@tdb/util.server/lib/express/middleware/staticRoutes.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var express = require("express");
var url_1 = require("url");
var libs_1 = require("../../libs");
var cache = new libs_1.Cache();
function staticRoutes(args) {
    var _this = this;
    var router = express.Router();
    var baseUrl = clean(args.base);
    var route = "/" + baseUrl + "/*";
    var dir = args.dir;
    var getInfo = function (pathname) {
        if (pathname === void 0) { pathname = ''; }
        return tslib_1.__awaiter(_this, void 0, void 0, function () {
            var path, file, exists;
            return tslib_1.__generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        path = clean(pathname.substr(baseUrl.length + 1));
                        file = libs_1.fsPath.join(dir, baseUrl, path);
                        return [4, libs_1.fs.pathExists(file)];
                    case 1:
                        exists = _a.sent();
                        return [2, { file: file, exists: exists }];
                }
            });
        });
    };
    router.get(route, function (req, res) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
        var url, pathname, force, cacheKey, cached, info, _a, status, error;
        return tslib_1.__generator(this, function (_b) {
            switch (_b.label) {
                case 0:
                    url = url_1.parse(req.url, false);
                    pathname = url.pathname;
                    force = libs_1.queryString.isFlag(['force', 'f'], req.query);
                    cacheKey = "STATIC/" + pathname;
                    if (force) {
                        cache.del(cacheKey);
                    }
                    cached = cache.get(cacheKey);
                    if (!cached) return [3, 1];
                    _a = cached;
                    return [3, 3];
                case 1: return [4, getInfo(pathname)];
                case 2:
                    _a = _b.sent();
                    _b.label = 3;
                case 3:
                    info = _a;
                    cache.put(cacheKey, info);
                    status = info.exists ? 200 : 404;
                    error = info.exists ? undefined : "File not found.";
                    return [2, info.exists
                            ? res.sendFile(info.file)
                            : res.status(200).send({ status: status, error: error, path: pathname })];
            }
        });
    }); });
    return router;
}
exports.staticRoutes = staticRoutes;
var clean = function (value) { return value.replace(/^\//, '').replace(/\/$/, ''); };
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