Initial commit

server.js

@@ -0,0 +1,84 @@
+const express = require("express");
+const path = require("path");
+const fileUpload = require("express-fileupload");
+const basicAuth = require("express-basic-auth");
+const fs = require("fs");
+const app_conf = require("./app/config/app.conf.js");
+
+const public_routes = require('./app/routes/public_routes');
+const private_routes = require('./app/routes/private_routes');
+
+const logger = require("./app/utils/logger.util.js");
+
+const app = express();
+var shutting_down = false;
+
+/*
+ * Static middleware - serve css and js files to public
+ */
+app.use(express.json());
+app.use(fileUpload({
+    limits: { fileSize: 102400 },
+    useTempFiles: true,
+    tempFileDir: path.join(__dirname, app_conf.temp_directory)
+}));
+
+app.use("/", public_routes);
+
+app.use("/app", basicAuth({
+    users: {
+        [app_conf.username]: app_conf.password
+    },
+    challenge: true
+}), private_routes);
+
+/*
+ * Initialise ExpressJS
+ * Using ejs to pass variables from ExpressJS to HTML pages.
+ */
+app.set("view engine", "ejs");
+app.set("views", path.join(__dirname, app_conf.views_directory));
+const server = app.listen(app_conf.port, (error) => {
+    logger.info("Starting Database Editor.");
+
+
+    fs.rm(path.join(__dirname, app_conf.temp_directory, "/."), { recursive: true }, (error) => {
+        if (error == null) {
+            logger.info("Removed temp directory.");
+        } else if (error.code === "ENOENT") {
+            logger.info("Temp directory not found.");
+        } else {
+            logger.error(error.message);
+        }
+    });
+
+    if (error) {
+        logger.error(error.message);
+        shutdown();
+    } else {
+        logger.info(`Listening to port ${app_conf.port}.`);
+    }
+})
+
+/*
+ * Handle Ctrl+C to shutdown gracefully
+ */
+process.on("SIGINT", () => {
+    if (shutting_down) {
+        logger.emerg("Shutting down forcefully.");
+        process.exit(-1);
+    } else {
+        shutdown();
+    }
+});
+
+/*
+ * This function shuts the server down
+ */
+function shutdown() {
+    shutting_down = true;
+
+    server.close(() => {
+        logger.info("Shutting down server.");
+    });
+}