Compare commits
1
Commits
| Author | SHA1 | Date | |
|---|---|---|---|
|
|
b23cd1961f |
@@ -0,0 +1,99 @@
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package moduleregistry
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import (
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"context"
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"crypto/rand"
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"crypto/sha256"
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"crypto/subtle"
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"encoding/hex"
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"errors"
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"fmt"
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"github.com/jackc/pgx/v5"
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)
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var (
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ErrModuleNotRegistered = errors.New("moduleregistry: modul muss vor provisionierung registriert sein")
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ErrInvalidCredential = errors.New("moduleregistry: ungueltiges oder fehlendes service-credential")
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)
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// Provision stellt ein Service-Credential (Client-ID + Secret) fuer eine
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// Modul-Instanz aus (Akzeptanzkriterium 4). Das Secret wird NUR beim
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// Ausstellen im Klartext zurueckgegeben, gespeichert wird ausschliesslich
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// dessen SHA-256-Hash.
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func (r *Registry) Provision(ctx context.Context, moduleName string) (clientID, secret string, err error) {
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if _, err := r.Get(ctx, moduleName); err != nil {
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if errors.Is(err, ErrModuleNotFound) {
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return "", "", ErrModuleNotRegistered
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}
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return "", "", err
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}
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clientID, err = randomToken(16)
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if err != nil {
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return "", "", fmt.Errorf("client-id erzeugen: %w", err)
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}
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secret, err = randomToken(32)
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if err != nil {
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return "", "", fmt.Errorf("secret erzeugen: %w", err)
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}
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hash := hashSecret(secret)
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_, err = r.pool.Exec(ctx, `
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INSERT INTO module_credentials (module_name, client_id, secret_hash, issued_at)
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VALUES ($1, $2, $3, now())
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ON CONFLICT (module_name) DO UPDATE SET client_id = $2, secret_hash = $3, issued_at = now()
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`, moduleName, clientID, hash)
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if err != nil {
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return "", "", fmt.Errorf("credential speichern: %w", err)
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}
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return clientID, secret, nil
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}
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// Authenticate prueft ein Service-Credential timing-safe (Referenzmuster
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// siehe AUD-02) — Aufrufe ohne gueltiges Credential werden abgelehnt
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// (Akzeptanzkriterium 4 / Pruefung 4).
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func (r *Registry) Authenticate(ctx context.Context, clientID, secret string) (moduleName string, ok bool, err error) {
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if clientID == "" || secret == "" {
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return "", false, nil
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}
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var storedHash []byte
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err = r.pool.QueryRow(ctx, `
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SELECT module_name, secret_hash FROM module_credentials WHERE client_id = $1
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`, clientID).Scan(&moduleName, &storedHash)
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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return "", false, nil
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}
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return "", false, fmt.Errorf("credential lesen: %w", err)
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}
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if !timingSafeEqual(hashSecret(secret), storedHash) {
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return "", false, nil
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}
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return moduleName, true, nil
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}
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func randomToken(n int) (string, error) {
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buf := make([]byte, n)
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if _, err := rand.Read(buf); err != nil {
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return "", err
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}
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return hex.EncodeToString(buf), nil
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}
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func hashSecret(secret string) []byte {
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sum := sha256.Sum256([]byte(secret))
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return sum[:]
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}
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// timingSafeEqual folgt derselben Referenzimplementierung wie AUD-02
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// (subtle.ConstantTimeCompare) — projektweite Konvention fuer jeden
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// sicherheitsrelevanten Vergleich.
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func timingSafeEqual(a, b []byte) bool {
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if len(a) != len(b) {
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return false
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}
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return subtle.ConstantTimeCompare(a, b) == 1
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}
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@@ -0,0 +1,46 @@
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package moduleregistry
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import "net/http"
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// RequireActiveModule weist Anfragen an ein nicht aktiviertes Modul ZENTRAL
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// ab, bevor der eigentliche Modul-Handler erreicht wird (Akzeptanzkriterium 2 /
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// Pruefung 1) — Casbin-Prinzip: Durchsetzung als Middleware statt verstreuter
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// Pruefungen in jedem Handler. tenantSlug/moduleName werden hier ueber
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// Query-Parameter gelesen (echte Extraktion aus JWT/Tenant-Kontext ist
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// API-05/TEN-06, nicht Teil dieser Kachel).
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func (r *Registry) RequireActiveModule(moduleName string, next http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, req *http.Request) {
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tenantSlug := req.URL.Query().Get("tenant")
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active, err := r.IsActive(req.Context(), tenantSlug, moduleName)
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if err != nil {
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http.Error(w, "aktivierungspruefung fehlgeschlagen", http.StatusInternalServerError)
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return
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}
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if !active {
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http.Error(w, "modul nicht aktiviert", http.StatusForbidden)
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return
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}
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next(w, req)
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}
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}
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// RequireServiceCredential authentifiziert eine Modul-Instanz ueber ihr
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// Service-Credential (X-Client-Id/X-Client-Secret-Header) BEVOR der
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// eigentliche Handler erreicht wird (Akzeptanzkriterium 4 / Pruefung 4).
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func (r *Registry) RequireServiceCredential(next http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, req *http.Request) {
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clientID := req.Header.Get("X-Client-Id")
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secret := req.Header.Get("X-Client-Secret")
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_, ok, err := r.Authenticate(req.Context(), clientID, secret)
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if err != nil {
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http.Error(w, "authentifizierung fehlgeschlagen", http.StatusInternalServerError)
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return
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}
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if !ok {
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http.Error(w, ErrInvalidCredential.Error(), http.StatusUnauthorized)
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return
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}
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next(w, req)
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}
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}
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@@ -0,0 +1,120 @@
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// Package moduleregistry implementiert Core API-02: die Registry, in der
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// sich Fachmodule (DMS, Mail, weitere) mit Metadaten eintragen, gekoppelt an
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// die Aktivierungspruefung aus LIC-02 (Feature-Flags). Zusaetzlich
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// authentifiziert die Registry Modul-Instanzen selbst ueber ein bei
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// Provisionierung ausgestelltes Service-Credential.
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package moduleregistry
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import (
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"context"
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"errors"
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"fmt"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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"gitea.perlbach24.de/scripte/nexarch/internal/flag"
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)
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var (
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ErrMissingName = errors.New("moduleregistry: name darf nicht leer sein")
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ErrMissingVersion = errors.New("moduleregistry: version darf nicht leer sein")
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ErrModuleNotFound = errors.New("moduleregistry: modul nicht registriert")
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)
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type Module struct {
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Name string
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Version string
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RequiredFlags []string
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}
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type Registry struct {
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pool *pgxpool.Pool
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flags *flag.Service
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}
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func NewRegistry(pool *pgxpool.Pool, flags *flag.Service) *Registry {
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return &Registry{pool: pool, flags: flags}
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}
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// Register traegt ein Modul mit Name, Version und benoetigten Feature-Flags
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// ein (Akzeptanzkriterium 1). Fehlende Pflichtangaben werden abgewiesen
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// (Akzeptanzkriterium 1 / Pruefung 2). Erneutes Register desselben Namens
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// aktualisiert Version/Flags (Redeploy-Fall).
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func (r *Registry) Register(ctx context.Context, name, version string, requiredFlags []string) (Module, error) {
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if name == "" {
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return Module{}, ErrMissingName
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}
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if version == "" {
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return Module{}, ErrMissingVersion
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}
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if requiredFlags == nil {
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requiredFlags = []string{}
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}
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_, err := r.pool.Exec(ctx, `
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INSERT INTO modules (name, version, required_flags, registered_at)
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VALUES ($1, $2, $3, now())
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ON CONFLICT (name) DO UPDATE SET version = $2, required_flags = $3, registered_at = now()
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`, name, version, requiredFlags)
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if err != nil {
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return Module{}, fmt.Errorf("modul registrieren: %w", err)
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}
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return Module{Name: name, Version: version, RequiredFlags: requiredFlags}, nil
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}
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func (r *Registry) Get(ctx context.Context, name string) (Module, error) {
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var m Module
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m.Name = name
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err := r.pool.QueryRow(ctx, `
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SELECT version, required_flags FROM modules WHERE name = $1
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`, name).Scan(&m.Version, &m.RequiredFlags)
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if err != nil {
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if errors.Is(err, pgx.ErrNoRows) {
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return Module{}, ErrModuleNotFound
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}
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return Module{}, fmt.Errorf("modul lesen: %w", err)
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}
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return m, nil
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}
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// List liefert alle registrierten Module (Akzeptanzkriterium 3: ueber API
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// abfragbar, z.B. fuer Statusseite/Lizenzoberflaeche).
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func (r *Registry) List(ctx context.Context) ([]Module, error) {
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rows, err := r.pool.Query(ctx, `SELECT name, version, required_flags FROM modules ORDER BY name`)
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if err != nil {
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return nil, fmt.Errorf("module auflisten: %w", err)
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}
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defer rows.Close()
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var out []Module
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for rows.Next() {
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var m Module
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if err := rows.Scan(&m.Name, &m.Version, &m.RequiredFlags); err != nil {
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return nil, fmt.Errorf("modul lesen: %w", err)
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}
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out = append(out, m)
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}
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return out, rows.Err()
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}
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// IsActive prueft, ob ein registriertes Modul fuer einen Tenant aktiviert
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// ist: registriert UND alle benoetigten Feature-Flags sind fuer diesen
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// Tenant aktiv (Akzeptanzkriterium 2). Ein nicht registriertes Modul gilt
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// immer als nicht aktiv.
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func (r *Registry) IsActive(ctx context.Context, tenantSlug, moduleName string) (bool, error) {
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m, err := r.Get(ctx, moduleName)
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if err != nil {
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if errors.Is(err, ErrModuleNotFound) {
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return false, nil
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}
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return false, err
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}
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for _, flagKey := range m.RequiredFlags {
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if !r.flags.IsEnabled(ctx, tenantSlug, flagKey) {
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return false, nil
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}
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}
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return true, nil
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}
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@@ -0,0 +1,304 @@
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package moduleregistry
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import (
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"context"
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"os"
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"testing"
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"time"
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"github.com/jackc/pgx/v5/pgxpool"
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"gitea.perlbach24.de/scripte/nexarch/internal/flag"
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)
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func setupTest(t *testing.T) (*Registry, *flag.Store, func()) {
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t.Helper()
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adminDSN := os.Getenv("TEST_ADMIN_DSN")
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if adminDSN == "" {
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t.Skip("TEST_ADMIN_DSN nicht gesetzt, Integrationstest uebersprungen")
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}
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ctx := context.Background()
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pool, err := pgxpool.New(ctx, adminDSN)
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if err != nil {
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t.Fatalf("pool: %v", err)
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}
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if _, err := pool.Exec(ctx, `
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CREATE TABLE IF NOT EXISTS feature_flags (
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key TEXT PRIMARY KEY, enabled BOOLEAN NOT NULL DEFAULT false,
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rollout_percentage INT NOT NULL DEFAULT 0, target_tenant_slugs TEXT[] NOT NULL DEFAULT '{}',
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS modules (
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name TEXT PRIMARY KEY, version TEXT NOT NULL CHECK (version <> ''),
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required_flags TEXT[] NOT NULL DEFAULT '{}', registered_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS module_credentials (
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module_name TEXT PRIMARY KEY REFERENCES modules(name),
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client_id TEXT NOT NULL UNIQUE, secret_hash BYTEA NOT NULL,
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issued_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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`); err != nil {
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t.Fatalf("schema: %v", err)
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}
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flagStore := flag.NewStore(pool)
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// Kurze TTL, damit Tests, die den Flag-Store direkt aendern (an
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// Registry.IsActive vorbei), den neuen Stand ohne manuelles Invalidate
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// zuverlaessig sehen.
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flagService := flag.NewService(flagStore, 10*time.Millisecond)
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registry := NewRegistry(pool, flagService)
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cleanup := func() { pool.Close() }
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return registry, flagStore, cleanup
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}
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func uniqueModuleName(t *testing.T) string {
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return fmt.Sprintf("dms_%d", time.Now().UnixNano())
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}
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// Akzeptanzkriterium 1 + Pruefung 2: fehlende Pflichtangaben abgewiesen.
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func TestRegister_RejectsMissingFields(t *testing.T) {
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registry, _, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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if _, err := registry.Register(ctx, "", "1.0", nil); !errors.Is(err, ErrMissingName) {
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t.Fatalf("erwartet ErrMissingName, habe %v", err)
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}
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if _, err := registry.Register(ctx, "dms", "", nil); !errors.Is(err, ErrMissingVersion) {
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t.Fatalf("erwartet ErrMissingVersion, habe %v", err)
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}
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}
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func TestRegister_AndGet(t *testing.T) {
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registry, _, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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name := uniqueModuleName(t)
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m, err := registry.Register(ctx, name, "1.2.0", []string{"dms_enabled"})
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if err != nil {
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t.Fatalf("register: %v", err)
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}
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if m.Version != "1.2.0" || len(m.RequiredFlags) != 1 {
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t.Fatalf("unerwartet: %+v", m)
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}
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got, err := registry.Get(ctx, name)
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if err != nil {
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t.Fatalf("get: %v", err)
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}
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if got.Version != "1.2.0" {
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t.Fatalf("get version = %q", got.Version)
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}
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}
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// Akzeptanzkriterium 2 + 3 + Pruefung 3: konsistente Daten nach
|
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// Aktivierung/Deaktivierung eines Moduls.
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func TestIsActive_ReflectsFlagStateConsistently(t *testing.T) {
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registry, flagStore, cleanup := setupTest(t)
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defer cleanup()
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ctx := context.Background()
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name := uniqueModuleName(t)
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flagKey := name + "_enabled"
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if _, err := registry.Register(ctx, name, "1.0", []string{flagKey}); err != nil {
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t.Fatalf("register: %v", err)
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}
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active, err := registry.IsActive(ctx, "acme", name)
|
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if err != nil {
|
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t.Fatalf("is active (vor flag): %v", err)
|
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}
|
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if active {
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t.Fatal("erwartet nicht aktiv, solange flag nicht gesetzt ist")
|
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}
|
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|
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if err := flagStore.Set(ctx, flag.Flag{Key: flagKey, Enabled: true}); err != nil {
|
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t.Fatalf("flag setzen: %v", err)
|
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}
|
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time.Sleep(20 * time.Millisecond) // TTL abwarten
|
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|
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active, err = registry.IsActive(ctx, "acme", name)
|
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if err != nil {
|
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t.Fatalf("is active (nach flag an): %v", err)
|
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}
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if !active {
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t.Fatal("erwartet aktiv, nachdem flag aktiviert wurde")
|
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}
|
||||
|
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if err := flagStore.Set(ctx, flag.Flag{Key: flagKey, Enabled: false}); err != nil {
|
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t.Fatalf("flag zuruecksetzen: %v", err)
|
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}
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time.Sleep(20 * time.Millisecond) // TTL abwarten
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active, err = registry.IsActive(ctx, "acme", name)
|
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if err != nil {
|
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t.Fatalf("is active (nach flag aus): %v", err)
|
||||
}
|
||||
if active {
|
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t.Fatal("erwartet wieder nicht aktiv, nachdem flag deaktiviert wurde")
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||||
}
|
||||
}
|
||||
|
||||
func TestIsActive_UnregisteredModuleIsNeverActive(t *testing.T) {
|
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registry, _, cleanup := setupTest(t)
|
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defer cleanup()
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ctx := context.Background()
|
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|
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active, err := registry.IsActive(ctx, "acme", "nie-registriert")
|
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if err != nil {
|
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t.Fatalf("is active: %v", err)
|
||||
}
|
||||
if active {
|
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t.Fatal("unregistriertes modul darf nie aktiv sein")
|
||||
}
|
||||
}
|
||||
|
||||
// Akzeptanzkriterium 2 + Pruefung 1: Anfrage an deaktiviertes Modul wird
|
||||
// zentral abgewiesen, BEVOR die Modul-Logik erreicht wird.
|
||||
func TestRequireActiveModule_BlocksBeforeHandler(t *testing.T) {
|
||||
registry, flagStore, cleanup := setupTest(t)
|
||||
defer cleanup()
|
||||
ctx := context.Background()
|
||||
name := uniqueModuleName(t)
|
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flagKey := name + "_enabled"
|
||||
|
||||
if _, err := registry.Register(ctx, name, "1.0", []string{flagKey}); err != nil {
|
||||
t.Fatalf("register: %v", err)
|
||||
}
|
||||
|
||||
handlerReached := false
|
||||
handler := registry.RequireActiveModule(name, func(w http.ResponseWriter, r *http.Request) {
|
||||
handlerReached = true
|
||||
w.WriteHeader(http.StatusOK)
|
||||
})
|
||||
|
||||
req := httptest.NewRequest(http.MethodGet, "/modul?tenant=acme", nil)
|
||||
rec := httptest.NewRecorder()
|
||||
handler(rec, req)
|
||||
if rec.Code != http.StatusForbidden {
|
||||
t.Fatalf("status = %d, want 403", rec.Code)
|
||||
}
|
||||
if handlerReached {
|
||||
t.Fatal("handler haette bei deaktiviertem modul NICHT erreicht werden duerfen")
|
||||
}
|
||||
|
||||
if err := flagStore.Set(ctx, flag.Flag{Key: flagKey, Enabled: true}); err != nil {
|
||||
t.Fatalf("flag setzen: %v", err)
|
||||
}
|
||||
req2 := httptest.NewRequest(http.MethodGet, "/modul?tenant=acme", nil)
|
||||
rec2 := httptest.NewRecorder()
|
||||
handler(rec2, req2)
|
||||
if rec2.Code != http.StatusOK {
|
||||
t.Fatalf("status nach aktivierung = %d, want 200", rec2.Code)
|
||||
}
|
||||
if !handlerReached {
|
||||
t.Fatal("handler haette bei aktiviertem modul erreicht werden muessen")
|
||||
}
|
||||
}
|
||||
|
||||
// Akzeptanzkriterium 4 + Pruefung 4: gueltiges/ungueltiges Service-Credential.
|
||||
func TestProvisionAndAuthenticate(t *testing.T) {
|
||||
registry, _, cleanup := setupTest(t)
|
||||
defer cleanup()
|
||||
ctx := context.Background()
|
||||
name := uniqueModuleName(t)
|
||||
|
||||
if _, err := registry.Register(ctx, name, "1.0", nil); err != nil {
|
||||
t.Fatalf("register: %v", err)
|
||||
}
|
||||
|
||||
clientID, secret, err := registry.Provision(ctx, name)
|
||||
if err != nil {
|
||||
t.Fatalf("provision: %v", err)
|
||||
}
|
||||
if clientID == "" || secret == "" {
|
||||
t.Fatal("erwartet nicht-leere client-id/secret")
|
||||
}
|
||||
|
||||
moduleName, ok, err := registry.Authenticate(ctx, clientID, secret)
|
||||
if err != nil {
|
||||
t.Fatalf("authenticate (korrekt): %v", err)
|
||||
}
|
||||
if !ok || moduleName != name {
|
||||
t.Fatalf("erwartet erfolgreiche authentifizierung fuer %q, habe ok=%v moduleName=%q", name, ok, moduleName)
|
||||
}
|
||||
|
||||
_, ok, err = registry.Authenticate(ctx, clientID, "falsches-secret")
|
||||
if err != nil {
|
||||
t.Fatalf("authenticate (falsch): %v", err)
|
||||
}
|
||||
if ok {
|
||||
t.Fatal("erwartet fehlschlag bei falschem secret")
|
||||
}
|
||||
|
||||
_, ok, err = registry.Authenticate(ctx, "unbekannte-client-id", secret)
|
||||
if err != nil {
|
||||
t.Fatalf("authenticate (unbekannt): %v", err)
|
||||
}
|
||||
if ok {
|
||||
t.Fatal("erwartet fehlschlag bei unbekannter client-id")
|
||||
}
|
||||
}
|
||||
|
||||
func TestProvision_RequiresRegisteredModule(t *testing.T) {
|
||||
registry, _, cleanup := setupTest(t)
|
||||
defer cleanup()
|
||||
ctx := context.Background()
|
||||
|
||||
if _, _, err := registry.Provision(ctx, "nie-registriert"); !errors.Is(err, ErrModuleNotRegistered) {
|
||||
t.Fatalf("erwartet ErrModuleNotRegistered, habe %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestRequireServiceCredential_RejectsInvalidAcceptsValid(t *testing.T) {
|
||||
registry, _, cleanup := setupTest(t)
|
||||
defer cleanup()
|
||||
ctx := context.Background()
|
||||
name := uniqueModuleName(t)
|
||||
|
||||
if _, err := registry.Register(ctx, name, "1.0", nil); err != nil {
|
||||
t.Fatalf("register: %v", err)
|
||||
}
|
||||
clientID, secret, err := registry.Provision(ctx, name)
|
||||
if err != nil {
|
||||
t.Fatalf("provision: %v", err)
|
||||
}
|
||||
|
||||
handler := registry.RequireServiceCredential(func(w http.ResponseWriter, r *http.Request) {
|
||||
w.WriteHeader(http.StatusOK)
|
||||
})
|
||||
|
||||
// Fehlendes Credential.
|
||||
req := httptest.NewRequest(http.MethodPost, "/service-aufruf", nil)
|
||||
rec := httptest.NewRecorder()
|
||||
handler(rec, req)
|
||||
if rec.Code != http.StatusUnauthorized {
|
||||
t.Fatalf("ohne credential: status = %d, want 401", rec.Code)
|
||||
}
|
||||
|
||||
// Falsches Secret.
|
||||
req2 := httptest.NewRequest(http.MethodPost, "/service-aufruf", nil)
|
||||
req2.Header.Set("X-Client-Id", clientID)
|
||||
req2.Header.Set("X-Client-Secret", "falsch")
|
||||
rec2 := httptest.NewRecorder()
|
||||
handler(rec2, req2)
|
||||
if rec2.Code != http.StatusUnauthorized {
|
||||
t.Fatalf("falsches secret: status = %d, want 401", rec2.Code)
|
||||
}
|
||||
|
||||
// Gueltiges Credential.
|
||||
req3 := httptest.NewRequest(http.MethodPost, "/service-aufruf", nil)
|
||||
req3.Header.Set("X-Client-Id", clientID)
|
||||
req3.Header.Set("X-Client-Secret", secret)
|
||||
rec3 := httptest.NewRecorder()
|
||||
handler(rec3, req3)
|
||||
if rec3.Code != http.StatusOK {
|
||||
t.Fatalf("gueltiges credential: status = %d, want 200", rec3.Code)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,2 @@
|
||||
DROP TABLE IF EXISTS module_credentials;
|
||||
DROP TABLE IF EXISTS modules;
|
||||
@@ -0,0 +1,18 @@
|
||||
-- Modul-Registry & Aktivierungspruefung (API-02, siehe core-kanban/tickets/API-02.md).
|
||||
CREATE TABLE modules (
|
||||
name TEXT PRIMARY KEY,
|
||||
version TEXT NOT NULL CHECK (version <> ''),
|
||||
required_flags TEXT[] NOT NULL DEFAULT '{}',
|
||||
registered_at TIMESTAMPTZ NOT NULL DEFAULT now()
|
||||
);
|
||||
|
||||
-- Service-Credential je Modul-Instanz, bei Provisionierung ausgestellt
|
||||
-- (Akzeptanzkriterium 4). secret_hash enthaelt NIEMALS das Secret im
|
||||
-- Klartext, nur dessen SHA-256-Hash (Timing-safe-Vergleich beim Login,
|
||||
-- Referenzmuster siehe AUD-02).
|
||||
CREATE TABLE module_credentials (
|
||||
module_name TEXT PRIMARY KEY REFERENCES modules(name),
|
||||
client_id TEXT NOT NULL UNIQUE,
|
||||
secret_hash BYTEA NOT NULL,
|
||||
issued_at TIMESTAMPTZ NOT NULL DEFAULT now()
|
||||
);
|
||||
Reference in New Issue
Block a user