Node.js HTTP2服务器错误:套接字挂起

Question

鉴于最新版本的Node.js具有实验性HTTP2支持:

$ node -v
v9.2.0

HTTP2服务器:

var options = {
  key: getKey(),
  cert: getCert(),
  allowHTTP1: true
}

var server = http2.createSecureServer(options)
server.on('stream', onstream)
server.on('error', onerror)
server.on('connect', onconnect)
server.on('socketError', onsocketerror)
server.on('frameError', onframeerror)
server.on('remoteSettings', onremotesettings)
server.listen(8443)

function onconnect() {
  console.log('connect')
}

function onremotesettings(settings) {
  console.log('remote settings', settings)
}

function onframeerror(error) {
  console.log('frame error', error)
}

function onsocketerror(error) {
  console.log('socket error', error)
}

function onerror(error) {
  console.log(error)
}

function onstream(stream, headers) {
  console.log('stream')
}

并提出要求:

var https = require('https')

var options = {
  method: 'GET',
  hostname: 'localhost',
  port: '8443',
  path: '/',
  protocol: 'https:',
  rejectUnauthorized: false,
  agent: false
}

var req = https.request(options, function(res){
  var body = ''
  res.setEncoding('utf8')
  res.on('data', function(data){
    body += data;
  });
  res.on('end', function(){
    callback(null, body)
  })
})

req.end()

它只是挂起并最终说:

Error: socket hang up
at createHangUpError (_http_client.js:330:15)
    at TLSSocket.socketOnEnd (_http_client.js:423:23)
    at TLSSocket.emit (events.js:164:20)
    at endReadableNT (_stream_readable.js:1054:12)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)

如果rejectUnauthorized: true设置,则出错:

Error: self signed certificate
    at TLSSocket.onConnectSecure (_tls_wrap.js:1036:34)
    at TLSSocket.emit (events.js:159:13)
    at TLSSocket._finishInit (_tls_wrap.js:637:8)

不确定出了什么问题以及为什么它不会到达记录点stream.

如果我进入浏览器并访问https:// localhost:8443,并单击警告消息,它实际上会记录stream并成功发出请求.但是还没有得到节点来发出请求.

我想将此视为HTTP1服务器,因此不要使用HTTP2客户端来发出请求.但尝试使用同样的东西.

Answer 1

HTTP/1不与HTTP/2共享相同的请求语义,因此需要在HTTP/2服务器中检测和处理HTTP/1客户端.要同时支持,您需要使用HTTP2兼容性API.

当HTTP1客户端连接到具有allowHTTP1: trueset但未处理HTTP/1请求的HTTP/2服务器时,会发生"挂起" .

这些示例基于Node文档示例代码.

HTTP/1和/ 2混合服务器

const http2 = require('http2')
const fs = require('fs')

var options = {
  key: fs.readFileSync('server-key.pem'), 
  cert: fs.readFileSync('server-crt.pem'), 
  //ca: fs.readFileSync('ca-crt.pem'), 
  allowHTTP1: true,
}

var server = http2.createSecureServer(options, (req, res) => {
  // detects if it is a HTTPS request or HTTP/2
  const { socket: { alpnProtocol } } = (req.httpVersion === '2.0')
    ? req.stream.session 
    : req

  res.writeHead(200, { 'content-type': 'application/json' })
  res.end(JSON.stringify({
    alpnProtocol,
    httpVersion: req.httpVersion
  }))
})

server.listen(8443)

HTTP/2客户端

const http2 = require('http2')
const fs = require('fs')

const client = http2.connect('https://localhost:8443', {
    ca: fs.readFileSync('ca-crt.pem'),
    rejectUnauthorized: true,
})
client.on('socketError', (err) => console.error(err))
client.on('error', (err) => console.error(err))

const req = client.request({ ':path': '/' })

req.on('response', (headers, flags) => {
  for (const name in headers) {
    console.log('Header: "%s" "%s"', name, headers[name])
  }
})

req.setEncoding('utf8')
let data = ''
req.on('data', chunk => data += chunk)
req.on('end', () => {
  console.log('Data:', data)
  client.destroy()
})
req.end()

然后运行:

? node http2_client.js 
(node:34542) ExperimentalWarning: The http2 module is an experimental API.
Header: ":status" "200"
Header: "content-type" "application/json"
Header: "date" "Sat, 02 Dec 2017 23:27:21 GMT"
Data: {"alpnProtocol":"h2","httpVersion":"2.0"}

HTTP/1客户端

const https = require('https')
const fs = require('fs')

var options = {
  method: 'GET',
  hostname: 'localhost',
  port: '8443',
  path: '/',
  protocol: 'https:',
  ca: fs.readFileSync('ca-crt.pem'),
  rejectUnauthorized: true,
  //agent: false
}

var req = https.request(options, function(res){
  var body = ''
  res.setEncoding('utf8')
  res.on('data', data => body += data)
  res.on('end', ()=> console.log('Body:', body))
})

req.on('response', response => {
  for (const name in response.headers) {
    console.log('Header: "%s" "%s"', name, response.headers[name])
  }
})

req.end()

然后跑

? node http1_client.js 
Header: "content-type" "application/json"
Header: "date" "Sat, 02 Dec 2017 23:27:08 GMT"
Header: "connection" "close"
Header: "transfer-encoding" "chunked"
Body: {"alpnProtocol":false,"httpVersion":"1.1"}

HTTP/2服务器

使用普通的HTTP/2服务器将使用http2_client但将"挂起"为a http1_client.您删除时将关闭来自HTTP/1客户端的TLS连接allowHTTP1: true.

const http2 = require('http2')
const fs = require('fs')

var options = {
  key: fs.readFileSync('server-key.pem'), 
  cert: fs.readFileSync('server-crt.pem'), 
  ca: fs.readFileSync('ca-crt.pem'), 
  allowHTTP1: true,
}

var server = http2.createSecureServer(options)
server.on('error', error => console.log(error))
server.on('connect', conn => console.log('connect', conn))
server.on('socketError', error => console.log('socketError', error))
server.on('frameError', error => console.log('frameError', error))
server.on('remoteSettings', settings => console.log('remote settings', settings))

server.on('stream', (stream, headers) => {
  console.log('stream', headers)
  stream.respond({
    'content-type': 'application/html',
    ':status': 200
  })
  console.log(stream.session)
  stream.end(JSON.stringify({
    alpnProtocol: stream.session.socket.alpnProtocol,
    httpVersion: "2"
  }))
})

server.listen(8443)

证书

通过要点中详述的扩展中间证书设置,需要将完整的CA证书链提供给客户端.

cat ca/x/certs/x.public.pem > caxy.pem
cat ca/y/certs/y.public.pem >> caxy.pem

然后在客户端中使用此ca选项.

{ 
  ca: fs.readFileSync('caxy.pem'),
}

这些示例是使用此circle.com文章中的以下简单CA设置运行的:

为了简化配置,让我们获取以下CA配置文件.

wget https://raw.githubusercontent.com/anders94/https-authorized-clients/master/keys/ca.cnf

接下来,我们将使用此配置创建新的证书颁发机构.

openssl req -new -x509 \
  -days 9999 \
  -config ca.cnf \
  -keyout ca-key.pem \
  -out ca-crt.pem

现在我们在ca-key.pem和ca-crt.pem中拥有了我们的证书权限,让我们为服务器生成一个私钥.

openssl genrsa \
  -out server-key.pem \
  4096

我们的下一步是生成证书签名请求.再次简化配置,让我们使用server.cnf作为配置快捷方式.

wget https://raw.githubusercontent.com/anders94/https-authorized-clients/master/keys/server.cnf

现在我们将生成证书签名请求.

openssl req -new \
  -config server.cnf \
  -key server-key.pem \
  -out server-csr.pem

现在让我们签署请求.

openssl x509 -req -extfile server.cnf \
  -days 999 \
  -passin "pass:password" \
  -in server-csr.pem \
  -CA ca-crt.pem \
  -CAkey ca-key.pem \
  -CAcreateserial \
  -out server-crt.pem