Upload files via form chunks

build-plugin.sh

@@ -2,7 +2,7 @@
 set -eu
 
 PLUGIN="u-navigator"
-VERSION="2026.06.23.r047"
+VERSION="2026.06.23.r048"
 PKG_DIR="packages"
 WORK_DIR=".plugin-build"
 PKG_NAME="${PLUGIN}-${VERSION}.tgz"

plugin-root/usr/local/emhttp/plugins/u-navigator/api/upload.php

@@ -7,6 +7,44 @@ if (!is_dir($target['path'])) {
     unav_error(400, 'Upload target must be a directory');
 }
 
+if (($_POST['uploadMode'] ?? '') === 'chunk') {
+    $relativeName = (string)($_POST['relativePath'] ?? '');
+    $chunkIndex = filter_var($_POST['chunkIndex'] ?? null, FILTER_VALIDATE_INT);
+    $totalChunks = filter_var($_POST['totalChunks'] ?? null, FILTER_VALIDATE_INT);
+    $encoded = (string)($_POST['data'] ?? '');
+    if ($relativeName === '' || $chunkIndex === false || $totalChunks === false || $chunkIndex < 0 || $totalChunks < 1 || $chunkIndex >= $totalChunks) {
+        unav_error(400, 'Invalid upload chunk');
+    }
+    $destination = unav_prepare_upload_destination($target['path'], $relativeName);
+    $temporary = $destination['path'] . '.u-nav-upload';
+    if ($chunkIndex === 0) {
+        @unlink($temporary);
+    } elseif (!is_file($temporary)) {
+        unav_error(400, 'Upload session not found');
+    }
+    $data = base64_decode($encoded, true);
+    if ($data === false) {
+        unav_error(400, 'Invalid upload data');
+    }
+    if (file_put_contents($temporary, $data, $chunkIndex === 0 ? LOCK_EX : FILE_APPEND | LOCK_EX) === false) {
+        unav_error(500, 'Could not write upload chunk');
+    }
+    $complete = $chunkIndex === $totalChunks - 1;
+    if ($complete && !rename($temporary, $destination['path'])) {
+        @unlink($temporary);
+        unav_error(500, 'Could not finalize upload');
+    }
+    unav_json([
+        'uploaded' => $complete ? [[
+            'name' => $destination['relative'],
+            'size' => filesize($destination['path']) ?: 0,
+        ]] : [],
+        'chunk' => $chunkIndex + 1,
+        'totalChunks' => $totalChunks,
+        'complete' => $complete,
+    ], $complete ? 201 : 202);
+}
+
 if (isset($_GET['relativePath']) || isset($_SERVER['HTTP_X_UNAV_RELATIVE_PATH'])) {
     $relativeName = (string)($_GET['relativePath'] ?? $_SERVER['HTTP_X_UNAV_RELATIVE_PATH']);
     $destination = unav_prepare_upload_destination($target['path'], $relativeName);

server/public/app.js

@@ -904,25 +904,37 @@ async function uploadFileList(win, files, targetPath) {
   const uploadItems = normalizeUploadItems(files);
   for (const [index, item] of uploadItems.entries()) {
     recordDebug('upload.file.request', { path: item.path, size: item.file.size, index: index + 1, total: uploadItems.length });
-    const params = new URLSearchParams({
+    await uploadFileChunked(targetPath, item.file, item.path);
-      path: targetPath,
+    recordDebug('upload.file.done', { path: item.path, index: index + 1, total: uploadItems.length });
-      relativePath: item.path
-    });
-    const token = getCsrfToken();
-    if (token) {
-      params.set('csrf_token', token);
-      recordDebug('csrf.attached', { length: token.length });
-    } else {
-      recordDebug('csrf.missing', {});
   }
-    const response = await fetch(apiUrl(`upload.php?${params.toString()}`), {
+  await loadExplorer(win, targetPath);
+}
+
+async function uploadFileChunked(targetPath, file, relativePath) {
+  const chunkSize = 256 * 1024;
+  const totalChunks = Math.max(1, Math.ceil(file.size / chunkSize));
+  let finalPayload = null;
+  for (let chunkIndex = 0; chunkIndex < totalChunks; chunkIndex += 1) {
+    const start = chunkIndex * chunkSize;
+    const chunk = file.slice(start, Math.min(file.size, start + chunkSize));
+    const data = arrayBufferToBase64(await chunk.arrayBuffer());
+    const body = new URLSearchParams();
+    body.set('uploadMode', 'chunk');
+    body.set('relativePath', relativePath);
+    body.set('chunkIndex', String(chunkIndex));
+    body.set('totalChunks', String(totalChunks));
+    body.set('data', data);
+    appendCsrf(body);
+    const response = await fetch(apiUrl(`upload.php?path=${encodeURIComponent(targetPath)}`), {
       method: 'POST',
-      headers: { 'Content-Type': 'application/octet-stream' },
+      headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8' },
-      body: item.file
+      body
     });
     const text = await response.text();
-    recordDebug('upload.file.response', {
+    recordDebug('upload.chunk.response', {
-      path: item.path,
+      path: relativePath,
+      chunk: chunkIndex + 1,
+      totalChunks,
       status: response.status,
       ok: response.ok,
       contentType: response.headers.get('content-type'),
@@ -931,18 +943,24 @@ async function uploadFileList(win, files, targetPath) {
     if (!response.ok) {
       throw new Error(text || `${response.status} ${response.statusText}`);
     }
-    let payload;
     try {
-      payload = JSON.parse(text);
+      finalPayload = JSON.parse(text);
     } catch (error) {
       throw new Error(`Upload lieferte keine JSON-Antwort: ${text.slice(0, 200) || response.headers.get('content-type') || 'leer'}`);
     }
-    if (!payload.uploaded?.length) {
+  }
+  if (!finalPayload?.uploaded?.length) {
     throw new Error('Upload wurde vom Server nicht bestätigt.');
   }
-    recordDebug('upload.file.done', { path: item.path, index: index + 1, total: uploadItems.length });
+}
+
+function arrayBufferToBase64(buffer) {
+  const bytes = new Uint8Array(buffer);
+  let binary = '';
+  for (let index = 0; index < bytes.length; index += 0x8000) {
+    binary += String.fromCharCode(...bytes.subarray(index, index + 0x8000));
   }
-  await loadExplorer(win, targetPath);
+  return btoa(binary);
 }
 
 function normalizeUploadItems(files) {

u-navigator.plg

@@ -1,7 +1,7 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "u-navigator">
 <!ENTITY author "Michael Roll">
-<!ENTITY version "2026.06.23.r047">
+<!ENTITY version "2026.06.23.r048">
 <!ENTITY package "&name;-&version;.tgz">
 <!ENTITY pluginURL "https://git.casaderoll.de/michael/Unraid-Navigator/raw/branch/main/u-navigator.plg">
 <!ENTITY support "https://git.casaderoll.de/michael/Unraid-Navigator">
@@ -24,7 +24,7 @@
 
 <FILE Name="/boot/config/plugins/&name;/&package;">
 <URL>https://git.casaderoll.de/michael/Unraid-Navigator/raw/branch/main/packages/&package;</URL>
-<MD5>3c9e5a641720371ec7cee8bd70a32d8e</MD5>
+<MD5>45fd0a1c4f8033d9daa56268f48742d4</MD5>
 </FILE>
 
 <FILE Run="/bin/bash">