<?php
/**
* wechat php test
*/
//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
//$wechatObj->valid();
$wechatObj->responseMsg();
class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
//$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
$postStr = file_get_contents("php://input");
//file_put_contents("log.txt",$postStr,FILE_APPEND );
//extract post data
if (!empty($postStr)){
/* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
the best way is to check the validity of xml by yourself */
libxml_disable_entity_loader(true);
$postObj = simplexml_load_string($postStr, \'SimpleXMLElement\', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
//获取事件类型
$event = $postObj->Event;//subscribe unsubscribe
$time = time();
$textTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<Content><![CDATA[%s]]></Content>
<FuncFlag>0</FuncFlag>
</xml>";
switch($postObj->MsgType)
{
case \'event\':
if($event == \'subscribe\')
{
$contentStr = "杜丝莉 i love you";
$msgType = \'text\';
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}
break;
case \'text\':
if($keyword == \'sima\')
{
$newTpl = "<xml>
<ToUserName><![CDATA[%s]]></ToUserName>
<FromUserName><![CDATA[%s]]></FromUserName>
<CreateTime>%s</CreateTime>
<MsgType><![CDATA[%s]]></MsgType>
<ArticleCount>2</ArticleCount>
<Articles>
<item>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>
<item>
<Title><![CDATA[%s]]></Title>
<Description><![CDATA[%s]]></Description>
<PicUrl><![CDATA[%s]]></PicUrl>
<Url><![CDATA[%s]]></Url>
</item>
</Articles>
</xml>";
$msgType = \'news\';
$title1 = \'one\';
$des1 = \'this is one\';
$pic1 = \'http://www.simadongyang.com/wx/pic/one.jpg\';
$url1 = \'www.baidu.com\';
$title2 = \'two\';
$des2 = \'this is two\';
$pic2 = \'http://www.simadongyang.com/wx/pic/two.jpg\';
$url2 = \'www.sougou.com\';
$resultStr = sprintf($newTpl, $fromUsername, $toUsername, $time, $msgType, $title1,$des1,$pic1,$url1,$title2,$des2,$pic2,$url2);
echo $resultStr;
}
break;
}
/*if(!empty( $keyword ))
{
$msgType = "text";
if( $keyword == \'hello\')
{
$contentStr = "你好";
}else{
$contentStr = "Welcome to wechat world!";
}
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}else{
echo "Input something...";
}*/
}else {
echo "";
exit;
}
}
private function checkSignature()
{
// you must define TOKEN by yourself
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, $nonce);
// use SORT_STRING rule
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}
?>
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