75 lines
2.2 KiB
PHP
75 lines
2.2 KiB
PHP
<?php
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namespace top\extend\wechat\token;
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class WeChatCallbackAPITest
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{
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private $token = null;
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public function valid()
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{
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$echoStr = $_GET["echostr"];
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//valid signature , option
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if ($this->checkSignature()) {
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echo $echoStr;
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exit;
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}
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}
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public function setToken($token)
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{
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$this->token = $token;
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return $this;
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}
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public function responseMsg()
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{
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//get post data, May be due to the different environments
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$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
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//extract post data
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if (!empty($postStr)) {
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$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
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$fromUsername = $postObj->FromUserName;
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$toUsername = $postObj->ToUserName;
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$keyword = trim($postObj->Content);
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$time = time();
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$textTpl = "<xml>
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<ToUserName><![CDATA[%s]]></ToUserName>
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<FromUserName><![CDATA[%s]]></FromUserName>
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<CreateTime>%s</CreateTime>
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<MsgType><![CDATA[%s]]></MsgType>
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<Content><![CDATA[%s]]></Content>
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<FuncFlag>0</FuncFlag>
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</xml>";
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if (!empty($keyword)) {
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$msgType = "text";
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$contentStr = "Welcome to wechat world!";
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$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
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echo $resultStr;
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} else {
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echo "Input something...";
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}
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} else {
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echo "";
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exit;
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}
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}
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private function checkSignature()
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{
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$signature = $_GET["signature"];
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$timestamp = $_GET["timestamp"];
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$nonce = $_GET["nonce"];
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$token = $this->token;
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$tmpArr = array($token, $timestamp, $nonce);
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sort($tmpArr);
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$tmpStr = implode($tmpArr);
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$tmpStr = sha1($tmpStr);
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if ($tmpStr == $signature) {
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return true;
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} else {
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return false;
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}
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}
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}
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