ebc70f17eb
Agent:
- update: opnsense-update + pkg upgrade -y, optionaler Reboot
- major_update: opnsense-update -r <version>, optionaler Reboot
- update_check: Prueft Core- und Paket-Updates, liefert Details
- reboot: Shutdown mit konfigurierbarer Verzoegerung
Backend:
- Synchrone API-Endpoints (warten auf Agent-Response)
- Response-Waiter-System im Hub (Command-ID basiert)
- Konfigurierbare Timeouts pro Command-Typ
- POST /agents/{id}/update[-check] und /major-update und /reboot
README mit Update-Beispielen und API-Doku aktualisiert
441 lines
12 KiB
Go
441 lines
12 KiB
Go
package ws
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import (
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"context"
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"fmt"
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"log"
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"os/exec"
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"strconv"
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"strings"
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"time"
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)
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type Handler struct {
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client *Client
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}
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func NewHandler(client *Client) *Handler {
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return &Handler{client: client}
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}
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func (h *Handler) HandleCommand(msg Message) {
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log.Printf("Command erhalten: %s (ID: %s)", msg.Command, msg.ID)
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var response Message
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response.Type = "response"
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response.ID = msg.ID
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switch msg.Command {
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case "exec":
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response = h.handleExec(msg)
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case "update":
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response = h.handleUpdate(msg)
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case "major_update":
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response = h.handleMajorUpdate(msg)
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case "update_check":
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response = h.handleUpdateCheck(msg)
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case "reboot":
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response = h.handleReboot(msg)
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case "tunnel_connect":
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response = h.handleTunnelConnect(msg)
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case "tunnel_disconnect":
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h.handleTunnelDisconnect(msg)
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return
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case "tunnel_open":
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response.Status = "ok"
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response.Data = map[string]interface{}{"message": "tunnel_open deprecated, use tunnel_connect"}
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case "tunnel_close":
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response.Status = "ok"
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default:
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response.Status = "error"
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response.Error = fmt.Sprintf("Unbekanntes Command: %s", msg.Command)
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}
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if err := h.client.SendMessage(response); err != nil {
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log.Printf("Response senden fehlgeschlagen: %v", err)
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}
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}
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// handleExec fuehrt einen beliebigen Befehl aus
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func (h *Handler) handleExec(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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command, ok := msg.Params["command"].(string)
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if !ok || command == "" {
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response.Status = "error"
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response.Error = "Parameter 'command' erforderlich"
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return response
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}
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timeoutSec := 30
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if t, ok := msg.Params["timeout"]; ok {
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if ts, ok := t.(float64); ok {
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timeoutSec = int(ts)
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} else if ts, ok := t.(string); ok {
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if parsed, err := strconv.Atoi(ts); err == nil {
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timeoutSec = parsed
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}
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}
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}
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output, err := h.runCommand(command, timeoutSec)
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if err != nil {
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response.Status = "error"
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response.Error = err.Error()
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response.Data = map[string]interface{}{"output": output}
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} else {
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response.Status = "ok"
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response.Data = map[string]interface{}{"output": output}
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}
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return response
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}
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// handleUpdateCheck prueft ob Updates verfuegbar sind
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func (h *Handler) handleUpdateCheck(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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log.Println("Update-Check gestartet...")
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result := map[string]interface{}{}
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// 1. OPNsense Core Update pruefen
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coreOutput, coreErr := h.runCommand("/usr/local/sbin/opnsense-update -c", 60)
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if coreErr != nil {
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// Exit 1 = Update verfuegbar
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result["core_update_available"] = true
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result["core_update_info"] = strings.TrimSpace(coreOutput)
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} else {
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result["core_update_available"] = false
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result["core_update_info"] = "Kein Core-Update verfuegbar"
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}
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// 2. Paket-Updates pruefen
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pkgOutput, _ := h.runCommand("/usr/sbin/pkg upgrade -n", 60)
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pendingPackages := h.parsePkgUpgrade(pkgOutput)
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result["package_update_available"] = len(pendingPackages) > 0
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result["pending_packages"] = pendingPackages
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result["pending_count"] = len(pendingPackages)
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response.Status = "ok"
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response.Data = result
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log.Printf("Update-Check abgeschlossen: Core=%v, Packages=%d",
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result["core_update_available"], len(pendingPackages))
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return response
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}
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// handleUpdate fuehrt ein normales Update durch (Core + Packages)
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func (h *Handler) handleUpdate(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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log.Println("Normales Update gestartet...")
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reboot := false
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if r, ok := msg.Params["reboot"].(bool); ok {
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reboot = r
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}
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result := map[string]interface{}{
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"steps": []map[string]interface{}{},
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}
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var steps []map[string]interface{}
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// Schritt 1: opnsense-update (Core + Firmware)
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log.Println("Update Schritt 1: opnsense-update")
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coreOutput, coreErr := h.runCommand("/usr/local/sbin/opnsense-update", 600)
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step1 := map[string]interface{}{
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"step": "opnsense-update",
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"output": coreOutput,
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"ok": coreErr == nil,
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}
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if coreErr != nil {
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step1["error"] = coreErr.Error()
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}
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steps = append(steps, step1)
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// Schritt 2: pkg upgrade -y (Paket-Updates)
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log.Println("Update Schritt 2: pkg upgrade -y")
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pkgOutput, pkgErr := h.runCommand("/usr/sbin/pkg upgrade -y", 600)
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step2 := map[string]interface{}{
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"step": "pkg upgrade",
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"output": pkgOutput,
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"ok": pkgErr == nil,
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}
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if pkgErr != nil {
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step2["error"] = pkgErr.Error()
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}
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steps = append(steps, step2)
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// Schritt 3: opnsense-update -c (Nachpruefung)
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log.Println("Update Schritt 3: Nachpruefung")
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checkOutput, checkErr := h.runCommand("/usr/local/sbin/opnsense-update -c", 60)
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stillPending := checkErr != nil
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step3 := map[string]interface{}{
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"step": "verify",
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"output": checkOutput,
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"updates_pending": stillPending,
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}
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steps = append(steps, step3)
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result["steps"] = steps
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result["reboot_requested"] = reboot
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// Gesamtstatus
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if coreErr == nil && pkgErr == nil {
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response.Status = "ok"
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result["message"] = "Update erfolgreich abgeschlossen"
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} else {
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response.Status = "ok" // Nicht "error" — teilweise Updates sind OK
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result["message"] = "Update mit Warnungen abgeschlossen"
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}
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// Reboot wenn gewuenscht
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if reboot {
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log.Println("Reboot nach Update angefordert...")
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result["reboot"] = "Reboot in 5 Sekunden..."
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response.Data = result
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// Response erst senden, dann rebooten
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go func() {
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time.Sleep(5 * time.Second)
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log.Println("Reboot wird ausgefuehrt...")
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exec.Command("/sbin/shutdown", "-r", "now").Run()
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}()
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return response
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}
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response.Data = result
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log.Println("Update abgeschlossen")
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return response
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}
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// handleMajorUpdate fuehrt ein Major-Upgrade durch
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func (h *Handler) handleMajorUpdate(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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targetVersion, ok := msg.Params["version"].(string)
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if !ok || targetVersion == "" {
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response.Status = "error"
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response.Error = "Parameter 'version' erforderlich (z.B. '26.7')"
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return response
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}
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reboot := false
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if r, ok := msg.Params["reboot"].(bool); ok {
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reboot = r
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}
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log.Printf("Major-Update auf Version %s gestartet...", targetVersion)
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result := map[string]interface{}{
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"target_version": targetVersion,
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}
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var steps []map[string]interface{}
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// Schritt 1: opnsense-update -r <version> (Release wechseln)
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log.Printf("Major-Update Schritt 1: opnsense-update -r %s", targetVersion)
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releaseCmd := fmt.Sprintf("/usr/local/sbin/opnsense-update -r %s", targetVersion)
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releaseOutput, releaseErr := h.runCommand(releaseCmd, 300)
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step1 := map[string]interface{}{
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"step": fmt.Sprintf("opnsense-update -r %s", targetVersion),
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"output": releaseOutput,
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"ok": releaseErr == nil,
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}
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if releaseErr != nil {
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step1["error"] = releaseErr.Error()
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steps = append(steps, step1)
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// Bei Fehler im Release-Wechsel abbrechen
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result["steps"] = steps
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result["message"] = "Release-Wechsel fehlgeschlagen"
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response.Status = "error"
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response.Error = "Release-Wechsel fehlgeschlagen"
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response.Data = result
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return response
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}
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steps = append(steps, step1)
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// Schritt 2: opnsense-update (eigentliches Update laden)
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log.Println("Major-Update Schritt 2: opnsense-update")
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updateOutput, updateErr := h.runCommand("/usr/local/sbin/opnsense-update", 900)
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step2 := map[string]interface{}{
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"step": "opnsense-update",
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"output": updateOutput,
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"ok": updateErr == nil,
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}
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if updateErr != nil {
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step2["error"] = updateErr.Error()
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}
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steps = append(steps, step2)
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// Schritt 3: pkg upgrade -y
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log.Println("Major-Update Schritt 3: pkg upgrade -y")
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pkgOutput, pkgErr := h.runCommand("/usr/sbin/pkg upgrade -y", 600)
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step3 := map[string]interface{}{
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"step": "pkg upgrade",
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"output": pkgOutput,
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"ok": pkgErr == nil,
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}
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if pkgErr != nil {
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step3["error"] = pkgErr.Error()
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}
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steps = append(steps, step3)
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result["steps"] = steps
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result["reboot_requested"] = reboot
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if updateErr == nil {
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result["message"] = fmt.Sprintf("Major-Update auf %s abgeschlossen", targetVersion)
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} else {
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result["message"] = fmt.Sprintf("Major-Update auf %s mit Warnungen", targetVersion)
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}
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response.Status = "ok"
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if reboot {
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log.Println("Reboot nach Major-Update angefordert...")
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result["reboot"] = "Reboot in 5 Sekunden..."
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response.Data = result
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go func() {
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time.Sleep(5 * time.Second)
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log.Println("Reboot wird ausgefuehrt...")
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exec.Command("/sbin/shutdown", "-r", "now").Run()
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}()
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return response
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}
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response.Data = result
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log.Printf("Major-Update auf %s abgeschlossen", targetVersion)
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return response
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}
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// handleReboot fuehrt einen Reboot durch
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func (h *Handler) handleReboot(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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delaySec := 5
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if d, ok := msg.Params["delay"].(float64); ok && d > 0 {
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delaySec = int(d)
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}
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log.Printf("Reboot angefordert (Verzoegerung: %ds)", delaySec)
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response.Status = "ok"
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response.Data = map[string]interface{}{
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"message": fmt.Sprintf("Reboot in %d Sekunden", delaySec),
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}
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go func() {
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time.Sleep(time.Duration(delaySec) * time.Second)
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log.Println("Reboot wird ausgefuehrt...")
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exec.Command("/sbin/shutdown", "-r", "now").Run()
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}()
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return response
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}
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// --- Tunnel Handlers ---
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func (h *Handler) handleTunnelConnect(msg Message) Message {
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response := Message{Type: "response", ID: msg.ID}
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sessionID, _ := msg.Params["session_id"].(string)
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tunnelID, _ := msg.Params["tunnel_id"].(string)
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targetHost, _ := msg.Params["target_host"].(string)
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targetPortFloat, _ := msg.Params["target_port"].(float64)
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targetPort := int(targetPortFloat)
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if sessionID == "" || targetHost == "" || targetPort <= 0 {
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response.Status = "error"
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response.Error = "session_id, target_host und target_port erforderlich"
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return response
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}
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if err := h.client.tunnelManager.ConnectSession(sessionID, tunnelID, targetHost, targetPort); err != nil {
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response.Status = "error"
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response.Error = fmt.Sprintf("Session-Connect fehlgeschlagen: %v", err)
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return response
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}
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response.Status = "ok"
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response.Data = map[string]interface{}{"session_id": sessionID}
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return response
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}
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func (h *Handler) handleTunnelDisconnect(msg Message) {
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sessionID, _ := msg.Params["session_id"].(string)
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if sessionID != "" {
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h.client.tunnelManager.DisconnectSession(sessionID)
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}
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}
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// --- Helper ---
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// runCommand fuehrt einen Shell-Befehl mit Timeout aus
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func (h *Handler) runCommand(command string, timeoutSec int) (string, error) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(timeoutSec)*time.Second)
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defer cancel()
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cmd := exec.CommandContext(ctx, "/bin/sh", "-c", command)
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output, err := cmd.CombinedOutput()
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return string(output), err
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}
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// parsePkgUpgrade parst die Ausgabe von "pkg upgrade -n"
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func (h *Handler) parsePkgUpgrade(output string) []map[string]string {
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var packages []map[string]string
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inUpgradeBlock := false
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for _, line := range strings.Split(output, "\n") {
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trimmed := strings.TrimSpace(line)
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if strings.Contains(trimmed, "packages to be UPGRADED") ||
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strings.Contains(trimmed, "will be affected") {
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inUpgradeBlock = true
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continue
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}
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if inUpgradeBlock && strings.Contains(trimmed, "->") {
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parts := strings.SplitN(trimmed, ":", 2)
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if len(parts) == 2 {
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pkg := strings.TrimSpace(parts[0])
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versions := strings.TrimSpace(parts[1])
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arrowParts := strings.SplitN(versions, "->", 2)
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if len(arrowParts) == 2 {
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packages = append(packages, map[string]string{
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"package": pkg,
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"current_version": strings.TrimSpace(arrowParts[0]),
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"new_version": strings.TrimSpace(arrowParts[1]),
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})
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}
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}
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}
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if inUpgradeBlock && (trimmed == "" || strings.HasPrefix(trimmed, "Number of")) {
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if !strings.HasPrefix(trimmed, "Number of") {
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inUpgradeBlock = false
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}
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}
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}
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return packages
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}
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// SendSessionData schickt Tunnel-Daten als Binary-Message zurueck zum Backend
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func (h *Handler) SendSessionData(sessionID string, data []byte) error {
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idBytes := []byte(sessionID)
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if len(idBytes) > 255 {
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return fmt.Errorf("session_id zu lang")
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}
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message := make([]byte, 1+len(idBytes)+len(data))
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message[0] = byte(len(idBytes))
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copy(message[1:], idBytes)
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copy(message[1+len(idBytes):], data)
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return h.client.SendBinaryData(message)
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}
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