first commit

similverifica/includes/footer.php

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+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"
+        integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz"
+        crossorigin="anonymous"></script>
+<script>
+    Fancybox.bind("[data-fancybox]", {
+        // Your custom options
+    });
+</script>

similverifica/includes/head.php

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+<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet"
+      integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
+<script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui@5.0/dist/fancybox/fancybox.umd.js"></script>
+<link
+        rel="stylesheet"
+        href="https://cdn.jsdelivr.net/npm/@fancyapps/ui@5.0/dist/fancybox/fancybox.css"
+/>

similverifica/includes/navbar.php

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+<nav class="navbar navbar-expand-lg bg-light">
+    <div class="container-fluid">
+        <a class="navbar-brand" href="#">Facebook 2</a>
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent"
+                aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+        <div class="collapse navbar-collapse" id="navbarSupportedContent">
+            <ul class="navbar-nav me-auto mb-2 mb-lg-0">
+                <li class="nav-item">
+                    <a class="nav-link active" aria-current="page" href="home.php">Home</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="amici.php">Amici</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="foto.php">Foto</a>
+                </li>
+                <li class="nav-item d-flex me-2">
+                    <a class="nav-link" href="logout.php">Logout</a>
+                </li>
+                <?php
+                if (isset($_SESSION['admin']) && $_SESSION['admin']) {
+                    echo '<li class="nav-item">
+                            <a class="nav-link" href="upload.php">Admin</a>
+                         </li>';
+                }
+                ?>
+            </ul>
+        </div>
+    </div>
+</nav>

similverifica/includes/security.php

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+<?php
+session_start();
+$votes = json_decode(file_get_contents("votes.json"), true);
+function checkPost()
+{
+    if (empty($_POST["nome"]) || empty($_POST["code"]) || empty($_POST["film"]) || empty($_POST["voto"])) {
+        $_SESSION["error"] = true;
+        header("Location: login.php");
+        exit();
+    }
+
+    if (trim($_POST["code"]) !== "a123") {
+        $_SESSION["error"] = true;
+        header("Location: login.php");
+        exit();
+    }
+}
+
+function checkSession()
+{
+    if (empty($_SESSION["nome"]) || empty($_SESSION["code"]) || empty($_SESSION["film"]) || empty($_SESSION["voto"])) {
+        $_SESSION["error"] = true;
+        header("Location: login.php");
+        exit();
+    }
+}
+
+function checkHasVoted()
+{
+    if (isset($_COOKIE["hasVoted"]) && $_COOKIE["hasVoted"]) {
+        $_SESSION["error"] = true;
+        return false;
+    }
+    return true;
+}
+
+function addVote($film, $vote)
+{
+    global $votes;
+    $votes[$film] += $vote;
+    file_put_contents("votes.json", json_encode($votes));
+}