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//
// 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 {
Array,
ArrayIsArray,
ArrayPrototypeForEach,
ArrayPrototypeIncludes,
ArrayPrototypeJoin,
ArrayPrototypePush,
ArrayPrototypeReduce,
ArrayPrototypeSome,
JSONParse,
ObjectDefineProperty,
ObjectFreeze,
RegExpPrototypeExec,
RegExpPrototypeSymbolReplace,
StringFromCharCode,
StringPrototypeCharCodeAt,
StringPrototypeEndsWith,
StringPrototypeIncludes,
StringPrototypeIndexOf,
StringPrototypeSlice,
StringPrototypeSplit,
StringPrototypeStartsWith,
StringPrototypeSubstring,
} = primordials;
const {
ERR_TLS_CERT_ALTNAME_FORMAT,
ERR_TLS_CERT_ALTNAME_INVALID,
ERR_OUT_OF_RANGE
} = require('internal/errors').codes;
const internalUtil = require('internal/util');
internalUtil.assertCrypto();
const {
isArrayBufferView,
isUint8Array,
} = require('internal/util/types');
const net = require('net');
const { getOptionValue } = require('internal/options');
const { getRootCertificates, getSSLCiphers } = internalBinding('crypto');
const { Buffer } = require('buffer');
const { canonicalizeIP } = internalBinding('cares_wrap');
const _tls_common = require('_tls_common');
const _tls_wrap = require('_tls_wrap');
const { createSecurePair } = require('internal/tls/secure-pair');
// Allow {CLIENT_RENEG_LIMIT} client-initiated session renegotiations
// every {CLIENT_RENEG_WINDOW} seconds. An error event is emitted if more
// renegotiations are seen. The settings are applied to all remote client
// connections.
exports.CLIENT_RENEG_LIMIT = 3;
exports.CLIENT_RENEG_WINDOW = 600;
exports.DEFAULT_CIPHERS = getOptionValue('--tls-cipher-list');
exports.DEFAULT_ECDH_CURVE = 'auto';
if (getOptionValue('--tls-min-v1.0'))
exports.DEFAULT_MIN_VERSION = 'TLSv1';
else if (getOptionValue('--tls-min-v1.1'))
exports.DEFAULT_MIN_VERSION = 'TLSv1.1';
else if (getOptionValue('--tls-min-v1.2'))
exports.DEFAULT_MIN_VERSION = 'TLSv1.2';
else if (getOptionValue('--tls-min-v1.3'))
exports.DEFAULT_MIN_VERSION = 'TLSv1.3';
else
exports.DEFAULT_MIN_VERSION = 'TLSv1.2';
if (getOptionValue('--tls-max-v1.3'))
exports.DEFAULT_MAX_VERSION = 'TLSv1.3';
else if (getOptionValue('--tls-max-v1.2'))
exports.DEFAULT_MAX_VERSION = 'TLSv1.2';
else
exports.DEFAULT_MAX_VERSION = 'TLSv1.3'; // Will depend on node version.
exports.getCiphers = internalUtil.cachedResult(
() => internalUtil.filterDuplicateStrings(getSSLCiphers(), true)
);
let rootCertificates;
function cacheRootCertificates() {
rootCertificates = ObjectFreeze(getRootCertificates());
}
ObjectDefineProperty(exports, 'rootCertificates', {
__proto__: null,
configurable: false,
enumerable: true,
get: () => {
// Out-of-line caching to promote inlining the getter.
if (!rootCertificates) cacheRootCertificates();
return rootCertificates;
},
});
// Convert protocols array into valid OpenSSL protocols list
// ("\x06spdy/2\x08http/1.1\x08http/1.0")
function convertProtocols(protocols) {
const lens = new Array(protocols.length);
const buff = Buffer.allocUnsafe(ArrayPrototypeReduce(protocols, (p, c, i) => {
const len = Buffer.byteLength(c);
if (len > 255) {
throw new ERR_OUT_OF_RANGE('The byte length of the protocol at index ' +
`${i} exceeds the maximum length.`, '<= 255', len, true);
}
lens[i] = len;
return p + 1 + len;
}, 0));
let offset = 0;
for (let i = 0, c = protocols.length; i < c; i++) {
buff[offset++] = lens[i];
buff.write(protocols[i], offset);
offset += lens[i];
}
return buff;
}
exports.convertALPNProtocols = function convertALPNProtocols(protocols, out) {
// If protocols is Array - translate it into buffer
if (ArrayIsArray(protocols)) {
out.ALPNProtocols = convertProtocols(protocols);
} else if (isUint8Array(protocols)) {
// Copy new buffer not to be modified by user.
out.ALPNProtocols = Buffer.from(protocols);
} else if (isArrayBufferView(protocols)) {
out.ALPNProtocols = Buffer.from(protocols.buffer.slice(
protocols.byteOffset,
protocols.byteOffset + protocols.byteLength
));
}
};
function unfqdn(host) {
return RegExpPrototypeSymbolReplace(/[.]$/, host, '');
}
// String#toLowerCase() is locale-sensitive so we use
// a conservative version that only lowercases A-Z.
function toLowerCase(c) {
return StringFromCharCode(32 + StringPrototypeCharCodeAt(c, 0));
}
function splitHost(host) {
return StringPrototypeSplit(
RegExpPrototypeSymbolReplace(/[A-Z]/g, unfqdn(host), toLowerCase),
'.'
);
}
function check(hostParts, pattern, wildcards) {
// Empty strings, null, undefined, etc. never match.
if (!pattern)
return false;
const patternParts = splitHost(pattern);
if (hostParts.length !== patternParts.length)
return false;
// Pattern has empty components, e.g. "bad..example.com".
if (ArrayPrototypeIncludes(patternParts, ''))
return false;
// RFC 6125 allows IDNA U-labels (Unicode) in names but we have no
// good way to detect their encoding or normalize them so we simply
// reject them. Control characters and blanks are rejected as well
// because nothing good can come from accepting them.
const isBad = (s) => RegExpPrototypeExec(/[^\u0021-\u007F]/u, s) !== null;
if (ArrayPrototypeSome(patternParts, isBad))
return false;
// Check host parts from right to left first.
for (let i = hostParts.length - 1; i > 0; i -= 1) {
if (hostParts[i] !== patternParts[i])
return false;
}
const hostSubdomain = hostParts[0];
const patternSubdomain = patternParts[0];
const patternSubdomainParts = StringPrototypeSplit(patternSubdomain, '*');
// Short-circuit when the subdomain does not contain a wildcard.
// RFC 6125 does not allow wildcard substitution for components
// containing IDNA A-labels (Punycode) so match those verbatim.
if (patternSubdomainParts.length === 1 ||
StringPrototypeIncludes(patternSubdomain, 'xn--'))
return hostSubdomain === patternSubdomain;
if (!wildcards)
return false;
// More than one wildcard is always wrong.
if (patternSubdomainParts.length > 2)
return false;
// *.tld wildcards are not allowed.
if (patternParts.length <= 2)
return false;
const { 0: prefix, 1: suffix } = patternSubdomainParts;
if (prefix.length + suffix.length > hostSubdomain.length)
return false;
if (!StringPrototypeStartsWith(hostSubdomain, prefix))
return false;
if (!StringPrototypeEndsWith(hostSubdomain, suffix))
return false;
return true;
}
// This pattern is used to determine the length of escaped sequences within
// the subject alt names string. It allows any valid JSON string literal.
// This MUST match the JSON specification (ECMA-404 / RFC8259) exactly.
const jsonStringPattern =
// eslint-disable-next-line no-control-regex
/^"(?:[^"\\\u0000-\u001f]|\\(?:["\\/bfnrt]|u[0-9a-fA-F]{4}))*"/;
function splitEscapedAltNames(altNames) {
const result = [];
let currentToken = '';
let offset = 0;
while (offset !== altNames.length) {
const nextSep = StringPrototypeIndexOf(altNames, ', ', offset);
const nextQuote = StringPrototypeIndexOf(altNames, '"', offset);
if (nextQuote !== -1 && (nextSep === -1 || nextQuote < nextSep)) {
// There is a quote character and there is no separator before the quote.
currentToken += StringPrototypeSubstring(altNames, offset, nextQuote);
const match = RegExpPrototypeExec(
jsonStringPattern, StringPrototypeSubstring(altNames, nextQuote));
if (!match) {
throw new ERR_TLS_CERT_ALTNAME_FORMAT();
}
currentToken += JSONParse(match[0]);
offset = nextQuote + match[0].length;
} else if (nextSep !== -1) {
// There is a separator and no quote before it.
currentToken += StringPrototypeSubstring(altNames, offset, nextSep);
ArrayPrototypePush(result, currentToken);
currentToken = '';
offset = nextSep + 2;
} else {
currentToken += StringPrototypeSubstring(altNames, offset);
offset = altNames.length;
}
}
ArrayPrototypePush(result, currentToken);
return result;
}
exports.checkServerIdentity = function checkServerIdentity(hostname, cert) {
const subject = cert.subject;
const altNames = cert.subjectaltname;
const dnsNames = [];
const ips = [];
hostname = '' + hostname;
if (altNames) {
const splitAltNames = StringPrototypeIncludes(altNames, '"') ?
splitEscapedAltNames(altNames) :
StringPrototypeSplit(altNames, ', ');
ArrayPrototypeForEach(splitAltNames, (name) => {
if (StringPrototypeStartsWith(name, 'DNS:')) {
ArrayPrototypePush(dnsNames, StringPrototypeSlice(name, 4));
} else if (StringPrototypeStartsWith(name, 'IP Address:')) {
ArrayPrototypePush(ips, canonicalizeIP(StringPrototypeSlice(name, 11)));
}
});
}
let valid = false;
let reason = 'Unknown reason';
hostname = unfqdn(hostname); // Remove trailing dot for error messages.
if (net.isIP(hostname)) {
valid = ArrayPrototypeIncludes(ips, canonicalizeIP(hostname));
if (!valid)
reason = `IP: ${hostname} is not in the cert's list: ` +
ArrayPrototypeJoin(ips, ', ');
} else if (dnsNames.length > 0 || subject?.CN) {
const hostParts = splitHost(hostname);
const wildcard = (pattern) => check(hostParts, pattern, true);
if (dnsNames.length > 0) {
valid = ArrayPrototypeSome(dnsNames, wildcard);
if (!valid)
reason =
`Host: ${hostname}. is not in the cert's altnames: ${altNames}`;
} else {
// Match against Common Name only if no supported identifiers exist.
const cn = subject.CN;
if (ArrayIsArray(cn))
valid = ArrayPrototypeSome(cn, wildcard);
else if (cn)
valid = wildcard(cn);
if (!valid)
reason = `Host: ${hostname}. is not cert's CN: ${cn}`;
}
} else {
reason = 'Cert does not contain a DNS name';
}
if (!valid) {
return new ERR_TLS_CERT_ALTNAME_INVALID(reason, hostname, cert);
}
};
exports.createSecureContext = _tls_common.createSecureContext;
exports.SecureContext = _tls_common.SecureContext;
exports.TLSSocket = _tls_wrap.TLSSocket;
exports.Server = _tls_wrap.Server;
exports.createServer = _tls_wrap.createServer;
exports.connect = _tls_wrap.connect;
exports.createSecurePair = internalUtil.deprecate(
createSecurePair,
'tls.createSecurePair() is deprecated. Please use ' +
'tls.TLSSocket instead.', 'DEP0064');
|