388 lines
14 KiB
JavaScript
388 lines
14 KiB
JavaScript
'use strict';
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module.exports.create = function (xconfx, apiFactories, apiDeps) {
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var PromiseA = apiDeps.Promise;
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var mkdirpAsync = PromiseA.promisify(require('mkdirp'));
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//var express = require('express');
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var express = require('express-lazy');
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var fs = PromiseA.promisifyAll(require('fs'));
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var path = require('path');
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var localCache = { rests: {}, pkgs: {} };
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// TODO xconfx.apispath
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xconfx.restPath = path.join(__dirname, '..', '..', 'packages', 'rest');
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xconfx.apiPath = path.join(__dirname, '..', '..', 'packages', 'api');
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xconfx.appApiGrantsPath = path.join(__dirname, '..', '..', 'packages', 'client-api-grants');
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xconfx.appConfigPath = path.join(__dirname, '..', '..', 'var');
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function notConfigured(req, res) {
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var msg = "api package '" + req.pkgId + "' not configured for client uri '" + req.experienceId + "'"
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+ ". To configure it place a new line '" + req.pkgId + "' in the file '/srv/walnut/packages/client-api-grants/" + req.experienceId + "'"
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;
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res.send({ error: { message: msg } });
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}
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/*
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function isThisPkgInstalled(myConf, pkgId) {
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}
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*/
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function isThisClientAllowedToUseThisPkg(myConf, clientUrih, pkgId) {
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var appApiGrantsPath = path.join(myConf.appApiGrantsPath, clientUrih);
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return fs.readFileAsync(appApiGrantsPath, 'utf8').then(function (text) {
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console.log('sanity', text);
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return text.trim().split(/\n/);
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}, function (err) {
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if ('ENOENT' !== err.code) {
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console.error(err);
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}
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return [];
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}).then(function (apis) {
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if (apis.some(function (api) {
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if (api === pkgId) {
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console.log(api, pkgId, api === pkgId);
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return true;
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}
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})) {
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return true;
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}
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if (clientUrih === ('api.' + xconfx.setupDomain) && 'org.oauth3.consumer' === pkgId) {
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// fallthrough
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return true;
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} else {
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return null;
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}
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});
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}
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function getSitePackageConfig(clientUrih, pkgId) {
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var siteConfigPath = path.join(xconfx.appConfigPath, clientUrih);
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return mkdirpAsync(siteConfigPath).then(function () {
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return fs.readFileAsync(path.join(siteConfigPath, pkgId + '.json'), 'utf8').then(function (text) {
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return JSON.parse(text);
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}).then(function (data) { return data; }, function (/*err*/) { return {}; });
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});
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}
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function getSiteConfig(clientUrih) {
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// TODO test if the requesting package has permission to the root-level site config
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var siteConfigPath = path.join(xconfx.appConfigPath, clientUrih);
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return mkdirpAsync(siteConfigPath).then(function () {
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return fs.readFileAsync(path.join(siteConfigPath, 'config.json'), 'utf8').then(function (text) {
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return JSON.parse(text);
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}).then(function (data) { return data; }, function (/*err*/) { return {}; });
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});
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}
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var modelsCache = {};
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function getSiteStore(clientUrih, pkgId, dir) {
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if (modelsCache[clientUrih]) {
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return modelsCache[clientUrih];
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}
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// DB scopes:
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// system (global)
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// experience (per domain)
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// api (per api)
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// account (per user account)
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// client (per 3rd party client)
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// scope Experience to db
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// scope Api by table
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// scope Account and Client by column
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modelsCache[clientUrih] = apiFactories.systemSqlFactory.create({
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init: true
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, dbname: clientUrih // '#' is a valid file name character
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}).then(function (db) {
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var wrap = require('masterquest-sqlite3');
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return wrap.wrap(db, dir).then(function (models) {
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modelsCache[clientUrih] = PromiseA.resolve(models);
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return models;
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});
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});
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return modelsCache[clientUrih];
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}
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function loadRestHelper(myConf, clientUrih, pkgId) {
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var pkgPath = path.join(myConf.restPath, pkgId);
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var pkgLinks = [];
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pkgLinks.push(pkgId);
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// TODO allow recursion, but catch cycles
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return fs.lstatAsync(pkgPath).then(function (stat) {
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if (!stat.isFile()) {
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return;
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}
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return fs.readFileAsync(pkgPath, 'utf8').then(function (text) {
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pkgId = text.trim();
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pkgPath = path.join(myConf.restPath, pkgId);
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});
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}, function () {
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// ignore error
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return;
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}).then(function () {
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// TODO should not require package.json. Should work with files alone.
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return fs.readFileAsync(path.join(pkgPath, 'package.json'), 'utf8').then(function (text) {
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var pkg = JSON.parse(text);
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var pkgDeps = {};
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var myApp;
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if (pkg.walnut) {
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pkgPath = path.join(pkgPath, pkg.walnut);
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}
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Object.keys(apiDeps).forEach(function (key) {
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pkgDeps[key] = apiDeps[key];
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});
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Object.keys(apiFactories).forEach(function (key) {
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pkgDeps[key] = apiFactories[key];
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});
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// TODO pull db stuff from package.json somehow and pass allowed data models as deps
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//
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// how can we tell which of these would be correct?
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// deps.memstore = apiFactories.memstoreFactory.create(pkgId);
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// deps.memstore = apiFactories.memstoreFactory.create(req.experienceId);
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// deps.memstore = apiFactories.memstoreFactory.create(req.experienceId + pkgId);
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// let's go with this one for now and the api can choose to scope or not to scope
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pkgDeps.memstore = apiFactories.memstoreFactory.create(pkgId);
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console.log('DEBUG pkgPath', pkgPath);
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myApp = express();
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myApp.handlePromise = require('./lib/common').promisableRequest;
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myApp.handleRejection = require('./lib/common').rejectableRequest;
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var _getOauth3Controllers = pkgDeps.getOauth3Controllers = require('oauthcommon/example-oauthmodels').create(
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{ sqlite3Sock: xconfx.sqlite3Sock, ipcKey: xconfx.ipcKey }
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).getControllers;
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//require('oauthcommon').inject(packagedApi._getOauth3Controllers, packagedApi._api, pkgConf, pkgDeps);
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require('oauthcommon').inject(_getOauth3Controllers, myApp/*, pkgConf, pkgDeps*/);
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myApp.use('/public', function preHandler(req, res, next) {
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// TODO authenticate or use guest user
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next();
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});
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myApp.use('/', function preHandler(req, res, next) {
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return getSiteConfig(clientUrih).then(function (siteConfig) {
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Object.defineProperty(req, 'getSiteMailer', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: function getSiteMailerProp() {
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var nodemailer = require('nodemailer');
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var transport = require('nodemailer-mailgun-transport');
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//var mailconf = require('../../../com.daplie.mailer/config.mailgun');
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var mailconf = siteConfig['mailgun.org'];
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var mailer = PromiseA.promisifyAll(nodemailer.createTransport(transport(mailconf)));
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return mailer;
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}
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});
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Object.defineProperty(req, 'getSiteConfig', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: function getSiteMailerProp(section) {
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return PromiseA.resolve((siteConfig || {})[section]);
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}
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});
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Object.defineProperty(req, 'getSitePackageConfig', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: function getSitePackageConfigProp() {
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return getSitePackageConfig(clientUrih, pkgId);
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}
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});
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Object.defineProperty(req, 'getSiteStore', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: function getSiteStoreProp() {
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var restPath = path.join(myConf.restPath, pkgId);
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var apiPath = path.join(myConf.apiPath, pkgId);
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var dir;
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// TODO usage package.json as a falback if the standard location is not used
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try {
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dir = require(path.join(apiPath, 'models.js'));
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} catch(e) {
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dir = require(path.join(restPath, 'models.js'));
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}
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return getSiteStore(clientUrih, pkgId, dir);
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}
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});
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/*
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Object.defineProperty(req, 'getSitePayments', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: function getSitePaymentsProp() {
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}
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});
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*/
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// TODO allow third-party clients stripe ids destination
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// https://stripe.com/docs/connect/payments-fees
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req.Stripe = require('stripe')(siteConfig['stripe.com'].live.secret);
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req.StripeTest = require('stripe')(siteConfig['stripe.com'].test.secret);
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req._walnutOriginalUrl = req.url;
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// "/path/api/com.example/hello".replace(/.*\/api\//, '').replace(/([^\/]*\/+)/, '/') => '/hello'
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req.url = req.url.replace(/\/api\//, '').replace(/.*\/api\//, '').replace(/([^\/]*\/+)/, '/');
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console.log('[prehandler] req.url', req.url);
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next();
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});
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});
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//
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// TODO handle /accounts/:accountId
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//
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return PromiseA.resolve(require(pkgPath).create({
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etcpath: xconfx.etcpath
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}/*pkgConf*/, pkgDeps/*pkgDeps*/, myApp/*myApp*/)).then(function (handler) {
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myApp.use('/', function postHandler(req, res, next) {
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req.url = req._walnutOriginalUrl;
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console.log('[posthandler] req.url', req.url);
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next();
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});
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localCache.pkgs[pkgId] = { pkgId: pkgId, pkg: pkg, handler: handler || myApp, createdAt: Date.now() };
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pkgLinks.forEach(function (pkgLink) {
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localCache.pkgs[pkgLink] = localCache.pkgs[pkgId];
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});
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return localCache.pkgs[pkgId];
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});
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});
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});
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}
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// Read packages/apis/sub.sld.tld (forward dns) to find list of apis as tld.sld.sub (reverse dns)
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// TODO packages/allowed_apis/sub.sld.tld (?)
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// TODO auto-register org.oauth3.consumer for primaryDomain (and all sites?)
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function loadRestHandler(myConf, clientUrih, pkgId) {
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return PromiseA.resolve().then(function () {
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if (!localCache.pkgs[pkgId]) {
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return loadRestHelper(myConf, clientUrih, pkgId);
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}
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return localCache.pkgs[pkgId];
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// TODO expire require cache
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/*
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if (Date.now() - localCache.pkgs[pkgId].createdAt < (5 * 60 * 1000)) {
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return;
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}
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*/
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}, function (/*err*/) {
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// TODO what kind of errors might we want to handle?
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return null;
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}).then(function (restPkg) {
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return restPkg;
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});
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}
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var CORS = require('connect-cors');
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var cors = CORS({ credentials: true, headers: [
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'X-Requested-With'
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, 'X-HTTP-Method-Override'
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, 'Content-Type'
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, 'Accept'
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, 'Authorization'
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], methods: [ "GET", "POST", "PATCH", "PUT", "DELETE" ] });
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var staleAfter = (5 * 60 * 1000);
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return function (req, res, next) {
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cors(req, res, function () {
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console.log('[sanity check]', req.url);
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// Canonical client names
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// example.com should use api.example.com/api for all requests
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// sub.example.com/api should resolve to sub.example.com
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// example.com/subpath/api should resolve to example.com#subapp
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// sub.example.com/subpath/api should resolve to sub.example.com#subapp
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var clientUrih = req.hostname.replace(/^api\./, '') + req.url.replace(/\/api\/.*/, '/').replace(/\/+/g, '#').replace(/#$/, '');
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// Canonical package names
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// '/api/com.daplie.hello/hello' should resolve to 'com.daplie.hello'
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// '/subapp/api/com.daplie.hello/hello' should also 'com.daplie.hello'
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// '/subapp/api/com.daplie.hello/' may exist... must be a small api
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var pkgId = req.url.replace(/.*\/api\//, '').replace(/^\//, '').replace(/\/.*/, '');
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var now = Date.now();
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var hasBeenHandled = false;
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// Existing (Deprecated)
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Object.defineProperty(req, 'experienceId', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: clientUrih
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});
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Object.defineProperty(req, 'apiId', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: pkgId
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});
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// New
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Object.defineProperty(req, 'clientUrih', {
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enumerable: true
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, configurable: false
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, writable: false
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// TODO this identifier may need to be non-deterministic as to transfer if a domain name changes but is still the "same" app
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// (i.e. a company name change. maybe auto vs manual register - just like oauth3?)
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// NOTE: probably best to alias the name logically
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, value: clientUrih
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});
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Object.defineProperty(req, 'pkgId', {
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enumerable: true
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, configurable: false
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, writable: false
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, value: pkgId
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});
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// TODO cache permission (although the FS is already cached, NBD)
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return isThisClientAllowedToUseThisPkg(xconfx, clientUrih, pkgId).then(function (yes) {
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if (!yes) {
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notConfigured(req, res);
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return null;
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}
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if (localCache.rests[pkgId]) {
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localCache.rests[pkgId].handler(req, res, next);
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hasBeenHandled = true;
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if (now - localCache.rests[pkgId].createdAt > staleAfter) {
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localCache.rests[pkgId] = null;
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}
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}
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if (!localCache.rests[pkgId]) {
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//return doesThisPkgExist
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return loadRestHandler(xconfx, clientUrih, pkgId).then(function (myHandler) {
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if (!myHandler) {
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notConfigured(req, res);
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return;
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}
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localCache.rests[pkgId] = { handler: myHandler.handler, createdAt: now };
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if (!hasBeenHandled) {
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myHandler.handler(req, res, next);
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}
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});
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}
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});
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});
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};
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};
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