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// Copyright Joyent, Inc. and other Node contributors.

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the

// "Software"), to deal in the Software without restriction, including

// without limitation the rights to use, copy, modify, merge, publish,

// distribute, sublicense, and/or sell copies of the Software, and to permit

// persons to whom the Software is furnished to do so, subject to the

// following conditions:

// The above copyright notice and this permission notice shall be included

// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN

// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';

const {

ArrayIsArray,

ArrayPrototypeIndexOf,

ArrayPrototypePush,

ArrayPrototypeShift,

ArrayPrototypeSplice,

ArrayPrototypeUnshift,

FunctionPrototypeCall,

JSONStringify,

NumberParseInt,

ObjectAssign,

ObjectSetPrototypeOf,

ReflectApply,

ReflectConstruct,

Symbol,

SymbolAsyncDispose,

} = primordials;

const {

assertCrypto,

kEmptyObject,

promisify,

once,

} = require('internal/util');

const { ERR_PROXY_TUNNEL } = require('internal/errors').codes;

assertCrypto();

const tls = require('tls');

const kPerRequestCheckServerIdentity = Symbol('per-request checkServerIdentity');

let perRequestCheckServerIdentityIndex = 0;

const {

kProxyConfig,

checkShouldUseProxy,

kWaitForProxyTunnel,

getGlobalAgent,

} = require('internal/http');

const { Agent: HttpAgent } = require('_http_agent');

const {

httpServerPreClose,

Server: HttpServer,

setupConnectionsTracking,

storeHTTPOptions,

_connectionListener,

} = require('_http_server');

const { ClientRequest } = require('_http_client');

let debug = require('internal/util/debuglog').debuglog('https', (fn) => {

debug = fn;

});

const net = require('net');

const { URL, urlToHttpOptions, isURL } = require('internal/url');

const { validateObject } = require('internal/validators');

const { isIP } = require('internal/net');

const assert = require('internal/assert');

const { getOptionValue } = require('internal/options');

function Server(opts, requestListener) {

if (!(this instanceof Server)) return new Server(opts, requestListener);

let ALPNProtocols = ['http/1.1'];

if (typeof opts === 'function') {

requestListener = opts;

opts = kEmptyObject;

} else if (opts == null) {

opts = kEmptyObject;

} else {

validateObject(opts, 'options');

// Only one of ALPNProtocols and ALPNCallback can be set, so make sure we

// only set a default ALPNProtocols if the caller has not set either of them

if (opts.ALPNProtocols || opts.ALPNCallback)

ALPNProtocols = undefined;

}

FunctionPrototypeCall(storeHTTPOptions, this, opts);

FunctionPrototypeCall(tls.Server, this,

{

noDelay: true,

ALPNProtocols,

...opts,

_connectionListener);

this.httpAllowHalfOpen = false;

if (requestListener) {

this.addListener('request', requestListener);

}

this.addListener('tlsClientError', function addListener(err, conn) {

if (!this.emit('clientError', err, conn))

conn.destroy(err);

});

this.timeout = 0;

this.maxHeadersCount = null;

this.on('listening', setupConnectionsTracking);

}

ObjectSetPrototypeOf(Server.prototype, tls.Server.prototype);

ObjectSetPrototypeOf(Server, tls.Server);

Server.prototype.closeAllConnections = HttpServer.prototype.closeAllConnections;

Server.prototype.closeIdleConnections = HttpServer.prototype.closeIdleConnections;

Server.prototype.setTimeout = HttpServer.prototype.setTimeout;

Server.prototype.close = function close() {

httpServerPreClose(this);

ReflectApply(tls.Server.prototype.close, this, arguments);

return this;

};

Server.prototype[SymbolAsyncDispose] = async function() {

await FunctionPrototypeCall(promisify(this.close), this);

};

/**

* Creates a new `https.Server` instance.

* @param {{

* IncomingMessage?: IncomingMessage;

* ServerResponse?: ServerResponse;

* insecureHTTPParser?: boolean;

* maxHeaderSize?: number;

* }} [opts]

* @param {Function} [requestListener]

* @returns {Server}

function createServer(opts, requestListener) {

return new Server(opts, requestListener);

}

// When proxying a HTTPS request, the following needs to be done:

// https://datatracker.ietf.org/doc/html/rfc9110#CONNECT

// 1. Send a CONNECT request to the proxy server.

// 2. Wait for 200 connection established response to establish the tunnel.

// 3. Perform TLS handshake with the endpoint over the socket.

// 4. Tunnel the request using the established connection.

// This function computes the tunnel configuration for HTTPS requests.

// The handling of the tunnel connection is done in createConnection.

function getTunnelConfigForProxiedHttps(agent, reqOptions) {

if (!agent[kProxyConfig]) {

return null;

}

if ((reqOptions.protocol || agent.protocol) !== 'https:') {

return null;

}

const shouldUseProxy = checkShouldUseProxy(agent[kProxyConfig], reqOptions);

debug(`getTunnelConfigForProxiedHttps should use proxy for ${reqOptions.host}:${reqOptions.port}:`, shouldUseProxy);

if (!shouldUseProxy) {

return null;

}

const { auth, href } = agent[kProxyConfig];

// The request is a HTTPS request, assemble the payload for establishing the tunnel.

const ipType = isIP(reqOptions.host);

// The request target must put IPv6 address in square brackets.

// Here reqOptions is already processed by urlToHttpOptions so we'll add them back if necessary.

// See https://www.rfc-editor.org/rfc/rfc3986#section-3.2.2

const requestHost = ipType === 6 ? `[${reqOptions.host}]` : reqOptions.host;

const requestPort = reqOptions.port || agent.defaultPort;

const endpoint = `${requestHost}:${requestPort}`;

// The ClientRequest constructor should already have validated the host and the port.

// When the request options come from a string invalid characters would be stripped away,

// when it's an object ERR_INVALID_CHAR would be thrown. Here we just assert in case

// agent.createConnection() is called with invalid options.

assert(!endpoint.includes('\r'));

assert(!endpoint.includes('\n'));

let payload = `CONNECT ${endpoint} HTTP/1.1\r\n`;

// The parseProxyConfigFromEnv() method should have already validated the authorization header

// value.

if (auth) {

payload += `proxy-authorization: ${auth}\r\n`;

}

if (agent.keepAlive || agent.maxSockets !== Infinity) {

payload += 'proxy-connection: keep-alive\r\n';

}

payload += `host: ${endpoint}`;

payload += '\r\n\r\n';

const result = {

__proto__: null,

proxyTunnelPayload: payload,

requestOptions: { // Options used for the request sent after the tunnel is established.

__proto__: null,

servername: reqOptions.servername || ipType ? undefined : reqOptions.host,

...reqOptions,

};

debug(`updated request for HTTPS proxy ${href} with`, result);

return result;

};

function establishTunnel(agent, socket, options, tunnelConfig, afterSocket) {

const { proxyTunnelPayload } = tunnelConfig;

// By default, the socket is in paused mode. Read to look for the 200

// connection established response.

function read() {

let chunk;

while ((chunk = socket.read()) !== null) {

if (onProxyData(chunk) !== -1) {

break;

}

socket.on('readable', read);

}

function cleanup() {

socket.removeListener('end', onProxyEnd);

socket.removeListener('error', onProxyError);

socket.removeListener('readable', read);

socket.setTimeout(0); // Clear the timeout for the tunnel establishment.

}

function onProxyError(err) {

debug('onProxyError', err);

cleanup();

afterSocket(err, socket);

}

// Read the headers from the chunks and check for the status code. If it fails we

// clean up the socket and return an error. Otherwise we establish the tunnel.

let buffer = '';

function onProxyData(chunk) {

const str = chunk.toString();

debug('onProxyData', str);

buffer += str;

const headerEndIndex = buffer.indexOf('\r\n\r\n');

if (headerEndIndex === -1) return headerEndIndex;

const statusLine = buffer.substring(0, buffer.indexOf('\r\n'));

const statusCode = statusLine.split(' ')[1];

if (statusCode !== '200') {

debug(`onProxyData receives ${statusCode}, cleaning up`);

cleanup();

const targetHost = proxyTunnelPayload.split('\r')[0].split(' ')[1];

const message = `Failed to establish tunnel to ${targetHost} via ${agent[kProxyConfig].href}: ${statusLine}`;

const err = new ERR_PROXY_TUNNEL(message);

err.statusCode = NumberParseInt(statusCode);

afterSocket(err, socket);

} else {

// https://datatracker.ietf.org/doc/html/rfc9110#CONNECT

// RFC 9110 says that it can be 2xx but in the real world, proxy clients generally only

// accepts 200.

// Proxy servers are not supposed to send anything after the headers - the payload must be

// be empty. So after this point we will proceed with the tunnel e.g. starting TLS handshake.

debug('onProxyData receives 200, establishing tunnel');

cleanup();

// Reuse the tunneled socket to perform the TLS handshake with the endpoint,

// then send the request.

const { requestOptions } = tunnelConfig;

tunnelConfig.requestOptions = null;

requestOptions.socket = socket;

let tunneldSocket;

const onTLSHandshakeError = (err) => {

debug('Propagate error event from tunneled socket to tunnel socket');

afterSocket(err, tunneldSocket);

};

tunneldSocket = tls.connect(requestOptions, () => {

debug('TLS handshake over tunnel succeeded');

tunneldSocket.removeListener('error', onTLSHandshakeError);

afterSocket(null, tunneldSocket);

});

if (requestOptions[kPerRequestCheckServerIdentity])

tunneldSocket[kPerRequestCheckServerIdentity] = true;

tunneldSocket.on('free', () => {

debug('Propagate free event from tunneled socket to tunnel socket');

socket.emit('free');

});

tunneldSocket.on('error', onTLSHandshakeError);

}

return headerEndIndex;

}

function onProxyEnd() {

cleanup();

const err = new ERR_PROXY_TUNNEL('Connection to establish proxy tunnel ended unexpectedly');

afterSocket(err, socket);

}

const proxyTunnelTimeout = tunnelConfig.requestOptions.timeout;

debug('proxyTunnelTimeout', proxyTunnelTimeout, options.timeout);

// It may be worth a separate timeout error/event.

// But it also makes sense to treat the tunnel establishment timeout as

// a normal timeout for the request.

function onProxyTimeout() {

debug('onProxyTimeout', proxyTunnelTimeout);

cleanup();

const err = new ERR_PROXY_TUNNEL(`Connection to establish proxy tunnel timed out after ${proxyTunnelTimeout}ms`);

err.proxyTunnelTimeout = proxyTunnelTimeout;

afterSocket(err, socket);

}

if (proxyTunnelTimeout && proxyTunnelTimeout > 0) {

debug('proxy tunnel setTimeout', proxyTunnelTimeout);

socket.setTimeout(proxyTunnelTimeout, onProxyTimeout);

}

socket.on('error', onProxyError);

socket.on('end', onProxyEnd);

socket.write(proxyTunnelPayload);

read();

}

// HTTPS agents.

// See ProxyConfig in internal/http.js for how the connection should be handled

// when the agent is configured to use a proxy server.

function createConnection(...args) {

// XXX: This signature (port, host, options) is different from all the other

// createConnection() methods.

let options, cb;

if (args[0] !== null && typeof args[0] === 'object') {

options = args[0];

} else if (args[1] !== null && typeof args[1] === 'object') {

options = { ...args[1] };

} else if (args[2] === null || typeof args[2] !== 'object') {

options = {};

} else {

options = { ...args[2] };

}

if (typeof args[0] === 'number') {

options.port = args[0];

}

if (typeof args[1] === 'string') {

options.host = args[1];

}

if (typeof args[args.length - 1] === 'function') {

cb = args[args.length - 1];

}

debug('createConnection', options);

const reuseSession = options._agentKey &&

!options[kPerRequestCheckServerIdentity];

if (reuseSession) {

const session = this._getSession(options._agentKey);

if (session) {

debug('reuse session for %j', options._agentKey);

options = {

session,

...options,

};

}

let socket;

const tunnelConfig = getTunnelConfigForProxiedHttps(this, options);

debug(`https createConnection should use proxy for ${options.host}:${options.port}:`, tunnelConfig);

if (!tunnelConfig) {

socket = tls.connect(options);

} else {

const connectOptions = {

...this[kProxyConfig].proxyConnectionOptions,

};

debug('Create proxy socket', connectOptions);

const onError = (err) => {

cleanupAndPropagate(err, socket);

};

const proxyTunnelTimeout = tunnelConfig.requestOptions.timeout;

const onTimeout = () => {

const err = new ERR_PROXY_TUNNEL(`Connection to establish proxy tunnel timed out after ${proxyTunnelTimeout}ms`);

err.proxyTunnelTimeout = proxyTunnelTimeout;

cleanupAndPropagate(err, socket);

};

const cleanupAndPropagate = once((err, currentSocket) => {

debug('cleanupAndPropagate', err);

socket.removeListener('error', onError);

socket.removeListener('timeout', onTimeout);

// An error occurred during tunnel establishment, in that case just destroy the socket.

// and propagate the error to the callback.

// When the error comes from unexpected status code, the stream is still in good shape,

// in that case let req.onSocket handle the destruction instead.

if (err && err.code === 'ERR_PROXY_TUNNEL' && !err.statusCode) {

socket.destroy();

}

// This error should go to:

// -> oncreate in Agent.prototype.createSocket

// -> closure in Agent.prototype.addRequest or Agent.prototype.removeSocket

if (cb) {

cb(err, currentSocket);

}

});

const onProxyConnection = () => {

socket.removeListener('error', onError);

establishTunnel(this, socket, options, tunnelConfig, cleanupAndPropagate);

};

if (this[kProxyConfig].protocol === 'http:') {

socket = net.connect(connectOptions, onProxyConnection);

} else {

socket = tls.connect(connectOptions, onProxyConnection);

}

socket.on('error', onError);

if (proxyTunnelTimeout) {

socket.setTimeout(proxyTunnelTimeout, onTimeout);

}

socket[kWaitForProxyTunnel] = true;

}

if (options[kPerRequestCheckServerIdentity])

socket[kPerRequestCheckServerIdentity] = true;

if (reuseSession) {

// Cache new session for reuse

socket.on('session', (session) => {

this._cacheSession(options._agentKey, session);

});

// Evict session on error

socket.once('close', (err) => {

if (err)

this._evictSession(options._agentKey);

});

}

return socket;

}

/**

* Creates a new `HttpAgent` instance.

* @param {{

* keepAlive?: boolean;

* keepAliveMsecs?: number;

* maxSockets?: number;

* maxTotalSockets?: number;

* maxFreeSockets?: number;

* scheduling?: string;

* timeout?: number;

* maxCachedSessions?: number;

* servername?: string;

* defaultPort?: number;

* protocol?: string;

* proxyEnv?: object;

* }} [options]

* @class

function Agent(options) {

if (!(this instanceof Agent))

return new Agent(options);

options = { __proto__: null, ...options };

options.defaultPort ??= 443;

options.protocol ??= 'https:';

FunctionPrototypeCall(HttpAgent, this, options);

this.maxCachedSessions = this.options.maxCachedSessions;

if (this.maxCachedSessions === undefined)

this.maxCachedSessions = 100;

this._sessionCache = {

map: {},

list: [],

};

}

ObjectSetPrototypeOf(Agent.prototype, HttpAgent.prototype);

ObjectSetPrototypeOf(Agent, HttpAgent);

Agent.prototype.createConnection = createConnection;

Agent.prototype.keepSocketAlive = function keepSocketAlive(socket) {

if (socket[kPerRequestCheckServerIdentity])

return false;

return FunctionPrototypeCall(HttpAgent.prototype.keepSocketAlive, this, socket);

};

function getPfxAgentKey(pfx, passphrase) {

if (!ArrayIsArray(pfx))

return pfx;

let key = '';

for (let i = 0; i < pfx.length; i++) {

const value = pfx[i];

const raw = value?.buf || value;

const pass = value?.passphrase || passphrase;

key += `:${raw}:${pass}`;

}

return key;

}

/**

* Gets a unique name for a set of options.

* @param {{

* host: string;

* port: number;

* localAddress: string;

* family: number;

* }} [options]

* @returns {string}

Agent.prototype.getName = function getName(options = kEmptyObject) {

let name = FunctionPrototypeCall(HttpAgent.prototype.getName, this, options);

name += ':';

if (options.ca)

name += options.ca;

name += ':';

if (options.cert)

name += options.cert;

name += ':';

if (options.clientCertEngine)

name += options.clientCertEngine;

name += ':';

if (options.ciphers)

name += options.ciphers;

name += ':';

if (options.key)

name += options.key;

name += ':';

if (options.pfx)

name += getPfxAgentKey(options.pfx, options.passphrase);

name += ':';

if (options.rejectUnauthorized !== undefined)

name += options.rejectUnauthorized;

name += ':';

if (options.servername && options.servername !== options.host)

name += options.servername;

name += ':';

if (options.minVersion)

name += options.minVersion;

name += ':';

if (options.maxVersion)

name += options.maxVersion;

name += ':';

if (options.secureProtocol)

name += options.secureProtocol;

name += ':';

if (options.crl)

name += options.crl;

name += ':';

if (options.honorCipherOrder !== undefined)

name += options.honorCipherOrder;

name += ':';

if (options.ecdhCurve)

name += options.ecdhCurve;

name += ':';

if (options.dhparam)

name += options.dhparam;

name += ':';

if (options.secureOptions !== undefined)

name += options.secureOptions;

name += ':';

if (options.sessionIdContext)

name += options.sessionIdContext;

name += ':';

if (options.sigalgs)

name += JSONStringify(options.sigalgs);

name += ':';

if (options.privateKeyIdentifier)

name += options.privateKeyIdentifier;

name += ':';

if (options.privateKeyEngine)

name += options.privateKeyEngine;

if (options[kPerRequestCheckServerIdentity])

name += `:${options[kPerRequestCheckServerIdentity]}`;

return name;

};

Agent.prototype._getSession = function _getSession(key) {

return this._sessionCache.map[key];

};

Agent.prototype._cacheSession = function _cacheSession(key, session) {

// Cache is disabled

if (this.maxCachedSessions === 0)

return;

// Fast case - update existing entry

if (this._sessionCache.map[key]) {

this._sessionCache.map[key] = session;

return;

}

// Put new entry

if (this._sessionCache.list.length >= this.maxCachedSessions) {

const oldKey = ArrayPrototypeShift(this._sessionCache.list);

debug('evicting %j', oldKey);

delete this._sessionCache.map[oldKey];

}

ArrayPrototypePush(this._sessionCache.list, key);

this._sessionCache.map[key] = session;

};

Agent.prototype._evictSession = function _evictSession(key) {

const index = ArrayPrototypeIndexOf(this._sessionCache.list, key);

if (index === -1)

return;

ArrayPrototypeSplice(this._sessionCache.list, index, 1);

delete this._sessionCache.map[key];

};

const globalAgent = getGlobalAgent(getOptionValue('--use-env-proxy') ? process.env : undefined, Agent);

function hasAgentCheckServerIdentity(options) {

let { agent } = options;

if (agent === false)

return false;

if (agent === null || agent === undefined) {

if (typeof options.createConnection === 'function')

return false;

agent = module.exports.globalAgent;

}

return agent?.options?.checkServerIdentity !== undefined;

}

/**

* Makes a request to a secure web server.

* @param {...any} args

* @returns {ClientRequest}

function request(...args) {

let options = {};

if (typeof args[0] === 'string') {

const urlStr = ArrayPrototypeShift(args);

options = urlToHttpOptions(new URL(urlStr));

} else if (isURL(args[0])) {

options = urlToHttpOptions(ArrayPrototypeShift(args));

}

if (args[0] && typeof args[0] !== 'function') {

ObjectAssign(options, ArrayPrototypeShift(args));

}

if (options.checkServerIdentity !== undefined &&

options.checkServerIdentity !== tls.checkServerIdentity &&

!hasAgentCheckServerIdentity(options)) {

options[kPerRequestCheckServerIdentity] =

++perRequestCheckServerIdentityIndex;

}

options._defaultAgent = module.exports.globalAgent;

ArrayPrototypeUnshift(args, options);

return ReflectConstruct(ClientRequest, args);

}

/**

* Makes a GET request to a secure web server.

* @param {string | URL} input

* @param {{

* agent?: Agent | boolean;

* auth?: string;

* createConnection?: Function;

* defaultPort?: number;

* family?: number;

* headers?: object;

* hints?: number;

* host?: string;

* hostname?: string;

* insecureHTTPParser?: boolean;

* joinDuplicateHeaders?: boolean;

* localAddress?: string;

* localPort?: number;

* lookup?: Function;

* maxHeaderSize?: number;

* method?: string;

* path?: string;

* port?: number;

* protocol?: string;

* setHost?: boolean;

* socketPath?: string;

* timeout?: number;

* signal?: AbortSignal;

* uniqueHeaders?: Array;

* } | string | URL} [options]

* @param {Function} [cb]

* @returns {ClientRequest}

function get(input, options, cb) {

const req = request(input, options, cb);

req.end();

return req;

}

module.exports = {

Agent,

globalAgent,

Server,

createServer,

get,

request,

};

node/lib/https.js at main · nodejs/node · GitHub

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node/lib/https.js at main · nodejs/node · GitHub

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