Files
nexarch/workflow/cmd/workflow-app/main.go
T
patrickandClaude Sonnet 5.5 df9581cf45
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workflow, connect: bearerauth aus common/bearerauth
Die beiden gleichen Kopien entfallen; common v0.2.2. Das Testpflicht-Muster
fuer bearerauth wandert vom workflow-Gate in das common-Gate.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-29 23:41:06 +01:00

243 lines
10 KiB
Go

// Command workflow-app ist der gebuendelte Diensteinstiegspunkt fuer das
// NEXARCH-Workflow-Modul (ENG-11): bindet alle bereits fertigen
// HTTP-API-Pakete an einen einzigen net/http.ServeMux, analog
// connect/cmd/connect-app. Reines Wiring, keine neue Fachlogik.
package main
import (
"context"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"github.com/jackc/pgx/v5/pgxpool"
"gitea.perlbach24.de/scripte/nexarch/common/bearerauth"
"gitea.perlbach24.de/scripte/nexarch/common/moduleauth"
"gitea.perlbach24.de/scripte/nexarch/common/policyclient"
"gitea.perlbach24.de/scripte/nexarch/common/tenantregistryclient"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/approval"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/approvalapi"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/backchannel"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/backchannelapi"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/caseapi"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/caseobj"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/caseoverview"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/caseoverviewapi"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/escalation"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/escalationnotify"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/moduleadapter"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/notifyclient"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/reminder"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/routingrule"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/routingruleapi"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/routingsuggestclient"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/task"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/taskapi"
)
func requireEnv(name string) string {
v := os.Getenv(name)
if v == "" {
log.Fatalf("workflow-app: %s muss gesetzt sein", name)
}
return v
}
func main() {
dsn := requireEnv("NEXARCH_WORKFLOW_APP_TENANT_DSN")
serviceToken := requireEnv("NEXARCH_WORKFLOW_APP_SERVICE_TOKEN")
tenantSlug := requireEnv("NEXARCH_WORKFLOW_APP_TENANT_SLUG")
tenantRegistryURL := requireEnv("NEXARCH_TENANT_REGISTRY_URL")
tenantRegistryToken := os.Getenv("NEXARCH_TENANT_REGISTRY_SERVICE_TOKEN")
addr := os.Getenv("NEXARCH_WORKFLOW_APP_LISTEN_ADDR")
if addr == "" {
addr = "127.0.0.1:9600"
}
ctx := context.Background()
pool, err := pgxpool.New(ctx, dsn)
if err != nil {
log.Fatalf("workflow-app: datenbankverbindung: %v", err)
}
defer pool.Close()
verifier, allowHeaderAuth := buildIdentity(tenantSlug)
taskStore := task.NewStore(pool)
mux, err := buildMux(pool, taskStore, serviceToken, tenantSlug, tenantRegistryURL, tenantRegistryToken, buildPolicyClient())
if err != nil {
log.Fatalf("workflow-app: %v", err)
}
srv := &http.Server{
Addr: addr,
Handler: bearerauth.Middleware(verifier, allowHeaderAuth, mux),
ReadHeaderTimeout: 5 * time.Second,
ReadTimeout: 15 * time.Second,
WriteTimeout: 15 * time.Second,
IdleTimeout: 60 * time.Second,
}
go func() {
log.Printf("workflow-app: listening on %s", addr)
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("workflow-app: %v", err)
}
}()
stopEscalation := startEscalationDispatch(ctx, pool, taskStore, tenantSlug)
defer stopEscalation()
stop := make(chan os.Signal, 1)
signal.Notify(stop, syscall.SIGINT, syscall.SIGTERM)
<-stop
shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
_ = srv.Shutdown(shutdownCtx)
}
// buildIdentity richtet die Token-Pruefung ein. Ohne NEXARCH_WORKFLOW_APP_JWKS_URL
// muss der Uebergangsschalter NEXARCH_WORKFLOW_APP_ALLOW_HEADER_AUTH=1 gesetzt
// sein; sonst startet der Dienst nicht.
func buildIdentity(tenantSlug string) (*moduleauth.Verifier, bool) {
allowHeader := os.Getenv("NEXARCH_WORKFLOW_APP_ALLOW_HEADER_AUTH") == "1"
jwksURL := os.Getenv("NEXARCH_WORKFLOW_APP_JWKS_URL")
if allowHeader {
log.Print("workflow-app: WARNUNG: X-User-Id/X-Tenant-Slug ohne Token zugelassen (NEXARCH_WORKFLOW_APP_ALLOW_HEADER_AUTH=1), nicht authentifiziert")
}
if jwksURL == "" {
if !allowHeader {
log.Fatal("workflow-app: NEXARCH_WORKFLOW_APP_JWKS_URL fehlt (oder NEXARCH_WORKFLOW_APP_ALLOW_HEADER_AUTH=1 als Uebergang setzen)")
}
return nil, allowHeader
}
audience := os.Getenv("NEXARCH_WORKFLOW_APP_JWT_AUDIENCE")
if audience == "" {
audience = "workflow"
}
issuer := os.Getenv("NEXARCH_WORKFLOW_APP_JWT_ISSUER")
if issuer == "" {
issuer = "nexarch-core"
}
enforce := os.Getenv("NEXARCH_WORKFLOW_APP_JWT_AUDIENCE_ENFORCE") != "false"
v := moduleauth.NewVerifier(5*time.Minute, tenantSlug, moduleauth.HTTPKeyFetcher(jwksURL, nil)).Expect(audience, issuer, enforce)
return v, allowHeader
}
// buildMux verdrahtet alle bestehenden Workflow-API-Pakete auf einen
// gemeinsamen ServeMux (Akzeptanzkriterium 1) -- ausgelagert aus main(),
// damit ein Test denselben Aufbau real gegen eine Datenbank pruefen kann,
// ohne main() zu duplizieren.
func buildMux(pool *pgxpool.Pool, taskStore *task.Store, serviceToken, tenantSlug, tenantRegistryURL, tenantRegistryToken string, policy *policyclient.Client) (*http.ServeMux, error) {
engine, err := caseobj.NewEngineWithCase(pool, approval.ProcessDefinition)
if err != nil {
return nil, fmt.Errorf("prozess-engine aufbauen: %w", err)
}
caseSvc := caseobj.NewService(pool, engine)
approvalSvc := approval.NewService(pool, engine)
reminderStore := reminder.NewStore(pool, taskStore)
caseoverviewSvc := caseoverview.NewService(caseSvc, reminderStore)
tenantVerifier := tenantregistryclient.New(tenantRegistryURL, tenantRegistryToken)
backchannelSvc := backchannel.NewService(caseSvc, reminderStore, tenantSlug, tenantVerifier)
routingruleStore := routingrule.NewStore(pool)
mux := http.NewServeMux()
mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
caseapi.NewServer(caseSvc).RegisterRoutes(mux)
approvalapi.NewServer(approvalSvc).RegisterRoutes(mux)
caseoverviewapi.NewServer(caseoverviewSvc).RegisterRoutes(mux)
backchannelapi.NewServer(backchannelSvc).RegisterRoutes(mux)
routingruleapi.NewServer(routingruleStore, buildRoutingSuggester()).RegisterRoutes(mux)
moduleadapter.NewServer(pool, serviceToken, tenantSlug, tenantVerifier).RegisterRoutes(mux)
taskapi.NewServer(taskStore, tenantSlug).WithPolicy(policy).RegisterRoutes(mux)
return mux, nil
}
// buildPolicyClient liefert nil nur mit NEXARCH_WORKFLOW_APP_POLICY_DISABLED=1;
// ohne URL und ohne diesen Schalter startet der Dienst nicht.
func buildPolicyClient() *policyclient.Client {
policyURL := os.Getenv("NEXARCH_WORKFLOW_APP_POLICY_URL")
if policyURL == "" {
if os.Getenv("NEXARCH_WORKFLOW_APP_POLICY_DISABLED") != "1" {
log.Fatal("workflow-app: NEXARCH_WORKFLOW_APP_POLICY_URL fehlt (oder NEXARCH_WORKFLOW_APP_POLICY_DISABLED=1 als Uebergang setzen)")
}
log.Print("workflow-app: WARNUNG: Rechtepruefung workflow.task.read/write deaktiviert (NEXARCH_WORKFLOW_APP_POLICY_DISABLED=1)")
return nil
}
return policyclient.New(policyURL, requireEnv("NEXARCH_WORKFLOW_APP_POLICY_SERVICE_TOKEN"))
}
// buildRoutingSuggester verdrahtet RTE-05s Kopplung an AI WFS-02.
// NEXARCH_WORKFLOW_APP_AI_ROUTING_SUGGEST_BASE_URL bewusst optional --
// fehlt sie, ist das AI-Modul nicht aktiviert und routingruleapi liefert
// keinen KI-Vorschlag (AK2, fail open statt Blockade).
// Rueckgabetyp bewusst das Interface (nicht *routingsuggestclient.Client):
// ein typisierter Nil-Pointer als Interface-Wert waere != nil, das wuerde
// den fail-open-Check in routingruleapi (s.suggester == nil) unterlaufen.
func buildRoutingSuggester() routingruleapi.Suggester {
baseURL := os.Getenv("NEXARCH_WORKFLOW_APP_AI_ROUTING_SUGGEST_BASE_URL")
if baseURL == "" {
log.Print("workflow-app: NEXARCH_WORKFLOW_APP_AI_ROUTING_SUGGEST_BASE_URL nicht gesetzt, KI-Routing-Vorschlaege (RTE-05) sind deaktiviert")
return nil
}
serviceToken := requireEnv("NEXARCH_WORKFLOW_APP_AI_ROUTING_SUGGEST_SERVICE_TOKEN")
return routingsuggestclient.New(baseURL, serviceToken, &http.Client{Timeout: 3 * time.Second})
}
// startEscalationDispatch startet den periodischen TSK-05-Versand
// (escalationnotify.RunAt) als Ticker-Goroutine, da escalation.ProcessDue
// sonst nie in Produktion aufgerufen wird -- es gibt hier anders als bei
// RET-07/BAK-08 keinen systemd-Timer als externen Aufrufer. Die Dispatch-
// Konfiguration ist bewusst optional: fehlt sie, startet der Dienst
// trotzdem (Fristen/Eskalationen sind kein Kernbetriebsrisiko wie eine
// fehlende DSN), nur ohne Benachrichtigungsversand.
func startEscalationDispatch(ctx context.Context, pool *pgxpool.Pool, taskStore *task.Store, tenantSlug string) func() {
notifyBaseURL := os.Getenv("NEXARCH_WORKFLOW_APP_NOTIFY_BASE_URL")
if notifyBaseURL == "" {
log.Print("workflow-app: NEXARCH_WORKFLOW_APP_NOTIFY_BASE_URL nicht gesetzt, Eskalations-Benachrichtigung (TSK-05) laeuft nicht")
return func() {}
}
notifyServiceToken := requireEnv("NEXARCH_WORKFLOW_APP_NOTIFY_SERVICE_TOKEN")
interval := 5 * time.Minute
if raw := os.Getenv("NEXARCH_WORKFLOW_APP_ESCALATION_INTERVAL"); raw != "" {
parsed, err := time.ParseDuration(raw)
if err != nil {
log.Fatalf("workflow-app: NEXARCH_WORKFLOW_APP_ESCALATION_INTERVAL: %v", err)
}
interval = parsed
}
escalationStore := escalation.NewStore(pool)
notifyClient := notifyclient.New(notifyBaseURL, notifyServiceToken)
loopCtx, cancel := context.WithCancel(ctx)
ticker := time.NewTicker(interval)
go func() {
defer ticker.Stop()
for {
select {
case <-loopCtx.Done():
return
case now := <-ticker.C:
dispatched, err := escalationnotify.RunAt(loopCtx, escalationStore, taskStore, notifyClient, tenantSlug, nil, now)
if err != nil {
log.Printf("workflow-app: eskalations-durchlauf fehlgeschlagen: %v", err)
continue
}
if dispatched > 0 {
log.Printf("workflow-app: %d eskalation(en) benachrichtigt", dispatched)
}
}
}
}()
log.Printf("workflow-app: eskalations-benachrichtigung aktiv, intervall %s", interval)
return cancel
}