Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplepress-backend/internal/interface/http/middleware/tenant.go

@@ -0,0 +1,37 @@
+package middleware
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	"codeberg.org/mapleopentech/monorepo/cloud/maplepress-backend/config/constants"
+)
+
+// TenantMiddleware extracts tenant ID from JWT session context and adds to context
+// This middleware must be used after JWT middleware in the chain
+func TenantMiddleware() func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			// Get tenant from JWT session context (set by JWT middleware)
+			tenantID, ok := r.Context().Value(constants.SessionTenantID).(string)
+			if !ok || tenantID == "" {
+				http.Error(w, "tenant context required", http.StatusUnauthorized)
+				return
+			}
+
+			// Add to context with constants.ContextKeyTenantID for handler access
+			ctx := context.WithValue(r.Context(), constants.ContextKeyTenantID, tenantID)
+			next.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+}
+
+// GetTenantID retrieves tenant ID from context
+func GetTenantID(ctx context.Context) (string, error) {
+	tenantID, ok := ctx.Value(constants.ContextKeyTenantID).(string)
+	if !ok || tenantID == "" {
+		return "", errors.New("tenant_id not found in context")
+	}
+	return tenantID, nil
+}