PagesRouter.js 79 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = exports.PagesRouter = void 0;
  6. var _PromiseRouter = _interopRequireDefault(require("../PromiseRouter"));
  7. var _Config = _interopRequireDefault(require("../Config"));
  8. var _express = _interopRequireDefault(require("express"));
  9. var _path = _interopRequireDefault(require("path"));
  10. var _fs = require("fs");
  11. var _node = require("parse/node");
  12. var _Utils = _interopRequireDefault(require("../Utils"));
  13. var _mustache = _interopRequireDefault(require("mustache"));
  14. var _Page = _interopRequireDefault(require("../Page"));
  15. function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
  16. // All pages with custom page key for reference and file name
  17. const pages = Object.freeze({
  18. passwordReset: new _Page.default({
  19. id: 'passwordReset',
  20. defaultFile: 'password_reset.html'
  21. }),
  22. passwordResetSuccess: new _Page.default({
  23. id: 'passwordResetSuccess',
  24. defaultFile: 'password_reset_success.html'
  25. }),
  26. passwordResetLinkInvalid: new _Page.default({
  27. id: 'passwordResetLinkInvalid',
  28. defaultFile: 'password_reset_link_invalid.html'
  29. }),
  30. emailVerificationSuccess: new _Page.default({
  31. id: 'emailVerificationSuccess',
  32. defaultFile: 'email_verification_success.html'
  33. }),
  34. emailVerificationSendFail: new _Page.default({
  35. id: 'emailVerificationSendFail',
  36. defaultFile: 'email_verification_send_fail.html'
  37. }),
  38. emailVerificationSendSuccess: new _Page.default({
  39. id: 'emailVerificationSendSuccess',
  40. defaultFile: 'email_verification_send_success.html'
  41. }),
  42. emailVerificationLinkInvalid: new _Page.default({
  43. id: 'emailVerificationLinkInvalid',
  44. defaultFile: 'email_verification_link_invalid.html'
  45. }),
  46. emailVerificationLinkExpired: new _Page.default({
  47. id: 'emailVerificationLinkExpired',
  48. defaultFile: 'email_verification_link_expired.html'
  49. })
  50. });
  51. // All page parameters for reference to be used as template placeholders or query params
  52. const pageParams = Object.freeze({
  53. appName: 'appName',
  54. appId: 'appId',
  55. token: 'token',
  56. username: 'username',
  57. error: 'error',
  58. locale: 'locale',
  59. publicServerUrl: 'publicServerUrl'
  60. });
  61. // The header prefix to add page params as response headers
  62. const pageParamHeaderPrefix = 'x-parse-page-param-';
  63. // The errors being thrown
  64. const errors = Object.freeze({
  65. jsonFailedFileLoading: 'failed to load JSON file',
  66. fileOutsideAllowedScope: 'not allowed to read file outside of pages directory'
  67. });
  68. class PagesRouter extends _PromiseRouter.default {
  69. /**
  70. * Constructs a PagesRouter.
  71. * @param {Object} pages The pages options from the Parse Server configuration.
  72. */
  73. constructor(pages = {}) {
  74. super();
  75. // Set instance properties
  76. this.pagesConfig = pages;
  77. this.pagesEndpoint = pages.pagesEndpoint ? pages.pagesEndpoint : 'apps';
  78. this.pagesPath = pages.pagesPath ? _path.default.resolve('./', pages.pagesPath) : _path.default.resolve(__dirname, '../../public');
  79. this.loadJsonResource();
  80. this.mountPagesRoutes();
  81. this.mountCustomRoutes();
  82. this.mountStaticRoute();
  83. }
  84. verifyEmail(req) {
  85. const config = req.config;
  86. const {
  87. username,
  88. token: rawToken
  89. } = req.query;
  90. const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;
  91. if (!config) {
  92. this.invalidRequest();
  93. }
  94. if (!token || !username) {
  95. return this.goToPage(req, pages.emailVerificationLinkInvalid);
  96. }
  97. const userController = config.userController;
  98. return userController.verifyEmail(username, token).then(() => {
  99. const params = {
  100. [pageParams.username]: username
  101. };
  102. return this.goToPage(req, pages.emailVerificationSuccess, params);
  103. }, () => {
  104. const params = {
  105. [pageParams.username]: username
  106. };
  107. return this.goToPage(req, pages.emailVerificationLinkExpired, params);
  108. });
  109. }
  110. resendVerificationEmail(req) {
  111. const config = req.config;
  112. const username = req.body.username;
  113. if (!config) {
  114. this.invalidRequest();
  115. }
  116. if (!username) {
  117. return this.goToPage(req, pages.emailVerificationLinkInvalid);
  118. }
  119. const userController = config.userController;
  120. return userController.resendVerificationEmail(username, req).then(() => {
  121. return this.goToPage(req, pages.emailVerificationSendSuccess);
  122. }, () => {
  123. return this.goToPage(req, pages.emailVerificationSendFail);
  124. });
  125. }
  126. passwordReset(req) {
  127. const config = req.config;
  128. const params = {
  129. [pageParams.appId]: req.params.appId,
  130. [pageParams.appName]: config.appName,
  131. [pageParams.token]: req.query.token,
  132. [pageParams.username]: req.query.username,
  133. [pageParams.publicServerUrl]: config.publicServerURL
  134. };
  135. return this.goToPage(req, pages.passwordReset, params);
  136. }
  137. requestResetPassword(req) {
  138. const config = req.config;
  139. if (!config) {
  140. this.invalidRequest();
  141. }
  142. const {
  143. username,
  144. token: rawToken
  145. } = req.query;
  146. const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;
  147. if (!username || !token) {
  148. return this.goToPage(req, pages.passwordResetLinkInvalid);
  149. }
  150. return config.userController.checkResetTokenValidity(username, token).then(() => {
  151. const params = {
  152. [pageParams.token]: token,
  153. [pageParams.username]: username,
  154. [pageParams.appId]: config.applicationId,
  155. [pageParams.appName]: config.appName
  156. };
  157. return this.goToPage(req, pages.passwordReset, params);
  158. }, () => {
  159. const params = {
  160. [pageParams.username]: username
  161. };
  162. return this.goToPage(req, pages.passwordResetLinkInvalid, params);
  163. });
  164. }
  165. resetPassword(req) {
  166. const config = req.config;
  167. if (!config) {
  168. this.invalidRequest();
  169. }
  170. const {
  171. username,
  172. new_password,
  173. token: rawToken
  174. } = req.body;
  175. const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;
  176. if ((!username || !token || !new_password) && req.xhr === false) {
  177. return this.goToPage(req, pages.passwordResetLinkInvalid);
  178. }
  179. if (!username) {
  180. throw new _node.Parse.Error(_node.Parse.Error.USERNAME_MISSING, 'Missing username');
  181. }
  182. if (!token) {
  183. throw new _node.Parse.Error(_node.Parse.Error.OTHER_CAUSE, 'Missing token');
  184. }
  185. if (!new_password) {
  186. throw new _node.Parse.Error(_node.Parse.Error.PASSWORD_MISSING, 'Missing password');
  187. }
  188. return config.userController.updatePassword(username, token, new_password).then(() => {
  189. return Promise.resolve({
  190. success: true
  191. });
  192. }, err => {
  193. return Promise.resolve({
  194. success: false,
  195. err
  196. });
  197. }).then(result => {
  198. if (req.xhr) {
  199. if (result.success) {
  200. return Promise.resolve({
  201. status: 200,
  202. response: 'Password successfully reset'
  203. });
  204. }
  205. if (result.err) {
  206. throw new _node.Parse.Error(_node.Parse.Error.OTHER_CAUSE, `${result.err}`);
  207. }
  208. }
  209. const query = result.success ? {
  210. [pageParams.username]: username
  211. } : {
  212. [pageParams.username]: username,
  213. [pageParams.token]: token,
  214. [pageParams.appId]: config.applicationId,
  215. [pageParams.error]: result.err,
  216. [pageParams.appName]: config.appName
  217. };
  218. const page = result.success ? pages.passwordResetSuccess : pages.passwordReset;
  219. return this.goToPage(req, page, query, false);
  220. });
  221. }
  222. /**
  223. * Returns page content if the page is a local file or returns a
  224. * redirect to a custom page.
  225. * @param {Object} req The express request.
  226. * @param {Page} page The page to go to.
  227. * @param {Object} [params={}] The query parameters to attach to the URL in case of
  228. * HTTP redirect responses for POST requests, or the placeholders to fill into
  229. * the response content in case of HTTP content responses for GET requests.
  230. * @param {Boolean} [responseType] Is true if a redirect response should be forced,
  231. * false if a content response should be forced, undefined if the response type
  232. * should depend on the request type by default:
  233. * - GET request -> content response
  234. * - POST request -> redirect response (PRG pattern)
  235. * @returns {Promise<Object>} The PromiseRouter response.
  236. */
  237. goToPage(req, page, params = {}, responseType) {
  238. const config = req.config;
  239. // Determine redirect either by force, response setting or request method
  240. const redirect = config.pages.forceRedirect ? true : responseType !== undefined ? responseType : req.method == 'POST';
  241. // Include default parameters
  242. const defaultParams = this.getDefaultParams(config);
  243. if (Object.values(defaultParams).includes(undefined)) {
  244. return this.notFound();
  245. }
  246. params = Object.assign(params, defaultParams);
  247. // Add locale to params to ensure it is passed on with every request;
  248. // that means, once a locale is set, it is passed on to any follow-up page,
  249. // e.g. request_password_reset -> password_reset -> password_reset_success
  250. const locale = this.getLocale(req);
  251. params[pageParams.locale] = locale;
  252. // Compose paths and URLs
  253. const defaultFile = page.defaultFile;
  254. const defaultPath = this.defaultPagePath(defaultFile);
  255. const defaultUrl = this.composePageUrl(defaultFile, config.publicServerURL);
  256. // If custom URL is set redirect to it without localization
  257. const customUrl = config.pages.customUrls[page.id];
  258. if (customUrl && !_Utils.default.isPath(customUrl)) {
  259. return this.redirectResponse(customUrl, params);
  260. }
  261. // Get JSON placeholders
  262. let placeholders = {};
  263. if (config.pages.enableLocalization && config.pages.localizationJsonPath) {
  264. placeholders = this.getJsonPlaceholders(locale, params);
  265. }
  266. // Send response
  267. if (config.pages.enableLocalization && locale) {
  268. return _Utils.default.getLocalizedPath(defaultPath, locale).then(({
  269. path,
  270. subdir
  271. }) => redirect ? this.redirectResponse(this.composePageUrl(defaultFile, config.publicServerURL, subdir), params) : this.pageResponse(path, params, placeholders));
  272. } else {
  273. return redirect ? this.redirectResponse(defaultUrl, params) : this.pageResponse(defaultPath, params, placeholders);
  274. }
  275. }
  276. /**
  277. * Serves a request to a static resource and localizes the resource if it
  278. * is a HTML file.
  279. * @param {Object} req The request object.
  280. * @returns {Promise<Object>} The response.
  281. */
  282. staticRoute(req) {
  283. // Get requested path
  284. const relativePath = req.params[0];
  285. // Resolve requested path to absolute path
  286. const absolutePath = _path.default.resolve(this.pagesPath, relativePath);
  287. // If the requested file is not a HTML file send its raw content
  288. if (!absolutePath || !absolutePath.endsWith('.html')) {
  289. return this.fileResponse(absolutePath);
  290. }
  291. // Get parameters
  292. const params = this.getDefaultParams(req.config);
  293. const locale = this.getLocale(req);
  294. if (locale) {
  295. params.locale = locale;
  296. }
  297. // Get JSON placeholders
  298. const placeholders = this.getJsonPlaceholders(locale, params);
  299. return this.pageResponse(absolutePath, params, placeholders);
  300. }
  301. /**
  302. * Returns a translation from the JSON resource for a given locale. The JSON
  303. * resource is parsed according to i18next syntax.
  304. *
  305. * Example JSON content:
  306. * ```js
  307. * {
  308. * "en": { // resource for language `en` (English)
  309. * "translation": {
  310. * "greeting": "Hello!"
  311. * }
  312. * },
  313. * "de": { // resource for language `de` (German)
  314. * "translation": {
  315. * "greeting": "Hallo!"
  316. * }
  317. * }
  318. * "de-CH": { // resource for locale `de-CH` (Swiss German)
  319. * "translation": {
  320. * "greeting": "Grüezi!"
  321. * }
  322. * }
  323. * }
  324. * ```
  325. * @param {String} locale The locale to translate to.
  326. * @returns {Object} The translation or an empty object if no matching
  327. * translation was found.
  328. */
  329. getJsonTranslation(locale) {
  330. // If there is no JSON resource
  331. if (this.jsonParameters === undefined) {
  332. return {};
  333. }
  334. // If locale is not set use the fallback locale
  335. locale = locale || this.pagesConfig.localizationFallbackLocale;
  336. // Get matching translation by locale, language or fallback locale
  337. const language = locale.split('-')[0];
  338. const resource = this.jsonParameters[locale] || this.jsonParameters[language] || this.jsonParameters[this.pagesConfig.localizationFallbackLocale] || {};
  339. const translation = resource.translation || {};
  340. return translation;
  341. }
  342. /**
  343. * Returns a translation from the JSON resource for a given locale with
  344. * placeholders filled in by given parameters.
  345. * @param {String} locale The locale to translate to.
  346. * @param {Object} params The parameters to fill into any placeholders
  347. * within the translations.
  348. * @returns {Object} The translation or an empty object if no matching
  349. * translation was found.
  350. */
  351. getJsonPlaceholders(locale, params = {}) {
  352. // If localization is disabled or there is no JSON resource
  353. if (!this.pagesConfig.enableLocalization || !this.pagesConfig.localizationJsonPath) {
  354. return {};
  355. }
  356. // Get JSON placeholders
  357. let placeholders = this.getJsonTranslation(locale);
  358. // Fill in any placeholders in the translation; this allows a translation
  359. // to contain default placeholders like {{appName}} which are filled here
  360. placeholders = JSON.stringify(placeholders);
  361. placeholders = _mustache.default.render(placeholders, params);
  362. placeholders = JSON.parse(placeholders);
  363. return placeholders;
  364. }
  365. /**
  366. * Creates a response with file content.
  367. * @param {String} path The path of the file to return.
  368. * @param {Object} [params={}] The parameters to be included in the response
  369. * header. These will also be used to fill placeholders.
  370. * @param {Object} [placeholders={}] The placeholders to fill in the content.
  371. * These will not be included in the response header.
  372. * @returns {Object} The Promise Router response.
  373. */
  374. async pageResponse(path, params = {}, placeholders = {}) {
  375. // Get file content
  376. let data;
  377. try {
  378. data = await this.readFile(path);
  379. } catch (e) {
  380. return this.notFound();
  381. }
  382. // Get config placeholders; can be an object, a function or an async function
  383. let configPlaceholders = typeof this.pagesConfig.placeholders === 'function' ? this.pagesConfig.placeholders(params) : Object.prototype.toString.call(this.pagesConfig.placeholders) === '[object Object]' ? this.pagesConfig.placeholders : {};
  384. if (configPlaceholders instanceof Promise) {
  385. configPlaceholders = await configPlaceholders;
  386. }
  387. // Fill placeholders
  388. const allPlaceholders = Object.assign({}, configPlaceholders, placeholders);
  389. const paramsAndPlaceholders = Object.assign({}, params, allPlaceholders);
  390. data = _mustache.default.render(data, paramsAndPlaceholders);
  391. // Add placeholders in header to allow parsing for programmatic use
  392. // of response, instead of having to parse the HTML content.
  393. const headers = Object.entries(params).reduce((m, p) => {
  394. if (p[1] !== undefined) {
  395. m[`${pageParamHeaderPrefix}${p[0].toLowerCase()}`] = p[1];
  396. }
  397. return m;
  398. }, {});
  399. return {
  400. text: data,
  401. headers: headers
  402. };
  403. }
  404. /**
  405. * Creates a response with file content.
  406. * @param {String} path The path of the file to return.
  407. * @returns {Object} The PromiseRouter response.
  408. */
  409. async fileResponse(path) {
  410. // Get file content
  411. let data;
  412. try {
  413. data = await this.readFile(path);
  414. } catch (e) {
  415. return this.notFound();
  416. }
  417. return {
  418. text: data
  419. };
  420. }
  421. /**
  422. * Reads and returns the content of a file at a given path. File reading to
  423. * serve content on the static route is only allowed from the pages
  424. * directory on downwards.
  425. * -----------------------------------------------------------------------
  426. * **WARNING:** All file reads in the PagesRouter must be executed by this
  427. * wrapper because it also detects and prevents common exploits.
  428. * -----------------------------------------------------------------------
  429. * @param {String} filePath The path to the file to read.
  430. * @returns {Promise<String>} The file content.
  431. */
  432. async readFile(filePath) {
  433. // Normalize path to prevent it from containing any directory changing
  434. // UNIX patterns which could expose the whole file system, e.g.
  435. // `http://example.com/parse/apps/../file.txt` requests a file outside
  436. // of the pages directory scope.
  437. const normalizedPath = _path.default.normalize(filePath);
  438. // Abort if the path is outside of the path directory scope
  439. if (!normalizedPath.startsWith(this.pagesPath)) {
  440. throw errors.fileOutsideAllowedScope;
  441. }
  442. return await _fs.promises.readFile(normalizedPath, 'utf-8');
  443. }
  444. /**
  445. * Loads a language resource JSON file that is used for translations.
  446. */
  447. loadJsonResource() {
  448. if (this.pagesConfig.localizationJsonPath === undefined) {
  449. return;
  450. }
  451. try {
  452. const json = require(_path.default.resolve('./', this.pagesConfig.localizationJsonPath));
  453. this.jsonParameters = json;
  454. } catch (e) {
  455. throw errors.jsonFailedFileLoading;
  456. }
  457. }
  458. /**
  459. * Extracts and returns the page default parameters from the Parse Server
  460. * configuration. These parameters are made accessible in every page served
  461. * by this router.
  462. * @param {Object} config The Parse Server configuration.
  463. * @returns {Object} The default parameters.
  464. */
  465. getDefaultParams(config) {
  466. return config ? {
  467. [pageParams.appId]: config.appId,
  468. [pageParams.appName]: config.appName,
  469. [pageParams.publicServerUrl]: config.publicServerURL
  470. } : {};
  471. }
  472. /**
  473. * Extracts and returns the locale from an express request.
  474. * @param {Object} req The express request.
  475. * @returns {String|undefined} The locale, or undefined if no locale was set.
  476. */
  477. getLocale(req) {
  478. const locale = (req.query || {})[pageParams.locale] || (req.body || {})[pageParams.locale] || (req.params || {})[pageParams.locale] || (req.headers || {})[pageParamHeaderPrefix + pageParams.locale];
  479. return locale;
  480. }
  481. /**
  482. * Creates a response with http redirect.
  483. * @param {Object} req The express request.
  484. * @param {String} path The path of the file to return.
  485. * @param {Object} params The query parameters to include.
  486. * @returns {Object} The Promise Router response.
  487. */
  488. async redirectResponse(url, params) {
  489. // Remove any parameters with undefined value
  490. params = Object.entries(params).reduce((m, p) => {
  491. if (p[1] !== undefined) {
  492. m[p[0]] = p[1];
  493. }
  494. return m;
  495. }, {});
  496. // Compose URL with parameters in query
  497. const location = new URL(url);
  498. Object.entries(params).forEach(p => location.searchParams.set(p[0], p[1]));
  499. const locationString = location.toString();
  500. // Add parameters to header to allow parsing for programmatic use
  501. // of response, instead of having to parse the HTML content.
  502. const headers = Object.entries(params).reduce((m, p) => {
  503. if (p[1] !== undefined) {
  504. m[`${pageParamHeaderPrefix}${p[0].toLowerCase()}`] = p[1];
  505. }
  506. return m;
  507. }, {});
  508. return {
  509. status: 303,
  510. location: locationString,
  511. headers: headers
  512. };
  513. }
  514. defaultPagePath(file) {
  515. return _path.default.join(this.pagesPath, file);
  516. }
  517. composePageUrl(file, publicServerUrl, locale) {
  518. let url = publicServerUrl;
  519. url += url.endsWith('/') ? '' : '/';
  520. url += this.pagesEndpoint + '/';
  521. url += locale === undefined ? '' : locale + '/';
  522. url += file;
  523. return url;
  524. }
  525. notFound() {
  526. return {
  527. text: 'Not found.',
  528. status: 404
  529. };
  530. }
  531. invalidRequest() {
  532. const error = new Error();
  533. error.status = 403;
  534. error.message = 'unauthorized';
  535. throw error;
  536. }
  537. /**
  538. * Sets the Parse Server configuration in the request object to make it
  539. * easily accessible throughtout request processing.
  540. * @param {Object} req The request.
  541. * @param {Boolean} failGracefully Is true if failing to set the config should
  542. * not result in an invalid request response. Default is `false`.
  543. */
  544. setConfig(req, failGracefully = false) {
  545. req.config = _Config.default.get(req.params.appId || req.query.appId);
  546. if (!req.config && !failGracefully) {
  547. this.invalidRequest();
  548. }
  549. return Promise.resolve();
  550. }
  551. mountPagesRoutes() {
  552. this.route('GET', `/${this.pagesEndpoint}/:appId/verify_email`, req => {
  553. this.setConfig(req);
  554. }, req => {
  555. return this.verifyEmail(req);
  556. });
  557. this.route('POST', `/${this.pagesEndpoint}/:appId/resend_verification_email`, req => {
  558. this.setConfig(req);
  559. }, req => {
  560. return this.resendVerificationEmail(req);
  561. });
  562. this.route('GET', `/${this.pagesEndpoint}/choose_password`, req => {
  563. this.setConfig(req);
  564. }, req => {
  565. return this.passwordReset(req);
  566. });
  567. this.route('POST', `/${this.pagesEndpoint}/:appId/request_password_reset`, req => {
  568. this.setConfig(req);
  569. }, req => {
  570. return this.resetPassword(req);
  571. });
  572. this.route('GET', `/${this.pagesEndpoint}/:appId/request_password_reset`, req => {
  573. this.setConfig(req);
  574. }, req => {
  575. return this.requestResetPassword(req);
  576. });
  577. }
  578. mountCustomRoutes() {
  579. for (const route of this.pagesConfig.customRoutes || []) {
  580. this.route(route.method, `/${this.pagesEndpoint}/:appId/${route.path}`, req => {
  581. this.setConfig(req);
  582. }, async req => {
  583. const {
  584. file,
  585. query = {}
  586. } = (await route.handler(req)) || {};
  587. // If route handler did not return a page send 404 response
  588. if (!file) {
  589. return this.notFound();
  590. }
  591. // Send page response
  592. const page = new _Page.default({
  593. id: file,
  594. defaultFile: file
  595. });
  596. return this.goToPage(req, page, query, false);
  597. });
  598. }
  599. }
  600. mountStaticRoute() {
  601. this.route('GET', `/${this.pagesEndpoint}/(*)?`, req => {
  602. this.setConfig(req, true);
  603. }, req => {
  604. return this.staticRoute(req);
  605. });
  606. }
  607. expressRouter() {
  608. const router = _express.default.Router();
  609. router.use('/', super.expressRouter());
  610. return router;
  611. }
  612. }
  613. exports.PagesRouter = PagesRouter;
  614. var _default = exports.default = PagesRouter;
  615. module.exports = {
  616. PagesRouter,
  617. pageParamHeaderPrefix,
  618. pageParams,
  619. pages
  620. };
  621. //# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_PromiseRouter","_interopRequireDefault","require","_Config","_express","_path","_fs","_node","_Utils","_mustache","_Page","e","__esModule","default","pages","Object","freeze","passwordReset","Page","id","defaultFile","passwordResetSuccess","passwordResetLinkInvalid","emailVerificationSuccess","emailVerificationSendFail","emailVerificationSendSuccess","emailVerificationLinkInvalid","emailVerificationLinkExpired","pageParams","appName","appId","token","username","error","locale","publicServerUrl","pageParamHeaderPrefix","errors","jsonFailedFileLoading","fileOutsideAllowedScope","PagesRouter","PromiseRouter","constructor","pagesConfig","pagesEndpoint","pagesPath","path","resolve","__dirname","loadJsonResource","mountPagesRoutes","mountCustomRoutes","mountStaticRoute","verifyEmail","req","config","rawToken","query","toString","invalidRequest","goToPage","userController","then","params","resendVerificationEmail","body","publicServerURL","requestResetPassword","checkResetTokenValidity","applicationId","resetPassword","new_password","xhr","Parse","Error","USERNAME_MISSING","OTHER_CAUSE","PASSWORD_MISSING","updatePassword","Promise","success","err","result","status","response","page","responseType","redirect","forceRedirect","undefined","method","defaultParams","getDefaultParams","values","includes","notFound","assign","getLocale","defaultPath","defaultPagePath","defaultUrl","composePageUrl","customUrl","customUrls","Utils","isPath","redirectResponse","placeholders","enableLocalization","localizationJsonPath","getJsonPlaceholders","getLocalizedPath","subdir","pageResponse","staticRoute","relativePath","absolutePath","endsWith","fileResponse","getJsonTranslation","jsonParameters","localizationFallbackLocale","language","split","resource","translation","JSON","stringify","mustache","render","parse","data","readFile","configPlaceholders","prototype","call","allPlaceholders","paramsAndPlaceholders","headers","entries","reduce","m","p","toLowerCase","text","filePath","normalizedPath","normalize","startsWith","fs","json","url","location","URL","forEach","searchParams","set","locationString","file","join","message","setConfig","failGracefully","Config","get","route","customRoutes","handler","expressRouter","router","express","Router","use","exports","_default","module"],"sources":["../../src/Routers/PagesRouter.js"],"sourcesContent":["import PromiseRouter from '../PromiseRouter';\nimport Config from '../Config';\nimport express from 'express';\nimport path from 'path';\nimport { promises as fs } from 'fs';\nimport { Parse } from 'parse/node';\nimport Utils from '../Utils';\nimport mustache from 'mustache';\nimport Page from '../Page';\n\n// All pages with custom page key for reference and file name\nconst pages = Object.freeze({\n  passwordReset: new Page({ id: 'passwordReset', defaultFile: 'password_reset.html' }),\n  passwordResetSuccess: new Page({\n    id: 'passwordResetSuccess',\n    defaultFile: 'password_reset_success.html',\n  }),\n  passwordResetLinkInvalid: new Page({\n    id: 'passwordResetLinkInvalid',\n    defaultFile: 'password_reset_link_invalid.html',\n  }),\n  emailVerificationSuccess: new Page({\n    id: 'emailVerificationSuccess',\n    defaultFile: 'email_verification_success.html',\n  }),\n  emailVerificationSendFail: new Page({\n    id: 'emailVerificationSendFail',\n    defaultFile: 'email_verification_send_fail.html',\n  }),\n  emailVerificationSendSuccess: new Page({\n    id: 'emailVerificationSendSuccess',\n    defaultFile: 'email_verification_send_success.html',\n  }),\n  emailVerificationLinkInvalid: new Page({\n    id: 'emailVerificationLinkInvalid',\n    defaultFile: 'email_verification_link_invalid.html',\n  }),\n  emailVerificationLinkExpired: new Page({\n    id: 'emailVerificationLinkExpired',\n    defaultFile: 'email_verification_link_expired.html',\n  }),\n});\n\n// All page parameters for reference to be used as template placeholders or query params\nconst pageParams = Object.freeze({\n  appName: 'appName',\n  appId: 'appId',\n  token: 'token',\n  username: 'username',\n  error: 'error',\n  locale: 'locale',\n  publicServerUrl: 'publicServerUrl',\n});\n\n// The header prefix to add page params as response headers\nconst pageParamHeaderPrefix = 'x-parse-page-param-';\n\n// The errors being thrown\nconst errors = Object.freeze({\n  jsonFailedFileLoading: 'failed to load JSON file',\n  fileOutsideAllowedScope: 'not allowed to read file outside of pages directory',\n});\n\nexport class PagesRouter extends PromiseRouter {\n  /**\n   * Constructs a PagesRouter.\n   * @param {Object} pages The pages options from the Parse Server configuration.\n   */\n  constructor(pages = {}) {\n    super();\n\n    // Set instance properties\n    this.pagesConfig = pages;\n    this.pagesEndpoint = pages.pagesEndpoint ? pages.pagesEndpoint : 'apps';\n    this.pagesPath = pages.pagesPath\n      ? path.resolve('./', pages.pagesPath)\n      : path.resolve(__dirname, '../../public');\n    this.loadJsonResource();\n    this.mountPagesRoutes();\n    this.mountCustomRoutes();\n    this.mountStaticRoute();\n  }\n\n  verifyEmail(req) {\n    const config = req.config;\n    const { username, token: rawToken } = req.query;\n    const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;\n\n    if (!config) {\n      this.invalidRequest();\n    }\n\n    if (!token || !username) {\n      return this.goToPage(req, pages.emailVerificationLinkInvalid);\n    }\n\n    const userController = config.userController;\n    return userController.verifyEmail(username, token).then(\n      () => {\n        const params = {\n          [pageParams.username]: username,\n        };\n        return this.goToPage(req, pages.emailVerificationSuccess, params);\n      },\n      () => {\n        const params = {\n          [pageParams.username]: username,\n        };\n        return this.goToPage(req, pages.emailVerificationLinkExpired, params);\n      }\n    );\n  }\n\n  resendVerificationEmail(req) {\n    const config = req.config;\n    const username = req.body.username;\n\n    if (!config) {\n      this.invalidRequest();\n    }\n\n    if (!username) {\n      return this.goToPage(req, pages.emailVerificationLinkInvalid);\n    }\n\n    const userController = config.userController;\n\n    return userController.resendVerificationEmail(username, req).then(\n      () => {\n        return this.goToPage(req, pages.emailVerificationSendSuccess);\n      },\n      () => {\n        return this.goToPage(req, pages.emailVerificationSendFail);\n      }\n    );\n  }\n\n  passwordReset(req) {\n    const config = req.config;\n    const params = {\n      [pageParams.appId]: req.params.appId,\n      [pageParams.appName]: config.appName,\n      [pageParams.token]: req.query.token,\n      [pageParams.username]: req.query.username,\n      [pageParams.publicServerUrl]: config.publicServerURL,\n    };\n    return this.goToPage(req, pages.passwordReset, params);\n  }\n\n  requestResetPassword(req) {\n    const config = req.config;\n\n    if (!config) {\n      this.invalidRequest();\n    }\n\n    const { username, token: rawToken } = req.query;\n    const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;\n\n    if (!username || !token) {\n      return this.goToPage(req, pages.passwordResetLinkInvalid);\n    }\n\n    return config.userController.checkResetTokenValidity(username, token).then(\n      () => {\n        const params = {\n          [pageParams.token]: token,\n          [pageParams.username]: username,\n          [pageParams.appId]: config.applicationId,\n          [pageParams.appName]: config.appName,\n        };\n        return this.goToPage(req, pages.passwordReset, params);\n      },\n      () => {\n        const params = {\n          [pageParams.username]: username,\n        };\n        return this.goToPage(req, pages.passwordResetLinkInvalid, params);\n      }\n    );\n  }\n\n  resetPassword(req) {\n    const config = req.config;\n\n    if (!config) {\n      this.invalidRequest();\n    }\n\n    const { username, new_password, token: rawToken } = req.body;\n    const token = rawToken && typeof rawToken !== 'string' ? rawToken.toString() : rawToken;\n\n    if ((!username || !token || !new_password) && req.xhr === false) {\n      return this.goToPage(req, pages.passwordResetLinkInvalid);\n    }\n\n    if (!username) {\n      throw new Parse.Error(Parse.Error.USERNAME_MISSING, 'Missing username');\n    }\n\n    if (!token) {\n      throw new Parse.Error(Parse.Error.OTHER_CAUSE, 'Missing token');\n    }\n\n    if (!new_password) {\n      throw new Parse.Error(Parse.Error.PASSWORD_MISSING, 'Missing password');\n    }\n\n    return config.userController\n      .updatePassword(username, token, new_password)\n      .then(\n        () => {\n          return Promise.resolve({\n            success: true,\n          });\n        },\n        err => {\n          return Promise.resolve({\n            success: false,\n            err,\n          });\n        }\n      )\n      .then(result => {\n        if (req.xhr) {\n          if (result.success) {\n            return Promise.resolve({\n              status: 200,\n              response: 'Password successfully reset',\n            });\n          }\n          if (result.err) {\n            throw new Parse.Error(Parse.Error.OTHER_CAUSE, `${result.err}`);\n          }\n        }\n\n        const query = result.success\n          ? {\n            [pageParams.username]: username,\n          }\n          : {\n            [pageParams.username]: username,\n            [pageParams.token]: token,\n            [pageParams.appId]: config.applicationId,\n            [pageParams.error]: result.err,\n            [pageParams.appName]: config.appName,\n          };\n        const page = result.success ? pages.passwordResetSuccess : pages.passwordReset;\n\n        return this.goToPage(req, page, query, false);\n      });\n  }\n\n  /**\n   * Returns page content if the page is a local file or returns a\n   * redirect to a custom page.\n   * @param {Object} req The express request.\n   * @param {Page} page The page to go to.\n   * @param {Object} [params={}] The query parameters to attach to the URL in case of\n   * HTTP redirect responses for POST requests, or the placeholders to fill into\n   * the response content in case of HTTP content responses for GET requests.\n   * @param {Boolean} [responseType] Is true if a redirect response should be forced,\n   * false if a content response should be forced, undefined if the response type\n   * should depend on the request type by default:\n   * - GET request -> content response\n   * - POST request -> redirect response (PRG pattern)\n   * @returns {Promise<Object>} The PromiseRouter response.\n   */\n  goToPage(req, page, params = {}, responseType) {\n    const config = req.config;\n\n    // Determine redirect either by force, response setting or request method\n    const redirect = config.pages.forceRedirect\n      ? true\n      : responseType !== undefined\n        ? responseType\n        : req.method == 'POST';\n\n    // Include default parameters\n    const defaultParams = this.getDefaultParams(config);\n    if (Object.values(defaultParams).includes(undefined)) {\n      return this.notFound();\n    }\n    params = Object.assign(params, defaultParams);\n\n    // Add locale to params to ensure it is passed on with every request;\n    // that means, once a locale is set, it is passed on to any follow-up page,\n    // e.g. request_password_reset -> password_reset -> password_reset_success\n    const locale = this.getLocale(req);\n    params[pageParams.locale] = locale;\n\n    // Compose paths and URLs\n    const defaultFile = page.defaultFile;\n    const defaultPath = this.defaultPagePath(defaultFile);\n    const defaultUrl = this.composePageUrl(defaultFile, config.publicServerURL);\n\n    // If custom URL is set redirect to it without localization\n    const customUrl = config.pages.customUrls[page.id];\n    if (customUrl && !Utils.isPath(customUrl)) {\n      return this.redirectResponse(customUrl, params);\n    }\n\n    // Get JSON placeholders\n    let placeholders = {};\n    if (config.pages.enableLocalization && config.pages.localizationJsonPath) {\n      placeholders = this.getJsonPlaceholders(locale, params);\n    }\n\n    // Send response\n    if (config.pages.enableLocalization && locale) {\n      return Utils.getLocalizedPath(defaultPath, locale).then(({ path, subdir }) =>\n        redirect\n          ? this.redirectResponse(\n            this.composePageUrl(defaultFile, config.publicServerURL, subdir),\n            params\n          )\n          : this.pageResponse(path, params, placeholders)\n      );\n    } else {\n      return redirect\n        ? this.redirectResponse(defaultUrl, params)\n        : this.pageResponse(defaultPath, params, placeholders);\n    }\n  }\n\n  /**\n   * Serves a request to a static resource and localizes the resource if it\n   * is a HTML file.\n   * @param {Object} req The request object.\n   * @returns {Promise<Object>} The response.\n   */\n  staticRoute(req) {\n    // Get requested path\n    const relativePath = req.params[0];\n\n    // Resolve requested path to absolute path\n    const absolutePath = path.resolve(this.pagesPath, relativePath);\n\n    // If the requested file is not a HTML file send its raw content\n    if (!absolutePath || !absolutePath.endsWith('.html')) {\n      return this.fileResponse(absolutePath);\n    }\n\n    // Get parameters\n    const params = this.getDefaultParams(req.config);\n    const locale = this.getLocale(req);\n    if (locale) {\n      params.locale = locale;\n    }\n\n    // Get JSON placeholders\n    const placeholders = this.getJsonPlaceholders(locale, params);\n\n    return this.pageResponse(absolutePath, params, placeholders);\n  }\n\n  /**\n   * Returns a translation from the JSON resource for a given locale. The JSON\n   * resource is parsed according to i18next syntax.\n   *\n   * Example JSON content:\n   * ```js\n   *  {\n   *    \"en\": {               // resource for language `en` (English)\n   *      \"translation\": {\n   *        \"greeting\": \"Hello!\"\n   *      }\n   *    },\n   *    \"de\": {               // resource for language `de` (German)\n   *      \"translation\": {\n   *        \"greeting\": \"Hallo!\"\n   *      }\n   *    }\n   *    \"de-CH\": {            // resource for locale `de-CH` (Swiss German)\n   *      \"translation\": {\n   *        \"greeting\": \"Grüezi!\"\n   *      }\n   *    }\n   *  }\n   * ```\n   * @param {String} locale The locale to translate to.\n   * @returns {Object} The translation or an empty object if no matching\n   * translation was found.\n   */\n  getJsonTranslation(locale) {\n    // If there is no JSON resource\n    if (this.jsonParameters === undefined) {\n      return {};\n    }\n\n    // If locale is not set use the fallback locale\n    locale = locale || this.pagesConfig.localizationFallbackLocale;\n\n    // Get matching translation by locale, language or fallback locale\n    const language = locale.split('-')[0];\n    const resource =\n      this.jsonParameters[locale] ||\n      this.jsonParameters[language] ||\n      this.jsonParameters[this.pagesConfig.localizationFallbackLocale] ||\n      {};\n    const translation = resource.translation || {};\n    return translation;\n  }\n\n  /**\n   * Returns a translation from the JSON resource for a given locale with\n   * placeholders filled in by given parameters.\n   * @param {String} locale The locale to translate to.\n   * @param {Object} params The parameters to fill into any placeholders\n   * within the translations.\n   * @returns {Object} The translation or an empty object if no matching\n   * translation was found.\n   */\n  getJsonPlaceholders(locale, params = {}) {\n    // If localization is disabled or there is no JSON resource\n    if (!this.pagesConfig.enableLocalization || !this.pagesConfig.localizationJsonPath) {\n      return {};\n    }\n\n    // Get JSON placeholders\n    let placeholders = this.getJsonTranslation(locale);\n\n    // Fill in any placeholders in the translation; this allows a translation\n    // to contain default placeholders like {{appName}} which are filled here\n    placeholders = JSON.stringify(placeholders);\n    placeholders = mustache.render(placeholders, params);\n    placeholders = JSON.parse(placeholders);\n\n    return placeholders;\n  }\n\n  /**\n   * Creates a response with file content.\n   * @param {String} path The path of the file to return.\n   * @param {Object} [params={}] The parameters to be included in the response\n   * header. These will also be used to fill placeholders.\n   * @param {Object} [placeholders={}] The placeholders to fill in the content.\n   * These will not be included in the response header.\n   * @returns {Object} The Promise Router response.\n   */\n  async pageResponse(path, params = {}, placeholders = {}) {\n    // Get file content\n    let data;\n    try {\n      data = await this.readFile(path);\n    } catch (e) {\n      return this.notFound();\n    }\n\n    // Get config placeholders; can be an object, a function or an async function\n    let configPlaceholders =\n      typeof this.pagesConfig.placeholders === 'function'\n        ? this.pagesConfig.placeholders(params)\n        : Object.prototype.toString.call(this.pagesConfig.placeholders) === '[object Object]'\n          ? this.pagesConfig.placeholders\n          : {};\n    if (configPlaceholders instanceof Promise) {\n      configPlaceholders = await configPlaceholders;\n    }\n\n    // Fill placeholders\n    const allPlaceholders = Object.assign({}, configPlaceholders, placeholders);\n    const paramsAndPlaceholders = Object.assign({}, params, allPlaceholders);\n    data = mustache.render(data, paramsAndPlaceholders);\n\n    // Add placeholders in header to allow parsing for programmatic use\n    // of response, instead of having to parse the HTML content.\n    const headers = Object.entries(params).reduce((m, p) => {\n      if (p[1] !== undefined) {\n        m[`${pageParamHeaderPrefix}${p[0].toLowerCase()}`] = p[1];\n      }\n      return m;\n    }, {});\n\n    return { text: data, headers: headers };\n  }\n\n  /**\n   * Creates a response with file content.\n   * @param {String} path The path of the file to return.\n   * @returns {Object} The PromiseRouter response.\n   */\n  async fileResponse(path) {\n    // Get file content\n    let data;\n    try {\n      data = await this.readFile(path);\n    } catch (e) {\n      return this.notFound();\n    }\n\n    return { text: data };\n  }\n\n  /**\n   * Reads and returns the content of a file at a given path. File reading to\n   * serve content on the static route is only allowed from the pages\n   * directory on downwards.\n   * -----------------------------------------------------------------------\n   * **WARNING:** All file reads in the PagesRouter must be executed by this\n   * wrapper because it also detects and prevents common exploits.\n   * -----------------------------------------------------------------------\n   * @param {String} filePath The path to the file to read.\n   * @returns {Promise<String>} The file content.\n   */\n  async readFile(filePath) {\n    // Normalize path to prevent it from containing any directory changing\n    // UNIX patterns which could expose the whole file system, e.g.\n    // `http://example.com/parse/apps/../file.txt` requests a file outside\n    // of the pages directory scope.\n    const normalizedPath = path.normalize(filePath);\n\n    // Abort if the path is outside of the path directory scope\n    if (!normalizedPath.startsWith(this.pagesPath)) {\n      throw errors.fileOutsideAllowedScope;\n    }\n\n    return await fs.readFile(normalizedPath, 'utf-8');\n  }\n\n  /**\n   * Loads a language resource JSON file that is used for translations.\n   */\n  loadJsonResource() {\n    if (this.pagesConfig.localizationJsonPath === undefined) {\n      return;\n    }\n    try {\n      const json = require(path.resolve('./', this.pagesConfig.localizationJsonPath));\n      this.jsonParameters = json;\n    } catch (e) {\n      throw errors.jsonFailedFileLoading;\n    }\n  }\n\n  /**\n   * Extracts and returns the page default parameters from the Parse Server\n   * configuration. These parameters are made accessible in every page served\n   * by this router.\n   * @param {Object} config The Parse Server configuration.\n   * @returns {Object} The default parameters.\n   */\n  getDefaultParams(config) {\n    return config\n      ? {\n        [pageParams.appId]: config.appId,\n        [pageParams.appName]: config.appName,\n        [pageParams.publicServerUrl]: config.publicServerURL,\n      }\n      : {};\n  }\n\n  /**\n   * Extracts and returns the locale from an express request.\n   * @param {Object} req The express request.\n   * @returns {String|undefined} The locale, or undefined if no locale was set.\n   */\n  getLocale(req) {\n    const locale =\n      (req.query || {})[pageParams.locale] ||\n      (req.body || {})[pageParams.locale] ||\n      (req.params || {})[pageParams.locale] ||\n      (req.headers || {})[pageParamHeaderPrefix + pageParams.locale];\n    return locale;\n  }\n\n  /**\n   * Creates a response with http redirect.\n   * @param {Object} req The express request.\n   * @param {String} path The path of the file to return.\n   * @param {Object} params The query parameters to include.\n   * @returns {Object} The Promise Router response.\n   */\n  async redirectResponse(url, params) {\n    // Remove any parameters with undefined value\n    params = Object.entries(params).reduce((m, p) => {\n      if (p[1] !== undefined) {\n        m[p[0]] = p[1];\n      }\n      return m;\n    }, {});\n\n    // Compose URL with parameters in query\n    const location = new URL(url);\n    Object.entries(params).forEach(p => location.searchParams.set(p[0], p[1]));\n    const locationString = location.toString();\n\n    // Add parameters to header to allow parsing for programmatic use\n    // of response, instead of having to parse the HTML content.\n    const headers = Object.entries(params).reduce((m, p) => {\n      if (p[1] !== undefined) {\n        m[`${pageParamHeaderPrefix}${p[0].toLowerCase()}`] = p[1];\n      }\n      return m;\n    }, {});\n\n    return {\n      status: 303,\n      location: locationString,\n      headers: headers,\n    };\n  }\n\n  defaultPagePath(file) {\n    return path.join(this.pagesPath, file);\n  }\n\n  composePageUrl(file, publicServerUrl, locale) {\n    let url = publicServerUrl;\n    url += url.endsWith('/') ? '' : '/';\n    url += this.pagesEndpoint + '/';\n    url += locale === undefined ? '' : locale + '/';\n    url += file;\n    return url;\n  }\n\n  notFound() {\n    return {\n      text: 'Not found.',\n      status: 404,\n    };\n  }\n\n  invalidRequest() {\n    const error = new Error();\n    error.status = 403;\n    error.message = 'unauthorized';\n    throw error;\n  }\n\n  /**\n   * Sets the Parse Server configuration in the request object to make it\n   * easily accessible throughtout request processing.\n   * @param {Object} req The request.\n   * @param {Boolean} failGracefully Is true if failing to set the config should\n   * not result in an invalid request response. Default is `false`.\n   */\n  setConfig(req, failGracefully = false) {\n    req.config = Config.get(req.params.appId || req.query.appId);\n    if (!req.config && !failGracefully) {\n      this.invalidRequest();\n    }\n    return Promise.resolve();\n  }\n\n  mountPagesRoutes() {\n    this.route(\n      'GET',\n      `/${this.pagesEndpoint}/:appId/verify_email`,\n      req => {\n        this.setConfig(req);\n      },\n      req => {\n        return this.verifyEmail(req);\n      }\n    );\n\n    this.route(\n      'POST',\n      `/${this.pagesEndpoint}/:appId/resend_verification_email`,\n      req => {\n        this.setConfig(req);\n      },\n      req => {\n        return this.resendVerificationEmail(req);\n      }\n    );\n\n    this.route(\n      'GET',\n      `/${this.pagesEndpoint}/choose_password`,\n      req => {\n        this.setConfig(req);\n      },\n      req => {\n        return this.passwordReset(req);\n      }\n    );\n\n    this.route(\n      'POST',\n      `/${this.pagesEndpoint}/:appId/request_password_reset`,\n      req => {\n        this.setConfig(req);\n      },\n      req => {\n        return this.resetPassword(req);\n      }\n    );\n\n    this.route(\n      'GET',\n      `/${this.pagesEndpoint}/:appId/request_password_reset`,\n      req => {\n        this.setConfig(req);\n      },\n      req => {\n        return this.requestResetPassword(req);\n      }\n    );\n  }\n\n  mountCustomRoutes() {\n    for (const route of this.pagesConfig.customRoutes || []) {\n      this.route(\n        route.method,\n        `/${this.pagesEndpoint}/:appId/${route.path}`,\n        req => {\n          this.setConfig(req);\n        },\n        async req => {\n          const { file, query = {} } = (await route.handler(req)) || {};\n\n          // If route handler did not return a page send 404 response\n          if (!file) {\n            return this.notFound();\n          }\n\n          // Send page response\n          const page = new Page({ id: file, defaultFile: file });\n          return this.goToPage(req, page, query, false);\n        }\n      );\n    }\n  }\n\n  mountStaticRoute() {\n    this.route(\n      'GET',\n      `/${this.pagesEndpoint}/(*)?`,\n      req => {\n        this.setConfig(req, true);\n      },\n      req => {\n        return this.staticRoute(req);\n      }\n    );\n  }\n\n  expressRouter() {\n    const router = express.Router();\n    router.use('/', super.expressRouter());\n    return router;\n  }\n}\n\nexport default PagesRouter;\nmodule.exports = {\n  PagesRouter,\n  pageParamHeaderPrefix,\n  pageParams,\n  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