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Direktori : /var/www/html/shaban/laviva/wp-content/plugins/smart-slider-3/nextend/library/
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Current File : /var/www/html/shaban/laviva/wp-content/plugins/smart-slider-3/nextend/library/nextend.php

<?php

class N2 {

    public static $version = '2.0.21';

    private static $api = 'https://secure.nextendweb.com/api/api.php';

    private static $api2 = 'https://api.nextendweb.com/v1/';

    public static function getApiUrl() {
        if (N2Settings::get('api-secondary', 0)) {
            return self::$api2;
        }

        return self::$api;
    }

    public static function api($posts, $returnUrl = false) {

        if (N2Settings::get('api-secondary', 0)) {
            $api = self::$api2;
        } else {
            $api = self::$api;
        }

        $posts_default = array(
            'platform' => N2Platform::getPlatform()
        );

        $posts = $posts + $posts_default;

        if ($returnUrl) {
            return $api . '?' . http_build_query($posts + $posts_default, '', '&');
        }

        if (!isset($data)) {
            if (function_exists('curl_init') && function_exists('curl_exec') && N2Settings::get('curl', 1)) {
                $ch = curl_init();

                curl_setopt($ch, CURLOPT_URL, $api);
                curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($posts, '', '&'));
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
                curl_setopt($ch, CURLOPT_TIMEOUT, 30);
                curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)');
                curl_setopt($ch, CURLOPT_REFERER, $_SERVER['REQUEST_URI']);
                $proxy = new WP_HTTP_Proxy();

                if ($proxy->is_enabled() && $proxy->send_through_proxy($api)) {


                    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 (N2Settings::get('curl-clean-proxy', 0)) {
                    curl_setopt($ch, CURLOPT_PROXY, '');
                }
                $data        = curl_exec($ch);
                $errorNumber = curl_errno($ch);
                if ($errorNumber == 60 || $errorNumber == 77) {
                    curl_setopt($ch, CURLOPT_CAINFO, N2LIBRARY . '/cacert.pem');
                    $data = curl_exec($ch);
                }
                $contentType     = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
                $error           = curl_error($ch);
                $curlErrorNumber = curl_errno($ch);
                curl_close($ch);

                if ($curlErrorNumber) {
                    $href = N2Base::getApplication('smartslider')->router->createUrl(array(
                        "help/index",
                        array('curl' => 1)
                    ));
                    N2Message::error(N2Html::tag('a', array(
                        'href' => $href . '#support-form'
                    ), n2_('Debug error')));

                    N2Message::error($curlErrorNumber . $error);

                    return array(
                        'status' => 'ERROR_HANDLED'
                    );
                }
            } else {
                $opts    = array(
                    'http' => array(
                        'method'  => 'POST',
                        'header'  => 'Content-type: application/x-www-form-urlencoded',
                        'content' => http_build_query($posts, '', '&')
                    )
                );
                $context = stream_context_create($opts);
                $data    = file_get_contents($api, false, $context);
                if ($data === false) {
                    N2Message::error(n2_('CURL disabled in your php.ini configuration. Please enable it!'));

                    return array(
                        'status' => 'ERROR_HANDLED'
                    );
                }
                $headers = self::parseHeaders($http_response_header);
                if ($headers['status'] != '200') {
                    N2Message::error(n2_('Unable to contact with the licensing server, please try again later!'));

                    return array(
                        'status' => 'ERROR_HANDLED'
                    );
                }
                if (isset($headers['content-type'])) {
                    $contentType = $headers['content-type'];
                }
            }
        }

        switch ($contentType) {
            case 'text/html; charset=UTF-8':
                //CloudFlare challenge
                preg_match('/"your_ip">.*?:[ ]*(.*?)<\/span>/', $data, $matches);
                if (count($matches)) {
                    $blockedIP = $matches[1];

                    N2Message::error(sprintf('Your ip address (%s) is blocked by our hosting provider.<br>Please try: Global Settings -> Framework settings -> Secondary server -> On, or contact us (support@nextendweb.com) with your ip to whitelist it.', $blockedIP));

                    return array(
                        'status' => 'ERROR_HANDLED'
                    );
                }

                N2Message::error(sprintf('Unexpected response from the API.<br>Please try: Global Settings -> Framework settings -> Secondary server -> On, contact us (support@nextendweb.com) with the following log:') . '<br><textarea style="width: 100%;height:200px;font-size:8px;">' . base64_encode($data) . '</textarea>');

                return array(
                    'status' => 'ERROR_HANDLED'
                );
                break;
            case 'application/json':
                return json_decode($data, true);
        }

        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;
        }

        return $output;
    }
}

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