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- 'use strict'
- var transport = require('../../../spdy-transport')
- var base = transport.protocol.base
- exports.PREFACE_SIZE = 24
- exports.PREFACE = 'PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n'
- exports.PREFACE_BUFFER = Buffer.from(exports.PREFACE)
- exports.PING_OPAQUE_SIZE = 8
- exports.FRAME_HEADER_SIZE = 9
- exports.INITIAL_MAX_FRAME_SIZE = 16384
- exports.ABSOLUTE_MAX_FRAME_SIZE = 16777215
- exports.HEADER_TABLE_SIZE = 4096
- exports.DEFAULT_MAX_HEADER_LIST_SIZE = 80 * 1024 // as in http_parser
- exports.MAX_INITIAL_WINDOW_SIZE = 2147483647
- exports.DEFAULT_WEIGHT = 16
- exports.MAX_CONCURRENT_STREAMS = Infinity
- exports.frameType = {
- DATA: 0,
- HEADERS: 1,
- PRIORITY: 2,
- RST_STREAM: 3,
- SETTINGS: 4,
- PUSH_PROMISE: 5,
- PING: 6,
- GOAWAY: 7,
- WINDOW_UPDATE: 8,
- CONTINUATION: 9,
- // Custom
- X_FORWARDED_FOR: 0xde
- }
- exports.flags = {
- ACK: 0x01, // SETTINGS-only
- END_STREAM: 0x01,
- END_HEADERS: 0x04,
- PADDED: 0x08,
- PRIORITY: 0x20
- }
- exports.settings = {
- SETTINGS_HEADER_TABLE_SIZE: 0x01,
- SETTINGS_ENABLE_PUSH: 0x02,
- SETTINGS_MAX_CONCURRENT_STREAMS: 0x03,
- SETTINGS_INITIAL_WINDOW_SIZE: 0x04,
- SETTINGS_MAX_FRAME_SIZE: 0x05,
- SETTINGS_MAX_HEADER_LIST_SIZE: 0x06
- }
- exports.settingsIndex = [
- null,
- 'header_table_size',
- 'enable_push',
- 'max_concurrent_streams',
- 'initial_window_size',
- 'max_frame_size',
- 'max_header_list_size'
- ]
- exports.error = {
- OK: 0,
- NO_ERROR: 0,
- PROTOCOL_ERROR: 1,
- INTERNAL_ERROR: 2,
- FLOW_CONTROL_ERROR: 3,
- SETTINGS_TIMEOUT: 4,
- STREAM_CLOSED: 5,
- INVALID_STREAM: 5,
- FRAME_SIZE_ERROR: 6,
- REFUSED_STREAM: 7,
- CANCEL: 8,
- COMPRESSION_ERROR: 9,
- CONNECT_ERROR: 10,
- ENHANCE_YOUR_CALM: 11,
- INADEQUATE_SECURITY: 12,
- HTTP_1_1_REQUIRED: 13
- }
- exports.errorByCode = base.utils.reverse(exports.error)
- exports.DEFAULT_WINDOW = 64 * 1024 - 1
- exports.goaway = exports.error
- exports.goawayByCode = Object.assign({}, exports.errorByCode)
- exports.goawayByCode[0] = 'OK'
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