118 lines
4.5 KiB
PHP
118 lines
4.5 KiB
PHP
<?php
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// Pour le bon fonctionnement du script, mettre session_start(); au tout début de la page de contact, avant tout autre chose, avant le code html. Sinon la suite ne fonctionnera pas.
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// Générer ou récupérer le token CSRF
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if (empty($_SESSION['csrf_token'])) {
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$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
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}
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// Charger la configuration et les traductions
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$config = include('form_config.php');
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include 'form_lang.php';
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// Fonction pour échapper les données
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function escape($data) {
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return htmlspecialchars($data, ENT_QUOTES, 'UTF-8');
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}
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// Fonction pour envoyer un mail avec msmtp
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$account = $config['account_msmtp'];
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function msmtp_send($to, $subject, $message, $headers, $account) {
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$emailContent = "To: $to\nSubject: $subject\n$headers\n\n$message\n";
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$cmd = "echo " . escapeshellarg($emailContent) . " | msmtp --account=$account $to 2>&1";
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exec($cmd, $output, $returnVar);
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return $returnVar === 0;
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}
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// Vérifier l'action soumise
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$action = isset($_POST['action']) ? $_POST['action'] : '';
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// Générer ou récupérer la question antispam
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if ($action === 'new_question' || !isset($_SESSION['current_question'])) {
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// Choisir une nouvelle question aléatoire
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$questions_list = array_keys($txt['questions']);
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$current_question = $questions_list[array_rand($questions_list)];
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$correct_answers = $txt['questions'][$current_question];
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// Mettre à jour la session avec la question et les réponses acceptées
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$_SESSION['current_question'] = $current_question;
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$_SESSION['correct_answers'] = $correct_answers;
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} else {
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// Utiliser la question stockée dans la session
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$current_question = $_SESSION['current_question'];
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$correct_answers = $_SESSION['correct_answers'];
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}
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// Vérification de l'envoi du formulaire
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$try = isset($_POST['try']) ? $_POST['try'] : '';
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$nobotv = isset($_POST['nobotv']) ? $_POST['nobotv'] : '';
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$nobotc = isset($_POST['nobotc']) ? $_POST['nobotc'] : '';
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$nobots = isset($_POST['nobots']) ? $_POST['nobots'] : '';
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$nobot = time() . '_' . rand(50000, 60000);
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if ($action === 'submit_form' && $try === 'send') {
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// Vérifier le token CSRF
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if (!isset($_POST['csrf_token']) || $_POST['csrf_token'] !== $_SESSION['csrf_token']) {
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echo "<span class=\"spam\">" . $txt['csrf_error'] . "</span>";
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return;
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}
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// Vérifications anti-spam
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if (($nobotc != md5($nobotv)) || empty($nobotv) || !empty($nobots)) {
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echo "<span class=\"spam\">" . $txt['antispam_error'] . "</span>";
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return;
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}
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// Traitement des données du formulaire
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if ($_SERVER["REQUEST_METHOD"] === "POST") {
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$name = strip_tags(trim($_POST["name"]));
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$email = filter_var(trim($_POST["email"]), FILTER_VALIDATE_EMAIL);
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$subject = strip_tags(trim($_POST["subject"]));
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$message = strip_tags(trim($_POST["message"]));
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$user_answer = isset($_POST['answer']) ? trim($_POST['answer']) : '';
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// Validation des champs obligatoires
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if (empty($name) || empty($email) || empty($subject) || empty($message) || empty($user_answer)) {
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echo "<span class=\"spam\">" . $txt['required_fields'] . "</span>";
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return;
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}
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// Vérifier la présence de liens
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if (preg_match('/http(s?):\/\//i', $message)) {
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echo "<span class=\"spam\">" . $txt['link_error'] . "</span>";
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return;
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}
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// Vérifier les mots interdits
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$bad_words = $config['bad_words'];
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foreach ($bad_words as $bad) {
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if (stripos($message, $bad) !== false) {
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echo "<span class=\"spam\">" . $txt['bad_word_error'] . "</span>";
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return;
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}
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}
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// Vérification de la réponse anti-spam
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if (!empty($user_answer) && in_array(strtolower($user_answer), array_map('strtolower', $correct_answers))) {
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echo $txt['good_answer'];
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// Réinitialiser la session pour la question
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unset($_SESSION['current_question']);
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unset($_SESSION['correct_answers']);
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// Préparer l'envoi de l'email
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$to = $config['email'];
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$subject_prefix = $config['subject_prefix'];
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$subjectreal = "$subject_prefix : $subject";
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$headers = "From: $name <$email>";
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if (msmtp_send($to, $subjectreal, $message, $headers, $account)) {
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echo $txt['email_success'];
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} else {
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echo $txt['email_error'];
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}
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} else {
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echo "<span class=\"spam\">" . $txt['bad_answer'] . "</span>";
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}
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}
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}
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?>
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