<?php
/**
* 作者：smalle
* 网址：http://blog.csdn.net/oldinaction
* 微信公众号：smallelife
*/
//定义 token
define("TOKEN", "smalle");
//实例化对象
$wechatObj = new wechatCallbackapiTest();
//调用函数
if (isset($_GET['echostr'])) {
$wechatObj->valid();
}else{
$wechatObj->responseMsg();
}
class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"];
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
if (!empty($postStr)){
libxml_disable_entity_loader(true);//防止文件泄漏
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$time = time();
if( $keyword == '图文' ) {
$itemTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>2</ArticleCount>
<Articles>
<item>
<Title><![CDATA[微信开发教程哪里有？]]></Title>
<Description><![CDATA[要看就看Smalle微信开发系列教程，网址：http://blog.csdn.net/oldinaction]]></Description>
<PicUrl><![CDATA[http://img.my.csdn.net/uploads/201508/23/1440327708_6632.gif]]></PicUrl>
<Url><![CDATA[http://blog.csdn.net/oldinaction]]></Url>
</item>
<item>
<Title><![CDATA[那么Smalle的微信公众号是？]]></Title>
<Description><![CDATA[这个你就问对人了，请记住Smalle微信公众号：smallelife]]></Description>
<PicUrl><![CDATA[http://img.my.csdn.net/uploads/201508/20/1440071066_3117.jpg]]></PicUrl>
<Url><![CDATA[http://www.2345.com/?k381740148]]></Url>
</item>
</Articles>
</xml>";
$result = sprintf($itemTpl, $fromUsername, $toUsername, $time);
echo $result;
}
}else {
echo "";
exit;
}
}
private function checkSignature()
{
if (!defined("TOKEN")) {
throw new Exception('TOKEN is not defined!');
}
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}
?>
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