修改文件上传，文件后缀验证机制

zoujingli · Sep 15, 2021 · 0bf173c · 0bf173c
1 parent b1fab14
commit 0bf173c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/app/admin/controller/api/Upload.php b/app/admin/controller/api/Upload.php
@@ -112,7 +112,7 @@ public function file()
         $extension = strtolower($file->getOriginalExtension());
         $saveName = input('key') ?: Storage::name($file->getPathname(), $extension, '', 'md5_file');
         // 检查文件后缀是否被恶意修改
-        if (ltrim(strtolower(strrchr($saveName, '.')), '.') !== $extension) {
+        if (pathinfo(parse_url($saveName, PHP_URL_PATH), PATHINFO_EXTENSION) !== $extension) {
             $this->error('文件后缀异常，请重新上传文件！');
         }
         // 屏蔽禁止上传指定后缀的文件