mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
160 lines
5.1 KiB
Python
160 lines
5.1 KiB
Python
# Copyright 2011, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Constants indicating WebSocket protocol version.
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VERSION_HIXIE75 = -1
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VERSION_HYBI00 = 0
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VERSION_HYBI01 = 1
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VERSION_HYBI02 = 2
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VERSION_HYBI03 = 2
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VERSION_HYBI04 = 4
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VERSION_HYBI05 = 5
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VERSION_HYBI06 = 6
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VERSION_HYBI07 = 7
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VERSION_HYBI08 = 8
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VERSION_HYBI09 = 8
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VERSION_HYBI10 = 8
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VERSION_HYBI11 = 8
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VERSION_HYBI12 = 8
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VERSION_HYBI13 = 13
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VERSION_HYBI14 = 13
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VERSION_HYBI15 = 13
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VERSION_HYBI16 = 13
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VERSION_HYBI17 = 13
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# Constants indicating WebSocket protocol latest version.
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VERSION_HYBI_LATEST = VERSION_HYBI13
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# Port numbers
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DEFAULT_WEB_SOCKET_PORT = 80
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DEFAULT_WEB_SOCKET_SECURE_PORT = 443
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# Schemes
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WEB_SOCKET_SCHEME = 'ws'
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WEB_SOCKET_SECURE_SCHEME = 'wss'
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# Frame opcodes defined in the spec.
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OPCODE_CONTINUATION = 0x0
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OPCODE_TEXT = 0x1
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OPCODE_BINARY = 0x2
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OPCODE_CLOSE = 0x8
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OPCODE_PING = 0x9
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OPCODE_PONG = 0xa
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# UUIDs used by HyBi 04 and later opening handshake and frame masking.
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WEBSOCKET_ACCEPT_UUID = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11'
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# Opening handshake header names and expected values.
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UPGRADE_HEADER = 'Upgrade'
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WEBSOCKET_UPGRADE_TYPE = 'websocket'
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WEBSOCKET_UPGRADE_TYPE_HIXIE75 = 'WebSocket'
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CONNECTION_HEADER = 'Connection'
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UPGRADE_CONNECTION_TYPE = 'Upgrade'
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HOST_HEADER = 'Host'
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ORIGIN_HEADER = 'Origin'
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SEC_WEBSOCKET_ORIGIN_HEADER = 'Sec-WebSocket-Origin'
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SEC_WEBSOCKET_KEY_HEADER = 'Sec-WebSocket-Key'
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SEC_WEBSOCKET_ACCEPT_HEADER = 'Sec-WebSocket-Accept'
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SEC_WEBSOCKET_VERSION_HEADER = 'Sec-WebSocket-Version'
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SEC_WEBSOCKET_PROTOCOL_HEADER = 'Sec-WebSocket-Protocol'
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SEC_WEBSOCKET_EXTENSIONS_HEADER = 'Sec-WebSocket-Extensions'
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SEC_WEBSOCKET_DRAFT_HEADER = 'Sec-WebSocket-Draft'
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SEC_WEBSOCKET_KEY1_HEADER = 'Sec-WebSocket-Key1'
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SEC_WEBSOCKET_KEY2_HEADER = 'Sec-WebSocket-Key2'
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SEC_WEBSOCKET_LOCATION_HEADER = 'Sec-WebSocket-Location'
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# Extensions
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DEFLATE_STREAM_EXTENSION = 'deflate-stream'
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DEFLATE_FRAME_EXTENSION = 'deflate-frame'
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# Status codes
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# Code STATUS_CODE_NOT_AVAILABLE should not be used in actual frames. This code
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# is exposed to JavaScript API as pseudo status code which represent actual
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# frame does not have status code.
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STATUS_NORMAL = 1000
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STATUS_GOING_AWAY = 1001
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STATUS_PROTOCOL_ERROR = 1002
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STATUS_UNSUPPORTED = 1003
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STATUS_CODE_NOT_AVAILABLE = 1005
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STATUS_ABNORMAL_CLOSE = 1006
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STATUS_INVALID_FRAME_PAYLOAD = 1007
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STATUS_POLICY_VIOLATION = 1008
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STATUS_MESSAGE_TOO_BIG = 1009
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STATUS_MANDATORY_EXT = 1010
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# HTTP status codes
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HTTP_STATUS_BAD_REQUEST = 400
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HTTP_STATUS_FORBIDDEN = 403
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HTTP_STATUS_NOT_FOUND = 404
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def is_control_opcode(opcode):
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return (opcode >> 3) == 1
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class ExtensionParameter(object):
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"""Holds information about an extension which is exchanged on extension
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negotiation in opening handshake.
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"""
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def __init__(self, name):
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self._name = name
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# TODO(tyoshino): Change the data structure to more efficient one such
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# as dict when the spec changes to say like
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# - Parameter names must be unique
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# - The order of parameters is not significant
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self._parameters = []
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def name(self):
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return self._name
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def add_parameter(self, name, value):
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self._parameters.append((name, value))
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def get_parameters(self):
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return self._parameters
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def get_parameter_names(self):
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return [name for name, unused_value in self._parameters]
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def has_parameter(self, name):
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for param_name, param_value in self._parameters:
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if param_name == name:
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return True
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return False
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def get_parameter_value(self, name):
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for param_name, param_value in self._parameters:
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if param_name == name:
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return param_value
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# vi:sts=4 sw=4 et
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