From e884a47edd86d5a0ae0592de180b2a895e91638e Mon Sep 17 00:00:00 2001
From: Mponos George <gmponos@gmail.com>
Date: Sun, 8 Dec 2019 21:30:23 +0200
Subject: [PATCH] Added idn function inside functions

---
 src/Client.php             | 33 +-------------------------------
 src/RedirectMiddleware.php |  5 +++--
 src/functions.php          | 39 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+), 34 deletions(-)

diff --git a/src/Client.php b/src/Client.php
index db4062f94..aa88eb18c 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -215,38 +215,7 @@ private function buildUri($uri, array $config)
             $uri = Psr7\UriResolver::resolve(Psr7\uri_for($config['base_uri']), $uri);
         }
 
-        if ($uri->getHost() && isset($config['idn_conversion']) && ($config['idn_conversion'] !== false)) {
-            $idnOptions = ($config['idn_conversion'] === true) ? IDNA_DEFAULT : $config['idn_conversion'];
-
-            $asciiHost = idn_to_ascii($uri->getHost(), $idnOptions, INTL_IDNA_VARIANT_UTS46, $info);
-            if ($asciiHost === false) {
-                $errorBitSet = isset($info['errors']) ? $info['errors'] : 0;
-
-                $errorConstants = array_filter(array_keys(get_defined_constants()), function ($name) {
-                    return substr($name, 0, 11) === 'IDNA_ERROR_';
-                });
-
-                $errors = [];
-                foreach ($errorConstants as $errorConstant) {
-                    if ($errorBitSet & constant($errorConstant)) {
-                        $errors[] = $errorConstant;
-                    }
-                }
-
-                $errorMessage = 'IDN conversion failed';
-                if ($errors) {
-                    $errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';
-                }
-
-                throw new InvalidArgumentException($errorMessage);
-            } else {
-                if ($uri->getHost() !== $asciiHost) {
-                    // Replace URI only if the ASCII version is different
-                    $uri = $uri->withHost($asciiHost);
-                }
-            }
-        }
-
+        $uri = _idn_uri_convert($uri, $config);
         return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
     }
 
diff --git a/src/RedirectMiddleware.php b/src/RedirectMiddleware.php
index 5a0edd572..9f5cf6f74 100644
--- a/src/RedirectMiddleware.php
+++ b/src/RedirectMiddleware.php
@@ -13,7 +13,7 @@
  * Request redirect middleware.
  *
  * Apply this middleware like other middleware using
- * {@see GuzzleHttp\Middleware::redirect()}.
+ * {@see \GuzzleHttp\Middleware::redirect()}.
  */
 class RedirectMiddleware
 {
@@ -190,7 +190,8 @@ public function modifyRequest(
             $modify['body'] = '';
         }
 
-        $modify['uri'] = $this->redirectUri($request, $response, $protocols);
+        $uri = $this->redirectUri($request, $response, $protocols);
+        $modify['uri'] = _idn_uri_convert($uri, $options);
         Psr7\rewind_body($request);
 
         // Add the Referer header if it is told to do so and only
diff --git a/src/functions.php b/src/functions.php
index aff69d557..003e2c5a3 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -1,10 +1,12 @@
 <?php
 namespace GuzzleHttp;
 
+use GuzzleHttp\Exception\InvalidArgumentException;
 use GuzzleHttp\Handler\CurlHandler;
 use GuzzleHttp\Handler\CurlMultiHandler;
 use GuzzleHttp\Handler\Proxy;
 use GuzzleHttp\Handler\StreamHandler;
+use Psr\Http\Message\UriInterface;
 
 /**
  * Expands a URI template
@@ -344,3 +346,40 @@ function _current_time()
 {
     return function_exists('hrtime') ? hrtime(true) / 1e9 : microtime(true);
 }
+
+
+function _idn_uri_convert(UriInterface $uri, array $options) {
+    if ($uri->getHost() && isset($options['idn_conversion']) && ($options['idn_conversion'] !== false)) {
+        $idnOptions = ($options['idn_conversion'] === true) ? IDNA_DEFAULT : $options['idn_conversion'];
+
+        $asciiHost = idn_to_ascii($uri->getHost(), $idnOptions, INTL_IDNA_VARIANT_UTS46, $info);
+        if ($asciiHost === false) {
+            $errorBitSet = isset($info['errors']) ? $info['errors'] : 0;
+
+            $errorConstants = array_filter(array_keys(get_defined_constants()), function ($name) {
+                return substr($name, 0, 11) === 'IDNA_ERROR_';
+            });
+
+            $errors = [];
+            foreach ($errorConstants as $errorConstant) {
+                if ($errorBitSet & constant($errorConstant)) {
+                    $errors[] = $errorConstant;
+                }
+            }
+
+            $errorMessage = 'IDN conversion failed';
+            if ($errors) {
+                $errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';
+            }
+
+            throw new InvalidArgumentException($errorMessage);
+        } else {
+            if ($uri->getHost() !== $asciiHost) {
+                // Replace URI only if the ASCII version is different
+                $uri = $uri->withHost($asciiHost);
+            }
+        }
+    }
+
+    return $uri;
+}
\ No newline at end of file