self.cont_data = None
+        frame.data = data[1]
+        if not self.fire_cont_frame and data[0] == ABNF.OPCODE_TEXT and not self.skip_utf8_validation and not validate_utf8(frame.data):
+            raise WebSocketPayloadException(
+                "cannot decode: " + repr(frame.data))
+
+        return [data[0], frame]

resources/lib/websocket/_app.py

@@ -0,0 +1,394 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import inspect
+import select
+import sys
+import threading
+import time
+import traceback
+
+import six
+
+from ._abnf import ABNF
+from ._core import WebSocket, getdefaulttimeout
+from ._exceptions import *
+from . import _logging
+
+
+__all__ = ["WebSocketApp"]
+
+class Dispatcher:
+    """
+    Dispatcher
+    """
+    def __init__(self, app, ping_timeout):
+        self.app = app
+        self.ping_timeout = ping_timeout
+
+    def read(self, sock, read_callback, check_callback):
+        while self.app.keep_running:
+            r, w, e = select.select(
+                    (self.app.sock.sock, ), (), (), self.ping_timeout)
+            if r:
+                if not read_callback():
+                    break
+            check_callback()
+
+class SSLDispatcher:
+    """
+    SSLDispatcher
+    """
+    def __init__(self, app, ping_timeout):
+        self.app = app
+        self.ping_timeout = ping_timeout
+
+    def read(self, sock, read_callback, check_callback):
+        while self.app.keep_running:
+            r = self.select()
+            if r:
+                if not read_callback():
+                    break
+            check_callback()
+
+    def select(self):
+        sock = self.app.sock.sock
+        if sock.pending():
+            return [sock,]
+
+        r, w, e = select.select((sock, ), (), (), self.ping_timeout)
+        return r
+
+
+class WebSocketApp(object):
+    """
+    Higher level of APIs are provided. The interface is like JavaScript WebSocket object.
+    """
+
+    def __init__(self, url, header=None,
+                 on_open=None, on_message=None, on_error=None,
+                 on_close=None, on_ping=None, on_pong=None,
+                 on_cont_message=None,
+                 keep_running=True, get_mask_key=None, cookie=None,
+                 subprotocols=None,
+                 on_data=None):
+        """
+        WebSocketApp initialization
+
+        Parameters
+        ----------
+        url: <type>
+            websocket url.
+        header: list or dict
+            custom header for websocket handshake.
+        on_open: <type>
+            callable object which is called at opening websocket.
+            this function has one argument. The argument is this class object.
+        on_message: <type>
+            callable object which is called when received data.
+            on_message has 2 arguments.
+            The 1st argument is this class object.
+            The 2nd argument is utf-8 string which we get from the server.
+        on_error: <type>
+            callable object which is called when we get error.
+            on_error has 2 arguments.
+            The 1st argument is this class object.
+            The 2nd argument is exception object.
+        on_close: <type>
+            callable object which is called when closed the connection.
+            this function has one argument. The argument is this class object.
+        on_cont_message: <type>
+            callback object which is called when receive continued
+            frame data.
+            on_cont_message has 3 arguments.
+            The 1st argument is this class object.
+            The 2nd argument is utf-8 string which we get from the server.
+            The 3rd argument is continue flag. if 0, the data continue
+            to next frame data
+        on_data: <type>
+            callback object which is called when a message received.
+            This is called before on_message or on_cont_message,
+            and then on_message or on_cont_message is called.
+            on_data has 4 argument.
+            The 1st argument is this class object.
+            The 2nd argument is utf-8 string which we get from the server.
+            The 3rd argument is data type. ABNF.OPCODE_TEXT or ABNF.OPCODE_BINARY will be came.
+            The 4th argument is continue flag. if 0, the data continue
+        keep_running: <type>
+            this parameter is obsolete and ignored.
+        get_mask_key: func
+            a callable to produce new mask keys,
+            see the WebSocket.set_mask_key's docstring for more information
+        cookie: str
+            cookie value.
+        subprotocols: <type>
+            array of available sub protocols. default is None.
+        """
+        self.url = url
+        self.header = header if header is not None else []
+        self.cookie = cookie
+
+        self.on_open = on_open
+        self.on_message = on_message
+        self.on_data = on_data
+        self.on_error = on_error
+        self.on_close = on_close
+        self.on_ping = on_ping
+        self.on_pong = on_pong
+        self.on_cont_message = on_cont_message
+        self.keep_running = False
+        self.get_mask_key = get_mask_key
+        self.sock = None
+        self.last_ping_tm = 0
+        self.last_pong_tm = 0
+        self.subprotocols = subprotocols
+
+    def send(self, data, opcode=ABNF.OPCODE_TEXT):
+        """
+        send message
+
+        Parameters
+        ----------
+        data: <type>
+            Message to send. If you set opcode to OPCODE_TEXT,
+            data must be utf-8 string or unicode.
+        opcode: <type>
+            Operation code of data. default is OPCODE_TEXT.
+        """
+
+        if not self.sock or self.sock.send(data, opcode) == 0:
+            raise WebSocketConnectionClosedException(
+                "Connection is already closed.")
+
+    def close(self, **kwargs):
+        """
+        Close websocket connection.
+        """
+        self.keep_running = False
+        if self.sock:
+            self.sock.close(**kwargs)
+            self.sock = None
+
+    def _send_ping(self, interval, event):
+        while not event.wait(interval):
+            self.last_ping_tm = time.time()
+            if self.sock:
+                try:
+                    self.sock.ping()
+                except Exception as ex:
+                    _logging.warning("send_ping routine terminated: {}".format(ex))
+                    break
+
+    def run_forever(self, sockopt=None, sslopt=None,
+                    ping_interval=0, ping_timeout=None,
+                    http_proxy_host=None, http_proxy_port=None,
+                    http_no_proxy=None, http_proxy_auth=None,
+                    skip_utf8_validation=False,
+                    host=None, origin=None, dispatcher=None,
+                    suppress_origin=False, proxy_type=None):
+        """
+        Run event loop for WebSocket framework.
+
+        This loop is an infinite loop and is alive while websocket is available.
+
+        Parameters
+        ----------
+        sockopt: tuple
+            values for socket.setsockopt.
+            sockopt must be tuple
+            and each element is argument of sock.setsockopt.
+        sslopt: dict
+            optional dict object for ssl socket option.
+        ping_interval: int or float
+            automatically send "ping" command
+            every specified period (in seconds)
+            if set to 0, not send automatically.
+        ping_timeout: int or float
+            timeout (in seconds) if the pong message is not received.
+        http_proxy_host: <type>
+            http proxy host name.
+        http_proxy_port: <type>
+            http proxy port. If not set, set to 80.
+        http_no_proxy: <type>
+            host names, which doesn't use proxy.
+        skip_utf8_validation: bool
+            skip utf8 validation.
+        host: str
+            update host header.
+        origin: str
+            update origin header.
+        dispatcher: <type>
+            customize reading data from socket.
+        suppress_origin: bool
+            suppress outputting origin header.
+
+        Returns
+        -------
+        teardown: bool
+            False if caught KeyboardInterrupt, True if other exception was raised during a loop
+        """
+
+        if ping_timeout is not None and ping_timeout <= 0:
+            ping_timeout = None
+        if ping_timeout and ping_interval and ping_interval <= ping_timeout:
+            raise WebSocketException("Ensure ping_interval > ping_timeout")
+        if not sockopt:
+            sockopt = []
+        if not sslopt:
+            sslopt = {}
+        if self.sock:
+            raise WebSocketException("socket is already opened")
+        thread = None
+        self.keep_running = True
+        self.last_ping_tm = 0
+        self.last_pong_tm = 0
+
+        def teardown(close_frame=None):
+            """
+            Tears down the connection.
+
+            If close_frame is set, we will invoke the on_close handler with the
+            statusCode and reason from there.
+            """
+            if thread and thread.is_alive():
+                event.set()
+                thread.join()
+            self.keep_running = False
+            if self.sock:
+                self.sock.close()
+            close_args = self._get_close_args(
+                close_frame.data if close_frame else None)
+            self._callback(self.on_close, *close_args)
+            self.sock = None
+
+        try:
+            self.sock = WebSocket(
+                self.get_mask_key, sockopt=sockopt, sslopt=sslopt,
+                fire_cont_frame=self.on_cont_message is not None,
+                skip_utf8_validation=skip_utf8_validation,
+                enable_multithread=True if ping_interval else False)
+            self.sock.settimeout(getdefaulttimeout())
+            self.sock.connect(
+                self.url, header=self.header, cookie=self.cookie,
+                http_proxy_host=http_proxy_host,
+                http_proxy_port=http_proxy_port, http_no_proxy=http_no_proxy,
+                http_proxy_auth=http_proxy_auth, subprotocols=self.subprotocols,
+                host=host, origin=origin, suppress_origin=suppress_origin,
+                proxy_type=proxy_type)
+            if not dispatcher:
+                dispatcher = self.create_dispatcher(ping_timeout)
+
+            self._callback(self.on_open)
+
+            if ping_interval:
+                event = threading.Event()
+                thread = threading.Thread(
+                    target=self._send_ping, args=(ping_interval, event))
+                thread.setDaemon(True)
+                thread.start()
+
+            def read():
+                if not self.keep_running:
+                    return teardown()
+
+                op_code, frame = self.sock.recv_data_frame(True)
+                if op_code == ABNF.OPCODE_CLOSE:
+                    return teardown(frame)
+                elif op_code == ABNF.OPCODE_PING:
+                    self._callback(self.on_ping, frame.data)
+                elif op_code == ABNF.OPCODE_PONG:
+                    self.last_pong_tm = time.time()
+                    self._callback(self.on_pong, frame.data)
+                elif op_code == ABNF.OPCODE_CONT and self.on_cont_message:
+                    self._callback(self.on_data, frame.data,
+                                   frame.opcode, frame.fin)
+                    self._callback(self.on_cont_message,
+                                   frame.data, frame.fin)
+                else:
+                    data = frame.data
+                    if six.PY3 and op_code == ABNF.OPCODE_TEXT:
+                        data = data.decode("utf-8")
+                    self._callback(self.on_data, data, frame.opcode, True)
+                    self._callback(self.on_message, data)
+
+                return True
+
+            def check():
+                if (ping_timeout):
+                    has_timeout_expired = time.time() - self.last_ping_tm > ping_timeout
+                    has_pong_not_arrived_after_last_ping = self.last_pong_tm - self.last_ping_tm < 0
+                    has_pong_arrived_too_late = self.last_pong_tm - self.last_ping_tm > ping_timeout
+
+                    if (self.last_ping_tm
+                            and has_timeout_expired
+                            and (has_pong_not_arrived_after_last_ping or has_pong_arrived_too_late)):
+                        raise WebSocketTimeoutException("ping/pong timed out")
+                return True
+
+            dispatcher.read(self.sock.sock, read, check)
+        except (Exception, KeyboardInterrupt, SystemExit) as e:
+            self._callback(self.on_error, e)
+            if isinstance(e, SystemExit):
+                # propagate SystemExit further
+                raise
+            teardown()
+            return not isinstance(e, KeyboardInterrupt)
+
+    def create_dispatcher(self, ping_timeout):
+        timeout = ping_timeout or 10
+        if self.sock.is_ssl():
+            return SSLDispatcher(self, timeout)
+
+        return Dispatcher(self, timeout)
+
+    def _get_close_args(self, data):
+        """
+        _get_close_args extracts the code, reason from the close body
+        if they exists, and if the self.on_close except three arguments
+        """
+        # if the on_close callback is "old", just return empty list
+        if sys.version_info < (3, 0):
+            if not self.on_close or len(inspect.getargspec(self.on_close).args) != 3:
+                return []
+        else:
+            if not self.on_close or len(inspect.getfullargspec(self.on_close).args) != 3:
+                return []
+
+        if data and len(data) >= 2:
+            code = 256 * six.byte2int(data[0:1]) + six.byte2int(data[1:2])
+            reason = data[2:].decode('utf-8')
+            return [code, reason]
+
+        return [None, None]
+
+    def _callback(self, callback, *args):
+        if callback:
+            try:
+                callback(self, *args)
+
+            except Exception as e:
+                _logging.error("error from callback {}: {}".format(callback, e))
+                if _logging.isEnabledForDebug():
+                    _, _, tb = sys.exc_info()
+                    traceback.print_tb(tb)

resources/lib/websocket/_cookiejar.py

@@ -0,0 +1,76 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+try:
+    import Cookie
+except:
+    import http.cookies as Cookie
+
+
+class SimpleCookieJar(object):
+    def __init__(self):
+        self.jar = dict()
+
+    def add(self, set_cookie):
+        if set_cookie:
+            try:
+                simpleCookie = Cookie.SimpleCookie(set_cookie)
+            except:
+                simpleCookie = Cookie.SimpleCookie(set_cookie.encode('ascii', 'ignore'))
+
+            for k, v in simpleCookie.items():
+                domain = v.get("domain")
+                if domain:
+                    if not domain.startswith("."):
+                        domain = "." + domain
+                    cookie = self.jar.get(domain) if self.jar.get(domain) else Cookie.SimpleCookie()
+                    cookie.update(simpleCookie)
+                    self.jar[domain.lower()] = cookie
+
+    def set(self, set_cookie):
+        if set_cookie:
+            try:
+                simpleCookie = Cookie.SimpleCookie(set_cookie)
+            except:
+                simpleCookie = Cookie.SimpleCookie(set_cookie.encode('ascii', 'ignore'))
+
+            for k, v in simpleCookie.items():
+                domain = v.get("domain")
+                if domain:
+                    if not domain.startswith("."):
+                        domain = "." + domain
+                    self.jar[domain.lower()] = simpleCookie
+
+    def get(self, host):
+        if not host:
+            return ""
+
+        cookies = []
+        for domain, simpleCookie in self.jar.items():
+            host = host.lower()
+            if host.endswith(domain) or host == domain[1:]:
+                cookies.append(self.jar.get(domain))
+
+        return "; ".join(filter(None, ["%s=%s" % (k, v.value) for cookie in filter(None, sorted(cookies)) for k, v in
+                                       sorted(cookie.items())]))

resources/lib/websocket/_core.py

@@ -0,0 +1,595 @@
+from __future__ import print_function
+"""
+_core.py
+====================================
+WebSocket Python client
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import socket
+import struct
+import threading
+import time
+
+import six
+
+# websocket modules
+from ._abnf import *
+from ._exceptions import *
+from ._handshake import *
+from ._http import *
+from ._logging import *
+from ._socket import *
+from ._ssl_compat import *
+from ._utils import *
+
+__all__ = ['WebSocket', 'create_connection']
+
+class WebSocket(object):
+    """
+    Low level WebSocket interface.
+
+    This class is based on the WebSocket protocol `draft-hixie-thewebsocketprotocol-76 <http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76>`_
+
+    We can connect to the websocket server and send/receive data.
+    The following example is an echo client.
+
+    >>> import websocket
+    >>> ws = websocket.WebSocket()
+    >>> ws.connect("ws://echo.websocket.org")
+    >>> ws.send("Hello, Server")
+    >>> ws.recv()
+    'Hello, Server'
+    >>> ws.close()
+
+    Parameters
+    ----------
+    get_mask_key: func
+        a callable to produce new mask keys, see the set_mask_key
+        function's docstring for more details
+    sockopt: tuple
+        values for socket.setsockopt.
+        sockopt must be tuple and each element is argument of sock.setsockopt.
+    sslopt: dict
+        optional dict object for ssl socket option.
+    fire_cont_frame: bool
+        fire recv event for each cont frame. default is False
+    enable_multithread: bool
+        if set to True, lock send method.
+    skip_utf8_validation: bool
+        skip utf8 validation.
+    """
+
+    def __init__(self, get_mask_key=None, sockopt=None, sslopt=None,
+                 fire_cont_frame=False, enable_multithread=False,
+                 skip_utf8_validation=False, **_):
+        """
+        Initialize WebSocket object.
+
+        Parameters
+        ----------
+        sslopt: specify ssl certification verification options
+        """
+        self.sock_opt = sock_opt(sockopt, sslopt)
+        self.handshake_response = None
+        self.sock = None
+
+        self.connected = False
+        self.get_mask_key = get_mask_key
+        # These buffer over the build-up of a single frame.
+        self.frame_buffer = frame_buffer(self._recv, skip_utf8_validation)
+        self.cont_frame = continuous_frame(
+            fire_cont_frame, skip_utf8_validation)
+
+        if enable_multithread:
+            self.lock = threading.Lock()
+            self.readlock = threading.Lock()
+        else:
+            self.lock = NoLock()
+            self.readlock = NoLock()
+
+    def __iter__(self):
+        """
+        Allow iteration over websocket, implying sequential `recv` executions.
+        """
+        while True:
+            yield self.recv()
+
+    def __next__(self):
+        return self.recv()
+
+    def next(self):
+        return self.__next__()
+
+    def fileno(self):
+        return self.sock.fileno()
+
+    def set_mask_key(self, func):
+        """
+        Set function to create mask key. You can customize mask key generator.
+        Mainly, this is for testing purpose.
+
+        Parameters
+        ----------
+        func: func
+            callable object. the func takes 1 argument as integer.
+            The argument means length of mask key.
+            This func must return string(byte array),
+            which length is argument specified.
+        """
+        self.get_mask_key = func
+
+    def gettimeout(self):
+        """
+        Get the websocket timeout (in seconds) as an int or float
+
+        Returns
+        ----------
+        timeout: int or float
+             returns timeout value (in seconds). This value could be either float/integer.
+        """
+        return self.sock_opt.timeout
+
+    def settimeout(self, timeout):
+        """
+        Set the timeout to the websocket.
+
+        Parameters
+        ----------
+        timeout: int or float
+            timeout time (in seconds). This value could be either float/integer.
+        """
+        self.sock_opt.timeout = timeout
+        if self.sock:
+            self.sock.settimeout(timeout)
+
+    timeout = property(gettimeout, settimeout)
+
+    def getsubprotocol(self):
+        """
+        Get subprotocol
+        """
+        if self.handshake_response:
+            return self.handshake_response.subprotocol
+        else:
+            return None
+
+    subprotocol = property(getsubprotocol)
+
+    def getstatus(self):
+        """
+        Get handshake status
+        """
+        if self.handshake_response:
+            return self.handshake_response.status
+        else:
+            return None
+
+    status = property(getstatus)
+
+    def getheaders(self):
+        """
+        Get handshake response header
+        """
+        if self.handshake_response:
+            return self.handshake_response.headers
+        else:
+            return None
+
+    def is_ssl(self):
+        return isinstance(self.sock, ssl.SSLSocket)
+
+    headers = property(getheaders)
+
+    def connect(self, url, **options):
+        """
+        Connect to url. url is websocket url scheme.
+        ie. ws://host:port/resource
+        You can customize using 'options'.
+        If you set "header" list object, you can set your own custom header.
+
+        >>> ws = WebSocket()
+        >>> ws.connect("ws://echo.websocket.org/",
+                ...     header=["User-Agent: MyProgram",
+                ...             "x-custom: header"])
+
+        timeout: <type>
+            socket timeout time. This value is an integer or float.
+            if you set None for this value, it means "use default_timeout value"
+
+        Parameters
+        ----------
+        options:
+                 - header: list or dict
+                    custom http header list or dict.
+                 - cookie: str
+                    cookie value.
+                 - origin: str
+                    custom origin url.
+                 - suppress_origin: bool
+                    suppress outputting origin header.
+                 - host: str
+                    custom host header string.
+                 - http_proxy_host: <type>
+                    http proxy host name.
+                 - http_proxy_port: <type>
+                    http proxy port. If not set, set to 80.
+                 - http_no_proxy: <type>
+                    host names, which doesn't use proxy.
+                 - http_proxy_auth: <type>
+                    http proxy auth information. tuple of username and password. default is None
+                 - redirect_limit: <type>
+                    number of redirects to follow.
+                 - subprotocols: <type>
+                    array of available sub protocols. default is None.
+                 - socket: <type>
+                    pre-initialized stream socket.
+        """
+        self.sock_opt.timeout = options.get('timeout', self.sock_opt.timeout)
+        self.sock, addrs = connect(url, self.sock_opt, proxy_info(**options),
+                                   options.pop('socket', None))
+
+        try:
+            self.handshake_response = handshake(self.sock, *addrs, **options)
+            for attempt in range(options.pop('redirect_limit', 3)):
+                if self.handshake_response.status in SUPPORTED_REDIRECT_STATUSES:
+                    url = self.handshake_response.headers['location']
+                    self.sock.close()
+                    self.sock, addrs =  connect(url, self.sock_opt, proxy_info(**options),
+                                                options.pop('socket', None))
+                    self.handshake_response = handshake(self.sock, *addrs, **options)
+            self.connected = True
+        except:
+            if self.sock:
+                self.sock.close()
+                self.sock = None
+            raise
+
+    def send(self, payload, opcode=ABNF.OPCODE_TEXT):
+        """
+        Send the data as string.
+
+        Parameters
+        ----------
+        payload:  <type>
+                  Payload must be utf-8 string or unicode,
+                  if the opcode is OPCODE_TEXT.
+                  Otherwise, it must be string(byte array)
+        opcode:   <type>
+                  operation code to send. Please see OPCODE_XXX.
+        """
+
+        frame = ABNF.create_frame(payload, opcode)
+        return self.send_frame(frame)
+
+    def send_frame(self, frame):
+        """
+        Send the data frame.
+
+        >>> ws = create_connection("ws://echo.websocket.org/")
+        >>> frame = ABNF.create_frame("Hello", ABNF.OPCODE_TEXT)
+        >>> ws.send_frame(frame)
+        >>> cont_frame = ABNF.create_frame("My name is ", ABNF.OPCODE_CONT, 0)
+        >>> ws.send_frame(frame)
+        >>> cont_frame = ABNF.create_frame("Foo Bar", ABNF.OPCODE_CONT, 1)
+        >>> ws.send_frame(frame)
+
+        Parameters
+        ----------
+        frame: <type>
+            frame data created by ABNF.create_frame
+        """
+        if self.get_mask_key:
+            frame.get_mask_key = self.get_mask_key
+        data = frame.format()
+        length = len(data)
+        if (isEnabledForTrace()):
+            trace("send: " + repr(data))
+
+        with self.lock:
+            while data:
+                l = self._send(data)
+                data = data[l:]
+
+        return length
+
+    def send_binary(self, payload):
+        return self.send(payload, ABNF.OPCODE_BINARY)
+
+    def ping(self, payload=""):
+        """
+        Send ping data.
+
+        Parameters
+        ----------
+        payload: <type>
+            data payload to send server.
+        """
+        if isinstance(payload, six.text_type):
+            payload = payload.encode("utf-8")
+        self.send(payload, ABNF.OPCODE_PING)
+
+    def pong(self, payload=""):
+        """
+        Send pong data.
+
+        Parameters
+        ----------
+        payload: <type>
+            data payload to send server.
+        """
+        if isinstance(payload, six.text_type):
+            payload = payload.encode("utf-8")
+        self.send(payload, ABNF.OPCODE_PONG)
+
+    def recv(self):
+        """
+        Receive string data(byte array) from the server.
+
+        Returns
+        ----------
+        data: string (byte array) value.
+        """
+        with self.readlock:
+            opcode, data = self.recv_data()
+        if six.PY3 and opcode == ABNF.OPCODE_TEXT:
+            return data.decode("utf-8")
+        elif opcode == ABNF.OPCODE_TEXT or opcode == ABNF.OPCODE_BINARY:
+            return data
+        else:
+            return ''
+
+    def recv_data(self, control_frame=False):
+        """
+        Receive data with operation code.
+
+        Parameters
+        ----------
+        control_frame: bool
+            a boolean flag indicating whether to return control frame
+            data, defaults to False
+
+        Returns
+        -------
+        opcode, frame.data: tuple
+            tuple of operation code and string(byte array) value.
+        """
+        opcode, frame = self.recv_data_frame(control_frame)
+        return opcode, frame.data
+
+    def recv_data_frame(self, control_frame=False):
+        """
+        Receive data with operation code.
+
+        Parameters
+        ----------
+        control_frame: bool
+            a boolean flag indicating whether to return control frame
+            data, defaults to False
+
+        Returns
+        -------
+        frame.opcode, frame: tuple
+            tuple of operation code and string(byte array) value.
+        """
+        while True:
+            frame = self.recv_frame()
+            if not frame:
+                # handle error:
+                # 'NoneType' object has no attribute 'opcode'
+                raise WebSocketProtocolException(
+                    "Not a valid frame %s" % frame)
+            elif frame.opcode in (ABNF.OPCODE_TEXT, ABNF.OPCODE_BINARY, ABNF.OPCODE_CONT):
+                self.cont_frame.validate(frame)
+                self.cont_frame.add(frame)
+
+                if self.cont_frame.is_fire(frame):
+                    return self.cont_frame.extract(frame)
+
+            elif frame.opcode == ABNF.OPCODE_CLOSE:
+                self.send_close()
+                return frame.opcode, frame
+            elif frame.opcode == ABNF.OPCODE_PING:
+                if len(frame.data) < 126:
+                    self.pong(frame.data)
+                else:
+                    raise WebSocketProtocolException(
+                        "Ping message is too long")
+                if control_frame:
+                    return frame.opcode, frame
+            elif frame.opcode == ABNF.OPCODE_PONG:
+                if control_frame:
+                    return frame.opcode, frame
+
+    def recv_frame(self):
+        """
+        Receive data as frame from server.
+
+        Returns
+        -------
+        self.frame_buffer.recv_frame(): ABNF frame object
+        """
+        return self.frame_buffer.recv_frame()
+
+    def send_close(self, status=STATUS_NORMAL, reason=six.b("")):
+        """
+        Send close data to the server.
+
+        Parameters
+        ----------
+        status: <type>
+            status code to send. see STATUS_XXX.
+        reason: str or bytes
+            the reason to close. This must be string or bytes.
+        """
+        if status < 0 or status >= ABNF.LENGTH_16:
+            raise ValueError("code is invalid range")
+        self.connected = False
+        self.send(struct.pack('!H', status) + reason, ABNF.OPCODE_CLOSE)
+
+    def close(self, status=STATUS_NORMAL, reason=six.b(""), timeout=3):
+        """
+        Close Websocket object
+
+        Parameters
+        ----------
+        status: <type>
+            status code to send. see STATUS_XXX.
+        reason: <type>
+            the reason to close. This must be string.
+        timeout: int or float
+            timeout until receive a close frame.
+            If None, it will wait forever until receive a close frame.
+        """
+        if self.connected:
+            if status < 0 or status >= ABNF.LENGTH_16:
+                raise ValueError("code is invalid range")
+
+            try:
+                self.connected = False
+                self.send(struct.pack('!H', status) +
+                          reason, ABNF.OPCODE_CLOSE)
+                sock_timeout = self.sock.gettimeout()
+                self.sock.settimeout(timeout)
+                start_time = time.time()
+                while timeout is None or time.time() - start_time < timeout:
+                    try:
+                        frame = self.recv_frame()
+                        if frame.opcode != ABNF.OPCODE_CLOSE:
+                            continue
+                        if isEnabledForError():
+                            recv_status = struct.unpack("!H", frame.data[0:2])[0]
+                            if recv_status >= 3000 and recv_status <= 4999:
+                                debug("close status: " + repr(recv_status))
+                            elif recv_status != STATUS_NORMAL:
+                                error("close status: " + repr(recv_status))
+                        break
+                    except:
+                        break
+                self.sock.settimeout(sock_timeout)
+                self.sock.shutdown(socket.SHUT_RDWR)
+            except:
+                pass
+
+            self.shutdown()
+
+    def abort(self):
+        """
+        Low-level asynchronous abort, wakes up other threads that are waiting in recv_*
+        """
+        if self.connected:
+            self.sock.shutdown(socket.SHUT_RDWR)
+
+    def shutdown(self):
+        """
+        close socket, immediately.
+        """
+        if self.sock:
+            self.sock.close()
+            self.sock = None
+            self.connected = False
+
+    def _send(self, data):
+        return send(self.sock, data)
+
+    def _recv(self, bufsize):
+        try:
+            return recv(self.sock, bufsize)
+        except WebSocketConnectionClosedException:
+            if self.sock:
+                self.sock.close()
+            self.sock = None
+            self.connected = False
+            raise
+
+
+def create_connection(url, timeout=None, class_=WebSocket, **options):
+    """
+    Connect to url and return websocket object.
+
+    Connect to url and return the WebSocket object.
+    Passing optional timeout parameter will set the timeout on the socket.
+    If no timeout is supplied,
+    the global default timeout setting returned by getdefaulttimeout() is used.
+    You can customize using 'options'.
+    If you set "header" list object, you can set your own custom header.
+
+    >>> conn = create_connection("ws://echo.websocket.org/",
+         ...     header=["User-Agent: MyProgram",
+         ...             "x-custom: header"])
+
+    Parameters
+    ----------
+    timeout: int or float
+             socket timeout time. This value could be either float/integer.
+             if you set None for this value,
+             it means "use default_timeout value"
+    class_: <type>
+            class to instantiate when creating the connection. It has to implement
+            settimeout and connect. It's __init__ should be compatible with
+            WebSocket.__init__, i.e. accept all of it's kwargs.
+    options: <type>
+             - header: list or dict
+                custom http header list or dict.
+             - cookie: str
+                cookie value.
+             - origin: str
+                custom origin url.
+             - suppress_origin: bool
+                suppress outputting origin header.
+             - host: <type>
+                custom host header string.
+             - http_proxy_host: <type>
+                http proxy host name.
+             - http_proxy_port: <type>
+                http proxy port. If not set, set to 80.
+             - http_no_proxy: <type>
+                host names, which doesn't use proxy.
+             - http_proxy_auth: <type>
+                http proxy auth information. tuple of username and password. default is None
+             - enable_multithread: bool
+                enable lock for multithread.
+             - redirect_limit: <type>
+                number of redirects to follow.
+             - sockopt: <type>
+                socket options
+             - sslopt: <type>
+                ssl option
+             - subprotocols: <type>
+                array of available sub protocols. default is None.
+             - skip_utf8_validation: bool
+                skip utf8 validation.
+             - socket: <type>
+                pre-initialized stream socket.
+    """
+    sockopt = options.pop("sockopt", [])
+    sslopt = options.pop("sslopt", {})
+    fire_cont_frame = options.pop("fire_cont_frame", False)
+    enable_multithread = options.pop("enable_multithread", False)
+    skip_utf8_validation = options.pop("skip_utf8_validation", False)
+    websock = class_(sockopt=sockopt, sslopt=sslopt,
+                     fire_cont_frame=fire_cont_frame,
+                     enable_multithread=enable_multithread,
+                     skip_utf8_validation=skip_utf8_validation, **options)
+    websock.settimeout(timeout if timeout is not None else getdefaulttimeout())
+    websock.connect(url, **options)
+    return websock

resources/lib/websocket/_exceptions.py

@@ -0,0 +1,85 @@
+"""
+Define WebSocket exceptions
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+
+class WebSocketException(Exception):
+    """
+    WebSocket exception class.
+    """
+    pass
+
+
+class WebSocketProtocolException(WebSocketException):
+    """
+    If the WebSocket protocol is invalid, this exception will be raised.
+    """
+    pass
+
+
+class WebSocketPayloadException(WebSocketException):
+    """
+    If the WebSocket payload is invalid, this exception will be raised.
+    """
+    pass
+
+
+class WebSocketConnectionClosedException(WebSocketException):
+    """
+    If remote host closed the connection or some network error happened,
+    this exception will be raised.
+    """
+    pass
+
+
+class WebSocketTimeoutException(WebSocketException):
+    """
+    WebSocketTimeoutException will be raised at socket timeout during read/write data.
+    """
+    pass
+
+
+class WebSocketProxyException(WebSocketException):
+    """
+    WebSocketProxyException will be raised when proxy error occurred.
+    """
+    pass
+
+
+class WebSocketBadStatusException(WebSocketException):
+    """
+    WebSocketBadStatusException will be raised when we get bad handshake status code.
+    """
+
+    def __init__(self, message, status_code, status_message=None, resp_headers=None):
+        msg = message % (status_code, status_message)
+        super(WebSocketBadStatusException, self).__init__(msg)
+        self.status_code = status_code
+        self.resp_headers = resp_headers
+
+
+class WebSocketAddressException(WebSocketException):
+    """
+    If the websocket address info cannot be found, this exception will be raised.
+    """
+    pass

resources/lib/websocket/_handshake.py

@@ -0,0 +1,211 @@
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import hashlib
+import hmac
+import os
+
+import six
+
+from ._cookiejar import SimpleCookieJar
+from ._exceptions import *
+from ._http import *
+from ._logging import *
+from ._socket import *
+
+if hasattr(six, 'PY3') and six.PY3:
+    from base64 import encodebytes as base64encode
+else:
+    from base64 import encodestring as base64encode
+
+if hasattr(six, 'PY3') and six.PY3:
+    if hasattr(six, 'PY34') and six.PY34:
+        from http import client as HTTPStatus
+    else:
+        from http import HTTPStatus
+else:
+    import httplib as HTTPStatus
+
+__all__ = ["handshake_response", "handshake", "SUPPORTED_REDIRECT_STATUSES"]
+
+if hasattr(hmac, "compare_digest"):
+    compare_digest = hmac.compare_digest
+else:
+    def compare_digest(s1, s2):
+        return s1 == s2
+
+# websocket supported version.
+VERSION = 13
+
+SUPPORTED_REDIRECT_STATUSES = (HTTPStatus.MOVED_PERMANENTLY, HTTPStatus.FOUND, HTTPStatus.SEE_OTHER,)
+SUCCESS_STATUSES = SUPPORTED_REDIRECT_STATUSES + (HTTPStatus.SWITCHING_PROTOCOLS,)
+
+CookieJar = SimpleCookieJar()
+
+
+class handshake_response(object):
+
+    def __init__(self, status, headers, subprotocol):
+        self.status = status
+        self.headers = headers
+        self.subprotocol = subprotocol
+        CookieJar.add(headers.get("set-cookie"))
+
+
+def handshake(sock, hostname, port, resource, **options):
+    headers, key = _get_handshake_headers(resource, hostname, port, options)
+
+    header_str = "\r\n".join(headers)
+    send(sock, header_str)
+    dump("request header", header_str)
+
+    status, resp = _get_resp_headers(sock)
+    if status in SUPPORTED_REDIRECT_STATUSES:
+        return handshake_response(status, resp, None)
+    success, subproto = _validate(resp, key, options.get("subprotocols"))
+    if not success:
+        raise WebSocketException("Invalid WebSocket Header")
+
+    return handshake_response(status, resp, subproto)
+
+
+def _pack_hostname(hostname):
+    # IPv6 address
+    if ':' in hostname:
+        return '[' + hostname + ']'
+
+    return hostname
+
+def _get_handshake_headers(resource, host, port, options):
+    headers = [
+        "GET %s HTTP/1.1" % resource,
+        "Upgrade: websocket"
+    ]
+    if port == 80 or port == 443:
+        hostport = _pack_hostname(host)
+    else:
+        hostport = "%s:%d" % (_pack_hostname(host), port)
+    if "host" in options and options["host"] is not None:
+        headers.append("Host: %s" % options["host"])
+    else:
+        headers.append("Host: %s" % hostport)
+
+    if "suppress_origin" not in options or not options["suppress_origin"]:
+        if "origin" in options and options["origin"] is not None:
+            headers.append("Origin: %s" % options["origin"])
+        else:
+            headers.append("Origin: http://%s" % hostport)
+
+    key = _create_sec_websocket_key()
+
+    # Append Sec-WebSocket-Key & Sec-WebSocket-Version if not manually specified
+    if not 'header' in options or 'Sec-WebSocket-Key' not in options['header']:
+        key = _create_sec_websocket_key()
+        headers.append("Sec-WebSocket-Key: %s" % key)
+    else:
+        key = options['header']['Sec-WebSocket-Key']
+
+    if not 'header' in options or 'Sec-WebSocket-Version' not in options['header']:
+        headers.append("Sec-WebSocket-Version: %s" % VERSION)
+
+    if not 'connection' in options or options['connection'] is None:
+        headers.append('Connection: Upgrade')
+    else:
+        headers.append(options['connection'])
+
+    subprotocols = options.get("subprotocols")
+    if subprotocols:
+        headers.append("Sec-WebSocket-Protocol: %s" % ",".join(subprotocols))
+
+    if "header" in options:
+        header = options["header"]
+        if isinstance(header, dict):
+            header = [
+                ": ".join([k, v])
+                for k, v in header.items()
+                if v is not None
+            ]
+        headers.extend(header)
+
+    server_cookie = CookieJar.get(host)
+    client_cookie = options.get("cookie", None)
+
+    cookie = "; ".join(filter(None, [server_cookie, client_cookie]))
+
+    if cookie:
+        headers.append("Cookie: %s" % cookie)
+
+    headers.append("")
+    headers.append("")
+
+    return headers, key
+
+
+def _get_resp_headers(sock, success_statuses=SUCCESS_STATUSES):
+    status, resp_headers, status_message = read_headers(sock)
+    if status not in success_statuses:
+        raise WebSocketBadStatusException("Handshake status %d %s", status, status_message, resp_headers)
+    return status, resp_headers
+
+
+_HEADERS_TO_CHECK = {
+    "upgrade": "websocket",
+    "connection": "upgrade",
+}
+
+
+def _validate(headers, key, subprotocols):
+    subproto = None
+    for k, v in _HEADERS_TO_CHECK.items():
+        r = headers.get(k, None)
+        if not r:
+            return False, None
+        r = r.lower()
+        if v != r:
+            return False, None
+
+    if subprotocols:
+        subproto = headers.get("sec-websocket-protocol", None)
+        if not subproto or subproto.lower() not in [s.lower() for s in subprotocols]:
+            error("Invalid subprotocol: " + str(subprotocols))
+            return False, None
+        subproto = subproto.lower()
+
+    result = headers.get("sec-websocket-accept", None)
+    if not result:
+        return False, None
+    result = result.lower()
+
+    if isinstance(result, six.text_type):
+        result = result.encode('utf-8')
+
+    value = (key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11").encode('utf-8')
+    hashed = base64encode(hashlib.sha1(value).digest()).strip().lower()
+    success = compare_digest(hashed, result)
+
+    if success:
+        return True, subproto
+    else:
+        return False, None
+
+
+def _create_sec_websocket_key():
+    randomness = os.urandom(16)
+    return base64encode(randomness).decode('utf-8').strip()

resources/lib/websocket/_http.py

@@ -0,0 +1,329 @@
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import errno
+import os
+import socket
+import sys
+
+import six
+
+from ._exceptions import *
+from ._logging import *
+from ._socket import*
+from ._ssl_compat import *
+from ._url import *
+
+if six.PY3:
+    from base64 import encodebytes as base64encode
+else:
+    from base64 import encodestring as base64encode
+
+__all__ = ["proxy_info", "connect", "read_headers"]
+
+try:
+    import socks
+    ProxyConnectionError = socks.ProxyConnectionError
+    HAS_PYSOCKS = True
+except:
+    class ProxyConnectionError(BaseException):
+        pass
+    HAS_PYSOCKS = False
+
+class proxy_info(object):
+
+    def __init__(self, **options):
+        self.type = options.get("proxy_type") or "http"
+        if not(self.type in ['http', 'socks4', 'socks5', 'socks5h']):
+            raise ValueError("proxy_type must be 'http', 'socks4', 'socks5' or 'socks5h'")
+        self.host = options.get("http_proxy_host", None)
+        if self.host:
+            self.port = options.get("http_proxy_port", 0)
+            self.auth = options.get("http_proxy_auth", None)
+            self.no_proxy = options.get("http_no_proxy", None)
+        else:
+            self.port = 0
+            self.auth = None
+            self.no_proxy = None
+
+
+def _open_proxied_socket(url, options, proxy):
+    hostname, port, resource, is_secure = parse_url(url)
+
+    if not HAS_PYSOCKS:
+        raise WebSocketException("PySocks module not found.")
+
+    ptype = socks.SOCKS5
+    rdns = False
+    if proxy.type == "socks4":
+        ptype = socks.SOCKS4
+    if proxy.type == "http":
+        ptype = socks.HTTP
+    if proxy.type[-1] == "h":
+        rdns = True
+
+    sock = socks.create_connection(
+            (hostname, port),
+            proxy_type = ptype,
+            proxy_addr = proxy.host,
+            proxy_port = proxy.port,
+            proxy_rdns = rdns,
+            proxy_username = proxy.auth[0] if proxy.auth else None,
+            proxy_password = proxy.auth[1] if proxy.auth else None,
+            timeout = options.timeout,
+            socket_options = DEFAULT_SOCKET_OPTION + options.sockopt
+    )
+
+    if is_secure:
+        if HAVE_SSL:
+            sock = _ssl_socket(sock, options.sslopt, hostname)
+        else:
+            raise WebSocketException("SSL not available.")
+
+    return sock, (hostname, port, resource)
+
+
+def connect(url, options, proxy, socket):
+    if proxy.host and not socket and not (proxy.type == 'http'):
+        return _open_proxied_socket(url, options, proxy)
+
+    hostname, port, resource, is_secure = parse_url(url)
+
+    if socket:
+        return socket, (hostname, port, resource)
+
+    addrinfo_list, need_tunnel, auth = _get_addrinfo_list(
+        hostname, port, is_secure, proxy)
+    if not addrinfo_list:
+        raise WebSocketException(
+            "Host not found.: " + hostname + ":" + str(port))
+
+    sock = None
+    try:
+        sock = _open_socket(addrinfo_list, options.sockopt, options.timeout)
+        if need_tunnel:
+            sock = _tunnel(sock, hostname, port, auth)
+
+        if is_secure:
+            if HAVE_SSL:
+                sock = _ssl_socket(sock, options.sslopt, hostname)
+            else:
+                raise WebSocketException("SSL not available.")
+
+        return sock, (hostname, port, resource)
+    except:
+        if sock:
+            sock.close()
+        raise
+
+
+def _get_addrinfo_list(hostname, port, is_secure, proxy):
+    phost, pport, pauth = get_proxy_info(
+        hostname, is_secure, proxy.host, proxy.port, proxy.auth, proxy.no_proxy)
+    try:
+        # when running on windows 10, getaddrinfo without socktype returns a socktype 0.
+        # This generates an error exception: `_on_error: exception Socket type must be stream or datagram, not 0`
+        # or `OSError: [Errno 22] Invalid argument` when creating socket. Force the socket type to SOCK_STREAM.
+        if not phost:
+            addrinfo_list = socket.getaddrinfo(
+                hostname, port, 0, socket.SOCK_STREAM, socket.SOL_TCP)
+            return addrinfo_list, False, None
+        else:
+            pport = pport and pport or 80
+            # when running on windows 10, the getaddrinfo used above
+            # returns a socktype 0. This generates an error exception:
+            # _on_error: exception Socket type must be stream or datagram, not 0
+            # Force the socket type to SOCK_STREAM
+            addrinfo_list = socket.getaddrinfo(phost, pport, 0, socket.SOCK_STREAM, socket.SOL_TCP)
+            return addrinfo_list, True, pauth
+    except socket.gaierror as e:
+        raise WebSocketAddressException(e)
+
+
+def _open_socket(addrinfo_list, sockopt, timeout):
+    err = None
+    for addrinfo in addrinfo_list:
+        family, socktype, proto = addrinfo[:3]
+        sock = socket.socket(family, socktype, proto)
+        sock.settimeout(timeout)
+        for opts in DEFAULT_SOCKET_OPTION:
+            sock.setsockopt(*opts)
+        for opts in sockopt:
+            sock.setsockopt(*opts)
+
+        address = addrinfo[4]
+        err = None
+        while not err:
+            try:
+                sock.connect(address)
+            except ProxyConnectionError as error:
+                err = WebSocketProxyException(str(error))
+                err.remote_ip = str(address[0])
+                continue
+            except socket.error as error:
+                error.remote_ip = str(address[0])
+                try:
+                    eConnRefused = (errno.ECONNREFUSED, errno.WSAECONNREFUSED)
+                except:
+                    eConnRefused = (errno.ECONNREFUSED, )
+                if error.errno == errno.EINTR:
+                    continue
+                elif error.errno in eConnRefused:
+                    err = error
+                    continue
+                else:
+                    raise error
+            else:
+                break
+        else:
+            continue
+        break
+    else:
+        if err:
+            raise err
+
+    return sock
+
+
+def _can_use_sni():
+    return six.PY2 and sys.version_info >= (2, 7, 9) or sys.version_info >= (3, 2)
+
+
+def _wrap_sni_socket(sock, sslopt, hostname, check_hostname):
+    context = ssl.SSLContext(sslopt.get('ssl_version', ssl.PROTOCOL_SSLv23))
+
+    if sslopt.get('cert_reqs', ssl.CERT_NONE) != ssl.CERT_NONE:
+        cafile = sslopt.get('ca_certs', None)
+        capath = sslopt.get('ca_cert_path', None)
+        if cafile or capath:
+            context.load_verify_locations(cafile=cafile, capath=capath)
+        elif hasattr(context, 'load_default_certs'):
+            context.load_default_certs(ssl.Purpose.SERVER_AUTH)
+    if sslopt.get('certfile', None):
+        context.load_cert_chain(
+            sslopt['certfile'],
+            sslopt.get('keyfile', None),
+            sslopt.get('password', None),
+        )
+    # see
+    # https://github.com/liris/websocket-client/commit/b96a2e8fa765753e82eea531adb19716b52ca3ca#commitcomment-10803153
+    context.verify_mode = sslopt['cert_reqs']
+    if HAVE_CONTEXT_CHECK_HOSTNAME:
+        context.check_hostname = check_hostname
+    if 'ciphers' in sslopt:
+        context.set_ciphers(sslopt['ciphers'])
+    if 'cert_chain' in sslopt:
+        certfile, keyfile, password = sslopt['cert_chain']
+        context.load_cert_chain(certfile, keyfile, password)
+    if 'ecdh_curve' in sslopt:
+        context.set_ecdh_curve(sslopt['ecdh_curve'])
+
+    return context.wrap_socket(
+        sock,
+        do_handshake_on_connect=sslopt.get('do_handshake_on_connect', True),
+        suppress_ragged_eofs=sslopt.get('suppress_ragged_eofs', True),
+        server_hostname=hostname,
+    )
+
+
+def _ssl_socket(sock, user_sslopt, hostname):
+    sslopt = dict(cert_reqs=ssl.CERT_REQUIRED)
+    sslopt.update(user_sslopt)
+
+    certPath = os.environ.get('WEBSOCKET_CLIENT_CA_BUNDLE')
+    if certPath and os.path.isfile(certPath) \
+            and user_sslopt.get('ca_certs', None) is None \
+            and user_sslopt.get('ca_cert', None) is None:
+        sslopt['ca_certs'] = certPath
+    elif certPath and os.path.isdir(certPath) \
+            and user_sslopt.get('ca_cert_path', None) is None:
+        sslopt['ca_cert_path'] = certPath
+
+    check_hostname = sslopt["cert_reqs"] != ssl.CERT_NONE and sslopt.pop(
+        'check_hostname', True)
+
+    if _can_use_sni():
+        sock = _wrap_sni_socket(sock, sslopt, hostname, check_hostname)
+    else:
+        sslopt.pop('check_hostname', True)
+        sock = ssl.wrap_socket(sock, **sslopt)
+
+    if not HAVE_CONTEXT_CHECK_HOSTNAME and check_hostname:
+        match_hostname(sock.getpeercert(), hostname)
+
+    return sock
+
+
+def _tunnel(sock, host, port, auth):
+    debug("Connecting proxy...")
+    connect_header = "CONNECT %s:%d HTTP/1.0\r\n" % (host, port)
+    # TODO: support digest auth.
+    if auth and auth[0]:
+        auth_str = auth[0]
+        if auth[1]:
+            auth_str += ":" + auth[1]
+        encoded_str = base64encode(auth_str.encode()).strip().decode().replace('\n', '')
+        connect_header += "Proxy-Authorization: Basic %s\r\n" % encoded_str
+    connect_header += "\r\n"
+    dump("request header", connect_header)
+
+    send(sock, connect_header)
+
+    try:
+        status, resp_headers, status_message = read_headers(sock)
+    except Exception as e:
+        raise WebSocketProxyException(str(e))
+
+    if status != 200:
+        raise WebSocketProxyException(
+            "failed CONNECT via proxy status: %r" % status)
+
+    return sock
+
+
+def read_headers(sock):
+    status = None
+    status_message = None
+    headers = {}
+    trace("--- response header ---")
+
+    while True:
+        line = recv_line(sock)
+        line = line.decode('utf-8').strip()
+        if not line:
+            break
+        trace(line)
+        if not status:
+
+            status_info = line.split(" ", 2)
+            status = int(status_info[1])
+            if len(status_info) > 2:
+                status_message = status_info[2]
+        else:
+            kv = line.split(":", 1)
+            if len(kv) == 2:
+                key, value = kv
+                headers[key.lower()] = value.strip()
+            else:
+                raise WebSocketException("Invalid header")
+
+    trace("-----------------------")
+
+    return status, headers, status_message

resources/lib/websocket/_logging.py

@@ -0,0 +1,90 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import logging
+
+_logger = logging.getLogger('websocket')
+try:
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+_logger.addHandler(NullHandler())
+
+_traceEnabled = False
+
+__all__ = ["enableTrace", "dump", "error", "warning", "debug", "trace",
+           "isEnabledForError", "isEnabledForDebug", "isEnabledForTrace"]
+
+
+def enableTrace(traceable, handler = logging.StreamHandler()):
+    """
+    Turn on/off the traceability.
+
+    Parameters
+    ----------
+    traceable: bool
+        If set to True, traceability is enabled.
+    """
+    global _traceEnabled
+    _traceEnabled = traceable
+    if traceable:
+        _logger.addHandler(handler)
+        _logger.setLevel(logging.DEBUG)
+
+def dump(title, message):
+    if _traceEnabled:
+        _logger.debug("--- " + title + " ---")
+        _logger.debug(message)
+        _logger.debug("-----------------------")
+
+
+def error(msg):
+    _logger.error(msg)
+
+
+def warning(msg):
+    _logger.warning(msg)
+
+
+def debug(msg):
+    _logger.debug(msg)
+
+
+def trace(msg):
+    if _traceEnabled:
+        _logger.debug(msg)
+
+
+def isEnabledForError():
+    return _logger.isEnabledFor(logging.ERROR)
+
+
+def isEnabledForDebug():
+    return _logger.isEnabledFor(logging.DEBUG)
+
+def isEnabledForTrace():
+    return _traceEnabled

resources/lib/websocket/_socket.py

@@ -0,0 +1,177 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import errno
+import select
+import socket
+
+import six
+import sys
+
+from ._exceptions import *
+from ._ssl_compat import *
+from ._utils import *
+
+DEFAULT_SOCKET_OPTION = [(socket.SOL_TCP, socket.TCP_NODELAY, 1)]
+if hasattr(socket, "SO_KEEPALIVE"):
+    DEFAULT_SOCKET_OPTION.append((socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1))
+if hasattr(socket, "TCP_KEEPIDLE"):
+    DEFAULT_SOCKET_OPTION.append((socket.SOL_TCP, socket.TCP_KEEPIDLE, 30))
+if hasattr(socket, "TCP_KEEPINTVL"):
+    DEFAULT_SOCKET_OPTION.append((socket.SOL_TCP, socket.TCP_KEEPINTVL, 10))
+if hasattr(socket, "TCP_KEEPCNT"):
+    DEFAULT_SOCKET_OPTION.append((socket.SOL_TCP, socket.TCP_KEEPCNT, 3))
+
+_default_timeout = None
+
+__all__ = ["DEFAULT_SOCKET_OPTION", "sock_opt", "setdefaulttimeout", "getdefaulttimeout",
+           "recv", "recv_line", "send"]
+
+
+class sock_opt(object):
+
+    def __init__(self, sockopt, sslopt):
+        if sockopt is None:
+            sockopt = []
+        if sslopt is None:
+            sslopt = {}
+        self.sockopt = sockopt
+        self.sslopt = sslopt
+        self.timeout = None
+
+
+def setdefaulttimeout(timeout):
+    """
+    Set the global timeout setting to connect.
+
+    Parameters
+    ----------
+    timeout: int or float
+        default socket timeout time (in seconds)
+    """
+    global _default_timeout
+    _default_timeout = timeout
+
+
+def getdefaulttimeout():
+    """
+    Get default timeout
+
+    Returns
+    ----------
+    _default_timeout: int or float
+        Return the global timeout setting (in seconds) to connect.
+    """
+    return _default_timeout
+
+
+def recv(sock, bufsize):
+    if not sock:
+        raise WebSocketConnectionClosedException("socket is already closed.")
+
+    def _recv():
+        try:
+            return sock.recv(bufsize)
+        except SSLWantReadError:
+            pass
+        except socket.error as exc:
+            error_code = extract_error_code(exc)
+            if error_code is None:
+                raise
+            if error_code != errno.EAGAIN or error_code != errno.EWOULDBLOCK:
+                raise
+
+        r, w, e = select.select((sock, ), (), (), sock.gettimeout())
+        if r:
+            return sock.recv(bufsize)
+
+    try:
+        if sock.gettimeout() == 0:
+            bytes_ = sock.recv(bufsize)
+        else:
+            bytes_ = _recv()
+    except socket.timeout as e:
+        message = extract_err_message(e)
+        raise WebSocketTimeoutException(message)
+    except SSLError as e:
+        message = extract_err_message(e)
+        if isinstance(message, str) and 'timed out' in message:
+            raise WebSocketTimeoutException(message)
+        else:
+            raise
+
+    if not bytes_:
+        raise WebSocketConnectionClosedException(
+            "Connection is already closed.")
+
+    return bytes_
+
+
+def recv_line(sock):
+    line = []
+    while True:
+        c = recv(sock, 1)
+        line.append(c)
+        if c == six.b("\n"):
+            break
+    return six.b("").join(line)
+
+
+def send(sock, data):
+    if isinstance(data, six.text_type):
+        data = data.encode('utf-8')
+
+    if not sock:
+        raise WebSocketConnectionClosedException("socket is already closed.")
+
+    def _send():
+        try:
+            return sock.send(data)
+        except SSLWantWriteError:
+            pass
+        except socket.error as exc:
+            error_code = extract_error_code(exc)
+            if error_code is None:
+                raise
+            if error_code != errno.EAGAIN or error_code != errno.EWOULDBLOCK:
+                raise
+
+        r, w, e = select.select((), (sock, ), (), sock.gettimeout())
+        if w:
+            return sock.send(data)
+
+    try:
+        if sock.gettimeout() == 0:
+            return sock.send(data)
+        else:
+            return _send()
+    except socket.timeout as e:
+        message = extract_err_message(e)
+        raise WebSocketTimeoutException(message)
+    except Exception as e:
+        message = extract_err_message(e)
+        if isinstance(message, str) and "timed out" in message:
+            raise WebSocketTimeoutException(message)
+        else:
+            raise

resources/lib/websocket/_ssl_compat.py

@@ -0,0 +1,53 @@
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+__all__ = ["HAVE_SSL", "ssl", "SSLError", "SSLWantReadError", "SSLWantWriteError"]
+
+try:
+    import ssl
+    from ssl import SSLError
+    from ssl import SSLWantReadError
+    from ssl import SSLWantWriteError
+    if hasattr(ssl, 'SSLContext') and hasattr(ssl.SSLContext, 'check_hostname'):
+        HAVE_CONTEXT_CHECK_HOSTNAME = True
+    else:
+        HAVE_CONTEXT_CHECK_HOSTNAME = False
+        if hasattr(ssl, "match_hostname"):
+            from ssl import match_hostname
+        else:
+            from backports.ssl_match_hostname import match_hostname
+        __all__.append("match_hostname")
+    __all__.append("HAVE_CONTEXT_CHECK_HOSTNAME")
+
+    HAVE_SSL = True
+except ImportError:
+    # dummy class of SSLError for ssl none-support environment.
+    class SSLError(Exception):
+        pass
+
+    class SSLWantReadError(Exception):
+        pass
+
+    class SSLWantWriteError(Exception):
+        pass
+
+    ssl = lambda: None
+
+    HAVE_SSL = False

resources/lib/websocket/_url.py

@@ -0,0 +1,172 @@
+"""
+
+"""
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+
+import os
+import socket
+import struct
+
+from six.moves.urllib.parse import urlparse
+
+
+__all__ = ["parse_url", "get_proxy_info"]
+
+
+def parse_url(url):
+    """
+    parse url and the result is tuple of
+    (hostname, port, resource path and the flag of secure mode)
+
+    Parameters
+    ----------
+    url: str
+        url string.
+    """
+    if ":" not in url:
+        raise ValueError("url is invalid")
+
+    scheme, url = url.split(":", 1)
+
+    parsed = urlparse(url, scheme="ws")
+    if parsed.hostname:
+        hostname = parsed.hostname
+    else:
+        raise ValueError("hostname is invalid")
+    port = 0
+    if parsed.port:
+        port = parsed.port
+
+    is_secure = False
+    if scheme == "ws":
+        if not port:
+            port = 80
+    elif scheme == "wss":
+        is_secure = True
+        if not port:
+            port = 443
+    else:
+        raise ValueError("scheme %s is invalid" % scheme)
+
+    if parsed.path:
+        resource = parsed.path
+    else:
+        resource = "/"
+
+    if parsed.query:
+        resource += "?" + parsed.query
+
+    return hostname, port, resource, is_secure
+
+
+DEFAULT_NO_PROXY_HOST = ["localhost", "127.0.0.1"]
+
+
+def _is_ip_address(addr):
+    try:
+        socket.inet_aton(addr)
+    except socket.error:
+        return False
+    else:
+        return True
+
+
+def _is_subnet_address(hostname):
+    try:
+        addr, netmask = hostname.split("/")
+        return _is_ip_address(addr) and 0 <= int(netmask) < 32
+    except ValueError:
+        return False
+
+
+def _is_address_in_network(ip, net):
+    ipaddr = struct.unpack('I', socket.inet_aton(ip))[0]
+    netaddr, bits = net.split('/')
+    netmask = struct.unpack('I', socket.inet_aton(netaddr))[0] & ((2 << int(bits) - 1) - 1)
+    return ipaddr & netmask == netmask
+
+
+def _is_no_proxy_host(hostname, no_proxy):
+    if not no_proxy:
+        v = os.environ.get("no_proxy", "").replace(" ", "")
+        if v:
+            no_proxy = v.split(",")
+    if not no_proxy:
+        no_proxy = DEFAULT_NO_PROXY_HOST
+
+    if hostname in no_proxy:
+        return True
+    elif _is_ip_address(hostname):
+        return any([_is_address_in_network(hostname, subnet) for subnet in no_proxy if _is_subnet_address(subnet)])
+
+    return False
+
+
+def get_proxy_info(
+        hostname, is_secure, proxy_host=None, proxy_port=0, proxy_auth=None,
+        no_proxy=None, proxy_type='http'):
+    """
+    Try to retrieve proxy host and port from environment
+    if not provided in options.
+    Result is (proxy_host, proxy_port, proxy_auth).
+    proxy_auth is tuple of username and password
+    of proxy authentication information.
+
+    Parameters
+    ----------
+    hostname: <type>
+        websocket server name.
+    is_secure: <type>
+        is the connection secure? (wss) looks for "https_proxy" in env
+        before falling back to "http_proxy"
+    options: <type>
+        - http_proxy_host: <type>
+            http proxy host name.
+        - http_proxy_port: <type>
+            http proxy port.
+        - http_no_proxy: <type>
+            host names, which doesn't use proxy.
+        - http_proxy_auth: <type>
+            http proxy auth information. tuple of username and password. default is None
+        - proxy_type: <type>
+            if set to "socks5" PySocks wrapper will be used in place of a http proxy. default is "http"
+    """
+    if _is_no_proxy_host(hostname, no_proxy):
+        return None, 0, None
+
+    if proxy_host:
+        port = proxy_port
+        auth = proxy_auth
+        return proxy_host, port, auth
+
+    env_keys = ["http_proxy"]
+    if is_secure:
+        env_keys.insert(0, "https_proxy")
+
+    for key in env_keys:
+        value = os.environ.get(key, None)
+        if value:
+            proxy = urlparse(value)
+            auth = (proxy.username, proxy.password) if proxy.username else None
+            return proxy.hostname, proxy.port, auth
+
+    return None, 0, None

resources/lib/websocket/_utils.py

@@ -0,0 +1,110 @@
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import six
+
+__all__ = ["NoLock", "validate_utf8", "extract_err_message", "extract_error_code"]
+
+
+class NoLock(object):
+
+    def __enter__(self):
+        pass
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        pass
+
+
+try:
+    # If wsaccel is available we use compiled routines to validate UTF-8
+    # strings.
+    from wsaccel.utf8validator import Utf8Validator
+
+    def _validate_utf8(utfbytes):
+        return Utf8Validator().validate(utfbytes)[0]
+
+except ImportError:
+    # UTF-8 validator
+    # python implementation of http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+
+    _UTF8_ACCEPT = 0
+    _UTF8_REJECT = 12
+
+    _UTF8D = [
+        # The first part of the table maps bytes to character classes that
+        # to reduce the size of the transition table and create bitmasks.
+        0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+        0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+        0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+        0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+        1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
+        7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+        8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,  2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
+        10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
+
+        # The second part is a transition table that maps a combination
+        # of a state of the automaton and a character class to a state.
+        0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
+        12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
+        12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
+        12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
+        12,36,12,12,12,12,12,12,12,12,12,12, ]
+
+    def _decode(state, codep, ch):
+        tp = _UTF8D[ch]
+
+        codep = (ch & 0x3f) | (codep << 6) if (
+            state != _UTF8_ACCEPT) else (0xff >> tp) & ch
+        state = _UTF8D[256 + state + tp]
+
+        return state, codep
+
+    def _validate_utf8(utfbytes):
+        state = _UTF8_ACCEPT
+        codep = 0
+        for i in utfbytes:
+            if six.PY2:
+                i = ord(i)
+            state, codep = _decode(state, codep, i)
+            if state == _UTF8_REJECT:
+                return False
+
+        return True
+
+
+def validate_utf8(utfbytes):
+    """
+    validate utf8 byte string.
+    utfbytes: utf byte string to check.
+    return value: if valid utf8 string, return true. Otherwise, return false.
+    """
+    return _validate_utf8(utfbytes)
+
+
+def extract_err_message(exception):
+    if exception.args:
+        return exception.args[0]
+    else:
+        return None
+
+
+def extract_error_code(exception):
+    if exception.args and len(exception.args) > 1:
+        return exception.args[0] if isinstance(exception.args[0], int) else None

resources/lib/websocket/tests/data/header01.txt

@@ -0,0 +1,6 @@
+HTTP/1.1 101 WebSocket Protocol Handshake
+Connection: Upgrade 
+Upgrade: WebSocket
+Sec-WebSocket-Accept: Kxep+hNu9n51529fGidYu7a3wO0=
+some_header: something
+

resources/lib/websocket/tests/data/header02.txt

@@ -0,0 +1,6 @@
+HTTP/1.1 101 WebSocket Protocol Handshake
+Connection: Upgrade
+Upgrade WebSocket
+Sec-WebSocket-Accept: Kxep+hNu9n51529fGidYu7a3wO0=
+some_header: something
+

resources/lib/websocket/tests/test_cookiejar.py

@@ -0,0 +1,122 @@
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+import unittest
+
+from websocket._cookiejar import SimpleCookieJar
+
+try:
+    import Cookie
+except:
+    import http.cookies as Cookie
+
+
+class CookieJarTest(unittest.TestCase):
+    def testAdd(self):
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("")
+        self.assertFalse(cookie_jar.jar, "Cookie with no domain should not be added to the jar")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b")
+        self.assertFalse(cookie_jar.jar, "Cookie with no domain should not be added to the jar")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; domain=.abc")
+        self.assertTrue(".abc" in cookie_jar.jar)
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; domain=abc")
+        self.assertTrue(".abc" in cookie_jar.jar)
+        self.assertTrue("abc" not in cookie_jar.jar)
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; c=d; domain=abc")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; c=d; domain=abc")
+        cookie_jar.add("e=f; domain=abc")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d; e=f")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; c=d; domain=abc")
+        cookie_jar.add("e=f; domain=.abc")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d; e=f")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.add("a=b; c=d; domain=abc")
+        cookie_jar.add("e=f; domain=xyz")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("xyz"), "e=f")
+        self.assertEqual(cookie_jar.get("something"), "")
+
+    def testSet(self):
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b")
+        self.assertFalse(cookie_jar.jar, "Cookie with no domain should not be added to the jar")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; domain=.abc")
+        self.assertTrue(".abc" in cookie_jar.jar)
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; domain=abc")
+        self.assertTrue(".abc" in cookie_jar.jar)
+        self.assertTrue("abc" not in cookie_jar.jar)
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; c=d; domain=abc")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; c=d; domain=abc")
+        cookie_jar.set("e=f; domain=abc")
+        self.assertEqual(cookie_jar.get("abc"), "e=f")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; c=d; domain=abc")
+        cookie_jar.set("e=f; domain=.abc")
+        self.assertEqual(cookie_jar.get("abc"), "e=f")
+
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; c=d; domain=abc")
+        cookie_jar.set("e=f; domain=xyz")
+        self.assertEqual(cookie_jar.get("abc"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("xyz"), "e=f")
+        self.assertEqual(cookie_jar.get("something"), "")
+
+    def testGet(self):
+        cookie_jar = SimpleCookieJar()
+        cookie_jar.set("a=b; c=d; domain=abc.com")
+        self.assertEqual(cookie_jar.get("abc.com"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("x.abc.com"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("abc.com.es"), "")
+        self.assertEqual(cookie_jar.get("xabc.com"), "")
+
+        cookie_jar.set("a=b; c=d; domain=.abc.com")
+        self.assertEqual(cookie_jar.get("abc.com"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("x.abc.com"), "a=b; c=d")
+        self.assertEqual(cookie_jar.get("abc.com.es"), "")
+        self.assertEqual(cookie_jar.get("xabc.com"), "")

resources/lib/websocket/tests/test_websocket.py

@@ -0,0 +1,691 @@
+# -*- coding: utf-8 -*-
+#
+"""
+
+"""
+
+"""
+websocket - WebSocket client library for Python
+
+Copyright (C) 2010 Hiroki Ohtani(liris)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+"""
+
+import sys
+sys.path[0:0] = [""]
+
+import os
+import os.path
+import socket
+
+import six
+
+# websocket-client
+import websocket as ws
+from websocket._handshake import _create_sec_websocket_key, \
+    _validate as _validate_header
+from websocket._http import read_headers
+from websocket._url import get_proxy_info, parse_url
+from websocket._utils import validate_utf8
+
+if six.PY3:
+    from base64 import decodebytes as base64decode
+else:
+    from base64 import decodestring as base64decode
+
+if sys.version_info[0] == 2 and sys.version_info[1] < 7:
+    import unittest2 as unittest
+else:
+    import unittest
+
+try:
+    from ssl import SSLError
+except ImportError:
+    # dummy class of SSLError for ssl none-support environment.
+    class SSLError(Exception):
+        pass
+
+# Skip test to access the internet.
+TEST_WITH_INTERNET = os.environ.get('TEST_WITH_INTERNET', '0') == '1'
+
+# Skip Secure WebSocket test.
+TEST_SECURE_WS = True
+TRACEABLE = True
+
+
+def create_mask_key(_):
+    return "abcd"
+
+
+class SockMock(object):
+    def __init__(self):
+        self.data = []
+        self.sent = []
+
+    def add_packet(self, data):
+        self.data.append(data)
+
+    def gettimeout(self):
+        return None
+
+    def recv(self, bufsize):
+        if self.data:
+            e = self.data.pop(0)
+            if isinstance(e, Exception):
+                raise e
+            if len(e) > bufsize:
+                self.data.insert(0, e[bufsize:])
+            return e[:bufsize]
+
+    def send(self, data):
+        self.sent.append(data)
+        return len(data)
+
+    def close(self):
+        pass
+
+
+class HeaderSockMock(SockMock):
+
+    def __init__(self, fname):
+        SockMock.__init__(self)
+        path = os.path.join(os.path.dirname(__file__), fname)
+        with open(path, "rb") as f:
+            self.add_packet(f.read())
+
+
+class WebSocketTest(unittest.TestCase):
+    def setUp(self):
+        ws.enableTrace(TRACEABLE)
+
+    def tearDown(self):
+        pass
+
+    def testDefaultTimeout(self):
+        self.assertEqual(ws.getdefaulttimeout(), None)
+        ws.setdefaulttimeout(10)
+        self.assertEqual(ws.getdefaulttimeout(), 10)
+        ws.setdefaulttimeout(None)
+
+    def testParseUrl(self):
+        p = parse_url("ws://www.example.com/r")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 80)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com/r/")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 80)
+        self.assertEqual(p[2], "/r/")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com/")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 80)
+        self.assertEqual(p[2], "/")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 80)
+        self.assertEqual(p[2], "/")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com:8080/r")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com:8080/")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://www.example.com:8080")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("wss://www.example.com:8080/r")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], True)
+
+        p = parse_url("wss://www.example.com:8080/r?key=value")
+        self.assertEqual(p[0], "www.example.com")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/r?key=value")
+        self.assertEqual(p[3], True)
+
+        self.assertRaises(ValueError, parse_url, "http://www.example.com/r")
+
+        if sys.version_info[0] == 2 and sys.version_info[1] < 7:
+            return
+
+        p = parse_url("ws://[2a03:4000:123:83::3]/r")
+        self.assertEqual(p[0], "2a03:4000:123:83::3")
+        self.assertEqual(p[1], 80)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("ws://[2a03:4000:123:83::3]:8080/r")
+        self.assertEqual(p[0], "2a03:4000:123:83::3")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], False)
+
+        p = parse_url("wss://[2a03:4000:123:83::3]/r")
+        self.assertEqual(p[0], "2a03:4000:123:83::3")
+        self.assertEqual(p[1], 443)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], True)
+
+        p = parse_url("wss://[2a03:4000:123:83::3]:8080/r")
+        self.assertEqual(p[0], "2a03:4000:123:83::3")
+        self.assertEqual(p[1], 8080)
+        self.assertEqual(p[2], "/r")
+        self.assertEqual(p[3], True)
+
+    def testWSKey(self):
+        key = _create_sec_websocket_key()
+        self.assertTrue(key != 24)
+        self.assertTrue(six.u("¥n") not in key)
+
+    def testWsUtils(self):
+        key = "c6b8hTg4EeGb2gQMztV1/g=="
+        required_header = {
+            "upgrade": "websocket",
+            "connection": "upgrade",
+            "sec-websocket-accept": "Kxep+hNu9n51529fGidYu7a3wO0=",
+            }
+        self.assertEqual(_validate_header(required_header, key, None), (True, None))
+
+        header = required_header.copy()
+        header["upgrade"] = "http"
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+        del header["upgrade"]
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+
+        header = required_header.copy()
+        header["connection"] = "something"
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+        del header["connection"]
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+
+        header = required_header.copy()
+        header["sec-websocket-accept"] = "something"
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+        del header["sec-websocket-accept"]
+        self.assertEqual(_validate_header(header, key, None), (False, None))
+
+        header = required_header.copy()
+        header["sec-websocket-protocol"] = "sub1"
+        self.assertEqual(_validate_header(header, key, ["sub1", "sub2"]), (True, "sub1"))
+        self.assertEqual(_validate_header(header, key, ["sub2", "sub3"]), (False, None))
+
+        header = required_header.copy()
+        header["sec-websocket-protocol"] = "sUb1"
+        self.assertEqual(_validate_header(header, key, ["Sub1", "suB2"]), (True, "sub1"))
+
+        header = required_header.copy()
+        self.assertEqual(_validate_header(header, key, ["Sub1", "suB2"]), (False, None))
+
+    def testReadHeader(self):
+        status, header, status_message = read_headers(HeaderSockMock("data/header01.txt"))
+        self.assertEqual(status, 101)
+        self.assertEqual(header["connection"], "Upgrade")
+
+        HeaderSockMock("data/header02.txt")
+        self.assertRaises(ws.WebSocketException, read_headers, HeaderSockMock("data/header02.txt"))
+
+    def testSend(self):
+        # TODO: add longer frame data
+        sock = ws.WebSocket()
+        sock.set_mask_key(create_mask_key)
+        s = sock.sock = HeaderSockMock("data/header01.txt")
+        sock.send("Hello")
+        self.assertEqual(s.sent[0], six.b("\x81\x85abcd)\x07\x0f\x08\x0e"))
+
+        sock.send("こんにちは")
+        self.assertEqual(s.sent[1], six.b("\x81\x8fabcd\x82\xe3\xf0\x87\xe3\xf1\x80\xe5\xca\x81\xe2\xc5\x82\xe3\xcc"))
+
+        sock.send(u"こんにちは")
+        self.assertEqual(s.sent[1], six.b("\x81\x8fabcd\x82\xe3\xf0\x87\xe3\xf1\x80\xe5\xca\x81\xe2\xc5\x82\xe3\xcc"))
+
+        sock.send("x" * 127)
+
+    def testRecv(self):
+        # TODO: add longer frame data
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        something = six.b("\x81\x8fabcd\x82\xe3\xf0\x87\xe3\xf1\x80\xe5\xca\x81\xe2\xc5\x82\xe3\xcc")
+        s.add_packet(something)
+        data = sock.recv()
+        self.assertEqual(data, "こんにちは")
+
+        s.add_packet(six.b("\x81\x85abcd)\x07\x0f\x08\x0e"))
+        data = sock.recv()
+        self.assertEqual(data, "Hello")
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testIter(self):
+        count = 2
+        for _ in ws.create_connection('wss://stream.meetup.com/2/rsvps'):
+            count -= 1
+            if count == 0:
+                break
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testNext(self):
+        sock = ws.create_connection('wss://stream.meetup.com/2/rsvps')
+        self.assertEqual(str, type(next(sock)))
+
+    def testInternalRecvStrict(self):
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        s.add_packet(six.b("foo"))
+        s.add_packet(socket.timeout())
+        s.add_packet(six.b("bar"))
+        # s.add_packet(SSLError("The read operation timed out"))
+        s.add_packet(six.b("baz"))
+        with self.assertRaises(ws.WebSocketTimeoutException):
+            sock.frame_buffer.recv_strict(9)
+        # if six.PY2:
+        #     with self.assertRaises(ws.WebSocketTimeoutException):
+        #         data = sock._recv_strict(9)
+        # else:
+        #     with self.assertRaises(SSLError):
+        #         data = sock._recv_strict(9)
+        data = sock.frame_buffer.recv_strict(9)
+        self.assertEqual(data, six.b("foobarbaz"))
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.frame_buffer.recv_strict(1)
+
+    def testRecvTimeout(self):
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        s.add_packet(six.b("\x81"))
+        s.add_packet(socket.timeout())
+        s.add_packet(six.b("\x8dabcd\x29\x07\x0f\x08\x0e"))
+        s.add_packet(socket.timeout())
+        s.add_packet(six.b("\x4e\x43\x33\x0e\x10\x0f\x00\x40"))
+        with self.assertRaises(ws.WebSocketTimeoutException):
+            sock.recv()
+        with self.assertRaises(ws.WebSocketTimeoutException):
+            sock.recv()
+        data = sock.recv()
+        self.assertEqual(data, "Hello, World!")
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.recv()
+
+    def testRecvWithSimpleFragmentation(self):
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        # OPCODE=TEXT, FIN=0, MSG="Brevity is "
+        s.add_packet(six.b("\x01\x8babcd#\x10\x06\x12\x08\x16\x1aD\x08\x11C"))
+        # OPCODE=CONT, FIN=1, MSG="the soul of wit"
+        s.add_packet(six.b("\x80\x8fabcd\x15\n\x06D\x12\r\x16\x08A\r\x05D\x16\x0b\x17"))
+        data = sock.recv()
+        self.assertEqual(data, "Brevity is the soul of wit")
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.recv()
+
+    def testRecvWithFireEventOfFragmentation(self):
+        sock = ws.WebSocket(fire_cont_frame=True)
+        s = sock.sock = SockMock()
+        # OPCODE=TEXT, FIN=0, MSG="Brevity is "
+        s.add_packet(six.b("\x01\x8babcd#\x10\x06\x12\x08\x16\x1aD\x08\x11C"))
+        # OPCODE=CONT, FIN=0, MSG="Brevity is "
+        s.add_packet(six.b("\x00\x8babcd#\x10\x06\x12\x08\x16\x1aD\x08\x11C"))
+        # OPCODE=CONT, FIN=1, MSG="the soul of wit"
+        s.add_packet(six.b("\x80\x8fabcd\x15\n\x06D\x12\r\x16\x08A\r\x05D\x16\x0b\x17"))
+
+        _, data = sock.recv_data()
+        self.assertEqual(data, six.b("Brevity is "))
+        _, data = sock.recv_data()
+        self.assertEqual(data, six.b("Brevity is "))
+        _, data = sock.recv_data()
+        self.assertEqual(data, six.b("the soul of wit"))
+
+        # OPCODE=CONT, FIN=0, MSG="Brevity is "
+        s.add_packet(six.b("\x80\x8babcd#\x10\x06\x12\x08\x16\x1aD\x08\x11C"))
+
+        with self.assertRaises(ws.WebSocketException):
+            sock.recv_data()
+
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.recv()
+
+    def testClose(self):
+        sock = ws.WebSocket()
+        sock.sock = SockMock()
+        sock.connected = True
+        sock.close()
+        self.assertEqual(sock.connected, False)
+
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        sock.connected = True
+        s.add_packet(six.b('\x88\x80\x17\x98p\x84'))
+        sock.recv()
+        self.assertEqual(sock.connected, False)
+
+    def testRecvContFragmentation(self):
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        # OPCODE=CONT, FIN=1, MSG="the soul of wit"
+        s.add_packet(six.b("\x80\x8fabcd\x15\n\x06D\x12\r\x16\x08A\r\x05D\x16\x0b\x17"))
+        self.assertRaises(ws.WebSocketException, sock.recv)
+
+    def testRecvWithProlongedFragmentation(self):
+        sock = ws.WebSocket()
+        s = sock.sock = SockMock()
+        # OPCODE=TEXT, FIN=0, MSG="Once more unto the breach, "
+        s.add_packet(six.b("\x01\x9babcd.\x0c\x00\x01A\x0f\x0c\x16\x04B\x16\n\x15"
+                           "\rC\x10\t\x07C\x06\x13\x07\x02\x07\tNC"))
+        # OPCODE=CONT, FIN=0, MSG="dear friends, "
+        s.add_packet(six.b("\x00\x8eabcd\x05\x07\x02\x16A\x04\x11\r\x04\x0c\x07"
+                           "\x17MB"))
+        # OPCODE=CONT, FIN=1, MSG="once more"
+        s.add_packet(six.b("\x80\x89abcd\x0e\x0c\x00\x01A\x0f\x0c\x16\x04"))
+        data = sock.recv()
+        self.assertEqual(
+            data,
+            "Once more unto the breach, dear friends, once more")
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.recv()
+
+    def testRecvWithFragmentationAndControlFrame(self):
+        sock = ws.WebSocket()
+        sock.set_mask_key(create_mask_key)
+        s = sock.sock = SockMock()
+        # OPCODE=TEXT, FIN=0, MSG="Too much "
+        s.add_packet(six.b("\x01\x89abcd5\r\x0cD\x0c\x17\x00\x0cA"))
+        # OPCODE=PING, FIN=1, MSG="Please PONG this"
+        s.add_packet(six.b("\x89\x90abcd1\x0e\x06\x05\x12\x07C4.,$D\x15\n\n\x17"))
+        # OPCODE=CONT, FIN=1, MSG="of a good thing"
+        s.add_packet(six.b("\x80\x8fabcd\x0e\x04C\x05A\x05\x0c\x0b\x05B\x17\x0c"
+                           "\x08\x0c\x04"))
+        data = sock.recv()
+        self.assertEqual(data, "Too much of a good thing")
+        with self.assertRaises(ws.WebSocketConnectionClosedException):
+            sock.recv()
+        self.assertEqual(
+            s.sent[0],
+            six.b("\x8a\x90abcd1\x0e\x06\x05\x12\x07C4.,$D\x15\n\n\x17"))
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testWebSocket(self):
+        s = ws.create_connection("ws://echo.websocket.org/")
+        self.assertNotEqual(s, None)
+        s.send("Hello, World")
+        result = s.recv()
+        self.assertEqual(result, "Hello, World")
+
+        s.send(u"こにゃにゃちは、世界")
+        result = s.recv()
+        self.assertEqual(result, "こにゃにゃちは、世界")
+        s.close()
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testPingPong(self):
+        s = ws.create_connection("ws://echo.websocket.org/")
+        self.assertNotEqual(s, None)
+        s.ping("Hello")
+        s.pong("Hi")
+        s.close()
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    @unittest.skipUnless(TEST_SECURE_WS, "wss://echo.websocket.org doesn't work well.")
+    def testSecureWebSocket(self):
+        if 1:
+            import ssl
+            s = ws.create_connection("wss://echo.websocket.org/")
+            self.assertNotEqual(s, None)
+            self.assertTrue(isinstance(s.sock, ssl.SSLSocket))
+            s.send("Hello, World")
+            result = s.recv()
+            self.assertEqual(result, "Hello, World")
+            s.send(u"こにゃにゃちは、世界")
+            result = s.recv()
+            self.assertEqual(result, "こにゃにゃちは、世界")
+            s.close()
+        #except:
+        #    pass
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testWebSocketWithCustomHeader(self):
+        s = ws.create_connection("ws://echo.websocket.org/",
+                                 headers={"User-Agent": "PythonWebsocketClient"})
+        self.assertNotEqual(s, None)
+        s.send("Hello, World")
+        result = s.recv()
+        self.assertEqual(result, "Hello, World")
+        s.close()
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testAfterClose(self):
+        s = ws.create_connection("ws://echo.websocket.org/")
+        self.assertNotEqual(s, None)
+        s.close()
+        self.assertRaises(ws.WebSocketConnectionClosedException, s.send, "Hello")
+        self.assertRaises(ws.WebSocketConnectionClosedException, s.recv)
+
+    def testNonce(self):
+        """ WebSocket key should be a random 16-byte nonce.
+        """
+        key = _create_sec_websocket_key()
+        nonce = base64decode(key.encode("utf-8"))
+        self.assertEqual(16, len(nonce))
+
+
+class WebSocketAppTest(unittest.TestCase):
+
+    class NotSetYet(object):
+        """ A marker class for signalling that a value hasn't been set yet.
+        """
+
+    def setUp(self):
+        ws.enableTrace(TRACEABLE)
+
+        WebSocketAppTest.keep_running_open = WebSocketAppTest.NotSetYet()
+        WebSocketAppTest.keep_running_close = WebSocketAppTest.NotSetYet()
+        WebSocketAppTest.get_mask_key_id = WebSocketAppTest.NotSetYet()
+
+    def tearDown(self):
+        WebSocketAppTest.keep_running_open = WebSocketAppTest.NotSetYet()
+        WebSocketAppTest.keep_running_close = WebSocketAppTest.NotSetYet()
+        WebSocketAppTest.get_mask_key_id = WebSocketAppTest.NotSetYet()
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testKeepRunning(self):
+        """ A WebSocketApp should keep running as long as its self.keep_running
+        is not False (in the boolean context).
+        """
+
+        def on_open(self, *args, **kwargs):
+            """ Set the keep_running flag for later inspection and immediately
+            close the connection.
+            """
+            WebSocketAppTest.keep_running_open = self.keep_running
+
+            self.close()
+
+        def on_close(self, *args, **kwargs):
+            """ Set the keep_running flag for the test to use.
+            """
+            WebSocketAppTest.keep_running_close = self.keep_running
+
+        app = ws.WebSocketApp('ws://echo.websocket.org/', on_open=on_open, on_close=on_close)
+        app.run_forever()
+
+        # if numpy is installed, this assertion fail
+        # self.assertFalse(isinstance(WebSocketAppTest.keep_running_open,
+        #                             WebSocketAppTest.NotSetYet))
+
+        # self.assertFalse(isinstance(WebSocketAppTest.keep_running_close,
+        #                             WebSocketAppTest.NotSetYet))
+
+        # self.assertEqual(True, WebSocketAppTest.keep_running_open)
+        # self.assertEqual(False, WebSocketAppTest.keep_running_close)
+
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testSockMaskKey(self):
+        """ A WebSocketApp should forward the received mask_key function down
+        to the actual socket.
+        """
+
+        def my_mask_key_func():
+            pass
+
+        def on_open(self, *args, **kwargs):
+            """ Set the value so the test can use it later on and immediately
+            close the connection.
+            """
+            WebSocketAppTest.get_mask_key_id = id(self.get_mask_key)
+            self.close()
+
+        app = ws.WebSocketApp('ws://echo.websocket.org/', on_open=on_open, get_mask_key=my_mask_key_func)
+        app.run_forever()
+
+        # if numpu is installed, this assertion fail
+        # Note: We can't use 'is' for comparing the functions directly, need to use 'id'.
+        # self.assertEqual(WebSocketAppTest.get_mask_key_id, id(my_mask_key_func))
+
+
+class SockOptTest(unittest.TestCase):
+    @unittest.skipUnless(TEST_WITH_INTERNET, "Internet-requiring tests are disabled")
+    def testSockOpt(self):
+        sockopt = ((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),)
+        s = ws.create_connection("ws://echo.websocket.org", sockopt=sockopt)
+        self.assertNotEqual(s.sock.getsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY), 0)
+        s.close()
+
+
+class UtilsTest(unittest.TestCase):
+    def testUtf8Validator(self):
+        state = validate_utf8(six.b('\xf0\x90\x80\x80'))
+        self.assertEqual(state, True)
+        state = validate_utf8(six.b('\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5\xed\xa0\x80edited'))
+        self.assertEqual(state, False)
+        state = validate_utf8(six.b(''))
+        self.assertEqual(state, True)
+
+
+class ProxyInfoTest(unittest.TestCase):
+    def setUp(self):
+        self.http_proxy = os.environ.get("http_proxy", None)
+        self.https_proxy = os.environ.get("https_proxy", None)
+        if "http_proxy" in os.environ:
+            del os.environ["http_proxy"]
+        if "https_proxy" in os.environ:
+            del os.environ["https_proxy"]
+
+    def tearDown(self):
+        if self.http_proxy:
+            os.environ["http_proxy"] = self.http_proxy
+        elif "http_proxy" in os.environ:
+            del os.environ["http_proxy"]
+
+        if self.https_proxy:
+            os.environ["https_proxy"] = self.https_proxy
+        elif "https_proxy" in os.environ:
+            del os.environ["https_proxy"]
+
+    def testProxyFromArgs(self):
+        self.assertEqual(get_proxy_info("echo.websocket.org", False, proxy_host="localhost"), ("localhost", 0, None))
+        self.assertEqual(get_proxy_info("echo.websocket.org", False, proxy_host="localhost", proxy_port=3128), ("localhost", 3128, None))
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost"), ("localhost", 0, None))
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost", proxy_port=3128), ("localhost", 3128, None))
+
+        self.assertEqual(get_proxy_info("echo.websocket.org", False, proxy_host="localhost", proxy_auth=("a", "b")),
+            ("localhost", 0, ("a", "b")))
+        self.assertEqual(get_proxy_info("echo.websocket.org", False, proxy_host="localhost", proxy_port=3128, proxy_auth=("a", "b")),
+            ("localhost", 3128, ("a", "b")))
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost", proxy_auth=("a", "b")),
+            ("localhost", 0, ("a", "b")))
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost", proxy_port=3128, proxy_auth=("a", "b")),
+            ("localhost", 3128, ("a", "b")))
+
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost", proxy_port=3128, no_proxy=["example.com"], proxy_auth=("a", "b")),
+            ("localhost", 3128, ("a", "b")))
+        self.assertEqual(get_proxy_info("echo.websocket.org", True, proxy_host="localhost", proxy_port=3128, no_proxy=["echo.websocket.org"], proxy_auth=("a", "b")),
+            (None, 0, None))
+
+    def testProxyFromEnv(self):
+        os.environ["http_proxy"] = "http://localhost/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", None, None))
+        os.environ["http_proxy"] = "http://localhost:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", 3128, None))
+
+        os.environ["http_proxy"] = "http://localhost/"
+        os.environ["https_proxy"] = "http://localhost2/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", None, None))
+        os.environ["http_proxy"] = "http://localhost:3128/"
+        os.environ["https_proxy"] = "http://localhost2:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", 3128, None))
+
+        os.environ["http_proxy"] = "http://localhost/"
+        os.environ["https_proxy"] = "http://localhost2/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", True), ("localhost2", None, None))
+        os.environ["http_proxy"] = "http://localhost:3128/"
+        os.environ["https_proxy"] = "http://localhost2:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", True), ("localhost2", 3128, None))
+
+
+        os.environ["http_proxy"] = "http://a:b@localhost/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", None, ("a", "b")))
+        os.environ["http_proxy"] = "http://a:b@localhost:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", 3128, ("a", "b")))
+
+        os.environ["http_proxy"] = "http://a:b@localhost/"
+        os.environ["https_proxy"] = "http://a:b@localhost2/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", None, ("a", "b")))
+        os.environ["http_proxy"] = "http://a:b@localhost:3128/"
+        os.environ["https_proxy"] = "http://a:b@localhost2:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", False), ("localhost", 3128, ("a", "b")))
+
+        os.environ["http_proxy"] = "http://a:b@localhost/"
+        os.environ["https_proxy"] = "http://a:b@localhost2/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", True), ("localhost2", None, ("a", "b")))
+        os.environ["http_proxy"] = "http://a:b@localhost:3128/"
+        os.environ["https_proxy"] = "http://a:b@localhost2:3128/"
+        self.assertEqual(get_proxy_info("echo.websocket.org", True), ("localhost2", 3128, ("a", "b")))
+
+        os.environ["http_proxy"] = "http://a:b@localhost/"
+        os.environ["https_proxy"] = "http://a:b@localhost2/"
+        os.environ["no_proxy"] = "example1.com,example2.com"
+        self.assertEqual(get_proxy_info("example.1.com", True), ("localhost2", None, ("a", "b")))
+        os.environ["http_proxy"] = "http://a:b@localhost:3128/"
+        os.environ["https_proxy"] = "http://a:b@localhost2:3128/"
+        os.environ["no_proxy"] = "example1.com,example2.com, echo.websocket.org"
+        self.assertEqual(get_proxy_info("echo.websocket.org", True), (None, 0, None))
+
+        os.environ["http_proxy"] = "http://a:b@localhost:3128/"
+        os.environ["https_proxy"] = "http://a:b@localhost2:3128/"
+        os.environ["no_proxy"] = "127.0.0.0/8, 192.168.0.0/16"
+        self.assertEqual(get_proxy_info("127.0.0.1", False), (None, 0, None))
+        self.assertEqual(get_proxy_info("192.168.1.1", False), (None, 0, None))
+
+
+if __name__ == "__main__":
+    unittest.main()