Request.php
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<?php
namespace AlibabaCloud\Credentials\Request;
use AlibabaCloud\Credentials\Credentials;
use AlibabaCloud\Credentials\EcsRamRoleCredential;
use AlibabaCloud\Credentials\Helper;
use AlibabaCloud\Credentials\RamRoleArnCredential;
use AlibabaCloud\Credentials\Signature\ShaHmac1Signature;
use AlibabaCloud\Credentials\Signature\ShaHmac256WithRsaSignature;
use Exception;
use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Middleware;
use GuzzleHttp\Psr7\Uri;
use AlibabaCloud\Tea\Response;
use Psr\Http\Message\ResponseInterface;
/**
* RESTful RPC Request.
*/
class Request
{
/**
* Request Connect Timeout
*/
const CONNECT_TIMEOUT = 5;
/**
* Request Timeout
*/
const TIMEOUT = 10;
/**
* @var array
*/
private static $config = [];
/**
* @var array
*/
public $options = [];
/**
* @var Uri
*/
public $uri;
/**
* @var EcsRamRoleCredential|RamRoleArnCredential
*/
protected $credential;
/**
* @var ShaHmac256WithRsaSignature|ShaHmac1Signature
*/
protected $signature;
/**
* Request constructor.
*/
public function __construct()
{
$this->uri = (new Uri())->withScheme('https');
$this->options['http_errors'] = false;
$this->options['connect_timeout'] = self::CONNECT_TIMEOUT;
$this->options['timeout'] = self::TIMEOUT;
// Turn on debug mode based on environment variable.
if (strtolower(Helper::env('DEBUG')) === 'sdk') {
$this->options['debug'] = true;
}
}
/**
* @return ResponseInterface
* @throws Exception
*/
public function request()
{
$this->options['query']['Format'] = 'JSON';
$this->options['query']['SignatureMethod'] = $this->signature->getMethod();
$this->options['query']['SignatureVersion'] = $this->signature->getVersion();
$this->options['query']['SignatureNonce'] = self::uuid(json_encode($this->options['query']));
$this->options['query']['Timestamp'] = gmdate('Y-m-d\TH:i:s\Z');
$this->options['query']['Signature'] = $this->signature->sign(
self::signString('GET', $this->options['query']),
$this->credential->getOriginalAccessKeySecret() . '&'
);
return self::createClient()->request('GET', (string)$this->uri, $this->options);
}
/**
* @param string $salt
*
* @return string
*/
public static function uuid($salt)
{
return md5($salt . uniqid(md5(microtime(true)), true));
}
/**
* @param string $method
* @param array $parameters
*
* @return string
*/
public static function signString($method, array $parameters)
{
ksort($parameters);
$canonicalized = '';
foreach ($parameters as $key => $value) {
$canonicalized .= '&' . self::percentEncode($key) . '=' . self::percentEncode($value);
}
return $method . '&%2F&' . self::percentEncode(substr($canonicalized, 1));
}
/**
* @param string $string
*
* @return null|string|string[]
*/
private static function percentEncode($string)
{
$result = rawurlencode($string);
$result = str_replace(['+', '*'], ['%20', '%2A'], $result);
$result = preg_replace('/%7E/', '~', $result);
return $result;
}
/**
* @return Client
* @throws Exception
*/
public static function createClient()
{
if (Credentials::hasMock()) {
$stack = HandlerStack::create(Credentials::getMock());
} else {
$stack = HandlerStack::create();
}
$stack->push(Middleware::mapResponse(static function (ResponseInterface $response) {
return new Response($response);
}));
self::$config['handler'] = $stack;
return new Client(self::$config);
}
}