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secure-pair.js
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secure-pair.js
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'use strict';
const EventEmitter = require('events');
const { kEmptyObject } = require('internal/util');
const { Duplex } = require('stream');
const _tls_wrap = require('_tls_wrap');
const _tls_common = require('_tls_common');
const {
Symbol,
ReflectConstruct,
} = primordials;
const kCallback = Symbol('Callback');
const kOtherSide = Symbol('Other');
class DuplexSocket extends Duplex {
constructor() {
super();
this[kCallback] = null;
this[kOtherSide] = null;
}
_read() {
const callback = this[kCallback];
if (callback) {
this[kCallback] = null;
callback();
}
}
_write(chunk, encoding, callback) {
if (chunk.length === 0) {
process.nextTick(callback);
} else {
this[kOtherSide].push(chunk);
this[kOtherSide][kCallback] = callback;
}
}
_final(callback) {
this[kOtherSide].on('end', callback);
this[kOtherSide].push(null);
}
}
class DuplexPair {
constructor() {
this.socket1 = new DuplexSocket();
this.socket2 = new DuplexSocket();
this.socket1[kOtherSide] = this.socket2;
this.socket2[kOtherSide] = this.socket1;
}
}
class SecurePair extends EventEmitter {
constructor(secureContext = _tls_common.createSecureContext(),
isServer = false,
requestCert = !isServer,
rejectUnauthorized = false,
options = kEmptyObject) {
super();
const { socket1, socket2 } = new DuplexPair();
this.server = options.server;
this.credentials = secureContext;
this.encrypted = socket1;
this.cleartext = new _tls_wrap.TLSSocket(socket2, {
secureContext,
isServer,
requestCert,
rejectUnauthorized,
...options,
});
this.cleartext.once('secure', () => this.emit('secure'));
}
destroy() {
this.cleartext.destroy();
this.encrypted.destroy();
}
}
exports.createSecurePair = function createSecurePair(...args) {
return ReflectConstruct(SecurePair, args);
};