added DEBUG_MAIL_LOG_FILE_NAME config to config_defaults.inc.php and regard it in the debug_message extension of email_message_class, closes #5133

Closes #5133

Merge request studip/studip!3839

2 files changed, 13 insertions, 5 deletions

diff --git a/config/config_defaults.inc.php b/config/config_defaults.inc.php
index 632427f..c120e86 100644
--- a/config/config_defaults.inc.php
+++ b/config/config_defaults.inc.php
@@ -143,6 +143,12 @@ $MAIL_BULK_DELIVERY = FALSE;                        //try to improve the message
 $MAIL_VALIDATE_HOST = TRUE;                             //check for valid mail host when user enters email adress
 $MAIL_VALIDATE_BOX = FALSE;                              //check for valid mail account when user enters email adress; set to false if the webserver got no valid MX record
 
+/**
+ * The file name in the temporary directory ($TMP_PATH) where debug mails shall be written into.
+ * This is only regarded when $MAIL_TRANSPORT is set to 'debug'.
+ */
+$DEBUG_MAIL_LOG_FILE_NAME = 'studip-mail-debug.log';
+
 $MESSAGING_FORWARD_AS_EMAIL = TRUE;                         //enable to forward every internal message to the user-mail (the user is able to deactivate this function in his personal settings)
 $MESSAGING_FORWARD_DEFAULT = 2;                             //the default setting: if 1, the user has to switch it on; if 2, every message will be forwarded; if 3 every message will be forwarded on request of the sender
 $MESSAGING_FORWARD_USE_REPLYTO = TRUE;                     //send forwarded messages as system user and add reply-to header
diff --git a/vendor/email_message/debug_message.php b/vendor/email_message/debug_message.php
index ea8bd6b..4882570 100644
--- a/vendor/email_message/debug_message.php
+++ b/vendor/email_message/debug_message.php
@@ -9,12 +9,14 @@
 
 class debug_message_class extends email_message_class
 {
+    private $logfile = '';
 
-	private $logfile ="";
-
-	function __construct() {
-		$this->logfile = $GLOBALS['TMP_PATH'] . '/studip-mail-debug.log';
-	}
+    function __construct() {
+        $this->logfile = implode('/', [
+            $GLOBALS['TMP_PATH'],
+            $GLOBALS['DEBUG_MAIL_LOG_FILE_NAME'] ?? 'studip-mail-debug.log'
+        ]);
+    }
 
 	function SendMail($to,$subject,$body,$headers,$return_path) {
 		if ($log = fopen($this->logfile, "a")){