feat(gateway): [EPIC-GW-02] 引入 neocode:// URL 唤醒分发与网关拦截 by pionxe · Pull Request #288 · 1024XEngineer/neo-code

pionxe · 2026-04-14T09:16:47Z

目标 (Motivation & Context)

本 PR 完整实现了网关重构计划的第二步 [EPIC-GW-02]，使得操作系统、浏览器或外部 IDE 可以通过 neocode:// 协议唤醒本地系统，并将任务精准派发给常驻后台的 Gateway 进程。

💡 核心架构决议说明： 经过评估，本期遵循了“最小改动与职责单一”原则：

通信载体沿用：暂不引入 JSON-RPC 重构，继续使用当前成熟的 gateway.MessageFrame 作为 IPC 传输载体（JSON-RPC 改造已延后至 EPIC-GW-03）。
“哑巴代理”与“智能网关”：url-dispatch 仅做 URL 解析与无脑透传；业务合法性校验统一收拢在 Gateway 侧的 wake.go 处理器中。
白名单控制：本期 MVP 阶段，Gateway 仅允许 review action 通过，其余 action 一律快速失败（Fail Fast）。

Closes #271

✨ 主要变更 (Key Changes)

1. URL 协议层 (`internal/gateway/protocol`)

新增 neocode_url.go，实现从 neocode://... 到 WakeIntent 结构体的标准化解析。
支持提取 Action、SessionID、工作目录及 Query 参数。

2. 调度器与客户端 (`internal/gateway/adapters/urlscheme`)

新增 dispatcher.go，负责通过本地 IPC (UDS / Named Pipe) 连接网关并发送 wake.openUrl 帧。
实现了严格的结构化错误输出：遇到网关拦截或连接失败时，打印标准 JSON 错误并以 os.Exit(1) 退出。
新增了系统注册器占位（Windows 最小实现与非 Windows Stub）。

3. 网关服务端 (`internal/gateway/handlers`)

新增 wake.go 处理器及 FrameActionWakeOpenURL 动作标识。
白名单校验：拦截并拒绝所有非 review 的请求，返回 invalid_action；对 review 请求强制校验 path 参数。

4. CLI 命令框架优化 (`internal/cli`)

修改 root.go，引入 shouldSkipGlobalPreload 钩子。
修复 Bug：彻底隔离 url-dispatch 与全局重度业务配置（如模型 Provider 初始化），保证分发命令的极速启动和“纯粹代理”属性。

✅ 验收标准 (Acceptance Criteria)

解析器能正确拆解 neocode://review?path=README.md。
成功执行时，终端打印结构化的 status=ok 响应。
非法 Scheme 或未知 Action（如 neocode://open），网关正确拦截并返回 invalid_action，终端 Exit 1。
单独运行 url-dispatch 时，不再触发全局配置（如 Provider 未找到）的无意义报错。

🧪 测试与验证结果 (Verification)

单元测试：相关新增模块覆盖率均达 95% 以上，协议层/调度层覆盖率 100%。全仓 go test ./... -count=1 全绿。

CLI 行为打点：

# 成功链路验证 (网关开启状态)
$ go run ./cmd/neocode url-dispatch --url "neocode://review?path=README.md"
# 返回: {"status":"ok","payload":{...}}

# 失败拦截验证 (网关开启状态，测试未知 action)
$ go run ./cmd/neocode url-dispatch --url "neocode://fly?path=test"
# 返回: {"error":"invalid_action","message":"unsupported action: fly"} (Exit Code: 1)

# 网关离线验证 (网关未开启状态)
$ go run ./cmd/neocode url-dispatch --url "neocode://review?path=README.md"
# 返回: {"error":"gateway_unreachable", ...} (Exit Code: 1)
# (已确认不会再报 provider not found)

实现了从 OS 层 URL 唤醒到网关底层派发的全链路闭环，当前基于 MessageFrame + IPC 通信。主要改动： 1. 协议层：新增 neocode_url 解析器，标准化输出 WakeIntent。 2. 调度层：实现 url-dispatch 适配器，作为极简代理通过 IPC (UDS/Pipe) 将 URL 意图透传给网关。 3. 网关层：新增 wake.go 处理器，实施基于白名单的 Action 校验（本期 MVP 仅放行 'review'）。 4. 错误处理：Dispatcher 接收到网关业务错误（如 invalid_action）时，统一输出结构化 JSON 并以 Exit(1) 退出。 5. CLI 架构：在 rootCmd 增加判定钩子，豁免 url-dispatch 的全局业务配置预加载，确保其“轻量代理”属性，修复未启动网关时因加载 Provider 导致的报错拦截。

pionxe · 2026-04-14T09:17:05Z

/review

codecov · 2026-04-14T09:18:29Z

Codecov Report

❌ Patch coverage is 93.70460% with 26 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
internal/gateway/bootstrap.go	82.45%	5 Missing and 5 partials ⚠️
internal/gateway/adapters/urlscheme/dispatcher.go	92.72%	5 Missing and 3 partials ⚠️
internal/gateway/protocol/neocode_url.go	95.23%	2 Missing and 2 partials ⚠️
internal/cli/gateway_commands.go	96.66%	1 Missing and 1 partial ⚠️
internal/gateway/handlers/wake.go	97.01%	1 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!

…限制说明

pionxe · 2026-04-14T11:22:48Z

/review

pionxe · 2026-04-14T11:47:59Z

/review

pionxe · 2026-04-14T12:00:44Z

/review

…的基础防御

pionxe · 2026-04-14T12:14:13Z

/review

…t 导致的 Panic

pionxe · 2026-04-14T12:37:54Z

/review

fennoai

Found 1 issue worth addressing (path sanitization false positive) in the new URL wake parser.

fennoai · 2026-04-14T12:41:17Z

+		return "", nil
+	}
+
+	if strings.Contains(workdir, "..") {


strings.Contains(workdir, "..") will reject legitimate absolute paths that merely contain .. in a segment name (for example /opt/app..prod/project). This turns valid requests into unsafe_path errors. Consider checking for traversal by inspecting path segments (reject segment exactly ..) instead of substring matching.

fennoai

Focused review completed (code quality/performance/security/docs). I found two noteworthy issues in input validation paths that can cause incorrect behavior or unsafe downstream handling.

fennoai · 2026-04-14T12:41:29Z

+		return "", nil
+	}
+
+	if strings.Contains(workdir, "..") {


sanitizeWorkdir currently rejects any value containing ".." as a substring. This causes false positives for legitimate absolute paths like /opt/releases/v1..2 (not traversal). Consider validating traversal by path semantics (e.g., inspect cleaned segments / compare normalized form) instead of raw substring matching.

fennoai · 2026-04-14T12:41:29Z

+
+	switch action {
+	case protocol.WakeActionReview:
+		path := strings.TrimSpace(intent.Params["path"])


For review, the path parameter is only checked for non-empty. Since this comes from external URL input, values like ../../etc/passwd or absolute paths are currently accepted and forwarded. Add path safety validation (reject traversal / absolute paths, or constrain to workdir) before returning ACK.

fennoai

聚焦代码质量/性能/安全/文档一致性后，保留 2 条建议修复项如下。

fennoai · 2026-04-14T12:41:35Z

+		return nil
+	}
+
+	if err := writeURLDispatchSuccessOutput(os.Stdout, result); err != nil {


当 writeURLDispatchSuccessOutput 失败时这里直接返回 error，随后上层只会 exit(1)，不会再输出结构化 JSON 错误。这会让 url-dispatch 在 I/O 异常路径下打破当前“统一 JSON 输出”的契约（调用方只能拿到空输出或非结构化 stderr）。建议和上面的失败分支一致：将该错误映射为结构化 {"status":"error",...} 后再退出。

fennoai · 2026-04-14T12:41:35Z

+		return "", nil
+	}
+
+	if strings.Contains(workdir, "..") {


strings.Contains(workdir, "..") 会误伤合法绝对路径（例如 /tmp/a..b/project 或 C:\data\v1..2\repo），导致用户无法使用实际可用目录。更稳妥的做法是先 filepath.Clean，再按路径段判断是否存在 .. 跳转语义（而不是子串匹配），并结合绝对路径校验。

fennoai

Found one reliability/performance regression in the new URL dispatcher timeout handling.

fennoai · 2026-04-14T12:42:10Z

+
+// applyDispatchDeadline 为调度连接设置统一超时控制。
+func applyDispatchDeadline(conn net.Conn, ctx context.Context) error {
+	if ctx == nil {


applyDispatchDeadline returns immediately when ctx == nil, which disables the documented fallback I/O timeout (defaultDispatchIOTimeout). That means callers of exported Dispatch(nil, ...) can block indefinitely on IPC read/write if the peer stalls. Please still apply a default deadline when context is nil (or normalize nil to context.Background() before deadline logic).

fennoai

聚焦本次 PR diff 并汇总去重后，保留 2 条值得修复的问题：1) workdir 校验存在合法路径误杀；2) Dispatch(nil, ...) 会丢失默认 I/O 超时，可能导致阻塞。

fennoai · 2026-04-14T12:43:05Z

+		return "", nil
+	}
+
+	if strings.Contains(workdir, "..") {


strings.Contains(workdir, "..") 会误判合法路径（例如目录名包含 .. 的普通绝对路径），导致 unsafe_path 假阳性。建议改为按路径段语义判断是否存在真正的 .. 段，而不是子串匹配。

fennoai · 2026-04-14T12:43:05Z

+
+// applyDispatchDeadline 为调度连接设置统一超时控制。
+func applyDispatchDeadline(conn net.Conn, ctx context.Context) error {
+	if ctx == nil {


applyDispatchDeadline 在 ctx == nil 时直接返回，导致不会应用 defaultDispatchIOTimeout。这会让对外暴露的 Dispatch(nil, ...) 在对端卡住时出现无界阻塞风险。建议在 nil context 下仍设置默认 deadline（或先归一化为 context.Background()）。

…Context 时丢失默认超时的问题

pionxe · 2026-04-14T13:09:24Z

/simplify

fennoai · 2026-04-14T13:09:34Z

Result

I checked the historical review log and applied the unresolved fix that was still worth addressing.

Changes pushed to this PR branch:

Commit: 97d57d7
Branch: pionxe:feat/gateway-step2-urlscheme-wake

Implemented:

internal/gateway/handlers/wake.go
- Added strict safety validation for review action params.path.
- Rejects unsafe inputs with structured error code unsafe_path when path is absolute or contains traversal segment (..).
- Kept existing behavior for valid relative paths.
internal/gateway/handlers/wake_test.go
- Added regression tests for unsafe path cases (../../..., absolute path, Windows-style ..\\...).
- Added helper-level safety tests, including false-positive protection for names containing ...

Simplification pass:

Ran a code-simplifier sub-agent and accepted a small cleanup (normalizePath extraction) in wake.go.

Validation executed:

go test ./internal/gateway/handlers -count=1
go test ./internal/gateway/... -count=1

Notes on other logged comments:

The previously reported workdir false-positive (strings.Contains("..")) and nil-context dispatch-timeout issues are already fixed in current branch code, so no additional change was needed there.

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