mirror of
https://github.com/Ed1s0nZ/CyberStrikeAI.git
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187 lines
6.7 KiB
Go
187 lines
6.7 KiB
Go
package multiagent
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"strings"
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"time"
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"cyberstrike-ai/internal/einomcp"
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"cyberstrike-ai/internal/security"
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"github.com/cloudwego/eino/adk/filesystem"
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"github.com/cloudwego/eino/compose"
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"github.com/cloudwego/eino/schema"
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)
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// prependPythonUnbufferedEnv 为 /bin/sh -c 注入 PYTHONUNBUFFERED=1。
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// eino-ext local 对流式 stdout 使用 bufio 按「行」推送;python3 写管道时默认块缓冲,print 长期留在用户态缓冲,
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// 管道里收不到换行,表现为长时间无输出直至超时或退出。若命令里已出现 PYTHONUNBUFFERED 则不再覆盖。
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func prependPythonUnbufferedEnv(shellCommand string) string {
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if strings.TrimSpace(shellCommand) == "" {
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return shellCommand
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}
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if strings.Contains(strings.ToUpper(shellCommand), "PYTHONUNBUFFERED") {
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return shellCommand
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}
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return "export PYTHONUNBUFFERED=1\n" + shellCommand
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}
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// einoExecuteTimeoutUserHint 与写入 ADK 工具消息(模型可见)及 SSE tool_result 尾标一致。
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func einoExecuteTimeoutUserHint() string {
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return "已超时终止 · Timed out"
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}
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// einoStreamingShellWrap 包装 Eino filesystem 使用的 StreamingShell(cloudwego eino-ext local.Local)。
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// 官方 execute 工具默认走 ExecuteStreaming 且不设 RunInBackendGround;末尾带 & 时子进程仍与管道相连,
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// streamStdout 按行读取会在无换行输出时长时间阻塞(与 MCP 工具 exec 的独立实现不同)。
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// 对「完全后台」命令自动开启 RunInBackendGround,与 local.runCmdInBackground 行为对齐。
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//
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// 使用 Pipe 将内层流转发给调用方:在 inner EOF 后、关闭 Pipe 前同步调用 ToolInvokeNotify.Fire,
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// 保证 run loop 在模型开始下一轮输出前已记录 execute 结果(用于 UI 与「重复助手复述」去重)。
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//
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// 若 inner 在校验阶段直接返回 error(未建立 reader),不会进入下方 goroutine,也必须 Fire;
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// 否则 pending tool_call 要等整轮 run 结束才被 force-close,与已展示的助手/工具软错误文案不同步。
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type einoStreamingShellWrap struct {
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inner filesystem.StreamingShell
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invokeNotify *einomcp.ToolInvokeNotifyHolder
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einoAgentName string
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// outputChunk 可选;非 nil 时在收到内层 ExecuteResponse 片段时推送,与 MCP 工具的 tool_result_delta 一致(需有效 toolCallId)。
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outputChunk func(toolName, toolCallID, chunk string)
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// toolTimeoutMinutes 与 agent.tool_timeout_minutes 对齐;>0 时对单次 execute 套用 context 超时(与 MCP 工具经 executeToolViaMCP 行为一致)。0 表示仅依赖上层 ctx(如整任务 10h 上限)。
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toolTimeoutMinutes int
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// recordMonitor 在 execute 流结束后写入 tool_executions 并 recorder(executionId),使「渗透测试详情」与常规 MCP 一致。
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recordMonitor func(command, stdout string, success bool, invokeErr error)
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}
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func (w *einoStreamingShellWrap) ExecuteStreaming(ctx context.Context, input *filesystem.ExecuteRequest) (*schema.StreamReader[*filesystem.ExecuteResponse], error) {
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if w.inner == nil {
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return nil, fmt.Errorf("einoStreamingShellWrap: inner shell is nil")
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}
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if input == nil {
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return w.inner.ExecuteStreaming(ctx, nil)
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}
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req := *input
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userCmd := strings.TrimSpace(req.Command)
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if security.IsBackgroundShellCommand(req.Command) && !req.RunInBackendGround {
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req.RunInBackendGround = true
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}
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req.Command = prependPythonUnbufferedEnv(req.Command)
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tid := strings.TrimSpace(compose.GetToolCallID(ctx))
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agentTag := strings.TrimSpace(w.einoAgentName)
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execCtx := ctx
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var execCancel context.CancelFunc
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if w.toolTimeoutMinutes > 0 {
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execCtx, execCancel = context.WithTimeout(ctx, time.Duration(w.toolTimeoutMinutes)*time.Minute)
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}
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sr, err := w.inner.ExecuteStreaming(execCtx, &req)
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if err != nil {
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if execCancel != nil {
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execCancel()
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}
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if w.recordMonitor != nil {
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w.recordMonitor(userCmd, "", false, err)
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}
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if w.invokeNotify != nil && tid != "" {
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w.invokeNotify.Fire(tid, "execute", agentTag, false, "", err)
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}
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return nil, err
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}
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if sr == nil || w.invokeNotify == nil || tid == "" {
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if execCancel != nil {
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execCancel()
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}
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return sr, nil
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}
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outR, outW := schema.Pipe[*filesystem.ExecuteResponse](32)
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go func(inner *schema.StreamReader[*filesystem.ExecuteResponse], command string, cancel context.CancelFunc, tctx context.Context) {
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defer inner.Close()
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if cancel != nil {
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defer cancel()
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}
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var sb strings.Builder
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const maxCapture = 16 * 1024
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success := true
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var invokeErr error
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exitCode := 0
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hasExitCode := false
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for {
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resp, rerr := inner.Recv()
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if errors.Is(rerr, io.EOF) {
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break
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}
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if rerr != nil {
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success = false
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invokeErr = rerr
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_ = outW.Send(nil, rerr)
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break
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}
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if resp != nil {
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if resp.ExitCode != nil {
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hasExitCode = true
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exitCode = *resp.ExitCode
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}
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var appended string
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if remain := maxCapture - sb.Len(); remain > 0 {
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out := resp.Output
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if len(out) > remain {
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out = out[:remain]
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}
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sb.WriteString(out)
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appended = out
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}
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// 仅推送写入 sb 的片段,与末尾 Fire/recordMonitor 的截断累计一致,避免最终 tool_result 短于已展示增量。
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if w.outputChunk != nil && strings.TrimSpace(appended) != "" {
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w.outputChunk("execute", tid, appended)
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}
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if outW.Send(resp, nil) {
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success = false
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invokeErr = fmt.Errorf("execute stream closed by consumer")
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break
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}
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}
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}
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if success && hasExitCode && exitCode != 0 {
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success = false
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invokeErr = fmt.Errorf("execute exited with code %d", exitCode)
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}
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// WithTimeout 触发后,子进程常被信号结束,local 侧多报 exit -1 / canceled,错误链里不一定带 DeadlineExceeded。
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// 用执行所用 ctx 归一化,便于 UI 展示「超时」而非含糊的 -1。
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if tctx != nil && errors.Is(tctx.Err(), context.DeadlineExceeded) {
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success = false
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invokeErr = context.DeadlineExceeded
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}
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// ADK 从本 Pipe 拼出 tool 消息正文;仅 Notify 尾标不会进入模型上下文。超时句写入流,与 UI 一致。
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if invokeErr != nil && errors.Is(invokeErr, context.DeadlineExceeded) {
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hint := "\n\n" + einoExecuteTimeoutUserHint() + "\n"
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_ = outW.Send(&filesystem.ExecuteResponse{Output: hint}, nil)
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if w.outputChunk != nil && tid != "" {
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w.outputChunk("execute", tid, hint)
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}
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if remain := maxCapture - sb.Len(); remain > 0 {
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h := hint
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if len(h) > remain {
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h = h[:remain]
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}
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sb.WriteString(h)
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}
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}
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if w.recordMonitor != nil {
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w.recordMonitor(command, sb.String(), success, invokeErr)
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}
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w.invokeNotify.Fire(tid, "execute", agentTag, success, sb.String(), invokeErr)
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outW.Close()
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}(sr, userCmd, execCancel, execCtx)
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return outR, nil
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}
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