imad-app/server.js at master · blockmind4k/imad-app · GitHub

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var express = require('express');
var morgan = require('morgan');
var path = require('path');
var Pool = require('pg').Pool;
var crypto = require('crypto')

var config = {
    user: 'sganesha75',
    database: 'sganesha75',
    host: 'db.imad.hasura-app.io',
    port: '5432',
    password: process.env.DB_PASSWORD
};
var app = express();
app.use(morgan('combined'));


var pool = new Pool(config);
app.get('/', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'index.html'));
});

app.get('/test-db', function (req, res){
    //make a select request
    //return a response with the results
    pool.query('SELECT * FROM test', function (err, result){
        if (err) {
         res.status(500).send(err.toString());
        }else{
            res.send(JSON.stringify(result.rows));
        }
    });
});

function createTemplate (data) {
    var title = data.title;
    var date = data.date;
    var heading = data.heading;
    var content = data.content;

    var htmlTemplate =`
<html>

    <head>

        <title>
           ${title}
        </title>
        <meta name="veiwport" content="width=device-width, initial-scale=1"/>
        <link href="/ui/style.css" rel="stylesheet" />
         </head>
    <body>
        <div class="container">
        <div>
            <a href="/">Home</a>
        </div>
        <hr/>
        <h3>
            ${heading}
        </h3>
        <div>
           ${date.toDateString()}
        </div>
        <div>
            ${content}
        </div>
        </div>
    </body>
`;
    return htmlTemplate;
}


function hash (input, salt) {
    //How do we create a hash
    var hashed = crypto.pbkdf2Sync(input, salt, 100000, 512, 'sha512');
    return ["pbkdf2", "10000", salt, hashed.toString('hex')].join('$');

}
app.get('/hash/:input', function(req,res){
    var hashedString = hash(req.params.input, 'this-is-some-random-string');
    res.send(hashedString);
});


var counter = 0;
app.get('/counter', function (req,res){
    counter = counter + 1;
    res.send(counter.toString());

});

var names = [];
app.get('/submit-name', function(req,res) {//URL: submit-name?name=xxxxxxx
 //Get the name from the request
 var name = req.query.name;

 names.push(name);
 //JSON: Javascript Object Notation!

 res.send(JSON.stringify(names));
});

app.get('/articles/:articleName', function(req,res){
    //article-one === article-one
    //articles[articleName] === {} content object for article-one

    //SELCT * FROM article WHERE title = 'article-one'
    pool.query("SELECT * FROM article WHERE title =$1", [req.params.articleName], function (err,result){
        if (err){
            res.status(500).send(err.toString());
        }else{
            if (result.rows.length === 0){
                res.status(404).send('Article not found');
            }else{
                var articleData = result.rows[0];
                res.send(createTemplate(articleData));
            }
        }
    });
});

app.get('/ui/style.css', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'style.css'));
});

app.get('/ui/main.js', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'main.js'));
});


app.get('/ui/madi.png', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'madi.png'));
});


// Do not change port, otherwise your app won't run on IMAD servers
// Use 8080 only for local development if you already have apache running on 80

var port = 80;
app.listen(port, function () {
  console.log(`IMAD course app listening on port ${port}!`);
});