16 Commits

Author SHA1 Message Date
xfy
27e00b84a8 fix(proxy,handler,server,stream,ratelimit): fix resource leaks and functional bugs
- proxy/proxy.go: decrement connection count on dangerous path rejection
  (line 724) to prevent connection count leak
- handler/sendfile_linux.go: return *os.File from getSocketFile and let
  linuxSendfile close it, fixing EBADF from deferred close in getSocketFd
- proxy/websocket.go: return bufio.Reader from readWebSocketUpgradeResponse
  and wrap targetConn with bufferedConn to consume pre-buffered frame data,
  preventing first-frame loss
- server/pool.go: use non-blocking send after starting new worker to avoid
  deadlock when queue is full
- stream/stream.go: check stopCh on non-timeout UDP read errors to prevent
  infinite loop and shutdown deadlock
- middleware/ratelimit: replace select-based close guard with sync.Once in
  StopCleanup to prevent double-close panic
2026-06-11 16:35:10 +08:00
xfy
144e101c09 feat(proxy): add configurable X-Forwarded-Host and X-Forwarded-Proto headers
Add `set_forwarded_host` and `set_forwarded_proto` options to control
whether the proxy automatically sets these headers. This fixes issues
with upstream servers that validate X-Forwarded-Host against known hosts.

Changes:
- Add SetForwardedHost/SetForwardedProto fields to ProxyHeaders struct
- Modify SetForwardedHeaders and WriteForwardedHeaders function signatures
- Update modifyRequestHeaders to read config and pass control parameters
- Update WebSocket call chain to support new config
- Add unit tests for new functionality
- Update default config generation (-g) to include new options

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-07 13:28:28 +08:00
xfy
b1e1547e36 fix(lint): resolve errcheck and goconst issues
- Add nolint comments for sync.Pool.Get() type assertions (pool always returns valid pointers)
- Extract TLS version strings to constants in sslutil/tlsconfig.go
- Extract expires directive strings to constants in handler/static.go

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-30 13:41:15 +08:00
xfy
f145a8770e refactor: modernize code with Go 1.22+ features
Apply modern Go patterns across the codebase:
- Replace `interface{}` with `any` (Go 1.18+)
- Use `for range n` instead of `for i := 0; i < n; i++` (Go 1.22+)
- Replace `sort.Slice` with `slices.Sort` from slices package
- Simplify sync.WaitGroup patterns with errgroup where appropriate
- Add Makefile targets for modernize analyzer

Total: 84 files updated, net reduction of 79 lines

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-30 10:37:45 +08:00
xfy
11e22c80b8 perf: 零分配优化与 Dial timeout 支持
- 添加 b2s/s2b 零分配字节-字符串转换工具函数
- WebSocket 数据转发使用 sync.Pool 复用 32KB buffer
- 条件化 Debug 日志避免非 Debug 级别的字符串分配
- 缓存键哈希计算直接写入 []byte 避免 string 转换
- 使用 bytes.EqualFold 替代 strings.ToLower 进行大小写不敏感比较
- generateETag 使用 strconv.AppendInt 避免 fmt.Sprintf
- 支持 Dial timeout 配置,区分 TCP 连接建立和总连接超时
- MaxConnsPerHost 默认值改为 512(fasthttp 推荐)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-04-28 20:11:20 +08:00
xfy
d21e27fbac fix(lint): 修复 golangci-lint 错误 (119 -> 0 issues)
主要修复:
- errcheck: defer Close 使用 //nolint:errcheck,类型断言改为 ok 检查
- govet fieldalignment: 调整结构体字段顺序优化内存布局
- revive unused-parameter: 将未使用参数改为 _
- exhaustive: 添加缺失的 switch case 或 default
- goconst: 提取重复字符串为常量 (accessAllow, accessDeny 等)
- staticcheck SA9003: 修复空分支逻辑
- gofmt: 运行 gofmt -w 格式化
- nolintlint: 修复 nolint 注释格式

其他改进:
- 更新 .golangci.yml 配置,启用更严格的检查
- 移除未使用的代码和导入
- 简化测试辅助函数调用

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-13 16:15:31 +08:00
xfy
019bc80aa4 refactor(proxy): 提取 X-Forwarded 头处理为独立模块
提取 ForwardedHeaders 结构体和 SetForwardedHeaders/WriteForwardedHeaders
函数,消除 proxy.go 和 websocket.go 中的重复代码。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-13 10:58:57 +08:00
xfy
bb77fa6a98 fix(lint): 修复 handler 和 http2 模块 lint 错误
- 添加 nolint:errcheck 注释到 defer Close 调用
- 修复 websocket.go 中重复的 nolint 注释格式
- 添加 staticcheck SA1019 nolint 注释到 deprecated WriteScheduler
- 移除 sendfile_linux.go 中未使用的 platformLinux 常量
- 添加文件末尾换行符

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-13 09:51:30 +08:00
xfy
8b382606df Merge branch 'lint-fix' - resolve sendfile.go conflict
Conflict: sendfile.go (!linux build tag) was incorrectly modified to
include linuxSendfile and getSocketFd functions which already exist
in sendfile_linux.go.

Resolution: Keep HEAD version (simple fallback returning ENOTSUP) as
Linux implementation is properly separated in sendfile_linux.go.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-13 09:26:48 +08:00
xfy
8180ee9bea fix(proxy): 修复 WebSocket 升级失败时的资源泄漏
在升级失败(状态码非 101)和写入响应失败时,确保 resp.Body.Close()。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-10 17:59:22 +08:00
xfy
1ce84ce9c5 refactor(proxy): 提取命名常量并适配变量系统重命名
提取硬编码字符串为命名常量:
- upstreamCache = "CACHE"
- protoHTTPS = "https"
ProxyWebSocket → WebSocket
适配 variable.Context 重命名

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-10 09:40:37 +08:00
xfy
7a98a0b044 refactor: 抽取网络工具函数到 netutil 包,移除冗余代码
- 新增 internal/netutil 包,统一 IP 提取和 URL 解析函数
- proxy/websocket/middleware 使用 netutil 替代重复实现
- 移除 handler/sendfile 中未使用的 BufferPool 相关代码
- 移除 http3/adapter 中未使用的反向转换函数
- 提取 server.registerStaticHandler 函数改进代码结构
- 优化 access.go 锁范围,减少持锁时间

Co-Authored-By: Claude <noreply@anthropic.com>
2026-04-03 18:24:21 +08:00
xfy
cd2d1a8194 refactor: 优化字符串构建方式,统一测试错误处理风格
- 使用 fmt.Fprintf 替代冗余的 WriteString(fmt.Sprintf) 组合
- 测试中 nil 检查使用 t.Fatal 替代 t.Error 立即终止
- .gitignore 添加 html/ 目录忽略

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-03 17:49:11 +08:00
xfy
0f7c69e59b refactor(app,logging,proxy,ssl): 改进错误处理,使用空白标识符忽略明确不关心的返回值
- 使用 _ 忽略 Close、Write、Signal 等函数的错误返回值
- 这些场景的错误处理没有实际意义(关闭时已处于清理阶段)
- 移除 health.go 中未使用的 mu 字段
- proxy 模块使用 for-range 替代 VisitAll 遍历头部

Co-Authored-By: Claude <noreply@anthropic.com>
2026-04-03 17:36:47 +08:00
xfy
ac9153f09d fix(proxy,stream,server): Phase 8 问题修复与功能完善
- WebSocket 代理集成:handleWebSocket 现调用 ProxyWebSocket 实现
- 删除 UDP Stream 冗余代码:移除 udpListener 类型及相关测试
- 热升级监听器继承:改用 net.Listen + Serve 模式支持监听器传递
- 代码格式修复:注释格式调整、字段对齐、文件末尾换行符

Co-Authored-By: Claude <noreply@anthropic.com>
2026-04-03 14:28:00 +08:00
xfy
80936ae66b feat(server,proxy,ssl,docs): 完成 Phase 7 功能完善
主要变更:
- WebSocket 代理支持 (internal/proxy/websocket.go)
- OCSP stapling 实现 (internal/ssl/ocsp.go)
- 监控状态端点 (internal/server/status.go)
- 新增 nginx 模块文档 (19-24)
- UDP 代理超时配置支持
- 多模块代码注释完善和功能增强

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-03 13:13:12 +08:00