seaweedFS/test/tus/README.md

TUS Protocol Integration Tests

This directory contains integration tests for the TUS (resumable upload) protocol support in SeaweedFS Filer.

Overview

TUS is an open protocol for resumable file uploads over HTTP. It allows clients to upload files in chunks and resume uploads after network failures or interruptions.

Why TUS?

• Resumable uploads: Resume interrupted uploads without re-sending data
• Chunked uploads: Upload large files in smaller pieces
• Simple protocol: Standard HTTP methods with custom headers
• Wide client support: Libraries available for JavaScript, Python, Go, and more

TUS Protocol Endpoints

Method	Path	Description
OPTIONS	/.tus/	Server capability discovery
POST	/.tus/{path}	Create new upload session
HEAD	/.tus/.uploads/{id}	Get current upload offset
PATCH	/.tus/.uploads/{id}	Upload data at offset
DELETE	/.tus/.uploads/{id}	Cancel upload

TUS Headers

Request Headers:

• Tus-Resumable: 1.0.0 - Protocol version (required)
• Upload-Length - Total file size in bytes (required on POST)
• Upload-Offset - Current byte offset (required on PATCH)
• Upload-Metadata - Base64-encoded key-value pairs (optional)
• Content-Type: application/offset+octet-stream (required on PATCH)

Response Headers:

• Tus-Resumable - Protocol version
• Tus-Version - Supported versions
• Tus-Extension - Supported extensions
• Tus-Max-Size - Maximum upload size
• Upload-Offset - Current byte offset
• Location - Upload URL (on POST)

Enabling TUS

TUS protocol support is enabled by default at /.tus path. You can customize the path using the -tusBasePath flag:

# Start filer with default TUS path (/.tus)
weed filer -master=localhost:9333

# Use a custom path (leading slash added automatically if missing)
weed filer -master=localhost:9333 -tusBasePath=/.uploads/tus

# Disable TUS by setting empty path
weed filer -master=localhost:9333 -tusBasePath=

Test Structure

Integration Tests

The tests cover:

1. Basic Functionality

   • TestTusOptionsHandler - Capability discovery
   • TestTusBasicUpload - Simple complete upload
   • TestTusCreationWithUpload - Creation-with-upload extension

2. Chunked Uploads

   • TestTusChunkedUpload - Upload in multiple chunks

3. Resumable Uploads

   • TestTusHeadRequest - Offset tracking
   • TestTusResumeAfterInterruption - Resume after failure

4. Error Handling

   • TestTusInvalidOffset - Offset mismatch (409 Conflict)
   • TestTusUploadNotFound - Missing upload (404 Not Found)
   • TestTusDeleteUpload - Upload cancellation

Running Tests

Prerequisites

1. Build SeaweedFS:

make build-weed
# or
cd ../../weed && go build -o weed

Using Makefile

# Show available targets
make help

# Run all tests with automatic server management
make test-with-server

# Run all tests (requires running server)
make test

# Run specific test categories
make test-basic      # Basic upload tests
make test-chunked    # Chunked upload tests
make test-resume     # Resume/HEAD tests
make test-errors     # Error handling tests

# Manual testing
make manual-start    # Start SeaweedFS for manual testing
make manual-stop     # Stop and cleanup

Using Go Test Directly

# Run all TUS tests
go test -v ./test/tus/...

# Run specific test
go test -v ./test/tus -run TestTusBasicUpload

# Skip integration tests (short mode)
go test -v -short ./test/tus/...

Debug

# View server logs
make debug-logs

# Check process and port status
make debug-status

Test Environment

Each test run:

1. Starts a SeaweedFS cluster (master, volume, filer)
2. Creates uploads using TUS protocol
3. Verifies files are stored correctly
4. Cleans up test data

Default Ports

Service	Port
Master	19333
Volume	18080
Filer	18888

Configuration

Override defaults via environment or Makefile variables:

FILER_PORT=8889 MASTER_PORT=9334 make test

Example Usage

Create Upload

curl -X POST http://localhost:18888/.tus/mydir/file.txt \
  -H "Tus-Resumable: 1.0.0" \
  -H "Upload-Length: 1000" \
  -H "Upload-Metadata: filename dGVzdC50eHQ="

Upload Data

curl -X PATCH http://localhost:18888/.tus/.uploads/{upload-id} \
  -H "Tus-Resumable: 1.0.0" \
  -H "Upload-Offset: 0" \
  -H "Content-Type: application/offset+octet-stream" \
  --data-binary @file.txt

Check Offset

curl -I http://localhost:18888/.tus/.uploads/{upload-id} \
  -H "Tus-Resumable: 1.0.0"

Cancel Upload

curl -X DELETE http://localhost:18888/.tus/.uploads/{upload-id} \
  -H "Tus-Resumable: 1.0.0"

TUS Extensions Supported

• creation: Create new uploads with POST
• creation-with-upload: Send data in creation request
• termination: Cancel uploads with DELETE

Architecture

Client                         Filer                      Volume Servers
  |                              |                              |
  |-- POST /.tus/path/file.mp4 ->|                              |
  |                              |-- Create session dir ------->|
  |<-- 201 Location: /.../{id} --|                              |
  |                              |                              |
  |-- PATCH /.tus/.uploads/{id} >|                              |
  |   Upload-Offset: 0           |-- Assign volume ------------>|
  |   [chunk data]               |-- Upload chunk ------------->|
  |<-- 204 Upload-Offset: N -----|                              |
  |                              |                              |
  |   (network failure)          |                              |
  |                              |                              |
  |-- HEAD /.tus/.uploads/{id} ->|                              |
  |<-- Upload-Offset: N ---------|                              |
  |                              |                              |
  |-- PATCH (resume) ----------->|-- Upload remaining -------->|
  |<-- 204 (complete) -----------|-- Assemble final file ----->|

Comparison with S3 Multipart

Feature	TUS	S3 Multipart
Protocol	Custom HTTP headers	S3 API
Session Init	POST with Upload-Length	CreateMultipartUpload
Upload Data	PATCH with offset	UploadPart with partNumber
Resume	HEAD to get offset	ListParts
Complete	Automatic at final offset	CompleteMultipartUpload
Ordering	Sequential (offset-based)	Parallel (part numbers)

Related Resources

• TUS Protocol Specification
• tus-js-client - JavaScript client
• go-tus - Go client
• SeaweedFS S3 API - Alternative multipart upload