Fixed the problem with generating error, when some of attributes is null

* Fixed the problem with generating error, when some of attributes 'eduPersonUniqueId', 'sourceIdPEppn', 'sourceIdPEntityId' is null

Author: vyskocilpavel

CHANGELOG.md

@@ -5,6 +5,9 @@ All notable changes to this project will be documented in this file.
 [Added]
 - Added file phpcs.xml
 
+[Fixed]
+- Fixed the problem with generating error, when some of attributes 'eduPersonUniqueId', 'sourceIdPEppn', 'sourceIdPEntityId' is null 
+
 [Changed]
 - Changed code style to PSR-2
 - Module uses namespaces

lib/Auth/Process/statistics.php

@@ -2,6 +2,7 @@
 
 namespace SimpleSAML\Module\proxystatistics\Auth\Process;
 
+use DateTime;
 use SimpleSAML\Error\Exception;
 use SimpleSAML\Logger;
 
@@ -27,13 +28,23 @@ public function __construct($config, $reserved)
 
     public function process(&$request)
     {
-        $dateTime = new \DateTime();
+        $dateTime = new DateTime();
         DatabaseCommand::insertLogin($request, $dateTime);
-
-        $eduPersonUniqueId = $request['Attributes']['eduPersonUniqueId'][0];
         $spEntityId = $request['SPMetadata']['entityid'];
-        $sourceIdPEppn = $request['Attributes']['sourceIdPEppn'][0];
-        $sourceIdPEntityId = $request['Attributes']['sourceIdPEntityID'][0];
+
+        $eduPersonUniqueId = '';
+        $sourceIdPEppn = '';
+        $sourceIdPEntityId = '';
+
+        if (isset($request['Attributes']['eduPersonUniqueId'][0])) {
+            $eduPersonUniqueId = $request['Attributes']['eduPersonUniqueId'][0];
+        }
+        if (isset($request['Attributes']['sourceIdPEppn'][0])) {
+            $sourceIdPEppn = $request['Attributes']['sourceIdPEppn'][0];
+        }
+        if (isset($request['Attributes']['sourceIdPEntityID'][0])) {
+            $sourceIdPEntityId = $request['Attributes']['sourceIdPEntityID'][0];
+        }
 
         if (isset($request['perun']['user'])) {
             $user = $request['perun']['user'];