connect: DATEV-Export in connect-app registriert, mit Rechtepruefung

/datev/exports braucht connect.datev.write (POST) bzw. connect.datev.read
(GET) mit der Rolle aus X-User-Role. Registriert nur mit
NEXARCH_CONNECT_APP_ARCHIVE_URL; die DATEV-Uebertragung bleibt aus.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

connect/cmd/connect-app/main.go

@@ -17,10 +17,13 @@ import (
 
 	"gitea.perlbach24.de/scripte/nexarch/common/moduleauth"
 	"gitea.perlbach24.de/scripte/nexarch/common/policyclient"
+	"gitea.perlbach24.de/scripte/nexarch/connect/internal/archiveclient"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/bearerauth"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/connectorsetupapi"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/credential"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/crypto"
+	"gitea.perlbach24.de/scripte/nexarch/connect/internal/datevapi"
+	"gitea.perlbach24.de/scripte/nexarch/connect/internal/datevexport"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/dms2import"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/dms2importapi"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/fieldmapping"
@@ -56,6 +59,25 @@ func buildPolicyClient() *policyclient.Client {
 	return policyclient.New(policyURL, token)
 }
 
+// buildDatevExports liefert nil ohne NEXARCH_CONNECT_APP_ARCHIVE_URL; dann ist
+// /datev/exports nicht registriert. Die DATEV-Uebertragung ist hier nicht verdrahtet.
+func buildDatevExports(pool *pgxpool.Pool) *datevexport.Store {
+	archiveURL := os.Getenv("NEXARCH_CONNECT_APP_ARCHIVE_URL")
+	if archiveURL == "" {
+		log.Print("connect-app: NEXARCH_CONNECT_APP_ARCHIVE_URL fehlt, /datev/exports nicht registriert")
+		return nil
+	}
+	token := os.Getenv("NEXARCH_CONNECT_APP_ARCHIVE_SERVICE_TOKEN")
+	if token == "" {
+		log.Fatal("connect-app: NEXARCH_CONNECT_APP_ARCHIVE_SERVICE_TOKEN ist erforderlich, wenn NEXARCH_CONNECT_APP_ARCHIVE_URL gesetzt ist")
+	}
+	return &datevexport.Store{
+		Pool:        pool,
+		Archive:     archiveclient.New(archiveURL, token),
+		CallbackURL: os.Getenv("NEXARCH_CONNECT_APP_DATEV_CALLBACK_URL"),
+	}
+}
+
 func main() {
 	if !killswitch.Enabled() {
 		log.Printf("connect-app: deaktiviert (%s=false), kein Start", killswitch.EnvEnabled)
@@ -98,6 +120,9 @@ func main() {
 	statusapi.NewServer(syncjob.NewStore(pool)).WithPolicy(policy).RegisterRoutes(mux)
 	dms2importapi.NewServer(mappings, dms2import.NewStore(pool)).RegisterRoutes(mux)
 	connectorsetupapi.NewServer(credentials, mappings).WithPolicy(policy).RegisterRoutes(mux)
+	if exports := buildDatevExports(pool); exports != nil {
+		datevapi.NewServer(exports, nil).WithPolicy(policy).RegisterRoutes(mux)
+	}
 
 	srv := &http.Server{
 		Addr:              addr,

connect/internal/datevapi/datevapi.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 	"time"
 
+	"gitea.perlbach24.de/scripte/nexarch/common/policyclient"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/datevexport"
 	"gitea.perlbach24.de/scripte/nexarch/connect/internal/datevtransfer"
 )
@@ -16,6 +17,12 @@ import (
 type Server struct {
 	Exports   *datevexport.Store
 	Transfers *datevtransfer.Store
+	policy    *policyclient.Client
+}
+
+func (s *Server) WithPolicy(client *policyclient.Client) *Server {
+	s.policy = client
+	return s
 }
 
 func NewServer(exports *datevexport.Store, transfers *datevtransfer.Store) *Server {
@@ -23,8 +30,32 @@ func NewServer(exports *datevexport.Store, transfers *datevtransfer.Store) *Serv
 }
 
 func (s *Server) RegisterRoutes(mux *http.ServeMux) {
-	mux.HandleFunc("POST /datev/exports", s.requireIdentity(s.handleTrigger))
-	mux.HandleFunc("GET /datev/exports", s.requireIdentity(s.handleList))
+	mux.HandleFunc("POST /datev/exports", s.requireIdentity(s.requirePermission("connect.datev.write", s.handleTrigger)))
+	mux.HandleFunc("GET /datev/exports", s.requireIdentity(s.requirePermission("connect.datev.read", s.handleList)))
+}
+
+func (s *Server) requirePermission(permission string, next func(w http.ResponseWriter, r *http.Request, tenantSlug string)) func(w http.ResponseWriter, r *http.Request, tenantSlug string) {
+	return func(w http.ResponseWriter, r *http.Request, tenantSlug string) {
+		if s.policy != nil {
+			allowed, err := s.policy.Allowed(r.Context(), tenantSlug, roleOf(r), permission)
+			if err != nil {
+				writeError(w, http.StatusServiceUnavailable, "berechtigungsdienst nicht erreichbar")
+				return
+			}
+			if !allowed {
+				writeError(w, http.StatusForbidden, "keine berechtigung")
+				return
+			}
+		}
+		next(w, r, tenantSlug)
+	}
+}
+
+func roleOf(r *http.Request) string {
+	if role := r.Header.Get("X-User-Role"); role != "" {
+		return role
+	}
+	return "user"
 }
 
 func (s *Server) requireIdentity(next func(w http.ResponseWriter, r *http.Request, tenantSlug string)) http.HandlerFunc {

connect/internal/datevapi/datevapi_policy_test.go

@@ -0,0 +1,46 @@
+package datevapi
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"gitea.perlbach24.de/scripte/nexarch/common/policyclient"
+)
+
+func TestPolicy_PermissionAndRoleReachCore(t *testing.T) {
+	type ask struct{ role, permission string }
+	var got []ask
+	policyAPI := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		var body struct {
+			Role       string `json:"role"`
+			Permission string `json:"permission"`
+		}
+		_ = json.NewDecoder(r.Body).Decode(&body)
+		got = append(got, ask{body.Role, body.Permission})
+		_ = json.NewEncoder(w).Encode(map[string]bool{"allowed": false})
+	}))
+	defer policyAPI.Close()
+	mux := http.NewServeMux()
+	(&Server{}).WithPolicy(policyclient.New(policyAPI.URL, "tok")).RegisterRoutes(mux)
+
+	for _, c := range []struct{ method, role string }{{"GET", "tenant_admin"}, {"POST", ""}} {
+		req := httptest.NewRequest(c.method, "/datev/exports", strings.NewReader("{}"))
+		req.Header.Set("X-User-Id", "u1")
+		req.Header.Set("X-Tenant-Slug", "acme")
+		if c.role != "" {
+			req.Header.Set("X-User-Role", c.role)
+		}
+		rec := httptest.NewRecorder()
+		mux.ServeHTTP(rec, req)
+		if rec.Code != http.StatusForbidden {
+			t.Fatalf("%s: erwartet 403, bekam %d", c.method, rec.Code)
+		}
+	}
+	want := []ask{{"tenant_admin", "connect.datev.read"}, {"user", "connect.datev.write"}}
+	if len(got) != 2 || got[0] != want[0] || got[1] != want[1] {
+		t.Fatalf("erwartet %v, bekam %v", want, got)
+	}
+}