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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 tls = require('tls');
const SSL_OP_CIPHER_SERVER_PREFERENCE =
process.binding('constants').crypto.SSL_OP_CIPHER_SERVER_PREFERENCE;
// Lazily loaded
var crypto = null;
const binding = process.binding('crypto');
const NativeSecureContext = binding.SecureContext;
function SecureContext(secureProtocol, secureOptions, context) {
if (!(this instanceof SecureContext)) {
return new SecureContext(secureProtocol, secureOptions, context);
}
if (context) {
this.context = context;
} else {
this.context = new NativeSecureContext();
if (secureProtocol) {
this.context.init(secureProtocol);
} else {
this.context.init();
}
}
if (secureOptions) this.context.setOptions(secureOptions);
}
exports.SecureContext = SecureContext;
exports.createSecureContext = function createSecureContext(options, context) {
if (!options) options = {};
var secureOptions = options.secureOptions;
if (options.honorCipherOrder)
secureOptions |= SSL_OP_CIPHER_SERVER_PREFERENCE;
var c = new SecureContext(options.secureProtocol, secureOptions, context);
var i;
if (context) return c;
// NOTE: It's important to add CA before the cert to be able to load
// cert's issuer in C++ code.
if (options.ca) {
if (Array.isArray(options.ca)) {
for (i = 0; i < options.ca.length; i++) {
c.context.addCACert(options.ca[i]);
}
} else {
c.context.addCACert(options.ca);
}
} else {
c.context.addRootCerts();
}
if (options.cert) {
if (Array.isArray(options.cert)) {
for (i = 0; i < options.cert.length; i++)
c.context.setCert(options.cert[i]);
} else {
c.context.setCert(options.cert);
}
}
// NOTE: It is important to set the key after the cert.
// `ssl_set_pkey` returns `0` when the key does not much the cert, but
// `ssl_set_cert` returns `1` and nullifies the key in the SSL structure
// which leads to the crash later on.
if (options.key) {
if (Array.isArray(options.key)) {
for (i = 0; i < options.key.length; i++) {
const key = options.key[i];
const passphrase = key.passphrase || options.passphrase;
c.context.setKey(key.pem || key, passphrase);
}
} else {
c.context.setKey(options.key, options.passphrase);
}
}
if (options.ciphers)
c.context.setCiphers(options.ciphers);
else
c.context.setCiphers(tls.DEFAULT_CIPHERS);
if (options.ecdhCurve === undefined)
c.context.setECDHCurve(tls.DEFAULT_ECDH_CURVE);
else if (options.ecdhCurve)
c.context.setECDHCurve(options.ecdhCurve);
if (options.dhparam) {
const warning = c.context.setDHParam(options.dhparam);
if (warning)
process.emitWarning(warning, 'SecurityWarning');
}
if (options.crl) {
if (Array.isArray(options.crl)) {
for (i = 0; i < options.crl.length; i++) {
c.context.addCRL(options.crl[i]);
}
} else {
c.context.addCRL(options.crl);
}
}
if (options.sessionIdContext) {
c.context.setSessionIdContext(options.sessionIdContext);
}
if (options.pfx) {
var pfx = options.pfx;
var passphrase = options.passphrase;
if (!crypto)
crypto = require('crypto');
pfx = crypto._toBuf(pfx);
if (passphrase)
passphrase = crypto._toBuf(passphrase);
if (passphrase) {
c.context.loadPKCS12(pfx, passphrase);
} else {
c.context.loadPKCS12(pfx);
}
}
// Do not keep read/write buffers in free list for OpenSSL < 1.1.0. (For
// OpenSSL 1.1.0, buffers are malloced and freed without the use of a
// freelist.)
if (options.singleUse) {
c.singleUse = true;
c.context.setFreeListLength(0);
}
return c;
};
exports.translatePeerCertificate = function translatePeerCertificate(c) {
if (!c)
return null;
if (c.issuer) c.issuer = tls.parseCertString(c.issuer);
if (c.issuerCertificate && c.issuerCertificate !== c) {
c.issuerCertificate = translatePeerCertificate(c.issuerCertificate);
}
if (c.subject) c.subject = tls.parseCertString(c.subject);
if (c.infoAccess) {
var info = c.infoAccess;
c.infoAccess = {};
// XXX: More key validation?
info.replace(/([^\n:]*):([^\n]*)(?:\n|$)/g, function(all, key, val) {
if (key === '__proto__')
return;
if (c.infoAccess.hasOwnProperty(key))
c.infoAccess[key].push(val);
else
c.infoAccess[key] = [val];
});
}
return c;
};