Пример #1
0
 /**
  * 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());
     $r = nxt_parse_args($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.
     nxt_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.
     $proxy = new nxt_HTTP_Proxy();
     if ($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;
     }
     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
     // themselves... Although, it is somewhat pointless without some reference.
     do_action_ref_array('http_api_curl', array(&$handle));
     // We don't need to return the body, so don't. Just execute request and return.
     if (!$r['blocking']) {
         curl_exec($handle);
         curl_close($handle);
         return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array());
     }
     $theResponse = curl_exec($handle);
     if (!empty($theResponse)) {
         $parts = explode("\r\n\r\n", $theResponse);
         $headerLength = curl_getinfo($handle, CURLINFO_HEADER_SIZE);
         $theHeaders = trim(substr($theResponse, 0, $headerLength));
         $theBody = substr($theResponse, $headerLength);
         if (false !== strrpos($theHeaders, "\r\n\r\n")) {
             $headerParts = explode("\r\n\r\n", $theHeaders);
             $theHeaders = $headerParts[count($headerParts) - 1];
         }
         $theHeaders = nxt_Http::processHeaders($theHeaders);
     } else {
         if ($curl_error = curl_error($handle)) {
             return new nxt_Error('http_request_failed', $curl_error);
         }
         if (in_array(curl_getinfo($handle, CURLINFO_HTTP_CODE), array(301, 302))) {
             return new nxt_Error('http_request_failed', __('Too many redirects.'));
         }
         $theHeaders = array('headers' => array(), 'cookies' => array());
         $theBody = '';
     }
     $response = array();
     $response['code'] = curl_getinfo($handle, CURLINFO_HTTP_CODE);
     $response['message'] = get_status_header_desc($response['code']);
     curl_close($handle);
     if (true === $r['decompress'] && true === nxt_Http_Encoding::should_decode($theHeaders['headers'])) {
         $theBody = nxt_Http_Encoding::decompress($theBody);
     }
     return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies']);
 }
Пример #2
0
 /**
  * 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());
     $r = nxt_parse_args($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.
     nxt_Http::buildCookieHeader($r);
     $handle = curl_init();
     // cURL offers really easy proxy support.
     $proxy = new nxt_HTTP_Proxy();
     if ($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 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_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 (!nxt_DEBUG) {
             $stream_handle = @fopen($r['filename'], 'w+');
         } else {
             $stream_handle = fopen($r['filename'], 'w+');
         }
         if (!$stream_handle) {
             return new nxt_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);
     }
     // Cookies are not handled by the HTTP API currently. Allow for plugin authors to handle it
     // themselves... Although, it is somewhat pointless without some reference.
     do_action_ref_array('http_api_curl', array(&$handle));
     // We don't need to return the body, so don't. Just execute request and return.
     if (!$r['blocking']) {
         curl_exec($handle);
         curl_close($handle);
         return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array());
     }
     $theResponse = curl_exec($handle);
     $theBody = '';
     $theHeaders = nxt_Http::processHeaders($this->headers);
     if (strlen($theResponse) > 0 && !is_bool($theResponse)) {
         // is_bool: when using $args['stream'], curl_exec will return (bool)true
         $theBody = $theResponse;
     }
     // If no response, and It's not a HEAD request with valid headers returned
     if (0 == strlen($theResponse) && ('HEAD' != $args['method'] || empty($this->headers))) {
         if ($curl_error = curl_error($handle)) {
             return new nxt_Error('http_request_failed', $curl_error);
         }
         if (in_array(curl_getinfo($handle, CURLINFO_HTTP_CODE), array(301, 302))) {
             return new nxt_Error('http_request_failed', __('Too many redirects.'));
         }
     }
     $this->headers = '';
     $response = array();
     $response['code'] = curl_getinfo($handle, CURLINFO_HTTP_CODE);
     $response['message'] = get_status_header_desc($response['code']);
     curl_close($handle);
     if ($r['stream']) {
         fclose($stream_handle);
     }
     // See #11305 - When running under safe mode, redirection is disabled above. Handle it manually.
     if (!empty($theHeaders['headers']['location']) && (ini_get('safe_mode') || ini_get('open_basedir')) && 0 !== $r['_redirection']) {
         if ($r['redirection']-- > 0) {
             return $this->request($theHeaders['headers']['location'], $r);
         } else {
             return new nxt_Error('http_request_failed', __('Too many redirects.'));
         }
     }
     if (true === $r['decompress'] && true === nxt_Http_Encoding::should_decode($theHeaders['headers'])) {
         $theBody = nxt_Http_Encoding::decompress($theBody);
     }
     return array('headers' => $theHeaders['headers'], 'body' => $theBody, 'response' => $response, 'cookies' => $theHeaders['cookies'], 'filename' => $r['filename']);
 }