mojang-auth/Server.js

Mojang authentication client, re-implementing parts of `node-yggdrasil` in classes, and adding support for custom auth servers.

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
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            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
exports.__esModule = true;
exports.setDefaultHost = exports.defaultHost = void 0;
var crypto_1 = require("crypto");
var utils_1 = require("./utils");
var node_fetch_1 = require("node-fetch");
exports.defaultHost = 'https://sessionserver.mojang.com';
exports.setDefaultHost = function (val) {
    exports.defaultHost = val;
};
var Server = /** @class */ (function () {
    function Server(options) {
        Object.assign(this, options);
    }
    /**
     * Client's Mojang handshake call
     * See http://wiki.vg/Protocol_Encryption#Client
     * @param  {String}   accessToken        Client's accessToken
     * @param  {String}   selectedProfile      Client's selectedProfile
     * @param  {String}   serverid     ASCII encoding of the server ID
     * @param  {String}   sharedsecret Server's secret string
     * @param  {String}   serverkey    Server's encoded public key
     * @param  {Function} cb           (is okay, data returned by server)
     * @async
     */
    Server.prototype.join = function (accessToken, selectedProfile, serverid, sharedsecret, serverkey) {
        var _a, _b, _c;
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_d) {
                switch (_d.label) {
                    case 0: return [4 /*yield*/, utils_1["default"].call((_b = (_a = this) === null || _a === void 0 ? void 0 : _a.host) !== null && _b !== void 0 ? _b : exports.defaultHost, 'session/minecraft/join', {
                            accessToken: accessToken,
                            selectedProfile: selectedProfile,
                            serverId: utils_1["default"].mcHexDigest(crypto_1.createHash('sha1').update(serverid).update(sharedsecret).update(serverkey).digest())
                        }, (_c = this) === null || _c === void 0 ? void 0 : _c.agent)];
                    case 1: return [2 /*return*/, _d.sent()];
                }
            });
        });
    };
    /**
     * Server's Mojang handshake call
     * @param  {String}   username     Client's username, case-sensitive
     * @param  {String}   serverid     ASCII encoding of the server ID
     * @param  {String}   sharedsecret Server's secret string
     * @param  {String}   serverkey    Server's encoded public key
     * @param  {Function} cb           (is okay, client info)
     * @async
     */
    Server.prototype.hasJoined = function (username, serverid, sharedsecret, serverkey) {
        var _a, _b, _c;
        return __awaiter(this, void 0, void 0, function () {
            var host, hash, data, body, _d, _e;
            return __generator(this, function (_f) {
                switch (_f.label) {
                    case 0:
                        host = (_b = (_a = this) === null || _a === void 0 ? void 0 : _a.host) !== null && _b !== void 0 ? _b : exports.defaultHost;
                        hash = utils_1["default"].mcHexDigest(crypto_1.createHash('sha1').update(serverid).update(sharedsecret).update(serverkey).digest());
                        return [4 /*yield*/, node_fetch_1["default"](host + "/session/minecraft/hasJoined?username=" + username + "&serverId=" + hash, { agent: (_c = this) === null || _c === void 0 ? void 0 : _c.agent, method: 'GET' })];
                    case 1:
                        data = _f.sent();
                        _e = (_d = JSON).parse;
                        return [4 /*yield*/, data.text()];
                    case 2:
                        body = _e.apply(_d, [_f.sent()]);
                        if (body.id !== undefined)
                            return [2 /*return*/, body];
                        else
                            throw new Error('Failed to verify username!');
                        return [2 /*return*/];
                }
            });
        });
    };
    return Server;
}());
exports["default"] = Server;
Server.prototype.join = utils_1["default"].callbackify(Server.prototype.join, 5);
Server.prototype.hasJoined = utils_1["default"].callbackify(Server.prototype.hasJoined, 4);