Add contact form with spam protection
Add social media links to contact page Move history content to dedicated page Add SMTP configuration file Update frontpage link styling
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Ruben
parent
b3cefcdc57
commit
c013c2cde3
9 changed files with 403 additions and 17 deletions
263
content/kontakt/01-kontaktskjema.php
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263
content/kontakt/01-kontaktskjema.php
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<?php
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// Contact form processing with spam prevention
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$formSubmitted = false;
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$formSuccess = false;
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$formErrors = [];
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$formData = ['name' => '', 'email' => '', 'message' => ''];
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// Process form submission
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if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['contact_form_submit'])) {
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$formSubmitted = true;
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// Spam Prevention 1: Honeypot field (should be empty)
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if (!empty($_POST['website'])) {
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$formErrors[] = 'Spam detected.';
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}
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// Spam Prevention 2: Time-based check (form must be visible for at least 3 seconds)
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$formStartTime = isset($_POST['form_start_time']) ? (int)$_POST['form_start_time'] : 0;
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$timeDiff = time() - $formStartTime;
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if ($timeDiff < 3) {
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$formErrors[] = 'Form submitted too quickly.';
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}
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// Spam Prevention 3: Referrer check (only if referrer is present and clearly from different domain)
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if (!empty($_SERVER['HTTP_REFERER'])) {
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$referrer = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST);
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$currentHost = $_SERVER['HTTP_HOST'];
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// Only block if referrer exists and doesn't match (allows empty referrer for privacy browsers)
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if ($referrer && $referrer !== $currentHost && $referrer !== 'localhost') {
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$formErrors[] = 'Invalid form submission.';
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}
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}
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// Spam Prevention 4: Rate limiting (session-based)
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if (session_status() === PHP_SESSION_NONE) {
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session_start();
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}
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$lastSubmitTime = isset($_SESSION['last_contact_submit']) ? $_SESSION['last_contact_submit'] : 0;
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if (time() - $lastSubmitTime < 60) {
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$formErrors[] = 'Vennligst vent litt før du sender inn igjen.';
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}
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// Get and sanitize form data
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$formData['name'] = trim($_POST['name'] ?? '');
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$formData['email'] = trim($_POST['email'] ?? '');
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// Normalize line endings in message (convert \r\n to \n)
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$formData['message'] = trim(str_replace("\r\n", "\n", $_POST['message'] ?? ''));
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// Validation
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if (empty($formData['name'])) {
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$formErrors[] = 'Vennligst oppgi navn.';
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} elseif (strlen($formData['name']) > 100) {
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$formErrors[] = 'Navnet er for langt.';
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}
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if (empty($formData['email'])) {
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$formErrors[] = 'Vennligst oppgi e-postadresse.';
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} elseif (!filter_var($formData['email'], FILTER_VALIDATE_EMAIL)) {
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$formErrors[] = 'Ugyldig e-postadresse.';
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} elseif (strlen($formData['email']) > 100) {
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$formErrors[] = 'E-postadressen er for lang.';
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}
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if (empty($formData['message'])) {
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$formErrors[] = 'Vennligst skriv en melding.';
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} elseif (strlen($formData['message']) < 10) {
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$formErrors[] = 'Meldingen er for kort (minimum 10 tegn).';
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} elseif (strlen($formData['message']) > 5000) {
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$formErrors[] = 'Meldingen er for lang (maksimum 5000 tegn).';
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}
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// Spam Prevention 5: Check for suspicious patterns
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$spamPatterns = [
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'/\[url=/i',
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'/\[link=/i',
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'/<a href=/i',
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'/viagra|cialis|casino|poker|lottery/i',
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'/http.*http.*http/i', // Multiple URLs
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];
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$fullText = $formData['name'] . ' ' . $formData['email'] . ' ' . $formData['message'];
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foreach ($spamPatterns as $pattern) {
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if (preg_match($pattern, $fullText)) {
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$formErrors[] = 'Meldingen inneholder ikke tillatt innhold.';
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break;
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}
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}
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// If no errors, send email
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if (empty($formErrors)) {
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// Load SMTP configuration
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$smtpConfig = require __DIR__ . '/../../custom/smtp-config.php';
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// Prepare email body
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$emailBody = "Ny henvendelse fra kontaktskjemaet på stopplidelsen.no\n\n";
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$emailBody .= "Navn: " . $formData['name'] . "\n";
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$emailBody .= "E-post: " . $formData['email'] . "\n";
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$emailBody .= "IP-adresse: " . $_SERVER['REMOTE_ADDR'] . "\n";
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$emailBody .= "Tidspunkt: " . date('Y-m-d H:i:s') . "\n\n";
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$emailBody .= "Melding:\n" . $formData['message'] . "\n";
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$mailSent = false;
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// Try PHPMailer.Lite if SMTP is configured
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if ($smtpConfig['enabled']) {
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// Pre-flight check: Test SMTP connection before attempting to send
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$smtpConnectable = false;
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$fp = @fsockopen($smtpConfig['host'], $smtpConfig['port'], $errno, $errstr, 10);
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if ($fp) {
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// Successfully connected
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$smtpConnectable = true;
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fclose($fp);
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} else {
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error_log("SMTP Pre-flight check failed: Cannot connect to {$smtpConfig['host']}:{$smtpConfig['port']} - Error: $errno - $errstr");
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$formErrors[] = 'Det oppstod en feil ved sending av meldingen. Vennligst prøv igjen senere.';
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}
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if ($smtpConnectable) {
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try {
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require_once __DIR__ . '/../../custom/vendor/PHPMailer.Lite.php';
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$mail = new \codeworxtech\PHPMailerLite\PHPMailerLite();
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// Enable debug output in development
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// $mail->debug = 1; // Uncomment to see SMTP debug output
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$mail->SetSMTPhost($smtpConfig['host']);
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$mail->SetSMTPport($smtpConfig['port']);
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$mail->SetSMTPuser($smtpConfig['username']);
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$mail->SetSMTPpass($smtpConfig['password']);
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$mail->SetSender([$smtpConfig['from_email'] => $smtpConfig['from_name']]);
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$mail->AddRecipient([$smtpConfig['to_email'] => $smtpConfig['to_name']]);
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$mail->AddReplyTo([$formData['email'] => $formData['name']]);
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$mail->SetSubject('Ny henvendelse fra kontaktskjema');
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$mail->SetBodyText($emailBody);
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// Capture any output from PHPMailer.Lite (it might exit() on error)
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ob_start();
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$mailSent = @$mail->Send('smtp');
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$smtpOutput = ob_get_clean();
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// Check if there was an error in the output
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if (!$mailSent || stripos($smtpOutput, 'error') !== false || stripos($smtpOutput, '✗') !== false) {
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$mailSent = false;
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error_log("SMTP Send failed. Output: " . strip_tags($smtpOutput));
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$formErrors[] = 'Det oppstod en feil ved sending av meldingen. Vennligst prøv igjen senere.';
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}
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} catch (\Exception $e) {
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$mailSent = false;
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error_log("PHPMailer Exception: " . $e->getMessage());
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$formErrors[] = 'Det oppstod en feil ved sending av meldingen. Vennligst prøv igjen senere.';
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}
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}
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} else {
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// Fallback to native mail() function
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$headers = "From: kontaktskjema@stopplidelsen.no\r\n";
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$headers .= "Reply-To: " . $formData['email'] . "\r\n";
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$headers .= "X-Mailer: PHP/" . phpversion() . "\r\n";
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$headers .= "Content-Type: text/plain; charset=UTF-8\r\n";
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$mailSent = mail('ruben@stopplidelsen.no', 'Ny henvendelse fra kontaktskjema', $emailBody, $headers);
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}
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if ($mailSent) {
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$formSuccess = true;
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$_SESSION['last_contact_submit'] = time();
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// Clear form data on success
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$formData = ['name' => '', 'email' => '', 'message' => ''];
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} else {
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if (empty($formErrors)) {
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$formErrors[] = 'Det oppstod en feil ved sending av meldingen. Vennligst prøv igjen senere.';
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}
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}
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}
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}
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// Generate form start time token
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$currentTime = time();
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?>
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<article class="contain">
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<h2>Kontaktskjema</h2>
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<p>Har du spørsmål, innspill eller ønsker å delta i arbeidet vårt? Fyll ut skjemaet nedenfor! Men husk at det kan ta tid før du får svar, vi er ikke så mange og driver alt på frivillig basis.</p>
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<section class="contact-form">
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<?php if ($formSuccess): ?>
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<div class="form-success">
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<p><strong>Takk for din henvendelse!</strong></p>
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<p>Vi har mottatt meldingen din og vil svare så snart som mulig.</p>
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</div>
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<?php endif; ?>
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<?php if (!empty($formErrors)): ?>
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<div class="form-errors">
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<p><strong>Vennligst rett opp følgende:</strong></p>
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<ul>
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<?php foreach ($formErrors as $error): ?>
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<li><?= htmlspecialchars($error) ?></li>
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<?php endforeach; ?>
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</ul>
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</div>
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<?php endif; ?>
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<?php if (!$formSuccess): ?>
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<form method="post" action="<?= htmlspecialchars($_SERVER['REQUEST_URI']) ?>" class="contact-form-inner">
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<!-- Honeypot field (hidden from users, bots will fill it) -->
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<div style="position: absolute; left: -5000px;" aria-hidden="true">
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<label for="website">Website</label>
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<input type="text" id="website" name="website" tabindex="-1" autocomplete="off">
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</div>
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<!-- Time-based token -->
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<input type="hidden" name="form_start_time" value="<?= $currentTime ?>">
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<div class="form-group">
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<label for="contact_name">Navn <span class="required">*</span></label>
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<input
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type="text"
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id="contact_name"
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name="name"
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value="<?= htmlspecialchars($formData['name']) ?>"
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required
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maxlength="100"
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>
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</div>
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<div class="form-group">
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<label for="contact_email">E-postadresse <span class="required">*</span></label>
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<input
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type="email"
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id="contact_email"
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name="email"
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value="<?= htmlspecialchars($formData['email']) ?>"
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required
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maxlength="100"
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>
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</div>
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<div class="form-group">
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<label for="contact_message">Melding <span class="required">*</span></label>
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<textarea
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id="contact_message"
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name="message"
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rows="8"
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required
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minlength="10"
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maxlength="5000"
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><?= htmlspecialchars($formData['message']) ?></textarea>
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<small>Minimum 10 tegn, maksimum 5000 tegn.</small>
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</div>
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<div class="form-group">
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<button type="submit" name="contact_form_submit" class="button">Send melding</button>
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</div>
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</form>
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<?php endif; ?>
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</section>
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</article>
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