RFC 9113 - HTTP/2

发布日期: 2022年6月
状态: 标准跟踪 (Standards Track)
作者: M. Thomson (Mozilla), C. Benfield (Apple Inc.)
废弃: RFC 7540, RFC 8740

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摘要 (Abstract)

本规范描述了超文本传输协议 (HTTP) 语义的优化表达方式，称为HTTP版本2 (HTTP/2)。HTTP/2通过引入字段压缩 (Field Compression) 并允许在同一连接上进行多个并发交换，实现了更高效的网络资源使用和更低的延迟。

本文档废弃了RFC 7540和RFC 8740。

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目录 (Contents)

• 1. Introduction (简介)
• 2. HTTP/2 Protocol Overview (HTTP/2协议概述)
  • 2.1 Document Organization
  • 2.2 Conventions and Terminology
• 3. Starting HTTP/2 (启动HTTP/2)
  • 3.1 HTTP/2 Version Identification
  • 3.2 Starting HTTP/2 for "https" URIs
  • 3.3 Starting HTTP/2 with Prior Knowledge
  • 3.4 HTTP/2 Connection Preface
• 4. HTTP Frames (HTTP帧)
  • 4.1 Frame Format
  • 4.2 Frame Size
  • 4.3 Field Section Compression and Decompression
• 5. Streams and Multiplexing (流与多路复用)
  • 5.1 Stream States
  • 5.2 Flow Control
  • 5.3 Prioritization
  • 5.4 Error Handling
  • 5.5 Extending HTTP/2
• 6. Frame Definitions (帧定义)
  • 6.1 DATA
  • 6.2 HEADERS
  • 6.3 PRIORITY
  • 6.4 RST_STREAM
  • 6.5 SETTINGS
  • 6.6 PUSH_PROMISE
  • 6.7 PING
  • 6.8 GOAWAY
  • 6.9 WINDOW_UPDATE
  • 6.10 CONTINUATION
• 7. Error Codes (错误码)
• 8. Expressing HTTP Semantics in HTTP/2 (在HTTP/2中表达HTTP语义)
  • 8.1 HTTP Message Framing
  • 8.2 HTTP Fields
  • 8.3 HTTP Control Data
  • 8.4 Server Push
  • 8.5 The CONNECT Method
  • 8.6 The Upgrade Header Field
  • 8.7 Request Reliability
  • 8.8 Examples
• 9. HTTP/2 Connections (HTTP/2连接)
  • 9.1 Connection Management
  • 9.2 Use of TLS Features
• 10. Security Considerations (安全考虑)
  • 10.1 Server Authority
  • 10.2 Cross-Protocol Attacks
  • 10.3 Intermediary Encapsulation Attacks
  • 10.4 Cacheability of Pushed Responses
  • 10.5 Denial-of-Service Considerations
  • 10.6 Use of Compression
  • 10.7 Use of Padding
  • 10.8 Privacy Considerations
  • 10.9 Remote Timing Attacks
• 11. IANA Considerations (IANA考虑)
  • 11.1 HTTP2-Settings Header Field Registration
  • 11.2 The h2c Upgrade Token
• 12. References (参考文献)
  • 12.1 Normative References
  • 12.2 Informative References

附录 (Appendices)

• Appendix A. Prohibited TLS 1.2 Cipher Suites (禁止的TLS 1.2密码套件)
• Appendix B. Changes from RFC 7540 (与RFC 7540的变更)

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相关资源

• 官方原文: RFC 9113
• 官方页面: RFC 9113 DataTracker
• 勘误表: RFC Editor Errata

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