Online-Examination-Software/index.php at master · ashmohd/Online-Examination-Software · 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


 <?php

 /*
***************************************************
*** Online Examination System                   ***
*** Title:  Student Authentication              ***
***************************************************
*/

 /* Procedure
*********************************************

 * ----------- *
 * PHP Section *
 * ----------- *
Step 1: Event to Process...
        Case 1 : Register - redirect to Registration Page.
        Case 2 : Authenticate


 * ------------ *
 * HTML Section *
 * ------------ *
Step 2: Display the Html page to receive Authentication Parameters(Name & Password).

*********************************************
*/

      error_reporting(0);
      session_start();
      include_once 'oesdb.php';
/***************************** Step 1 : Case 1 ****************************/
 //redirect to registration page
      if(isset($_REQUEST['register']))
      {
            header('Location: register.php');
      }
      else if($_REQUEST['stdsubmit'])
      {
/***************************** Step 1 : Case 2 ****************************/
 //Perform Authentication
          $result=executeQuery("select *,DECODE(stdpassword,'oespass') as std from student where stdname='".htmlspecialchars($_REQUEST['name'],ENT_QUOTES)."' and stdpassword=ENCODE('".htmlspecialchars($_REQUEST['password'],ENT_QUOTES)."','oespass')");
          if(mysql_num_rows($result)>0)
          {

              $r=mysql_fetch_array($result);
              if(strcmp(htmlspecialchars_decode($r['std'],ENT_QUOTES),(htmlspecialchars($_REQUEST['password'],ENT_QUOTES)))==0)
              {
                  $_SESSION['stdname']=htmlspecialchars_decode($r['stdname'],ENT_QUOTES);
                  $_SESSION['stdid']=$r['stdid'];
                  unset($_GLOBALS['message']);
                  header('Location: studentwelcome.php');
              }else
          {
              $_GLOBALS['message']="Check Your user name and Password.";
          }

          }
          else
          {
              $_GLOBALS['message']="Check Your user name and Password.";
          }
          closedb();
      }
 ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
  <head>
    <title>Online Examination System</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    <link rel="stylesheet" type="text/css" href="oes.css"/>
  </head>
  <body>
      <?php

        if($_GLOBALS['message'])
        {
         echo "<div class=\"message\">".$_GLOBALS['message']."</div>";
        }
      ?>

      <div id="container">

                <div class="header"><h3 class="headtext"> &nbsp;Online Examination System </h3><h4 style="color:#ffffff;text-align:center;margin:0 0 5px 5px;">
            </div>
     <form id="stdloginform" action="index.php" method="post">
      <div class="menubar">

       <ul id="menu">
                    <?php if(isset($_SESSION['stdname'])){
                          header('Location: studentwelcome.php');}else{
                          /***************************** Step 2 ****************************/
                        ?>

                      <!--  <li><input type="submit" value="Register" name="register" class="subbtn" title="Register"/></li>-->
           <li><div class="aclass"><a href="register.php" title="Click here  to Register">Register</a></div></li>
                        <?php } ?>
                    </ul>

      </div>
      <div class="page">

              <table cellpadding="30" cellspacing="10">
              <tr>
                  <td>User Name</td>
                  <td><input type="text" tabindex="1" name="name" value="" size="16" /></td>

              </tr>
              <tr>
                  <td>Password</td>
                  <td><input type="password" tabindex="2" name="password" value="" size="16" /></td>
              </tr>

              <tr>
                  <td colspan="2">
                      <input type="submit" tabindex="3" value="Log In" name="stdsubmit" class="subbtn" />
                  </td><td></td>
              </tr>
            </table>


      </div>
       </form>
      </div>
  </body>
</html>