/** * Send a HTTP request to a URI using fsockopen(). * * Does not support non-blocking mode. * * @see nxt_Http::request For default options descriptions. * * @since 2.7 * @access public * @param string $url URI resource. * @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); $iError = null; // Store error number $strError = null; // Store error string $arrURL = parse_url($url); $fsockopen_host = $arrURL['host']; $secure_transport = false; if (!isset($arrURL['port'])) { if (($arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https') && extension_loaded('openssl')) { $fsockopen_host = "ssl://{$fsockopen_host}"; $arrURL['port'] = 443; $secure_transport = true; } else { $arrURL['port'] = 80; } } // There are issues with the HTTPS and SSL protocols that cause errors that can be safely // ignored and should be ignored. if (true === $secure_transport) { $error_reporting = error_reporting(0); } $startDelay = time(); $proxy = new nxt_HTTP_Proxy(); if (!defined('nxt_DEBUG') || defined('nxt_DEBUG') && false === nxt_DEBUG) { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = @fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = @fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } else { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } $endDelay = time(); // If the delay is greater than the timeout then fsockopen should't be used, because it will // cause a long delay. $elapseDelay = $endDelay - $startDelay > $r['timeout']; if (true === $elapseDelay) { backpress_add_option('disable_fsockopen', $endDelay, null, true); } if (false === $handle) { return new nxt_Error('http_request_failed', $iError . ': ' . $strError); } stream_set_timeout($handle, $r['timeout']); if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { //Some proxies require full URL in this field. $requestPath = $url; } else { $requestPath = $arrURL['path'] . (isset($arrURL['query']) ? '?' . $arrURL['query'] : ''); } if (empty($requestPath)) { $requestPath .= '/'; } $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n"; if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n"; } else { $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n"; } if (isset($r['user-agent'])) { $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n"; } if (is_array($r['headers'])) { foreach ((array) $r['headers'] as $header => $headerValue) { $strHeaders .= $header . ': ' . $headerValue . "\r\n"; } } else { $strHeaders .= $r['headers']; } if ($proxy->use_authentication()) { $strHeaders .= $proxy->authentication_header() . "\r\n"; } $strHeaders .= "\r\n"; if (!is_null($r['body'])) { $strHeaders .= $r['body']; } fwrite($handle, $strHeaders); if (!$r['blocking']) { fclose($handle); return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array()); } $strResponse = ''; while (!feof($handle)) { $strResponse .= fread($handle, 4096); } fclose($handle); if (true === $secure_transport) { error_reporting($error_reporting); } $process = nxt_Http::processResponse($strResponse); $arrHeaders = nxt_Http::processHeaders($process['headers']); // Is the response code within the 400 range? if ((int) $arrHeaders['response']['code'] >= 400 && (int) $arrHeaders['response']['code'] < 500) { return new nxt_Error('http_request_failed', $arrHeaders['response']['code'] . ': ' . $arrHeaders['response']['message']); } // If location is found, then assume redirect and redirect to location. if (isset($arrHeaders['headers']['location'])) { if ($r['redirection']-- > 0) { return $this->request($arrHeaders['headers']['location'], $r); } else { return new nxt_Error('http_request_failed', __('Too many redirects.')); } } // If the body was chunk encoded, then decode it. if (!empty($process['body']) && isset($arrHeaders['headers']['transfer-encoding']) && 'chunked' == $arrHeaders['headers']['transfer-encoding']) { $process['body'] = nxt_Http::chunkTransferDecode($process['body']); } if (true === $r['decompress'] && true === nxt_Http_Encoding::should_decode($arrHeaders['headers'])) { $process['body'] = nxt_Http_Encoding::decompress($process['body']); } return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies']); }
/** * Send a HTTP request to a URI using fsockopen(). * * Does not support non-blocking mode. * * @see nxt_Http::request For default options descriptions. * * @since 2.7 * @access public * @param string $url URI resource. * @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); $iError = null; // Store error number $strError = null; // Store error string $arrURL = parse_url($url); $fsockopen_host = $arrURL['host']; $secure_transport = false; if (!isset($arrURL['port'])) { if (($arrURL['scheme'] == 'ssl' || $arrURL['scheme'] == 'https') && extension_loaded('openssl')) { $fsockopen_host = "ssl://{$fsockopen_host}"; $arrURL['port'] = 443; $secure_transport = true; } else { $arrURL['port'] = 80; } } //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1, // which fails when the server is not set up for it. For compatibility, always connect to the IPv4 address. if ('localhost' == strtolower($fsockopen_host)) { $fsockopen_host = '127.0.0.1'; } // There are issues with the HTTPS and SSL protocols that cause errors that can be safely // ignored and should be ignored. if (true === $secure_transport) { $error_reporting = error_reporting(0); } $startDelay = time(); $proxy = new nxt_HTTP_Proxy(); if (!nxt_DEBUG) { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = @fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = @fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } else { if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $handle = fsockopen($proxy->host(), $proxy->port(), $iError, $strError, $r['timeout']); } else { $handle = fsockopen($fsockopen_host, $arrURL['port'], $iError, $strError, $r['timeout']); } } $endDelay = time(); // If the delay is greater than the timeout then fsockopen shouldn't be used, because it will // cause a long delay. $elapseDelay = $endDelay - $startDelay > $r['timeout']; if (true === $elapseDelay) { add_option('disable_fsockopen', $endDelay, null, true); } if (false === $handle) { return new nxt_Error('http_request_failed', $iError . ': ' . $strError); } $timeout = (int) floor($r['timeout']); $utimeout = $timeout == $r['timeout'] ? 0 : 1000000 * $r['timeout'] % 1000000; stream_set_timeout($handle, $timeout, $utimeout); if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { //Some proxies require full URL in this field. $requestPath = $url; } else { $requestPath = $arrURL['path'] . (isset($arrURL['query']) ? '?' . $arrURL['query'] : ''); } if (empty($requestPath)) { $requestPath .= '/'; } $strHeaders = strtoupper($r['method']) . ' ' . $requestPath . ' HTTP/' . $r['httpversion'] . "\r\n"; if ($proxy->is_enabled() && $proxy->send_through_proxy($url)) { $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n"; } else { $strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n"; } if (isset($r['user-agent'])) { $strHeaders .= 'User-agent: ' . $r['user-agent'] . "\r\n"; } if (is_array($r['headers'])) { foreach ((array) $r['headers'] as $header => $headerValue) { $strHeaders .= $header . ': ' . $headerValue . "\r\n"; } } else { $strHeaders .= $r['headers']; } if ($proxy->use_authentication()) { $strHeaders .= $proxy->authentication_header() . "\r\n"; } $strHeaders .= "\r\n"; if (!is_null($r['body'])) { $strHeaders .= $r['body']; } fwrite($handle, $strHeaders); if (!$r['blocking']) { fclose($handle); return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array()); } $strResponse = ''; $bodyStarted = false; // If streaming to a file setup the file handle if ($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'), $r['filename'])); } while (!feof($handle)) { $block = fread($handle, 4096); if ($bodyStarted) { fwrite($stream_handle, $block); } else { $strResponse .= $block; if (strpos($strResponse, "\r\n\r\n")) { $process = nxt_Http::processResponse($strResponse); $bodyStarted = true; fwrite($stream_handle, $process['body']); unset($strResponse); $process['body'] = ''; } } } fclose($stream_handle); } else { while (!feof($handle)) { $strResponse .= fread($handle, 4096); } $process = nxt_Http::processResponse($strResponse); unset($strResponse); } fclose($handle); if (true === $secure_transport) { error_reporting($error_reporting); } $arrHeaders = nxt_Http::processHeaders($process['headers']); // If location is found, then assume redirect and redirect to location. if (isset($arrHeaders['headers']['location']) && 0 !== $r['_redirection']) { if ($r['redirection']-- > 0) { return $this->request($arrHeaders['headers']['location'], $r); } else { return new nxt_Error('http_request_failed', __('Too many redirects.')); } } // If the body was chunk encoded, then decode it. if (!empty($process['body']) && isset($arrHeaders['headers']['transfer-encoding']) && 'chunked' == $arrHeaders['headers']['transfer-encoding']) { $process['body'] = nxt_Http::chunkTransferDecode($process['body']); } if (true === $r['decompress'] && true === nxt_Http_Encoding::should_decode($arrHeaders['headers'])) { $process['body'] = nxt_Http_Encoding::decompress($process['body']); } return array('headers' => $arrHeaders['headers'], 'body' => $process['body'], 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies'], 'filename' => $r['filename']); }