[6.x] Allow absolute file path for Storage::putFileAs() (#30918)

* Update FilesystemAdapter.php

* allow absolute file path for Storage::putFileAs

* update test

src/Illuminate/Filesystem/FilesystemAdapter.php

@@ -241,14 +241,16 @@ public function putFile($path, $file, $options = [])
      * Store the uploaded file on the disk with a given name.
      *
      * @param  string  $path
-     * @param  \Illuminate\Http\File|\Illuminate\Http\UploadedFile  $file
+     * @param  \Illuminate\Http\File|\Illuminate\Http\UploadedFile|string  $file
      * @param  string  $name
      * @param  array  $options
      * @return string|false
      */
     public function putFileAs($path, $file, $name, $options = [])
     {
-        $stream = fopen($file->getRealPath(), 'r');
+        $filePath = is_string($file) ? $file : $file->getRealPath();
+
+        $stream = fopen($filePath, 'r');
 
         // Next, we will format the path of the file and store the file using a stream since
         // they provide better performance than alternatives. Once we write the file this

tests/Filesystem/FilesystemAdapterTest.php

@@ -6,6 +6,7 @@
 use Illuminate\Contracts\Filesystem\FileExistsException;
 use Illuminate\Contracts\Filesystem\FileNotFoundException;
 use Illuminate\Filesystem\FilesystemAdapter;
+use Illuminate\Http\UploadedFile;
 use InvalidArgumentException;
 use League\Flysystem\Adapter\Local;
 use League\Flysystem\Filesystem;
@@ -240,4 +241,34 @@ public function testPutWithStreamInterface()
         $spy->shouldHaveReceived('putStream');
         $this->assertEquals('some-data', $filesystemAdapter->get('bar.txt'));
     }
+
+    public function testPutFileAs()
+    {
+        file_put_contents($filePath = $this->tempDir.'/foo.txt', 'uploaded file content');
+
+        $filesystemAdapter = new FilesystemAdapter($this->filesystem);
+
+        $uploadedFile = new UploadedFile($filePath, 'org.txt', null, null, true);
+
+        $storagePath = $filesystemAdapter->putFileAs('/', $uploadedFile, 'new.txt');
+
+        $this->assertSame('new.txt', $storagePath);
+
+        $this->assertFileExists($filePath);
+
+        $filesystemAdapter->assertExists($storagePath);
+
+        $this->assertSame('uploaded file content', $filesystemAdapter->read($storagePath));
+    }
+
+    public function testPutFileAsWithAbsoluteFilePath()
+    {
+        file_put_contents($filePath = $this->tempDir.'/foo.txt', 'normal file content');
+
+        $filesystemAdapter = new FilesystemAdapter($this->filesystem);
+
+        $storagePath = $filesystemAdapter->putFileAs('/', $filePath, 'new.txt');
+
+        $this->assertSame('normal file content', $filesystemAdapter->read($storagePath));
+    }
 }