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function is not described

Requests_Transport_fsockopen::request() public WP 1.0

Perform a request

{} It's a method of the class: Requests_Transport_fsockopen{}

No Hooks.

Return

String. Raw HTTP result

Usage

$Requests_Transport_fsockopen = new Requests_Transport_fsockopen();
$Requests_Transport_fsockopen->request( $url, $headers, $data, $options );
$url(string) (required)
URL to request
$headers(array)
Associative array of request headers
Default: array()
$data(string/array)
Data to send either as the POST body, or as parameters in the URL for a GET/HEAD
Default: array()
$options(array)
Request options, see {@see Requests::response()} for documentation
Default: array()

Code of Requests_Transport_fsockopen::request() WP 5.5.1

<?php
public function request($url, $headers = array(), $data = array(), $options = array()) {
	$options['hooks']->dispatch('fsockopen.before_request');

	$url_parts = parse_url($url);
	if (empty($url_parts)) {
		throw new Requests_Exception('Invalid URL.', 'invalidurl', $url);
	}
	$host = $url_parts['host'];
	$context = stream_context_create();
	$verifyname = false;
	$case_insensitive_headers = new Requests_Utility_CaseInsensitiveDictionary($headers);

	// HTTPS support
	if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https') {
		$remote_socket = 'ssl://' . $host;
		if (!isset($url_parts['port'])) {
			$url_parts['port'] = 443;
		}

		$context_options = array(
			'verify_peer' => true,
			// 'CN_match' => $host,
			'capture_peer_cert' => true
		);
		$verifyname = true;

		// SNI, if enabled (OpenSSL >=0.9.8j)
		if (defined('OPENSSL_TLSEXT_SERVER_NAME') && OPENSSL_TLSEXT_SERVER_NAME) {
			$context_options['SNI_enabled'] = true;
			if (isset($options['verifyname']) && $options['verifyname'] === false) {
				$context_options['SNI_enabled'] = false;
			}
		}

		if (isset($options['verify'])) {
			if ($options['verify'] === false) {
				$context_options['verify_peer'] = false;
			}
			elseif (is_string($options['verify'])) {
				$context_options['cafile'] = $options['verify'];
			}
		}

		if (isset($options['verifyname']) && $options['verifyname'] === false) {
			$context_options['verify_peer_name'] = false;
			$verifyname = false;
		}

		stream_context_set_option($context, array('ssl' => $context_options));
	}
	else {
		$remote_socket = 'tcp://' . $host;
	}

	$this->max_bytes = $options['max_bytes'];

	if (!isset($url_parts['port'])) {
		$url_parts['port'] = 80;
	}
	$remote_socket .= ':' . $url_parts['port'];

	set_error_handler(array($this, 'connect_error_handler'), E_WARNING | E_NOTICE);

	$options['hooks']->dispatch('fsockopen.remote_socket', array(&$remote_socket));

	$socket = stream_socket_client($remote_socket, $errno, $errstr, ceil($options['connect_timeout']), STREAM_CLIENT_CONNECT, $context);

	restore_error_handler();

	if ($verifyname && !$this->verify_certificate_from_context($host, $context)) {
		throw new Requests_Exception('SSL certificate did not match the requested domain name', 'ssl.no_match');
	}

	if (!$socket) {
		if ($errno === 0) {
			// Connection issue
			throw new Requests_Exception(rtrim($this->connect_error), 'fsockopen.connect_error');
		}

		throw new Requests_Exception($errstr, 'fsockopenerror', null, $errno);
	}

	$data_format = $options['data_format'];

	if ($data_format === 'query') {
		$path = self::format_get($url_parts, $data);
		$data = '';
	}
	else {
		$path = self::format_get($url_parts, array());
	}

	$options['hooks']->dispatch('fsockopen.remote_host_path', array(&$path, $url));

	$request_body = '';
	$out = sprintf("%s %s HTTP/%.1F\r\n", $options['type'], $path, $options['protocol_version']);

	if ($options['type'] !== Requests::TRACE) {
		if (is_array($data)) {
			$request_body = http_build_query($data, null, '&');
		}
		else {
			$request_body = $data;
		}

		if (!empty($data)) {
			if (!isset($case_insensitive_headers['Content-Length'])) {
				$headers['Content-Length'] = strlen($request_body);
			}

			if (!isset($case_insensitive_headers['Content-Type'])) {
				$headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8';
			}
		}
	}

	if (!isset($case_insensitive_headers['Host'])) {
		$out .= sprintf('Host: %s', $url_parts['host']);

		if (( 'http' === strtolower($url_parts['scheme']) && $url_parts['port'] !== 80 ) || ( 'https' === strtolower($url_parts['scheme']) && $url_parts['port'] !== 443 )) {
			$out .= ':' . $url_parts['port'];
		}
		$out .= "\r\n";
	}

	if (!isset($case_insensitive_headers['User-Agent'])) {
		$out .= sprintf("User-Agent: %s\r\n", $options['useragent']);
	}

	$accept_encoding = $this->accept_encoding();
	if (!isset($case_insensitive_headers['Accept-Encoding']) && !empty($accept_encoding)) {
		$out .= sprintf("Accept-Encoding: %s\r\n", $accept_encoding);
	}

	$headers = Requests::flatten($headers);

	if (!empty($headers)) {
		$out .= implode("\r\n", $headers) . "\r\n";
	}

	$options['hooks']->dispatch('fsockopen.after_headers', array(&$out));

	if (substr($out, -2) !== "\r\n") {
		$out .= "\r\n";
	}

	if (!isset($case_insensitive_headers['Connection'])) {
		$out .= "Connection: Close\r\n";
	}

	$out .= "\r\n" . $request_body;

	$options['hooks']->dispatch('fsockopen.before_send', array(&$out));

	fwrite($socket, $out);
	$options['hooks']->dispatch('fsockopen.after_send', array($out));

	if (!$options['blocking']) {
		fclose($socket);
		$fake_headers = '';
		$options['hooks']->dispatch('fsockopen.after_request', array(&$fake_headers));
		return '';
	}

	$timeout_sec = (int) floor($options['timeout']);
	if ($timeout_sec == $options['timeout']) {
		$timeout_msec = 0;
	}
	else {
		$timeout_msec = self::SECOND_IN_MICROSECONDS * $options['timeout'] % self::SECOND_IN_MICROSECONDS;
	}
	stream_set_timeout($socket, $timeout_sec, $timeout_msec);

	$response = $body = $headers = '';
	$this->info = stream_get_meta_data($socket);
	$size = 0;
	$doingbody = false;
	$download = false;
	if ($options['filename']) {
		$download = fopen($options['filename'], 'wb');
	}

	while (!feof($socket)) {
		$this->info = stream_get_meta_data($socket);
		if ($this->info['timed_out']) {
			throw new Requests_Exception('fsocket timed out', 'timeout');
		}

		$block = fread($socket, Requests::BUFFER_SIZE);
		if (!$doingbody) {
			$response .= $block;
			if (strpos($response, "\r\n\r\n")) {
				list($headers, $block) = explode("\r\n\r\n", $response, 2);
				$doingbody = true;
			}
		}

		// Are we in body mode now?
		if ($doingbody) {
			$options['hooks']->dispatch('request.progress', array($block, $size, $this->max_bytes));
			$data_length = strlen($block);
			if ($this->max_bytes) {
				// Have we already hit a limit?
				if ($size === $this->max_bytes) {
					continue;
				}
				if (($size + $data_length) > $this->max_bytes) {
					// Limit the length
					$limited_length = ($this->max_bytes - $size);
					$block = substr($block, 0, $limited_length);
				}
			}

			$size += strlen($block);
			if ($download) {
				fwrite($download, $block);
			}
			else {
				$body .= $block;
			}
		}
	}
	$this->headers = $headers;

	if ($download) {
		fclose($download);
	}
	else {
		$this->headers .= "\r\n\r\n" . $body;
	}
	fclose($socket);

	$options['hooks']->dispatch('fsockopen.after_request', array(&$this->headers, &$this->info));
	return $this->headers;
}