1fc0874893
Part 1 - Database (kanzlai schema in Supabase): - Tenant-scoped tables: tenants, user_tenants, cases, parties, deadlines, appointments, documents, case_events - Global reference tables: proceeding_types, deadline_rules, holidays - RLS policies on all tenant-scoped tables - Seed: UPC proceeding types, 32 deadline rules (INF/CCR/REV/PI/APP), ZPO civil rules (Berufung, Revision, Einspruch), 2026 holidays Part 2 - Backend skeleton: - config: env var loading (DATABASE_URL, SUPABASE_*, ANTHROPIC_API_KEY) - db: sqlx connection pool with kanzlai search_path - auth: JWT verification middleware adapted from youpc.org, context helpers - models: Go structs for all tables with sqlx/json tags - router: route registration with auth middleware, /health + placeholder API routes - Updated main.go to wire everything together
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
package auth
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import (
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"fmt"
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"net/http"
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"strings"
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"time"
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"github.com/golang-jwt/jwt/v5"
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"github.com/google/uuid"
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)
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type Middleware struct {
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jwtSecret []byte
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}
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func NewMiddleware(jwtSecret string) *Middleware {
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return &Middleware{jwtSecret: []byte(jwtSecret)}
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}
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func (m *Middleware) RequireAuth(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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token := extractBearerToken(r)
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if token == "" {
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http.Error(w, "missing authorization token", http.StatusUnauthorized)
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return
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}
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userID, err := m.verifyJWT(token)
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if err != nil {
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http.Error(w, fmt.Sprintf("invalid token: %v", err), http.StatusUnauthorized)
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return
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}
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ctx := ContextWithUserID(r.Context(), userID)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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func (m *Middleware) verifyJWT(tokenStr string) (uuid.UUID, error) {
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parsedToken, err := jwt.Parse(tokenStr, func(t *jwt.Token) (interface{}, error) {
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if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
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}
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return m.jwtSecret, nil
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})
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if err != nil {
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return uuid.Nil, fmt.Errorf("parsing JWT: %w", err)
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}
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if !parsedToken.Valid {
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return uuid.Nil, fmt.Errorf("invalid JWT token")
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}
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claims, ok := parsedToken.Claims.(jwt.MapClaims)
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if !ok {
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return uuid.Nil, fmt.Errorf("extracting JWT claims")
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}
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if exp, ok := claims["exp"].(float64); ok {
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if time.Now().Unix() > int64(exp) {
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return uuid.Nil, fmt.Errorf("JWT token has expired")
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}
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}
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sub, ok := claims["sub"].(string)
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if !ok {
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return uuid.Nil, fmt.Errorf("missing sub claim in JWT")
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}
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userID, err := uuid.Parse(sub)
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if err != nil {
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return uuid.Nil, fmt.Errorf("invalid user ID format: %w", err)
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}
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return userID, nil
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}
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func extractBearerToken(r *http.Request) string {
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auth := r.Header.Get("Authorization")
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if auth == "" {
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return ""
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}
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parts := strings.SplitN(auth, " ", 2)
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if len(parts) != 2 || !strings.EqualFold(parts[0], "bearer") {
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return ""
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}
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return parts[1]
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}
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