<?php
/**
* @package s9e\TextFormatter
* @copyright Copyright (c) 2010-2021 The s9e authors
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
namespace s9e\TextFormatter\Utils\Http\Clients;
use s9e\TextFormatter\Utils\Http\Client;
class Native extends Client
{
/**
* @var bool Whether to use gzip encoding
*/
public $gzipEnabled;
/**
* Constructor
*/
public function __construct()
{
$this->gzipEnabled = extension_loaded('zlib');
}
/**
* {@inheritdoc}
*/
public function get($url, array $options = [])
{
return $this->request('GET', $url, $options);
}
/**
* {@inheritdoc}
*/
public function post($url, array $options = [], $body = '')
{
return $this->request('POST', $url, $options, $body);
}
/**
* Create a stream context for given request
*
* @param string $method Request method
* @param array $options Request options
* @param string $body Request body
* @return resource
*/
protected function createContext($method, array $options, $body)
{
$contextOptions = [
'ssl' => ['verify_peer' => $this->sslVerifyPeer],
'http' => [
'method' => $method,
'timeout' => $this->timeout,
'header' => $this->generateHeaders($options, $body),
'content' => $body
]
];
return stream_context_create($contextOptions);
}
/**
* Decompress given page if applicable
*
* @param string $content Response body, potentially compressed
* @return string Response body, uncompressed
*/
protected function decompress($content)
{
if ($this->gzipEnabled && substr($content, 0, 2) === "\x1f\x8b")
{
return gzdecode($content);
}
return $content;
}
/**
* Generate a list of headers for given request
*
* @param array $options Request options
* @param string $body Request body
* @return string[]
*/
protected function generateHeaders(array $options, $body)
{
$options += ['headers' => []];
if ($this->gzipEnabled)
{
$options['headers'][] = 'Accept-Encoding: gzip';
}
$options['headers'][] = 'Content-Length: ' . strlen($body);
return $options['headers'];
}
/**
* Execute an HTTP request
*
* @param string $method Request method
* @param string $url Request URL
* @param array $options Request options
* @param string $body Request body
* @return string|bool Response body or FALSE
*/
protected function request($method, $url, array $options, $body = '')
{
$response = @file_get_contents($url, false, $this->createContext($method, $options, $body));
if ($response === false)
{
return false;
}
$response = $this->decompress($response);
if (!empty($options['returnHeaders']))
{
$response = implode("\r\n", $http_response_header) . "\r\n\r\n" . $response;
}
return $response;
}
}