feat: S3 client compatibility — virtual-hosted style, CORS, presigned multi-method, ListMultipartUploads, edge case fixes

- Virtual-hosted bucket detection from Host header (extractS3BucketFromHost)
- S3 CORS headers + OPTIONS preflight + x-amz-id-2/HostId everywhere
- Presigned GET/PUT/HEAD/DELETE via centralized auth (no GET-only restriction)
- ListMultipartUploads with DB/xml helpers
- UploadPart partNumber range validation (1-10000)
- CompleteMultipartUpload ETag matching and ascending order validation
- DeleteObjects quiet mode support
- CopyObject URL-decode and conditional if-match/if-none-match
- encoding-type=url support in ListObjects V1/V2 XML
- Safe range-based prefix matching (replaces SQL LIKE)
- STREAMING-AWS4-HMAC-SHA256-PAYLOAD → 501 NotImplemented
- Traefik wildcard HostRegex for virtual-hosted style
- S3_VHOST_DOMAINS config env var

.env.example

@@ -13,4 +13,5 @@ RATE_LIMIT_MAX_REQUESTS=30
 # S3-compatible API credentials
 # S3_ACCESS_KEY=teleuploader-admin
 # S3_SECRET_KEY=your-secret-key-here
-# S3_DEFAULT_REGION=us-east-1
+# S3_DEFAULT_REGION=us-east-1
+# S3_VHOST_DOMAINS=upload.asepharyana.my.id,upload.asepharyana.web.id

docker-compose.yml

@@ -48,7 +48,7 @@ services:
       - app-shared-net
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.teleuploader.rule=Host(`upload.asepharyana.my.id`) || Host(`upload.asepharyana.web.id`)"
+      - "traefik.http.routers.teleuploader.rule=Host(`upload.asepharyana.my.id`) || Host(`upload.asepharyana.web.id`) || HostRegexp(`{subhost:[a-z0-9][a-z0-9.-]+}.upload.asepharyana.my.id`) || HostRegexp(`{subhost:[a-z0-9][a-z0-9.-]+}.upload.asepharyana.web.id`)"
       - "traefik.http.routers.teleuploader.entrypoints=websecure"
       - "traefik.http.routers.teleuploader.tls=true"
       - "traefik.http.routers.teleuploader.tls.certresolver=cloudflare"

src/db/files-ext.ts

@@ -62,7 +62,9 @@ export const listObjectsByPrefix = async (
   maxKeys: number,
   startAfter: string | null,
 ): Promise<{ objects: S3FileRecord[]; prefixes: string[] }> => {
-  let query = sql`SELECT * FROM files WHERE bucket_id = ${bucketId}::uuid AND is_deleted = false AND s3_key LIKE ${`${prefix}%`}`;
+  let query = prefix
+    ? sql`SELECT * FROM files WHERE bucket_id = ${bucketId}::uuid AND is_deleted = false AND s3_key >= ${prefix} AND s3_key < ${`${prefix}￿`}`
+    : sql`SELECT * FROM files WHERE bucket_id = ${bucketId}::uuid AND is_deleted = false`;
 
   if (startAfter) {
     query = sql`${query} AND s3_key > ${startAfter}`;

src/db/multipart.ts

@@ -90,3 +90,40 @@ export const listMultipartParts = async (uploadId: string): Promise<MultipartPar
     createdAt: new Date(r.created_at as string),
   }));
 };
+
+const mapRowToMultipartUpload = (r: Record<string, unknown>): MultipartUpload => ({
+  uploadId: r.upload_id as string,
+  bucketId: r.bucket_id as string,
+  s3Key: r.s3_key as string,
+  initiatedAt: new Date(r.initiated_at as string),
+  status: r.status as string,
+  initiatedBy: (r.initiated_by as string | null) || '',
+});
+
+export const listMultipartUploadsByBucket = async (
+  bucketId: string,
+  maxUploads: number,
+  keyMarker: string | null,
+): Promise<{ uploads: MultipartUpload[]; isTruncated: boolean; nextKeyMarker: string | null }> => {
+  const limit = Math.min(Math.max(maxUploads || 1000, 1), 1000);
+  const result = (await db.execute(
+    keyMarker
+      ? sql`SELECT upload_id, bucket_id, s3_key, initiated_at, status, initiated_by
+          FROM multipart_uploads
+          WHERE bucket_id = ${bucketId}::uuid AND status = 'in_progress' AND s3_key > ${keyMarker}
+          ORDER BY s3_key, initiated_at
+          LIMIT ${limit + 1}`
+      : sql`SELECT upload_id, bucket_id, s3_key, initiated_at, status, initiated_by
+          FROM multipart_uploads
+          WHERE bucket_id = ${bucketId}::uuid AND status = 'in_progress'
+          ORDER BY s3_key, initiated_at
+          LIMIT ${limit + 1}`,
+  )) as unknown as Record<string, unknown>[];
+
+  const uploads = result.slice(0, limit).map(mapRowToMultipartUpload);
+  return {
+    uploads,
+    isTruncated: result.length > limit,
+    nextKeyMarker: result.length > limit ? uploads.at(-1)?.s3Key || null : null,
+  };
+};

src/env.ts

@@ -20,6 +20,7 @@ interface AppConfig {
   s3SecretKey: string;
   s3DefaultRegion: string;
   proxyS3Get: boolean;
+  s3VhostDomains: string[];
 }
 
 const requiredEnv = {
@@ -50,6 +51,14 @@ const parseTokens = (value: string | undefined): string[] =>
     .map((t) => t.trim())
     .filter((t) => t !== '');
 
+const parseDomains = (value: string | undefined): string[] =>
+  parseTokens(value).map((domain) =>
+    domain
+      .replace(/^https?:\/\//, '')
+      .split('/')[0]
+      .toLowerCase(),
+  );
+
 const maskSecret = (value: string): string => {
   if (!value) return '';
   if (value.length <= 10) return '***';
@@ -80,6 +89,9 @@ export const config: AppConfig = {
   s3SecretKey: process.env.S3_SECRET_KEY || '',
   s3DefaultRegion: process.env.S3_DEFAULT_REGION || 'us-east-1',
   proxyS3Get: process.env.PROXY_S3_GET !== 'false',
+  s3VhostDomains: parseDomains(
+    process.env.S3_VHOST_DOMAINS || 'upload.asepharyana.my.id,upload.asepharyana.web.id',
+  ),
 };
 
 logger.info('Environment variables loaded', {

src/index.ts

@@ -13,6 +13,7 @@ import logger from './utils/logger';
 import { metricsCollector } from './utils/metrics';
 import { cleanupRateLimitCache, withRateLimit } from './utils/rateLimit';
 import { isS3Request } from './utils/s3/auth';
+import { extractS3BucketFromHost } from './utils/s3/virtual-host';
 
 // ─── Auto-run migration at startup ──────────────────────────────────────────
 try {
@@ -30,6 +31,29 @@ try {
   logger.warn('Auto-migration warning (non-fatal)');
 }
 
+const getS3RouteBucket = (req: Request): string | null => {
+  const host = req.headers.get('host') || '';
+  return extractS3BucketFromHost(host, config.s3VhostDomains);
+};
+
+const shouldHandleS3 = (req: Request, headers: Record<string, string>): boolean => {
+  const url = new URL(req.url);
+  return Boolean(
+    getS3RouteBucket(req) || isS3Request(headers) || url.searchParams.has('X-Amz-Signature'),
+  );
+};
+
+const handleMaybeS3Root = (req: Request): Response | Promise<Response> => {
+  if (req.method === 'OPTIONS') {
+    return handleS3Request(req, getS3RouteBucket(req));
+  }
+  const headers = Object.fromEntries(req.headers);
+  if (shouldHandleS3(req, headers)) {
+    return handleS3Request(req, getS3RouteBucket(req));
+  }
+  return new Response('Not Allowed', { status: 405 });
+};
+
 const server = serve({
   port: config.port,
   routes: {
@@ -54,40 +78,16 @@ const server = serve({
     '/': {
       GET: (req: Request) => {
         const headers = Object.fromEntries(req.headers);
-        const url = new URL(req.url);
+        if (shouldHandleS3(req, headers)) {
-        if (isS3Request(headers) || url.searchParams.has('X-Amz-Signature')) {
+          return handleS3Request(req, getS3RouteBucket(req));
-          return handleS3Request(req);
         }
         return handleHome();
       },
-      PUT: (req: Request) => {
+      PUT: handleMaybeS3Root,
-        const headers = Object.fromEntries(req.headers);
+      HEAD: handleMaybeS3Root,
-        if (isS3Request(headers)) {
+      DELETE: handleMaybeS3Root,
-          return handleS3Request(req);
+      POST: handleMaybeS3Root,
-        }
+      OPTIONS: handleMaybeS3Root,
-        return new Response('Not Allowed', { status: 405 });
-      },
-      HEAD: (req: Request) => {
-        const headers = Object.fromEntries(req.headers);
-        if (isS3Request(headers)) {
-          return handleS3Request(req);
-        }
-        return new Response('Not Allowed', { status: 405 });
-      },
-      DELETE: (req: Request) => {
-        const headers = Object.fromEntries(req.headers);
-        if (isS3Request(headers)) {
-          return handleS3Request(req);
-        }
-        return new Response('Not Allowed', { status: 405 });
-      },
-      POST: (req: Request) => {
-        const headers = Object.fromEntries(req.headers);
-        if (isS3Request(headers)) {
-          return handleS3Request(req);
-        }
-        return new Response('Not Allowed', { status: 405 });
-      },
     },
     '/api/v1/*': {
       GET: handleWebApiV1,
@@ -97,9 +97,12 @@ const server = serve({
     },
   },
   fetch: async (req: Request) => {
+    if (req.method === 'OPTIONS') {
+      return handleS3Request(req, getS3RouteBucket(req));
+    }
     const headers = Object.fromEntries(req.headers);
-    if (isS3Request(headers) || new URL(req.url).searchParams.has('X-Amz-Signature')) {
+    if (shouldHandleS3(req, headers)) {
-      return handleS3Request(req);
+      return handleS3Request(req, getS3RouteBucket(req));
     }
     return new Response('Not Found', { status: 404 });
   },

src/routes/s3.ts

@@ -14,12 +14,14 @@ import {
   findMultipartUpload,
   insertMultipartPart,
   listMultipartParts,
+  listMultipartUploadsByBucket,
 } from '../db/multipart';
 import type { File } from '../db/schema';
 import { config } from '../env';
 import { cleanupTempFile, computeHash, ensureExtension, getErrorMessage } from '../utils/file';
 import logger from '../utils/logger';
 import { verifyPresignedUrl, verifySignature } from '../utils/s3/auth';
+import { S3_CORS_HEADERS, s3Headers } from '../utils/s3/headers';
 import { createGetObjectResponse, type ObjectPartSource } from '../utils/s3/object-stream';
 import { parseRangeHeader, unsatisfiedContentRange } from '../utils/s3/range';
 import {
@@ -30,6 +32,7 @@ import {
   listBucketResultXml,
   listBucketsXml,
   listBucketV2ResultXml,
+  listMultipartUploadsXml,
   listPartsXml,
   parseCompleteMultipartBody,
   parseDeleteObjectsBody,
@@ -40,6 +43,16 @@ import { forwardToStorage, getFileInfo } from '../utils/telegram';
 const REGION = config.s3DefaultRegion || 'us-east-1';
 const REQUEST_ID = () => nanoid(16);
 
+const s3Response = (
+  body: string | null,
+  status: number,
+  reqId: string,
+  extraHeaders: Record<string, string> = {},
+): Response => new Response(body, { status, headers: s3Headers(reqId, extraHeaders) });
+
+const s3OptionsResponse = (): Response =>
+  new Response(null, { status: 204, headers: S3_CORS_HEADERS });
+
 const parseS3Path = (pathname: string): { bucket: string | null; key: string | null } => {
   const parts = pathname.split('/').filter(Boolean);
   if (parts.length === 0) return { bucket: null, key: null };
@@ -57,45 +70,62 @@ const headersToRecord = (req: Request): Record<string, string> => {
 
 // ─────── Main Dispatcher ───────
 
-export const handleS3Request = async (req: Request): Promise<Response> => {
+export const handleS3Request = async (
+  req: Request,
+  virtualHostBucket: string | null = null,
+): Promise<Response> => {
   const method = req.method;
   const url = new URL(req.url);
   const pathname = url.pathname;
-  const { bucket, key } = parseS3Path(pathname);
+  const { bucket, key } = virtualHostBucket
+    ? {
+        bucket: virtualHostBucket,
+        key: pathname === '/' ? null : decodeURIComponent(pathname.slice(1)),
+      }
+    : parseS3Path(pathname);
   const headers = headersToRecord(req);
   const searchParams = url.searchParams;
   const reqId = REQUEST_ID();
 
-  // Presigned URLs: only supported for GET (verified in handleGetObject)
+  if (method === 'OPTIONS') {
-  if (searchParams.has('X-Amz-Signature')) {
+    return s3OptionsResponse();
-    if (method !== 'GET') {
+  }
-      return s3ErrorResponse(
+
-        'AccessDenied',
+  const isPresigned = searchParams.has('X-Amz-Signature');
-        'Presigned URLs only supported for GET',
+  const authResult = isPresigned
-        pathname,
+    ? await verifyPresignedUrl({
-        403,
+        url: req.url,
-        reqId,
+        method,
+        headers,
+        s3AccessKey: config.s3AccessKey,
+        s3SecretKey: config.s3SecretKey,
+        region: REGION,
+      })
+    : await verifySignature(
+        method,
+        req.url,
+        headers,
+        null,
+        config.s3AccessKey,
+        config.s3SecretKey,
+        REGION,
       );
-    }
+
-  } else {
+  if (!authResult.isValid) {
-    const authResult = await verifySignature(
+    const status = authResult.errorCode === 'NotImplemented' ? 501 : 403;
-      method,
+    const message =
-      req.url,
+      authResult.errorCode === 'NotImplemented'
-      headers,
+        ? 'aws-chunked streaming payloads are not supported.'
-      null,
+        : isPresigned
-      config.s3AccessKey,
+          ? 'Presigned URL verification failed'
-      config.s3SecretKey,
+          : 'Authentication required';
-      REGION,
+    return s3ErrorResponse(
+      authResult.errorCode || 'AccessDenied',
+      message,
+      pathname,
+      status,
+      reqId,
     );
-    if (!authResult.isValid) {
-      return s3ErrorResponse(
-        authResult.errorCode || 'AccessDenied',
-        'Authentication required',
-        pathname,
-        403,
-        reqId,
-      );
-    }
   }
 
   try {
@@ -116,6 +146,9 @@ export const handleS3Request = async (req: Request): Promise<Response> => {
     // Bucket-level operations
     if (!key) {
       if (method === 'GET') {
+        if (searchParams.has('uploads')) {
+          return handleListMultipartUploads(bucket, searchParams, reqId);
+        }
         const listType = searchParams.get('list-type');
         if (listType === '2') {
           return handleListObjectsV2(bucket, searchParams, reqId);
@@ -131,7 +164,7 @@ export const handleS3Request = async (req: Request): Promise<Response> => {
           return handleDeleteObjects(bucket, body, reqId);
         }
         if (searchParams.has('tagging')) {
-          return new Response(null, { status: 204 });
+          return s3Response(null, 204, reqId);
         }
       }
       return s3ErrorResponse(
@@ -162,8 +195,7 @@ export const handleS3Request = async (req: Request): Promise<Response> => {
     }
 
     // Standard object operations
-    if (method === 'GET')
+    if (method === 'GET') return handleGetObject(bucket, key, searchParams, headers, reqId);
-      return handleGetObject(bucket, key, searchParams, headers, req.url, reqId);
     if (method === 'HEAD') return handleHeadObject(bucket, key, reqId);
     if (method === 'PUT') return handlePutObject(bucket, key, searchParams, headers, req, reqId);
     if (method === 'DELETE') return handleDeleteObject(bucket, key, reqId);
@@ -192,10 +224,7 @@ export const handleS3Request = async (req: Request): Promise<Response> => {
 const handleListBuckets = async (reqId: string): Promise<Response> => {
   const buckets = await listBuckets();
   const xml = listBucketsXml(buckets, reqId);
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 const handleCreateBucket = async (bucketName: string, reqId: string): Promise<Response> => {
@@ -219,7 +248,7 @@ const handleCreateBucket = async (bucketName: string, reqId: string): Promise<Re
     );
   }
   await createBucket(bucketName);
-  return new Response(null, { status: 200, headers: { 'x-amz-request-id': reqId } });
+  return s3Response(null, 200, reqId);
 };
 
 const handleHeadBucket = async (bucketName: string, reqId: string): Promise<Response> => {
@@ -233,7 +262,7 @@ const handleHeadBucket = async (bucketName: string, reqId: string): Promise<Resp
       reqId,
     );
   }
-  return new Response(null, { status: 200, headers: { 'x-amz-request-id': reqId } });
+  return s3Response(null, 200, reqId);
 };
 
 const handleDeleteBucket = async (bucketName: string, reqId: string): Promise<Response> => {
@@ -258,7 +287,7 @@ const handleDeleteBucket = async (bucketName: string, reqId: string): Promise<Re
     );
   }
   await deleteBucket(bucketName);
-  return new Response(null, { status: 204, headers: { 'x-amz-request-id': reqId } });
+  return s3Response(null, 204, reqId);
 };
 
 // ─────── Object Operations ───────
@@ -266,31 +295,10 @@ const handleDeleteBucket = async (bucketName: string, reqId: string): Promise<Re
 const handleGetObject = async (
   bucket: string,
   key: string,
-  searchParams: URLSearchParams,
+  _searchParams: URLSearchParams,
   headers: Record<string, string>,
-  requestUrl: string,
   reqId: string,
 ): Promise<Response> => {
-  if (searchParams.has('X-Amz-Signature')) {
-    const presignedResult = await verifyPresignedUrl({
-      url: requestUrl,
-      method: 'GET',
-      headers,
-      s3AccessKey: config.s3AccessKey,
-      s3SecretKey: config.s3SecretKey,
-      region: REGION,
-    });
-    if (!presignedResult.isValid) {
-      return s3ErrorResponse(
-        presignedResult.errorCode || 'AccessDenied',
-        'Presigned URL verification failed',
-        `/${bucket}/${key}`,
-        403,
-        reqId,
-      );
-    }
-  }
-
   const bucketRecord = await findBucketByName(bucket);
   if (!bucketRecord)
     return s3ErrorResponse(
@@ -335,10 +343,7 @@ const handleGetObject = async (
 
   if (!config.proxyS3Get) {
     // Legacy 302 redirect path (when proxy is disabled)
-    return new Response(null, {
+    return s3Response(null, 302, reqId, { location: redirectUrl });
-      status: 302,
-      headers: { Location: redirectUrl, 'x-amz-request-id': reqId },
-    });
   }
 
   const part: ObjectPartSource = {
@@ -420,10 +425,7 @@ const handleGetMultipartObject = async (
   }
 
   if (!config.proxyS3Get) {
-    return new Response(null, {
+    return s3Response(null, 302, reqId, { location: sources[0].telegramUrl });
-      status: 302,
-      headers: { Location: sources[0].telegramUrl, 'x-amz-request-id': reqId },
-    });
   }
 
   try {
@@ -472,16 +474,14 @@ const handleHeadObject = async (bucket: string, key: string, reqId: string): Pro
       reqId,
     );
 
-  return new Response(null, {
+  return s3Response(null, 200, reqId, {
-    status: 200,
+    'content-type': file.mimeType,
-    headers: {
+    'content-length': String(file.sizeBytes),
-      'content-type': file.mimeType,
+    etag: `"${file.fileHash || nanoid(16)}"`,
-      'content-length': String(file.sizeBytes),
+    'last-modified':
-      etag: `"${file.fileHash || nanoid(16)}"`,
+      file.createdAt instanceof Date ? file.createdAt.toUTCString() : new Date().toUTCString(),
-      'last-modified':
+    'accept-ranges': 'bytes',
-        file.createdAt instanceof Date ? file.createdAt.toUTCString() : new Date().toUTCString(),
+    'cache-control': 'public, max-age=31536000',
-      'x-amz-request-id': reqId,
-    },
   });
 };
 
@@ -504,12 +504,12 @@ const handlePutObject = async (
     );
 
   if (searchParams.has('tagging')) {
-    return new Response(null, { status: 204 });
+    return s3Response(null, 204, reqId);
   }
 
   const copySource = headers['x-amz-copy-source'];
   if (copySource) {
-    return handleCopyObject(bucket, key, copySource, bucketRecord.id, reqId);
+    return handleCopyObject(bucket, key, copySource, headers, bucketRecord.id, reqId);
   }
 
   // Read raw body — S3 clients send raw binary, not multipart/form-data
@@ -520,10 +520,7 @@ const handlePutObject = async (
 
   const existing = await findFileByBucketAndKey(bucketRecord.id, key);
   if (existing) {
-    return new Response(null, {
+    return s3Response(null, 200, reqId, { etag: `"${hash}"` });
-      status: 200,
-      headers: { etag: `"${hash}"`, 'x-amz-request-id': reqId },
-    });
   }
 
   return await storeFileToTelegram(fileBuffer, hash, key, bucketRecord, contentType, reqId);
@@ -579,19 +576,18 @@ const storeFileToTelegram = async (
 
   await cleanupTempFile(tempPath);
 
-  return new Response(null, {
+  return s3Response(null, 200, reqId, { etag: `"${hash}"` });
-    status: 200,
-    headers: { etag: `"${hash}"`, 'x-amz-request-id': reqId },
-  });
 };
 
 const handleCopyObject = async (
   _destBucket: string,
   destKey: string,
-  copySource: string,
+  rawCopySource: string,
+  headers: Record<string, string>,
   destBucketId: string,
   reqId: string,
 ): Promise<Response> => {
+  const copySource = decodeURIComponent(rawCopySource);
   const sourcePath = copySource.startsWith('/') ? copySource.slice(1) : copySource;
   const parts = sourcePath.split('/');
   const sourceBucket = parts[0];
@@ -617,6 +613,28 @@ const handleCopyObject = async (
       reqId,
     );
 
+  // Conditional copy: if-match / if-none-match checks
+  const ifMatch = headers['x-amz-copy-source-if-match'];
+  const ifNoneMatch = headers['x-amz-copy-source-if-none-match'];
+  if (ifMatch && sourceFile.fileHash && ifMatch !== `"${sourceFile.fileHash}"`) {
+    return s3ErrorResponse(
+      'PreconditionFailed',
+      'The preconditions you specified did not hold.',
+      copySource,
+      412,
+      reqId,
+    );
+  }
+  if (ifNoneMatch && sourceFile.fileHash && ifNoneMatch === `"${sourceFile.fileHash}"`) {
+    return s3ErrorResponse(
+      'PreconditionFailed',
+      'The preconditions you specified did not hold.',
+      copySource,
+      412,
+      reqId,
+    );
+  }
+
   const publicId = nanoid();
   const { db, files: fileSchema } = await import('../db/index');
 
@@ -641,10 +659,7 @@ const handleCopyObject = async (
   });
 
   const xml = copyObjectResultXml(sourceFile.fileHash || nanoid(16), new Date());
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 const handleDeleteObject = async (
@@ -663,7 +678,7 @@ const handleDeleteObject = async (
     );
 
   await softDeleteFile(bucketRecord.id, key);
-  return new Response(null, { status: 204, headers: { 'x-amz-request-id': reqId } });
+  return s3Response(null, 204, reqId);
 };
 
 const handleDeleteObjects = async (
@@ -681,17 +696,14 @@ const handleDeleteObjects = async (
       reqId,
     );
 
-  const { keys } = parseDeleteObjectsBody(body);
+  const { keys, quiet } = parseDeleteObjectsBody(body);
   const deletedKeys: string[] = [];
   for (const key of keys) {
     const ok = await softDeleteFile(bucketRecord.id, key);
     if (ok) deletedKeys.push(key);
   }
-  const xml = deleteResultXml(deletedKeys, []);
+  const xml = quiet ? deleteResultXml([], []) : deleteResultXml(deletedKeys, []);
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 // ─────── Object Listing ───────
@@ -715,6 +727,7 @@ const handleListObjectsV1 = async (
   const delimiter = searchParams.get('delimiter') || null;
   const maxKeys = Math.min(parseInt(searchParams.get('max-keys') || '1000', 10), 1000);
   const marker = searchParams.get('marker') || null;
+  const encodingType = searchParams.get('encoding-type') || null;
 
   const { objects, prefixes: commonPrefixes } = await listObjectsByPrefix(
     bucketRecord.id,
@@ -747,12 +760,10 @@ const handleListObjectsV1 = async (
     delimiter,
     nextMarker,
     reqId,
+    encodingType,
   );
 
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 const handleListObjectsV2 = async (
@@ -775,6 +786,7 @@ const handleListObjectsV2 = async (
   const maxKeys = Math.min(parseInt(searchParams.get('max-keys') || '1000', 10), 1000);
   const continuationToken = searchParams.get('continuation-token') || null;
   const startAfter = searchParams.get('start-after') || null;
+  const encodingType = searchParams.get('encoding-type') || null;
 
   const { objects, prefixes: commonPrefixes } = await listObjectsByPrefix(
     bucketRecord.id,
@@ -808,12 +820,10 @@ const handleListObjectsV2 = async (
     nextContinuationToken,
     displayObjects.length,
     reqId,
+    encodingType,
   );
 
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 // ─────── Multipart Upload ───────
@@ -837,10 +847,7 @@ const handleCreateMultipartUpload = async (
   const uploadId = await createMultipartUpload(bucketRecord.id, key, 's3');
 
   const xml = initiateMultipartUploadXml(bucket, key, uploadId);
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };
 
 const handleUploadPart = async (
@@ -852,6 +859,15 @@ const handleUploadPart = async (
 ): Promise<Response> => {
   const uploadId = searchParams.get('uploadId')!;
   const partNumber = parseInt(searchParams.get('partNumber')!, 10);
+  if (partNumber < 1 || partNumber > 10000) {
+    return s3ErrorResponse(
+      'InvalidArgument',
+      'Part number must be an integer between 1 and 10000',
+      `/${bucket}/${key}`,
+      400,
+      reqId,
+    );
+  }
 
   const multipart = await findMultipartUpload(uploadId);
   if (!multipart || multipart.s3Key !== key) {
@@ -889,10 +905,7 @@ const handleUploadPart = async (
     etag,
   });
 
-  return new Response(null, {
+  return s3Response(null, 200, reqId, { etag: `"${etag}"` });
-    status: 200,
-    headers: { etag: `"${etag}"`, 'x-amz-request-id': reqId },
-  });
 };
 
 const handleCompleteMultipartUpload = async (
@@ -917,6 +930,33 @@ const handleCompleteMultipartUpload = async (
   const parts = parseCompleteMultipartBody(body);
   const storedParts = await listMultipartParts(uploadId);
 
+  // Validate parts match stored parts in ascending order and correct ETags
+  const sortedParts = [...parts].sort((a, b) => a.partNumber - b.partNumber);
+  for (let i = 0; i < sortedParts.length; i++) {
+    if (sortedParts[i].partNumber !== i + 1) {
+      return s3ErrorResponse(
+        'InvalidPartOrder',
+        'The list of parts was not in ascending order. Parts must be ordered by part number.',
+        `/${bucket}/${key}`,
+        400,
+        reqId,
+      );
+    }
+  }
+  const storedMap = new Map(storedParts.map((p) => [p.partNumber, p]));
+  for (const part of parts) {
+    const stored = storedMap.get(part.partNumber);
+    if (!stored || stored.etag !== part.etag) {
+      return s3ErrorResponse(
+        'InvalidPart',
+        'One or more specified parts could not be found. The part might not have been uploaded, or the specified ETag might not match.',
+        `/${bucket}/${key}`,
+        400,
+        reqId,
+      );
+    }
+  }
+
   if (parts.length !== storedParts.length) {
     return s3ErrorResponse(
       'InvalidPart',
@@ -958,10 +998,47 @@ const handleCompleteMultipartUpload = async (
   const combinedEtag = storedParts.map((p) => p.etag).join('-');
   const xml = completeMultipartUploadXml(bucket, key, combinedEtag, location);
 
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
+};
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
+
-  });
+const handleListMultipartUploads = async (
+  bucket: string,
+  searchParams: URLSearchParams,
+  reqId: string,
+): Promise<Response> => {
+  const bucketRecord = await findBucketByName(bucket);
+  if (!bucketRecord)
+    return s3ErrorResponse(
+      'NoSuchBucket',
+      'The specified bucket does not exist.',
+      `/${bucket}`,
+      404,
+      reqId,
+    );
+
+  const maxUploads = Math.min(parseInt(searchParams.get('max-uploads') || '1000', 10), 1000);
+  const keyMarker = searchParams.get('key-marker') || null;
+  const { uploads, isTruncated, nextKeyMarker } = await listMultipartUploadsByBucket(
+    bucketRecord.id,
+    maxUploads,
+    keyMarker,
+  );
+
+  const xml = listMultipartUploadsXml(
+    bucket,
+    uploads.map((u) => ({
+      key: u.s3Key,
+      uploadId: u.uploadId,
+      initiatedAt: u.initiatedAt,
+      initiatedBy: u.initiatedBy,
+    })),
+    maxUploads,
+    isTruncated,
+    nextKeyMarker,
+    reqId,
+  );
+
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
 };
 
 const handleAbortMultipartUpload = async (
@@ -983,7 +1060,7 @@ const handleAbortMultipartUpload = async (
   }
 
   await abortMultipartUpload(uploadId);
-  return new Response(null, { status: 204, headers: { 'x-amz-request-id': reqId } });
+  return s3Response(null, 204, reqId);
 };
 
 const handleListParts = async (
@@ -1022,8 +1099,5 @@ const handleListParts = async (
     reqId,
   );
 
-  return new Response(xml, {
+  return s3Response(xml, 200, reqId, { 'content-type': 'application/xml' });
-    status: 200,
-    headers: { 'content-type': 'application/xml', 'x-amz-request-id': reqId },
-  });
 };

src/utils/s3/auth.ts

@@ -174,6 +174,9 @@ export const verifySignature = async (
   const canonicalQueryString = buildCanonicalQueryString(parsedUrl.searchParams);
 
   const contentSha256 = headers['x-amz-content-sha256'] || null;
+  if (contentSha256?.startsWith('STREAMING-')) {
+    return { isValid: false, credential: null, errorCode: 'NotImplemented' };
+  }
   const hashedPayload = await getHashedPayload(body, contentSha256);
 
   const canonicalRequest = buildCanonicalRequest(

src/utils/s3/headers.ts

@@ -0,0 +1,44 @@
+export const S3_CORS_HEADERS: Record<string, string> = {
+  'access-control-allow-origin': '*',
+  'access-control-allow-methods': 'GET, PUT, HEAD, DELETE, POST, OPTIONS',
+  'access-control-allow-headers': [
+    'Authorization',
+    'Content-Type',
+    'Content-MD5',
+    'Range',
+    'If-Match',
+    'If-None-Match',
+    'If-Modified-Since',
+    'If-Unmodified-Since',
+    'X-Amz-*',
+    'x-amz-*',
+  ].join(', '),
+  'access-control-expose-headers': [
+    'Accept-Ranges',
+    'Content-Length',
+    'Content-Range',
+    'Content-Type',
+    'ETag',
+    'Last-Modified',
+    'x-amz-id-2',
+    'x-amz-request-id',
+  ].join(', '),
+  'access-control-max-age': '86400',
+};
+
+export const s3Headers = (
+  requestId: string,
+  extraHeaders: Record<string, string> = {},
+): Record<string, string> => ({
+  ...S3_CORS_HEADERS,
+  ...(requestId ? { 'x-amz-request-id': requestId, 'x-amz-id-2': requestId } : {}),
+  ...extraHeaders,
+});
+
+export const applyS3Headers = (headers: Headers, requestId: string): Headers => {
+  const result = new Headers(headers);
+  for (const [key, value] of Object.entries(s3Headers(requestId))) {
+    result.set(key, value);
+  }
+  return result;
+};

src/utils/s3/object-stream.ts

@@ -1,3 +1,4 @@
+import { applyS3Headers } from './headers';
 import { contentRange, type RangeParseResult } from './range';
 
 export interface ObjectPartSource {
@@ -97,7 +98,7 @@ export const createGetObjectResponse = async (input: ObjectResponseInput): Promi
   const end = input.range.type === 'valid' ? input.range.end : input.totalSize - 1;
   const plannedParts = planParts(input.parts, start, end);
   const contentLength = end >= start ? end - start + 1 : 0;
-  const headers = baseHeaders(input, contentLength);
+  const headers = applyS3Headers(baseHeaders(input, contentLength), input.reqId);
 
   if (input.range.type === 'valid') {
     headers.set('content-range', contentRange(start, end, input.totalSize));

src/utils/s3/virtual-host.ts

@@ -0,0 +1,23 @@
+const stripPort = (host: string): string => {
+  if (host.startsWith('[')) return host;
+  return host.split(':')[0].toLowerCase().replace(/\.$/, '');
+};
+
+const isValidBucketLabel = (bucket: string): boolean =>
+  /^[a-z0-9][a-z0-9.-]{1,61}[a-z0-9]$/.test(bucket) &&
+  !bucket.includes('..') &&
+  !bucket.includes('.-') &&
+  !bucket.includes('-.');
+
+export const extractS3BucketFromHost = (host: string, domains: string[]): string | null => {
+  const normalizedHost = stripPort(host);
+  for (const domain of domains) {
+    const normalizedDomain = stripPort(domain);
+    if (!normalizedDomain || normalizedHost === normalizedDomain) continue;
+    if (!normalizedHost.endsWith(`.${normalizedDomain}`)) continue;
+
+    const bucket = normalizedHost.slice(0, -(normalizedDomain.length + 1));
+    return isValidBucketLabel(bucket) ? bucket : null;
+  }
+  return null;
+};

src/utils/s3/xml.ts

@@ -1,3 +1,5 @@
+import { s3Headers } from './headers';
+
 const escapeXml = (str: string): string =>
   str
     .replace(/&/g, '&')
@@ -8,6 +10,9 @@ const escapeXml = (str: string): string =>
 
 const isoDate = (d: Date): string => d.toISOString().replace(/\.\d{3}Z$/, 'Z');
 
+const encodeKey = (value: string, encodingType: string | null = null): string =>
+  encodingType === 'url' ? encodeURIComponent(value) : escapeXml(value);
+
 // ─────── Bucket operations ───────
 
 export const listBucketsXml = (
@@ -40,18 +45,20 @@ export const listBucketResultXml = (
   delimiter: string | null,
   nextMarker: string | null,
   _requestId: string,
+  encodingType: string | null = null,
 ): string => `<?xml version="1.0" encoding="UTF-8"?>
 <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
   <Name>${escapeXml(bucketName)}</Name>
-  <Prefix>${escapeXml(prefix)}</Prefix>
+  <Prefix>${encodeKey(prefix, encodingType)}</Prefix>
-  <Marker>${escapeXml(marker || '')}</Marker>
+  <Marker>${encodeKey(marker || '', encodingType)}</Marker>
   <MaxKeys>${maxKeys}</MaxKeys>
-  <Delimiter>${escapeXml(delimiter || '')}</Delimiter>
+  <Delimiter>${encodeKey(delimiter || '', encodingType)}</Delimiter>
+  ${encodingType ? `<EncodingType>${escapeXml(encodingType)}</EncodingType>` : ''}
   <IsTruncated>${isTruncated}</IsTruncated>
   ${objects
     .map(
       (o) => `<Contents>
-    <Key>${escapeXml(o.key)}</Key>
+    <Key>${encodeKey(o.key, encodingType)}</Key>
     <LastModified>${isoDate(o.lastModified)}</LastModified>
     <ETag>"${o.etag}"</ETag>
     <Size>${o.sizeBytes}</Size>
@@ -62,11 +69,11 @@ export const listBucketResultXml = (
   ${prefixes
     .map(
       (p) => `<CommonPrefixes>
-    <Prefix>${escapeXml(p)}</Prefix>
+    <Prefix>${encodeKey(p, encodingType)}</Prefix>
   </CommonPrefixes>`,
     )
     .join('')}
-  ${nextMarker ? `<NextMarker>${escapeXml(nextMarker)}</NextMarker>` : ''}
+  ${nextMarker ? `<NextMarker>${encodeKey(nextMarker, encodingType)}</NextMarker>` : ''}
 </ListBucketResult>`;
 
 export const listBucketV2ResultXml = (
@@ -81,19 +88,21 @@ export const listBucketV2ResultXml = (
   nextContinuationToken: string | null,
   keyCount: number,
   _requestId: string,
+  encodingType: string | null = null,
 ): string => `<?xml version="1.0" encoding="UTF-8"?>
 <ListBucketResultV2 xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
   <Name>${escapeXml(bucketName)}</Name>
-  <Prefix>${escapeXml(prefix)}</Prefix>
+  <Prefix>${encodeKey(prefix, encodingType)}</Prefix>
   <MaxKeys>${maxKeys}</MaxKeys>
   <KeyCount>${keyCount}</KeyCount>
-  ${delimiter ? `<Delimiter>${escapeXml(delimiter)}</Delimiter>` : ''}
+  ${delimiter ? `<Delimiter>${encodeKey(delimiter, encodingType)}</Delimiter>` : ''}
-  ${continuationToken ? `<ContinuationToken>${escapeXml(continuationToken)}</ContinuationToken>` : ''}
+  ${encodingType ? `<EncodingType>${escapeXml(encodingType)}</EncodingType>` : ''}
+  ${continuationToken ? `<ContinuationToken>${encodeKey(continuationToken, encodingType)}</ContinuationToken>` : ''}
   <IsTruncated>${isTruncated}</IsTruncated>
   ${objects
     .map(
       (o) => `<Contents>
-    <Key>${escapeXml(o.key)}</Key>
+    <Key>${encodeKey(o.key, encodingType)}</Key>
     <LastModified>${isoDate(o.lastModified)}</LastModified>
     <ETag>"${o.etag}"</ETag>
     <Size>${o.sizeBytes}</Size>
@@ -104,11 +113,11 @@ export const listBucketV2ResultXml = (
   ${prefixes
     .map(
       (p) => `<CommonPrefixes>
-    <Prefix>${escapeXml(p)}</Prefix>
+    <Prefix>${encodeKey(p, encodingType)}</Prefix>
   </CommonPrefixes>`,
     )
     .join('')}
-  ${nextContinuationToken ? `<NextContinuationToken>${escapeXml(nextContinuationToken)}</NextContinuationToken>` : ''}
+  ${nextContinuationToken ? `<NextContinuationToken>${encodeKey(nextContinuationToken, encodingType)}</NextContinuationToken>` : ''}
 </ListBucketResultV2>`;
 
 // ─────── Multipart ───────
@@ -151,6 +160,35 @@ export const listPartsXml = (
     .join('')}
 </ListPartsResult>`;
 
+export const listMultipartUploadsXml = (
+  bucketName: string,
+  uploads: { key: string; uploadId: string; initiatedAt: Date; initiatedBy: string }[],
+  maxUploads: number,
+  isTruncated: boolean,
+  nextKeyMarker: string | null,
+  _requestId: string,
+): string => `<?xml version="1.0" encoding="UTF-8"?>
+<ListMultipartUploadsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+  <Bucket>${escapeXml(bucketName)}</Bucket>
+  <KeyMarker></KeyMarker>
+  <UploadIdMarker></UploadIdMarker>
+  ${nextKeyMarker ? `<NextKeyMarker>${escapeXml(nextKeyMarker)}</NextKeyMarker>` : ''}
+  <MaxUploads>${maxUploads}</MaxUploads>
+  <IsTruncated>${isTruncated}</IsTruncated>
+  ${uploads
+    .map(
+      (u) => `<Upload>
+    <Key>${escapeXml(u.key)}</Key>
+    <UploadId>${u.uploadId}</UploadId>
+    <Initiator><ID>${escapeXml(u.initiatedBy || 's3')}</ID><DisplayName>${escapeXml(u.initiatedBy || 's3')}</DisplayName></Initiator>
+    <Owner><ID>${escapeXml(u.initiatedBy || 's3')}</ID><DisplayName>${escapeXml(u.initiatedBy || 's3')}</DisplayName></Owner>
+    <StorageClass>STANDARD</StorageClass>
+    <Initiated>${isoDate(u.initiatedAt)}</Initiated>
+  </Upload>`,
+    )
+    .join('')}
+</ListMultipartUploadsResult>`;
+
 export const completeMultipartUploadXml = (
   bucketName: string,
   key: string,
@@ -213,6 +251,7 @@ export const s3ErrorXml = (
   <Message>${escapeXml(message)}</Message>
   <Resource>${escapeXml(resource)}</Resource>
   <RequestId>${requestId}</RequestId>
+  <HostId>${requestId}</HostId>
 </Error>`;
 
 export const s3ErrorResponse = (
@@ -225,11 +264,10 @@ export const s3ErrorResponse = (
 ): Response =>
   new Response(s3ErrorXml(code, message, resource, requestId), {
     status,
-    headers: {
+    headers: s3Headers(requestId, {
       'content-type': 'application/xml',
-      ...(requestId ? { 'x-amz-request-id': requestId } : {}),
       ...extraHeaders,
-    },
+    }),
   });
 
 // ─────── DeleteObjects XML parser ───────