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78 lines
2.7 KiB
Python
78 lines
2.7 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_HYBI07 = 8
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VERSION_HYBI00 = 0
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VERSION_HIXIE75 = -1
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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 07 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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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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# Status codes
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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_TOO_LARGE = 1004
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# vi:sts=4 sw=4 et
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