wireguard-tools
Version:
The best way to interact with WireGuard from Node
163 lines (162 loc) • 8.66 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseConfigString = exports.generateConfigString = void 0;
/**
* Find a part in the string based on left hand side of '='
* eg:
* string === 'PrivateKey = 123456'
* part === 'PrivateKey'
* return value = ['123456']
* OR
* string === 'PrivateKey = 123456'
* part === 'SomethingElse'
* return value = undefined
*/
var findPartInString = function (_a) {
var string = _a.string, part = _a.part;
var parts = string.split('\n');
var wantedParts = parts.filter(function (x) { return x.includes(part); });
if (!wantedParts.length)
return undefined;
var values = wantedParts
.map(function (x) { var _a, _b; return (_b = (_a = x.match(/((?<==).)(.+$)/gm)) === null || _a === void 0 ? void 0 : _a[0]) === null || _b === void 0 ? void 0 : _b.trim(); })
.filter(function (x) { return x !== undefined; });
if (!values.length)
return undefined;
return values;
};
/** Generate a string version of the WgConfig suitable for saving to a Wireguard Config file (wg0.conf) */
var generateConfigString = function (conf) {
var s = [];
var wgInterface = conf.wgInterface, peers = conf.peers;
var address = wgInterface.address, privateKey = wgInterface.privateKey, listenPort = wgInterface.listenPort, name = wgInterface.name, dns = wgInterface.dns, mtu = wgInterface.mtu, table = wgInterface.table, preUp = wgInterface.preUp, postUp = wgInterface.postUp, preDown = wgInterface.preDown, postDown = wgInterface.postDown;
// add interface
s.push('[Interface]');
if (name !== undefined)
s.push("# Name = " + name);
if (address !== undefined && address.length)
s.push("Address = " + address.join(','));
if (privateKey)
s.push("PrivateKey = " + privateKey);
if (listenPort)
s.push("ListenPort = " + listenPort);
if (dns && dns.length)
s.push("DNS = " + dns.join(','));
if (mtu)
s.push("MTU = " + mtu);
if (table)
s.push("Table = " + table);
if (preUp && preUp.length)
s.push(preUp.map(function (x) { return "PreUp = " + x; }).join('\n'));
if (postUp && postUp.length)
s.push(postUp.map(function (x) { return "PostUp = " + x; }).join('\n'));
if (preDown && preDown.length)
s.push(preDown.map(function (x) { return "PreDown = " + x; }).join('\n'));
if (postDown && postDown.length)
s.push(postDown.map(function (x) { return "PostDown = " + x; }).join('\n'));
// add peers
if (peers === null || peers === void 0 ? void 0 : peers.length) {
peers.forEach(function (peer) {
s.push('');
s.push('[Peer]');
if (peer.name)
s.push("# Name = " + peer.name);
if (peer.publicKey)
s.push("PublicKey = " + peer.publicKey);
if (peer.allowedIps && peer.allowedIps.length)
s.push("AllowedIPs = " + peer.allowedIps.join(','));
if (peer.endpoint)
s.push("Endpoint = " + peer.endpoint);
if (peer.preSharedKey)
s.push("PresharedKey = " + peer.preSharedKey);
if (peer.persistentKeepalive)
s.push("PersistentKeepalive = " + peer.persistentKeepalive);
});
}
return s.join('\n');
};
exports.generateConfigString = generateConfigString;
/**
* Parse a WireGuard config file (wg0.conf) into a WgConfig object for use in Javascript-land
* If no valid interface is found in the config, it will throw an error
* If a peer in the peers array is invalid, it will throw an error
*/
var parseConfigString = function (configString) {
var _a, _b, _c, _d, _e, _f, _g, _h, _j;
var interFaceReg = /\[Interface\][^\[]*/gm;
var peerReg = /\[Peer\][^\[]*/gm;
var interfaces = configString.match(interFaceReg);
var interfaceString = interfaces === null || interfaces === void 0 ? void 0 : interfaces[0];
if (!interfaceString)
throw { code: 'no_valid_interface', message: "No interface found in config:\n" + configString };
var maybeAddress = (_b = (_a = findPartInString({ string: interfaceString, part: 'Address' })) === null || _a === void 0 ? void 0 : _a[0]) === null || _b === void 0 ? void 0 : _b.split(',');
var address = maybeAddress ? maybeAddress.filter(function (x) { return x !== undefined; }) : undefined;
if (!address || !address.length)
throw { code: 'no_valid_interface', message: "No address found in config:\n" + configString };
var privateKey = (_c = findPartInString({ string: interfaceString, part: 'PrivateKey' })) === null || _c === void 0 ? void 0 : _c[0];
if (!privateKey)
throw { code: 'no_valid_interface', message: "No privateKey found in config:\n" + configString };
var maybeListenPort = (_d = findPartInString({ string: interfaceString, part: 'ListenPort' })) === null || _d === void 0 ? void 0 : _d[0];
var listenPort = maybeListenPort ? parseInt(maybeListenPort) : undefined;
var maybeMTU = (_e = findPartInString({ string: interfaceString, part: 'MTU' })) === null || _e === void 0 ? void 0 : _e[0];
var mtu = maybeMTU ? parseInt(maybeMTU) : undefined;
var maybeDns = (_g = (_f = findPartInString({ string: interfaceString, part: 'DNS' })) === null || _f === void 0 ? void 0 : _f[0]) === null || _g === void 0 ? void 0 : _g.split(',').filter(function (x) { return x !== undefined; });
var dns = (maybeDns === null || maybeDns === void 0 ? void 0 : maybeDns.length) ? maybeDns : undefined;
var wgInterface = {
// required keys
address: address,
privateKey: privateKey,
// optional keys
dns: dns,
listenPort: listenPort,
mtu: mtu,
name: (_h = findPartInString({ string: interfaceString, part: 'Name' })) === null || _h === void 0 ? void 0 : _h[0],
table: (_j = findPartInString({ string: interfaceString, part: 'Table' })) === null || _j === void 0 ? void 0 : _j[0],
preUp: findPartInString({ string: interfaceString, part: 'PreUp' }),
postUp: findPartInString({ string: interfaceString, part: 'PostUp' }),
preDown: findPartInString({ string: interfaceString, part: 'PreDown' }),
postDown: findPartInString({ string: interfaceString, part: 'PostDown' })
};
// remove any undefined keys
var key;
for (key in wgInterface)
if (wgInterface[key] === undefined)
delete wgInterface[key];
var peerStrings = configString.match(peerReg);
var peers = !peerStrings ? [] : peerStrings.map(function (x) {
var _a, _b, _c, _d, _e, _f, _g;
if (!x)
return undefined;
var maybeAllowedIps = (_b = (_a = findPartInString({ string: x, part: 'AllowedIPs' })) === null || _a === void 0 ? void 0 : _a[0]) === null || _b === void 0 ? void 0 : _b.split(',');
var allowedIps = maybeAllowedIps ? maybeAllowedIps.filter(function (y) { return y !== undefined; }) : undefined;
if (!allowedIps || !allowedIps.length)
throw { code: 'invalid_peer', message: "No allowedIps found in peer:\n" + x };
var publicKey = (_c = findPartInString({ string: x, part: 'PublicKey' })) === null || _c === void 0 ? void 0 : _c[0];
if (!publicKey)
throw { code: 'invalid_peer', message: "No publicKey found in peer:\n" + x };
var maybePersistentKeepAlive = (_d = findPartInString({ string: interfaceString, part: 'PersistentKeepalive' })) === null || _d === void 0 ? void 0 : _d[0];
var persistentKeepalive = maybePersistentKeepAlive ? parseInt(maybePersistentKeepAlive) : undefined;
var peer = {
// required keys
allowedIps: allowedIps,
publicKey: publicKey,
// optional keys
persistentKeepalive: persistentKeepalive,
name: (_e = findPartInString({ string: x, part: 'Name' })) === null || _e === void 0 ? void 0 : _e[0],
endpoint: (_f = findPartInString({ string: x, part: 'Endpoint' })) === null || _f === void 0 ? void 0 : _f[0],
preSharedKey: (_g = findPartInString({ string: x, part: 'PresharedKey' })) === null || _g === void 0 ? void 0 : _g[0]
};
// remove undefined keys
var peerKey;
for (peerKey in peer)
if (peer[peerKey] === undefined)
delete peer[peerKey];
return peer;
}).filter(function (x) { return x !== undefined; });
var returnVal = {
wgInterface: wgInterface,
peers: peers
};
return returnVal;
};
exports.parseConfigString = parseConfigString;