139 lines
3.7 KiB
JavaScript
139 lines
3.7 KiB
JavaScript
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require("include-path")(["./lib"]);
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const express = require("express");
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//to parser body as json fetch must have parameter
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//headers: {
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// 'Content-Type': 'application/json',
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//},
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const bodyParser = require("body-parser");
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const path = require("path");
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const cookieParser = require("cookie-parser");
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const http = require("http");
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//Helpers
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const HelperXhr = require("HelperXhr");
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//Logs nodejs
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//--> http: morgan
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const morgan = require("morgan");
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const logger = require("logger");
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//cors
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const cors = require("cors");
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//framework express
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const app = express();
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//Body parser
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(bodyParser.json());
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//API routes
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const routes = require("./routes.js");
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//Swagger UI
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const swaggerUi = require("swagger-ui-express");
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const YAML = require("yamljs");
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const swaggerDocumentCore = YAML.load("./openapi.yaml");
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const swaggeroptions = {
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explorer: true,
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};
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//cors options - no options
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app.use(cors({}));
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/**
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* explainations : https://dev.to/p0oker/why-is-my-browser-sending-an-options-http-request-instead-of-post-5621
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*/
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app.use(function (req, res, next) {
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res.header("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE, OPTIONS");
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res.header(
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"Access-Control-Allow-Headers",
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"Content-Type, InstantKey, Content-Length, X-Requested-With"
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);
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//OPTIONS methods interception
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if ("OPTIONS" === req.method) {
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res.sendStatus(200);
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} else {
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next();
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}
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});
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// listening port server
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app.set("PORT", process.env.PORT || "4000");
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// listening IP address server
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app.set("IPADDRESS", process.env.IPADDRESS || "0.0.0.0");
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// Max size allowed to upload Json files (Default is 2Mo)
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app.set("JSONMAXSIZE", process.env.JSONMAXSIZE || 2 * 1024 * 1024);
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//logger become global to controller via req.app.get('logger')
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app.set("logger", logger);
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//Application logs - format see wiki about morgan logs
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let loghttpformat = "combined";
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app.use(express.json());
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app.use(express.urlencoded({ extended: false }));
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app.use(cookieParser());
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app.use(express.static(path.join(__dirname, "public")));
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//set log http
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app.use(morgan(loghttpformat));
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// Routes
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try {
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// route / load public content
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app.use("/", express.static(path.join(__dirname, "public")));
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// route /api-docs load Swagger UI
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app.use(
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"/api-docs",
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swaggerUi.serve,
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swaggerUi.setup(swaggerDocumentCore, swaggeroptions)
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);
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// route /xxx-xxx-xxxx where xxx-xxx-xxx is a diagram Id
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app.use(
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"/:diagramId",
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express.static(path.join(__dirname, "public", "index.html"))
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);
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// API Routes
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app.use(routes);
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} catch (err) {
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// logger.error(err.toString(), err);
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logger.error(err.toString(), err);
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}
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// resource not found - 404 and forward to error handler
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app.use(function (req, res, next) {
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console.log("Resource is missing");
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req.statusCode = 404;
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next(new Error(), req, res);
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});
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// Global error handler
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app.use(function (err, req, res, next) {
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let statuscode = req.statusCode; //404 received ???
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if (!statuscode) statuscode = 500;
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if (statuscode !== 404) {
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logger.error(err.toString(), err);
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message = "Internal Error - see logs";
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} else {
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message = "404-Resource Not Found";
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}
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if (HelperXhr.isXhrRequest(req)) {
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res.status(statuscode).json({ error: message });
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} else {
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res.status(statuscode).send("<html><h1>" + message + "</h1></html>");
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}
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});
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const httpServer = http.createServer(app);
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//catch httpServer Errors type uncaughtException :EADDRNOTAVAIL EADDRINUSE
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process.on("uncaughtException", function (err) {
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logger.error(err.toString(), err);
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});
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//start server
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httpServer.listen(app.get("PORT"), app.get("IPADDRESS"), function () {
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logger.info({
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listeningonipaddress: app.get("IPADDRESS"),
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listeningonport: app.get("PORT"),
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});
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});
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module.exports = app;
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