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- <?php
- namespace app\lib\wx_encode;
- use app\lib\wx_encode\ErrorCode;
- /**
- * XMLParse class
- *
- * 提供提取消息格式中的密文及生成回复消息格式的接口.
- */
- class XMLParse
- {
- /**
- * 提取出xml数据包中的加密消息
- * @param string $xmltext 待提取的xml字符串
- * @return array
- */
- public function extract($xmltext)
- {
- libxml_disable_entity_loader(true);
- try {
- $xml = new \DOMDocument();
- $xml->loadXML($xmltext);
- $array_e = $xml->getElementsByTagName('Encrypt');
- $array_a = $xml->getElementsByTagName('AppId');
- $encrypt = $array_e->item(0)->nodeValue;
- $tousername = $array_a->item(0)->nodeValue;
- return array(0, $encrypt, $tousername);
- } catch (\Exception $e) {
- //print $e . "\n";
- return array(ErrorCode::$ParseXmlError, null, null);
- }
- }
- /**
- * 生成xml消息
- * @param string $encrypt 加密后的消息密文
- * @param string $signature 安全签名
- * @param string $timestamp 时间戳
- * @param string $nonce 随机字符串
- * @return string
- */
- public function generate($encrypt, $signature, $timestamp, $nonce)
- {
- $format = "<xml>
- <Encrypt><![CDATA[%s]]></Encrypt>
- <MsgSignature><![CDATA[%s]]></MsgSignature>
- <TimeStamp>%s</TimeStamp>
- <Nonce><![CDATA[%s]]></Nonce>
- </xml>";
- return sprintf($format, $encrypt, $signature, $timestamp, $nonce);
- }
- }
- ?>
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