/**
* NV_http_streams::request()
*
* @param mixed $url
* @param mixed $args
* @return
*/
public function request($url, $args = array())
{
$defaults = array('method' => 'GET', 'timeout' => 5, 'redirection' => 5, 'httpversion' => '1.0', 'blocking' => true, 'headers' => array(), 'body' => null, 'cookies' => array());
$args = NV_Http::build_args($args, $defaults);
// Get user agent
if (isset($args['headers']['User-Agent'])) {
$args['user-agent'] = $args['headers']['User-Agent'];
unset($args['headers']['User-Agent']);
} elseif (isset($args['headers']['user-agent'])) {
$args['user-agent'] = $args['headers']['user-agent'];
unset($args['headers']['user-agent']);
}
// Get Referer
if (isset($args['headers']['Referer'])) {
$args['referer'] = $args['headers']['Referer'];
unset($args['headers']['Referer']);
} elseif (isset($args['headers']['referer'])) {
$args['referer'] = $args['headers']['referer'];
unset($args['headers']['referer']);
}
// Construct Cookie: header if any cookies are set
NV_Http::buildCookieHeader($args);
$arrURL = parse_url($url);
$connect_host = $arrURL['host'];
$secure_transport = ($arrURL['scheme'] == 'ssl' or $arrURL['scheme'] == 'https');
if (!isset($arrURL['port'])) {
if ($arrURL['scheme'] == 'ssl' or $arrURL['scheme'] == 'https') {
$arrURL['port'] = 443;
$secure_transport = true;
} else {
$arrURL['port'] = 80;
}
}
if (isset($args['headers']['Host']) or isset($args['headers']['host'])) {
if (isset($args['headers']['Host'])) {
$arrURL['host'] = $args['headers']['Host'];
} else {
$arrURL['host'] = $args['headers']['host'];
}
unset($args['headers']['Host'], $args['headers']['host']);
}
// Certain versions of PHP have issues with 'localhost' and IPv6, It attempts to connect to ::1,
// which fails when the server is not set up for it. For compatibility, always connect to the IPv4 address.
if (strtolower($connect_host) == 'localhost') {
$connect_host = '127.0.0.1';
}
$connect_host = $secure_transport ? 'ssl://' . $connect_host : 'tcp://' . $connect_host;
$is_local = isset($args['local']) and $args['local'];
$ssl_verify = isset($args['sslverify']) and $args['sslverify'];
// NukeViet has no proxy setup
//$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' => $args['sslcertificates'], 'allow_self_signed' => !$ssl_verify)));
$timeout = (int) floor($args['timeout']);
$utimeout = $timeout == $args['timeout'] ? 0 : 1000000 * $args['timeout'] % 1000000;
$connect_timeout = max($timeout, 1);
$connection_error = null;
// Store error number
$connection_error_str = null;
// Store error string
// In the event that the SSL connection fails, silence the many PHP Warnings
if ($secure_transport) {
$error_reporting = error_reporting(0);
}
// No proxy option on NukeViet, maybe in future!!!!
//if( $proxy->is_enabled() and $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($error_reporting);
}
if ($handle === false) {
// SSL connection failed due to expired/invalid cert, or, OpenSSL configuration is broken
if ($secure_transport and $connection_error === 0 and $connection_error_str === '') {
NV_Http::set_error(6);
return false;
}
NV_Http::set_error(7);
return false;
}
// Verify that the SSL certificate is valid for this request
if ($secure_transport and $ssl_verify) {
if (!self::verify_ssl_certificate($handle, $arrURL['host'])) {
NV_Http::set_error(6);
return false;
}
}
stream_set_timeout($handle, $timeout, $utimeout);
//if( $proxy->is_enabled() and $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 .= '/';
}
$strHeaders = strtoupper($args['method']) . ' ' . $requestPath . ' HTTP/' . $args['httpversion'] . "\r\n";
//if( $proxy->is_enabled() and $proxy->send_through_proxy( $url ) )
//{
// $strHeaders .= 'Host: ' . $arrURL['host'] . ':' . $arrURL['port'] . "\r\n";
//}
//else
//{
$strHeaders .= 'Host: ' . $arrURL['host'] . "\r\n";
//}
if (isset($args['user-agent'])) {
$strHeaders .= 'User-agent: ' . $args['user-agent'] . "\r\n";
}
// Add referer if not empty
if (!empty($args['referer'])) {
$strHeaders .= 'Referer: ' . $args['referer'] . "\r\n";
}
if (is_array($args['headers'])) {
foreach ((array) $args['headers'] as $header => $headerValue) {
$strHeaders .= $header . ': ' . $headerValue . "\r\n";
}
} else {
$strHeaders .= $args['headers'];
}
//if( $proxy->use_authentication() )
//{
// $strHeaders .= $proxy->authentication_header() . "\r\n";
//}
$strHeaders .= "\r\n";
if (!is_null($args['body'])) {
$strHeaders .= $args['body'];
}
fwrite($handle, $strHeaders);
if (!$args['blocking']) {
stream_set_blocking($handle, 0);
fclose($handle);
return array('headers' => array(), 'body' => '', 'response' => array('code' => false, 'message' => false), 'cookies' => array());
}
$strResponse = '';
$bodyStarted = false;
$keep_reading = true;
$block_size = 4096;
if (isset($args['limit_response_size'])) {
$block_size = min($block_size, $args['limit_response_size']);
}
// If streaming to a file setup the file handle
if ($args['stream']) {
$stream_handle = @fopen($args['filename'], 'w+');
if (!$stream_handle) {
NV_Http::set_error(8);
return false;
}
$bytes_written = 0;
while (!feof($handle) and $keep_reading) {
$block = fread($handle, $block_size);
if (!$bodyStarted) {
$strResponse .= $block;
if (strpos($strResponse, "\r\n\r\n")) {
$process = NV_Http::processResponse($strResponse);
$bodyStarted = true;
$block = $process['body'];
unset($strResponse);
$process['body'] = '';
}
}
$this_block_size = strlen($block);
if (isset($args['limit_response_size']) and $bytes_written + $this_block_size > $args['limit_response_size']) {
$block = substr($block, 0, $args['limit_response_size'] - $bytes_written);
}
$bytes_written_to_file = fwrite($stream_handle, $block);
if ($bytes_written_to_file != $this_block_size) {
fclose($handle);
fclose($stream_handle);
NV_Http::set_error(9);
return false;
}
$bytes_written += $bytes_written_to_file;
$keep_reading = !isset($args['limit_response_size']) or $bytes_written < $args['limit_response_size'];
}
fclose($stream_handle);
} else {
$header_length = 0;
// Not end file and some one
while (!feof($handle) and $keep_reading) {
$block = fread($handle, $block_size);
$strResponse .= $block;
if (!$bodyStarted and strpos($strResponse, "\r\n\r\n")) {
$header_length = strpos($strResponse, "\r\n\r\n") + 4;
$bodyStarted = true;
}
$keep_reading = (!$bodyStarted or !isset($args['limit_response_size']) or strlen($strResponse) < $header_length + $args['limit_response_size']);
}
$process = NV_Http::processResponse($strResponse);
unset($strResponse);
}
fclose($handle);
$arrHeaders = NV_Http::processHeaders($process['headers'], $url);
$response = array('headers' => $arrHeaders['headers'], 'body' => null, 'response' => $arrHeaders['response'], 'cookies' => $arrHeaders['cookies'], 'filename' => $args['filename']);
// Handle redirects
if (false !== ($redirect_response = NV_Http::handle_redirects($url, $args, $response))) {
return $redirect_response;
}
// If the body was chunk encoded, then decode it.
if (!empty($process['body']) and isset($arrHeaders['headers']['transfer-encoding']) and 'chunked' == $arrHeaders['headers']['transfer-encoding']) {
$process['body'] = NV_Http::chunkTransferDecode($process['body']);
}
if ($args['decompress'] === true and NV_http_encoding::should_decode($arrHeaders['headers']) === true) {
$process['body'] = NV_http_encoding::decompress($process['body']);
}
if (isset($args['limit_response_size']) and strlen($process['body']) > $args['limit_response_size']) {
$process['body'] = substr($process['body'], 0, $args['limit_response_size']);
}
$response['body'] = str_replace("", "", $process['body']);
return $response;
}
