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index.php
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index.php
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<?php
session_start();
include_once('dbcon.php');
$errorlogin = false;
if(isset($_POST['btn-login']))
{
$email = trim($_POST['email']);
$email = htmlspecialchars(strip_tags($email));
$password = trim($_POST['password']);
$password = htmlspecialchars(strip_tags($password));
if(empty($email))
{
$errorlogin = true;
$errorloginEmail = 'Please enter a valid email';
$errorloginMsg = 'Invalid Email or Password';
}
elseif(!filter_var($email, FILTER_VALIDATE_EMAIL))
{
$errorlogin = true;
$errorloginEmail = 'Please enter a valid email address';
$errorloginMsg = 'Invalid Email or Password';
}
if(empty($password)){
$errorlogin = true;
$errorloginPassword = 'Please enter password';
$errorloginMsg = 'Invalid Email or Password';
}
elseif((strlen($password)< 6) || (strlen($password)>10))
{
$errorlogin = true;
$errorloginPassword = 'Password not of valid length';
$errorloginMsg = 'Invalid Email or Password';
}
if(!$errorlogin)
{
$sql = "select * from userstable where email='$email' ";
$result = mysqli_query($conn, $sql);
$count = mysqli_num_rows($result);
$row = mysqli_fetch_assoc($result);
if($count==1 && $row['password'] == $password)
{
$_SESSION['username'] = $row['username'];
header('location: home.php');
}else
{
$errorloginMsg = 'Invalid Email or Password';
}
}
}
$error = false;
if(isset($_POST['btn-register']))
{
$gender = $_POST['gender'];
$username = $_POST['registerusername'];
$username = strip_tags($username);
$username = htmlspecialchars($username);
$email = $_POST['registeremail'];
$email = strip_tags($email);
$email = htmlspecialchars($email);
$password = $_POST['registerpassword'];
$password = strip_tags($password);
$password = htmlspecialchars($password);
//validate
//---------------------------------------------------------------------------------------------
//----------------------------Username field must be provided and be within limit--------------
if(empty($username)){
$error = true;
$errorUsername = 'Please input username';
$regMsg = 'Registration unsuccessful';
}elseif(strlen($username) < 6){
$error = true;
$errorUsername = 'Username must be at least 6 characters';
$regMsg = 'Registration unsuccessful';
}
elseif(strlen($username) > 20){
$error = true;
$errorUsername = 'Username must be at most 20 characters';
$regMsg = 'Registration unsuccessful';
}
//----------------------------Username field must be unique------------------------------------
$sql = "select * from userstable where username='$username' ";
$result = mysqli_query($conn, $sql);
$count = mysqli_num_rows($result);
$row = mysqli_fetch_assoc($result);
if($count>=1)
{
$error = true;
$errorUsername = 'Username already exists; Please enter another one.';
$regMsg = 'Registration unsuccessful';
}
//---------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------
//---------------------Valid email must be provided -------------------------------------------
if(!filter_var($email, FILTER_VALIDATE_EMAIL)){
$error = true;
$errorEmail = 'Please enter a valid email';
$regMsg = 'Registration unsuccessful';
}
/*
else
{
if(strlen($email) > 254){
$error = true;
$errorEmail = 'Input email is of invalid length';
$regMsg = 'Registration unsuccessful';
}
}
*/
//-----------------------------------Email must be unique---------------------------------------
$sql = "select * from userstable where email='$email' ";
$result = mysqli_query($conn, $sql);
$count = mysqli_num_rows($result);
$row = mysqli_fetch_assoc($result);
if($count>=1)
{
$error = true;
$errorEmail = 'Email already exists; Please enter another one.';
$regMsg = 'Registration unsuccessful';
}
//---------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------
//----------------------------Password field must be provided and be within limit--------------
if(empty($password)){
$error = true;
$errorPassword = 'Please input password';
$regMsg = 'Registration unsuccessful';
}elseif(strlen($password) < 6){
$error = true;
$errorPassword = 'Password must be at least 6 characters';
$regMsg = 'Registration unsuccessful';
}
elseif(strlen($password) > 10){
$error = true;
$errorPassword = 'Password must be at most 10 characters';
$regMsg = 'Registration unsuccessful';
}
//----------------------------Password field must be unique------------------------------------
$sql = "select * from userstable where password='$password' ";
$result = mysqli_query($conn, $sql);
$count = mysqli_num_rows($result);
$row = mysqli_fetch_assoc($result);
if($count>=1)
{
$error = true;
$errorPassword = 'Password already exists; Please enter another one.';
$regMsg = 'Registration unsuccessful';
}
//---------------------------------------------------------------------------------------------
if(!$error){
$sql = "insert into userstable(gender, username, email ,password) values('$gender', '$username', '$email', '$password')";
if(mysqli_query($conn, $sql))
{
$regSuccessfulMsg = 'Registered successfully. You can now log in';
}
else{
echo 'Error '.mysqli_error($conn);
}
}
}
?>
<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!DOCTYPE html>
<html lang="en">
<title>Sports Corner</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<head>
<script src="jquery/jquery.min.js"></script>
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="style.css">
<script src="js/bootstrap.min.js"></script>
<link rel="icon" href="images/icon.png" type="image/x-icon" />
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet">
</head>
<body>
<div class="container-fluid">
<div class="container">
<h2 class="text-center" id="title">
<BR>
Sports Corner
</h2>
<hr>
<div class="row">
<div class="col-md-5">
<form role="form" method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" autocomplete="off">
<?php
if(isset($regMsg))
{
?>
<div class="alert alert-success">
<p id="regunsuccessfulmsg" class="glyphicon glyphicon-info-sign">Registration unsuccessful</p>
</div>
<?php
}
?>
<?php
if(isset($regSuccessfulMsg))
{
?>
<div class="alert alert-success">
<p id="regsuccessfulmsg" class="glyphicon glyphicon-info-sign">Registration successful</p>
</div>
<?php
}
?>
<fieldset>
<p class="text-uppercase pull-center" ><STRONG>
<span id="signuptext">Register User</span>
</STRONG> </p>
<p class="text-lowercase" id="regrequiredtext" style="font-style: italic;">
(<span style="color: red">*</span> marked fields are must)
</p>
<div class="form-group">
<label for="username" class="control-label">Username <span style="color: red">*</span></label>
<input type="text" name="registerusername" id="registerusername" class="form-control"
placeholder="Enter username of length between 6 and 20" value="">
<span class="text-danger"><?php if(isset($errorUsername)) echo $errorUsername; ?></span>
</div>
<div class="form-group">
<label for="email" class="control-label">Email <span style="color: red">*</span></label>
<input type="email" name="registeremail" id="registeremail" class="form-control" autocomplete="off"
placeholder="Enter email address" value="">
<span class="text-danger"><?php if(isset($errorEmail)) echo $errorEmail; ?></span>
</div>
<div class="form-group">
<label for="password" class="control-label">Password <span style="color: red">*</span></label>
<input type="password" id="registerpassword" name="registerpassword" class="form-control" autocomplete="off"
placeholder="Enter password of length between 6 and 10" value="">
<span class="text-danger"><?php if(isset($errorPassword)) echo $errorPassword; ?></span>
</div>
<div class="radio">
<label for="gender" class="control-label">Gender <span style="color: red">*</span></label> <br>
<input type="radio" id="male" name="gender" class="radio" value="Male" checked> <label for="male">Male</label>    
<input type="radio" id="female" name="gender" class="radio" value="Female"> <label for="female">Female</label>    
<input type="radio" id="other" name="gender" class="radio" value="Other"> <label for="other">Other</label>
<span class="text-danger"><?php if(isset($errorGender)) echo $errorGender; ?></span>
<br>
</div>
<div>
<br>
<input type="submit" name="btn-register" class="btn btn-lg btn-primary" id="btn-register" value="Register">
</div>
</fieldset>
</form>
</div>
<div class="col-md-2">
</div>
<div class="col-md-5">
<form role="form" method="post" action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']); ?>" autocomplete="off">
<?php
if(isset($errorloginMsg))
{
?>
<div class="alert alert-success">
<p id="loginunsuccessfulmsg" class="glyphicon glyphicon-info-sign">Log In unsuccessful</p>
</div>
<?php
}
?>
<fieldset>
<p class="text-uppercase" id="logintext"> <STRONG>Log In</STRONG></p>
<p class="text-lowercase" id="loginrequiredtext" style="font-style: italic;">
(<span style="color: red">*</span> marked fields are must)
</p>
<div class="form-group">
<label for="email" class="control-label">Email <span style="color: red">*</span> </label>
<input type="email" name="email" id="loginemail" class="form-control" autocomplete="off"
placeholder="Enter email address" value="">
<!--
<span class="text-danger"><?php if(isset($errorloginEmail)) echo $errorloginEmail; ?></span>
-->
</div>
<div class="form-group">
<label for="password" class="control-label">Password <span style="color: red">*</span></label>
<input type="password" name="password" id="loginpassword" class="form-control" autocomplete="off"
placeholder="Enter password" value="">
<!--
<span class="text-danger"><?php if(isset($errorloginPassword)) echo $errorloginPassword; ?></span>
-->
</div>
<!--
Individual messages are not shown for each field when loggin in,
so that an attacker cannot get information why successful log in did not occur
-->
<div>
<input type="submit" name="btn-login" id="btn-login" value="Login" class="btn btn-primary">
</div>
</fieldset>
</form>
</div>
</div>
</div>
<p class="text-center" id="paraabout">
<br>
<p style="text-align: center; font-style: italic">
By, Md. Siam Ansary
<span style="font-style: italic;">
<a href="mailto:siamansary.cse@gmail.com">
(siamansary.cse@gmail.com)
</a>
</span>
</p>
</p>
</div>
</body>
</html>