diff --git a/src/Symfony/Component/HttpFoundation/CHANGELOG.md b/src/Symfony/Component/HttpFoundation/CHANGELOG.md
index c962d06b9b05d..659345c20cfe6 100644
--- a/src/Symfony/Component/HttpFoundation/CHANGELOG.md
+++ b/src/Symfony/Component/HttpFoundation/CHANGELOG.md
@@ -12,6 +12,7 @@ CHANGELOG
`__construct()` instead)
* added `Request::preferSafeContent()` and `Response::setContentSafe()` to handle "safe" HTTP preference
according to [RFC 8674](https://tools.ietf.org/html/rfc8674)
+ * made the Mime component an optional dependency
5.0.0
-----
diff --git a/src/Symfony/Component/HttpFoundation/File/File.php b/src/Symfony/Component/HttpFoundation/File/File.php
index d79c27f68ef79..45f344e375315 100644
--- a/src/Symfony/Component/HttpFoundation/File/File.php
+++ b/src/Symfony/Component/HttpFoundation/File/File.php
@@ -54,6 +54,10 @@ public function __construct(string $path, bool $checkPath = true)
*/
public function guessExtension()
{
+ if (!class_exists(MimeTypes::class)) {
+ throw new \LogicException('You cannot guess the extension as the Mime component is not installed. Try running "composer require symfony/mime".');
+ }
+
return MimeTypes::getDefault()->getExtensions($this->getMimeType())[0] ?? null;
}
diff --git a/src/Symfony/Component/HttpFoundation/File/UploadedFile.php b/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
index 3a258e29c6dc3..90ee4b3dafb8c 100644
--- a/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
+++ b/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
@@ -133,6 +133,10 @@ public function getClientMimeType()
*/
public function guessClientExtension()
{
+ if (!class_exists(MimeTypes::class)) {
+ throw new \LogicException('You cannot guess the extension as the Mime component is not installed. Try running "composer require symfony/mime".');
+ }
+
return MimeTypes::getDefault()->getExtensions($this->getClientMimeType())[0] ?? null;
}
diff --git a/src/Symfony/Component/HttpFoundation/composer.json b/src/Symfony/Component/HttpFoundation/composer.json
index 224a74a9ec4a0..61a4bb554431f 100644
--- a/src/Symfony/Component/HttpFoundation/composer.json
+++ b/src/Symfony/Component/HttpFoundation/composer.json
@@ -17,13 +17,16 @@
],
"require": {
"php": "^7.2.5",
- "symfony/mime": "^4.4|^5.0",
"symfony/polyfill-mbstring": "~1.1"
},
"require-dev": {
"predis/predis": "~1.0",
+ "symfony/mime": "^4.4|^5.0",
"symfony/expression-language": "^4.4|^5.0"
},
+ "suggest" : {
+ "symfony/mime": "To use the file extension guesser"
+ },
"autoload": {
"psr-4": { "Symfony\\Component\\HttpFoundation\\": "" },
"exclude-from-classmap": [
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