680 lines
23 KiB
PHP
680 lines
23 KiB
PHP
<?php
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/***************************************************************
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* Einseiten-Anwendung (index.php) für eine Linkliste
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* mit folgenden Features:
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*
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* - Login/Logout (User admin, PW gradio)
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* - JSON-Datenspeicherung
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* - Suchfunktion
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* - Klickzähler (Links)
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* - Favoriten (Toggle)
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* - Voting-System (Up-/Downvote -> Score)
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* - Optionales Vorschaubild (YouTube-Icon bei youtube.com)
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* - Optionales Hintergrundbild (konfigurierbar)
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***************************************************************/
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session_start();
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// ---------------------- Konfiguration -------------------------
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// Beispiel-Nutzer (Benutzername: admin / Passwort: gradio)
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$USER_CREDENTIALS = [
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'admin' => 'gradio'
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];
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// Dateiname, in dem unsere Links gespeichert werden
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$LINKS_FILE = __DIR__ . '/links.json';
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// Optionales Hintergrundbild (leer lassen, falls kein Hintergrundbild)
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$BACKGROUND_IMAGE = "";
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// Beispiel: $BACKGROUND_IMAGE = "https://via.placeholder.com/1200x800/404040/FFFFFF?text=Background";
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// ---------------------- Hilfsfunktionen -----------------------
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/**
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* Lädt die Linkliste aus dem JSON-File
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*
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* @return array
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*/
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function loadLinks($file)
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{
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if (!file_exists($file)) {
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return [];
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}
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$jsonData = file_get_contents($file);
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return json_decode($jsonData, true) ?? [];
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}
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/**
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* Schreibt die Linkliste in das JSON-File
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*
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* @param array $linksArray
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* @param string $file
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*/
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function saveLinks($linksArray, $file)
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{
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file_put_contents($file, json_encode($linksArray, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
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}
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/**
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* Prüft, ob ein Nutzer eingeloggt ist.
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*
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* @return bool
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*/
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function isLoggedIn()
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{
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return isset($_SESSION['username']);
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}
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// ---------------------- Login/Logout-Prozess ------------------
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if (isset($_POST['action']) && $_POST['action'] === 'login') {
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// Login-Formular wurde abgeschickt
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$username = trim($_POST['username'] ?? '');
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$password = trim($_POST['password'] ?? '');
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global $USER_CREDENTIALS;
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if (array_key_exists($username, $USER_CREDENTIALS) &&
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$USER_CREDENTIALS[$username] === $password
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) {
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$_SESSION['username'] = $username;
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} else {
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$loginError = 'Falscher Benutzername oder Passwort!';
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}
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} elseif (isset($_POST['action']) && $_POST['action'] === 'logout') {
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// Logout
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session_destroy();
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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// ---------------------- Link-Management -----------------------
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$links = loadLinks($LINKS_FILE);
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// Falls wir per GET "go" einen Link aufrufen, Klickzähler erhöhen und weiterleiten
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if (isset($_GET['go'])) {
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$goIndex = intval($_GET['go']);
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if (isset($links[$goIndex])) {
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// Klickzähler um 1 erhöhen
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$links[$goIndex]['clicks'] = ($links[$goIndex]['clicks'] ?? 0) + 1;
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saveLinks($links, $LINKS_FILE);
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// Weiterleitung zum tatsächlichen Ziel
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header("Location: " . $links[$goIndex]['url']);
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exit;
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}
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}
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// Link hinzufügen/bearbeiten/löschen/favorisieren/voten nur, wenn eingeloggt
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if (isLoggedIn()) {
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// Link hinzufügen
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if (isset($_POST['action']) && $_POST['action'] === 'add_link') {
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$newTitle = trim($_POST['title'] ?? '');
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$newUrl = trim($_POST['url'] ?? '');
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$newImgUrl = trim($_POST['image'] ?? '');
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if ($newTitle !== '' && $newUrl !== '') {
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$links[] = [
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'title' => $newTitle,
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'url' => $newUrl,
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'image' => $newImgUrl,
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'clicks' => 0,
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'favorite' => false,
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'score' => 0 // neu fürs Voting
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];
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saveLinks($links, $LINKS_FILE);
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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}
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// Link bearbeiten
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if (isset($_POST['action']) && $_POST['action'] === 'edit_link') {
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$editIndex = intval($_POST['index'] ?? -1);
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$editTitle = trim($_POST['title'] ?? '');
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$editUrl = trim($_POST['url'] ?? '');
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$editImg = trim($_POST['image'] ?? '');
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if ($editIndex >= 0 && isset($links[$editIndex])) {
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$links[$editIndex]['title'] = $editTitle;
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$links[$editIndex]['url'] = $editUrl;
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$links[$editIndex]['image'] = $editImg;
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// Sicherstellen, dass Klickzähler, Favoriten, Score ex. sind
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$links[$editIndex]['clicks'] = $links[$editIndex]['clicks'] ?? 0;
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$links[$editIndex]['favorite'] = $links[$editIndex]['favorite'] ?? false;
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$links[$editIndex]['score'] = $links[$editIndex]['score'] ?? 0;
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saveLinks($links, $LINKS_FILE);
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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}
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// Link löschen
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if (isset($_POST['action']) && $_POST['action'] === 'delete_link') {
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$deleteIndex = intval($_POST['index'] ?? -1);
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if ($deleteIndex >= 0 && isset($links[$deleteIndex])) {
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array_splice($links, $deleteIndex, 1);
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saveLinks($links, $LINKS_FILE);
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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}
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// Favorit toggeln
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if (isset($_POST['action']) && $_POST['action'] === 'toggle_fav') {
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$favIndex = intval($_POST['index'] ?? -1);
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if ($favIndex >= 0 && isset($links[$favIndex])) {
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$isFav = $links[$favIndex]['favorite'] ?? false;
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$links[$favIndex]['favorite'] = !$isFav;
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saveLinks($links, $LINKS_FILE);
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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}
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// Voting Up/Down
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if (isset($_POST['action']) && in_array($_POST['action'], ['vote_up', 'vote_down'])) {
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$voteIndex = intval($_POST['index'] ?? -1);
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if ($voteIndex >= 0 && isset($links[$voteIndex])) {
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$links[$voteIndex]['score'] = $links[$voteIndex]['score'] ?? 0;
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if ($_POST['action'] === 'vote_up') {
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$links[$voteIndex]['score']++;
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} else {
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$links[$voteIndex]['score']--;
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}
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saveLinks($links, $LINKS_FILE);
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header("Location: {$_SERVER['PHP_SELF']}");
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exit;
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}
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}
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}
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// ---------------------- Suchfunktion (für alle User) ----------
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$searchQuery = trim($_GET['search'] ?? '');
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// Links filtern (Titel oder URL enthalten den Suchbegriff)
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$filteredLinks = array_filter($links, function($link) use ($searchQuery) {
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if ($searchQuery === '') return true; // Nichts gesucht -> Alle Links
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return (stripos($link['title'], $searchQuery) !== false ||
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stripos($link['url'], $searchQuery) !== false);
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});
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?>
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<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Amateurfunk-Linkliste</title>
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<style>
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/* -------- Reset -------- */
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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/* -------- Hintergrundbild optional -------- */
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<?php if (!empty($BACKGROUND_IMAGE)): ?>
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body {
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font-family: Arial, sans-serif;
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background: url('<?php echo $BACKGROUND_IMAGE; ?>')
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no-repeat center center fixed;
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background-size: cover;
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color: #f0f0f0;
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padding: 20px;
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}
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<?php else: ?>
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body {
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font-family: Arial, sans-serif;
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background: #303030; /* Einfacher Hintergrund */
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color: #f0f0f0;
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padding: 20px;
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}
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<?php endif; ?>
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.container {
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max-width: 700px;
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margin: 0 auto;
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background-color: rgba(0, 0, 0, 0.65);
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padding: 20px;
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border-radius: 10px;
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}
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header, footer {
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text-align: center;
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margin-bottom: 20px;
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}
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header h1 {
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margin-bottom: 10px;
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font-size: 1.6em;
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color: #66c2ff;
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}
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/* -------- Amateurfunk-Logo/Text -------- */
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header .radio-icon {
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font-size: 2.2em;
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color: #66c2ff;
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margin-bottom: 10px;
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}
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/* -------- Login/Logout-Bereich -------- */
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.login, .nav {
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display: flex;
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justify-content: center;
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gap: 10px;
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margin-bottom: 20px;
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}
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.login form, .nav form {
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display: inline;
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}
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.login button, .nav button {
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padding: 8px 15px;
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border: none;
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border-radius: 4px;
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background-color: #66c2ff;
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color: #333;
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cursor: pointer;
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}
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.login button:hover, .nav button:hover {
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background-color: #3399ff;
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}
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/* -------- Fehlermeldung -------- */
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.error {
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color: #ffaaaa;
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text-align: center;
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margin-bottom: 10px;
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}
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/* -------- Suchformular -------- */
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.search-form {
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text-align: center;
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margin-bottom: 20px;
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}
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.search-form input[type="text"] {
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width: 70%;
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padding: 8px;
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border-radius: 4px;
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border: 1px solid #ccc;
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margin-right: 8px;
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}
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.search-form button {
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padding: 8px 15px;
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border: none;
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border-radius: 4px;
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background-color: #66c2ff;
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color: #333;
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cursor: pointer;
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}
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.search-form button:hover {
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background-color: #3399ff;
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}
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/* -------- Linkliste und einzelner Link-Eintrag -------- */
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.links-list {
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list-style: none;
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margin-bottom: 30px;
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}
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.links-list li {
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background-color: rgba(255, 255, 255, 0.1);
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border: 1px solid rgba(255,255,255,0.2);
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border-radius: 6px;
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padding: 10px;
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margin-bottom: 10px;
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display: flex;
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align-items: center;
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flex-wrap: wrap;
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position: relative;
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}
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/* -------- Favoritenstern ---------- */
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.favorite-star {
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position: absolute;
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top: 10px;
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right: 10px;
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font-size: 1.3em;
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color: gold;
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}
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.favorite-star.hidden {
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display: none;
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}
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/* -------- Voting-Bereich (Up/Down) -------- */
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.voting-container {
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margin-right: 15px;
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text-align: center;
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}
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.voting-container form {
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margin: 5px 0;
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}
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.voting-button {
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background-color: #66c2ff;
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color: #333;
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border: none;
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border-radius: 4px;
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padding: 4px 8px;
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cursor: pointer;
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}
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.voting-button:hover {
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background-color: #3399ff;
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}
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.score-display {
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font-size: 1.1em;
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font-weight: bold;
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color: #ffcc00;
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}
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/* -------- Vorschaubild rechts neben dem Text -------- */
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.links-list .thumbnail {
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width: 60px;
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height: 60px;
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object-fit: cover;
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border: 2px solid #66c2ff;
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border-radius: 8px;
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margin-left: auto;
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margin-right: 0;
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margin-left: 10px;
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}
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.links-list a {
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text-decoration: none;
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color: #66c2ff;
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font-weight: bold;
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word-wrap: break-word;
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}
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/* -------- Buttons zum Bearbeiten/Löschen/Favorisieren -------- */
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.admin-buttons {
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margin-top: 5px;
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}
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.admin-buttons form {
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display: inline;
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}
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.admin-buttons button {
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background-color: #ff6600;
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padding: 5px 8px;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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color: #fff;
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margin-right: 5px;
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}
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.admin-buttons button:hover {
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background-color: #d45500;
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}
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/* -------- Formulare (Hinzufügen/Bearbeiten) -------- */
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.form-container {
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margin-bottom: 20px;
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background-color: rgba(255,255,255,0.1);
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border: 1px solid rgba(255,255,255,0.2);
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padding: 15px;
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border-radius: 6px;
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}
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.form-container h2 {
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margin-bottom: 10px;
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color: #66c2ff;
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}
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.form-container label {
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display: block;
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margin: 8px 0 4px;
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color: #f0f0f0;
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}
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.form-container input[type="text"],
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.form-container input[type="url"],
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.form-container input[type="password"] {
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width: 100%;
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padding: 8px;
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border: 1px solid #bbb;
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border-radius: 4px;
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margin-bottom: 10px;
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}
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.form-container .submit-button {
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background-color: #66c2ff;
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color: #333;
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padding: 10px 15px;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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margin-top: 10px;
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}
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.form-container .submit-button:hover {
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background-color: #3399ff;
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}
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footer {
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margin-top: 30px;
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font-size: 0.9em;
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color: #ccc;
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}
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/* -------- Responsives Design -------- */
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@media (max-width: 600px) {
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body {
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padding: 10px;
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}
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.login, .nav {
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flex-direction: column;
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}
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.search-form input[type="text"] {
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width: 100%;
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margin-bottom: 10px;
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}
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.links-list li {
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flex-direction: column;
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align-items: flex-start;
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position: relative;
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}
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.links-list .thumbnail {
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margin: 10px 0 0 0;
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}
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.voting-container {
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margin-right: 0;
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margin-bottom: 10px;
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}
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}
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</style>
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</head>
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<body>
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<div class="container">
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<header>
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<div class="radio-icon">📻</div>
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<h1>Amateurfunk-Linkliste</h1>
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</header>
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<!-- Login/Logout-Bereich -->
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<?php if (!isLoggedIn()) : ?>
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<div class="login">
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<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
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<?php if (!empty($loginError)): ?>
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<div class="error"><?php echo $loginError; ?></div>
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<?php endif; ?>
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<input type="hidden" name="action" value="login">
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<label for="username">Benutzername</label>
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<input type="text" name="username" id="username" required>
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<label for="password">Passwort</label>
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<input type="password" name="password" id="password" required>
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<button type="submit">Login</button>
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</form>
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</div>
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<?php else : ?>
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<div class="nav">
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<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
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<input type="hidden" name="action" value="logout">
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<button type="submit">Logout (<?php echo htmlspecialchars($_SESSION['username']); ?>)</button>
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</form>
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</div>
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<?php endif; ?>
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<!-- Suchformular (für alle Benutzer) -->
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<div class="search-form">
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<form method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>">
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<input type="text" name="search" placeholder="Links durchsuchen..." value="<?php echo htmlspecialchars($searchQuery); ?>">
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<button type="submit">Suchen</button>
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</form>
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</div>
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<!-- Linkliste anzeigen (gefiltert nach Suchbegriff) -->
|
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<ul class="links-list">
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<?php foreach ($filteredLinks as $index => $link): ?>
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<li>
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<!-- Favoriten-Stern (falls Link als Favorit markiert ist) -->
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<div class="favorite-star <?php echo empty($link['favorite']) ? 'hidden' : ''; ?>">★</div>
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<!-- VOTING: Up/Down + Score -->
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<?php if (isLoggedIn()): ?>
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<div class="voting-container">
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<!-- Score anzeigen -->
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<div class="score-display">
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<?php echo (int)($link['score'] ?? 0); ?>
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</div>
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<!-- Upvote-Form -->
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<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
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<input type="hidden" name="action" value="vote_up">
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|
<input type="hidden" name="index" value="<?php echo $index; ?>">
|
|
<button class="voting-button" type="submit">▲</button>
|
|
</form>
|
|
<!-- Downvote-Form -->
|
|
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
|
|
<input type="hidden" name="action" value="vote_down">
|
|
<input type="hidden" name="index" value="<?php echo $index; ?>">
|
|
<button class="voting-button" type="submit">▼</button>
|
|
</form>
|
|
</div>
|
|
<?php else: ?>
|
|
<!-- Score-Anzeige für nicht eingeloggte Nutzer (ohne Voting-Buttons) -->
|
|
<div class="voting-container">
|
|
<div class="score-display">
|
|
<?php echo (int)($link['score'] ?? 0); ?>
|
|
</div>
|
|
</div>
|
|
<?php endif; ?>
|
|
|
|
<div>
|
|
<!-- Der eigentliche Link geht nicht direkt auf die URL, sondern mit ?go=INDEX zum Klickzählen -->
|
|
<a href="?go=<?php echo $index; ?>" target="_blank">
|
|
<?php echo htmlspecialchars($link['title']); ?>
|
|
</a>
|
|
|
|
<!-- Aufruf-Anzeige -->
|
|
<p style="margin-top:5px; font-size:0.9em; color:#ccc;">
|
|
Aufrufe: <?php echo (int)($link['clicks'] ?? 0); ?>
|
|
</p>
|
|
|
|
<?php if (isLoggedIn()) : ?>
|
|
<div class="admin-buttons">
|
|
<!-- Edit Button -->
|
|
<button onclick="document.getElementById('editForm<?php echo $index; ?>').style.display='block'">
|
|
Bearbeiten
|
|
</button>
|
|
<!-- Toggle Favorite -->
|
|
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" style="display:inline;">
|
|
<input type="hidden" name="action" value="toggle_fav">
|
|
<input type="hidden" name="index" value="<?php echo $index; ?>">
|
|
<button type="submit">
|
|
<?php echo empty($link['favorite']) ? 'Favorisieren' : 'Un-Fav'; ?>
|
|
</button>
|
|
</form>
|
|
<!-- Delete Form -->
|
|
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" style="display:inline;">
|
|
<input type="hidden" name="action" value="delete_link">
|
|
<input type="hidden" name="index" value="<?php echo $index; ?>">
|
|
<button type="submit" onclick="return confirm('Diesen Link wirklich löschen?');">
|
|
Löschen
|
|
</button>
|
|
</form>
|
|
</div>
|
|
<?php endif; ?>
|
|
</div>
|
|
|
|
<!-- Bildanzeige (entweder benutzerdefiniertes Bild oder YouTube-Icon) -->
|
|
<?php
|
|
$imgSrc = trim($link['image'] ?? '');
|
|
|
|
// Falls kein eigenes Bild vorhanden, prüfen, ob es sich um eine YouTube-URL handelt
|
|
if (empty($imgSrc)) {
|
|
$host = parse_url($link['url'], PHP_URL_HOST) ?: '';
|
|
if (strpos($host, 'youtube.com') !== false || strpos($host, 'youtu.be') !== false) {
|
|
// YouTube-Icon verwenden (z.B. SVG von Wikipedia)
|
|
$imgSrc = 'https://upload.wikimedia.org/wikipedia/commons/7/75/YouTube_social_white_squircle_%282017%29.svg';
|
|
}
|
|
}
|
|
?>
|
|
|
|
<?php if (!empty($imgSrc)): ?>
|
|
<img class="thumbnail"
|
|
src="<?php echo htmlspecialchars($imgSrc); ?>"
|
|
alt="Preview">
|
|
<?php endif; ?>
|
|
|
|
<!-- Bearbeiten-Formular (wird per Knopfdruck eingeblendet) -->
|
|
<?php if (isLoggedIn()) : ?>
|
|
<div class="form-container" id="editForm<?php echo $index; ?>" style="display:none;">
|
|
<h2>Link bearbeiten</h2>
|
|
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
|
|
<input type="hidden" name="action" value="edit_link">
|
|
<input type="hidden" name="index" value="<?php echo $index; ?>">
|
|
|
|
<label for="editTitle<?php echo $index; ?>">Titel</label>
|
|
<input type="text"
|
|
name="title"
|
|
id="editTitle<?php echo $index; ?>"
|
|
value="<?php echo htmlspecialchars($link['title']); ?>"
|
|
required>
|
|
|
|
<label for="editUrl<?php echo $index; ?>">URL</label>
|
|
<input type="url"
|
|
name="url"
|
|
id="editUrl<?php echo $index; ?>"
|
|
value="<?php echo htmlspecialchars($link['url']); ?>"
|
|
required>
|
|
|
|
<label for="editImg<?php echo $index; ?>">Bild-URL</label>
|
|
<input type="url"
|
|
name="image"
|
|
id="editImg<?php echo $index; ?>"
|
|
value="<?php echo htmlspecialchars($link['image']); ?>">
|
|
|
|
<button type="submit" class="submit-button">Speichern</button>
|
|
</form>
|
|
</div>
|
|
<?php endif; ?>
|
|
</li>
|
|
<?php endforeach; ?>
|
|
</ul>
|
|
|
|
<!-- Formular zum Link hinzufügen (nur für eingeloggte Nutzer) -->
|
|
<?php if (isLoggedIn()) : ?>
|
|
<div class="form-container">
|
|
<h2>Neuen Link hinzufügen</h2>
|
|
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
|
|
<input type="hidden" name="action" value="add_link">
|
|
|
|
<label for="newTitle">Titel</label>
|
|
<input type="text" name="title" id="newTitle" required>
|
|
|
|
<label for="newUrl">URL</label>
|
|
<input type="url" name="url" id="newUrl" required>
|
|
|
|
<label for="newImg">Bild-URL (optional)</label>
|
|
<input type="url" name="image" id="newImg" placeholder="https://...">
|
|
|
|
<button type="submit" class="submit-button">Hinzufügen</button>
|
|
</form>
|
|
</div>
|
|
<?php endif; ?>
|
|
|
|
<footer>
|
|
<p>© 2024 Amateurfunk-Linkliste</p>
|
|
</footer>
|
|
</div>
|
|
</body>
|
|
</html>
|