@dazejs/framework/dist/http/router/dispatcher.js

Daze.js - A powerful web framework for Node.js

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Dispatcher = void 0;
const fs = __importStar(require("fs"));
const mime_types_1 = __importDefault(require("mime-types"));
const path = __importStar(require("path"));
const util_1 = require("util");
const container_1 = require("../../container");
const not_found_http_error_1 = require("../../errors/not-found-http-error");
const response_1 = require("../response");
const defaultPublicOptions = {
    maxage: 0,
    gzip: true,
    br: true,
};
class Dispatcher {
    constructor(request, route) {
        this.app = container_1.Container.get('app');
        this.request = request;
        this.route = route;
        this.publicOptions = Object.assign({}, defaultPublicOptions);
    }
    isReadRequest() {
        return this.request.isHead() || this.request.isGet();
    }
    decodePath(undecodePath) {
        try {
            return decodeURIComponent(undecodePath);
        }
        catch (err) {
            return false;
        }
    }
    async resolve() {
        if (!this.isReadRequest() ||
            !this.app.get('config').get('app.public'))
            return this.dispatchToRoute();
        let publicPrefix = this.app.get('config').get('app.publicPrefix', '');
        publicPrefix = publicPrefix.substr(path.parse(publicPrefix).root.length);
        let requestPath = this.request.getPath();
        requestPath = this.decodePath(requestPath.substr(path.parse(requestPath).root.length));
        if (requestPath === false)
            return new response_1.Response().BadRequest('failed to decode url');
        if (!requestPath.startsWith(publicPrefix))
            return this.dispatchToRoute();
        const assetsPath = path.relative(publicPrefix, requestPath);
        const staticPath = path.resolve(this.app.publicPath, assetsPath);
        let stats;
        try {
            stats = await (0, util_1.promisify)(fs.stat)(staticPath);
        }
        catch (err) {
            if (['ENOENT', 'ENAMETOOLONG', 'ENOTDIR'].includes(err.code)) {
                return this.dispatchToRoute();
            }
        }
        if (!stats || (stats === null || stats === void 0 ? void 0 : stats.isDirectory())) {
            return this.dispatchToRoute();
        }
        const response = new response_1.Response();
        response.setHeader('Content-Length', stats.size);
        if (!this.request.getHeader('Last-Modified'))
            response.setHeader('Last-Modified', stats.mtime.toUTCString());
        if (!this.request.getHeader('Cache-Control')) {
            const directives = [`max-age=${this.publicOptions.maxage / 1000 | 0}`];
            response.setHeader('Cache-Control', directives.join(','));
        }
        response.setHeader('Content-Type', mime_types_1.default.lookup(path.extname(staticPath)));
        response.setData(fs.createReadStream(staticPath));
        return response;
    }
    async dispatchToRoute() {
        if (!this.route) {
            throw this.createNotFountError();
        }
        return this.route.middleware
            .handle(this.request, async (request) => this.route.resolve(request))
            .catch((err) => {
            throw err;
        });
    }
    createNotFountError() {
        return new not_found_http_error_1.NotFoundHttpError('Not Found');
    }
}
exports.Dispatcher = Dispatcher;
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