Delete link.php

This commit is contained in:
2026-04-05 09:01:21 +02:00
committed by GitHub
parent 03185e8458
commit 555000c1cd
-679
View File
@@ -1,679 +0,0 @@
<?php
/***************************************************************
* Einseiten-Anwendung (index.php) für eine Linkliste
* mit folgenden Features:
*
* - Login/Logout (User admin, PW gradio)
* - JSON-Datenspeicherung
* - Suchfunktion
* - Klickzähler (Links)
* - Favoriten (Toggle)
* - Voting-System (Up-/Downvote -> Score)
* - Optionales Vorschaubild (YouTube-Icon bei youtube.com)
* - Optionales Hintergrundbild (konfigurierbar)
***************************************************************/
session_start();
// ---------------------- Konfiguration -------------------------
// Beispiel-Nutzer (Benutzername: admin / Passwort: gradio)
$USER_CREDENTIALS = [
'admin' => 'gradio'
];
// Dateiname, in dem unsere Links gespeichert werden
$LINKS_FILE = __DIR__ . '/links.json';
// Optionales Hintergrundbild (leer lassen, falls kein Hintergrundbild)
$BACKGROUND_IMAGE = "";
// Beispiel: $BACKGROUND_IMAGE = "https://via.placeholder.com/1200x800/404040/FFFFFF?text=Background";
// ---------------------- Hilfsfunktionen -----------------------
/**
* Lädt die Linkliste aus dem JSON-File
*
* @return array
*/
function loadLinks($file)
{
if (!file_exists($file)) {
return [];
}
$jsonData = file_get_contents($file);
return json_decode($jsonData, true) ?? [];
}
/**
* Schreibt die Linkliste in das JSON-File
*
* @param array $linksArray
* @param string $file
*/
function saveLinks($linksArray, $file)
{
file_put_contents($file, json_encode($linksArray, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE));
}
/**
* Prüft, ob ein Nutzer eingeloggt ist.
*
* @return bool
*/
function isLoggedIn()
{
return isset($_SESSION['username']);
}
// ---------------------- Login/Logout-Prozess ------------------
if (isset($_POST['action']) && $_POST['action'] === 'login') {
// Login-Formular wurde abgeschickt
$username = trim($_POST['username'] ?? '');
$password = trim($_POST['password'] ?? '');
global $USER_CREDENTIALS;
if (array_key_exists($username, $USER_CREDENTIALS) &&
$USER_CREDENTIALS[$username] === $password
) {
$_SESSION['username'] = $username;
} else {
$loginError = 'Falscher Benutzername oder Passwort!';
}
} elseif (isset($_POST['action']) && $_POST['action'] === 'logout') {
// Logout
session_destroy();
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
// ---------------------- Link-Management -----------------------
$links = loadLinks($LINKS_FILE);
// Falls wir per GET "go" einen Link aufrufen, Klickzähler erhöhen und weiterleiten
if (isset($_GET['go'])) {
$goIndex = intval($_GET['go']);
if (isset($links[$goIndex])) {
// Klickzähler um 1 erhöhen
$links[$goIndex]['clicks'] = ($links[$goIndex]['clicks'] ?? 0) + 1;
saveLinks($links, $LINKS_FILE);
// Weiterleitung zum tatsächlichen Ziel
header("Location: " . $links[$goIndex]['url']);
exit;
}
}
// Link hinzufügen/bearbeiten/löschen/favorisieren/voten nur, wenn eingeloggt
if (isLoggedIn()) {
// Link hinzufügen
if (isset($_POST['action']) && $_POST['action'] === 'add_link') {
$newTitle = trim($_POST['title'] ?? '');
$newUrl = trim($_POST['url'] ?? '');
$newImgUrl = trim($_POST['image'] ?? '');
if ($newTitle !== '' && $newUrl !== '') {
$links[] = [
'title' => $newTitle,
'url' => $newUrl,
'image' => $newImgUrl,
'clicks' => 0,
'favorite' => false,
'score' => 0 // neu fürs Voting
];
saveLinks($links, $LINKS_FILE);
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
}
// Link bearbeiten
if (isset($_POST['action']) && $_POST['action'] === 'edit_link') {
$editIndex = intval($_POST['index'] ?? -1);
$editTitle = trim($_POST['title'] ?? '');
$editUrl = trim($_POST['url'] ?? '');
$editImg = trim($_POST['image'] ?? '');
if ($editIndex >= 0 && isset($links[$editIndex])) {
$links[$editIndex]['title'] = $editTitle;
$links[$editIndex]['url'] = $editUrl;
$links[$editIndex]['image'] = $editImg;
// Sicherstellen, dass Klickzähler, Favoriten, Score ex. sind
$links[$editIndex]['clicks'] = $links[$editIndex]['clicks'] ?? 0;
$links[$editIndex]['favorite'] = $links[$editIndex]['favorite'] ?? false;
$links[$editIndex]['score'] = $links[$editIndex]['score'] ?? 0;
saveLinks($links, $LINKS_FILE);
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
}
// Link löschen
if (isset($_POST['action']) && $_POST['action'] === 'delete_link') {
$deleteIndex = intval($_POST['index'] ?? -1);
if ($deleteIndex >= 0 && isset($links[$deleteIndex])) {
array_splice($links, $deleteIndex, 1);
saveLinks($links, $LINKS_FILE);
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
}
// Favorit toggeln
if (isset($_POST['action']) && $_POST['action'] === 'toggle_fav') {
$favIndex = intval($_POST['index'] ?? -1);
if ($favIndex >= 0 && isset($links[$favIndex])) {
$isFav = $links[$favIndex]['favorite'] ?? false;
$links[$favIndex]['favorite'] = !$isFav;
saveLinks($links, $LINKS_FILE);
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
}
// Voting Up/Down
if (isset($_POST['action']) && in_array($_POST['action'], ['vote_up', 'vote_down'])) {
$voteIndex = intval($_POST['index'] ?? -1);
if ($voteIndex >= 0 && isset($links[$voteIndex])) {
$links[$voteIndex]['score'] = $links[$voteIndex]['score'] ?? 0;
if ($_POST['action'] === 'vote_up') {
$links[$voteIndex]['score']++;
} else {
$links[$voteIndex]['score']--;
}
saveLinks($links, $LINKS_FILE);
header("Location: {$_SERVER['PHP_SELF']}");
exit;
}
}
}
// ---------------------- Suchfunktion (für alle User) ----------
$searchQuery = trim($_GET['search'] ?? '');
// Links filtern (Titel oder URL enthalten den Suchbegriff)
$filteredLinks = array_filter($links, function($link) use ($searchQuery) {
if ($searchQuery === '') return true; // Nichts gesucht -> Alle Links
return (stripos($link['title'], $searchQuery) !== false ||
stripos($link['url'], $searchQuery) !== false);
});
?>
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Amateurfunk-Linkliste</title>
<style>
/* -------- Reset -------- */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
/* -------- Hintergrundbild optional -------- */
<?php if (!empty($BACKGROUND_IMAGE)): ?>
body {
font-family: Arial, sans-serif;
background: url('<?php echo $BACKGROUND_IMAGE; ?>')
no-repeat center center fixed;
background-size: cover;
color: #f0f0f0;
padding: 20px;
}
<?php else: ?>
body {
font-family: Arial, sans-serif;
background: #303030; /* Einfacher Hintergrund */
color: #f0f0f0;
padding: 20px;
}
<?php endif; ?>
.container {
max-width: 700px;
margin: 0 auto;
background-color: rgba(0, 0, 0, 0.65);
padding: 20px;
border-radius: 10px;
}
header, footer {
text-align: center;
margin-bottom: 20px;
}
header h1 {
margin-bottom: 10px;
font-size: 1.6em;
color: #66c2ff;
}
/* -------- Amateurfunk-Logo/Text -------- */
header .radio-icon {
font-size: 2.2em;
color: #66c2ff;
margin-bottom: 10px;
}
/* -------- Login/Logout-Bereich -------- */
.login, .nav {
display: flex;
justify-content: center;
gap: 10px;
margin-bottom: 20px;
}
.login form, .nav form {
display: inline;
}
.login button, .nav button {
padding: 8px 15px;
border: none;
border-radius: 4px;
background-color: #66c2ff;
color: #333;
cursor: pointer;
}
.login button:hover, .nav button:hover {
background-color: #3399ff;
}
/* -------- Fehlermeldung -------- */
.error {
color: #ffaaaa;
text-align: center;
margin-bottom: 10px;
}
/* -------- Suchformular -------- */
.search-form {
text-align: center;
margin-bottom: 20px;
}
.search-form input[type="text"] {
width: 70%;
padding: 8px;
border-radius: 4px;
border: 1px solid #ccc;
margin-right: 8px;
}
.search-form button {
padding: 8px 15px;
border: none;
border-radius: 4px;
background-color: #66c2ff;
color: #333;
cursor: pointer;
}
.search-form button:hover {
background-color: #3399ff;
}
/* -------- Linkliste und einzelner Link-Eintrag -------- */
.links-list {
list-style: none;
margin-bottom: 30px;
}
.links-list li {
background-color: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255,255,255,0.2);
border-radius: 6px;
padding: 10px;
margin-bottom: 10px;
display: flex;
align-items: center;
flex-wrap: wrap;
position: relative;
}
/* -------- Favoritenstern ---------- */
.favorite-star {
position: absolute;
top: 10px;
right: 10px;
font-size: 1.3em;
color: gold;
}
.favorite-star.hidden {
display: none;
}
/* -------- Voting-Bereich (Up/Down) -------- */
.voting-container {
margin-right: 15px;
text-align: center;
}
.voting-container form {
margin: 5px 0;
}
.voting-button {
background-color: #66c2ff;
color: #333;
border: none;
border-radius: 4px;
padding: 4px 8px;
cursor: pointer;
}
.voting-button:hover {
background-color: #3399ff;
}
.score-display {
font-size: 1.1em;
font-weight: bold;
color: #ffcc00;
}
/* -------- Vorschaubild rechts neben dem Text -------- */
.links-list .thumbnail {
width: 60px;
height: 60px;
object-fit: cover;
border: 2px solid #66c2ff;
border-radius: 8px;
margin-left: auto;
margin-right: 0;
margin-left: 10px;
}
.links-list a {
text-decoration: none;
color: #66c2ff;
font-weight: bold;
word-wrap: break-word;
}
/* -------- Buttons zum Bearbeiten/Löschen/Favorisieren -------- */
.admin-buttons {
margin-top: 5px;
}
.admin-buttons form {
display: inline;
}
.admin-buttons button {
background-color: #ff6600;
padding: 5px 8px;
border: none;
border-radius: 4px;
cursor: pointer;
color: #fff;
margin-right: 5px;
}
.admin-buttons button:hover {
background-color: #d45500;
}
/* -------- Formulare (Hinzufügen/Bearbeiten) -------- */
.form-container {
margin-bottom: 20px;
background-color: rgba(255,255,255,0.1);
border: 1px solid rgba(255,255,255,0.2);
padding: 15px;
border-radius: 6px;
}
.form-container h2 {
margin-bottom: 10px;
color: #66c2ff;
}
.form-container label {
display: block;
margin: 8px 0 4px;
color: #f0f0f0;
}
.form-container input[type="text"],
.form-container input[type="url"],
.form-container input[type="password"] {
width: 100%;
padding: 8px;
border: 1px solid #bbb;
border-radius: 4px;
margin-bottom: 10px;
}
.form-container .submit-button {
background-color: #66c2ff;
color: #333;
padding: 10px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
margin-top: 10px;
}
.form-container .submit-button:hover {
background-color: #3399ff;
}
footer {
margin-top: 30px;
font-size: 0.9em;
color: #ccc;
}
/* -------- Responsives Design -------- */
@media (max-width: 600px) {
body {
padding: 10px;
}
.login, .nav {
flex-direction: column;
}
.search-form input[type="text"] {
width: 100%;
margin-bottom: 10px;
}
.links-list li {
flex-direction: column;
align-items: flex-start;
position: relative;
}
.links-list .thumbnail {
margin: 10px 0 0 0;
}
.voting-container {
margin-right: 0;
margin-bottom: 10px;
}
}
</style>
</head>
<body>
<div class="container">
<header>
<div class="radio-icon">📻</div>
<h1>Amateurfunk-Linkliste</h1>
</header>
<!-- Login/Logout-Bereich -->
<?php if (!isLoggedIn()) : ?>
<div class="login">
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<?php if (!empty($loginError)): ?>
<div class="error"><?php echo $loginError; ?></div>
<?php endif; ?>
<input type="hidden" name="action" value="login">
<label for="username">Benutzername</label>
<input type="text" name="username" id="username" required>
<label for="password">Passwort</label>
<input type="password" name="password" id="password" required>
<button type="submit">Login</button>
</form>
</div>
<?php else : ?>
<div class="nav">
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="hidden" name="action" value="logout">
<button type="submit">Logout (<?php echo htmlspecialchars($_SESSION['username']); ?>)</button>
</form>
</div>
<?php endif; ?>
<!-- Suchformular (für alle Benutzer) -->
<div class="search-form">
<form method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="text" name="search" placeholder="Links durchsuchen..." value="<?php echo htmlspecialchars($searchQuery); ?>">
<button type="submit">Suchen</button>
</form>
</div>
<!-- Linkliste anzeigen (gefiltert nach Suchbegriff) -->
<ul class="links-list">
<?php foreach ($filteredLinks as $index => $link): ?>
<li>
<!-- Favoriten-Stern (falls Link als Favorit markiert ist) -->
<div class="favorite-star <?php echo empty($link['favorite']) ? 'hidden' : ''; ?>">★</div>
<!-- VOTING: Up/Down + Score -->
<?php if (isLoggedIn()): ?>
<div class="voting-container">
<!-- Score anzeigen -->
<div class="score-display">
<?php echo (int)($link['score'] ?? 0); ?>
</div>
<!-- Upvote-Form -->
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<input type="hidden" name="action" value="vote_up">
<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>