bug cURL - Parse header and Body

[demortx]

CodeIgniter4/system/HTTP/CURLRequest.php

Lines 451 to 470 in a18fdea

	$continueStr = "HTTP/1.1 100 Continue\x0d\x0a\x0d\x0a";
	if (strpos($output, $continueStr) === 0)
	{
	$output = substr($output, strlen($continueStr));
	}
	// Split out our headers and body
	$break = strpos($output, "\r\n\r\n");
	if ($break !== false)
	{
	// Our headers
	$headers = explode("\n", substr($output, 0, $break));
	$this->setResponseHeaders($headers);
	// Our body
	$body = substr($output, $break + 4);
	$this->response->setBody($body);
	}

FIX

$response_header_array = explode("\r\n\r\n", $output);
        $response_header  = '';
        for ($i = count($response_header_array) - 1; $i >= 0; $i--) {
            if (stripos($response_header_array[$i], 'HTTP/') === 0) {
                $response_header = $response_header_array[$i];
                break;
            }
        }
        if (!empty($response_header)){
            $headers = explode("\n", $response_header);
            $this->setResponseHeaders($headers);
            $this->response->setBody(end($response_header_array));
        }

Custom header parsing error
**BAD HEADER**

HTTP/1.1 100 Continue ---- **IS NOT** "HTTP/1.1 100 Continue\x0d\x0a\x0d\x0a" 
Server: ddos-guard
Set-Cookie: __ddg1=z177j4mLtqzC07v0zviU; Domain=.site.ru; HttpOnly; Path=/; Expires=Wed, 07-Jul-2021 15:13:14 GMT
				----- **FIRST** \r\n\r\n    Because of this, the headings fall in response to the body
HTTP/1.1 200 OK
Server: ddos-guard
Connection: keep-alive
Keep-Alive: timeout=60
Set-Cookie: __ddg1=z177j4mLtqzC07v0zviU; Domain=.site.ru; HttpOnly; Path=/; Expires=Wed, 07-Jul-2021 15:13:14 GMT
Date: Tue, 07 Jul 2020 15:13:14 GMT
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Set-Cookie: PHPSESSID=80pd3hlg38mvjnelpvokp9lad0; path=/
Content-Type: application/xml; charset=utf-8
Transfer-Encoding: chunked
                                     ------- **TWO** \r\n\r\n     
<?xml version="1.0"?> <response><title>Update success! config</title><text>Successfully updated the project settings!</text><status>success</status></response> 

[demortx]

Your fix works well, tested in live mode