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Gleiche Aenderung wie workflow/internal/bearerauth, damit die Rechtepruefung aus #418 die echte Rolle bekommt. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
// Package bearerauth setzt die Identitaet der Connect-APIs aus einem
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// verifizierten Core-Modul-Token. Die Handler lesen weiter X-User-Id und
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// X-Tenant-Slug; die Middleware ueberschreibt beide aus den Claims, sodass ein
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// Client sie nicht frei setzen kann. X-User-Role kommt nur aus dem Token.
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package bearerauth
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import (
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"encoding/json"
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"errors"
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"net/http"
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"strings"
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"gitea.perlbach24.de/scripte/nexarch/common/moduleauth"
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)
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const (
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headerUser = "X-User-Id"
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headerTenant = "X-Tenant-Slug"
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headerRole = "X-User-Role"
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)
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// Middleware verlangt fuer Anfragen mit Authorization: Bearer ein gueltiges
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// Token. Ohne Bearer werden X-User-Id und X-Tenant-Slug entfernt, ausser
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// allowHeaderAuth ist gesetzt (Uebergang, bis alle Clients Bearer senden).
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func Middleware(v *moduleauth.Verifier, allowHeaderAuth bool, next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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r.Header.Del(headerRole)
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token, ok := bearer(r)
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if !ok {
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if !allowHeaderAuth {
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r.Header.Del(headerUser)
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r.Header.Del(headerTenant)
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}
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next.ServeHTTP(w, r)
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return
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}
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if v == nil {
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writeError(w, http.StatusUnauthorized, "nicht angemeldet")
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return
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}
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claims, err := v.Verify(r.Context(), token)
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if err != nil {
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if errors.Is(err, moduleauth.ErrInvalidToken) {
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writeError(w, http.StatusUnauthorized, "nicht angemeldet")
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} else {
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writeError(w, http.StatusServiceUnavailable, "identitaetsdienst nicht erreichbar")
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}
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return
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}
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r.Header.Set(headerUser, claims.Subject)
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r.Header.Set(headerTenant, claims.Tenant)
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if claims.Role != "" {
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r.Header.Set(headerRole, claims.Role)
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}
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next.ServeHTTP(w, r)
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})
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}
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func bearer(r *http.Request) (string, bool) {
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h := r.Header.Get("Authorization")
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if len(h) > 7 && strings.EqualFold(h[:7], "bearer ") {
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return strings.TrimSpace(h[7:]), true
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}
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return "", false
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}
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func writeError(w http.ResponseWriter, status int, message string) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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_ = json.NewEncoder(w).Encode(map[string]string{"error": message})
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}
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