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3401f26 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | 'use strict'
const net = require('node:net')
const assert = require('node:assert')
const util = require('./util')
const { InvalidArgumentError } = require('./errors')
let tls // include tls conditionally since it is not always available
// TODO: session re-use does not wait for the first
// connection to resolve the session and might therefore
// resolve the same servername multiple times even when
// re-use is enabled.
const SessionCache = class WeakSessionCache {
constructor (maxCachedSessions) {
this._maxCachedSessions = maxCachedSessions
this._sessionCache = new Map()
this._sessionRegistry = new FinalizationRegistry((key) => {
if (this._sessionCache.size < this._maxCachedSessions) {
return
}
const ref = this._sessionCache.get(key)
if (ref !== undefined && ref.deref() === undefined) {
this._sessionCache.delete(key)
}
})
}
get (sessionKey) {
const ref = this._sessionCache.get(sessionKey)
return ref ? ref.deref() : null
}
set (sessionKey, session) {
if (this._maxCachedSessions === 0) {
return
}
if (this._sessionCache.has(sessionKey)) {
this._sessionCache.delete(sessionKey)
} else if (this._sessionCache.size >= this._maxCachedSessions) {
for (const [key, ref] of this._sessionCache) {
if (ref.deref() === undefined) {
this._sessionCache.delete(key)
return
}
}
const oldest = this._sessionCache.keys().next()
if (!oldest.done) {
this._sessionCache.delete(oldest.value)
}
}
this._sessionCache.set(sessionKey, new WeakRef(session))
this._sessionRegistry.register(session, sessionKey)
}
}
function buildConnector ({ allowH2, useH2c, maxCachedSessions, socketPath, timeout, session: customSession, ...opts }) {
if (maxCachedSessions != null && (!Number.isInteger(maxCachedSessions) || maxCachedSessions < 0)) {
throw new InvalidArgumentError('maxCachedSessions must be a positive integer or zero')
}
const options = { path: socketPath, ...opts }
const sessionCache = new SessionCache(maxCachedSessions == null ? 100 : maxCachedSessions)
timeout = timeout == null ? 10e3 : timeout
allowH2 = allowH2 != null ? allowH2 : false
return function connect ({ hostname, host, protocol, port, servername, localAddress, httpSocket }, callback) {
let socket
if (protocol === 'https:') {
if (!tls) {
tls = require('node:tls')
}
servername = servername || options.servername || util.getServerName(host) || null
const sessionKey = servername || hostname
assert(sessionKey)
const session = customSession || sessionCache.get(sessionKey) || null
port = port || 443
socket = tls.connect({
highWaterMark: 16384, // TLS in node can't have bigger HWM anyway...
...options,
servername,
session,
localAddress,
ALPNProtocols: allowH2 ? ['http/1.1', 'h2'] : ['http/1.1'],
socket: httpSocket, // upgrade socket connection
port,
host: hostname
})
socket
.on('session', function (session) {
// TODO (fix): Can a session become invalid once established? Don't think so?
sessionCache.set(sessionKey, session)
})
} else {
assert(!httpSocket, 'httpSocket can only be sent on TLS update')
port = port || 80
socket = net.connect({
highWaterMark: 64 * 1024, // Same as nodejs fs streams.
...options,
localAddress,
port,
host: hostname
})
if (useH2c === true) {
socket.alpnProtocol = 'h2'
}
}
// Set TCP keep alive options on the socket here instead of in connect() for the case of assigning the socket
if (options.keepAlive == null || options.keepAlive) {
const keepAliveInitialDelay = options.keepAliveInitialDelay === undefined ? 60e3 : options.keepAliveInitialDelay
socket.setKeepAlive(true, keepAliveInitialDelay)
}
const clearConnectTimeout = util.setupConnectTimeout(new WeakRef(socket), { timeout, hostname, port })
socket
.setNoDelay(true)
.once(protocol === 'https:' ? 'secureConnect' : 'connect', function () {
queueMicrotask(clearConnectTimeout)
if (callback) {
const cb = callback
callback = null
cb(null, this)
}
})
.on('error', function (err) {
queueMicrotask(clearConnectTimeout)
if (callback) {
const cb = callback
callback = null
cb(err)
}
})
return socket
}
}
module.exports = buildConnector
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