first commit

wp-content/plugins/mailchimp-for-wp/includes/admin/migrations/4.0.7-rename-debug-log-file.php

@@ -0,0 +1,33 @@
+<?php
+
+defined('ABSPATH') or exit;
+
+// get old log filename
+$upload_dir   = wp_upload_dir(null, false);
+$old_filename = trailingslashit($upload_dir['basedir']) . 'mc4wp-debug.log';
+$new_filename = trailingslashit($upload_dir['basedir']) . 'mc4wp-debug-log.php';
+
+// check if old default log file exists
+if (! file_exists($old_filename)) {
+    return;
+}
+
+// rename to new file.
+@rename($old_filename, $new_filename);
+
+// if success, insert php exit tag as first line
+if (file_exists($new_filename)) {
+    $handle = fopen($new_filename, 'r+');
+
+    if (is_resource($handle)) {
+        // make sure first line of log file is a PHP tag + exit statement (to prevent direct file access)
+        $line            = fgets($handle);
+        $php_exit_string = '<?php exit; ?>';
+        if (strpos($line, $php_exit_string) !== 0) {
+            rewind($handle);
+            fwrite($handle, $php_exit_string . PHP_EOL . $line);
+        }
+
+        fclose($handle);
+    }
+}