AbstractBinaryInput::getRawBinary()

simple complement to AbstractBinaryInput::getBase64()

as usual, naming is hard, some possible names:
getBinary
getRawBinary
getRawBinaryData
getString
getRawString
~

src/PageUtils/AbstractBinaryInput.php

@@ -54,6 +54,17 @@ public function getBase64(int $timeout = null)
         return $response->getResultData('data');
     }
 
+    /**
+     * Get raw binary data.
+     *
+     * @param int|null $timeout
+     * @return string
+     */
+    public function getRawBinary(int $timeout = null): string
+    {
+        return base64_decode($this->getBase64($timeout), true);
+    }
+
     /**
      * Save data to the given file.
      *
@@ -89,7 +100,7 @@ public function saveToFile(string $path, int $timeout = 5000): void
             }
         }
 
-        $file = \fopen($path, 'w');
+        $file = \fopen($path, 'wb');
         \stream_filter_append($file, 'convert.base64-decode');
         \fwrite($file, $response->getResultData('data'));
         \fclose($file);