From ea845d017b150e45966b9e6a3e456c8c4c3fd9ae Mon Sep 17 00:00:00 2001
From: Osama Mohammed Al-Zabidi
 <57198110+osamalzabidi@users.noreply.github.com>
Date: Wed, 19 Nov 2025 01:48:58 +0300
Subject: [PATCH] Improvements Over Path check Regex

1. Allows spaces and special characters commonly found in paths
2. Platform-aware - distinguishes between Windows and Unix paths
3. Excludes invalid characters (*, ?, ", <, >, |)
4. Context-aware - considers file extensions and path structure
5. Better false-positive prevention - excludes URLs and base64
---
 packages/flet/lib/src/utils/images.dart | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/packages/flet/lib/src/utils/images.dart b/packages/flet/lib/src/utils/images.dart
index c87b867b7f..5fe56b41ac 100644
--- a/packages/flet/lib/src/utils/images.dart
+++ b/packages/flet/lib/src/utils/images.dart
@@ -91,13 +91,21 @@ bool isBase64ImageString(String value) {
 
 bool isUrlOrPath(String value) {
   // Check for URL pattern
-  final urlPattern = RegExp(r'^(http:\/\/|https:\/\/|www\.)');
+  final urlPattern = RegExp(r'^(https?:\/\/|www\.)');
   if (urlPattern.hasMatch(value)) {
     return true;
   }
 
   // Check for common file path characters
-  final filePathPattern = RegExp(r'^[a-zA-Z0-9_\-/\\\.]+$');
+  final filePathPattern = RegExp(
+    r'^('
+    r'([a-zA-Z]:\\|\\\\)?([^\\/:*?"<>|\r\n]+\\)*[^\\/:*?"<>|\r\n]*'  // Windows paths
+    r'|'  // OR
+    r'(~?\/|\.\/|\.\.\/)?([^\/:*?"<>|\r\n]+\/)*[^\/:*?"<>|\r\n]*'    // Unix paths  
+    r'|'  // OR
+    r'[^\\/:*?"<>|\r\n]+'  // Just filenames without path separators
+    r')$'  
+  );
   if (filePathPattern.hasMatch(value)) {
     return true;
   }