mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-20 17:08:09 +00:00
bc9ef15eb0
- L0: files 插件写受保护系统路径(/etc 等)前自动留档，AbstractBeforeWrite 到 data/file_baseline - L1: failback 受限 worker 执行恢复梯子 probe→还原DNS/proxy→还原LLM配置+ReloadFromConfig→probe，N轮有界 - L2: tracker changeset 持久化原文 blob，guard 离线 RollbackFromDisk 回滚 agentfs；SystemSnapshot 支撑 - guard 父守护: 心跳 IPC(PING/ACK unix socket, 文件心跳回退)、失败计数、退出码协议(42/43/44)、最后手段 - 发行版路径适配: system.protected_paths/network_paths 可注入，默认面向主流 Linux - Windows 兼容: guard.go/failback.go 加 //go:build linux, guard_windows.go 提供 no-op 桩 - 修复: guard.yaml last_resort 键冲突、changeset Content 不落盘导致离线回滚丢原文 Build 全绿, vet 干净, system/recovery/ipc/tracker 单元测试全过
544 lines
15 KiB
Go
544 lines
15 KiB
Go
package files
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import (
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"encoding/json"
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"fmt"
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"log"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"sync"
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"gitcode.com/JianFeeeee/HomeAgent/internal/plugin"
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sdk "gitcode.com/JianFeeeee/HomeAgent/internal/sdk"
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"gitcode.com/JianFeeeee/HomeAgent/internal/system"
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)
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func init() {
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plugin.RegisterPluginMeta("files", "文件系统", "Files")
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plugin.RegisterFactory("files", func(name string, config map[string]interface{}) (sdk.Plugin, error) {
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return New(name), nil
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})
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}
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type Plugin struct {
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name string
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sdk *sdk.PluginSDK
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mu sync.RWMutex
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filesDir string
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baseDir string // L0 写前留档根目录（<data>/file_baseline 的父目录），空则禁用
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}
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func New(name string) *Plugin {
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return &Plugin{name: name}
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}
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func (p *Plugin) Name() string { return p.name }
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func (p *Plugin) Start(s *sdk.PluginSDK) error {
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s.SetAutoRestart(true)
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p.sdk = s
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s.Settings().RegisterDef(sdk.ConfigDef{
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Key: "dir",
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Default: "/",
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Type: "string",
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DisplayName: "文件系统根目录",
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Description: "文件操作允许访问的根目录（设为 / 表示完整主机文件系统）",
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Category: "files",
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})
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dir := getSetting[string](s.Settings(), "dir", "/")
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if strings.HasPrefix(dir, "~/") {
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home, _ := os.UserHomeDir()
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dir = filepath.Join(home, dir[2:])
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}
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abs, err := filepath.Abs(dir)
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if err != nil {
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return fmt.Errorf("resolve files.dir: %w", err)
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}
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p.filesDir = abs
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// L0 写前留档：主 agent 写 /etc 等受保护路径前自动存档原文（homed 注入 <data>）
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if cfg := s.Config().Get(); cfg != nil {
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if dd := cfg.Daemon.DataDir; dd != "" {
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p.baseDir = dd
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}
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}
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s.Settings().RegisterDef(sdk.ConfigDef{
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Key: "baseline_dir",
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Default: p.baseDir,
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Type: "string",
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DisplayName: "写前留档目录",
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Description: "写受保护系统路径前自动存档原文的目录（空禁用）",
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Category: "files",
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})
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if v, err := s.Settings().Get("baseline_dir"); err == nil && v != nil {
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if s, ok := v.(string); ok && s != "" {
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p.baseDir = s
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}
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}
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if p.baseDir != "" {
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log.Printf("[%s] write-ahead baseline dir: %s", p.name, system.FileBaselineDir(p.baseDir))
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}
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tp := p.name + "_"
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s.RegisterTool(tp+"read", sdk.ToolDef{
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Name: tp + "read",
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Description: fmt.Sprintf("读取文件内容。支持 offset/limit 分段读取大文件。沙箱路径: %s", p.filesDir),
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NoMemory: false,
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Cleaner: func(output string) string {
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var r struct{ Content string }
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if err := json.Unmarshal([]byte(output), &r); err != nil {
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return output
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}
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return r.Content
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},
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"path": map[string]interface{}{"type": "string", "description": "文件路径（绝对路径或相对于沙箱的路径）"},
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"offset": map[string]interface{}{"type": "integer", "description": "起始行号（从1开始，可选，默认1）"},
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"limit": map[string]interface{}{"type": "integer", "description": "最多返回的行数（可选，默认全部）"},
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},
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"required": []string{"path"},
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},
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}, p.handleRead)
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s.RegisterTool(tp+"write", sdk.ToolDef{
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Name: tp + "write",
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Description: fmt.Sprintf("写入文件。自动创建父目录。沙箱路径: %s", p.filesDir),
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"path": map[string]interface{}{"type": "string", "description": "文件路径"},
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"content": map[string]interface{}{"type": "string", "description": "要写入的内容"},
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"mode": map[string]interface{}{"type": "string", "description": "写入模式: overwrite（覆盖，默认）| append（追加到末尾）| insert（插入到指定行）| create（创建新文件，已存在则报错）"},
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"line": map[string]interface{}{"type": "integer", "description": "插入模式时的目标行号（从1开始），内容将插入到该行之前"},
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},
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"required": []string{"path", "content"},
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},
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}, p.handleWrite)
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s.RegisterTool(tp+"edit", sdk.ToolDef{
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Name: tp + "edit",
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Description: fmt.Sprintf("对文件执行精确字符串替换。每个 old 必须在原文中唯一匹配。沙箱路径: %s", p.filesDir),
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"path": map[string]interface{}{"type": "string", "description": "文件路径"},
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"edits": map[string]interface{}{
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"type": "array",
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"description": "一个或多个替换操作。每个 old 必须在原文中恰好出现一次。不要包含重叠的 edit。",
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"items": map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"old": map[string]interface{}{"type": "string", "description": "要查找的原文（必须在文件中唯一）"},
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"new": map[string]interface{}{"type": "string", "description": "替换后的文本"},
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},
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"required": []string{"old", "new"},
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},
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},
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},
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"required": []string{"path", "edits"},
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},
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}, p.handleEdit)
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s.RegisterTool(tp+"ls", sdk.ToolDef{
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Name: tp + "ls",
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Description: fmt.Sprintf("列出目录内容。目录以 / 后缀标记。沙箱路径: %s", p.filesDir),
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"path": map[string]interface{}{"type": "string", "description": "目录路径（可选，默认为沙箱根目录）"},
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"limit": map[string]interface{}{"type": "integer", "description": "最多返回条目数（可选，默认500）"},
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},
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},
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}, p.handleLs)
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log.Printf("[%s] started, sandbox: %s", p.name, p.filesDir)
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return nil
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}
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func (p *Plugin) Stop() error {
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log.Printf("[%s] stopped", p.name)
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return nil
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}
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func (p *Plugin) resolvePath(userPath string) (string, error) {
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if userPath == "" {
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userPath = "."
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}
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if !filepath.IsAbs(userPath) {
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userPath = filepath.Join(p.filesDir, userPath)
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}
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abs, err := filepath.Abs(userPath)
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if err != nil {
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return "", fmt.Errorf("resolve path: %w", err)
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}
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base := filepath.Clean(p.filesDir)
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if base != "/" && !strings.HasPrefix(abs, base+string(filepath.Separator)) && abs != base {
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return "", fmt.Errorf("path outside sandbox: %s", userPath)
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}
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return abs, nil
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}
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func (p *Plugin) handleRead(args map[string]interface{}) (interface{}, error) {
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path, _ := args["path"].(string)
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if path == "" {
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return errorResult("path is required"), nil
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}
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absPath, err := p.resolvePath(path)
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if err != nil {
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return errorResult(err.Error()), nil
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}
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info, err := os.Stat(absPath)
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if err != nil {
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if os.IsNotExist(err) {
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return errorResult("file not found: " + path), nil
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}
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return errorResult("stat error: " + err.Error()), nil
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}
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if info.IsDir() {
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return errorResult("is a directory, use ls instead: " + path), nil
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}
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data, err := os.ReadFile(absPath)
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if err != nil {
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return errorResult("read error: " + err.Error()), nil
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}
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text := string(data)
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lines := strings.Split(text, "\n")
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totalLines := len(lines)
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offset := 0
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if v, ok := args["offset"].(float64); ok && v > 0 {
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offset = int(v) - 1
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}
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if offset >= totalLines {
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return errorResult(fmt.Sprintf("offset %d exceeds file length (%d lines)", offset+1, totalLines)), nil
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}
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limit := totalLines - offset
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if v, ok := args["limit"].(float64); ok && v > 0 {
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if int(v) < limit {
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limit = int(v)
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}
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}
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end := offset + limit
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if end > totalLines {
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end = totalLines
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}
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selected := lines[offset:end]
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output := strings.Join(selected, "\n")
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var sb strings.Builder
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sb.WriteString(output)
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if end < totalLines {
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nextOffset := end + 1
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sb.WriteString(fmt.Sprintf("\n\n[Showing lines %d-%d of %d. Use offset=%d to continue.]", offset+1, end, totalLines, nextOffset))
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} else if offset > 0 {
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sb.WriteString(fmt.Sprintf("\n\n[%d lines total]", totalLines))
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}
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return map[string]interface{}{
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"content": sb.String(),
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"size": len(data),
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"lines": totalLines,
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}, nil
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}
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func (p *Plugin) handleWrite(args map[string]interface{}) (interface{}, error) {
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path, _ := args["path"].(string)
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if path == "" {
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return errorResult("path is required"), nil
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}
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content, _ := args["content"].(string)
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mode, _ := args["mode"].(string)
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if mode == "" {
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mode = "overwrite"
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}
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line := 0
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if v, ok := args["line"].(float64); ok && v > 0 {
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line = int(v)
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}
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absPath, err := p.resolvePath(path)
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if err != nil {
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return errorResult(err.Error()), nil
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}
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// L0 写前留档：覆盖已有受保护文件前，原文存档供 guard 还原。
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if mode != "create" {
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if archived, aerr := p.archiveBeforeWrite(absPath); aerr != nil {
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log.Printf("[%s] write-ahead archive %s: %v", p.name, absPath, aerr)
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} else if archived {
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log.Printf("[%s] write-ahead archived %s", p.name, absPath)
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}
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}
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switch mode {
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case "create":
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if _, err := os.Stat(absPath); err == nil {
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return errorResult("file already exists: " + path), nil
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}
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dir := filepath.Dir(absPath)
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if err := os.MkdirAll(dir, 0755); err != nil {
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return errorResult("mkdir error: " + err.Error()), nil
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}
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if err := os.WriteFile(absPath, []byte(content), 0644); err != nil {
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return errorResult("write error: " + err.Error()), nil
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}
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return map[string]interface{}{
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"content": fmt.Sprintf("Created %s (%d bytes)", path, len(content)),
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}, nil
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case "append":
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dir := filepath.Dir(absPath)
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if err := os.MkdirAll(dir, 0755); err != nil {
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return errorResult("mkdir error: " + err.Error()), nil
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}
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f, err := os.OpenFile(absPath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
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if err != nil {
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return errorResult("open error: " + err.Error()), nil
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}
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defer f.Close()
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if _, err := f.WriteString(content); err != nil {
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return errorResult("append error: " + err.Error()), nil
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}
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return map[string]interface{}{
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"content": fmt.Sprintf("Appended %d bytes to %s", len(content), path),
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}, nil
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case "insert":
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if line < 1 {
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return errorResult("line must be >= 1 for insert mode"), nil
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}
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data, err := os.ReadFile(absPath)
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if err != nil {
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if os.IsNotExist(err) {
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return errorResult("file not found: " + path), nil
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}
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return errorResult("read error: " + err.Error()), nil
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}
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lines := strings.Split(string(data), "\n")
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if line > len(lines)+1 {
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return errorResult(fmt.Sprintf("line %d exceeds file length (%d lines)", line, len(lines))), nil
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}
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idx := line - 1
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newLines := make([]string, 0, len(lines)+1)
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newLines = append(newLines, lines[:idx]...)
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newLines = append(newLines, content)
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newLines = append(newLines, lines[idx:]...)
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result := strings.Join(newLines, "\n")
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if err := os.WriteFile(absPath, []byte(result), 0644); err != nil {
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return errorResult("write error: " + err.Error()), nil
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}
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return map[string]interface{}{
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"content": fmt.Sprintf("Inserted %d bytes at line %d in %s", len(content), line, path),
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}, nil
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default: // overwrite
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dir := filepath.Dir(absPath)
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if err := os.MkdirAll(dir, 0755); err != nil {
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return errorResult("mkdir error: " + err.Error()), nil
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}
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if err := os.WriteFile(absPath, []byte(content), 0644); err != nil {
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return errorResult("write error: " + err.Error()), nil
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}
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return map[string]interface{}{
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"content": fmt.Sprintf("Wrote %d bytes to %s", len(content), path),
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}, nil
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}
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}
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func (p *Plugin) handleEdit(args map[string]interface{}) (interface{}, error) {
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path, _ := args["path"].(string)
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if path == "" {
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return errorResult("path is required"), nil
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}
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absPath, err := p.resolvePath(path)
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if err != nil {
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return errorResult(err.Error()), nil
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}
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// L0 写前留档（edit 可能覆盖已存在文件）
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if archived, aerr := p.archiveBeforeWrite(absPath); aerr != nil {
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log.Printf("[%s] write-ahead archive %s: %v", p.name, absPath, aerr)
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} else if archived {
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log.Printf("[%s] write-ahead archived %s", p.name, absPath)
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}
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rawEdits, ok := args["edits"].([]interface{})
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if !ok || len(rawEdits) == 0 {
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return errorResult("edits must be a non-empty array"), nil
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}
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data, err := os.ReadFile(absPath)
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if err != nil {
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if os.IsNotExist(err) {
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return errorResult("file not found: " + path), nil
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}
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return errorResult("read error: " + err.Error()), nil
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}
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original := string(data)
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content := original
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applied := 0
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var errors []string
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for i, raw := range rawEdits {
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edit, ok := raw.(map[string]interface{})
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if !ok {
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errors = append(errors, fmt.Sprintf("edit[%d]: invalid format", i))
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continue
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}
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oldText, _ := edit["old"].(string)
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newText, _ := edit["new"].(string)
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if oldText == "" {
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errors = append(errors, fmt.Sprintf("edit[%d]: old is required", i))
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continue
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}
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count := strings.Count(content, oldText)
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if count == 0 {
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errors = append(errors, fmt.Sprintf("edit[%d]: could not find %q in %s", i, oldText, path))
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continue
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}
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if count > 1 {
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errors = append(errors, fmt.Sprintf("edit[%d]: found %d occurrences of %q, must be unique", i, count, oldText))
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continue
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}
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content = strings.Replace(content, oldText, newText, 1)
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applied++
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}
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if applied == 0 {
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msg := "no edits applied"
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if len(errors) > 0 {
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msg += ": " + strings.Join(errors, "; ")
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}
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return errorResult(msg), nil
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}
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if err := os.WriteFile(absPath, []byte(content), 0644); err != nil {
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return errorResult("write error: " + err.Error()), nil
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}
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msg := fmt.Sprintf("Successfully applied %d/%d edits to %s", applied, len(rawEdits), path)
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if len(errors) > 0 {
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msg += "\nWarnings:\n" + strings.Join(errors, "\n")
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}
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return map[string]interface{}{
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"content": msg,
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}, nil
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}
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func (p *Plugin) handleLs(args map[string]interface{}) (interface{}, error) {
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path, _ := args["path"].(string)
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if path == "" {
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path = "."
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}
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absPath, err := p.resolvePath(path)
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if err != nil {
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return errorResult(err.Error()), nil
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}
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info, err := os.Stat(absPath)
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if err != nil {
|
||
if os.IsNotExist(err) {
|
||
return errorResult("path not found: " + path), nil
|
||
}
|
||
return errorResult("stat error: " + err.Error()), nil
|
||
}
|
||
if !info.IsDir() {
|
||
return errorResult("not a directory: " + path), nil
|
||
}
|
||
|
||
entries, err := os.ReadDir(absPath)
|
||
if err != nil {
|
||
return errorResult("readdir error: " + err.Error()), nil
|
||
}
|
||
|
||
limit := 500
|
||
if v, ok := args["limit"].(float64); ok && v > 0 {
|
||
limit = int(v)
|
||
}
|
||
|
||
sort.Slice(entries, func(i, j int) bool {
|
||
return strings.ToLower(entries[i].Name()) < strings.ToLower(entries[j].Name())
|
||
})
|
||
|
||
var lines []string
|
||
entryLimitReached := false
|
||
for i, entry := range entries {
|
||
if i >= limit {
|
||
entryLimitReached = true
|
||
break
|
||
}
|
||
name := entry.Name()
|
||
if entry.IsDir() {
|
||
name += "/"
|
||
}
|
||
info, err := entry.Info()
|
||
if err == nil {
|
||
name = fmt.Sprintf("%-40s %8d", name, info.Size())
|
||
}
|
||
lines = append(lines, name)
|
||
}
|
||
|
||
if len(lines) == 0 {
|
||
return map[string]interface{}{
|
||
"content": "(empty directory)",
|
||
}, nil
|
||
}
|
||
|
||
output := strings.Join(lines, "\n")
|
||
if entryLimitReached {
|
||
output += fmt.Sprintf("\n\n[%d entries limit reached. Use limit=N for more.]", limit)
|
||
}
|
||
|
||
return map[string]interface{}{
|
||
"content": output,
|
||
}, nil
|
||
}
|
||
|
||
func errorResult(msg string) map[string]interface{} {
|
||
return map[string]interface{}{
|
||
"isError": true,
|
||
"content": msg,
|
||
}
|
||
}
|
||
|
||
// archiveBeforeWrite L0 写前留档：若目标为受保护系统路径且已存在，则存档原文。
|
||
func (p *Plugin) archiveBeforeWrite(absPath string) (bool, error) {
|
||
if p.baseDir == "" {
|
||
return false, nil
|
||
}
|
||
return system.ArchiveBeforeWrite(p.baseDir, absPath)
|
||
}
|
||
|
||
func getSetting[T any](s sdk.SettingsAPI, key string, def T) T {
|
||
v, err := s.Get(key)
|
||
if err != nil || v == nil {
|
||
return def
|
||
}
|
||
val, ok := v.(T)
|
||
if !ok {
|
||
return def
|
||
}
|
||
return val
|
||
}
|