From 55c39987471f11535f84c46ddb737de7a72fa345 Mon Sep 17 00:00:00 2001
From: ping-yee <611077101@mail.nknu.edu.tw>
Date: Mon, 18 Nov 2024 16:55:29 +0800
Subject: [PATCH 1/2] fix: extend the curl header handle.

---
 system/HTTP/CURLRequest.php           |  2 +-
 tests/system/HTTP/CURLRequestTest.php | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/system/HTTP/CURLRequest.php b/system/HTTP/CURLRequest.php
index 9da231c17716..90157e4e05d4 100644
--- a/system/HTTP/CURLRequest.php
+++ b/system/HTTP/CURLRequest.php
@@ -389,7 +389,7 @@ public function send(string $method, string $url)
             $output = substr($output, strpos($output, $breakString) + 4);
         }
 
-        if (str_starts_with($output, 'HTTP/1.1 200 Connection established')) {
+        if (preg_match('/HTTP\/\d\.\d 200 Connection established/i', $output)) {
             $output = substr($output, strpos($output, $breakString) + 4);
         }
 
diff --git a/tests/system/HTTP/CURLRequestTest.php b/tests/system/HTTP/CURLRequestTest.php
index f14198be2264..df44c427a665 100644
--- a/tests/system/HTTP/CURLRequestTest.php
+++ b/tests/system/HTTP/CURLRequestTest.php
@@ -831,6 +831,21 @@ public function testSendProxied(): void
         $this->assertSame('Hi there', $response->getBody());
     }
 
+    public function testSendProxiedWithHTTP10(): void
+    {
+        $request = $this->getRequest([
+            'base_uri' => 'http://www.foo.com/api/v1/',
+            'delay'    => 100,
+        ]);
+
+        $output = "HTTP/1.0 200 Connection established
+Proxy-Agent: Fortinet-Proxy/1.0\x0d\x0a\x0d\x0aHTTP/1.1 200 OK\x0d\x0a\x0d\x0aHi there";
+        $request->setOutput($output);
+
+        $response = $request->get('answer');
+        $this->assertSame('Hi there', $response->getBody());
+    }
+
     /**
      * See: https://github.com/codeigniter4/CodeIgniter4/issues/7394
      */

From 5e14d16616d216e0eac866f60c522753327fef90 Mon Sep 17 00:00:00 2001
From: ping-yee <611077101@mail.nknu.edu.tw>
Date: Thu, 28 Nov 2024 20:57:31 +0800
Subject: [PATCH 2/2] docs: add the change log.

---
 user_guide_src/source/changelogs/v4.5.6.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/user_guide_src/source/changelogs/v4.5.6.rst b/user_guide_src/source/changelogs/v4.5.6.rst
index 75d4d92212b6..1dbaf55f2482 100644
--- a/user_guide_src/source/changelogs/v4.5.6.rst
+++ b/user_guide_src/source/changelogs/v4.5.6.rst
@@ -40,6 +40,7 @@ Bugs Fixed
 - **Routing:** Fixed a TypeError in `str_replace()` when `Routing::$translateURIDashes` is set to `true` and a route is defined using a closure.
 
 - **Validation:** Fixed a bug where complex language strings were not properly handled.
+- **CURLRequest:** Added support for handling proxy responses using HTTP versions other than 1.1.
 
 See the repo's
 `CHANGELOG.md <https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md>`_