Untitled

var http = require('http');
var fs = require('fs');
var url = require('url');
var express = require('express');
var app = express();
var session = require('express-session');
app.use(express.static('phase1'));
app.use(session({
    secret: 'Security',
    resave: true,
    saveUninitialized: false
}));

var bodyParser = require('body-parser');
app.use(bodyParser.json()); // to support JSON-encoded bodies
app.use(bodyParser.urlencoded({ // to support URL-encoded bodies
    extended: true
}));

var file_content = fs.readFileSync(__dirname + '/users.json');

var users = JSON.parse(file_content);

app.post('/register', function (req, res) {
    //To get the data sent in a post request , you just enter //req.body.<name of the input you want it’s value>
    if (req.session.email) {
        res.redirect("/Project_phase1");
    }
    var sentEmail = req.body.regmail; // sets sentEmail value to
    var sentName = req.body.regname;
    var sentpass = req.body.regpassword;
    while (!validateName(sentName) || !validatePassword(sentpass) || ifMailIsTaken(sentEmail) || !validateEmail(sentEmail)) {
        if (!validateName(sentName)) {
            res.writeHead(200, {
                "Content-Type": "text/html"
            });
            res.write(
                "<!DOCTYPE html>" +
                "<html lang='en' dir='ltr'>" +
                "<head>" +
                "<met charset='utf-8'>" +
                "<title>Wrong name</title>" +
                "</head>" +
                "<body>" +
                "<script type='text/javascript'>alert('Wrong name')</script>" +
                "</body>" +
                "</html>");
            res.end();
            sentName = req.body.regname;
        }
        if (!validatePassword(sentpass)) {
            res.writeHead(200, {
                "Content-Type": "text/html"
            });
            res.write(
                "<!DOCTYPE html>" +
                "<html lang='en' dir='ltr'>" +
                "<head>" +
                "<met charset='utf-8'>" +
                "<title>Wrong password</title>" +
                "</head>" +
                "<body>" +
                "<script type='text/javascript'>alert('password length shoulb be >= 5')</script>" +
                "</body>" +
                "</html>");
            res.end();
            sentpass = req.body.regpassword;
        }
        if (ifMailIsTaken(sentEmail) || !validateEmail(sentEmail)) {
            res.writeHead(200, {
                "Content-Type": "text/html"
            });
            res.write(
                "<!DOCTYPE html>" +
                "<html lang='en' dir='ltr'>" +
                "<head>" +
                "<met charset='utf-8'>" +
                "<title>Choose another mail</title>" +
                "</head>" +
                "<body>" +
                "<script type='text/javascript'>alert('The mail is taken or wrong formula ,,, choose another one')</script>" +
                "</body>" +
                "</html>");
            res.end();
            sentEmail = req.body.regmail;
        }
    }
    var newUser = {
        "email": sentEmail,
        "Name": sentName,
        "password": sentpass,
        "Completed": [],
        "Archived": [],
        "InProgress": [],
        "AllTasks": []
    };
    users.push(newUser);
    fs.writeFileSync(__dirname + '/users.json', JSON.stringify(users, null, 5));
    res.redirect("/login");
});

app.get('/register', function (req, res) {
    if (req.session.email) {
        res.redirect("/Project_phase1");
    }
    res.sendFile(__dirname + "/" + "register.html");
});

app.post('/login', function (req, res) {
    if (req.session.email) {
        res.redirect("/Project_phase1");
    }
    var currEmail = req.body.mail; // sets sentEmail value to
    var currPass = req.body.password;
    while (users.length == 0 || !checkLoginMail(currEmail)) {
        res.writeHead(200, {
            "Content-Type": "text/html"
        });
        res.write(
            "<!DOCTYPE html>" +
            "<html lang='en' dir='ltr'>" +
            "<head>" +
            "<met charset='utf-8'>" +
            "<title>Invalid mail</title>" +
            "</head>" +
            "<body>" +
            "<script type='text/javascript'>alert('Invalid mail')</script>" +
            "</body>" +
            "</html>");
        res.end();
        currEmail = req.body.mail;
    }
    var index = getIndexLogin(currEmail);
    var rightPass = users[index].password;
    while (rightPass != currPass) {
        res.writeHead(200, {
            "Content-Type": "text/html"
        });
        res.write(
            "<!DOCTYPE html>" +
            "<html lang='en' dir='ltr'>" +
            "<head>" +
            "<met charset='utf-8'>" +
            "<title>Invalid password</title>" +
            "</head>" +
            "<body>" +
            "<script type='text/javascript'>alert('Invalid password')</script>" +
            "</body>" +
            "</html>");
        res.end();
        currPass = req.body.password;
    }
    req.session.email = users[index].email;
    res.redirect("/Project_phase1");
});
app.get('/login', function (req, res) {
    if (req.session.email) {
        res.redirect("/Project_phase1");
    }
    res.sendFile(__dirname + "/" + "login.html");
});

app.get('/Project_phase1', function (req, res) {
    res.sendFile(__dirname + "/" + "Project_phase1.html");
});

app.post('/update', function (req) {
    file_content = fs.readFileSync(__dirname + '/users.json');
    users = JSON.parse(file_content);
    var index = getIndexLogin(req.session.email);
    if (req.body.Completed)
        users[index].Completed = req.body.Completed;
    if (req.body.Archived)
        users[index].Archived = req.body.Archived;
    if (req.body.InProgress)
        users[index].InProgress = req.body.InProgress;
    if (req.body.AllTasks)
        users[index].AllTasks = req.body.AllTasks;
    fs.writeFileSync(__dirname + '/users.json', JSON.stringify(users, null, 5));
});

app.get('/readArray', function (req, res) {
    file_content = fs.readFileSync(__dirname + '/users.json');
    users = JSON.parse(file_content);
    var index = getIndexLogin(req.session.email);
    res.send(users[index]);
    res.end();
});

app.post('/temp', function (req, res) {
    req.session.destroy();
    res.redirect('/login');
});

function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
}

function validatePassword(password) {
    return password.length >= 5;
}

function validateName(name) {
    if (name.length == 0) {
        return false;
    }
    var i = 0;
    for (; i < name.length; i++) {
        if (name[i] < 'a' && name[i] > 'z' && name[i] < 'A' && name[i] > 'Z') {
            return false;
        }
    }
    return true;
}

function ifMailIsTaken(currEmail) {
    var i = 0;
    for (; i < users.length; i++) {
        if (users[i].email == currEmail) {
            return true;
        }
    }
    return false;
}

function checkLoginMail(temp) {
    for (var i = 0; i < users.length; i++) {
        if (temp == users[i].email) {
            return true;
        }
    }
    console.log("new error");
    return false;
}

function getIndexLogin(temp) {
    for (var i = 0; i < users.length; i++) {
        if (temp == users[i].email) {
            return i;
        }
    }
}