1 files changed, 56 insertions, 0 deletions
diff --git a/vendor/league/uri-interfaces/FeatureDetection.php b/vendor/league/uri-interfaces/FeatureDetection.php
new file mode 100644
index 000000000..b3e9b09cd
--- /dev/null
+++ b/vendor/league/uri-interfaces/FeatureDetection.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * League.Uri (https://uri.thephpleague.com)
+ *
+ * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace League\Uri;
+
+use finfo;
+use League\Uri\Exceptions\MissingFeature;
+use League\Uri\IPv4\Calculator;
+
+use const PHP_INT_SIZE;
+
+/**
+ * Allow detecting features needed to make the packages work.
+ */
+final class FeatureDetection
+{
+    public static function supportsFileDetection(): void
+    {
+        static $isSupported = null;
+        $isSupported = $isSupported ?? class_exists(finfo::class);
+
+        if (!$isSupported) {
+            throw new MissingFeature('Support for file type detection requires the `fileinfo` extension.');
+        }
+    }
+
+    public static function supportsIdn(): void
+    {
+        static $isSupported = null;
+        $isSupported = $isSupported ?? (function_exists('\idn_to_ascii') && defined('\INTL_IDNA_VARIANT_UTS46'));
+
+        if (!$isSupported) {
+            throw new MissingFeature('Support for IDN host requires the `intl` extension for best performance or run "composer require symfony/polyfill-intl-idn" to install a polyfill.');
+        }
+    }
+
+    public static function supportsIPv4Conversion(): void
+    {
+        static $isSupported = null;
+        $isSupported = $isSupported ?? (extension_loaded('gmp') || extension_loaded('bcmath') || (4 < PHP_INT_SIZE));
+
+        if (!$isSupported) {
+            throw new MissingFeature('A '.Calculator::class.' implementation could not be automatically loaded. To perform IPv4 conversion use a x.64 PHP build or install one of the following extension GMP or BCMath. You can also ship your own implmentation.');
+        }
+    }
+}