2018-06-23 03:26:46 +00:00
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// ENiGMA½
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2022-06-05 20:04:25 +00:00
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const Log = require('../../logger.js').log;
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const ServerModule = require('../../server_module.js').ServerModule;
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const Config = require('../../config.js').get;
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2023-01-06 19:15:29 +00:00
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const { Errors } = require('../../enig_error.js');
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2023-01-03 22:10:39 +00:00
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const { loadModulesForCategory, moduleCategories } = require('../../module_util');
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const WebHandlerModule = require('../../web_handler_module');
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2018-06-23 03:26:46 +00:00
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// deps
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2022-06-05 20:04:25 +00:00
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const http = require('http');
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const https = require('https');
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const _ = require('lodash');
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const fs = require('graceful-fs');
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const paths = require('path');
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const mimeTypes = require('mime-types');
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2018-12-27 09:46:16 +00:00
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const forEachSeries = require('async/forEachSeries');
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2022-12-29 07:56:10 +00:00
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const findSeries = require('async/findSeries');
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2023-02-02 06:02:33 +00:00
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const WebLog = require('../../web_log.js');
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2016-10-25 03:49:45 +00:00
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2022-06-05 20:04:25 +00:00
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const ModuleInfo = (exports.moduleInfo = {
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name: 'Web',
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desc: 'Web Server',
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author: 'NuSkooler',
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packageName: 'codes.l33t.enigma.web.server',
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});
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2016-10-25 03:49:45 +00:00
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2022-12-31 22:30:54 +00:00
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exports.WellKnownLocations = {
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2023-01-02 02:19:51 +00:00
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Rfc5785: '/.well-known', // https://www.rfc-editor.org/rfc/rfc5785
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Internal: '/_enig', // location of most enigma provided routes
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2022-12-31 22:30:54 +00:00
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};
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2016-10-25 03:49:45 +00:00
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class Route {
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2018-06-22 05:15:04 +00:00
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constructor(route) {
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Object.assign(this, route);
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2022-06-05 20:04:25 +00:00
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if (this.method) {
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2018-06-22 05:15:04 +00:00
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this.method = this.method.toUpperCase();
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}
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try {
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this.pathRegExp = new RegExp(this.path);
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2022-06-05 20:04:25 +00:00
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} catch (e) {
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2023-01-07 16:50:16 +00:00
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this.log.error({ route: route }, 'Invalid regular expression for route path');
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2018-06-22 05:15:04 +00:00
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}
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}
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isValid() {
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return (
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2022-06-05 20:04:25 +00:00
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(this.pathRegExp instanceof RegExp &&
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2023-01-06 20:49:13 +00:00
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-1 !==
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[
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'GET',
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'HEAD',
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'POST',
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'PUT',
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'DELETE',
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'CONNECT',
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'OPTIONS',
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'TRACE',
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].indexOf(this.method)) ||
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!_.isFunction(this.handler)
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2018-06-22 05:15:04 +00:00
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);
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}
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2016-10-25 03:49:45 +00:00
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2018-06-22 05:15:04 +00:00
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matchesRequest(req) {
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return req.method === this.method && this.pathRegExp.test(req.url);
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}
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2016-10-25 03:49:45 +00:00
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2022-06-05 20:04:25 +00:00
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getRouteKey() {
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return `${this.method}:${this.path}`;
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}
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2016-10-25 03:49:45 +00:00
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}
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exports.getModule = class WebServerModule extends ServerModule {
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2018-06-22 05:15:04 +00:00
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constructor() {
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super();
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2023-02-02 06:02:33 +00:00
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//this.log = Log.child({ server: 'Web' });
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this.log = WebLog.createWebLog();
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2023-01-07 16:50:16 +00:00
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2022-06-05 20:04:25 +00:00
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const config = Config();
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this.enableHttp = config.contentServers.web.http.enabled || false;
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this.enableHttps = config.contentServers.web.https.enabled || false;
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2018-06-22 05:15:04 +00:00
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this.routes = {};
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}
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2023-01-07 16:50:16 +00:00
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logger() {
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return this.log;
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}
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2022-12-31 22:30:54 +00:00
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getDomain() {
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const config = Config();
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2023-01-28 18:55:31 +00:00
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const overridePrefix = _.get(config, 'contentServers.web.overrideUrlPrefix');
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2022-12-31 22:30:54 +00:00
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if (_.isString(overridePrefix)) {
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const url = new URL(overridePrefix);
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return url.hostname;
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}
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return config.contentServers.web.domain;
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}
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2023-01-28 18:55:31 +00:00
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baseUrl() {
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2018-06-22 05:15:04 +00:00
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const config = Config();
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2023-01-28 18:55:31 +00:00
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const overridePrefix = _.get(config, 'contentServers.web.overrideUrlPrefix');
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if (overridePrefix) {
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return overridePrefix;
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2018-06-22 05:15:04 +00:00
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}
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let schema;
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let port;
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2022-06-05 20:04:25 +00:00
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if (config.contentServers.web.https.enabled) {
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schema = 'https://';
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port =
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2023-01-06 20:49:13 +00:00
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443 === config.contentServers.web.https.port
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? ''
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: `:${config.contentServers.web.https.port}`;
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2018-06-22 05:15:04 +00:00
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} else {
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2022-06-05 20:04:25 +00:00
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schema = 'http://';
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port =
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2023-01-06 20:49:13 +00:00
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80 === config.contentServers.web.http.port
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? ''
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: `:${config.contentServers.web.http.port}`;
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2018-06-22 05:15:04 +00:00
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}
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2023-01-28 18:55:31 +00:00
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return `${schema}${config.contentServers.web.domain}${port}`;
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}
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fullUrl(req) {
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const base = this.baseUrl();
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return new URL(`${base}${req.url}`);
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}
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buildUrl(pathAndQuery) {
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//
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// Create a URL such as
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// https://l33t.codes:44512/ + |pathAndQuery|
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//
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// Prefer HTTPS over HTTP. Be explicit about the port
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// only if non-standard. Allow users to override full prefix in config.
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//
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const base = this.baseUrl();
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return `${base}${pathAndQuery}`;
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2018-06-22 05:15:04 +00:00
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}
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isEnabled() {
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return this.enableHttp || this.enableHttps;
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}
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2018-12-27 09:19:26 +00:00
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createServer(cb) {
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2022-06-05 20:04:25 +00:00
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if (this.enableHttp) {
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2023-02-18 06:18:24 +00:00
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this.httpServer = http.createServer((req, resp) => {
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resp.on('error', err => {
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this.log.error({ error: err.message }, 'Response error');
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});
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this.routeRequest(req, resp);
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});
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2018-06-22 05:15:04 +00:00
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}
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const config = Config();
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2022-06-05 20:04:25 +00:00
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if (this.enableHttps) {
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2018-06-22 05:15:04 +00:00
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const options = {
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2022-06-05 20:04:25 +00:00
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cert: fs.readFileSync(config.contentServers.web.https.certPem),
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key: fs.readFileSync(config.contentServers.web.https.keyPem),
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2018-06-22 05:15:04 +00:00
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};
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2018-06-23 03:26:46 +00:00
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// additional options
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2022-06-05 20:04:25 +00:00
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Object.assign(options, config.contentServers.web.https.options || {});
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2018-06-22 05:15:04 +00:00
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2022-06-05 20:04:25 +00:00
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this.httpsServer = https.createServer(options, (req, resp) =>
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this.routeRequest(req, resp)
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);
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2018-06-22 05:15:04 +00:00
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}
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2018-12-27 09:19:26 +00:00
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return cb(null);
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2018-06-22 05:15:04 +00:00
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}
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2022-12-31 05:35:18 +00:00
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beforeListen(cb) {
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if (!this.isEnabled()) {
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return cb(null);
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}
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loadModulesForCategory(
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2022-12-31 22:30:54 +00:00
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moduleCategories.WebHandlers,
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2022-12-31 05:35:18 +00:00
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(module, nextModule) => {
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const moduleInst = new module.getModule();
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try {
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2023-01-03 22:10:39 +00:00
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const normalizedName = _.camelCase(module.moduleInfo.name);
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if (!WebHandlerModule.isEnabled(normalizedName)) {
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2023-01-07 16:50:16 +00:00
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this.log.info(
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2023-01-06 20:49:13 +00:00
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{ moduleName: normalizedName },
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2023-01-07 16:50:16 +00:00
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'Web handler module not enabled'
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2023-01-06 20:49:13 +00:00
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);
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2023-01-03 22:10:39 +00:00
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return nextModule(null);
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}
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2023-01-06 20:49:13 +00:00
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Log.info(
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{ moduleName: normalizedName },
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2023-01-07 16:50:16 +00:00
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'Initializing web handler module'
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2023-01-06 20:49:13 +00:00
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);
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2023-01-06 19:15:29 +00:00
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2023-01-07 16:50:16 +00:00
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moduleInst.init(this, err => {
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2022-12-31 05:35:18 +00:00
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return nextModule(err);
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});
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} catch (e) {
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2023-01-07 16:50:16 +00:00
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this.log.error(
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{ error: e.message },
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'Exception caught loading web handler'
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);
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2022-12-31 05:35:18 +00:00
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return nextModule(e);
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}
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},
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err => {
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return cb(err);
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}
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);
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}
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2018-12-27 09:46:16 +00:00
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listen(cb) {
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2018-06-22 05:15:04 +00:00
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const config = Config();
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2022-06-05 20:04:25 +00:00
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forEachSeries(
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['http', 'https'],
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(service, nextService) => {
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const name = `${service}Server`;
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if (this[name]) {
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const port = parseInt(config.contentServers.web[service].port);
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if (isNaN(port)) {
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2023-01-07 16:50:16 +00:00
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this.log.error(
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2022-06-05 20:04:25 +00:00
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{
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port: config.contentServers.web[service].port,
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server: ModuleInfo.name,
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},
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`Invalid port (${service})`
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);
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return nextService(
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Errors.Invalid(
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`Invalid port: ${config.contentServers.web[service].port}`
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)
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);
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}
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this[name].listen(
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port,
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config.contentServers.web[service].address,
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err => {
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return nextService(err);
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}
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);
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} else {
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return nextService(null);
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2018-06-22 05:15:04 +00:00
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}
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2022-06-05 20:04:25 +00:00
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},
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err => {
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return cb(err);
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2018-06-22 05:15:04 +00:00
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}
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2022-06-05 20:04:25 +00:00
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);
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2018-06-22 05:15:04 +00:00
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}
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addRoute(route) {
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route = new Route(route);
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2022-06-05 20:04:25 +00:00
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if (!route.isValid()) {
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2023-01-07 16:50:16 +00:00
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this.log.error(
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2022-06-05 20:04:25 +00:00
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{ route: route },
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'Cannot add route: missing or invalid required members'
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);
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2018-06-22 05:15:04 +00:00
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return false;
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}
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const routeKey = route.getRouteKey();
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2022-06-05 20:04:25 +00:00
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if (routeKey in this.routes) {
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2023-01-07 16:50:16 +00:00
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this.log.warn(
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2022-06-05 20:04:25 +00:00
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{ route: route, routeKey: routeKey },
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'Cannot add route: duplicate method/path combination exists'
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);
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2018-06-22 05:15:04 +00:00
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return false;
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}
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this.routes[routeKey] = route;
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return true;
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}
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routeRequest(req, resp) {
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2023-02-02 06:02:33 +00:00
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this.log.trace({ req }, 'Request');
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2023-01-07 16:50:16 +00:00
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2022-12-29 07:56:10 +00:00
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let route = _.find(this.routes, r => r.matchesRequest(req));
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2018-06-22 05:15:04 +00:00
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2022-12-29 07:56:10 +00:00
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if (route) {
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return route.handler(req, resp);
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} else {
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this.tryStaticRoute(req, resp, wasHandled => {
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if (!wasHandled) {
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this.tryRouteIndex(req, resp, wasHandled => {
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if (!wasHandled) {
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return this.fileNotFound(resp);
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}
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});
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}
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});
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2018-06-22 05:15:04 +00:00
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}
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}
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respondWithError(resp, code, bodyText, title) {
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2022-06-05 20:04:25 +00:00
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const customErrorPage = paths.join(
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Config().contentServers.web.staticRoot,
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`${code}.html`
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);
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2018-06-22 05:15:04 +00:00
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fs.readFile(customErrorPage, 'utf8', (err, data) => {
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2022-06-05 20:04:25 +00:00
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resp.writeHead(code, { 'Content-Type': 'text/html' });
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2018-06-22 05:15:04 +00:00
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2022-06-05 20:04:25 +00:00
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if (err) {
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2018-06-22 05:15:04 +00:00
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return resp.end(`<!doctype html>
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2018-06-23 03:26:46 +00:00
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>${title}</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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</head>
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<body>
|
|
|
|
<article>
|
|
|
|
<h2>${bodyText}</h2>
|
|
|
|
</article>
|
|
|
|
</body>
|
2022-06-05 20:04:25 +00:00
|
|
|
</html>`);
|
2018-06-22 05:15:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
return resp.end(data);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2023-02-06 04:17:57 +00:00
|
|
|
ok(resp, body = '', headers = { 'Content-Type': 'text/html' }) {
|
2023-02-06 04:10:51 +00:00
|
|
|
if (body && !headers['Content-Length']) {
|
|
|
|
headers['Content-Length'] = Buffer(body).length;
|
|
|
|
}
|
|
|
|
resp.writeHead(200, 'OK', body ? headers : null);
|
|
|
|
return resp.end(body);
|
|
|
|
}
|
|
|
|
|
2023-02-06 04:17:57 +00:00
|
|
|
created(resp, body = '', headers = { 'Content-Type': 'text/html' }) {
|
2023-01-29 23:52:01 +00:00
|
|
|
resp.writeHead(201, 'Created', body ? headers : null);
|
|
|
|
return resp.end(body);
|
|
|
|
}
|
|
|
|
|
2023-02-06 04:17:57 +00:00
|
|
|
accepted(resp, body = '', headers = { 'Content-Type': 'text/html' }) {
|
2023-01-26 05:22:45 +00:00
|
|
|
resp.writeHead(202, 'Accepted', body ? headers : null);
|
|
|
|
return resp.end(body);
|
|
|
|
}
|
|
|
|
|
2023-01-08 08:22:02 +00:00
|
|
|
badRequest(resp) {
|
|
|
|
return this.respondWithError(resp, 400, 'Bad request.', 'Bad Request');
|
|
|
|
}
|
|
|
|
|
2018-06-22 05:15:04 +00:00
|
|
|
accessDenied(resp) {
|
|
|
|
return this.respondWithError(resp, 401, 'Access denied.', 'Access Denied');
|
|
|
|
}
|
|
|
|
|
|
|
|
fileNotFound(resp) {
|
|
|
|
return this.respondWithError(resp, 404, 'File not found.', 'File Not Found');
|
|
|
|
}
|
|
|
|
|
2023-01-08 08:22:02 +00:00
|
|
|
resourceNotFound(resp) {
|
|
|
|
return this.respondWithError(
|
|
|
|
resp,
|
|
|
|
404,
|
|
|
|
'Resource not found.',
|
|
|
|
'Resource Not Found'
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
2023-01-21 05:15:59 +00:00
|
|
|
internalServerError(resp, err) {
|
|
|
|
if (err) {
|
|
|
|
this.log.error({ error: err.message }, 'Internal server error');
|
|
|
|
}
|
2023-01-08 08:22:02 +00:00
|
|
|
return this.respondWithError(
|
|
|
|
resp,
|
|
|
|
500,
|
|
|
|
'Internal server error.',
|
|
|
|
'Internal Server Error'
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
2023-01-21 08:19:19 +00:00
|
|
|
notImplemented(resp) {
|
|
|
|
return this.respondWithError(resp, 501, 'Not implemented.', 'Not Implemented');
|
|
|
|
}
|
|
|
|
|
2022-12-29 07:56:10 +00:00
|
|
|
tryRouteIndex(req, resp, cb) {
|
|
|
|
const tryFiles = Config().contentServers.web.tryFiles || [
|
|
|
|
'index.html',
|
|
|
|
'index.htm',
|
|
|
|
];
|
|
|
|
|
|
|
|
findSeries(
|
|
|
|
tryFiles,
|
|
|
|
(tryFile, nextTryFile) => {
|
|
|
|
const fileName = paths.join(
|
|
|
|
req.url.substr(req.url.lastIndexOf('/', 1)),
|
|
|
|
tryFile
|
|
|
|
);
|
|
|
|
|
2023-01-05 03:29:18 +00:00
|
|
|
const filePath = this.resolveStaticPath(fileName);
|
2022-12-29 07:56:10 +00:00
|
|
|
fs.stat(filePath, (err, stats) => {
|
|
|
|
if (err || !stats.isFile()) {
|
|
|
|
return nextTryFile(null, false);
|
|
|
|
}
|
2018-06-22 05:15:04 +00:00
|
|
|
|
2022-12-29 07:56:10 +00:00
|
|
|
const headers = {
|
|
|
|
'Content-Type':
|
2023-01-06 20:49:13 +00:00
|
|
|
mimeTypes.contentType(paths.basename(filePath)) ||
|
|
|
|
mimeTypes.contentType('.bin'),
|
2022-12-29 07:56:10 +00:00
|
|
|
'Content-Length': stats.size,
|
|
|
|
};
|
|
|
|
|
|
|
|
const readStream = fs.createReadStream(filePath);
|
|
|
|
resp.writeHead(200, headers);
|
|
|
|
readStream.pipe(resp);
|
|
|
|
|
|
|
|
return nextTryFile(null, true);
|
|
|
|
});
|
|
|
|
},
|
|
|
|
(_, wasHandled) => {
|
|
|
|
return cb(wasHandled);
|
|
|
|
}
|
|
|
|
);
|
2018-06-22 05:15:04 +00:00
|
|
|
}
|
|
|
|
|
2022-12-29 07:56:10 +00:00
|
|
|
tryStaticRoute(req, resp, cb) {
|
|
|
|
const fileName = req.url.substr(req.url.lastIndexOf('/', 1));
|
|
|
|
const filePath = this.resolveStaticPath(fileName);
|
2018-06-22 05:15:04 +00:00
|
|
|
|
2020-11-27 19:50:57 +00:00
|
|
|
if (!filePath) {
|
2022-12-29 07:56:10 +00:00
|
|
|
return cb(false);
|
2020-11-27 19:50:57 +00:00
|
|
|
}
|
|
|
|
|
2018-06-22 05:15:04 +00:00
|
|
|
fs.stat(filePath, (err, stats) => {
|
2022-06-05 20:04:25 +00:00
|
|
|
if (err || !stats.isFile()) {
|
2022-12-29 07:56:10 +00:00
|
|
|
return cb(false);
|
2018-06-22 05:15:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
const headers = {
|
2022-06-05 20:04:25 +00:00
|
|
|
'Content-Type':
|
2023-01-06 20:49:13 +00:00
|
|
|
mimeTypes.contentType(paths.basename(filePath)) ||
|
|
|
|
mimeTypes.contentType('.bin'),
|
2022-06-05 20:04:25 +00:00
|
|
|
'Content-Length': stats.size,
|
2018-06-22 05:15:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
const readStream = fs.createReadStream(filePath);
|
|
|
|
resp.writeHead(200, headers);
|
2022-12-29 07:56:10 +00:00
|
|
|
readStream.pipe(resp);
|
|
|
|
|
|
|
|
return cb(true);
|
2018-06-22 05:15:04 +00:00
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2020-11-27 19:50:57 +00:00
|
|
|
resolveStaticPath(requestPath) {
|
|
|
|
const staticRoot = _.get(Config(), 'contentServers.web.staticRoot');
|
|
|
|
const path = paths.resolve(staticRoot, `.${requestPath}`);
|
|
|
|
if (path.startsWith(staticRoot)) {
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2023-01-02 02:19:51 +00:00
|
|
|
resolveTemplatePath(path) {
|
|
|
|
if (paths.isAbsolute(path)) {
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
|
|
|
const staticRoot = _.get(Config(), 'contentServers.web.staticRoot');
|
|
|
|
const resolved = paths.resolve(staticRoot, path);
|
|
|
|
if (resolved.startsWith(staticRoot)) {
|
|
|
|
return resolved;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-06-22 05:15:04 +00:00
|
|
|
routeTemplateFilePage(templatePath, preprocessCallback, resp) {
|
|
|
|
const self = this;
|
|
|
|
|
|
|
|
fs.readFile(templatePath, 'utf8', (err, templateData) => {
|
2022-06-05 20:04:25 +00:00
|
|
|
if (err) {
|
2018-06-22 05:15:04 +00:00
|
|
|
return self.fileNotFound(resp);
|
|
|
|
}
|
|
|
|
|
|
|
|
preprocessCallback(templateData, (err, finalPage, contentType) => {
|
2022-06-05 20:04:25 +00:00
|
|
|
if (err || !finalPage) {
|
|
|
|
return self.respondWithError(
|
|
|
|
resp,
|
|
|
|
500,
|
|
|
|
'Internal Server Error.',
|
|
|
|
'Internal Server Error'
|
|
|
|
);
|
2018-06-22 05:15:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
const headers = {
|
2022-06-05 20:04:25 +00:00
|
|
|
'Content-Type': contentType || mimeTypes.contentType('.html'),
|
|
|
|
'Content-Length': finalPage.length,
|
2018-06-22 05:15:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
resp.writeHead(200, headers);
|
|
|
|
return resp.end(finalPage);
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
2017-02-04 16:20:36 +00:00
|
|
|
};
|