PHP WP_HTTP_Proxy::send_through_proxy方法代码示例

 private function curl($id, $url, $params)
 {
     if (self::$settings->getGlobalOption('http_method') == 'post') {
         $c = curl_init($url);
         curl_setopt($c, CURLOPT_POST, 1);
         curl_setopt($c, CURLOPT_POSTFIELDS, $params . '&token_auth=' . self::$settings->getGlobalOption('piwik_token'));
     } else {
         $c = curl_init($url . '?' . $params . '&token_auth=' . self::$settings->getGlobalOption('piwik_token'));
     }
     curl_setopt($c, CURLOPT_SSL_VERIFYPEER, !self::$settings->getGlobalOption('disable_ssl_verify'));
     curl_setopt($c, CURLOPT_USERAGENT, self::$settings->getGlobalOption('piwik_useragent') == 'php' ? ini_get('user_agent') : self::$settings->getGlobalOption('piwik_useragent_string'));
     curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($c, CURLOPT_HEADER, $GLOBALS['wp-piwik_debug']);
     curl_setopt($c, CURLOPT_TIMEOUT, self::$settings->getGlobalOption('connection_timeout'));
     $httpProxyClass = new \WP_HTTP_Proxy();
     if ($httpProxyClass->is_enabled() && $httpProxyClass->send_through_proxy($strURL)) {
         curl_setopt($c, CURLOPT_PROXY, $httpProxyClass->host());
         curl_setopt($c, CURLOPT_PROXYPORT, $httpProxyClass->port());
         if ($httpProxyClass->use_authentication()) {
             curl_setopt($c, CURLOPT_PROXYUSERPWD, $httpProxyClass->username() . ':' . $httpProxyClass->password());
         }
     }
     $result = curl_exec($c);
     if ($GLOBALS['wp-piwik_debug']) {
         $header_size = curl_getinfo($c, CURLINFO_HEADER_SIZE);
         $header = substr($result, 0, $header_size);
         $body = substr($result, $header_size);
         $result = $this->unserialize($body);
         self::$debug[$id] = array($header, $url . '?' . $params . '&token_auth=...');
     } else {
         $result = $this->unserialize($result);
     }
     curl_close($c);
     return $result;
 }

 /**
  * Create cURL handle for a HTTP request.
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url The request URL.
  * @param string|array $args Optional. Override the defaults.
  * @return cURL handle
  */
 public function createHandle($url, $args = array())
 {
     $defaults = array('timeout' => 5, 'headers' => array(), 'body' => null);
     $r = wp_parse_args($args, $defaults);
     $handle = curl_init();
     // cURL offers really easy proxy support.
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
         curl_setopt($handle, CURLOPT_PROXY, $proxy->host());
         curl_setopt($handle, CURLOPT_PROXYPORT, $proxy->port());
         if ($proxy->use_authentication()) {
             curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
             curl_setopt($handle, CURLOPT_PROXYUSERPWD, $proxy->authentication());
         }
     }
     /*
      * CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers. Have to use ceil since.
      * a value of 0 will allow an unlimited timeout.
      */
     $timeout = (int) ceil($r['timeout']);
     curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_TIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_URL, $url);
     curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($handle, CURLOPT_SSL_VERIFYHOST, 2);
     curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, true);
     /*
      * The option doesn't work with safe mode or when open_basedir is set, and there's
      * a bug #17490 with redirected POST requests, so handle redirections outside Curl.
      */
     curl_setopt($handle, CURLOPT_FOLLOWLOCATION, false);
     if (defined('CURLOPT_PROTOCOLS')) {
         // PHP 5.2.10 / cURL 7.19.4
         curl_setopt($handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
     }
     curl_setopt($handle, CURLOPT_POST, true);
     curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
     curl_setopt($handle, CURLOPT_HEADER, false);
     // cURL expects full header strings in each element.
     $headers = array();
     foreach ($r['headers'] as $name => $value) {
         $headers[] = "{$name}: {$value}";
     }
     curl_setopt($handle, CURLOPT_HTTPHEADER, $headers);
     /**
      * Fires before the cURL request is executed.
      *
      * Cookies are not currently handled by the HTTP API. This action allows
      * plugins to handle cookies themselves.
      *
      * @since 2.8.0
      *
      * @param resource &$handle The cURL handle returned by curl_init().
      * @param array    $r       The HTTP request arguments.
      * @param string   $url     The request URL.
      */
     do_action_ref_array('http_api_curl', array(&$handle, $r, $url));
     return $handle;
 }

 /**
  * Set proxy information
  *
  * @param string $host Proxy hostname and port (localhost:1234)
  * @param string $user Proxy username
  * @param string $pass Proxy password
  * @param constant $type CURL proxy type
  * @return void
  */
 public function setProxy($host, $user = null, $pass = null, $type = CURLPROXY_SOCKS5, $port = null)
 {
     $this->proxy = array('host' => $host, 'type' => $type, 'user' => $user, 'pass' => $pass, 'port' => $port);
     if (!$host) {
         return;
     }
     $wp_proxy = new WP_HTTP_Proxy();
     if ($wp_proxy->send_through_proxy('https://s3.amazonaws.com')) {
         global $updraftplus;
         $updraftplus->log("setProxy: host={$host}, user={$user}, port={$port}");
         // N.B. Currently (02-Feb-15), only support for HTTP proxies has ever been requested for S3 in UpdraftPlus
         $proxy_url = 'http://';
         if ($user) {
             $proxy_url .= $user;
             if ($pass) {
                 $proxy_url .= ":{$pass}";
             }
             $proxy_url .= "@";
         }
         $proxy_url .= $host;
         if ($port) {
             $proxy_url .= ":{$port}";
         }
         $this->client->setDefaultOption('proxy', $proxy_url);
     }
 }

//.........这里部分代码省略.........
     }
     // WP allows passing in headers as a string, weirdly.
     if (!is_array($r['headers'])) {
         $processedHeaders = WP_Http::processHeaders($r['headers']);
         $r['headers'] = $processedHeaders['headers'];
     }
     // Setup arguments
     $headers = $r['headers'];
     $data = $r['body'];
     $type = $r['method'];
     $options = array('timeout' => $r['timeout'], 'useragent' => $r['user-agent'], 'blocking' => $r['blocking'], 'hooks' => new WP_HTTP_Requests_Hooks($url, $r));
     // Ensure redirects follow browser behaviour.
     $options['hooks']->register('requests.before_redirect', array(get_class(), 'browser_redirect_compatibility'));
     if ($r['stream']) {
         $options['filename'] = $r['filename'];
     }
     if (empty($r['redirection'])) {
         $options['follow_redirects'] = false;
     } else {
         $options['redirects'] = $r['redirection'];
     }
     // Use byte limit, if we can
     if (isset($r['limit_response_size'])) {
         $options['max_bytes'] = $r['limit_response_size'];
     }
     // If we've got cookies, use and convert them to Requests_Cookie.
     if (!empty($r['cookies'])) {
         $options['cookies'] = WP_Http::normalize_cookies($r['cookies']);
     }
     // SSL certificate handling
     if (!$r['sslverify']) {
         $options['verify'] = false;
         $options['verifyname'] = false;
     } else {
         $options['verify'] = $r['sslcertificates'];
     }
     // All non-GET/HEAD requests should put the arguments in the form body.
     if ('HEAD' !== $type && 'GET' !== $type) {
         $options['data_format'] = 'body';
     }
     /**
      * Filters whether SSL should be verified for non-local requests.
      *
      * @since 2.8.0
      *
      * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
      */
     $options['verify'] = apply_filters('https_ssl_verify', $options['verify']);
     // Check for proxies.
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         $options['proxy'] = new Requests_Proxy_HTTP($proxy->host() . ':' . $proxy->port());
         if ($proxy->use_authentication()) {
             $options['proxy']->use_authentication = true;
             $options['proxy']->user = $proxy->username();
             $options['proxy']->pass = $proxy->password();
         }
     }
     // Avoid issues where mbstring.func_overload is enabled
     mbstring_binary_safe_encoding();
     try {
         $requests_response = Requests::request($url, $headers, $data, $type, $options);
         // Convert the response into an array
         $http_response = new WP_HTTP_Requests_Response($requests_response, $r['filename']);
         $response = $http_response->to_array();
         // Add the original object to the array.
         $response['http_response'] = $http_response;
     } catch (Requests_Exception $e) {
         $response = new WP_Error('http_request_failed', $e->getMessage());
     }
     reset_mbstring_encoding();
     /**
      * Fires after an HTTP API response is received and before the response is returned.
      *
      * @since 2.8.0
      *
      * @param array|WP_Error $response HTTP response or WP_Error object.
      * @param string         $context  Context under which the hook is fired.
      * @param string         $class    HTTP transport used.
      * @param array          $args     HTTP request arguments.
      * @param string         $url      The request URL.
      */
     do_action('http_api_debug', $response, 'response', 'Requests', $r, $url);
     if (is_wp_error($response)) {
         return $response;
     }
     if (!$r['blocking']) {
         return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array(), 'http_response' => null);
     }
     /**
      * Filters the HTTP API response immediately before the response is returned.
      *
      * @since 2.9.0
      *
      * @param array  $response HTTP response.
      * @param array  $r        HTTP request arguments.
      * @param string $url      The request URL.
      */
     return apply_filters('http_response', $response, $r, $url);
 }

 /**
  * Send a HTTP request to a URI using cURL extension.
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url The request URL.
  * @param string|array $args Optional. Override the defaults.
  * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
  */
 public function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
     $r = wp_parse_args($args, $defaults);
     if (isset($r['headers']['User-Agent'])) {
         $r['user-agent'] = $r['headers']['User-Agent'];
         unset($r['headers']['User-Agent']);
     } elseif (isset($r['headers']['user-agent'])) {
         $r['user-agent'] = $r['headers']['user-agent'];
         unset($r['headers']['user-agent']);
     }
     // Construct Cookie: header if any cookies are set.
     WP_Http::buildCookieHeader($r);
     $handle = curl_init();
     // cURL offers really easy proxy support.
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
         curl_setopt($handle, CURLOPT_PROXY, $proxy->host());
         curl_setopt($handle, CURLOPT_PROXYPORT, $proxy->port());
         if ($proxy->use_authentication()) {
             curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
             curl_setopt($handle, CURLOPT_PROXYUSERPWD, $proxy->authentication());
         }
     }
     $is_local = isset($r['local']) && $r['local'];
     $ssl_verify = isset($r['sslverify']) && $r['sslverify'];
     if ($is_local) {
         /** This filter is documented in wp-includes/class-http.php */
         $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
     } elseif (!$is_local) {
         /** This filter is documented in wp-includes/class-http.php */
         $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
     }
     /*
      * CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers. Have to use ceil since.
      * a value of 0 will allow an unlimited timeout.
      */
     $timeout = (int) ceil($r['timeout']);
     curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_TIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_URL, $url);
     curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify === true ? 2 : false);
     curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify);
     curl_setopt($handle, CURLOPT_CAINFO, $r['sslcertificates']);
     curl_setopt($handle, CURLOPT_USERAGENT, $r['user-agent']);
     /*
      * The option doesn't work with safe mode or when open_basedir is set, and there's
      * a bug #17490 with redirected POST requests, so handle redirections outside Curl.
      */
     curl_setopt($handle, CURLOPT_FOLLOWLOCATION, false);
     if (defined('CURLOPT_PROTOCOLS')) {
         // PHP 5.2.10 / cURL 7.19.4
         curl_setopt($handle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
     }
     switch ($r['method']) {
         case 'HEAD':
             curl_setopt($handle, CURLOPT_NOBODY, true);
             break;
         case 'POST':
             curl_setopt($handle, CURLOPT_POST, true);
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
         case 'PUT':
             curl_setopt($handle, CURLOPT_CUSTOMREQUEST, 'PUT');
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
         default:
             curl_setopt($handle, CURLOPT_CUSTOMREQUEST, $r['method']);
             if (!is_null($r['body'])) {
                 curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             }
             break;
     }
     if (true === $r['blocking']) {
         curl_setopt($handle, CURLOPT_HEADERFUNCTION, array($this, 'stream_headers'));
         curl_setopt($handle, CURLOPT_WRITEFUNCTION, array($this, 'stream_body'));
     }
     curl_setopt($handle, CURLOPT_HEADER, false);
     if (isset($r['limit_response_size'])) {
         $this->max_body_length = intval($r['limit_response_size']);
     } else {
         $this->max_body_length = false;
     }
     // If streaming to a file open a file handle, and setup our curl streaming handler.
     if ($r['stream']) {
         if (!WP_DEBUG) {
             $this->stream_handle = @fopen($r['filename'], 'w+');
         } else {
//.........这里部分代码省略.........

 /**
  * Send a HTTP request to a URI using PHP Streams.
  *
  * @see WP_Http::request For default options descriptions.
  *
  * @since 2.7.0
  * @since 3.7.0 Combined with the fsockopen transport and switched to stream_socket_client().
  *
  * @access public
  * @param string $url The request URL.
  * @param string|array $args Optional. Override the defaults.
  * @return array|WP_Error Array containing 'headers', 'body', 'response', 'cookies', 'filename'. A WP_Error instance upon error
  */
 public function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
     $r = wp_parse_args($args, $defaults);
     if (isset($r['headers']['User-Agent'])) {
         $r['user-agent'] = $r['headers']['User-Agent'];
         unset($r['headers']['User-Agent']);
     } elseif (isset($r['headers']['user-agent'])) {
         $r['user-agent'] = $r['headers']['user-agent'];
         unset($r['headers']['user-agent']);
     }
     // Construct Cookie: header if any cookies are set.
     WP_Http::buildCookieHeader($r);
     $arrURL = parse_url($url);
     $connect_host = $arrURL['host'];
     $secure_transport = $arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https';
     if (!isset($arrURL['port'])) {
         if ($arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https') {
             $arrURL['port'] = 443;
             $secure_transport = true;
         } else {
             $arrURL['port'] = 80;
         }
     }
     // Always pass a Path, defaulting to the root in cases such as http://example.com
     if (!isset($arrURL['path'])) {
         $arrURL['path'] = '/';
     }
     if (isset($r['headers']['Host']) || isset($r['headers']['host'])) {
         if (isset($r['headers']['Host'])) {
             $arrURL['host'] = $r['headers']['Host'];
         } else {
             $arrURL['host'] = $r['headers']['host'];
         }
         unset($r['headers']['Host'], $r['headers']['host']);
     }
     /*
      * Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect
      * to ::1, which fails when the server is not set up for it. For compatibility, always
      * connect to the IPv4 address.
      */
     if ('localhost' == strtolower($connect_host)) {
         $connect_host = '127.0.0.1';
     }
     $connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host;
     $is_local = isset($r['local']) && $r['local'];
     $ssl_verify = isset($r['sslverify']) && $r['sslverify'];
     if ($is_local) {
         /**
          * Filter whether SSL should be verified for local requests.
          *
          * @since 2.8.0
          *
          * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
          */
         $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
     } elseif (!$is_local) {
         /**
          * Filter whether SSL should be verified for non-local requests.
          *
          * @since 2.8.0
          *
          * @param bool $ssl_verify Whether to verify the SSL connection. Default true.
          */
         $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
     }
     $proxy = new WP_HTTP_Proxy();
     $context = stream_context_create(array('ssl' => array('verify_peer' => $ssl_verify, 'capture_peer_cert' => $ssl_verify, 'SNI_enabled' => true, 'cafile' => $r['sslcertificates'], 'allow_self_signed' => !$ssl_verify)));
     $timeout = (int) floor($r['timeout']);
     $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000;
     $connect_timeout = max($timeout, 1);
     // Store error number.
     $connection_error = null;
     // Store error string.
     $connection_error_str = null;
     if (!WP_DEBUG) {
         // In the event that the SSL connection fails, silence the many PHP Warnings.
         if ($secure_transport) {
             $error_reporting = error_reporting(0);
         }
         if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
             $handle = @stream_socket_client('tcp://' . $proxy->host() . ':' . $proxy->port(), $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context);
         } else {
             $handle = @stream_socket_client($connect_host . ':' . $arrURL['port'], $connection_error, $connection_error_str, $connect_timeout, STREAM_CLIENT_CONNECT, $context);
         }
         if ($secure_transport) {
             error_reporting($error_reporting);
//.........这里部分代码省略.........

 /**
  * Send a HTTP request to a URI using cURL extension.
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url
  * @param str|array $args Optional. Override the defaults.
  * @return array 'headers', 'body', 'cookies' and 'response' keys.
  */
 function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
     $r = wp_parse_args($args, $defaults);
     if (isset($r['headers']['User-Agent'])) {
         $r['user-agent'] = $r['headers']['User-Agent'];
         unset($r['headers']['User-Agent']);
     } else {
         if (isset($r['headers']['user-agent'])) {
             $r['user-agent'] = $r['headers']['user-agent'];
             unset($r['headers']['user-agent']);
         }
     }
     // Construct Cookie: header if any cookies are set.
     WP_Http::buildCookieHeader($r);
     // cURL extension will sometimes fail when the timeout is less than 1 as it may round down
     // to 0, which gives it unlimited timeout.
     if ($r['timeout'] > 0 && $r['timeout'] < 1) {
         $r['timeout'] = 1;
     }
     $handle = curl_init();
     // cURL offers really easy proxy support.
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         $isPHP5 = version_compare(PHP_VERSION, '5.0.0', '>=');
         if ($isPHP5) {
             curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
             curl_setopt($handle, CURLOPT_PROXY, $proxy->host());
             curl_setopt($handle, CURLOPT_PROXYPORT, $proxy->port());
         } else {
             curl_setopt($handle, CURLOPT_PROXY, $proxy->host() . ':' . $proxy->port());
         }
         if ($proxy->use_authentication()) {
             if ($isPHP5) {
                 curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_BASIC);
             }
             curl_setopt($handle, CURLOPT_PROXYUSERPWD, $proxy->authentication());
         }
     }
     $is_local = isset($args['local']) && $args['local'];
     $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
     if ($is_local) {
         $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
     } elseif (!$is_local) {
         $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
     }
     curl_setopt($handle, CURLOPT_URL, $url);
     curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify);
     curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify);
     curl_setopt($handle, CURLOPT_USERAGENT, $r['user-agent']);
     curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, $r['timeout']);
     curl_setopt($handle, CURLOPT_TIMEOUT, $r['timeout']);
     curl_setopt($handle, CURLOPT_MAXREDIRS, $r['redirection']);
     switch ($r['method']) {
         case 'HEAD':
             curl_setopt($handle, CURLOPT_NOBODY, true);
             break;
         case 'POST':
             curl_setopt($handle, CURLOPT_POST, true);
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
         case 'PUT':
             curl_setopt($handle, CURLOPT_CUSTOMREQUEST, 'PUT');
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
     }
     if (true === $r['blocking']) {
         curl_setopt($handle, CURLOPT_HEADER, true);
     } else {
         curl_setopt($handle, CURLOPT_HEADER, false);
     }
     // The option doesn't work with safe mode or when open_basedir is set.
     if (!ini_get('safe_mode') && !ini_get('open_basedir')) {
         curl_setopt($handle, CURLOPT_FOLLOWLOCATION, true);
     }
     if (!empty($r['headers'])) {
         // cURL expects full header strings in each element
         $headers = array();
         foreach ($r['headers'] as $name => $value) {
             $headers[] = "{$name}: {$value}";
         }
         curl_setopt($handle, CURLOPT_HTTPHEADER, $headers);
     }
     if ($r['httpversion'] == '1.0') {
         curl_setopt($handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
     } else {
         curl_setopt($handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
     }
     // Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it
//.........这里部分代码省略.........

 public function http_post($post_options)
 {
     @(include ABSPATH . WPINC . '/version.php');
     $http_credentials = $this->http_credentials;
     if (is_a($this->http_transport, 'GuzzleHttp\\Client')) {
         // https://guzzle.readthedocs.org/en/5.3/clients.html
         $client = $this->http_transport;
         $guzzle_options = array('body' => $post_options['body'], 'headers' => array('User-Agent' => 'WordPress/' . $wp_version . '; class-udrpc.php-Guzzle/' . $this->version . '; ' . get_bloginfo('url')), 'exceptions' => false, 'timeout' => $post_options['timeout']);
         if (!class_exists('WP_HTTP_Proxy')) {
             require_once ABSPATH . WPINC . '/class-http.php';
         }
         $proxy = new WP_HTTP_Proxy();
         if ($proxy->is_enabled()) {
             $user = $proxy->username();
             $pass = $proxy->password();
             $host = $proxy->host();
             $port = (int) $proxy->port();
             if (empty($port)) {
                 $port = 8080;
             }
             if (!empty($host) && $proxy->send_through_proxy($this->destination_url)) {
                 $proxy_auth = '';
                 if (!empty($user)) {
                     $proxy_auth = $user;
                     if (!empty($pass)) {
                         $proxy_auth .= ':' . $pass;
                     }
                     $proxy_auth .= '@';
                 }
                 $guzzle_options['proxy'] = array('http' => "http://{$proxy_auth}{$host}:{$port}", 'https' => "http://{$proxy_auth}{$host}:{$port}");
             }
         }
         if (defined('UDRPC_GUZZLE_SSL_VERIFY')) {
             $verify = UDRPC_GUZZLE_SSL_VERIFY;
         } elseif (file_exists(ABSPATH . WPINC . '/certificates/ca-bundle.crt')) {
             $verify = ABSPATH . WPINC . '/certificates/ca-bundle.crt';
         } else {
             $verify = true;
         }
         $guzzle_options['verify'] = apply_filters('udrpc_guzzle_verify', $verify);
         if (!empty($http_credentials['username'])) {
             $authentication_method = empty($http_credentials['authentication_method']) ? 'basic' : $http_credentials['authentication_method'];
             $password = empty($http_credentials['password']) ? '' : $http_credentials['password'];
             $guzzle_options['auth'] = array($http_credentials['username'], $password, $authentication_method);
         }
         $response = $client->post($this->destination_url, apply_filters('udrpc_guzzle_options', $guzzle_options, $this));
         $formatted_response = array('response' => array('code' => $response->getStatusCode()), 'body' => $response->getBody());
         return $formatted_response;
     } else {
         $post_options['user-agent'] = 'WordPress/' . $wp_version . '; class-udrpc.php/' . $this->version . '; ' . get_bloginfo('url');
         if (!empty($http_credentials['username'])) {
             $authentication_type = empty($http_credentials['authentication_type']) ? 'basic' : $http_credentials['authentication_type'];
             if ('basic' != $authentication_type) {
                 return new WP_Error('unsupported_http_authentication_type', 'Only HTTP basic authentication is supported (for other types, use Guzzle)');
             }
             $password = empty($http_credentials['password']) ? '' : $http_credentials['password'];
             $post_options['headers'] = array('Authorization' => 'Basic ' . base64_encode($http_credentials['username'] . ':' . $password));
         }
         return wp_remote_post($this->destination_url, $post_options);
     }
 }

 /**
  * Get the S3 response
  *
  * @return object | false
  */
 public function getResponse()
 {
     $query = '';
     if (sizeof($this->parameters) > 0) {
         $query = substr($this->uri, -1) !== '?' ? '?' : '&';
         foreach ($this->parameters as $var => $value) {
             if ($value == null || $value == '') {
                 $query .= $var . '&';
             } else {
                 $query .= $var . '=' . rawurlencode($value) . '&';
             }
         }
         $query = substr($query, 0, -1);
         $this->uri .= $query;
         if (array_key_exists('acl', $this->parameters) || array_key_exists('location', $this->parameters) || array_key_exists('torrent', $this->parameters) || array_key_exists('logging', $this->parameters) || array_key_exists('partNumber', $this->parameters) || array_key_exists('uploads', $this->parameters) || array_key_exists('uploadId', $this->parameters)) {
             $this->resource .= $query;
         }
     }
     $url = (UpdraftPlus_S3::$useSSL ? 'https://' : 'http://') . ($this->headers['Host'] !== '' ? $this->headers['Host'] : $this->endpoint) . $this->uri;
     //var_dump('bucket: ' . $this->bucket, 'uri: ' . $this->uri, 'resource: ' . $this->resource, 'url: ' . $url);
     // Basic setup
     $curl = curl_init();
     curl_setopt($curl, CURLOPT_USERAGENT, 'S3/php');
     if (UpdraftPlus_S3::$useSSL) {
         // SSL Validation can now be optional for those with broken OpenSSL installations
         curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, UpdraftPlus_S3::$useSSLValidation ? 2 : 0);
         curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, UpdraftPlus_S3::$useSSLValidation ? 1 : 0);
         if (UpdraftPlus_S3::$sslKey !== null) {
             curl_setopt($curl, CURLOPT_SSLKEY, UpdraftPlus_S3::$sslKey);
         }
         if (UpdraftPlus_S3::$sslCert !== null) {
             curl_setopt($curl, CURLOPT_SSLCERT, UpdraftPlus_S3::$sslCert);
         }
         if (UpdraftPlus_S3::$sslCACert !== null) {
             curl_setopt($curl, CURLOPT_CAINFO, UpdraftPlus_S3::$sslCACert);
         }
     }
     curl_setopt($curl, CURLOPT_URL, $url);
     $wp_proxy = new WP_HTTP_Proxy();
     if (UpdraftPlus_S3::$proxy != null && isset(UpdraftPlus_S3::$proxy['host']) && $wp_proxy->send_through_proxy($url)) {
         curl_setopt($curl, CURLOPT_PROXY, UpdraftPlus_S3::$proxy['host']);
         curl_setopt($curl, CURLOPT_PROXYTYPE, UpdraftPlus_S3::$proxy['type']);
         if (!empty(UpdraftPlus_S3::$proxy['port'])) {
             curl_setopt($curl, CURLOPT_PROXYPORT, UpdraftPlus_S3::$proxy['port']);
         }
         if (isset(UpdraftPlus_S3::$proxy['user'], UpdraftPlus_S3::$proxy['pass']) && UpdraftPlus_S3::$proxy['user'] != null && UpdraftPlus_S3::$proxy['pass'] != null) {
             curl_setopt($curl, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
             curl_setopt($curl, CURLOPT_PROXYUSERPWD, sprintf('%s:%s', UpdraftPlus_S3::$proxy['user'], UpdraftPlus_S3::$proxy['pass']));
         }
     }
     // Headers
     $headers = array();
     $amz = array();
     foreach ($this->amzHeaders as $header => $value) {
         if (strlen($value) > 0) {
             $headers[] = $header . ': ' . $value;
         }
     }
     foreach ($this->headers as $header => $value) {
         if (strlen($value) > 0) {
             $headers[] = $header . ': ' . $value;
         }
     }
     // Collect AMZ headers for signature
     foreach ($this->amzHeaders as $header => $value) {
         if (strlen($value) > 0) {
             $amz[] = strtolower($header) . ':' . $value;
         }
     }
     // AMZ headers must be sorted
     if (sizeof($amz) > 0) {
         //sort($amz);
         usort($amz, array(&$this, '__sortMetaHeadersCmp'));
         $amz = "\n" . implode("\n", $amz);
     } else {
         $amz = '';
     }
     if (UpdraftPlus_S3::hasAuth()) {
         // Authorization string (CloudFront stringToSign should only contain a date)
         if ($this->headers['Host'] == 'cloudfront.amazonaws.com') {
             $headers[] = 'Authorization: ' . UpdraftPlus_S3::__getSignature($this->headers['Date']);
         } else {
             $headers[] = 'Authorization: ' . UpdraftPlus_S3::__getSignature($this->verb . "\n" . $this->headers['Content-MD5'] . "\n" . $this->headers['Content-Type'] . "\n" . $this->headers['Date'] . $amz . "\n" . $this->resource);
         }
     }
     curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
     curl_setopt($curl, CURLOPT_HEADER, false);
     curl_setopt($curl, CURLOPT_RETURNTRANSFER, false);
     curl_setopt($curl, CURLOPT_WRITEFUNCTION, array(&$this, '__responseWriteCallback'));
     curl_setopt($curl, CURLOPT_HEADERFUNCTION, array(&$this, '__responseHeaderCallback'));
     @curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
     // Request types
     switch ($this->verb) {
         case 'GET':
             break;
//.........这里部分代码省略.........

 /**
  * Send a HTTP request to a URI using cURL extension.
  *
  * @access public
  * @since 2.7.0
  *
  * @param string $url
  * @param str|array $args Optional. Override the defaults.
  * @return array 'headers', 'body', 'response', 'cookies' and 'filename' keys.
  */
 function request($url, $args = array())
 {
     $defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
     $r = wp_parse_args($args, $defaults);
     if (isset($r['headers']['User-Agent'])) {
         $r['user-agent'] = $r['headers']['User-Agent'];
         unset($r['headers']['User-Agent']);
     } else {
         if (isset($r['headers']['user-agent'])) {
             $r['user-agent'] = $r['headers']['user-agent'];
             unset($r['headers']['user-agent']);
         }
     }
     // Construct Cookie: header if any cookies are set.
     WP_Http::buildCookieHeader($r);
     $handle = curl_init();
     // cURL offers really easy proxy support.
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
         curl_setopt($handle, CURLOPT_PROXY, $proxy->host());
         curl_setopt($handle, CURLOPT_PROXYPORT, $proxy->port());
         if ($proxy->use_authentication()) {
             curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
             curl_setopt($handle, CURLOPT_PROXYUSERPWD, $proxy->authentication());
         }
     }
     $is_local = isset($args['local']) && $args['local'];
     $ssl_verify = isset($args['sslverify']) && $args['sslverify'];
     if ($is_local) {
         $ssl_verify = apply_filters('https_local_ssl_verify', $ssl_verify);
     } elseif (!$is_local) {
         $ssl_verify = apply_filters('https_ssl_verify', $ssl_verify);
     }
     // CURLOPT_TIMEOUT and CURLOPT_CONNECTTIMEOUT expect integers.  Have to use ceil since
     // a value of 0 will allow an ulimited timeout.
     $timeout = (int) ceil($r['timeout']);
     curl_setopt($handle, CURLOPT_CONNECTTIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_TIMEOUT, $timeout);
     curl_setopt($handle, CURLOPT_URL, $url);
     curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($handle, CURLOPT_SSL_VERIFYHOST, $ssl_verify === true ? 2 : false);
     curl_setopt($handle, CURLOPT_SSL_VERIFYPEER, $ssl_verify);
     curl_setopt($handle, CURLOPT_USERAGENT, $r['user-agent']);
     curl_setopt($handle, CURLOPT_MAXREDIRS, $r['redirection']);
     switch ($r['method']) {
         case 'HEAD':
             curl_setopt($handle, CURLOPT_NOBODY, true);
             break;
         case 'POST':
             curl_setopt($handle, CURLOPT_POST, true);
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
         case 'PUT':
             curl_setopt($handle, CURLOPT_CUSTOMREQUEST, 'PUT');
             curl_setopt($handle, CURLOPT_POSTFIELDS, $r['body']);
             break;
     }
     if (true === $r['blocking']) {
         curl_setopt($handle, CURLOPT_HEADERFUNCTION, array(&$this, 'stream_headers'));
     }
     curl_setopt($handle, CURLOPT_HEADER, false);
     // If streaming to a file open a file handle, and setup our curl streaming handler
     if ($r['stream']) {
         if (!WP_DEBUG) {
             $stream_handle = @fopen($r['filename'], 'w+');
         } else {
             $stream_handle = fopen($r['filename'], 'w+');
         }
         if (!$stream_handle) {
             return new WP_Error('http_request_failed', sprintf(__('Could not open handle for fopen() to %s'), $r['filename']));
         }
         curl_setopt($handle, CURLOPT_FILE, $stream_handle);
     }
     // The option doesn't work with safe mode or when open_basedir is set.
     if (!ini_get('safe_mode') && !ini_get('open_basedir') && 0 !== $r['_redirection']) {
         curl_setopt($handle, CURLOPT_FOLLOWLOCATION, true);
     }
     if (!empty($r['headers'])) {
         // cURL expects full header strings in each element
         $headers = array();
         foreach ($r['headers'] as $name => $value) {
             $headers[] = "{$name}: {$value}";
         }
         curl_setopt($handle, CURLOPT_HTTPHEADER, $headers);
     }
     if ($r['httpversion'] == '1.0') {
         curl_setopt($handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
     } else {
         curl_setopt($handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
//.........这里部分代码省略.........

 /**
  * Execute an API call
  * @todo Improve error handling
  * @param string $method The HTTP method
  * @param string $url The API endpoint
  * @param string $call The API method to call
  * @param array $additional Additional parameters
  * @return string|object stdClass
  */
 public function fetch($method, $url, $call, array $additional = array())
 {
     // Get the signed request URL
     $request = $this->getSignedRequest($method, $url, $call, $additional);
     // Initialise and execute a cURL request
     $handle = curl_init($request['url']);
     // Get the default options array
     $options = $this->defaultOptions;
     if (!UpdraftPlus_Options::get_updraft_option('updraft_ssl_useservercerts')) {
         $options[CURLOPT_CAINFO] = UPDRAFTPLUS_DIR . '/includes/cacert.pem';
     }
     if (UpdraftPlus_Options::get_updraft_option('updraft_ssl_disableverify')) {
         $options[CURLOPT_SSL_VERIFYPEER] = false;
     } else {
         $options[CURLOPT_SSL_VERIFYPEER] = true;
     }
     if (!class_exists('WP_HTTP_Proxy')) {
         require_once ABSPATH . WPINC . '/class-http.php';
     }
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled()) {
         # WP_HTTP_Proxy returns empty strings if nothing is set
         $user = $proxy->username();
         $pass = $proxy->password();
         $host = $proxy->host();
         $port = (int) $proxy->port();
         if (empty($port)) {
             $port = 8080;
         }
         if (!empty($host) && $proxy->send_through_proxy($request['url'])) {
             $options[CURLOPT_PROXY] = $host;
             $options[CURLOPT_PROXYTYPE] = CURLPROXY_HTTP;
             $options[CURLOPT_PROXYPORT] = $port;
             if (!empty($user) && !empty($pass)) {
                 $options[CURLOPT_PROXYAUTH] = CURLAUTH_ANY;
                 $options[CURLOPT_PROXYUSERPWD] = sprintf('%s:%s', $user, $pass);
             }
         }
     }
     if ($method == 'GET' && $this->outFile) {
         // GET
         $options[CURLOPT_RETURNTRANSFER] = false;
         $options[CURLOPT_HEADER] = false;
         $options[CURLOPT_FILE] = $this->outFile;
         $options[CURLOPT_BINARYTRANSFER] = true;
         $options[CURLOPT_FAILONERROR] = true;
         if (isset($additional['headers'])) {
             $options[CURLOPT_HTTPHEADER] = $additional['headers'];
         }
         $this->outFile = null;
     } elseif ($method == 'POST') {
         // POST
         $options[CURLOPT_POST] = true;
         $options[CURLOPT_POSTFIELDS] = $request['postfields'];
     } elseif ($method == 'PUT' && $this->inFile) {
         // PUT
         $options[CURLOPT_PUT] = true;
         $options[CURLOPT_INFILE] = $this->inFile;
         // @todo Update so the data is not loaded into memory to get its size
         $options[CURLOPT_INFILESIZE] = strlen(stream_get_contents($this->inFile));
         fseek($this->inFile, 0);
         $this->inFile = null;
     }
     // Set the cURL options at once
     curl_setopt_array($handle, $options);
     // Execute, get any error and close
     $response = curl_exec($handle);
     $error = curl_error($handle);
     $getinfo = curl_getinfo($handle);
     curl_close($handle);
     //Check if a cURL error has occured
     if ($response === false) {
         throw new Dropbox_CurlException($error);
     } else {
         // Parse the response if it is a string
         if (is_string($response)) {
             $response = $this->parse($response);
         }
         // Set the last response
         $this->lastResponse = $response;
         $code = !empty($response['code']) ? $response['code'] : $getinfo['http_code'];
         // The API doesn't return an error message for the 304 status code...
         // 304's are only returned when the path supplied during metadata calls has not been modified
         if ($code == 304) {
             $response['body'] = new stdClass();
             $response['body']->error = 'The folder contents have not changed';
         }
         // Check if an error occurred and throw an Exception
         if (!empty($response['body']->error)) {
             // Dropbox returns error messages inconsistently...
             if ($response['body']->error instanceof stdClass) {
//.........这里部分代码省略.........

 /**
  * Make an HTTP request
  *
  * @return API results
  */
 function http($url, $method, $postfields = NULL)
 {
     $this->http_info = array();
     $ci = curl_init();
     /* Curl settings */
     curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
     curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
     curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
     curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
     curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
     curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
     curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
     curl_setopt($ci, CURLOPT_HEADER, FALSE);
     /* Proxy Support via WP_HTTP_Proxy */
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
         curl_setopt($ci, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
         curl_setopt($ci, CURLOPT_PROXY, $proxy->host());
         curl_setopt($ci, CURLOPT_PROXYPORT, $proxy->port());
         if ($proxy->use_authentication()) {
             curl_setopt($ci, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
             curl_setopt($ci, CURLOPT_PROXYUSERPWD, $proxy->authentication());
         }
     }
     switch ($method) {
         case 'POST':
             curl_setopt($ci, CURLOPT_POST, TRUE);
             if (!empty($postfields)) {
                 curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
             }
             break;
         case 'DELETE':
             curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
             if (!empty($postfields)) {
                 $url = "{$url}?{$postfields}";
             }
     }
     curl_setopt($ci, CURLOPT_URL, $url);
     $response = curl_exec($ci);
     $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
     $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
     $this->url = $url;
     curl_close($ci);
     return $response;
 }

 /**
  * Call REST API
  * 
  * @param $strURL Remote file URL
  */
 function callREST($strURL)
 {
     $strPiwikURL = self::$aryGlobalSettings['piwik_url'];
     if (substr($strPiwikURL, -1, 1) != '/') {
         $strPiwikURL .= '/';
     }
     $strURL = $strPiwikURL . '?module=API' . $strURL;
     // Use cURL if available
     if (function_exists('curl_init')) {
         // Init cURL
         $c = curl_init($strURL);
         // Disable SSL peer verification if asked to
         curl_setopt($c, CURLOPT_SSL_VERIFYPEER, !self::$aryGlobalSettings['disable_ssl_verify']);
         // Set user agent
         curl_setopt($c, CURLOPT_USERAGENT, self::$aryGlobalSettings['piwik_useragent'] == 'php' ? ini_get('user_agent') : self::$aryGlobalSettings['piwik_useragent_string']);
         // Configure cURL CURLOPT_RETURNTRANSFER = 1
         curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
         // Configure cURL CURLOPT_HEADER = 0
         curl_setopt($c, CURLOPT_HEADER, 0);
         // Set cURL timeout
         curl_setopt($c, CURLOPT_TIMEOUT, self::$aryGlobalSettings['connection_timeout']);
         if (WP_HTTP_Proxy::is_enabled() && WP_HTTP_Proxy::send_through_proxy($strURL)) {
             curl_setopt($c, CURLOPT_PROXY, WP_HTTP_Proxy::host());
             curl_setopt($c, CURLOPT_PROXYPORT, WP_HTTP_Proxy::port());
             if (WP_HTTP_Proxy::use_authentication()) {
                 curl_setopt($c, CURLOPT_PROXYUSERPWD, WP_HTTP_Proxy::username() . ':' . WP_HTTP_Proxy::password());
             }
         }
         // Get result
         $strResult = curl_exec($c);
         // Close connection
         curl_close($c);
         // cURL not available but url fopen allowed
     } elseif (ini_get('allow_url_fopen')) {
         // Set timeout
         $resContext = stream_context_create(array('http' => array('timeout' => self::$aryGlobalSettings['connection_timeout'])));
         // Get file using file_get_contents
         $strResult = @file_get_contents($strURL, false, $strContext);
         // Error: Not possible to get remote file
     } else {
         $strResult = serialize(array('result' => 'error', 'message' => 'Remote access to Piwik not possible. Enable allow_url_fopen or CURL.'));
     }
     // Return result
     return $strResult;
 }

 /**
  * Execute an API call
  * @todo Improve error handling
  * @param string $method The HTTP method
  * @param string $url The API endpoint
  * @param string $call The API method to call
  * @param array $additional Additional parameters
  * @return string|object stdClass
  */
 public function fetch($method, $url, $call, array $additional = array())
 {
     // Get the signed request URL
     $request = $this->getSignedRequest($method, $url, $call, $additional);
     // Initialise and execute a cURL request
     $handle = curl_init($request['url']);
     // Get the default options array
     $options = $this->defaultOptions;
     if (!UpdraftPlus_Options::get_updraft_option('updraft_ssl_useservercerts')) {
         $options[CURLOPT_CAINFO] = UPDRAFTPLUS_DIR . '/includes/cacert.pem';
     }
     if (UpdraftPlus_Options::get_updraft_option('updraft_ssl_disableverify')) {
         $options[CURLOPT_SSL_VERIFYPEER] = false;
     } else {
         $options[CURLOPT_SSL_VERIFYPEER] = true;
     }
     if (!class_exists('WP_HTTP_Proxy')) {
         require_once ABSPATH . WPINC . '/class-http.php';
     }
     $proxy = new WP_HTTP_Proxy();
     if ($proxy->is_enabled()) {
         # WP_HTTP_Proxy returns empty strings if nothing is set
         $user = $proxy->username();
         $pass = $proxy->password();
         $host = $proxy->host();
         $port = (int) $proxy->port();
         if (empty($port)) {
             $port = 8080;
         }
         if (!empty($host) && $proxy->send_through_proxy($request['url'])) {
             $options[CURLOPT_PROXY] = $host;
             $options[CURLOPT_PROXYTYPE] = CURLPROXY_HTTP;
             $options[CURLOPT_PROXYPORT] = $port;
             if (!empty($user) && !empty($pass)) {
                 $options[CURLOPT_PROXYAUTH] = CURLAUTH_ANY;
                 $options[CURLOPT_PROXYUSERPWD] = sprintf('%s:%s', $user, $pass);
             }
         }
     }
     if (isset($request['headers'])) {
         $options[CURLOPT_HTTPHEADER] = $request['headers'];
     }
     /*
        Add check to see if it's an API v2 call if so then json encode the contents. This is so that it is backwards compatible with API v1 endpoints.
     */
     if (isset($additional['api_v2']) && !empty($request['postfields'])) {
         $request['postfields'] = json_encode($request['postfields']);
     }
     if ($method == 'GET' && $this->outFile) {
         // GET
         $options[CURLOPT_RETURNTRANSFER] = false;
         $options[CURLOPT_HEADER] = false;
         $options[CURLOPT_FILE] = $this->outFile;
         $options[CURLOPT_BINARYTRANSFER] = true;
         $options[CURLOPT_FAILONERROR] = true;
         /*
            Not sure if this is used, keeping it here for backwards compatibility at the moment.
            With API v2 the headers are set in the $request they are set above if they are set.
         */
         if (isset($additional['headers'])) {
             $options[CURLOPT_HTTPHEADER] = $additional['headers'];
         }
         $this->outFile = null;
     } elseif ($method == 'POST' && $this->outFile) {
         // POST
         $options[CURLOPT_POST] = true;
         $options[CURLOPT_RETURNTRANSFER] = false;
         $options[CURLOPT_HEADER] = false;
         $options[CURLOPT_FILE] = $this->outFile;
         $options[CURLOPT_BINARYTRANSFER] = true;
         $options[CURLOPT_FAILONERROR] = true;
         $this->outFile = null;
     } elseif ($method == 'POST' && $this->inFile) {
         // POST
         $options[CURLOPT_POST] = true;
         $options[CURLOPT_POSTFIELDS] = $this->inFile;
     } elseif ($method == 'POST') {
         // POST
         $options[CURLOPT_POST] = true;
         $options[CURLOPT_POSTFIELDS] = $request['postfields'];
     } elseif ($method == 'PUT' && $this->inFile) {
         // PUT
         $options[CURLOPT_PUT] = true;
         $options[CURLOPT_INFILE] = $this->inFile;
         // @todo Update so the data is not loaded into memory to get its size
         $options[CURLOPT_INFILESIZE] = strlen(stream_get_contents($this->inFile));
         fseek($this->inFile, 0);
         $this->inFile = null;
     }
     // Set the cURL options at once
     curl_setopt_array($handle, $options);
//.........这里部分代码省略.........

function sixscan_common_gather_system_information_for_anonymous_support_ticket()
{
    $submission_data = "\n";
    $submission_data .= "OS: " . PHP_OS . " \n";
    $submission_data .= "Server info: " . print_r($_SERVER, TRUE);
    $regdata_status = sixscan_common_is_regdata_present();
    $submission_data .= "Regdata present: {$regdata_status}\n";
    $write_method = get_option(SIXSCAN_OPTION_WPFS_CONFIG) === FALSE ? "Direct_access" : "WP_filesystem";
    $submission_data .= "Write method: {$write_method}\n";
    /* Check , whether site can access external resources */
    $url = SIXSCAN_BODYGUARD_REGISTER_URL;
    $proxy = new WP_HTTP_Proxy();
    if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) {
        $is_through_proxy = "true";
    } else {
        $is_through_proxy = "false";
    }
    $submission_data .= "Is access through proxy: {$is_through_proxy}\n";
    $htaccess_contents = file_get_contents(sixscan_common_get_htaccess_file_path(TRUE));
    if ($htaccess_contents == FALSE) {
        $htaccess_contents = "Empty";
    }
    $submission_data .= "Htaccess contents: {$htaccess_contents}\n";
    $plugin_list = get_plugins();
    $submission_data .= "Plugins: " . print_r($plugin_list, TRUE) . "\n";
    $phpinif_info = ini_get_all();
    $submission_data .= "phpinfo(): " . print_r($phpinif_info, true) . "\n";
    return $submission_data;
}