HttpClient.php
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<?php
namespace Nextend\Framework\Misc;
use Nextend\Framework\Notification\Notification;
use Nextend\Framework\Settings;
use Nextend\Framework\View\Html;
use Nextend\SmartSlider3\Application\ApplicationSmartSlider3;
use WP_HTTP_Proxy;
class HttpClient {
public static function getCacertPath() {
return dirname(__FILE__) . '/cacert.pem';
}
public static function get($url, $options = array()) {
$options = array_merge(array(
'referer' => $_SERVER['REQUEST_URI']
), $options);
if (function_exists('curl_init') && function_exists('curl_exec') && Settings::get('curl', 1)) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36');
$proxy = new WP_HTTP_Proxy();
if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
curl_setopt($ch, CURLOPT_PROXY, $proxy->host());
curl_setopt($ch, CURLOPT_PROXYPORT, $proxy->port());
if ($proxy->use_authentication()) {
curl_setopt($ch, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxy->authentication());
}
}
if (!empty($options['referer'])) {
curl_setopt($ch, CURLOPT_REFERER, $options['referer']);
}
if (Settings::get('curl-clean-proxy', 0)) {
curl_setopt($ch, CURLOPT_PROXY, '');
}
$data = curl_exec($ch);
if (curl_errno($ch) == 60) {
curl_setopt($ch, CURLOPT_CAINFO, self::getCacertPath());
$data = curl_exec($ch);
}
$error = curl_error($ch);
$curlErrorNumber = curl_errno($ch);
curl_close($ch);
if ($curlErrorNumber) {
$href = ApplicationSmartSlider3::getInstance()
->getApplicationTypeAdmin()
->getUrlHelpCurl();
if (!isset($options['error']) || $options['error'] !== false) {
Notification::error(Html::tag('a', array(
'href' => $href . '#support-form'
), n2_('Debug error')));
Notification::error($curlErrorNumber . $error);
}
return false;
}
return $data;
} else {
if (!ini_get('allow_url_fopen')) {
Notification::error(sprintf(n2_('The %1$s is not turned on in your server, which is necessary to read rss feeds. You should contact your server host, and ask them to enable it!'), '<a href="http://php.net/manual/en/filesystem.configuration.php#ini.allow-url-fopen" target="_blank">allow_url_fopen</a>'));
return false;
}
$opts = array(
'http' => array(
'method' => 'GET'
)
);
$context = stream_context_create($opts);
$data = file_get_contents($url, false, $context);
if ($data === false) {
Notification::error(n2_('CURL disabled in your php.ini configuration. Please enable it!'));
return false;
}
$headers = self::parseHeaders($http_response_header);
if ($headers['status'] != '200') {
Notification::error(n2_('Unable to contact with the licensing server, please try again later!'));
return false;
}
return $data;
}
}
private static function parseHeaders(array $headers, $header = null) {
$output = array();
if ('HTTP' === substr($headers[0], 0, 4)) {
list(, $output['status'], $output['status_text']) = explode(' ', $headers[0]);
unset($headers[0]);
}
foreach ($headers as $v) {
$h = preg_split('/:\s*/', $v);
if (count($h) >= 2) {
$output[strtolower($h[0])] = $h[1];
}
}
if (null !== $header) {
if (isset($output[strtolower($header)])) {
return $output[strtolower($header)];
}
return null;
}
return $output;
}
}