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Node.js http2stream.sentInfoHeaders用法及代碼示例


http2stream.sentInfoHeaders是http2模塊內的Http2Stream類的內置應用程序編程接口,用於獲取包含發送到此Http2Stream的出站信息(附加)標頭的對象。

用法:

http2stream.sentInfoHeaders

參數:此方法不接受任何參數。

返回值:此方法返回一個對象,該對象包含發送到此Http2Stream的出站信息(附加)標頭。

如何生成私鑰和公共證書?



  1. 私鑰:打開記事本並複製粘貼以下 key ,如下所示:
    -----BEGIN RSA PRIVATE KEY-----
    MIICXQIBAAKBgQC38R9wXcUbhOd44FavgmE5R3K4JeYOHLnI7dUq1B8/Gv7l3SOg
    JKef/m9gM1KvUx951mapXGtcWgwB08J3vUE2YOZ4tWJArrVZES0BI/RmFAyhQFP5
    HcWl3LSM9LRihP98F33oIkKaCxA5LxOrkgpV4HrUzIKTABDYah7RPex1WQIDAQAB
    AoGBAIXR71xxa9gUfc5L7+TqBs+EMmrUb6Vusp8CoGXzQvRHMJCMrMFySV0131Nu
    o0YYRDsAh1nJefYLMNcXd1BjqI+qY8IeRsxaY+9CB2KKGVVDO2uLdurdC2ZdlWXT
    Vwr3dDoyR0trnXJMmH2ijTeO6bush8HuXxvxJBjvEllM5QYxAkEA3jwny9JP+RFu
    0rkqPBe/wi5pXpPl7PUtdNAGrh6S5958wUoR4f9bvwmTBv1nQzExKWu4EIp+7vjJ
    fBeRZhnBvQJBANPjjge8418PS9zAFyKlITq6cxmM4gOWeveQZwXVNvav0NH+OKdQ
    sZnnDiG26JWmnD/B8Audu97LcxjxcWI8Jc0CQEYA5PhLU229lA9EzI0JXhoozIBC
    TlcKFDuLm88VSmlHqDyqvF9YNOpEdc/p2rFLuZS2ndB4D+vu6mjwc5iZ3HECQCxy
    GBHRclQ3Ti9w76lpv+2kvI4IekRMZWDWnnWfwta+DGxwCgw2pfpleBZkWqdBepb5
    JFQbcxQJ0wvRYXo8qaUCQQCgTvWswBj6OTP7LTvBlU1teAN2Lnrk/N5AYHZIXW6m
    nUG9lYvH7DztWDTioXMrruPF7bdXfZOVJD8t0I4OUzvC
    -----END RSA PRIVATE KEY-----
    

    現在將文件另存為private-key.pem

  2. 公開證書:打開記事本並複製粘貼以下 key :
    -----BEGIN CERTIFICATE-----
    MIICfzCCAegCCQDxxeXw914Y2DANBgkqhkiG9w0BAQsFADCBgzELMAkGA1UEBhMC
    SU4xEzARBgNVBAgMCldlc3RiZW5nYWwxEDAOBgNVBAcMB0tvbGthdGExFDASBgNV
    BAoMC1BhbmNvLCBJbmMuMRUwEwYDVQQDDAxSb2hpdCBQcmFzYWQxIDAeBgkqhkiG
    9w0BCQEWEXJvZm9mb2ZAZ21haWwuY29tMB4XDTIwMDkwOTA1NTExN1oXDTIwMTAw
    OTA1NTExN1owgYMxCzAJBgNVBAYTAklOMRMwEQYDVQQIDApXZXN0YmVuZ2FsMRAw
    DgYDVQQHDAdLb2xrYXRhMRQwEgYDVQQKDAtQYW5jbywgSW5jLjEVMBMGA1UEAwwM
    Um9oaXQgUHJhc2FkMSAwHgYJKoZIhvcNAQkBFhFyb2ZvZm9mQGdtYWlsLmNvbTCB
    nzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAt/EfcF3FG4TneOBWr4JhOUdyuCXm
    Dhy5yO3VKtQfPxr+5d0joCSnn/5vYDNSr1MfedZmqVxrXFoMAdPCd71BNmDmeLVi
    QK61WREtASP0ZhQMoUBT+R3Fpdy0jPS0YoT/fBd96CJCmgsQOS8Tq5IKVeB61MyC
    kwAQ2Goe0T3sdVkCAwEAATANBgkqhkiG9w0BAQsFAAOBgQATe6ixdAjoV7BSHgRX
    bXM2+IZLq8kq3s7ck0EZrRVhsivutcaZwDXRCCinB+OlPedbzXwNZGvVX0nwPYHG
    BfiXwdiuZeVJ88ni6Fm6RhoPtu2QF1UExfBvSXuMBgR+evp+e3QadNpGx6Ppl1aC
    hWF6W2H9+MAlU7yvtmCQQuZmfQ==
    -----END CERTIFICATE-----
    

    現在將另存為public-cert.pem

示例1:Filename:index.js

// Node.js program to demonstrate the 
// Http2Stream.sentInfoHeaders method 
  
const http2 = require('http2'); 
const fs = require('fs'); 
  
// Private key and public certificate for access 
const options = { 
  key:fs.readFileSync('private-key.pem'), 
  cert:fs.readFileSync('public-cert.pem'), 
}; 
  
// Creating and initializing server 
// by using http2.createServer() method 
const server = http2.createServer(options); 
  
server.on('stream', (stream, requestHeaders) => { 
  
   stream.additionalHeaders({  
      ':status':100,  
      'content-type':'text/plain' 
   }); 
  
   // Getting rst stream code 
   // by using sentInfoHeaders api 
   const status = stream.sentInfoHeaders; 
  
   console.log(status) 
  
   stream.end("the end"); 
    
   // Stopping the server 
   // by using the close() method 
   server.close(() => { 
     console.log("server destroyed"); 
   }) 
}); 
  
server.listen(8000); 
  
// Creating and initializing client 
// by using tls.connect() method 
const client = http2.connect('http://localhost:8000'); 
  
const req = client.request({  
   ':method':'GET', ':path':'/' 
}); 
  
req.on('data', (data) => { 
  console.log('Received:%s ', 
  data.toString().replace(/(\n)/gm, "")); 
}); 
  
req.on('end', () => { 
  client.close(() => { 
    console.log("client destroyed"); 
  }) 
});

使用以下命令運行index.js文件:

node index.js

輸出:

[
  [Object:null prototype] {
    ':status':100,
    'content-type':'text/plain'
  }
]
Received:the end 
client destroyed
server destroyed

範例2: 文件名:index.js

// Node.js program to demonstrate the 
// Http2Stream.sentInfoHeaders method 
  
const http2 = require('http2'); 
const fs = require('fs'); 
  
// Private key and public certificate for access 
const options = { 
   key:fs.readFileSync('private-key.pem'), 
   cert:fs.readFileSync('public-cert.pem'), 
}; 
  
// Creating and initializing server 
// by using http2.createServer() method 
const server = http2.createServer(options); 
  
server.on('stream', (stream, requestHeaders) => { 
  
    // Getting rst stream code 
    // by using sentInfoHeaders api 
    const status = stream.sentInfoHeaders; 
  
    stream.end("header object:" + status); 
  
    // Stopping the server 
    // by using the close() method 
    server.close(() => { 
       console.log("server destroyed"); 
    }) 
}); 
  
server.listen(8000); 
  
// Creating and intializing client 
// by using tls.connect() method 
const client = http2 
    .connect('http:// localhost:8000'); 
  
const req = client.request({  
    ':method' :'GET', ':path' :'/' 
}); 
  
req.on('data', (data) => { 
    console.log('Received:%s ', 
    data.toString().replace(/ (\n) / gm, "")); 
}); 
  
req.on('end', () => { 
  client.close(() => { 
     console.log("client destroyed"); 
  }) 
});

使用以下命令運行index.js文件:

node index.js

輸出:

Received:header object:undefined
client destroyed
server destroyed

參考: https://nodejs.org/dist/latest-v12.x/docs/api/http2.html#http2_http2stream_additionalheaders_headers




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注:本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 Node.js http2stream.sentInfoHeaders Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。