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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { core, internals, primordials } from "ext:core/mod.js";
const { internalRidSymbol } = core;
import {
op_net_accept_tls,
op_net_connect_tls,
op_net_listen_tls,
op_tls_cert_resolver_create,
op_tls_cert_resolver_poll,
op_tls_cert_resolver_resolve,
op_tls_cert_resolver_resolve_error,
op_tls_handshake,
op_tls_key_null,
op_tls_key_static,
op_tls_start,
} from "ext:core/ops";
const {
ObjectDefineProperty,
TypeError,
SymbolFor,
} = primordials;
import { Conn, Listener, validatePort } from "ext:deno_net/01_net.js";
class TlsConn extends Conn {
#rid = 0;
constructor(rid, remoteAddr, localAddr) {
super(rid, remoteAddr, localAddr);
ObjectDefineProperty(this, internalRidSymbol, {
__proto__: null,
enumerable: false,
value: rid,
});
this.#rid = rid;
}
handshake() {
return op_tls_handshake(this.#rid);
}
}
async function connectTls({
port,
hostname = "127.0.0.1",
transport = "tcp",
caCerts = [],
alpnProtocols = undefined,
keyFormat = undefined,
cert = undefined,
key = undefined,
}) {
if (transport !== "tcp") {
throw new TypeError(`Unsupported transport: '${transport}'`);
}
const keyPair = loadTlsKeyPair("Deno.connectTls", {
keyFormat,
cert,
key,
});
// TODO(mmastrac): We only expose this feature via symbol for now. This should actually be a feature
// in Deno.connectTls, however.
const serverName = arguments[0][serverNameSymbol] ?? null;
const { 0: rid, 1: localAddr, 2: remoteAddr } = await op_net_connect_tls(
{ hostname, port },
{ caCerts, alpnProtocols, serverName },
keyPair,
);
localAddr.transport = "tcp";
remoteAddr.transport = "tcp";
return new TlsConn(rid, remoteAddr, localAddr);
}
class TlsListener extends Listener {
#rid = 0;
constructor(rid, addr) {
super(rid, addr);
ObjectDefineProperty(this, internalRidSymbol, {
__proto__: null,
enumerable: false,
value: rid,
});
this.#rid = rid;
}
async accept() {
const { 0: rid, 1: localAddr, 2: remoteAddr } = await op_net_accept_tls(
this.#rid,
);
localAddr.transport = "tcp";
remoteAddr.transport = "tcp";
return new TlsConn(rid, remoteAddr, localAddr);
}
}
/**
* Returns true if this object has the shape of one of the certified key material
* interfaces.
*/
function hasTlsKeyPairOptions(options) {
// TODO(mmastrac): remove this temporary symbol when the API lands
if (options[resolverSymbol] !== undefined) {
return true;
}
return (options.cert !== undefined || options.key !== undefined);
}
/**
* Loads a TLS keypair from one of the various options. If no key material is provided,
* returns a special Null keypair.
*/
function loadTlsKeyPair(api, {
keyFormat,
cert,
key,
}) {
// TODO(mmastrac): remove this temporary symbol when the API lands
if (arguments[1][resolverSymbol] !== undefined) {
return createTlsKeyResolver(arguments[1][resolverSymbol]);
}
// Check for "pem" format
if (keyFormat !== undefined && keyFormat !== "pem") {
throw new TypeError(
`If "keyFormat" is specified, it must be "pem": received "${keyFormat}"`,
);
}
if (cert !== undefined && key === undefined) {
throw new TypeError(
`If \`cert\` is specified, \`key\` must be specified as well for \`${api}\``,
);
}
if (cert === undefined && key !== undefined) {
throw new TypeError(
`If \`key\` is specified, \`cert\` must be specified as well for \`${api}\``,
);
}
if (cert !== undefined) {
return op_tls_key_static(cert, key);
} else {
return op_tls_key_null();
}
}
function listenTls({
port,
hostname = "0.0.0.0",
transport = "tcp",
alpnProtocols = undefined,
reusePort = false,
}) {
if (transport !== "tcp") {
throw new TypeError(`Unsupported transport: '${transport}'`);
}
port = validatePort(port);
if (!hasTlsKeyPairOptions(arguments[0])) {
throw new TypeError(
"A key and certificate are required for `Deno.listenTls`",
);
}
const keyPair = loadTlsKeyPair("Deno.listenTls", arguments[0]);
const { 0: rid, 1: localAddr } = op_net_listen_tls(
{ hostname, port },
{ alpnProtocols, reusePort },
keyPair,
);
return new TlsListener(rid, localAddr);
}
// deno-lint-ignore require-await
async function startTls(
conn,
{
hostname = "127.0.0.1",
caCerts = [],
alpnProtocols = undefined,
} = { __proto__: null },
) {
const { 0: rid, 1: localAddr, 2: remoteAddr } = op_tls_start({
rid: conn[internalRidSymbol],
hostname,
caCerts,
alpnProtocols,
});
return new TlsConn(rid, remoteAddr, localAddr);
}
const resolverSymbol = SymbolFor("unstableSniResolver");
const serverNameSymbol = SymbolFor("unstableServerName");
function createTlsKeyResolver(callback) {
const { 0: resolver, 1: lookup } = op_tls_cert_resolver_create();
(async () => {
while (true) {
const sni = await op_tls_cert_resolver_poll(lookup);
if (typeof sni !== "string") {
break;
}
try {
const key = await callback(sni);
if (!hasTlsKeyPairOptions(key)) {
op_tls_cert_resolver_resolve_error(lookup, sni, "Invalid key");
} else {
const resolved = loadTlsKeyPair("Deno.listenTls", key);
op_tls_cert_resolver_resolve(lookup, sni, resolved);
}
} catch (e) {
op_tls_cert_resolver_resolve_error(lookup, sni, e.message);
}
}
})();
return resolver;
}
internals.resolverSymbol = resolverSymbol;
internals.serverNameSymbol = serverNameSymbol;
internals.createTlsKeyResolver = createTlsKeyResolver;
export {
connectTls,
hasTlsKeyPairOptions,
listenTls,
loadTlsKeyPair,
startTls,
TlsConn,
TlsListener,
};
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