touka/webdav/easy.go
google-labs-jules[bot] 26cbf45074 feat: add native WebDAV submodule with usability helpers and fixes
This commit introduces a new, high-performance, and extensible WebDAV submodule, implemented natively without external dependencies. It also adds a high-level API to simplify common use cases and incorporates numerous fixes based on detailed code reviews.

Features:
- A core WebDAV handler supporting `PROPFIND`, `MKCOL`, `GET`, `PUT`, `DELETE`, `COPY`, `MOVE`, `LOCK`, `UNLOCK`.
- An extensible design with `FileSystem` and `LockSystem` interfaces.
- `MemFS`: A robust, tree-based in-memory filesystem for testing.
- `OSFS`: A secure OS-based filesystem with protection against path traversal and symlink attacks.
- `MemLock`: An in-memory locking system with graceful shutdown to prevent resource leaks.
- A high-level API (`webdav.Serve`, `webdav.Register`) for ease of use.

Fixes & Improvements:
- Security: Patched directory traversal and symlink vulnerabilities. Ensured secure lock token generation.
- RFC Compliance: Corrected status codes for `COPY`/`MOVE` (201 vs 204), `DELETE` on non-empty collections (409), and `Timeout` header parsing.
- Performance: Implemented `sync.Pool` for object reuse and `sync/atomic` for file size management to reduce GC pressure.
- Robustness: Fixed numerous bugs related to path handling, resource cleanup (goroutine leaks), and header parsing.

Integration:
- The Touka framework's core has been updated to recognize all necessary WebDAV methods.
- Includes comprehensive unit tests and a working example.
2025-12-11 07:33:34 +00:00

47 lines
1.3 KiB
Go

// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
// Copyright 2024 WJQSERVER. All rights reserved.
// All rights reserved by WJQSERVER, related rights can be exercised by the infinite-iroha organization.
package webdav
import (
"io"
"log"
"os"
"github.com/infinite-iroha/touka"
)
// Config is a configuration for the WebDAV handler.
type Config struct {
FileSystem FileSystem
LockSystem LockSystem
Logger Logger
}
// Register registers a WebDAV handler on the given router.
func Register(engine *touka.Engine, prefix string, cfg *Config) {
handler := NewHandler(prefix, cfg.FileSystem, cfg.LockSystem, cfg.Logger)
webdavMethods := []string{
"OPTIONS", "GET", "HEAD", "DELETE", "PUT", "MKCOL", "COPY", "MOVE", "PROPFIND", "PROPPATCH", "LOCK", "UNLOCK",
}
engine.HandleFunc(webdavMethods, prefix+"/*path", handler.ServeTouka)
}
// Serve serves a local directory via WebDAV.
func Serve(engine *touka.Engine, prefix string, rootDir string) (io.Closer, error) {
fs, err := NewOSFS(rootDir)
if err != nil {
return nil, err
}
ls := NewMemLock()
cfg := &Config{
FileSystem: fs,
LockSystem: ls,
Logger: log.New(os.Stdout, "", 0),
}
Register(engine, prefix, cfg)
return ls, nil
}