CurlClient.php

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<?php
 
namespace ILIAS\LTI\ToolProvider\Http;
 
class CurlClient implements ClientInterface
{
    public function send(HttpMessage $message): bool
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
        curl_setopt($ch, CURLOPT_URL, $message->getUrl());
        if (!empty($message->requestHeaders)) {
            curl_setopt($ch, CURLOPT_HTTPHEADER, $message->requestHeaders);
        } else {
            curl_setopt($ch, CURLOPT_HEADER, 0);
        }
        if ($message->getMethod() === 'POST') {
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $message->request);
        } elseif ($message->getMethod() !== 'GET') {
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $message->getMethod());
            if (!is_null($message->request)) {
                curl_setopt($ch, CURLOPT_POSTFIELDS, $message->request);
            }
        }
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLINFO_HEADER_OUT, true);
        curl_setopt($ch, CURLOPT_HEADER, true);
        $chResp = curl_exec($ch);
        $message->requestHeaders = trim(str_replace("\r\n", "\n", curl_getinfo($ch, CURLINFO_HEADER_OUT)));
        $chResp = str_replace("\r\n", "\n", $chResp);
        $chRespSplit = explode("\n\n", $chResp, 2);
        if ((count($chRespSplit) > 1) && (substr($chRespSplit[1], 0, 5) === 'HTTP/')) {
            $chRespSplit = explode("\n\n", $chRespSplit[1], 2);
        }
        $message->responseHeaders = trim($chRespSplit[0]);
        if (count($chRespSplit) > 1) {
            $message->response = $chRespSplit[1];
        } else {
            $message->response = '';
        }
        $message->status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $message->ok = ($message->status >= 100) && ($message->status < 400);
        if (!$message->ok) {
            $message->error = curl_error($ch);
        }
        curl_close($ch);
 
        return $message->ok;
    }
}