[Mime] When serializing File parts convert to string to to allow proper unserialization. Fixes symfony#47991.

ovrflo · ovrflo · commit 33408bc88204 · 2022-11-08T16:53:55.000+02:00
diff --git a/src/Symfony/Component/Mime/Part/TextPart.php b/src/Symfony/Component/Mime/Part/TextPart.php
@@ -218,7 +218,7 @@ private function chooseEncoding(): string
     public function __sleep(): array
     {
         // convert resources to strings for serialization
-        if (null !== $this->seekable) {
+        if (null !== $this->seekable || $this->body instanceof File) {
             $this->body = $this->getBody();
             $this->seekable = null;
         }
diff --git a/src/Symfony/Component/Mime/Tests/EmailTest.php b/src/Symfony/Component/Mime/Tests/EmailTest.php
@@ -483,6 +483,7 @@ public function testSerialize()
         $name = __DIR__.'/Fixtures/mimetypes/test';
         $file = fopen($name, 'r');
         $e->addPart(new DataPart($file, 'test'));
+        $e->attachFromPath($name, 'same_test');
         $expected = clone $e;
         $n = unserialize(serialize($e));
         $this->assertEquals($expected->getHeaders(), $n->getHeaders());

Original file line number	Diff line number	Diff line change
`@@ -218,7 +218,7 @@ private function chooseEncoding(): string`
`218`	`218`	`public function __sleep(): array`
`219`	`219`	`{`
`220`	`220`	`// convert resources to strings for serialization`
`221`		`- if (null !== $this->seekable) {`
	`221`	`+ if (null !== $this->seekable \|\| $this->body instanceof File) {`
`222`	`222`	`$this->body = $this->getBody();`
`223`	`223`	`$this->seekable = null;`
`224`	`224`	`}`