1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
<?php
// Initialize the session
session_start();
// Check if the user is already logged in, if yes then redirect him to welcome page
if (isset($_SESSION["loggedin"]) && $_SESSION["loggedin"] === true) {
header("location: /".$_SESSION["type"].".php");
exit;
}
// Include config file
require_once "config.php";
// Define variables and initialize with empty values
$username = $password = "";
$username_err = $password_err = "";
// Processing form data when form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// Validate username
if (empty($_POST["username"]))
$username_err = "Enter a username.";
else if (preg_match("/[a-zA-Z0-9_]+/", $_POST["username"]) != 1)
$username_err = "Invalid username.";
else
$username = $_POST["username"];
// Validate password
if (empty($_POST["password"]))
$password_err = "Enter a password.";
else if (strlen($_POST["password"]) < 8)
$password_err = "Password must have at least 8 characters.";
else if (preg_match("/[a-zA-Z0-9!@^*$%&)(=+çñÇ][}{\-.,_:;]+/", $_POST["password"]) != false)
$password_err = "Password must be in the format [a-zA-Z0-9!@^*$%&)(=+çñÇ][}{-.,_:;].";
else
$password = $_POST["password"];
// Validate credentials
if (empty($username_err) && empty($password_err)) {
// Prepare a select statement
$sql = "SELECT id, username, password, status, type FROM users WHERE username = ?";
if ($stmt = mysqli_prepare($link, $sql)) {
// Bind variables to the prepared statement as parameters
mysqli_stmt_bind_param($stmt, "s", $param_username);
// Set parameters
$param_username = $username;
// Attempt to execute the prepared statement
if (mysqli_stmt_execute($stmt)){
// Store result
mysqli_stmt_store_result($stmt);
// Check if username exists, if yes then verify password
if (mysqli_stmt_num_rows($stmt) == 1) {
// Bind result variables
mysqli_stmt_bind_result($stmt, $id, $username, $hashed_password, $status, $type);
if (mysqli_stmt_fetch($stmt)){
if (password_verify($password, $hashed_password)) {
// Password is correct, check verification
if ($status == "verified") {
session_start();
// Store data in session variables
$_SESSION["loggedin"] = true;
$_SESSION["id"] = $id;
$_SESSION["username"] = $username;
$_SESSION["type"] = $type;
// Redirect user to appropiate page
header("location: /".$type.".php");
} else {
$username_err = "Unverified account, check your email.";
}
} else {
$password_err = "Incorrect password.";
}
}
} else{
// Display an error message if username doesn't exist
$username_err = "No account found with that username.";
}
} else{
echo "Oops! Something went wrong. Please try again later.";
}
// Close statement
mysqli_stmt_close($stmt);
}
}
// Close connection
mysqli_close($link);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSTIMS Login</title>
<link rel="stylesheet" type="text/css" href="/style.css">
</head>
<body>
<header><a href="https://arf20.com/">
<img src="arfnet_logo.png" width="64"><span class="title"><strong>ARFNET</strong></span>
</a></header>
<hr>
<main>
<div class="wrapper">
<h2>CSTIMS Login</h2>
<form action="/login.php" method="post">
<div class="form-group row <?php echo (!empty($username_err)) ? 'has-error' : ''; ?>">
<div class="column"><label>Username</label></div>
<div class="column"><input type="text" name="username" class="form-control" pattern="[a-zA-Z0-9_]+" value="<?php echo $username; ?>"></div>
<span class="help-block"><?php echo $username_err; ?></span>
</div>
<div class="form-group row <?php echo (!empty($password_err)) ? 'has-error' : ''; ?>">
<div class="column"><label>Password</label></div>
<div class="column"><input type="password" name="password" pattern="[a-zA-Z0-9_]+" class="form-control"></div>
<span class="help-block"><?php echo $password_err; ?></span>
</div>
<div class="form-group">
<input type="submit" class="btn btn-primary" value="Login">
</div>
<p>Don't have an account? <a href="register.php">Sign up now</a>.</p>
</form>
</div>
</main>
</body>
</html>
|
