no message

PV_Forecast_plotmemory/form.json

@@ -1,5 +1,6 @@
 {
   "elements": [
+    { "type": "ValidationTextBox", "name": "kunde", "caption": "Kundenname" },
     { "type": "ValidationTextBox", "name": "URL", "caption": "Solcast URL" },
     { "type": "SelectVariable", "name": "ActualVariableID", "caption": "Ist-Produktion Variable (Leistung)" },
     { "type": "CheckBox", "name": "ActualIsWatt", "caption": "Istwerte sind in Watt (in kW umrechnen)" },

PV_Forecast_plotmemory/module.php

@@ -11,6 +11,7 @@ class PV_Forecast_plotmemory extends IPSModule
 
         // Core
         $this->RegisterPropertyString("URL", "");
+        $this->RegisterPropertyString("kunde", "");
         $this->RegisterPropertyInteger("ActualVariableID", 0);
         $this->RegisterPropertyBoolean("ActualIsWatt", true);
 
@@ -553,9 +554,22 @@ class PV_Forecast_plotmemory extends IPSModule
             echo "No snapshots found";
             return;
         }
+        $kunde = trim($this->ReadPropertyString("kunde"));
+        $kunde = trim($this->ReadPropertyString("kunde"));
+        if ($kunde === "") {
+            $kunde = "unbekannt";
+        }
+
+        // Sonderzeichen entfernen (für Dateinamen!)
+        $kundeSafe = preg_replace('/[^a-zA-Z0-9_-]/', '_', $kunde);
 
         header("Content-Type: application/zip");
-        header('Content-Disposition: attachment; filename="pv_plots_' . $this->InstanceID . '_' . $days . 'days.zip"');
+        header(
+        'Content-Disposition: attachment; filename="pv_plots_' .
+        $kundeSafe . '_' .
+        $this->InstanceID . '_' .
+        $days . 'days.zip"'
+        );
         header("Content-Length: " . filesize($zipPath));
 
         readfile($zipPath);