mirror of
https://github.com/infinite-iroha/touka.git
synced 2026-02-03 00:41:10 +08:00
33e5d5474d
This commit introduces a new, high-performance, and extensible WebDAV submodule, implemented natively without external dependencies. The submodule includes: - A core WebDAV handler that supports essential methods: PROPFIND, MKCOL, GET, PUT, DELETE, COPY, MOVE, LOCK, and UNLOCK. - An extensible design using a `FileSystem` interface to decouple the protocol logic from the storage backend. - Two `FileSystem` implementations: - `MemFS`: An in-memory, tree-based filesystem for testing and ephemeral storage. - `OSFS`: A secure, OS-based filesystem that interacts with the local disk and includes path traversal protection. - A `LockSystem` interface with an in-memory implementation (`MemLock`) to support resource locking (DAV Class 2). - Comprehensive unit tests covering all major functionalities. - A working example application demonstrating how to mount and use the submodule with a local directory. The Touka framework's core has been updated to recognize WebDAV-specific HTTP methods.
90 lines
1.9 KiB
Go
90 lines
1.9 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
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// file, You can obtain one at https://mozilla.org/MPL/2.0/.
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// Copyright 2024 WJQSERVER. All rights reserved.
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// All rights reserved by WJQSERVER, related rights can be exercised by the infinite-iroha organization.
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package webdav
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import (
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"context"
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"crypto/rand"
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"encoding/hex"
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"os"
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"sync"
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"time"
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)
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// MemLock is an in-memory lock system for WebDAV.
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type MemLock struct {
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mu sync.RWMutex
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locks map[string]*lock
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}
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type lock struct {
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token string
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path string
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expires time.Time
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info LockInfo
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}
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// NewMemLock creates a new in-memory lock system.
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func NewMemLock() *MemLock {
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l := &MemLock{
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locks: make(map[string]*lock),
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}
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go l.cleanup()
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return l
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}
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func (l *MemLock) cleanup() {
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for {
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time.Sleep(1 * time.Minute)
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l.mu.Lock()
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for token, lock := range l.locks {
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if time.Now().After(lock.expires) {
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delete(l.locks, token)
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}
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}
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l.mu.Unlock()
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}
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}
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// Create creates a new lock.
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func (l *MemLock) Create(ctx context.Context, path string, info LockInfo) (string, error) {
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l.mu.Lock()
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defer l.mu.Unlock()
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token := make([]byte, 16)
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if _, err := rand.Read(token); err != nil {
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return "", err
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}
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tokenStr := hex.EncodeToString(token)
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l.locks[tokenStr] = &lock{
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token: tokenStr,
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path: path,
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expires: time.Now().Add(info.Timeout),
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info: info,
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}
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return tokenStr, nil
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}
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// Refresh refreshes an existing lock.
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func (l *MemLock) Refresh(ctx context.Context, token string, timeout time.Duration) error {
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l.mu.Lock()
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defer l.mu.Unlock()
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if lock, ok := l.locks[token]; ok {
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lock.expires = time.Now().Add(timeout)
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return nil
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}
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return os.ErrNotExist
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}
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// Unlock removes a lock.
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func (l *MemLock) Unlock(ctx context.Context, token string) error {
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l.mu.Lock()
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defer l.mu.Unlock()
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delete(l.locks, token)
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return nil
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}
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