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@sreebhattacharyya
sreebhattacharyya authored Nov 12, 2019
1 parent e4eaa69 commit 1aea16d
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17 changes: 17 additions & 0 deletions connect.php
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<?php
$link = mysqli_connect("localhost","root","","login");
if ($link==false)
{
die("ERROR: Could not connect.".mysqli_connect_error());
}

?>
</body>
</html>
145 changes: 145 additions & 0 deletions index.php
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<?php
require_once 'connect.php';




$uname = $pw = $confirm_pw = "";
$uname_err = $pw_err = $confirm_pw_err = "";


if($_SERVER["REQUEST_METHOD"] == "POST"){


if(empty(trim($_POST["username"]))){
$uname_err = "Please enter a username.";
} else{

$sql = "SELECT id FROM users WHERE username = ?";

if($stmt = mysqli_prepare($link, $sql)){

mysqli_stmt_bind_param($stmt, "s", $param_username);


$param_username = trim($_POST["username"]);


if(mysqli_stmt_execute($stmt)){

mysqli_stmt_store_result($stmt);

if(mysqli_stmt_num_rows($stmt) == 1){
$uname_err = "This username is already taken.";
} else{
$uname = trim($_POST["username"]);
}
} else{
echo "Oops! Something went wrong. Please try again later.";
}
}


mysqli_stmt_close($stmt);
}


if(empty(trim($_POST["password"]))){
$pw_err = "Please enter a password.";
} elseif(strlen(trim($_POST["password"])) < 6){
$pw_err = "Password must have atleast 6 characters.";
} else{
$pw = trim($_POST["password"]);
}

if(empty(trim($_POST["confirm_password"]))){
$confirm_pw_err = "Please confirm password.";
}
else{
$confirm_pw = trim($_POST["confirm_password"]);
if(empty($pw_err) && ($pw != $confirm_pw)){
$confirm_pw_err = "Password did not match.";
}
}


if(empty($uname_err) && empty($pw_err) && empty($confirm_pw_err)){


$sql = "INSERT INTO users (username, password) VALUES (?, ?)";

if($stmt = mysqli_prepare($link, $sql)){

mysqli_stmt_bind_param($stmt, "ss", $param_username, $param_password);

$param_username = $uname;
$param_password = password_hash($pw, PASSWORD_DEFAULT);

if(mysqli_stmt_execute($stmt)){

header("location: login.php");
} else{
echo "Something went wrong. Please try again later.";
}
}
mysqli_stmt_close($stmt);
}

mysqli_close($link);
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Sign Up</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.css">
<style type="text/css">

body{ font: 14px sans-serif; }
h2 {background-color:powderblue; color: grey;}
.wrapper{ width: 350px; padding: 20px; }
</style>
</head>
<body>
<div class="wrapper">
<h2>Sign Up to <b>SHIKSHA</b></h2>
<p>Please fill this form to create an account.</p>
<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post">
<div class="form-group <?php echo (!empty($uname_err)) ? 'has-error' : ''; ?>">
<label>Username</label>
<input type="text" name="username" class="form-control" value="<?php echo $uname; ?>">
<span class="help-block"><?php echo $uname_err; ?></span>
</div>
<div class="form-group <?php echo (!empty($pw_err)) ? 'has-error' : ''; ?>">
<label>Password</label>
<input type="password" name="password" class="form-control" value="<?php echo $pw; ?>">
<span class="help-block"><?php echo $pw_err; ?></span>
</div>
<div class="form-group <?php echo (!empty($confirm_pw_err)) ? 'has-error' : ''; ?>">
<label>Confirm Password</label>
<input type="password" name="confirm_password" class="form-control" value="<?php echo $confirm_pw; ?>">
<span class="help-block"><?php echo $confirm_pw_err; ?></span>
</div>
<div class="form-group">
<input type="submit" class="btn btn-primary" value="Submit">
<input type="reset" class="btn btn-default" value="Reset">
</div>
<p>Already have an account? <a href="login.php">Login here</a>.</p>
</form>
</div>
</body>
</html>





180 changes: 180 additions & 0 deletions login.php
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<?php
session_start();

require_once "connect.php";

$username=$password="";
$username_error=$password_error="";

if($_SERVER["REQUEST_METHOD"]=="POST")
{
if(empty(trim($_POST["username"])))
{
$username_error="Please enter a username";
}
else
{
$username=trim($_POST["username"]);
}
if(empty(trim($_POST["password"])))
{
$password_error="Please enter a password";
}
else
{
$password=trim($_POST["password"]);
}
if(empty($username_error) && empty($password_error))
{
$sql="SELECT id , username , password FROM users WHERE username = ?";
if($stmt = mysqli_prepare($link, $sql))
{
mysqli_stmt_bind_param($stmt, "s", $param_username);


$param_username = $username;


if(mysqli_stmt_execute($stmt))
{
mysqli_stmt_store_result($stmt);

if(mysqli_stmt_num_rows($stmt) == 1)
{

mysqli_stmt_bind_result($stmt, $id, $username, $hashed_password);
if(mysqli_stmt_fetch($stmt))
{
if(password_verify($password, $hashed_password))
{
session_start();
$_SESSION["loggedin"] = true;
$_SESSION["id"] = $id;
$_SESSION["username"] = $username;
header ("location: homepage.php");
}
else
{
//displaying error message
$password_error= "Password entered is not valid.";
}
}
else
{
$username_error="Username entered does not have an account.";
}
}
else
{
echo "Something went wrong. Try again later.";
}
}
mysqli_stmt_close($stmt);
}
mysqli_close($link);
}

?>
<!DOCTYPE html>
<html>
<head>
<title>New Site</title>
<style>
body
{
background-color:lightgray;
margin: 0;
margin-top: 50px;
}
header
{
font-family:"Sans Serif","Times New Roman";
font-size:40px;
color:RGB(60,60,60);
display:flex;
position:fixed;
align-items:center;
text-align:center;
top:0;
left:0;
right:0;
height:100px;
line-height:100px;
background-color:powderblue;
border-style:outset;
border-color:teal;
}
h1
{
margin: 5px 480px 5px;
}
input[type=text], input[type=password]
{

padding: 12px 20px;
margin: 8px 0;
display: inline-block;
border: 1px solid #ccc;
box-sizing: border-box;
}
button
{
background-color: #4CAF50;
color: white;
padding: 14px 20px;
margin: 8px 0;
border: none;
cursor: pointer;
}
button:hover
{
opacity: 0.8;
}
label
{
font-size:15px;
}
form
{
font-family:"Sans Serif","Times New Roman";
font-size:25px;
line-height:1.8;
margin-top:200px;
justify-content: center;
align-items:center;
text-align:center;
}


</style>
</head>
<body>

<header>
<h1><b>SHIKSHA</b></h1>
</header>

<main>
<section id="login">
<form method="POST" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
Login:<br>
Username:<br>
<input type="text" name="username" placeholder="Enter Username" class="form-control" required><br>
<span class="error"><?php echo $username_error; ?></span><br>
Password:<br>
<input type="password" name="password" placeholder="Enter Password" required><br>
<span class="error"><?php echo $password_error; ?></span><br>
<button type="submit">Login</button><br>
<label>
<input type="checkbox" checked="checked" name="remember"> Remember me
</label>
<p>Don't have an account? <a href='Register.php'>Sign up now!</a></p>
</form>
</section>
</body>
</html>





49 changes: 49 additions & 0 deletions login.sql
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-- phpMyAdmin SQL Dump
-- version 4.9.1
-- https://www.phpmyadmin.net/
--
-- Host: 127.0.0.1
-- Generation Time: Nov 12, 2019 at 10:04 AM
-- Server version: 10.4.8-MariaDB
-- PHP Version: 7.3.11

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET AUTOCOMMIT = 0;
START TRANSACTION;
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;

--
-- Database: `login`
--

-- --------------------------------------------------------

--
-- Table structure for table `users`
--

CREATE TABLE `users` (
`id` int(10) NOT NULL,
`username` varchar(25) NOT NULL,
`password` varchar(25) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

--
-- Dumping data for table `users`
--

INSERT INTO `users` (`id`, `username`, `password`) VALUES
(0, 'sreebhattacharyya', '$2y$10$zNrFhrajJbmhZ6.OyN'),
(0, 'susmita123', '$2y$10$sYl0d9SOd1LpQ4sYCo'),
(0, 'sub123', '$2y$10$p2PwjaP53zxVUEJJfy');
COMMIT;

/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

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