1113 lines
41 KiB
PHP
1113 lines
41 KiB
PHP
<?php
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include 'NoDirectPhpAcess.php';
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?>
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<?php
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/*
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* This file contains the main Server-side scripts for the project.
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*/
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session_start();
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date_default_timezone_set('Asia/Shanghai');
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// Connect to MySQL database
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include "get_mysql_credentials.php";
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$con = mysqli_connect("localhost", $mysql_username, $mysql_password, "lrr");
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// Check connection
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if (mysqli_connect_errno()) {
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echo "Failed to connect to MySQL: " . mysqli_connect_error();
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}
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error_reporting(0);
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// #### FUNCTION CHECK FILE TYPES ////
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function is_valid_student_number($student_id)
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{
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// zjnu student number has 12 digits, and starts with 20
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if (strlen($student_id) == 12 && is_numeric($student_id) == TRUE && substr($student_id, 0, 2) == "20")
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return TRUE;
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return FALSE;
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}
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// ############################### SIGN UP ##################################
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if (!empty($_POST["form_signup"])) {
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$student_id = trim(mysqli_real_escape_string($con, $_POST["user_student_id"]));
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// validate student number
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if (!is_valid_student_number($student_id)) {
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$_SESSION["info_signup"] = "Invalid student number.";
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header("Location: signup.php");
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return;
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}
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// Check if this student number is a legal one
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$result = mysqli_query($con, "SELECT * FROM `students_data` WHERE Student_ID='$student_id'");
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if (mysqli_num_rows($result) == 0) {
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$_SESSION["info_signup"] = "Your entered student number could not be verified. Please contact Student Management Office <lanhui at zjnu.edu.cn>. Thanks.";
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header("Location: signup.php");
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return;
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}
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// Check if the student number isn't already registered
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$student_result = mysqli_query($con, "SELECT * FROM `users_table` WHERE Student_ID='$student_id'");
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if (mysqli_num_rows($student_result) > 0) {
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$_SESSION["info_signup"] = "This Student ID is already in use! Please contact Student Management Office <lanhui at zjnu.edu.cn> for help.";
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header("Location: signup.php");
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return;
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}
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}
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// ############################### CREATE STUDENT USER ##################################
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if (!empty($_POST["form_signup"])) {
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$fullname = mysqli_real_escape_string($con, $_POST["fullname"]);
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$student_id = mysqli_real_escape_string($con, $_POST["user_student_id"]);
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$email = mysqli_real_escape_string($con, $_POST["email"]);
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$password = mysqli_real_escape_string($con, $_POST["password"]);
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$confirmpassword = mysqli_real_escape_string($con, $_POST["confirmpassword"]);
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$_SESSION['user_fullname'] = $fullname;
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$_SESSION['user_type'] = "Student";
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$_SESSION['user_email'] = $email;
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$_SESSION['user_student_id'] = $student_id;
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// check confirmed password
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if (strcasecmp($password, $confirmpassword) != 0) {
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$_SESSION['info_signup'] = "Password confirmation failed.";
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$_SESSION['user_fullname'] = null; // such that Header.php do not show the header information.
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header("Location: signup.php");
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return;
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}
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// validate email
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if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
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$_SESSION['info_signup'] = "Invalid email address.";
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header("Location: signup.php");
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return;
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}
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$upperLetter = preg_match('@[A-Z]@', $password);
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$smallLetter = preg_match('@[a-z]@', $password);
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$containsDigit = preg_match('@[0-9]@', $password);
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$containsSpecial = preg_match('@[^\w]@', $password);
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$containsAll = $upperLetter && $smallLetter && $containsDigit && $containsSpecial;
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// check for strong password
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if (!$containsAll) {
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$_SESSION['info_signup'] = "Password must have at least characters that include lowercase letters, uppercase letters, numbers and special characters (e.g., !?.,*^).";
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header("Location: signup.php");
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return;
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}
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// check if email is taken
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$result = mysqli_query($con, "SELECT * FROM users_table WHERE email='$email'");
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if (mysqli_num_rows($result) != 0) {
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$_SESSION["info_signup"] = "Email address " . $email . " is already in use.";
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$_SESSION['user_fullname'] = null;
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header("Location: signup.php");
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return;
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}
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// apply password_hash()
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$password_hash = password_hash($password, PASSWORD_DEFAULT);
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$sql = "INSERT INTO `users_table`(`Email`, `Password`, `Full_Name`, `UserType`, `Student_ID`) VALUES "
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. "('$email','$password_hash','$fullname','Student','$student_id')";
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if ($con->query($sql) === TRUE) {
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header("Location: Courses.php");
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} else {
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echo "Something really bad (SQL insertion error) happened during sign up.";
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}
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}
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// ################################ LOGIN #####################################
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if (!empty($_POST["frm_login"])) {
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$user = mysqli_real_escape_string($con, $_POST["user"]); // user could be a 12-digit student number or an email address
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$is_student_number = 0;
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// Validate student number
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if (is_valid_student_number($user)) {
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$is_student_number = 1;
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}
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// Validate email address if what provided is not a student number
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if (!$is_student_number && !filter_var($user, FILTER_VALIDATE_EMAIL)) {
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$_SESSION["info_login"] = "Invalid email address: " . "$user";
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header("Location: index.php");
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return;
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}
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$password = mysqli_real_escape_string($con, $_POST["password"]);
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$result = mysqli_query($con, "SELECT * FROM users_table WHERE (Student_ID='$user') OR (Email='$user')");
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if (mysqli_num_rows($result) == 0) {
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$_SESSION["info_login"] = "Invalid user name information.";
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echo $_SESSION["info_login"];
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header("Location: index.php");
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} else {
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while ($row = mysqli_fetch_assoc($result)) {
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// verify the hashed password and unhashed password
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$sha512pass = hash('sha512', $password); // for backward compatibility. Old passwords were hashed using SHA512 algorithm.
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if (password_verify($password, $row["Password"]) or $sha512pass == $row["HashPassword"]) {
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$_SESSION['user_id'] = $row['User_ID'];
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$_SESSION['user_email'] = $row['Email'];
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$_SESSION['user_student_id'] = $row['Student_ID'];
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$_SESSION['user_type'] = $row['UserType'];
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$_SESSION['user_fullname'] = $row['Full_Name'];
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if ($_SESSION['user_type'] == "Student") {
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header("Location: Courses.php");
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}
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if ($_SESSION['user_type'] == "Lecturer") {
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header("Location: Courses.php");
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}
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if ($_SESSION['user_type'] == "TA") {
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header("Location: Courses.php");
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}
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if ($_SESSION['user_type'] == "Admin") {
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header("Location: Admin.php");
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}
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// report wrong pass if not correct
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} else {
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$_SESSION["wrong_pass"] = "Wrong Password.";
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header("Location: index.php");
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}
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}
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}
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}
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// ################################ Recover Password #####################################
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if (!empty($_POST["frm_recover_password"])) {
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$student_id = mysqli_real_escape_string($con, $_POST["sno"]);
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$email = mysqli_real_escape_string($con, $_POST["email"]);
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// validate student number
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if (strlen($student_id) != 12 || is_numeric($student_id) == FALSE) {
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$_SESSION["info_recover_password"] = "Invalid student number.";
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header("Location: recover_password.php");
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return;
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}
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// validate email
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if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
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$_SESSION["info_recover_password"] = "Invalid email address.";
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// echo "Invalid email address.";
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header("Location: recover_password.php");
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return;
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}
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$result = mysqli_query($con, "SELECT * FROM users_table WHERE Email='$email' and Student_ID='$student_id'");
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if (mysqli_num_rows($result) == 0) {
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$_SESSION["info_recover_password"] = "Email address is not recognised.";
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$_SESSION["info_recover_password"] = "Identity not recognized. Try again or send an inquiry email message to lanhui at zjnu.edu.cn.";
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header("Location: recover_password.php");
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} else {
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$result = mysqli_query($con, "DELETE FROM users_table WHERE Email='$email' and Student_ID='$student_id'");
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header("Location: signup.php");
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}
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}
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// ################################ RESET Password #####################################
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if (!empty($_POST["frm_reset_password"])) {
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$password = mysqli_real_escape_string($con, $_POST["password"]);
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$token = mysqli_real_escape_string($con, $_POST["token"]);
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$email = mysqli_real_escape_string($con, $_POST["email"]);
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$result = mysqli_query(
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$con,
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"SELECT * FROM Users_Table WHERE email='$email'"
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);
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if (mysqli_num_rows($result) == 0) {
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echo "invalid email";
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return;
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} else {
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while ($row = mysqli_fetch_assoc($result)) {
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$userid = $row['User_ID'];
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$email = $row['Email'];
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$id = $row['Student_ID'];
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$user_token = $userid * $userid * $userid + $userid * 0.00343;
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if ($user_token == $token) {
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// Password Update
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// Password Update
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$hashed_password = hash('sha512', $password);
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$sql = "UPDATE users_table set HashPassword='$hashed_password' where User_ID='$userid';";
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if ($con->query($sql) === TRUE) {
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error_reporting(0);
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$_SESSION["info_login"] = " Password changed successfully , you can login now with your new password ";
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header("Location: index.php");
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} else {
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echo "Error: " . $sql . "<br>" . $con->error;
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}
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} else {
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echo "Invalid Token ";
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}
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}
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}
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}
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// ############################### CREATE Lecturer/TA USER ##################################
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if (!empty($_POST["frm_createlecturrer"])) {
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$email = mysqli_real_escape_string($con, $_POST["email"]);
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$fullname = mysqli_real_escape_string($con, $_POST["fullname"]);
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$type = mysqli_real_escape_string($con, $_POST["type"]);
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$password = mysqli_real_escape_string($con, $_POST["passport"]);
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// check if email is taken
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$result = mysqli_query(
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$con,
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"SELECT * FROM Users_Table WHERE email='$email'"
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);
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if (mysqli_num_rows($result) != 0) {
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$_SESSION["info_Admin_Users"] = "Email address : " . $email . " is already in use.";
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header("Location: Admin.php");
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}
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$password_hash = password_hash("$password", PASSWORD_DEFAULT);
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$sql = "INSERT INTO `users_table`(`Email`, `Password`, `Full_Name`, `UserType`) VALUES "
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. "('$email','$password_hash','$fullname','$type')";
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if ($con->query($sql) === TRUE) {
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$_SESSION["info_Admin_Users"] = $type . " user created successfully. Use email " . $email . " as account name and $password as password.";
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header("Location: Admin.php");
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} else {
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echo "Error: " . $sql . "<br>" . $con->error;
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}
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}
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// #### FUNCTION CHECK FILE TYPES ////
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function is_valid_file_format($file)
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{
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$allowed = array(
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'pdf', 'rtf', 'jpg', 'png', 'doc', 'docx', 'xls', 'xlsx', 'sql', 'txt', 'md', 'py', 'css', 'html',
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'cvc', 'c', 'class', 'cpp', 'h', 'java', 'sh', 'swift', 'zip', 'rar', 'ods', 'xlr', 'bak', 'ico', 'swf'
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);
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$filename = $_FILES[$file]['name'];
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$ext = pathinfo($filename, PATHINFO_EXTENSION);
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$result = in_array($ext, $allowed);
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return $result;
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}
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// #### FUNCTION CREATE DIRECTORIES ////
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function Create_dir($upPath)
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{
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try {
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// full path
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$tags = explode('/', $upPath); // explode the full path
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$mkDir = "";
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foreach ($tags as $folder) {
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$mkDir = $mkDir . $folder . "/"; // make one directory join one other for the nest directory to make
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echo '"' . $mkDir . '"<br/>'; // this will show the directory created each time
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if (!is_dir($mkDir)) { // check if directory exist or not
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mkdir($mkDir, 0777); // if not exist then make the directory
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}
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}
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} catch (Exception $e) {
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return FALSE;
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}
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return $upPath;
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}
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function mkdirs($path)
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{
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if (file_exists($path))
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return $path;
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$result = mkdir($path, 0777, true);
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if ($result) {
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return $path;
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}
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return $result;
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}
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// ############################### #Post Assignment ##################################
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if (!empty($_POST["frm_uploadlab"])) {
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$course_id = mysqli_real_escape_string($con, $_POST["course_id"]);
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$deadlinedate = $_POST["deadlinedate"];
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$deadlinetime = $_POST["deadlinetime"];
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$instructions = mysqli_real_escape_string($con, $_POST["instructions"]);
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$title = mysqli_real_escape_string($con, $_POST["title"]);
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$marks = mysqli_real_escape_string($con, $_POST["marks"]);
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// $url=mysqli_real_escape_string($con,$_POST["url"]);
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$url = $_SESSION['url']; //using real_escape_string was failing to redirect to the main page
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$type = mysqli_real_escape_string($con, $_POST["type"]);
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$deadline = $deadlinedate . " " . $deadlinetime;
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$date = date("Y-m-d H:i:s");
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// GET UPLOADED FILES
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$target_dir = Create_dir("Lab_Report_Assignments/" . $title . "/");
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$rnd = rand(10, 1000);
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$rnd = ""; // no more required , creating folder for each lab
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$targetfile = $target_dir . $rnd . $_FILES['attachment1']['name'];
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$targetfile2 = $target_dir . $rnd . $_FILES['attachment2']['name'];
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$targetfile3 = $target_dir . $rnd . $_FILES['attachment3']['name'];
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$targetfile4 = $target_dir . $rnd . $_FILES['attachment4']['name'];
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$count = 0;
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if (!is_valid_file_format("attachment1") && $_FILES["attachment1"]["name"] != "") {
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echo "Invalid File Type for Attachment 1";
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return;
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}
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if (!is_valid_file_format("attachment2") && $_FILES["attachment2"]["name"] != "") {
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echo "Invalid File Type for Attachment 2";
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return;
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}
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if (!is_valid_file_format("attachment3") && $_FILES["attachment3"]["name"] != "") {
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echo "Invalid File Type for Attachment 3";
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return;
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}
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// use 4 for missing file
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if (move_uploaded_file($_FILES['attachment1']['tmp_name'], $targetfile)) {
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$count++;
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} else {
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echo $_FILES['attachment1']['error'];
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}
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if (move_uploaded_file($_FILES['attachment2']['tmp_name'], $targetfile2)) {
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$count++;
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} else {
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echo $_FILES['attachment2']['error'];
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}
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if (move_uploaded_file($_FILES['attachment3']['tmp_name'], $targetfile3)) {
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$count++;
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} else {
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echo $_FILES['attachment3']['error'];
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}
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if (move_uploaded_file($_FILES['attachment4']['tmp_name'], $targetfile4)) {
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$count++;
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} else {
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echo $_FILES['attachment4']['error'];
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}
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echo $count . " File(s) uploaded";
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//CLEAN
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$targetfile = "";
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$targetfile2 = "";
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$targetfile3 = "";
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$targetfile4 = "";
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if ($_FILES['attachment1']['name'] != "") {
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$targetfile = "/" . $title . "/" . $_FILES['attachment1']['name'];
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}
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if ($_FILES['attachment2']['name'] != "") {
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$targetfile2 = "/" . $title . "/" . $_FILES['attachment2']['name'];
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}
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if ($_FILES['attachment3']['name'] != "") {
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$targetfile3 = "/" . $title . "/" . $_FILES['attachment3']['name'];
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}
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if ($_FILES['attachment4']['name'] != "") {
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$targetfile4 = "/" . $title . "/" . $_FILES['attachment4']['name'];
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}
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$sql = "INSERT INTO `lab_reports_table`(`Course_ID`, `Posted_Date`, `Deadline`, `Instructions`,
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`Title`, `Attachment_link_1`, `Attachment_link_2`, `Attachment_link_3`, `Attachment_link_4`,Marks,Type)
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VALUES ('$course_id','$date','$deadline','$instructions','$title','$targetfile','$targetfile2','$targetfile3','$targetfile3','$marks','$type')";
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if ($con->query($sql) === TRUE) {
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$_SESSION["info_courses"] = $type . " lab report assignment posted successfully.";
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header("Location: Courses.php?course=" . $url);
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} else {
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echo "Error: " . $sql . "<br>" . $con->error;
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}
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}
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function checksize($file)
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{
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$result = $_FILES["$file"]['size'] / (1024 * 1024);
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if ($result > 1) {
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return FALSE;
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}
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return TRUE;
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}
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// ############################### Submit Assignment ##################################
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if (!empty($_POST["frm_submitlab"])) {
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$lab_id = mysqli_real_escape_string($con, $_POST["lab_id"]);
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$student_id = $_POST["student_id"];
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$group_id = $_POST["group_id"];
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$instructions = mysqli_real_escape_string($con, $_POST["instructions"]);
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$title = mysqli_real_escape_string($con, $_POST["title"]);
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$url = mysqli_real_escape_string($con, $_POST["url"]);
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$deadline = $deadlinedate . " " . $deadlinetime;
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$date = date("Y-m-d H:i:s");
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// GET UPLOADED FILES
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$labName = mysqli_query($con, "SELECT * FROM `lab_reports_table` WHERE Lab_Report_ID='$lab_id'");
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while ($row = mysqli_fetch_assoc($labName)) {
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$lab_name = $row['Title'];
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$_SESSION['Sub_Type'] = $row['Type']; // submission type, either Individual or Group
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}
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|
|
$upload_folder = "Lab_Report_Submisions"; // old place for storing students' submissions
|
|
$upload_folder = "./../../lrr_submission";
|
|
$target_dir = mkdirs($upload_folder . "/" . $student_id . "/" . $url . "/" . $lab_name . "/"); # url is actually course code plus academic year, e.g., CSC3122020
|
|
$targetfile = $target_dir . $_FILES['attachment1']['name'];
|
|
$targetfile2 = $target_dir . $_FILES['attachment2']['name'];
|
|
$targetfile3 = $target_dir . $_FILES['attachment3']['name'];
|
|
$targetfile4 = $target_dir . $_FILES['attachment4']['name'];
|
|
|
|
$count = 0;
|
|
|
|
//check zise
|
|
if (!checksize("attachment1")) {
|
|
echo "1 MB is the maximum file size allowed";
|
|
return;
|
|
}
|
|
if (!checksize("attachment2") && $_FILES["attachment2"]["name"] != "") {
|
|
echo "1 MB is the maximum file size allowed";
|
|
return;
|
|
}
|
|
if (!checksize("attachment3") && $_FILES["attachment3"]["name"] != "") {
|
|
echo "1 MB is the maximum file size allowed";
|
|
return;
|
|
}
|
|
|
|
if (!is_valid_file_format("attachment1")) {
|
|
echo "Invalid File Type for Attachment 1";
|
|
return;
|
|
}
|
|
if (!is_valid_file_format("attachment2") && $_FILES["attachment2"]["name"] != "") {
|
|
echo "Invalid File Type for Attachment 2";
|
|
return;
|
|
}
|
|
if (!is_valid_file_format("attachment3") && $_FILES["attachment3"]["name"] != "") {
|
|
echo "Invalid File Type for Attachment 3";
|
|
return;
|
|
}
|
|
|
|
if ($_FILES["attachment1"]["error"] != 0) {
|
|
echo "Error when uploading the file.";
|
|
return;
|
|
}
|
|
|
|
// use 4 for missing file
|
|
|
|
if (move_uploaded_file($_FILES['attachment1']['tmp_name'], $targetfile)) {
|
|
$count++;
|
|
} else {
|
|
echo $_FILES['attachment1']['error'];
|
|
}
|
|
|
|
if (move_uploaded_file($_FILES['attachment2']['tmp_name'], $targetfile2)) {
|
|
$count++;
|
|
} else {
|
|
echo $_FILES['attachment2']['error'];
|
|
}
|
|
|
|
if (move_uploaded_file($_FILES['attachment3']['tmp_name'], $targetfile3)) {
|
|
$count++;
|
|
} else {
|
|
echo $_FILES['attachment3']['error'];
|
|
}
|
|
|
|
if (move_uploaded_file($_FILES['attachment4']['tmp_name'], $targetfile4)) {
|
|
$count++;
|
|
} else {
|
|
echo $_FILES['attachment4']['error'];
|
|
}
|
|
|
|
echo $count . " File(s) uploaded";
|
|
|
|
//CLEAN
|
|
$targetfile1 = "";
|
|
$targetfile2 = "";
|
|
$targetfile3 = "";
|
|
$targetfile4 = "";
|
|
|
|
if (strlen($_FILES['attachment1']['name']) > 2) { // why greater than 2???
|
|
$targetfile = "/" . $student_id . "/" . $url . "/" . $lab_name . "/" . rawurlencode($_FILES['attachment1']['name']);
|
|
}
|
|
|
|
if (strlen($_FILES['attachment2']['name']) > 2) {
|
|
$targetfile2 = "/" . $student_id . "/" . $url . "/" . $lab_name . "/" . rawurlencode($_FILES['attachment2']['name']);
|
|
}
|
|
|
|
if (strlen($_FILES['attachment3']['name']) > 2) {
|
|
$targetfile3 = "/" . $student_id . "/" . $url . "/" . $lab_name . "/" . rawurlencode($_FILES['attachment3']['name']);
|
|
}
|
|
|
|
if (strlen($_FILES['attachment4']['name']) > 2) {
|
|
$targetfile4 = "/" . $student_id . "/" . $url . "/" . $lab_name . "/" . rawurlencode($_FILES['attachment4']['name']);
|
|
}
|
|
|
|
// When $group_id is not properly initialized, use integer 0 as its value.
|
|
// This temporarily fixed the "Students unable to submit assignment after a recent change" bug at http://118.25.96.118/bugzilla/show_bug.cgi?id=65
|
|
if (trim($group_id) === '') { // when $group_id is an empty string or contains only whitespace characters.
|
|
$group_id = 0; // FIXME
|
|
}
|
|
|
|
$sql1 = "DELETE FROM lab_report_submissions where Lab_Report_ID='$lab_id' and Student_id='$student_id' and Course_Group_id='$group_id'";
|
|
if ($con->query($sql1) === TRUE) {
|
|
}
|
|
|
|
$sql = "INSERT INTO `lab_report_submissions`(`Submission_Date`, `Lab_Report_ID`, `Student_id`,"
|
|
. " `Course_Group_id`, `Attachment1`, `Notes`, `Attachment2`, `Attachment3`, `Attachment4`, `Status`, `Title`,`Remarking_Reason`)"
|
|
. " VALUES ('$date','$lab_id','$student_id','$group_id','$targetfile','$instructions','$targetfile2','$targetfile3','$targetfile4',"
|
|
. "'Pending','$title','')";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
if ($_SESSION['Sub_Type'] == 'Individual') {
|
|
$con->query($sql = "UPDATE `lab_report_submissions` SET `Course_Group_id` = '0' WHERE `lab_report_submissions`.`Lab_Report_ID` = '$lab_id'");
|
|
}
|
|
|
|
$_SESSION["info_courses"] = "Thanks. Your lab report assignment is submitted successfully.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: <br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
// JOIN COURSE
|
|
if (!empty($_GET["JoinCourse"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$student_id = mysqli_real_escape_string($con, $_GET["std"]);
|
|
$joining = mysqli_real_escape_string($con, $_GET["joining"]);
|
|
$status = "Pending";
|
|
|
|
if ($joining == 0) {
|
|
$status = "Joined";
|
|
}
|
|
|
|
$sql = "INSERT INTO `course_students_table`(`Course_ID`, `Student_ID`,`Status`) VALUES ('$id','$student_id','$status')";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
if ($joining == 0) {
|
|
$_SESSION["info_Courses_student"] = "You enrolled in this course successfully.";
|
|
} else {
|
|
$_SESSION["info_Courses_student"] = "Course enrollment request was sent to the lecturer.";
|
|
}
|
|
|
|
header("Location: Courses.php");
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#MARK LAB REPORT
|
|
|
|
if (!empty($_GET["savemarks"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$marks = mysqli_real_escape_string($con, $_GET["marks"]);
|
|
$total = mysqli_real_escape_string($con, $_GET["total"]);
|
|
$feedback = mysqli_real_escape_string($con, $_GET["feedback"]);
|
|
$header = mysqli_real_escape_string($con, $_GET["header"]);
|
|
$labid = mysqli_real_escape_string($con, $_GET["labid"]);
|
|
$status = "Marked";
|
|
|
|
if ($marks > $total) {
|
|
echo " Marks could not be greater than total";
|
|
return;
|
|
}
|
|
$date = date("Y-m-d H:i:s");
|
|
$feedback = "<br>@$date : " . $feedback;
|
|
|
|
$sql = "UPDATE `lab_report_submissions` SET `Marks`='$marks',`Status`='$status',"
|
|
. ""
|
|
. "Notes=if(Notes is null, ' ', concat(Notes, '$feedback'))"
|
|
. ""
|
|
. " WHERE Submission_ID=$id
|
|
";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$_SESSION["info_Marking"] = "Lab Report Submission Marked";
|
|
header("Location: Submissions.php?id=" . $labid . "&header=" . $header . "&total=" . $total);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Update Report Visibility
|
|
if (!empty($_GET["updatevisibility"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$marks = mysqli_real_escape_string($con, $_GET["marks"]);
|
|
$total = mysqli_real_escape_string($con, $_GET["total"]);
|
|
$status = mysqli_real_escape_string($con, $_GET["status"]);
|
|
$header = mysqli_real_escape_string($con, $_GET["header"]);
|
|
$labid = mysqli_real_escape_string($con, $_GET["labid"]);
|
|
|
|
$sql = "UPDATE `lab_report_submissions` SET `Visibility`='$status' WHERE Submission_ID='$id'
|
|
";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$_SESSION["info_Marking"] = "Lab Report Visibility Updated";
|
|
header("Location: Submissions.php?id=" . $labid . "&header=" . $header . "&total=" . $total);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Remarking Request
|
|
|
|
if (!empty($_GET["remarking"])) {
|
|
|
|
$id = htmlspecialchars(mysqli_real_escape_string($con, $_GET["id"]));
|
|
$url = htmlspecialchars(mysqli_real_escape_string($con, $_GET["url"]));
|
|
|
|
$status = htmlspecialchars(mysqli_real_escape_string($con, $_GET["status"]));
|
|
$details = htmlspecialchars(mysqli_real_escape_string($con, $_GET["details"]));
|
|
|
|
$sql = "UPDATE `lab_report_submissions` SET `Status`='Remarking',Remarking_Reason='$details' WHERE Submission_ID='$id'
|
|
";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$_SESSION["info_general"] = "Remarking Request Sent";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Create Group Request
|
|
|
|
if (!empty($_GET["creategroup"])) {
|
|
|
|
$student_id = mysqli_real_escape_string($con, $_GET["student_id"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$name = mysqli_real_escape_string($con, $_GET["name"]);
|
|
|
|
$sql = "INSERT INTO `course_groups_table`(`Group_Name`,
|
|
`Group_Leader`, `Course_id`) VALUES ('$name','$student_id','$id')";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$resultx1 = mysqli_query($con, "Select Max(Course_Group_id) as cnt from course_groups_table");
|
|
while ($row = mysqli_fetch_assoc($resultx1)) {
|
|
$gid = $row['cnt'];
|
|
}
|
|
|
|
$sql = "INSERT INTO `course_group_members_table`( `Course_Group_id`, `Student_ID`, `Status`)
|
|
VALUES ('$gid','$student_id','Created')";
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_general"] = "Course group Created";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
//---------------------------------------Invite Group Request and add a new member into the database------------------------------------
|
|
|
|
if (!empty($_GET["groupinvite"])) {
|
|
|
|
$student_id = mysqli_real_escape_string($con, $_GET["student_id"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
$courseid = mysqli_real_escape_string($con, $_GET["courseid"]);
|
|
$groupid = mysqli_real_escape_string($con, $_GET["groupid"]);
|
|
$student = mysqli_query($con, "SELECT * FROM students_data WHERE Student_ID = '$student_id' ");
|
|
|
|
if (mysqli_num_rows($student) > 0) {
|
|
|
|
$result = mysqli_query($con, "SELECT * FROM course_group_members_table where Course_Group_id = '$groupid' and Student_ID = '$student_id'");
|
|
if (mysqli_num_rows($result) > 0) {
|
|
$_SESSION["info_general"] = $student_id . " has already been invited.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
$sql = "INSERT INTO `course_group_members_table`( `Course_Group_id`, `Student_ID`, `Status`)
|
|
VALUES ('$groupid','$student_id','Invited')";
|
|
}
|
|
} else {
|
|
$_SESSION["info_general"] = $student_id . " is an invalid student number.";
|
|
header("Location: Course.php?url=" . $url);
|
|
}
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
$resultx1 = mysqli_query($con, "SELECT * FROM course_groups_table where Course_Group_id ='$groupid'");
|
|
|
|
while ($row = mysqli_fetch_assoc($resultx1)) {
|
|
$Group_Member = $row['Group_Member'];
|
|
$Group_Member4 = $row['Group_Member4'];
|
|
$Group_Member2 = $row['Group_Member2'];
|
|
$Group_Member3 = $row['Group_Member3'];
|
|
$_SESSION['Group_Member4'] = $Group_Member4;
|
|
$_SESSION['Group_Member3'] = $Group_Member3;
|
|
$_SESSION['Group_Member2'] = $Group_Member2;
|
|
$_SESSION['Group_Member'] = $Group_Member;
|
|
|
|
if ($Group_Member == '0') {
|
|
mysqli_query($con, "UPDATE `course_groups_table` SET `Group_Member` = ('" . $student_id . "') WHERE `course_groups_table`.`Course_Group_id` = '$groupid'");
|
|
$_SESSION["info_general"] = $student_id . " was invited to the group.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} elseif ($Group_Member2 == '0') {
|
|
mysqli_query($con, "UPDATE `course_groups_table` SET `Group_Member2` = ('" . $student_id . "') WHERE `course_groups_table`.`Course_Group_id` = '$groupid'");
|
|
$_SESSION["info_general"] = $student_id . " was invited to the group.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} elseif ($Group_Member3 == '0') {
|
|
mysqli_query($con, "UPDATE `course_groups_table` SET `Group_Member3` = ('" . $student_id . "') WHERE `course_groups_table`.`Course_Group_id` = '$groupid'");
|
|
$_SESSION["info_general"] = $student_id . " was invited to the group.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} elseif ($Group_Member4 == '0') {
|
|
mysqli_query($con, "UPDATE `course_groups_table` SET `Group_Member4` = ('" . $student_id . "') WHERE `course_groups_table`.`Course_Group_id` = '$groupid'");
|
|
$_SESSION["info_general"] = $student_id . " was invited to the group.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
$_SESSION["info_general"] = " You cannot add any more members";
|
|
header("Location: Course.php?url=" . $url);
|
|
}
|
|
}
|
|
$_SESSION["info_general"] = $student_id . " was invited to the group.";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Accept deny Group Invite
|
|
|
|
if (!empty($_GET["acceptinvite"])) {
|
|
|
|
$student_id = mysqli_real_escape_string($con, $_GET["student_id"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
$action = mysqli_real_escape_string($con, $_GET["action"]);
|
|
$groupid = mysqli_real_escape_string($con, $_GET["groupid"]);
|
|
|
|
if ($action == 1) {
|
|
$sql = "Update `course_group_members_table` set Status='Joined' where Course_Group_id ='$groupid' and student_id='$student_id'
|
|
";
|
|
} else {
|
|
$sql = "Delete from `course_group_members_table` where Course_Group_id ='$groupid' and student_id='$student_id'
|
|
";
|
|
}
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_general"] = " Group Invite Updated";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Remove a member from group
|
|
|
|
if (!empty($_GET["removemember"])) {
|
|
|
|
$student_id = mysqli_real_escape_string($con, $_GET["student_id"]);
|
|
$group_id = mysqli_real_escape_string($con, $_GET["group_id"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
|
|
$sql = "Delete from `course_group_members_table` where student_id=$student_id and Course_Group_id=$group_id";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_general"] = " Member " . $student_id . " removed from the group";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Delete a whole group
|
|
|
|
if (!empty($_GET["deletegroup"])) {
|
|
|
|
$group_id = mysqli_real_escape_string($con, $_GET["group_id"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
|
|
$sql1 = "Delete from `course_group_members_table` where Course_Group_id=$group_id";
|
|
$sql2 = "Delete from `course_groups_table` where Course_Group_id=$group_id";
|
|
|
|
if ($con->query($sql1) === TRUE && $con->query($sql2) === TRUE) {
|
|
$_SESSION["info_general"] = " Group has been deleted successfully. ";
|
|
header("Location: Course.php?url=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Extend Deadline
|
|
|
|
if (!empty($_GET["extenddeadline"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$date = mysqli_real_escape_string($con, $_GET["date"]);
|
|
$time = mysqli_real_escape_string($con, $_GET["time"]);
|
|
$type = mysqli_real_escape_string($con, $_GET["type"]);
|
|
|
|
$stdid = mysqli_real_escape_string($con, $_GET["stdid"]);
|
|
$reason = mysqli_real_escape_string($con, $_GET["reason"]);
|
|
$url = mysqli_real_escape_string($con, $_GET["url"]);
|
|
$deadline = $date . " " . $time;
|
|
|
|
if ($type == 1) {
|
|
$sql = "UPDATE `lab_reports_table` SET `Deadline`='$deadline' WHERE Lab_Report_ID='$id'";
|
|
} else {
|
|
$sql = "INSERT INTO `extended_deadlines_table`(`Student_ID`, "
|
|
. "`Lab_Report_ID`, `Extended_Deadline_Date`,"
|
|
. " `ReasonsForExtension`) VALUES ('$stdid','$id','$deadline','$reason')";
|
|
}
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$_SESSION["info_courses"] = " Lab Report Deadline extended successfully.";
|
|
header("Location: Courses.php?course=" . $url);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#IGNORE Remarking Request
|
|
|
|
if (!empty($_GET["ignoreremarking"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$total = mysqli_real_escape_string($con, $_GET["total"]);
|
|
$header = mysqli_real_escape_string($con, $_GET["header"]);
|
|
|
|
$subid = mysqli_real_escape_string($con, $_GET["subid"]);
|
|
|
|
$sql = "UPDATE lab_report_submissions SET Status='Marked' WHERE Submission_ID='$subid'";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
$_SESSION["info_Marking"] = "Remarking Request Ignored , Submission Updated to 'Marked' status";
|
|
header("Location: Submissions.php?id=" . $id . "&header=" . $header . "&total=" . $total);
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
#Assign TA
|
|
|
|
if (!empty($_GET["assignTA"])) {
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$ta = mysqli_real_escape_string($con, $_GET["ta"]);
|
|
|
|
// Check if the TA is already assigned to the course
|
|
$check_sql = "SELECT * FROM course_ta WHERE Course_ID='$id' AND TA='$ta'";
|
|
$check_result = $con->query($check_sql);
|
|
|
|
if ($check_result->num_rows > 0) {
|
|
// Alert user about the duplicate assignment
|
|
echo "<script>
|
|
alert('The selected TA is already assigned to this course.');
|
|
window.location.href='Admin.php';
|
|
</script>";
|
|
} else {
|
|
// Proceed with the TA assignment
|
|
$sql = "INSERT INTO course_ta(Course_ID, TA) VALUES ('$id','$ta')";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_Admin_Courses"] = $type . " Course TA Assigned ";
|
|
header("Location: Admin.php");
|
|
} else {
|
|
echo "<script>
|
|
alert('You must select a TA first!.');
|
|
window.location.href='Admin.php';
|
|
</script>";
|
|
}
|
|
}
|
|
}
|
|
|
|
//ACCEPT STUDNTS JOINING COURSSS
|
|
|
|
if (!empty($_GET["AcceptStudent"])) {
|
|
|
|
$id = mysqli_real_escape_string($con, $_GET["id"]);
|
|
$rs = mysqli_real_escape_string($con, $_GET["rs"]);
|
|
|
|
if ($rs == "yes") {
|
|
$sql = "Update course_students_table set Status='Joined' Where ID='$id'";
|
|
} else {
|
|
$sql = "Delete FROM course_students_table Where ID='$id'";
|
|
}
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
|
|
if ($rs == "yes") {
|
|
$_SESSION["info_courses"] = "Course Joining request Approved.";
|
|
} else {
|
|
$_SESSION["info_courses"] = "Course Joining request Declined & Removed.";
|
|
}
|
|
|
|
header("Location: Courses.php");
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
//action=passchange&uid=1&pass=1929
|
|
|
|
if (!empty($_GET["action"])) {
|
|
|
|
$action = $_GET["action"];
|
|
$uid = mysqli_real_escape_string($con, $_GET["uid"]);
|
|
|
|
$pass = mysqli_real_escape_string($con, $_GET["pass"]);
|
|
$pass = password_hash($pass, PASSWORD_DEFAULT);
|
|
|
|
$status = mysqli_real_escape_string($con, $_GET["status"]);
|
|
|
|
// validate uid
|
|
if (intval($uid) < 0) {
|
|
header("Location: index.php");
|
|
return;
|
|
}
|
|
|
|
if ($action == "passchange" && $_SESSION['user_id'] == $uid) {
|
|
$sql = "UPDATE users_table set Password='$pass' where User_ID='$uid';";
|
|
if ($con->query($sql) === TRUE) {
|
|
error_reporting(0);
|
|
echo "Password has been changed";
|
|
//return;
|
|
$_SESSION["infoChangePassword"] = $type . " User password was changed successfully.";
|
|
header("Location: index.php");
|
|
} else {
|
|
// echo "Error: " . $sql . "<br>" . $con->error;
|
|
echo "Something really bad happened while changing password. Contact lanhui at zjnu.edu.cn. Thanks!";
|
|
}
|
|
}
|
|
|
|
if ($action == "statuschange" && $_SESSION['user_id'] == $uid && ($_SESSION['user_type'] == "Lecturer" || $_SESSION['user_type'] == "Admin")) {
|
|
$sql = "UPDATE users_table set Status='$status' where User_ID='$uid';";
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_Admin_Users"] = $type . " user Status updated successfully ";
|
|
header("Location: Admin.php");
|
|
} else {
|
|
// echo "Error: " . $sql . "<br>" . $con->error;
|
|
echo "Something really bad happened while changing status. Contact lanhui at zjnu.edu.cn. Thanks!";
|
|
}
|
|
}
|
|
}
|
|
|
|
// ############################### CREATE STUDENT USER ##################################
|
|
if (!empty($_POST["frm_createCourse"])) {
|
|
$name = mysqli_real_escape_string($con, $_POST["name"]);
|
|
$academic = mysqli_real_escape_string($con, $_POST["academic"]);
|
|
$lecturer = mysqli_real_escape_string($con, $_POST["lecturer"]);
|
|
$ta = mysqli_real_escape_string($con, $_POST["ta"]);
|
|
$faculty = mysqli_real_escape_string($con, $_POST["faculty"]);
|
|
$code = mysqli_real_escape_string($con, $_POST["code"]);
|
|
$url = mysqli_real_escape_string($con, $_POST["url"]);
|
|
$verify = mysqli_real_escape_string($con, $_POST["verify"]);
|
|
$who = mysqli_real_escape_string($con, $_POST["l"]);
|
|
|
|
if ($url == "") {
|
|
$url = $code . $academic;
|
|
}
|
|
|
|
if ($ta == "") {
|
|
$ta = 0;
|
|
}
|
|
|
|
// check if email is taked
|
|
// $result = mysqli_query($con,
|
|
// "SELECT * FROM courses_table WHERE Course_Name='$name'");
|
|
// if(mysqli_num_rows($result)!=0)
|
|
// {
|
|
// $_SESSION["info_Admin_Courses"]="Course Name : ".$name." already used.";
|
|
// header("Location: Admin.php");
|
|
// }
|
|
//
|
|
|
|
$sql = "INSERT INTO `courses_table`(`Course_Name`, `Academic_Year`, `Faculty`, `Lecturer_User_ID`, `TA_User_ID`, `Course_Code`, `URL`, `Verify_New_Members`)
|
|
VALUES ('$name','$academic','$faculty','$lecturer','$ta','$code','$url','$verify')";
|
|
|
|
if ($con->query($sql) === TRUE) {
|
|
$_SESSION["info_Admin_Courses"] = "Course portal was Created successfully.";
|
|
if ($who == "l") {
|
|
header("Location: Courses.php");
|
|
} else {
|
|
header("Location: Admin.php");
|
|
}
|
|
} else {
|
|
echo "Error: " . $sql . "<br>" . $con->error;
|
|
}
|
|
}
|
|
|
|
// Export grade
|
|
|
|
if (!empty($_GET["exportgrade"])) {
|
|
|
|
$lab = mysqli_real_escape_string($con, $_GET["lab"]);
|
|
$lab_name = mysqli_real_escape_string($con, $_GET["lab_name"]);
|
|
|
|
error_reporting(0);
|
|
|
|
$select = "SELECT lab_reports_table.Title as 'LAB_Report', lab_reports_table.Marks as Lab_Marks,
|
|
`Submission_Date`, lab_report_submissions.Student_id, users_table.Full_Name as Student_Name, lab_report_submissions.Marks,`Notes`
|
|
FROM `lab_report_submissions`
|
|
|
|
INNER JOIN lab_reports_table on lab_reports_table.Lab_Report_ID=lab_report_submissions.Lab_Report_ID
|
|
|
|
INNER JOIN users_table on users_table.Student_ID=lab_report_submissions.Student_id
|
|
|
|
WHERE lab_report_submissions.Lab_Report_ID='$lab'";
|
|
|
|
$export = mysqli_query($con, $select);
|
|
|
|
$fields = mysqli_num_fields($export);
|
|
|
|
for ($i = 0; $i < $fields; $i++) {
|
|
$header .= mysqli_fetch_field_direct($export, $i)->name . "\t";
|
|
}
|
|
|
|
while ($row = mysqli_fetch_row($export)) {
|
|
$line = '';
|
|
foreach ($row as $value) {
|
|
if ((!isset($value)) || ($value == "")) {
|
|
$value = "\t";
|
|
} else {
|
|
$value = str_replace('"', '""', $value);
|
|
$value = '"' . $value . '"' . "\t";
|
|
}
|
|
$line .= $value;
|
|
}
|
|
$data .= trim($line) . "\n";
|
|
}
|
|
$data = str_replace("\r", "", $data);
|
|
|
|
if ($data == "") {
|
|
$data = "\n(0) Records Found!\n";
|
|
}
|
|
|
|
header("Content-type: application/octet-stream");
|
|
header("Content-Disposition: attachment; filename=$lab_name Grade Sheet.xls");
|
|
header("Pragma: no-cache");
|
|
header("Expires: 0");
|
|
print "$header\n$data";
|
|
}
|