微信Token验证代码的实现
微信开放第三方API接口,
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如果你的微信接口页面没有做好,提交保存的时候,会提示:验证Token失败。这个错误是因为,你的接口页面还没有反馈正确的信息给微信接口。微信在教程方面还做得不够成熟,就一个php示例,还是有问题的,在下篇文章我会讲到这个错误在哪。微信官方也没有跟大家说清楚怎么才能是token验证成功。下面我将给出示例告诉大家如何通过token验证。
譬如:微信接口页面是http://bbhet.com 默认页面是weixin.php,我们只需要把weixin.php的代码改为, 然后放到你得网站根目录:
官方下载地址 http://mp.weixin.qq.com/wiki/8/f9a0b8382e0b77d87b3bcc1ce6fbc104.html
方法一: 简单的PHP实现Token验证
[php] view plain copy print?
<?php
//1. 将timestamp , nonce , token 按照字典排序
$timestamp = $_GET['timestamp'];
$nonce = $_GET['nonce'];
$token = "你自定义的Token值 用于验证";
$signature = $_GET['signature'];
$array = array($timestamp,$nonce,$token);
sort($array);
//2.将排序后的三个参数拼接后用sha1加密
$tmpstr = implode('',$array);
$tmpstr = sha1($tmpstr);
//3. 将加密后的字符串与 signature 进行对比, 判断该请求是否来自微信
if($tmpstr == $signature)
{
echo $_GET['echostr'];
exit;
}
方法二: 封装类的代码实现Token验证
<?php /** * wechat php test */ //define your token define("TOKEN", "weixin"); $wechatObj = new wechatCallbackapiTest(); $wechatObj->valid(); 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 = $GLOBALS["HTTP_RAW_POST_DATA"]; //extract post data if (!empty($postStr)){ $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); $fromUsername = $postObj->FromUserName; $toUsername = $postObj->ToUserName; $keyword = trim($postObj->Content); $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>"; if(!empty( $keyword )) { $msgType = "text"; $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() { $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; $tmpArr = array($token, $timestamp, $nonce); sort($tmpArr); $tmpStr = implode( $tmpArr ); $tmpStr = sha1( $tmpStr ); if( $tmpStr == $signature ){ return true; }else{ return false; } } } ?>
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