Merge branch '4.4' into 5.4

* 4.4:
  Improve DE translations for Form/Validator
  [WebProfilerBundle] Fix dark theme selected line highlight color & reuse css vars
  [Mime] Check that the path is a file in the DataPart::fromPath
  [Cache] do not pass null to strlen()

Author: derrabus

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/profiler.css.twig

@@ -51,6 +51,7 @@
     --highlight-default: #222222;
     --highlight-keyword: #a71d5d;
     --highlight-string: #183691;
+    --highlight-selected-line: rgba(255, 255, 153, 0.5);
     --base-0: #fff;
     --base-1: #f5f5f5;
     --base-2: #e0e0e0;
@@ -104,6 +105,7 @@
     --highlight-default: var(--base-6);
     --highlight-keyword: #ff413c;
     --highlight-string: #70a6fd;
+    --highlight-selected-line: rgba(14, 14, 14, 0.5);
     --base-0: #2e3136;
     --base-1: #444;
     --base-2: #666;
@@ -1296,15 +1298,15 @@ tr.log-status-silenced {
     padding: 0;
 }
 #collector-content .sf-validator .trace li.selected {
-    background: rgba(255, 255, 153, 0.5);
+    background: var(--highlight-selected-line);
 }
 
 {# Messenger panel
    ========================================================================= #}
 
 #collector-content .message-bus .trace {
-    border: 1px solid #DDD;
-    background: #FFF;
+    border: var(--border);
+    background: var(--base-0);
     padding: 10px;
     margin: 0.5em 0;
     overflow: auto;
@@ -1317,7 +1319,7 @@ tr.log-status-silenced {
     padding: 0;
 }
 #collector-content .message-bus .trace li.selected {
-    background: rgba(255, 255, 153, 0.5);
+    background: var(--highlight-selected-line);
 }
 
 {# Dump panel

src/Symfony/Component/Cache/Traits/RedisTrait.php

@@ -387,7 +387,7 @@ protected function doClear(string $namespace)
     {
         if ($this->redis instanceof \Predis\ClientInterface) {
             $prefix = $this->redis->getOptions()->prefix ? $this->redis->getOptions()->prefix->getPrefix() : '';
-            $prefixLen = \strlen($prefix);
+            $prefixLen = \strlen($prefix ?? '');
         }
 
         $cleared = true;

src/Symfony/Component/Form/Resources/translations/validators.de.xlf

@@ -12,7 +12,7 @@
             </trans-unit>
             <trans-unit id="30">
                 <source>The CSRF token is invalid. Please try to resubmit the form.</source>
-                <target>Der CSRF-Token ist ungültig. Versuchen Sie bitte das Formular erneut zu senden.</target>
+                <target>Der CSRF-Token ist ungültig. Versuchen Sie bitte, das Formular erneut zu senden.</target>
             </trans-unit>
             <trans-unit id="99">
                 <source>This value is not a valid HTML5 color.</source>

src/Symfony/Component/Mime/Part/DataPart.php

@@ -61,7 +61,7 @@ public static function fromPath(string $path, string $name = null, string $conte
             $contentType = self::$mimeTypes->getMimeTypes($ext)[0] ?? 'application/octet-stream';
         }
 
-        if (false === is_readable($path)) {
+        if (!is_file($path) || !is_readable($path)) {
             throw new InvalidArgumentException(sprintf('Path "%s" is not readable.', $path));
         }
 

src/Symfony/Component/Mime/Tests/Part/DataPartTest.php

@@ -12,6 +12,7 @@
 namespace Symfony\Component\Mime\Tests\Part;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Mime\Exception\InvalidArgumentException;
 use Symfony\Component\Mime\Header\Headers;
 use Symfony\Component\Mime\Header\IdentificationHeader;
 use Symfony\Component\Mime\Header\ParameterizedHeader;
@@ -127,6 +128,12 @@ public function testFromPathWithMeta()
         ), $p->getPreparedHeaders());
     }
 
+    public function testFromPathWithNotAFile()
+    {
+        $this->expectException(InvalidArgumentException::class);
+        DataPart::fromPath(__DIR__.'/../Fixtures/mimetypes/');
+    }
+
     public function testHasContentId()
     {
         $p = new DataPart('content');

src/Symfony/Component/Validator/Resources/translations/validators.de.xlf

@@ -220,7 +220,7 @@
             </trans-unit>
             <trans-unit id="58">
                 <source>Unsupported card type or invalid card number.</source>
-                <target>Nicht unterstützer Kartentyp oder ungültige Kartennummer.</target>
+                <target>Nicht unterstützter Kartentyp oder ungültige Kartennummer.</target>
             </trans-unit>
             <trans-unit id="59">
                 <source>This is not a valid International Bank Account Number (IBAN).</source>
@@ -312,7 +312,7 @@
             </trans-unit>
             <trans-unit id="81">
                 <source>This is not a valid Business Identifier Code (BIC).</source>
-                <target>Dieser Wert ist kein gültiger BIC.</target>
+                <target>Dieser Wert ist keine gültige internationale Bankleitzahl (BIC).</target>
             </trans-unit>
             <trans-unit id="82">
                 <source>Error</source>