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							- <?php
 
- include_once "errorCode.php";
 
- /**
 
-  * 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 string 提取出的加密消息字符串
 
- 	 */
 
- 	public function extract($xmltext)
 
- 	{
 
- 		try {
 
- 			$xml = new DOMDocument();
 
- 			$xml->loadXML($xmltext);
 
- 			$array_e = $xml->getElementsByTagName('Encrypt');
 
- 			$array_a = $xml->getElementsByTagName('ToUserName');
 
- 			$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
 
- 	 */
 
- 	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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