projectSecondPart/Problem2 - Copied over webServer.js from old projectSecondPart.

projectSecondPart/webServer.js

+/*
+ * A simple Node.js program for exporting the current working directory via a webserver listing
+ * on a hard code (see portno below) port. To start the webserver run the command:
+ *    node webServer.js
+ *
+ * Note that anyone able to connect to localhost:3001 will be able to fetch any file accessible
+ * to the current user in the current directory or any of its children.
+ */
+
+/* jshint node: true */
+
+const express = require('express');
+
+const portno = 3000; // Port number to use
+
+const app = express();
+
+const cs142models = require('./modelData/photoApp.js').cs142models;
+
+// We have the express static module (http://expressjs.com/en/starter/static-files.html) do all
+// the work for us.
+app.use(express.static(__dirname));
+
+app.get('/', function (request, response) {
+	response.send(`Simple web server of files from ${__dirname}`);
+});
+
+app.get('/test/:p1', function (request, response) {
+	// Express parses the ":p1" from the URL and returns it in the request.params objects.
+	const param = request.params.p1;
+	console.log('/test called with param1 = ', param);
+	if (param !== 'info') {
+		console.error('Nothing to be done for param: ', param);
+		response.status(400).send('Not found');
+		return;
+	}
+
+	const info = cs142models.schemaInfo();
+
+	// Query didn't return an error but didn't find the SchemaInfo object - This
+	// is also an internal error return.
+	if (info.length === 0) {
+		response.status(500).send('Missing SchemaInfo');
+		return;
+	}
+	response.status(200).send(info);
+});
+
+/*
+ * URL /user/list - Return all the User object.
+ */
+app.get('/user/list', function (request, response) {
+	response.status(200).send(cs142models.userListModel());
+	return;
+});
+
+
+/*
+ * URL /user/:id - Return the information for User (id)
+ */
+app.get('/user/:id', function (request, response) {
+	const id = request.params.id;
+	const user = cs142models.userModel(id);
+	if (user === null) {
+		console.log(`User with _id:${id} not found.`);
+		response.status(400).send('Not found');
+		return;
+	}
+	response.status(200).send(user);
+	return;
+});
+
+/*
+ * URL /photosOfUser/:id - Return the Photos for User (id)
+ */
+app.get('/photosOfUser/:id', function (request, response) {
+	const id = request.params.id;
+	const photos = cs142models.photoOfUserModel(id);
+	if (photos.length === 0) {
+		console.log(`Photos for user with _id:${id} not found.`);
+		response.status(400).send('Not found');
+		return;
+	}
+	response.status(200).send(photos);
+});
+
+
+const server = app.listen(portno, function () {
+	const port = server.address().port;
+	console.log(`Listening at http://localhost:${port} exporting the directory ${__dirname}`);
+});