一個交互式的HTTP/2(“H2”)控制臺調試器：h2i

h2i是一個一個交互式的HTTP/2(“H2”)控制臺調試器。

Features:

• send raw HTTP/2 frames

  • PING
  • SETTINGS
  • HEADERS
  • etc
  </ul> </li>
  • type in HTTP/1.n and have it auto-HPACK/frame-ify it for HTTP/2
  • pretty print all received HTTP/2 frames from the peer (including HPACK decoding)
  • tab completion of available commands
  </ul>

  Not yet features, but soon:

  • unnecessary CONTINUATION frames on short boundaries, to test peer implementations
  • request bodies (DATA frames)
  • auto-completion of subcommands and options
  • send invalid frames for testing server implementations (supported by underlying Framer)
  示例：

  $ h2i
  Usage: h2i <hostname>
  
    -insecure
          Whether to skip TLS cert validation
    -nextproto string
          Comma-separated list of NPN/ALPN protocol names to negotiate. (default "h2,h2-14")
  
  $ h2i google.com
  Connecting to google.com:443 ...
  Connected to 74.125.224.41:443
  Negotiated protocol "h2-14"
  [FrameHeader SETTINGS len=18]
    [MAX_CONCURRENT_STREAMS = 100]
    [INITIAL_WINDOW_SIZE = 1048576]
    [MAX_FRAME_SIZE = 16384]
  [FrameHeader WINDOW_UPDATE len=4]
    Window-Increment = 983041
  
  h2i> PING h2iSayHI
  [FrameHeader PING flags=ACK len=8]
    Data = "h2iSayHI"
  h2i> headers
  (as HTTP/1.1)> GET / HTTP/1.1
  (as HTTP/1.1)> Host: ip.appspot.com
  (as HTTP/1.1)> User-Agent: h2i/brad-n-blake
  (as HTTP/1.1)>  
  Opening Stream-ID 1:
   :authority = ip.appspot.com
   :method = GET
   :path = /
   :scheme = https
   user-agent = h2i/brad-n-blake
  [FrameHeader HEADERS flags=END_HEADERS stream=1 len=77]
    :status = "200"
    alternate-protocol = "443:quic,p=1"
    content-length = "15"
    content-type = "text/html"
    date = "Fri, 01 May 2015 23:06:56 GMT"
    server = "Google Frontend"
  [FrameHeader DATA flags=END_STREAM stream=1 len=15]
    "173.164.155.78\n"
  [FrameHeader PING len=8]
    Data = "\x00\x00\x00\x00\x00\x00\x00\x00"
  h2i> ping  
  [FrameHeader PING flags=ACK len=8]  
    Data = "h2i_ping"  
  h2i> ping  
  [FrameHeader PING flags=ACK len=8]
    Data = "h2i_ping"
  h2i> ping
  [FrameHeader GOAWAY len=22]
    Last-Stream-ID = 1; Error-Code = PROTOCOL_ERROR (1)
  
  ReadFrame: EOF

  
  

  項目主頁：http://www.baiduhome.net/lib/view/home/1430535717662