240 lines
8.5 KiB
JavaScript
240 lines
8.5 KiB
JavaScript
var express = require("express");
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var hbs = require('express-hbs');
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require('handlebars-form-helpers').register(hbs.handlebars);
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var nodemailer = require('nodemailer');
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var alertmonUtils = require('./alertmonUtils.js');
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var fs = require("fs");
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var bodyParser = require("body-parser");
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var app = express();
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var logfile = fs.createWriteStream('./db/log.log', {flags: 'a'});
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// Setup email
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var transporter = nodemailer.createTransport({
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service: 'Gmail',
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auth: {
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user: 'alertmonitorfl@gmail.com',
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pass: '6g*hkvVc%91oo3#$'
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}
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});
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var mailOptions = {
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from: 'Alert Monitor <alertmonitorfl@gmail.com>',
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to: 'jody@kaplon.us,don@gettner.com',
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subject: 'Alert received',
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text: 'test alert' // Get custom text later on email generation.
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};
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var file = "./db/test.db";
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var exists = fs.existsSync(file);
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if(!exists) {
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console.log("Creating DB file.");
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fs.openSync(file, "w");
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}
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var sqlite3 = require("sqlite3").verbose();
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var db = new sqlite3.Database(file);
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db.serialize(function() {
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if(!exists) {
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db.run(
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"CREATE TABLE Alerts (" +
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"origJSON TEXT," +
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"coreId TEXT," +
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"status TEXT," +
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"published_at TEXT) " +
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"CREATE TABLE Cores (" +
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"coreId TEXT PRIMARY KEY," +
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"coreName TEXT," +
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"locationDesc TEXT)"
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);
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}
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});
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app.use(bodyParser.json()); // Needed for JSON POST requests from Particle Cores.
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app.use(bodyParser.urlencoded({ extended: false })); // Needed for web POST requests from edit form.
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// Use `.hbs` for extensions and find partials in `views/partials`.
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app.engine('hbs', hbs.express4({
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partialsDir: __dirname + '/views/partials'
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}));
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app.set('view engine', 'hbs');
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app.set('views', __dirname + '/views');
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app.get('/', function(req, res){
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var d = new Date();
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console.log("GET /, " + JSON.stringify(d, 4));
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var devIndexQry =
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"select al.coreId, max(co.coreName) as coreName, max(co.locationDesc) as locationDesc, max(published_at) as MaxPub, max(status) as MaxStatus " +
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"from Alerts al " +
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"left join Cores co on al.coreId = co.coreId " +
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"group by al.coreId;";
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db.all(devIndexQry, function(err, rows){
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if(err !== null) {
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console.log(err);
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} else {
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//console.log(rows);
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// Loop over elements in rows array, convert ugly UTC times to pretty local times.
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rows.forEach(function(row){
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row.MaxPubDate = alertmonUtils.getLocDateFromUTC(row.MaxPub);
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row.MaxPubTime = alertmonUtils.getLocTimeFromUTC(row.MaxPub);
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});
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res.render('index', {cores: rows}, function(err, html) {
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if(err !== null) {
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console.log(err);
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} else {
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res.send(html);
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}
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});
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}
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});
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});
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app.get('/core/edit/:id', function(req, res){
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var d = new Date();
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var coreId = req.params.id;
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console.log("GET /core/edit/" + coreId + ", " + JSON.stringify(d, 4));
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db.all("select coreName, locationDesc from Cores where coreId = ?;", coreId, function(err, rows){
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if(err !== null) {
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console.log(err);
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} else {
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res.render('core-edit', {values: rows}, function(err, html) {
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if(err !== null) {
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console.log(err);
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} else {
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res.send(html);
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}
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});
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}
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});
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});
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app.post('/core/edit/:id', function(req, res){
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var d = new Date();
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var coreId = req.params.id;
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console.log("POST /core/edit/" + coreId + "body: " + JSON.stringify(req.body) + ", " + JSON.stringify(d, 4));
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if (!req.body) {
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return res.sendStatus(400);
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} else {
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// check existence of row in Cores table, if there update, otherwise insert.
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var existQry = "SELECT coreId FROM Cores WHERE coreId = ?;"
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db.get(existQry, coreId, function(err, row){
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if(err) throw err;
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console.log(typeof row);
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console.log(row);
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if(typeof row == "undefined") {
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var insStmt = db.prepare("INSERT INTO Cores (coreId, coreName, locationDesc) VALUES (?, ?, ?);");
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insStmt.run(
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coreId,
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req.body.deviceName,
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req.body.locationDesc
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);
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insStmt.finalize();
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} else {
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if (req.body.deviceName !== "") {
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var stmt = db.prepare("UPDATE Cores SET coreName = ? WHERE coreId = ?");
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stmt.run(
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req.body.deviceName,
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coreId
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);
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stmt.finalize();
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}
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if (req.body.locationDesc !== "") {
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var stmt = db.prepare("UPDATE Cores SET locationDesc = ? WHERE coreId = ?");
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stmt.run(
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req.body.locationDesc,
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coreId
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);
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stmt.finalize();
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}
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}
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});
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res.redirect('https://particle.kaplon.us/');
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}
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});
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app.get('/core/:id', function(req, res){
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//res.sendFile("/usr/src/app/index.html");
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//fs.createReadStream('./log.log').pipe(res);
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var d = new Date();
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var coreId = req.params.id;
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console.log("GET /core/" + coreId + ", " + JSON.stringify(d, 4));
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var coreMsgQry = "SELECT al.coreId, al.published_at, al.status, co.coreName " +
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"FROM Alerts al left join Cores co on al.coreId = co.coreId " +
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"WHERE al.coreId = ? ORDER BY al.published_at DESC LIMIT 30;"
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db.all(coreMsgQry, coreId, function(err, rows){
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if(err !== null) {
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console.log(err);
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} else {
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//console.log("SELECT coreId, published_at FROM Alerts WHERE coreId = '" + coreId + "' ORDER BY published_at DESC LIMIT 30;");
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//console.log(rows);
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// Loop over elements in rows array, convert ugly UTC times to pretty local times.
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rows.forEach(function(row){
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row.pubDate = alertmonUtils.getLocDateFromUTC(row.published_at);
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row.pubTime = alertmonUtils.getLocTimeFromUTC(row.published_at);
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if(row.status.toLowerCase().indexOf('alert') > -1){
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row.isAlert = 1;
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}
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});
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res.render('core', {alerts: rows}, function(err, html) {
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res.send(html);
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});
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}
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});
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});
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app.post('/', function(req, res){
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var postEvent = req.body.postEvent;
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var source = req.body.source;
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console.log(req.body);
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var innerDataJSON = JSON.parse(req.body.data);
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var status = JSON.stringify(innerDataJSON.status, null, 4).slice(1,-1);
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var coreid = JSON.stringify(req.body.coreid, null, 4).slice(1,-1);
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var pubAt = JSON.stringify(req.body.published_at, null, 4).slice(1,-1);
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var stmt = db.prepare("INSERT INTO Alerts (OrigJSON, coreid, published_at, status) VALUES (?, ?, ?, ?)");
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stmt.run(
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JSON.stringify(req.body, null, 4),
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coreid,
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pubAt,
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status
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);
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stmt.finalize();
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// Send emails on alerts only
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if(status.toLowerCase().indexOf('alert') > -1){
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mailOptions.text = 'An alert message was received: \n\n';
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mailOptions.text = mailOptions.text + 'Status message, ' + status + '\n';
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mailOptions.text = mailOptions.text + 'Published at, ' + alertmonUtils.getLocDateFromUTC(pubAt) + ' ' + alertmonUtils.getLocTimeFromUTC(pubAt) + '\n';
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//mailOptions.text = mailOptions.text + 'From device, ' + alertmonUtils.getCoreNameFromCoreId(db, coreid) + '\n';
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var nameQry = 'SELECT coreName FROM Cores WHERE coreId = ?;'
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db.get(nameQry, coreid, function(err, row){
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if ((err) || (typeof row == undefined)) {
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// Don't care about this error or empty result set, still need to send email.
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row.coreName = '# No Name #';
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}
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mailOptions.text = mailOptions.text + 'From device, ' + row.coreName + '\n';
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transporter.sendMail(mailOptions, function(error, info){
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if(error){
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console.log(error);
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}else{
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console.log('Message sent: ' + info.response);
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}
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});
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});
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}
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//res.send(JSON.stringify(req.body, null, 4));
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});
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app.listen(3000, function() {
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console.log("Started on PORT 3000");
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})
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