From 9a58eaae53bdd2a4fcdd66b1eb852c7db7970de9 Mon Sep 17 00:00:00 2001
From: ilotterytea <iltsu@alright.party>
Date: Sun, 8 Jun 2025 01:37:19 +0400
Subject: feat: moderation system

---
 lib/partials.php        |  10 +++
 lib/utils.php           |   1 +
 public/delete.php       |  18 ++++--
 public/index.php        |  13 ++--
 public/mod.php          | 159 ++++++++++++++++++++++++++++++++++++++++++++++++
 public/static/style.css |   4 +-
 6 files changed, 195 insertions(+), 10 deletions(-)
 create mode 100644 public/mod.php

diff --git a/lib/partials.php b/lib/partials.php
index c35fe43..afd36d6 100644
--- a/lib/partials.php
+++ b/lib/partials.php
@@ -23,6 +23,11 @@ function html_big_navbar()
             <a href="/uploaders.php">
                 <button>Uploaders</button>
             </a>
+            <?php if (isset($_SESSION['is_moderator'])): ?>
+                <a href="/mod.php">
+                    <button>Moderation</button>
+                </a>
+            <?php endif; ?>
         </div>
     </section>
     <?php ;
@@ -49,6 +54,11 @@ function html_mini_navbar()
             <a href="/uploaders.php">
                 <button>Uploaders</button>
             </a>
+            <?php if (isset($_SESSION['is_moderator'])): ?>
+                <a href="/mod.php">
+                    <button>Moderation</button>
+                </a>
+            <?php endif; ?>
         </div>
     </section>
     <?php ;
diff --git a/lib/utils.php b/lib/utils.php
index 31d8778..eb868a2 100644
--- a/lib/utils.php
+++ b/lib/utils.php
@@ -1,5 +1,6 @@
 <?php
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../config.php';
+define('IS_JSON_REQUEST', $_SERVER['HTTP_ACCEPT'] == 'application/json');
 
 function json_response(mixed $data, string|null $message, int $code = 200)
 {
diff --git a/public/delete.php b/public/delete.php
index b716796..453e0b3 100644
--- a/public/delete.php
+++ b/public/delete.php
@@ -1,17 +1,20 @@
 <?php
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../config.php';
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/utils.php';
+include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/file.php';
+
+session_start();
 
 if (!FILE_DELETION) {
     json_response(null, 'File deletion is not allowed!', 403);
     exit();
 }
 
-$file_id = $_GET['f'] ?: null;
-$password = $_GET['key'] ?: null;
+$file_id = $_GET['f'] ?? null;
+$password = $_GET['key'] ?? null;
 
-if (!isset($file_id, $password)) {
-    json_response(null, "Fields 'f' and 'key' must be set!", 400);
+if (!isset($file_id)) {
+    json_response(null, "File ID must be set!", 400);
     exit();
 }
 
@@ -41,7 +44,12 @@ if (!array_key_exists('password', $metadata)) {
     exit();
 }
 
-if (!password_verify($password, $metadata['password'])) {
+if (!isset($_SESSION['is_moderator']) && !isset($password)) {
+    json_response(null, "Field 'key' must be set!", 400);
+    exit();
+}
+
+if (!isset($_SESSION['is_moderator']) && !password_verify($password, $metadata['password'])) {
     json_response(null, "Bad password", 401);
     exit();
 }
diff --git a/public/index.php b/public/index.php
index 580a186..7df2ce1 100644
--- a/public/index.php
+++ b/public/index.php
@@ -3,6 +3,8 @@ include_once $_SERVER['DOCUMENT_ROOT'] . '/../config.php';
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/partials.php';
 include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/utils.php';
 
+session_start();
+
 if (FILE_CATALOG_RANDOM && isset($_GET['random'])) {
     $files = glob(FILE_UPLOAD_DIRECTORY . "/*.*");
     $file = $files[random_int(0, count($files) - 1)];
@@ -46,8 +48,6 @@ if (FILE_CATALOG_FANCY_VIEW && $file_id) {
         $file = json_decode(file_get_contents($meta_path), true);
 
         if (isset($file['views'])) {
-            session_start();
-
             $viewed_file_ids = $_SESSION['viewed_file_ids'] ?? [];
 
             if (!in_array($file['id'], $viewed_file_ids)) {
@@ -156,6 +156,11 @@ $privacy_exists = is_file($_SERVER['DOCUMENT_ROOT'] . '/static/PRIVACY.txt');
                             <?php endif; ?>
                         </div>
                         <div class="grow row gap-8 justify-end align-center" id="file-tab-buttons">
+                            <?php if (isset($_SESSION['is_moderator'])): ?>
+                                <a href="/delete.php?f=<?= $file['id'] ?>.<?= $file['extension'] ?>">
+                                    <button>Delete</button>
+                                </a>
+                            <?php endif; ?>
                             <?php if (FILE_REPORT): ?>
                                 <a href="/report.php?f=<?= $file['id'] ?>.<?= $file['extension'] ?>">
                                     <button>Report</button>
@@ -303,7 +308,7 @@ $privacy_exists = is_file($_SERVER['DOCUMENT_ROOT'] . '/static/PRIVACY.txt');
     </main>
 </body>
 
-<?php if ($file): ?>
+<?php if ($file && !isset($_SESSION['is_moderator'])): ?>
     <script>
         // adding deletion button
         const files = JSON.parse(localStorage.getItem('uploaded_files') ?? '[]');
@@ -313,7 +318,7 @@ $privacy_exists = is_file($_SERVER['DOCUMENT_ROOT'] . '/static/PRIVACY.txt');
             buttons.innerHTML = `<a href='${file.urls.deletion_url}'><button>Delete</button></a>` + buttons.innerHTML;
         }
     </script>
-<?php else: ?>
+<?php elseif (!$file): ?>
     <script>
         const formDetails = document.getElementById('form-upload-options');
 
diff --git a/public/mod.php b/public/mod.php
new file mode 100644
index 0000000..d0ec00c
--- /dev/null
+++ b/public/mod.php
@@ -0,0 +1,159 @@
+<?php
+include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/partials.php';
+include_once $_SERVER['DOCUMENT_ROOT'] . '/../lib/utils.php';
+include_once $_SERVER['DOCUMENT_ROOT'] . '/../config.php';
+
+session_start();
+
+if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+    if (!isset($_POST['password'])) {
+        json_response(null, 'No password set', 400);
+        exit();
+    }
+
+    if (!is_file(MOD_FILE) && !file_put_contents(MOD_FILE, '')) {
+        json_response(null, 'Failed to create a file for mod passwords', 500);
+        exit();
+    }
+
+    $password_file = explode('\n', file_get_contents(MOD_FILE));
+
+    $is_authorized = false;
+
+    foreach ($password_file as $p) {
+        $is_authorized = password_verify($_POST['password'], $p);
+        if ($is_authorized) {
+            break;
+        }
+    }
+
+    if (!$is_authorized) {
+        if (IS_JSON_REQUEST) {
+            json_response(null, 'Unauthorized!', 401);
+        } else {
+            header('Location: /mod.php');
+        }
+        exit();
+    }
+
+    $_SESSION['is_moderator'] = $is_authorized;
+
+    if (IS_JSON_REQUEST) {
+        json_response(null, 'Authorized!', 200);
+    } else {
+        header('Location: /mod.php');
+    }
+    exit();
+}
+
+$files = [];
+
+$page = intval($_GET['fp'] ?? '1');
+$max_pages = 0;
+
+if (isset($_SESSION['is_moderator'])) {
+    $quantity = 10;
+
+    $filelist = glob(FILE_UPLOAD_DIRECTORY . '/*.*');
+    usort($filelist, function ($a, $b) {
+        return filemtime($b) - filemtime($a);
+    });
+
+    $selected_files = array_slice($filelist, ($page - 1) * $quantity, $quantity);
+
+    $max_pages = ceil(count($filelist) / $quantity);
+
+    foreach ($selected_files as $f) {
+        $name = basename($f);
+        $id = explode('.', $name);
+        array_push($files, [
+            'name' => $name,
+            'id' => $id[0],
+            'extension' => $id[1]
+        ]);
+    }
+}
+?>
+<html>
+
+<head>
+    <title>Moderation - <?= INSTANCE_NAME ?></title>
+    <link rel="stylesheet" href="/static/style.css">
+    <link rel="shortcut icon" href="/static/favicon.ico" type="image/x-icon">
+</head>
+
+<body>
+    <main>
+        <?php html_mini_navbar() ?>
+        <?php if (isset($_SESSION['is_moderator'])): ?>
+            <?php if (!empty($files)): ?>
+                <section class="column gap-8">
+                    <h2>Files (Page <?= $page ?> / <?= $max_pages ?>)</h2>
+                    <hr>
+                    <table class="left">
+                        <tr>
+                            <?php if (FILE_THUMBNAILS): ?>
+                                <th style="width: 10%;"></th>
+                            <?php endif; ?>
+                            <th>File</th>
+                            <th>Age</th>
+                            <th>Actions</th>
+                        </tr>
+                        <?php foreach ($files as $f): ?>
+                            <tr>
+                                <td>
+                                    <?php if (FILE_THUMBNAILS): ?>
+                                        <img src="<?= sprintf('%s/%s.webp', FILE_THUMBNAIL_DIRECTORY_PREFIX, $f['id']) ?>" alt=""
+                                            height="24">
+                                    <?php endif; ?>
+                                </td>
+                                <td>
+                                    <a href="/<?= $f['name'] ?>" target="_blank"><?= $f['name'] ?></a>
+                                </td>
+                                <td>
+                                    <?= format_timestamp(time() - filemtime(sprintf('%s/%s', FILE_UPLOAD_DIRECTORY, $f['name']))) ?>
+                                </td>
+                                <td>
+                                    <a href="/delete.php?f=<?= $f['name'] ?>">
+                                        <button>
+                                            <img src="/static/img/icons/delete.png" alt="Delete">
+                                        </button>
+                                    </a>
+                                </td>
+                            </tr>
+                        <?php endforeach; ?>
+                    </table>
+
+                    <div class="row gap-8">
+                        <?php if ($page - 1 >= 1): ?>
+                            <a href="/mod.php?fp=<?= $page - 1 ?>">
+                                <button>Previous</button>
+                            </a>
+                        <?php endif; ?>
+                        <?php if ($page + 1 <= $max_pages): ?>
+                            <a href="/mod.php?fp=<?= $page + 1 ?>">
+                                <button>Next</button>
+                            </a>
+                        <?php endif; ?>
+                    </div>
+                </section>
+            <?php else: ?>
+                <p><i>No files to moderate...</i></p>
+            <?php endif; ?>
+        <?php else: ?>
+            <h1>Log in to the moderation system</h1>
+            <hr>
+            <form action="/mod.php" method="post">
+                <table>
+                    <tr>
+                        <th>Password:</th>
+                        <td><input type="password" name="password" required></td>
+                    </tr>
+                </table>
+                <button type="submit">Log in</button>
+            </form>
+        <?php endif; ?>
+    </main>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/public/static/style.css b/public/static/style.css
index 1ac9cef..f721a03 100644
--- a/public/static/style.css
+++ b/public/static/style.css
@@ -117,7 +117,9 @@ table.vertical th {
     vertical-align: top;
 }
 
-table.vertical.left th {
+table.vertical.left th,
+table.left th,
+table.left td {
     text-align: left;
 }
 
-- 
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