mirror of
https://github.com/Ed1s0nZ/CyberStrikeAI.git
synced 2026-03-31 16:20:28 +02:00
310 lines
9.5 KiB
Go
310 lines
9.5 KiB
Go
package handler
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"strings"
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"sync"
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"time"
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"cyberstrike-ai/internal/multiagent"
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"github.com/gin-gonic/gin"
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"go.uber.org/zap"
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)
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// MultiAgentLoopStream Eino DeepAgent 流式对话（需 config.multi_agent.enabled）。
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func (h *AgentHandler) MultiAgentLoopStream(c *gin.Context) {
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c.Header("Content-Type", "text/event-stream")
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c.Header("Cache-Control", "no-cache")
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c.Header("Connection", "keep-alive")
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if h.config == nil || !h.config.MultiAgent.Enabled {
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ev := StreamEvent{Type: "error", Message: "多代理未启用，请在设置或 config.yaml 中开启 multi_agent.enabled"}
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b, _ := json.Marshal(ev)
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fmt.Fprintf(c.Writer, "data: %s\n\n", b)
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done := StreamEvent{Type: "done", Message: ""}
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db, _ := json.Marshal(done)
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fmt.Fprintf(c.Writer, "data: %s\n\n", db)
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if flusher, ok := c.Writer.(http.Flusher); ok {
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flusher.Flush()
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}
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return
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}
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var req ChatRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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event := StreamEvent{Type: "error", Message: "请求参数错误: " + err.Error()}
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b, _ := json.Marshal(event)
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fmt.Fprintf(c.Writer, "data: %s\n\n", b)
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c.Writer.Flush()
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return
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}
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c.Header("X-Accel-Buffering", "no")
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// 用于在 sendEvent 中判断是否为用户主动停止导致的取消。
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// 注意：baseCtx 会在后面创建；该变量用于闭包提前捕获引用。
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var baseCtx context.Context
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clientDisconnected := false
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// 与 sseKeepalive 共用：禁止并发写 ResponseWriter，否则会破坏 chunked 编码（ERR_INVALID_CHUNKED_ENCODING）。
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var sseWriteMu sync.Mutex
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sendEvent := func(eventType, message string, data interface{}) {
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if clientDisconnected {
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return
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}
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// 用户主动停止时，Eino 可能仍会并发上报 eventType=="error"。
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// 为避免 UI 看到“取消错误 + cancelled 文案”两条回复，这里直接丢弃取消对应的 error。
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if eventType == "error" && baseCtx != nil && errors.Is(context.Cause(baseCtx), ErrTaskCancelled) {
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return
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}
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select {
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case <-c.Request.Context().Done():
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clientDisconnected = true
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return
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default:
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}
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ev := StreamEvent{Type: eventType, Message: message, Data: data}
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b, _ := json.Marshal(ev)
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sseWriteMu.Lock()
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_, err := fmt.Fprintf(c.Writer, "data: %s\n\n", b)
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if err != nil {
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sseWriteMu.Unlock()
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clientDisconnected = true
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return
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}
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if flusher, ok := c.Writer.(http.Flusher); ok {
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flusher.Flush()
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} else {
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c.Writer.Flush()
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}
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sseWriteMu.Unlock()
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}
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h.logger.Info("收到 Eino DeepAgent 流式请求",
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zap.String("conversationId", req.ConversationID),
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)
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prep, err := h.prepareMultiAgentSession(&req)
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if err != nil {
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sendEvent("error", err.Error(), nil)
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sendEvent("done", "", nil)
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return
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}
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if prep.CreatedNew {
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sendEvent("conversation", "会话已创建", map[string]interface{}{
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"conversationId": prep.ConversationID,
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})
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}
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conversationID := prep.ConversationID
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assistantMessageID := prep.AssistantMessageID
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progressCallback := h.createProgressCallback(conversationID, assistantMessageID, sendEvent)
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baseCtx, cancelWithCause := context.WithCancelCause(context.Background())
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taskCtx, timeoutCancel := context.WithTimeout(baseCtx, 600*time.Minute)
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defer timeoutCancel()
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defer cancelWithCause(nil)
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if _, err := h.tasks.StartTask(conversationID, req.Message, cancelWithCause); err != nil {
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var errorMsg string
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if errors.Is(err, ErrTaskAlreadyRunning) {
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errorMsg = "⚠️ 当前会话已有任务正在执行中，请等待当前任务完成或点击「停止任务」后再尝试。"
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sendEvent("error", errorMsg, map[string]interface{}{
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"conversationId": conversationID,
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"errorType": "task_already_running",
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})
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} else {
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errorMsg = "❌ 无法启动任务: " + err.Error()
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sendEvent("error", errorMsg, nil)
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}
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if assistantMessageID != "" {
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_, _ = h.db.Exec("UPDATE messages SET content = ? WHERE id = ?", errorMsg, assistantMessageID)
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}
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sendEvent("done", "", map[string]interface{}{"conversationId": conversationID})
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return
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}
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taskStatus := "completed"
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defer h.tasks.FinishTask(conversationID, taskStatus)
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sendEvent("progress", "正在启动 Eino DeepAgent...", map[string]interface{}{
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"conversationId": conversationID,
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})
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stopKeepalive := make(chan struct{})
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go sseKeepalive(c, stopKeepalive, &sseWriteMu)
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defer close(stopKeepalive)
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result, runErr := multiagent.RunDeepAgent(
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taskCtx,
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h.config,
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&h.config.MultiAgent,
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h.agent,
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h.logger,
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conversationID,
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prep.FinalMessage,
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prep.History,
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prep.RoleTools,
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progressCallback,
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h.agentsMarkdownDir,
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)
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if runErr != nil {
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cause := context.Cause(baseCtx)
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if errors.Is(cause, ErrTaskCancelled) {
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taskStatus = "cancelled"
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h.tasks.UpdateTaskStatus(conversationID, taskStatus)
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cancelMsg := "任务已被用户取消，后续操作已停止。"
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if assistantMessageID != "" {
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_, _ = h.db.Exec("UPDATE messages SET content = ? WHERE id = ?", cancelMsg, assistantMessageID)
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_ = h.db.AddProcessDetail(assistantMessageID, conversationID, "cancelled", cancelMsg, nil)
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}
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sendEvent("cancelled", cancelMsg, map[string]interface{}{
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"conversationId": conversationID,
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"messageId": assistantMessageID,
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})
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sendEvent("done", "", map[string]interface{}{"conversationId": conversationID})
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return
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}
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h.logger.Error("Eino DeepAgent 执行失败", zap.Error(runErr))
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taskStatus = "failed"
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h.tasks.UpdateTaskStatus(conversationID, taskStatus)
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errMsg := "执行失败: " + runErr.Error()
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if assistantMessageID != "" {
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_, _ = h.db.Exec("UPDATE messages SET content = ? WHERE id = ?", errMsg, assistantMessageID)
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_ = h.db.AddProcessDetail(assistantMessageID, conversationID, "error", errMsg, nil)
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}
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sendEvent("error", errMsg, map[string]interface{}{
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"conversationId": conversationID,
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"messageId": assistantMessageID,
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})
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sendEvent("done", "", map[string]interface{}{"conversationId": conversationID})
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return
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}
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if assistantMessageID != "" {
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mcpIDsJSON := ""
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if len(result.MCPExecutionIDs) > 0 {
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jsonData, _ := json.Marshal(result.MCPExecutionIDs)
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mcpIDsJSON = string(jsonData)
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}
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_, _ = h.db.Exec(
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"UPDATE messages SET content = ?, mcp_execution_ids = ? WHERE id = ?",
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result.Response,
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mcpIDsJSON,
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assistantMessageID,
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)
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}
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if result.LastReActInput != "" || result.LastReActOutput != "" {
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if err := h.db.SaveReActData(conversationID, result.LastReActInput, result.LastReActOutput); err != nil {
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h.logger.Warn("保存 ReAct 数据失败", zap.Error(err))
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}
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}
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sendEvent("response", result.Response, map[string]interface{}{
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"mcpExecutionIds": result.MCPExecutionIDs,
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"conversationId": conversationID,
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"messageId": assistantMessageID,
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"agentMode": "eino_deep",
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})
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sendEvent("done", "", map[string]interface{}{"conversationId": conversationID})
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}
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// MultiAgentLoop Eino DeepAgent 非流式对话（与 POST /api/agent-loop 对齐，需 multi_agent.enabled）。
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func (h *AgentHandler) MultiAgentLoop(c *gin.Context) {
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if h.config == nil || !h.config.MultiAgent.Enabled {
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c.JSON(http.StatusNotFound, gin.H{"error": "多代理未启用，请在 config.yaml 中设置 multi_agent.enabled: true"})
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return
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}
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var req ChatRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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h.logger.Info("收到 Eino DeepAgent 非流式请求", zap.String("conversationId", req.ConversationID))
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prep, err := h.prepareMultiAgentSession(&req)
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if err != nil {
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status, msg := multiAgentHTTPErrorStatus(err)
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c.JSON(status, gin.H{"error": msg})
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return
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}
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result, runErr := multiagent.RunDeepAgent(
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c.Request.Context(),
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h.config,
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&h.config.MultiAgent,
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h.agent,
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h.logger,
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prep.ConversationID,
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prep.FinalMessage,
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prep.History,
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prep.RoleTools,
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nil,
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h.agentsMarkdownDir,
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)
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if runErr != nil {
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h.logger.Error("Eino DeepAgent 执行失败", zap.Error(runErr))
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errMsg := "执行失败: " + runErr.Error()
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if prep.AssistantMessageID != "" {
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_, _ = h.db.Exec("UPDATE messages SET content = ? WHERE id = ?", errMsg, prep.AssistantMessageID)
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}
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c.JSON(http.StatusInternalServerError, gin.H{"error": errMsg})
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return
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}
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if prep.AssistantMessageID != "" {
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mcpIDsJSON := ""
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if len(result.MCPExecutionIDs) > 0 {
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jsonData, _ := json.Marshal(result.MCPExecutionIDs)
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mcpIDsJSON = string(jsonData)
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}
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_, _ = h.db.Exec(
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"UPDATE messages SET content = ?, mcp_execution_ids = ? WHERE id = ?",
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result.Response,
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mcpIDsJSON,
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prep.AssistantMessageID,
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)
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}
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if result.LastReActInput != "" || result.LastReActOutput != "" {
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if err := h.db.SaveReActData(prep.ConversationID, result.LastReActInput, result.LastReActOutput); err != nil {
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h.logger.Warn("保存 ReAct 数据失败", zap.Error(err))
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}
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}
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c.JSON(http.StatusOK, ChatResponse{
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Response: result.Response,
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MCPExecutionIDs: result.MCPExecutionIDs,
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ConversationID: prep.ConversationID,
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Time: time.Now(),
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})
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}
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func multiAgentHTTPErrorStatus(err error) (int, string) {
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msg := err.Error()
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switch {
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case strings.Contains(msg, "对话不存在"):
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return http.StatusNotFound, msg
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case strings.Contains(msg, "未找到该 WebShell"):
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return http.StatusBadRequest, msg
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case strings.Contains(msg, "附件最多"):
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return http.StatusBadRequest, msg
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case strings.Contains(msg, "保存用户消息失败"), strings.Contains(msg, "创建对话失败"):
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return http.StatusInternalServerError, msg
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case strings.Contains(msg, "保存上传文件失败"):
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return http.StatusInternalServerError, msg
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default:
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return http.StatusBadRequest, msg
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}
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}
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