add log and fix source url

app/Libraries/EarcUtils.php

@@ -4,6 +4,7 @@ namespace app\Libraries;
 
 use SimpleSAML\Configuration;
 use SimpleSAML\Module\metarefresh\MetaLoader;
+use Illuminate\Support\Facades\Log;
 
 class EarcUtils
 {
@@ -103,8 +104,10 @@ class EarcUtils
      */
     public static function getIdpMetadata($entityid)
     {
+        $source_url = config('app.metadata_url') . "/" . urlencode($entityid);
+        Log::info("metadata source url: {url}",  [ 'url' =>  $source_url]);
         $metaloader = new MetaLoader(null);
-        $metaloader->loadSource(array('src' => config('app.metadata_url') . urlencode($entityid)));
+        $metaloader->loadSource(array('src' => $source_url));
         $metaloader->writeMetadataFiles(Configuration::getInstance()->getPathValue('metadatagenerateddir', 'metadata-generated-idp/'));
 
         include Configuration::getInstance()->getPathValue('metadatagenerateddir', 'metadata-generated-idp/').'saml20-idp-remote.php';