# Path: tornado/util.py
# class ObjectDict(dict):
#     def __getattr__(self, name):
#     def __setattr__(self, name, value):
# def import_object(name):
#     def b(s):
#     def b(s):
# def doctests():


import functools
import hashlib
import logging
import struct
import time
import base64
import tornado.escape
import tornado.web
from tornado.util import bytes_type, b
        if headers.get("Upgrade", '').lower() != "websocket" or \
           headers.get("Connection", '').lower() != "upgrade" or \
           not all(map(lambda f: self.request.headers.get(f), fields)):
            raise ValueError("Missing/Invalid WebSocket headers")

    def _calculate_part(self, key):
        """Processes the key headers and calculates their key value.

        Raises ValueError when feed invalid key."""
        number = int(''.join(c for c in key if c.isdigit()))
        spaces = len([c for c in key if c.isspace()])
        try:
            key_number = number // spaces
        except (ValueError, ZeroDivisionError):
            raise ValueError
        return struct.pack(">I", key_number)

    def _generate_challenge_response(self, part_1, part_2, part_3):
        m = hashlib.md5()
        m.update(part_1)
        m.update(part_2)
        m.update(part_3)
        return m.digest()

    def _receive_message(self):
        self.stream.read_bytes(1, self._on_frame_type)

    def _on_frame_type(self, byte):
        frame_type = ord(byte)
        if frame_type == 0x00:

# Path: tornado/util.py
# class ObjectDict(dict):
#     def __getattr__(self, name):
#     def __setattr__(self, name, value):
# def import_object(name):
#     def b(s):
#     def b(s):
# def doctests():


# Path: tornado/websocket.py
import functools
import hashlib
import logging
import struct
import time
import base64
import tornado.escape
import tornado.web
from tornado.util import bytes_type, b

        if headers.get("Upgrade", '').lower() != "websocket" or \
           headers.get("Connection", '').lower() != "upgrade" or \
           not all(map(lambda f: self.request.headers.get(f), fields)):
            raise ValueError("Missing/Invalid WebSocket headers")

    def _calculate_part(self, key):
        """Processes the key headers and calculates their key value.

        Raises ValueError when feed invalid key."""
        number = int(''.join(c for c in key if c.isdigit()))
        spaces = len([c for c in key if c.isspace()])
        try:
            key_number = number // spaces
        except (ValueError, ZeroDivisionError):
            raise ValueError
        return struct.pack(">I", key_number)

    def _generate_challenge_response(self, part_1, part_2, part_3):
        m = hashlib.md5()
        m.update(part_1)
        m.update(part_2)
        m.update(part_3)
        return m.digest()

    def _receive_message(self):
        self.stream.read_bytes(1, self._on_frame_type)

    def _on_frame_type(self, byte):
        frame_type = ord(byte)
        if frame_type == 0x00:

            self.stream.read_until(b("\xff"), self._on_end_delimiter)