From 1eb90f539358cda123f1d2d456c3a119cec064c6 Mon Sep 17 00:00:00 2001
From: Hemachandar <hmac.devo@gmail.com>
Date: Tue, 7 Oct 2025 14:51:00 +0530
Subject: [PATCH] fix: Allow hyphen and underscore in filename

---
 src/Storage/Validator/FileName.php       | 4 ++--
 tests/Storage/Validator/FileNameTest.php | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Storage/Validator/FileName.php b/src/Storage/Validator/FileName.php
index 7a1885e8..56dfa1e8 100644
--- a/src/Storage/Validator/FileName.php
+++ b/src/Storage/Validator/FileName.php
@@ -15,7 +15,7 @@ public function getDescription(): string
     }
 
     /**
-     * The file name can only contain "a-z", "A-Z", "0-9" and "-" and not empty.
+     * The file name can only contain "a-z", "A-Z", "0-9", ".", "-", and "_", and not empty.
      *
      * @param  mixed  $name
      * @return bool
@@ -30,7 +30,7 @@ public function isValid($name): bool
             return false;
         }
 
-        if (! \preg_match('/^[a-zA-Z0-9.]+$/', $name)) {
+        if (! \ctype_alnum(\str_replace(['.', '-', '_'], '', $name))) {
             return false;
         }
 
diff --git a/tests/Storage/Validator/FileNameTest.php b/tests/Storage/Validator/FileNameTest.php
index f3358bfe..0dcde9fc 100644
--- a/tests/Storage/Validator/FileNameTest.php
+++ b/tests/Storage/Validator/FileNameTest.php
@@ -29,5 +29,8 @@ public function testValues()
         $this->assertEquals($this->object->isValid('../test'), false);
         $this->assertEquals($this->object->isValid('test.png'), true);
         $this->assertEquals($this->object->isValid('test'), true);
+        $this->assertEquals($this->object->isValid('test-test'), true);
+        $this->assertEquals($this->object->isValid('test_test'), true);
+        $this->assertEquals($this->object->isValid('test.test-test_test'), true);
     }
 }