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<?php |
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namespace Nilnice\Payment\Wechat\Traits; |
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use GuzzleHttp\Client; |
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use Illuminate\Support\Arr; |
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use Illuminate\Support\Collection; |
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use Nilnice\Payment\Constant; |
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use Nilnice\Payment\Exception\GatewayException; |
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use Nilnice\Payment\Exception\InvalidSignException; |
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use Psr\Http\Message\ResponseInterface; |
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trait RequestTrait |
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{ |
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/** |
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* Send a Wechat interface request. |
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* |
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* @param string $gateway |
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* @param array $array |
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* @param string $key |
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* |
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* @return \Illuminate\Support\Collection |
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* @throws \Nilnice\Payment\Exception\GatewayException |
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* @throws \InvalidArgumentException |
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* @throws \Nilnice\Payment\Exception\InvalidKeyException |
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* @throws \Nilnice\Payment\Exception\InvalidSignException |
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* @throws \RuntimeException |
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*/ |
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public function send( |
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string $gateway, |
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array $array, |
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string $key |
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) : Collection { |
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$result = $this->post($gateway, self::toXml($array), []); |
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$result = \is_array($result) ? $result : self::fromXml($result); |
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$code = Arr::get($result, 'result_code'); |
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if ($code !== 'SUCCESS') { |
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throw new GatewayException( |
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'Wechat API Error: ' . $result['return_msg'], |
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20000 |
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); |
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} |
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if (self::generateSign($result, $key) === $result['sign']) { |
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return new Collection($result); |
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} |
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throw new InvalidSignException( |
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'Invalid Alipay [signature] verify.', |
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3 |
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); |
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} |
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/** |
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* Send a post request. |
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* |
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* @param string $gateway |
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* @param mixed $parameter |
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* @param array ...$options |
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* |
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* @return mixed |
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* @throws \RuntimeException |
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*/ |
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public function post( |
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string $gateway, |
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$parameter = null, |
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...$options |
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) { |
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$options = $options[0] ?? []; |
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if (\is_array($parameter)) { |
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$options['form_params'] = $parameter; |
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} else { |
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$options['body'] = $parameter; |
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} |
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return $this->request('post', $gateway, $options); |
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} |
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/** |
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* Send a request. |
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* |
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* @param string $method |
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* @param string $gateway |
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* @param array $options |
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* |
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* @return mixed |
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* @throws \RuntimeException |
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*/ |
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public function request( |
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string $method, |
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string $gateway, |
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array $options = [] |
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) { |
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if (property_exists($this, 'config')) { |
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$baseuri = $this->config->get('env') === 'dev' |
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? Constant::WX_PAY_DEV_URI |
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: Constant::WX_PAY_PRO_URI; |
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} |
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$baseuri = $baseuri ?? ''; |
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$timeout = property_exists($this, 'timeout') ? $this->timeout : 5.0; |
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$config = ['base_uri' => $baseuri, 'timeout' => $timeout]; |
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$client = new Client($config); |
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$response = $client->{$method}($gateway, $options); |
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return $this->jsonResponse($response); |
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} |
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/** |
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* Convert array to xml. |
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* |
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* @param array $array |
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* |
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* @return string |
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* @throws \InvalidArgumentException |
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*/ |
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public static function toXml(array $array) : string |
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{ |
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if (! $array) { |
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throw new \InvalidArgumentException('Invalid [array] argument.', 2); |
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} |
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$xml = '<xml>'; |
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foreach ($array as $key => $val) { |
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$xml .= is_numeric($val) |
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? "<{$key}>{$val}</{$key}>" |
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: "<{$key}><![CDATA[{$val}]]></{$key}>"; |
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} |
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$xml .= '</xml>'; |
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return $xml; |
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} |
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/** |
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* Convert xml to array. |
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* |
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* @param string $xml |
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* |
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* @return array |
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* @throws \InvalidArgumentException |
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*/ |
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public static function fromXml(string $xml) : array |
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{ |
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if (! $xml) { |
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throw new \InvalidArgumentException('Invalid [xml] argument.', 3); |
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} |
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libxml_disable_entity_loader(true); |
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$array = simplexml_load_string( |
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$xml, |
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'SimpleXMLElement', |
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LIBXML_NOCDATA |
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); |
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$array = json_decode( |
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json_encode($array, JSON_UNESCAPED_UNICODE), |
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true |
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); |
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return $array; |
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} |
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/** |
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* Decodes a json/javascript/xml response contents. |
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* |
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* @param \Psr\Http\Message\ResponseInterface $response |
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* |
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* @return mixed |
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* @throws \RuntimeException |
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*/ |
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protected function jsonResponse(ResponseInterface $response) |
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{ |
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$type = $response->getHeaderLine('Content-Type'); |
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$content = $response->getBody()->getContents(); |
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if (false !== self::contains($type, 'json')) { |
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$content = json_decode($content, true); |
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} |
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return $content; |
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} |
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/** |
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* Find the position of the first occurrence of a substring in a string. |
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* |
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* @param string $needle |
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* @param string $haystack |
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* @param bool $isStrict |
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* |
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* @return bool|int |
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*/ |
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private static function contains( |
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string $needle, |
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string $haystack, |
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bool $isStrict = false |
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) { |
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return $isStrict |
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? strpos($haystack, $needle) |
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: stripos($haystack, $needle); |
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} |
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} |
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This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.