smc-hub
Version:
CoCalc: Backend webserver component
98 lines • 5.22 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.versionCheckFails = exports.init = void 0;
var cookies_1 = __importDefault(require("cookies"));
var consts_1 = require("smc-util/consts");
var base_path_1 = __importDefault(require("smc-util-node/base-path"));
var server_settings_1 = __importDefault(require("../servers/server-settings"));
var logger_1 = __importDefault(require("../logger"));
var minVersion = 0;
var winston = logger_1.default("proxy: version");
// Import to wait until we know the valid min_version before serving.
function init() {
var _a;
return __awaiter(this, void 0, void 0, function () {
var serverSettings;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, server_settings_1.default()];
case 1:
serverSettings = _b.sent();
minVersion = (_a = serverSettings.version["min_version"]) !== null && _a !== void 0 ? _a : 0;
serverSettings.table.on("change", function () {
var _a;
minVersion = (_a = serverSettings.version["min_version"]) !== null && _a !== void 0 ? _a : 0;
});
return [2 /*return*/];
}
});
});
}
exports.init = init;
// Returns true if the version check **fails**
// If res is not null, sends a message. If it is
// null, just returns true but doesn't send a response.
function versionCheckFails(req, res) {
var cookies = new cookies_1.default(req);
/* NOTE: The name of the cookie $VERSION_COOKIE_NAME is
also used in the frontend code file smc-webapp/set-version-cookie.js
but everybody imports it from smc-util/consts.
*/
var rawVal = cookies.get(consts_1.versionCookieName(base_path_1.default));
var version = parseInt(rawVal);
winston.debug("version check version=" + version + ", minVersion=" + minVersion);
if (isNaN(version) || version < minVersion) {
if (res != null) {
// status code 4xx to indicate this is a client problem and not
// 5xx, a server problem
// 426 means "upgrade required"
res.writeHead(426, { "Content-Type": "text/html" });
res.end("426 (UPGRADE REQUIRED): reload CoCalc tab or restart your browser -- version=" + version + " < minVersion=" + minVersion);
}
return true;
}
else {
return false;
}
}
exports.versionCheckFails = versionCheckFails;
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