feat: versão 1.5 - CRM Beta com leads, funis, campanhas e portal do cliente

backend/internal/api/middleware/customer_auth.go

@@ -0,0 +1,85 @@
+package middleware
+
+import (
+	"aggios-app/backend/internal/config"
+	"context"
+	"log"
+	"net/http"
+	"strings"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+const (
+	CustomerIDKey contextKey = "customer_id"
+)
+
+// CustomerAuthMiddleware valida tokens JWT de clientes do portal
+func CustomerAuthMiddleware(cfg *config.Config) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			// Extrair token do header Authorization
+			authHeader := r.Header.Get("Authorization")
+			if authHeader == "" {
+				http.Error(w, "Authorization header required", http.StatusUnauthorized)
+				return
+			}
+
+			// Remover "Bearer " prefix
+			tokenString := strings.TrimPrefix(authHeader, "Bearer ")
+			if tokenString == authHeader {
+				http.Error(w, "Invalid authorization format", http.StatusUnauthorized)
+				return
+			}
+
+			// Parse e validar token
+			token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
+				// Verificar método de assinatura
+				if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+					return nil, jwt.ErrSignatureInvalid
+				}
+				return []byte(cfg.JWT.Secret), nil
+			})
+
+			if err != nil || !token.Valid {
+				log.Printf("Invalid token: %v", err)
+				http.Error(w, "Invalid or expired token", http.StatusUnauthorized)
+				return
+			}
+
+			// Extrair claims
+			claims, ok := token.Claims.(jwt.MapClaims)
+			if !ok {
+				http.Error(w, "Invalid token claims", http.StatusUnauthorized)
+				return
+			}
+
+			// Verificar se é token de customer
+			tokenType, _ := claims["type"].(string)
+			if tokenType != "customer_portal" {
+				http.Error(w, "Invalid token type", http.StatusUnauthorized)
+				return
+			}
+
+			// Extrair customer_id e tenant_id
+			customerID, ok := claims["customer_id"].(string)
+			if !ok {
+				http.Error(w, "Invalid customer_id in token", http.StatusUnauthorized)
+				return
+			}
+
+			tenantID, ok := claims["tenant_id"].(string)
+			if !ok {
+				http.Error(w, "Invalid tenant_id in token", http.StatusUnauthorized)
+				return
+			}
+
+			// Adicionar ao contexto
+			ctx := context.WithValue(r.Context(), CustomerIDKey, customerID)
+			ctx = context.WithValue(ctx, TenantIDKey, tenantID)
+
+			// Prosseguir com a requisição
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}