WebNotices/student_signup.php at master · devansh5398/WebNotices · GitHub

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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
<?php
  session_start();
  if(isset($_SESSION['username']) && !isset($_SESSION['code']))
    echo "<script>location.replace('home.php');</script>";
?>

<!DOCTYPE html>
<html lang="en">

  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://fonts.googleapis.com/css?family=Caveat&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>

    <?php include 'authenticate.php'; ?>
    <?php
        $firstname = $lastname = $username = $password = $email = "";
        $firsterr = $lasterr = $usererr = $passerr = $confirmerr = $emailerr = "";
        $message = $code = $otp = $otperr = "";
        $form1_time = $form2_time = 0;

        if(empty($_POST['next2']))
          echo "<script>
                  $(document).ready(function() {
                    $('.sign_up').addClass('show');
                    $('.verification').removeClass('show');
                  });
                </script>";

        $js1 = "<script></script>";

      if($_SERVER["REQUEST_METHOD"] == 'POST') {
        if(!empty($_POST['next1'])) {
          $form1_time = time();

          echo "<script>
                  $(document).ready(function() {
                    $('.sign_up').addClass('show');
                    $('.verification').removeClass('show');
                  });
                </script>";

          if(empty($_POST['firstname']))
            $firsterr = "Enter first name.";
          else {
            $firstname = testIt($_POST['firstname']);
            if (!preg_match("/^[a-zA-Z]*$/", $firstname))
              $firsterr = "Sorry, only letters (a-z) are allowed.";
          }

          $lastname = testIt($_POST['lastname']);
          if (!preg_match("/^[a-zA-Z]*$/", $lastname))
            $lasterr = "Sorry, only letters (a-z) are allowed.";

          if(empty($_POST['username']))
            $usererr = "Choose a username.";
          else {
            $username = testIt($_POST['username']);
            $sql = "SELECT * FROM users WHERE USERNAME = '$username'";
            $result = mysqli_query($conn, $sql);

            if (!preg_match("/^[a-zA-Z0-9_.\-]*$/", $username))
              $usererr = "Sorry, only letters (a-z), numbers (0-9) and special characters (. _ -) are allowed.";
            else if($username[0]=='_' || $username[0]=='.' || $username[0]=='-' )
              $usererr = "Sorry, first character of your username must be an ascii letter(a-z) or number (0-9).";
            elseif(mysqli_num_rows($result) > 0)
              $usererr = "Sorry, an account already exists with this username.";
          }

          if(empty($_POST['password']))
            $passerr = "Enter a password.";
          else {
            $password = $copy = $_POST['password'];
            $password = trim($password);
            $confirm = $_POST['confirm'];

            if($password !== $copy)
              $passerr = "Your password can't start or end with a blank space.";
            else if(strlen($password) < 8)
              $passerr = "Use 8 characters or more for your password.";
            else if(strlen($password) > 30)
              $passerr = "Use 30 characters or fewer for your password.";
            else if(empty($confirm))
              $confirmerr = "Confirm your password.";
            else if($password !== $confirm)
              $confirmerr = "Passwords didn't match. Please try again.";
            else
              $password = md5(htmlspecialchars($password));
          }

          if(empty($_POST['email']))
            $emailerr = "Enter an email.";
          else {
            $email = testIt($_POST['email']);
            $sql = "SELECT * FROM users WHERE EMAIL = '$email'";
            $result = mysqli_query($conn, $sql);

            if (!empty($email) && !filter_var($email, FILTER_VALIDATE_EMAIL))
              $emailerr = "Sorry, your email is not valid.";
            elseif (mysqli_num_rows($result) > 0)
              $emailerr = "Sorry, an account already exists with this email.";
          }

          if(empty($firsterr) && empty($lasterr) && empty($usererr) && empty($passerr) && empty($confirmerr) && empty($emailerr)) {
            $permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@#$%&=?';
            $code = substr(str_shuffle($permitted_chars),0,8);
            $to = $email;
            $subject = "Signup of Account";
            $msg =
            <html>
            <body>
              <p>Thank you <strong>Mr/s. $firstname $lastname</strong> for creating an account.</p>
              <p>You are just one step away for registering your account. Here is your <strong>activation code</strong>.</p>
              <h1 style=\"text-align:center\">$code</h1>
              <h3><strong>Code is active for only 2 minutes.</strong></h3>
            </body>
            </html>
            ";
            $header = "MIME-Version: 1.0" . "\r\n";
            $header .= "Content-type:text/html;charset=UTF-8" . "\r\n";
            $header .= "From: noreply@website_name.com" . "\r\n";
            if(mail($to, $subject, $msg, $header)) {
              //$display = "block";
              $_SESSION["firstname"] = $firstname;
              $_SESSION["lastname"] = $lastname;
              $_SESSION["username"] = $username;
              $_SESSION["password"] = $password;
              $_SESSION["email"] = $email;
              $_SESSION["code"] = md5($code);
              $_SESSION["form1_time"] = $form1_time;
              $js1 = "<script>
                        $(document).ready(function() {
                          $('.sign_up').collapse('hide');
                          $('.verification').collapse('show');
                        });
                      </script>";
              $message = "";

              //echo $code;
            }
            else
              $message = "Sorry, email containing activation code can't be send right now. Try again later!";
          }
        }
        if(!empty($_POST['next2'])) {
          $form2_time = time();
          $form1_time = isset($_SESSION['form1_time']) ? $_SESSION['form1_time'] : 0;

          echo "<script>
                  $(document).ready(function() {
                    $('.sign_up').removeClass('show');
                    $('.verification').addClass('show');
                  });
                </script>";

          $email = isset($_SESSION['email']) ? $_SESSION['email'] : "";

          if(empty($_POST['otp']))
            $otperr = "Please enter activation code.";
          else {
            $otp = md5($_POST['otp']);
            $code = isset($_SESSION['code']) ? $_SESSION['code'] : "";

            $firstname = isset($_SESSION['firstname']) ? $_SESSION['firstname'] : "";
            $lastname = isset($_SESSION['lastname']) ? $_SESSION['lastname'] : "";
            $username = isset($_SESSION['username']) ? $_SESSION['username'] : "";
            $password = isset($_SESSION['password']) ? $_SESSION['password'] : "";

            session_unset();
            session_destroy();

            if($form2_time - $form1_time > 120)
              $otperr = "Sorry, activation Code is now destroyed. Please sign up again to receive another activation code.";
            else if($code === $otp) {
              $sql = "INSERT INTO users VALUES ('$firstname', '$lastname', '$username', '$password', '$email')";
              if(mysqli_query($conn, $sql) === TRUE)
                echo "<script>alert('Your account is created. Redirecting to sign in page.');</script>";
              else
                echo "<script>alert('Sorry, unexpected error occured. Please try again later. Redirecting to sign in page.');</script>";
              echo "<script>location.replace('student_signin.php');</script>";
            }
            else
              $otperr = "Code didn't match. Please sign up again to receive another activation code.";
          }
        }
      }

      function testIt($data) {
        $data = trim($data);
        $data = stripslashes($data);
        $data = htmlspecialchars($data);
        return $data;
      }

      mysqli_close($conn);
    ?>

    <title>Student's SignUp</title>
    <style>
      .error {
        color : red;
        font-size: 0.8rem;
      }
    </style>
  </head>

  <body style="background-color:#ECEFF1;">

    <nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top shadow-lg">
      <a class="navbar-brand" href="index.php">
        <img class="mt-n1 pr-1" src="logo.png" alt="Logo" style="height:2rem;">
        <strong style="font-family:'Caveat', 'Times New Roman', cursive; letter-spacing:4px;"> WebNotices</strong>
      </a>

      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".links"><span class="navbar-toggler-icon"></span></button>

      <div class="collapse navbar-collapse links">
        <ul class="navbar-nav ml-auto">
          <li class="nav-item"><a class="nav-link" href="student_signup.php">Sign up</a></li>
          <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle" href="#" data-toggle="dropdown">Sign in</a>
            <div class="dropdown-menu dropdown-menu-right">
              <a class="dropdown-item" href="admin_signin.php">Admin</a>
              <a class="dropdown-item" href="student_signin.php">Student</a>
            </div>
          </li>
        </ul>
      </div>

    </nav>

    <div class="p-sm-4"></div>
    <div style="background-color:white;" class="col-lg-5 col-md-6 col-sm-7 p-5 mx-auto mt-5 mb-sm-5 shadow rounded">

      <div class="sign_up connOne collapse">
        <h2 class="text-center">Student's Sign up</h2><br>
        <form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']) ?>" method="post">
          <div class="col-sm-6 p-0 pl-sm-0 pr-sm-4 float-sm-left">
            <input class="form-control" type="text" name="firstname" value="<?php echo $firstname; ?>" placeholder="First name">
            <div class="error mt-2"><?php echo $firsterr; ?></div><br>
          </div>
          <div class="col-sm-6 p-0 pl-sm-4 pr-sm-0 float-sm-right">
            <input class="form-control" type="text" name="lastname" value="<?php echo $lastname; ?>" placeholder="Last name">
            <div class="error mt-2"><?php echo $lasterr; ?></div><br>
          </div>
          <input class="form-control" type="text" name="username" value="<?php echo $username; ?>" placeholder="Username">
          <div class="error mt-2"><?php echo $usererr; ?></div><br>
          <div class="col-sm-6 p-0 pl-sm-0 pr-sm-4 float-sm-left">
            <input class="form-control" type="password" name="password" placeholder="Password">
            <div class="error mt-2"><?php echo $passerr; ?></div><br>
          </div>
          <div class="col-sm-6 p-0 pl-sm-4 pr-sm-0 float-sm-right">
            <input class="form-control" type="password" name="confirm" placeholder="Confirm">
            <div class="error mt-2"><?php echo $confirmerr; ?></div><br>
          </div>
          <input class="form-control" type="text" name="email" value="<?php echo $email; ?>" placeholder="Email">
          <div class="error mt-2"><?php echo $emailerr; ?></div><br>
          <input class="form-control btn btn-primary" type="submit" name="next1" value="Sign up">
        </form>
        <br><br>
        <div class="text-center">Have an account? <a href="student_signin.php">Sign in</a></div>
      </div>

      <div class="verification connOne collapse">
        <h2 class="text-center">E-mail verification</h2><br>
        <h5 class="text-center">An activation code is send to your email address '<?php echo $email; ?>'. Enter the code below to acivate your account.</h5><br>
        <form action="<?php echo htmlspecialchars($_SERVER['PHP_SELF']) ?>" method="post">
          <input class="form-control" type="password" name="otp" placeholder="Activation Code">
          <div class="error mt-2"><?php echo $otperr; ?></div><br>
          <button class="back col-4 btn btn-outline-primary float-left" type="button" name="back2" data-toggle="collapse" data-target=".connOne">Back</button>
          <input class="next col-4 form-control btn btn-primary float-right" type="submit" name="next2" value="Confirm">
        </form>
        <br><br>
        <div class="text-center">Have an account? <a href="student_signin.php">Sign in</a></div>
      </div>

    </div>

    <?php
      echo $js1;
      if(!empty($message))
        echo "<script>alert(\"".$message."\");</script>";
    ?>
  </body>

</html>