second commit

similverifica_votazioni_atleti/includes/security.php

@@ -0,0 +1,42 @@
+<?php
+session_start();
+function checkPost()
+{
+    unset($_SESSION["error"]);
+
+    if (empty($_POST["nome"]) || empty($_POST["eta"]) || empty($_POST["sesso"])) {
+        $_SESSION["error"] = "Dati mancanti";
+    }
+
+    if ($_POST["eta"] < 18) {
+        $_SESSION["error"] = "Devi avere 18 anni per entrare";
+    }
+
+    header("Location: login.php");
+    exit();
+}
+
+function checkSession()
+{
+    if (empty($_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));
+}