session.manager.php

<?php
require '_cred.php';

// path of the log file where errors need to be logged
$log_file = "./error.txt";
ini_set('display_errors', 0);
// setting error logging to be active
ini_set("log_errors", TRUE);

// setting the logging file in php.ini
ini_set('error_log', $log_file);


if(isset($_SESSION['malware-repository-state'])){
    switch($_SESSION['malware-repository-state']){
        case 'loggedin':loggedIn($conn); break;
        case 'notloggedin': signin($conn);break;
        case 'signup': signup($conn);break;
        case 'forgot':forgotPassword();break;
        case 'home':nonePage();break;
        case 'category':clearContent($conn);break;
        case 'malware-test':startTest();break;
        default: signin();
    }
}
else{
    $_SESSION['malware-repository-state'] = 'home';
    echo("<script>location.href = './';</script>");
}

if(isset($_GET['page'])) {
    switch ($_GET['page']){
    case 'signup':
            $_SESSION['malware-repository-state'] = 'signup';break;
    case 'signin':
        $_SESSION['malware-repository-state'] = 'notloggedin'; break;
    case 'forgot':
        $_SESSION['malware-repository-state'] = 'forgot';break;
    case 'home':
        $_SESSION['malware-repository-state'] = 'home'; break;
    case 'malware-test':
            $_SESSION['malware-repository-state'] = 'malware-test'; break;
    case 'logout': logout(); break;
    case 'loggedin':
        if( isset($_SESSION['username'])) {
            $_SESSION['malware-repository-state'] = 'loggedin';
        }break;
     break;
    }
    echo("<script>location.href = './';</script>");
}
if(isset($_GET['category'])){
    $_SESSION['malware-repository-state'] = 'category';
    $_SESSION['category'] = $_GET['category'];
    echo("<script>location.href = './';</script>");
}
function loggedIn($conn){
    if (isset($_POST['category-submit']) && isset($_POST['malware-name']) && isset($_SESSION['username'])) {
        $categoryname = $conn->real_escape_string($_POST['malware-name']);
        if(isset($_POST["platforms-affected"]))
        {
            $platforms = "";
            foreach ( $_POST['platforms-affected'] as $plat) {
                $platforms .= $plat." , ";
            }
            $platforms = rtrim($platforms, ', \t\n');
        }
        $definition = $conn->real_escape_string($_POST['malware-definition']);
        $categoryeffects = $conn->real_escape_string($_POST['malware-effects']);
        $categorysigns= $conn->real_escape_string($_POST['malware-signs']);
        $url = str_replace(' ', '-', $categoryname);
        $added_by = $_SESSION['username'];
        $stmt = $conn->prepare("INSERT INTO malware_categories( name_of_category, malware_date_created, malware_date_updated, url_friendly, added_by,effects,signs_and_symptoms,definition,platforms_affected) VALUES (?, NOW(),NOW(), ?,?,?,?,?,?)");
        $stmt->bind_param("sssssss", $categoryname, $url, $added_by,$categoryeffects,$categorysigns,$definition,$platforms);
        if ($stmt->execute()) {
            echo "<div class='alert alert-success alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button>The category has been added successfully</div>";
        } else {
            echo "<div class='alert alert-danger alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button>The category could not be added because an error has occurred. The error has been logged and will be logged at. Please try again later.</div>";
        }
    }
    if (isset($_POST['engine-submit']) && isset($_POST['name_of_engine']) && isset($_SESSION['username'])) {
        $enginename = $conn->real_escape_string($_POST['name_of_engine']);
        $enginetype = $conn->real_escape_string($_POST['malware_engines_type']);
        $engineurl = $conn->real_escape_string($_POST['engine_url']);
        $architecture = $conn->real_escape_string($_POST['architecture']);
        if(isset($_POST["method_of_operation"]))
        {
            $method_of_operation = "";
            foreach ( $_POST['method_of_operation'] as $plat) {
                $method_of_operation .= $plat." , ";
                   }
            $method_of_operation = rtrim($method_of_operation, ', \t\n');
        }
        $added_by = $_SESSION['username'];
        $stmt = $conn->prepare("INSERT INTO malware_engines(malware_engine_name, malware_engines_type, engine_url, date_created, date_updated, architecture, method_of_operation,added_by) VALUES (?, ?,?,NOW(),NOW(),?,?,?)");
        $stmt->bind_param("ssssss", $enginename, $enginetype, $engineurl, $architecture, $method_of_operation,$added_by);
        if ($stmt->execute()) {
            echo "<div class='alert alert-success alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button><b>Success!</b> The Engine has been added successfully</div>";
        } else {
            echo "<div class='alert alert-danger alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button><b>Failed!</b> The Engine could not be added because an error has occurred. The error has been logged and will be logged at. Please try again later.</div>";
        }
    }
    if (isset($_POST['platform-submit']) && isset($_SESSION['username'])) {
        $platformname = $conn->real_escape_string($_POST['platform-name']);
        $platformdeveloper = $conn->real_escape_string($_POST['platform-developer']);
        $platformarchitecture = $conn->real_escape_string($_POST['platform-architecture']);
        $added_by = $_SESSION['username'];
        $stmt = $conn->prepare("INSERT INTO platforms_available(platforms_name, platforms_developer, platforms_available_architecture, added_by,date_created, date_updated) VALUES (?,?,?,?,NOW(),NOW())");
        $stmt->bind_param("ssss", $platformname, $platformdeveloper, $platformarchitecture,$added_by);
        if ($stmt->execute()) {
            echo "<div class='alert alert-success alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button><b>Success!</b>The Engine has been added successfully</div>";
        } else {
            echo "<div class='alert alert-danger alert-dismissible' style='margin: 20px 0'> <button type='button' class='close' data-dismiss='alert'>&times;</button><b>Failed!</b>The Engine could not be added because an error has occurred. The error has been logged and will be logged at. Please try again later.</div>";
        }
    }
    echo "<div class='card' style='margin:20px 0' ><ul class=\"nav nav-pills\">
  <li class=\"nav-item\">
    <a class=\"nav-link  disabled\" href=\"./?page=loggedin\"><b>Dashboard</b></a>
  </li>
  <li class=\"nav-item\" >
    <a class=\"nav-link disabled\" href=\"javascript:void(0)\"><b>|</b></a>
  </li>
  <li class=\"nav-item\">
    <a class=\"nav-link\" href=\"./all-samples.php\"><b>All Samples</b></a>
  </li>
  <li class=\"nav-item\" >
    <a class=\"nav-link disabled\" href=\"javascript:void(0)\"><b>|</b></a>
  </li>
  <li class=\"nav-item float-right\" >
    <a class=\"nav-link\" href=\"./upload-sample.php\"><b>Upload Sample</b></a>
  </li>
  <li class=\"nav-item\" >
    <a class=\"nav-link disabled\" href=\"javascript:void(0)\"><b>|</b></a>
  </li>
  <li class=\"nav-item float-right\" >
    <a class=\"nav-link\" href=\"./malware-test.php\"><b>Malware Troubleshoot</b></a>
  </li>
  
</ul></div>";
echo '<h3 class="text-light" style="margin: 20px 0">Quick Stats <a class="btn btn-primary btn-sm float-right" role="button" href="javascript:void(0)" data-toggle="modal" data-target="#generateReport" data-backdrop="static"><i class="fas fa-download fa-sm text-white-50"></i> Generate Reports</a></h3>
';
require './statistics.php';
    echo'<a class="btn btn-primary btn-sm float-right" role="button" href="javascript:void(0)" data-toggle="modal" data-target="#addCategory" data-backdrop="static"><i class="fas fa-plus fa-sm text-white-50"></i> Add Malware Category</a><h3 class="text-light">Malware Categories</h3>
<div class="row" style="margin: 20px 0">
';
require './malware-categories.php';
echo'</div>
<a class="btn btn-primary btn-sm float-right" role="button" href="javascript:void(0)" data-toggle="modal" data-target="#addEngine" data-backdrop="static"><i class="fas fa-plus fa-sm text-white-50"></i> Add Malware Engine</a>
<h3 class="text-light">Malware Engines </h3>
<div class="row" style="margin: 20px 0">
';
    require './malware-engines.php';
echo '</div>
<a class="btn btn-primary btn-sm float-right" role="button" href="javascript:void(0)" data-toggle="modal" data-target="#addPlatform" data-backdrop="static"><i class="fas fa-plus fa-sm text-white-50"></i> Add New Platform</a>
<h3 class="text-light">Platforms / Operating Systems Available </h3>
<div class="row" style="margin: 20px 0">
';
    require './platform-architecture.php';
echo '</div>
<h3 class="text-light">Live Attack Maps </h3>
<embed width="95%" height="701" src="https://cybermap.kaspersky.com/en/widget/dynamic/dark" frameborder="0">
';
}
function signup($conn){
    if(isset($_POST['register_submit'])){
        // prepare and bind
        $firstname =$_POST["first_name"];
        $lastname =$_POST["last_name"];
        $username =$_POST["user_name"];

        if(isset($_POST["porfolio_link"])){
            $portfolio =$_POST["porfolio_link"];
        }
        else{
            $portfolio=null;
        }
        if(isset($_POST["github_username"])){
            $github_username =$_POST["github_username"];
        }
        else{
            $github_username=null;
        }

        $email =$_POST["email"];
        $password =md5(md5($_POST["password_repeat"]));
        $account_status = null;
        $auth_token = bin2hex(openssl_random_pseudo_bytes(128));
        $fullname = $firstname." ".$lastname;
        $stmt = $conn->prepare("INSERT INTO users(users_name, users_password, users_level, users_username, users_email, users_github, users_portfolio_link, users_account_status, users_auth_token, users_date_joined, user_groups_user_groups_id) VALUES (?, ?, 1,?,?,?,?,?,?,NOW(),1)");
        $stmt->bind_param("ssssssss", $fullname, $password,$username,$email,$github_username,$portfolio,$account_status,$auth_token);


        if($stmt->execute()){
            echo "<div class='alert alert-success' style='margin:20px 0'><b>Success!</b> You have been succesfully signed up! <a href='./?page=signin'>Click me</a> to take you to sign in</div>";
        }
        else{
            echo "<div class='alert alert-danger' style='margin:20px 0' >An error has occured and had been logged.</div>";
            // logging error message to given log file
            error_log($stmt->error);
        }



        $stmt->close();

    }
echo '<div class="card shadow-lg o-hidden border-0 my-5">
            <div class="card-body p-0">
                <div class="row">
                    <div class="col-lg-5 d-none d-lg-flex">
                        <div class="flex-grow-1 bg-register-image" style="background-image: url(&quot;assets/img/dogs/image2.jpeg&quot;);"></div>
                    </div>
                    <div class="col-lg-7">
                        <div class="p-5">
                            <div class="text-center">
                                <h4 class="text-dark mb-4">Create an Account!</h4>
                            </div>
                            <form class="user" method="post" action="" onsubmit="return validateSignup()">
                                <div class="form-group row">
                                    <div class="col-sm-6 mb-3 mb-sm-0"><input class="form-control form-control-user" type="text" id="FirstName" placeholder="First Name" name="first_name" required></div>
                                    <div class="col-sm-6"><input class="form-control form-control-user" type="text" id="LastName" placeholder="Last Name" name="last_name" required></div>
                                </div>
                                <div class="form-group row">
                                    <div class="col-sm-6 mb-3 mb-sm-0"><input class="form-control form-control-user" type="text" autocomplete="preferred-username" id="preferredUsername" placeholder="Preferred Username" name="user_name" required></div>
                                    <div class="col-sm-6"><input class="form-control form-control-user" type="text" id="githubusername" placeholder="Github Username (Optional)" name="github_username"></div>
                                </div>
                                <div class="form-group"><input class="form-control form-control-user" type="url" id="portfolioLink" aria-describedby="emailHelp" placeholder="Preferred Username(Optional)" name="porfolio_link"></div>
                                <div class="form-group"><input class="form-control form-control-user" type="email" id="exampleInputEmail" aria-describedby="emailHelp" placeholder="Email Address" autocomplete="username" name="email" required></div>
                                <div class="form-group row">
                                    <div class="col-sm-6 mb-3 mb-sm-0"><input class="form-control form-control-user" type="password" id="examplePasswordInput" placeholder="Password" autocomplete="new-password" name="password" required></div>
                                    <div class="col-sm-6"><input class="form-control form-control-user" type="password" id="exampleRepeatPasswordInput" placeholder="Repeat Password" autocomplete="repeat-new-password" name="password_repeat" required></div>
                                </div>
                                <span id="password_error_message" class="text-danger" style="margin-bottom: 10px"></span>
                                <button class="btn btn-primary btn-block text-white btn-user" type="submit" name="register_submit"> Register Account</button>
                               
                                <hr>
                            </form>
                            <div class="text-center"><a class="small" href="./?page=forgot">Forgot Password?</a></div>
                            <div class="text-center"><a class="small" href="./?page=signin">Already have an account? Login!</a></div>
                        </div>
                    </div>
                </div>
            </div>
        </div>';
}
function signin($conn){
    if(isset($_POST['signin_submit'])){
        // prepare and bind

        $username =$_POST["email_sign"];
        $password =md5(md5($_POST["password_sign"]));
        $sql = "SELECT * FROM users WHERE (users_username='$username' OR users_email = '$username') AND users_password ='$password';";
        $result = $conn->query($sql);

        if ($result->num_rows > 0) {
            echo "<div class='alert alert-success' style='margin:20px 0'><b>Success!</b> You are being signed in momentarily!</div>";
            $_SESSION['username'] =$username;
            $_SESSION['userimage'] ='avatar1.jpeg';
            echo("<script>location.href = './?page=loggedin';</script>");
            while($row = $result->fetch_assoc()){
                $_SESSION["id"] =$row['id_users'];
            }
        } else {
            echo "<div class='alert alert-danger' style='margin:20px 0'>Unable to sign you in. Have you checked if the credentials are correct?</div>";
        }


    }
echo '<div class="row justify-content-center"><div class="col-md-9 col-lg-12 col-xl-10">
            <div class="card shadow-lg o-hidden border-0 my-5">
                <div class="card-body p-0">
                    <div class="row">
                        <div class="col-lg-6 d-none d-lg-flex">
                            <div class="flex-grow-1 bg-login-image" style="background-image: url(&quot;assets/img/dogs/image3.jpeg&quot;);"></div>
                        </div>
                        <div class="col-lg-6">
                            <div class="p-5">
                                <div class="text-center">
                                    <h4 class="text-dark mb-4">Welcome Back!</h4>
                                </div>
                                <form class="user" method="post" action="">
                                    <div class="form-group"><input class="form-control form-control-user" type="text" autocomplete="username" required id="exampleInputEmail" aria-describedby="emailHelp" placeholder="Email Address or username" name="email_sign"></div>
                                    <div class="form-group"><input class="form-control form-control-user" type="password" autocomplete="current-password" required id="exampleInputPassword" placeholder="Password" name="password_sign"></div>
                                    <div class="form-group">
                                        <div class="custom-control custom-checkbox small">
                                            <div class="form-check"><input class="form-check-input custom-control-input" type="checkbox" id="formCheck-1"><label class="form-check-label custom-control-label" for="formCheck-1">Remember Me</label></div>
                                        </div>
                                    </div><button class="btn btn-primary btn-block text-white btn-user" type="submit" name="signin_submit">Login</button>
                                    <hr>
                                </form>
                                <div class="text-center"><a class="small" href="./?page=forgot">Forgot Password?</a></div>
                                <div class="text-center"><a class="small" href="./?page=signup">Create an Account!</a></div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div></div>';
}
function forgotPassword(){
    echo '<div class="row justify-content-center">
            <div class="col-md-9 col-lg-12 col-xl-10">
                <div class="card shadow-lg o-hidden border-0 my-5">
                    <div class="card-body p-0">
                        <div class="row">
                            <div class="col-lg-6 d-none d-lg-flex">
                                <div class="flex-grow-1 bg-password-image" style="background-image: url(&quot;assets/img/dogs/image1.jpeg&quot;);"></div>
                            </div>
                            <div class="col-lg-6">
                                <div class="p-5">
                                    <div class="text-center">
                                        <h4 class="text-dark mb-2">Forgot Your Password?</h4>
                                        <p class="mb-4">We get it, stuff happens. Just enter your email address below and we\'ll send you a link to reset your password!</p>
                                    </div>
                                    <form class="user">
                                        <div class="form-group"><input class="form-control form-control-user" type="email" id="exampleInputEmail" aria-describedby="emailHelp" placeholder="Enter Email Address..." name="email"></div><button class="btn btn-primary btn-block text-white btn-user"
                                            type="submit">Reset Password</button></form>
                                    <div class="text-center">
                                        <hr><a class="small" href="./?page=signup">Create an Account!</a></div>
                                    <div class="text-center"><a class="small" href="./?page=signin">Already have an account? Login!</a></div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>';
}
function nonePage(){
    echo '<div class="row">
<div class="row justify-content-center">
            <div class="col-md-12 col-lg-12 col-xl-12" style="margin: 20px">
            <div class="alert alert-danger"><strong>Danger ahead!</strong> All samples are live! If you don\'t know
             how to handle the files you are about to download, kindly don\'t download. You might infect your devices 
             or network which can lead to catastrophic results</div>
            <div class="card card-3" style="position: relative;">
            <img src="./assets/img/background.jpg" class="img-fluid"/>
            <div style="position: absolute; top: 8px; right: 16px; font-size: 18px; ">Malware hides in plain sight</div>
            </div>
            </div>
            </div>
<div class="col-md-6 col-lg-6 col-xl-6" style="margin: 20px 0" >
<div class="card card-3">
    <div class="card-body">
        <h4 class="card-title">Are you infested with malware?</h4>
        <h6 class="text-muted card-subtitle mb-2">Easy step by step discovery.</h6>
        <p class="card-text">Our Application allows you to discover if your computer is infested with Malware or a Hardware issue. Sometimes it is hard to distinguish between hardware
        failures or hardware bottlenecks that can result to your system acting up and slowing down.</p>
        <a class="card-link" href="./malware-test.php">Start Now</a><a href ="#demo" class="card-link" data-toggle="collapse" data-target="#demo">Learn More</a></div>
        <p class="collapse" id="demo" style="padding: 10px; margin-left: 10px" >With out stop at any time questionarre, we will calculate the probailtiy of
        an issue affecting you being malware or a hardware issue. It is recommended that you do as many questions as possinle
        to increase the accuracy and increase the probability of getting the cause.</p>
</div></div>
<div class="col-md-6 col-lg-6 col-xl-6" style="margin: 20px 0">
<div class="card card-3">
    <div class="card-body">
        <h4 class="card-title">Download Malware Samples</h4>
        <h6 class="text-muted card-subtitle mb-2">Easy to download and set up</h6>
        <p class="card-text">Once you log in, you can easily download and extract Malware Samples.</p>
        <p class="text-danger card-text"><strong>Samples are purely for research and academic purposes only.</strong></p>
        <a class="card-link" href="./all-samples.php">Download Now</a><a href ="#download-desc" class="card-link" data-toggle="collapse" data-target="#download-desc">Learn More</a></div>
        <p class="collapse" id="download-desc" style="padding: 10px; margin-left: 10px" >The purpose of the Malware Repository is to allow for the study of 
        malware and enable people who are interested in malware analysis (or maybe even as a part of their job) to have 
        access to live malware, analyse the ways they operate, and maybe even enable advanced and savvy people to block 
        specific malware within their own environment. <br>
        It is recommended to run the samples in a Virtual Machine which has no internet connection (or an internal virtual network if you must) 
        and without guest additions or any equivalents. Some of them are worms and will automatically try to spread out. 
        Running them unconstrained means that you will infect yourself or others with vicious and dangerous malware. Take 
        extreme caution when handling these samples.
        </p>
</div></div>
</div>
<div class="row">
<div class="col-md-6 col-lg-6 col-xl-6" style="margin: 20px 0">
<div class="card card-3">
    <div class="card-body">
        <h4 class="card-title">Upload Malware Samples</h4>
        <h6 class="text-muted card-subtitle mb-2">Sharing is caring.</h6>
        <p class="card-text">
        Uploading malware samples assists the community to research on the Malware and come up with better engines to 
        curb malware, detect them and come up with smarter ways of detecting and handling Malware.
</p><a class="card-link" href="./upload-sample.php">Upload Now</a><a href ="#upload-desc" class="card-link" data-toggle="collapse" data-target="#upload-desc">Learn More</a></div>
        <p class="collapse" id="upload-desc" style="padding: 10px; margin-left: 10px" >Feel free to create a malware sample and share
        with the community to allow the community research on Malware so as to enhance the security of applications and platforms. An sample sourced 
        and uploaded will be appreciated to help the community grow. Follow the procedure to upload the samples in a safe and recommended method. All samples are
        uploaded as ZIP files and are locked with a password and encrypted to safely store and share them for sampling.
        </p>
</div></div>
<div class="col-md-6 col-lg-6 col-xl-6" style="margin: 20px 0">
<div class="card card-3">
    <div class="card-body">
        <h4 class="card-title">Collaborate and Share information.</h4>
        <h6 class="text-muted card-subtitle mb-2">Share important information with the community</h6>
        <p class="card-text">
        The vastness of knowledge and information is unmatched. Any information shared helps the community grow and helps
        better understand Malware for all users in the community.
</p><a class="card-link" href="#">Learn More</a></div>
</div></div>
</div>
<div class="row">
<div class="col-md-6 col-lg-6 col-xl-6" style="margin: 20px 0">
<div class="card card-3">
    <div class="card-body">
        <h4 class="card-title">Download the Android app</h4>
        <h6 class="text-muted card-subtitle mb-2">Easier and fast to access.</h6>
        <p class="card-text">
        Get the android app that will allow you to access the repository much easier and faster than typing urls to access the repository.
</p><a class="card-link" href="./app/app.apk" download>Download Now</a>
</div></div>
</div>';
}
function logout(){
    session_destroy();
}
function clearContent($conn){
  $category = $_SESSION["category"];
    $sql = "SELECT * FROM malware_categories WHERE url_friendly='$category'";
    $result = $conn->query($sql);

    if ($result->num_rows > 0) {
        // output data of each row
        while($row = $result->fetch_assoc()) {
            $categ_id = $row["id_malware_categories"];
            echo "<div class='card' style='margin:20px 0' ><ul class=\"nav nav-pills\">
  <li class=\"nav-item\">
    <a class=\"nav-link\" href=\"./?page=loggedin\">Dashboard</a>
  </li>
  <li class=\"nav-item\" style='margin-left: -20px'>
    <a class=\"nav-link disabled\" href=\"#\">|</a>
  </li>
  <li class=\"nav-item\" style='margin-left: -20px'>
    <a class=\"nav-link disabled\" href=\"#\"><b>" . $row["name_of_category"]. "</b></a>
  </li>
</ul></div>
<div style='margin:20px 0' class='card'><div class='card-body'>
<h3>" . $row["name_of_category"]. "</h3>
<hr>
<div class=\"row \" style='margin:40px 0'>
<div class='border-left-warning' id='definition'>
<blockquote class='blockquote' style='padding-left:10px;'>
" . $row["definition"]. "
</blockquote>
</div>
</div>
<h4>Effects on Devices</h4>
<div class=\"row \" style='margin:20px 0'>
<div id='effects'>
" . $row["effects"]. "
</div>
</div>
<h4>Signs and Symptoms of infection</h4>
<div class=\"row \" style='margin:20px 0'>
<div id='samples'>
" . $row["signs_and_symptoms"]. "
</div>
</div>
<h4>Malware Engines</h4>
<div class=\"row \" style='margin:20px 0'>
<div id='samples'>
This is the malware engine that are mainly in that category
</div>
</div>
<h4>Platforms Affected</h4>
<div class=\"row \" style='margin:20px 0'>
<div id='samples'>
".$row['platforms_affected']."
</div>
</div>
<h4>Samples</h4>
<div class=\"row \" style='margin:20px 0'>
<div class='card-deck' id='samples' style='padding-left:10px;'>";
            $sqlsample = "SELECT * FROM malware_samples WHERE category_malware='$categ_id'";
            $result_sample= $conn->query($sqlsample);

            if ($result_sample->num_rows > 0) {
                // output data of each row
                while($row_sample = $result_sample->fetch_assoc()) {
                    echo '<div class="card shadow border-left-danger py-2">
                <div class="card-body">
                    <div class="row align-items-center no-gutters">
                        <div class="col mr-2">
                            <div class="text-uppercase text-danger font-weight-bold text-xs mb-1"><span>'.$row["name_of_category"].'</span></div>
                            <div class="text-dark font-weight-bold h5 mb-0"><span>'.$row_sample['malware_name'].'</span></div><br>
                            <a href="'.$row_sample['url_file'].'" download><i class="fas fa-download"></i> Download</a>&nbsp;&nbsp;
                            <a href="javascript:void(0)"><i class="fas fa-arrow-right"></i> Details</a>
                        </div>
                        <div class="col-auto"><i class="fas fa-bug fa-2x text-gray-300"></i></div>
                    </div>
                </div>
            </div>';
                }
            } else {
                echo "<span class='text-danger'>No sample has been uploaded yet</span>";
            }
echo "</div>
</div>
</div></div>";
        }
    } else {
        echo "<div style='margin:20px 0' class='card'><div class='card-body'>
<h3 class='text-danger'>❌ Category doesn't exist</h3>
<hr>
<div class=\"row \" style='margin:40px 0'>
Unfortunately we could not find the requested Category. Please refresh or click&nbsp;<a href='./?page=home'>here</a>&nbsp;to go back home.
</div>
</div>
";
    }
    $conn->close();
}
function startTest(){
    echo 'Test Code';
}