Logging: improve formatting to enable fail2ban parsing

[github/shaarli/Shaarli.git] / application / Utils.php

diff --git a/application/Utils.php b/application/Utils.php
index aeaef9ff143a84e67f16bb99365fcdbd70680608..cb30595f13cac0c977ce2aa0f7cdf554d345a3fe 100644 (file)
--- a/application/Utils.php
+++ b/application/Utils.php
@@ -3,6 +3,24 @@
  * Shaarli utilities
  */
 
+/**
+ * Logs a message to a text file
+ *
+ * The log format is compatible with fail2ban.
+ *
+ * @param string $logFile  where to write the logs
+ * @param string $clientIp the client's remote IPv4/IPv6 address
+ * @param string $message  the message to log
+ */
+function logm($logFile, $clientIp, $message)
+{
+    file_put_contents(
+        $logFile,
+        date('Y/m/d H:i:s').' - '.$clientIp.' - '.strval($message).'\n',
+        FILE_APPEND
+    );
+}
+
 /**
  *  Returns the small hash of a string, using RFC 4648 base64url format
  *