| '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' |
